Added tag V00.06.03 for changeset 5c34cc851c4b
authorymh <ymh.work@gmail.com>
Tue, 23 Apr 2013 22:15:10 +0200
changeset 168 f978d70a9e63
parent 167 eb97351d5e9b
child 169 a60a450b8f3b
Added tag V00.06.03 for changeset 5c34cc851c4b
client/css/renkan.css
client/img/revert.png
client/js/defaults.js
client/js/full-json.js
client/js/i18n.js
client/js/ldtjson-bin.js
client/js/list-bin.js
client/js/main.js
client/js/models.js
client/js/paper-renderer.js
client/js/twitter-bin.js
client/js/wikipedia-bin.js
client/lib/backbone-relational.js
client/lib/jquery.min.js
--- a/client/css/renkan.css	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/css/renkan.css	Tue Apr 23 22:15:10 2013 +0200
@@ -42,7 +42,7 @@
 }
 
 html {
-	overflow: hidden;
+    overflow: hidden;
 }
 
 body {
@@ -109,7 +109,7 @@
 
 .Rk-UserList {
     box-shadow: 0 2px 2px #999999;
-    position: relative; z-index: 3; display: none; padding-top: 8px;
+    position: relative; z-index: 4; display: none; padding-top: 8px;
 }
 
 .Rk-User {
@@ -131,7 +131,7 @@
 }
 
 .Rk-TopBar-Tooltip {
-    position: absolute; top: 31px; left: 50%; margin-left: -60px; width: 120px; z-index: 3; display: none;
+    position: absolute; top: 31px; left: 50%; margin-left: -60px; width: 120px; z-index: 4; display: none;
 }
 
 .Rk-TopBar-Tooltip-Contents {
@@ -185,11 +185,11 @@
 }
 
 .Rk-Save-Button.Rk-Save-ReadOnly, .Rk-Save-Button.Rk-Save-ReadOnly:hover {
-	background-position: -172px -35px;
+    background-position: -172px -35px;
 }
 
 .Rk-Save-Button.Rk-Save-Online, .Rk-Save-Button.Rk-Save-Online:hover {
-	background-position: -172px 0;
+    background-position: -172px 0;
 }
 
 .Rk-Bookmarklet-Button {
@@ -210,25 +210,41 @@
 
 /* Canvas */
 
+.Rk-Editing-Space {
+    position: absolute; left: 0; top: 35px; right: 0; bottom: 0; overflow: hidden;
+    background: -moz-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+    background: -webkit-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+    background: -ms-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+}
+
+.Rk-Editing-Space-Full {
+    top: 0;
+}
+
 .Rk-Canvas {
-	background: -moz-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
-	background: -webkit-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
-	background: -ms-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
-    position: absolute; left: 0; top: 35px; right: 0; bottom: 0; z-index: 1;
+    position: absolute; left: 0; top: 0; right: 0; bottom: 0; z-index: 2;
 }
 
-.Rk-Editing-Space-Full .Rk-Canvas {
-	top: 0;
+/* Node Labels */
+
+.Rk-Labels {
+    position: absolute; left: 0; top: 0; z-index: 1;
+    font-family: "Segoe UI", "Helvetica Neue", Arial, Helvetica, sans-serif;
+}
+
+.Rk-Label {
+    position: absolute; width: 160px; margin-left: -80px; text-align: center; font-size: 13px; line-height: 13px;
+}
+
+.Rk-Edge-Label {
+    font-size: 11px; transform-origin: 50% 0; -moz-transform-origin: 50% 0;
+    -webkit-transform-origin: 50% 0; -ms-transform-origin: 50% 0;
 }
 
 /* Editors */
 
 .Rk-Editor {
-    position: absolute; left: 0; top: 35px; right: 0; z-index: 2;
-}
-
-.Rk-Editing-Space-Full .Rk-Editor {
-	top: 0;
+    position: absolute; left: 0; top: 0; z-index: 3;
 }
 
 .Rk-Notifications {
@@ -272,7 +288,7 @@
 
 .Rk-Edit-ImgPreview {
     border: 1px solid #666; margin: 5px auto; display: block;
-    max-width: 253px !important; max-height: 100px !important;
+    max-width: 253px !important; max-height: 200px !important;
 }
 
 .Rk-Editor textarea {
@@ -309,57 +325,61 @@
 }
 
 .Rk-Edit-Size-Up, .Rk-Edit-Size-Down {
-	font-size: 13px; font-weight: bold; padding: 0 4px; background: #ffffff; color: #000000; border: 1px solid #cccccc;
-	text-decoration: none;
+    font-size: 13px; font-weight: bold; padding: 0 4px; background: #ffffff; color: #000000; border: 1px solid #cccccc;
+    text-decoration: none;
 }
 
 .Rk-Edit-Size-Up:hover, .Rk-Edit-Size-Down:hover {
-	background: #666666;
+    background: #666666;
 }
 
 .Rk-Edit-Size-Value {
-	display: inline-block;
+    display: inline-block;
     padding: 0 5px;
     text-align: center;
     width: 20px;
 }
 
 .Rk-Edit-Vocabulary-Class {
-	color: #999999; font-style: italic; font-weight: bold;
+    color: #999999; font-style: italic; font-weight: bold;
 }
 
 .Rk-Edit-Vocabulary-Property {
-	padding-left: 20px;
+    padding-left: 20px;
 }
 
 .Rk-Edit-Direction {
-	border: 1px solid #666; padding: 3px 5px; line-height: 20px; border-radius: 3px; background: #f0f0f0; cursor: pointer;
+    border: 1px solid #666; padding: 3px 5px; line-height: 20px; border-radius: 3px; background: #f0f0f0; cursor: pointer;
 }
 
 .Rk-Edit-Direction:hover {
-	background: #c0c0c0;
+    background: #c0c0c0;
 }
 
 .Rk-Display-Title a {
-	text-decoration: none; color: #000000;
+    text-decoration: none; color: #000000;
 }
 
 .Rk-Display-Title a:hover {
-	text-decoration: underline;
+    text-decoration: underline;
 }
 
 .Rk-Display-URI {
-	font-style: italic;
+    font-style: italic;
+}
+
+.Rk-Display-ImgPreview {
+    margin: 5px auto; display: block; max-width: 255px !important; max-height: 260px !important;
 }
 
 .Rk-Fold-Bins {
-	position: absolute; top: 5px; width: 12px; text-align: center; font-size: 16px; cursor: pointer;
-	line-height: 16px; padding: 4px; color: #ffffff; background: #666666; border-radius: 0 6px 6px 0;
-	font-weight: bold;
+    position: absolute; top: 5px; width: 12px; text-align: center; font-size: 16px; cursor: pointer;
+    line-height: 16px; padding: 4px; color: #ffffff; background: #666666; border-radius: 0 6px 6px 0;
+    font-weight: bold;
 }
 
 .Rk-Fold-Bins:hover {
-	background: #333333;
+    background: #333333;
 }
 
 .Rk-ZoomButtons {
@@ -522,7 +542,7 @@
     cursor: move;
 }
 
-.Rk-Bin-Item:hover {
+.Rk-Bin-Item:hover, .Rk-Bin-Item.hover {
     background: -moz-linear-gradient(top, rgba(0,0,0,.1) 20%, rgba(128,128,128,.1) 80%);
     background: -webkit-linear-gradient(top, rgba(0,0,0,.1) 20%, rgba(128,128,128,.1) 80%);
     background: -ms-linear-gradient(top, rgba(0,0,0,.1) 20%, rgba(128,128,128,.1) 80%);
@@ -551,7 +571,7 @@
 }
 
 .Rk-Bin-Main h4 a {
-	color: #303080;
+    color: #303080;
 }
 
 .Rk-Twitter-Icon {
@@ -615,7 +635,7 @@
 }
 
 .Rk-ResourceList-Image {
-	float: left; max-width: 100px; max-height: 75px; margin-right: 2px;
+    float: left; max-width: 100px; max-height: 75px; margin-right: 2px;
 }
 
 .Rk-Ldt-Icon, .Rk-Ldt-Title-Icon {
Binary file client/img/revert.png has changed
--- a/client/js/defaults.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/defaults.js	Tue Apr 23 22:15:10 2013 +0200
@@ -1,33 +1,39 @@
 Rkns.defaults = {
-	
+    
     language: (navigator.language || navigator.userLanguage || "en"),
-    	/* GUI Language */
+        /* GUI Language */
     container: "renkan",
-    	/* GUI Container DOM element ID */
+        /* GUI Container DOM element ID */
     search: [],
-    	/* List of Search Engines */
-   	bins: [],
-   		/* List of Bins */
-	static_url: "",
-		/* URL for static resources */
-	show_bins: true,
-		/* Show bins in left column */
-	properties: [],
-		/* Semantic properties for edges */
-	read_only: false,
-		/* Allows editing of renkan without changing the rest of the GUI. Can be switched on/off on the fly to block/enable editing */
-	editor_mode: true,
-		/* Switch for Publish/Edit GUI. If editor_mode is false, read_only will be true.  */
+        /* List of Search Engines */
+    bins: [],
+           /* List of Bins */
+    static_url: "",
+        /* URL for static resources */
+    show_bins: true,
+        /* Show bins in left column */
+    properties: [],
+        /* Semantic properties for edges */
+    read_only: false,
+        /* Allows editing of renkan without changing the rest of the GUI. Can be switched on/off on the fly to block/enable editing */
+    editor_mode: true,
+        /* Switch for Publish/Edit GUI. If editor_mode is false, read_only will be true.  */
     snapshot_mode: false,
-    	/* In snapshot mode, clicking on the floppy will save a snapshot. Otherwise, it will show the connection status */
-	show_top_bar: true,
-		/* Show the top bar, (title, buttons, users) */
-	default_user_color: "#303030",
-	
-	/* MINI-MAP OPTIONS */
-	
+        /* In snapshot mode, clicking on the floppy will save a snapshot. Otherwise, it will show the connection status */
+    show_top_bar: true,
+        /* Show the top bar, (title, buttons, users) */
+    default_user_color: "#303030",
+    size_bug_fix: true,
+        /* Resize the canvas after load (fixes a bug on iPad and FF Mac) */
+    force_resize: false,
+    allow_double_click: true,
+        /* Allows Double Click to create a node on an empty background */
+    element_delete_delay: 5000,
+    
+    /* MINI-MAP OPTIONS */
+    
     show_minimap: true,
-    	/* Show a small map at the bottom right */
+        /* Show a small map at the bottom right */
     minimap_width: 160,
     minimap_height: 120,
     minimap_background_color: "#ffffff",
@@ -36,53 +42,50 @@
     minimap_highlight_weight: 5,
     
     /* EDGE/NODE COMMON OPTIONS */
-   	
-   	buttons_background: "#202020",
-   	buttons_label_color: "#c000c0",
-   	buttons_label_font_size: 9,
-	
-	/* NODE DISPLAY OPTIONS */
-	
+       
+    buttons_background: "#202020",
+    buttons_label_color: "#c000c0",
+    buttons_label_font_size: 9,
+    
+    /* NODE DISPLAY OPTIONS */
+    
     show_node_circles: true,
-    	/* Show circles for nodes */
-	clip_node_images: true,
-		/* Constraint node images to circles */
-	node_size_base: 25,
-	node_stroke_width: 2,
-	selected_node_stroke_width: 4,
-	node_fill_color: "#ffffff",
-	highlighted_node_fill_color: "#ffff00",
-	node_label_color: "#000000",
-	node_label_font_size: 10,
-	node_label_font: 'Helvetica, Arial, sans-serif',
-	node_label_distance: 5,
-		/* Vertical distance between node and label */
-	node_label_max_length: 40,
-		/* Maximum displayed text length */
-	
-	/* EDGE DISPLAY OPTIONS */
-	
-	edge_stroke_width: 2,
-	selected_edge_stroke_width: 4,
-	edge_label_color: "#000000",
-	edge_label_font_size: 9,
-	edge_label_font: 'Helvetica, Arial, sans-serif',
-	edge_label_distance: -3,
-	edge_label_max_length: 20,
+        /* Show circles for nodes */
+    clip_node_images: true,
+        /* Constraint node images to circles */
+    node_size_base: 25,
+    node_stroke_width: 2,
+    selected_node_stroke_width: 4,
+    node_fill_color: "#ffffff",
+    highlighted_node_fill_color: "#ffff00",
+    node_label_distance: 5,
+        /* Vertical distance between node and label */
+    node_label_max_length: 60,
+        /* Maximum displayed text length */
+    label_untitled_nodes: "(untitled)",
+        /* Label to display on untitled nodes */
+    
+    /* EDGE DISPLAY OPTIONS */
+    
+    edge_stroke_width: 2,
+    selected_edge_stroke_width: 4,
+    edge_label_distance: 0,
+    edge_label_max_length: 20,
     edge_arrow_length: 18,
     edge_arrow_width: 12,
     edge_gap_in_bundles: 12,
+    label_untitled_edges: "",
     
     /* CONTEXTUAL DISPLAY (TOOLTIP OR EDITOR) OPTIONS */
    
-   	tooltip_width: 275,
-   	tooltip_padding: 10,
-   	tooltip_margin: 15,
+    tooltip_width: 275,
+    tooltip_padding: 10,
+    tooltip_margin: 15,
     tooltip_arrow_length : 20,
     tooltip_arrow_width : 40,
-   	tooltip_top_color: "#f0f0f0",
-   	tooltip_bottom_color: "#d0d0d0",
-   	tooltip_border_color: "#808080",
-   	tooltip_border_width: 1
-	
-}
+    tooltip_top_color: "#f0f0f0",
+    tooltip_bottom_color: "#d0d0d0",
+    tooltip_border_color: "#808080",
+    tooltip_border_width: 1
+    
+};
--- a/client/js/full-json.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/full-json.js	Tue Apr 23 22:15:10 2013 +0200
@@ -14,14 +14,14 @@
     var _save = function() {
         var _data = _proj.toJSON();
         if (!_renkan.read_only) {
-        	Rkns.$.ajax({
-	            type: _opts.http_method,
-	            url: _opts.url,
-	            contentType: "application/json",
-	            data: JSON.stringify(_data),
-	            success: function(data, textStatus, jqXHR) {
-	            }
-	        });
+            Rkns.$.ajax({
+                type: _opts.http_method,
+                url: _opts.url,
+                contentType: "application/json",
+                data: JSON.stringify(_data),
+                success: function(data, textStatus, jqXHR) {
+                }
+            });
         }
         
     }
--- a/client/js/i18n.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/i18n.js	Tue Apr 23 22:15:10 2013 +0200
@@ -21,6 +21,7 @@
         "Zoom Out": "Rapetisser l’échelle",
         "Edit": "Éditer",
         "Remove": "Supprimer",
+        "Cancel deletion": "Annuler la suppression",
         "Link to another node": "Créer un lien",
         "Enlarge": "Agrandir",
         "Shrink": "Rétrécir",
--- a/client/js/ldtjson-bin.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/ldtjson-bin.js	Tue Apr 23 22:15:10 2013 +0200
@@ -1,13 +1,13 @@
 Rkns.Ldt = {}
 
 Rkns.Ldt.Bin = function(_renkan, _opts) {
-	if (_opts.ldt_type) {
-		var resclass = Rkns.Ldt[_opts.ldt_type+"Bin"];
-		if (resclass) {
-			return new resclass(_renkan, _opts);
-		}
-	}
-	console.error("No such LDT Bin Type");
+    if (_opts.ldt_type) {
+        var resclass = Rkns.Ldt[_opts.ldt_type+"Bin"];
+        if (resclass) {
+            return new resclass(_renkan, _opts);
+        }
+    }
+    console.error("No such LDT Bin Type");
 }
 
 Rkns.Ldt.ProjectBin = Rkns.Utils.inherit(Rkns._BaseBin);
@@ -179,7 +179,7 @@
             _rgxp = new RegExp('('+rxbase+')','gi'),
             rxtest = new RegExp(rxbase,'i')
     } else {
-    	var rxbase = this.search.replace(/(\W)/g,'\\$1'),
+        var rxbase = this.search.replace(/(\W)/g,'\\$1'),
             _rgxp = new RegExp('('+rxbase+')','gi');
     }
     function highlight(_text) {
--- a/client/js/list-bin.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/list-bin.js	Tue Apr 23 22:15:10 2013 +0200
@@ -12,53 +12,53 @@
 );
 
 Rkns.ResourceList.Bin.prototype._init = function(_renkan, _opts) {
-	this.renkan = _renkan;
+    this.renkan = _renkan;
     this.title_$.html(_opts.title);
     if (_opts.list) {
-    	this.data = _opts.list;
+        this.data = _opts.list;
     }
     this.refresh();
 }
 
 Rkns.ResourceList.Bin.prototype.render = function(searchstr) {
     if (searchstr) {
-    	var _rgxp = new RegExp('('+(searchstr).replace(/(\W)/g,'\\$1')+')','gi'),
-    		rxtest = new RegExp(searchstr.replace(/(\W)/g,'\\$1'),'i');
+        var _rgxp = new RegExp('('+(searchstr).replace(/(\W)/g,'\\$1')+')','gi'),
+            rxtest = new RegExp(searchstr.replace(/(\W)/g,'\\$1'),'i');
     }
     function highlight(_text) {
-    	if (searchstr) {
-    		return _text.replace(_rgxp, "<span class='searchmatch'>$1</span>");
-    	} else {
-    		return _text;
-    	}
+        if (searchstr) {
+            return _text.replace(_rgxp, "<span class='searchmatch'>$1</span>");
+        } else {
+            return _text;
+        }
     }
     var _html = "",
         _this = this,
         count = 0;
     Rkns._(this.data).each(function(_item) {
-    	if (typeof _item === "string") {
-    		if (/^(https?:\/\/|www)/.test(_item)) {
-    			var _element = { url: _item }
-    		} else {
-    			var _element = { title: _item.replace(/[:,]?\s?(https?:\/\/|www)[\d\w\/.&?=#%-_]+\s?/,'').trim() },
-    				_match = _item.match(/(https?:\/\/|www)[\d\w\/.&?=#%-_]+/);
-				if (_match) {
-					_element.url = _match[0];
-				}
-				if (_element.title.length > 80) {
-					_element.description = _element.title;
-					_element.title = _element.title.replace(/^(.{30,60})\s.+$/,'$1…');
-				}
-    		}
-    	} else {
-    		var _element = _item;
-    	}
+        if (typeof _item === "string") {
+            if (/^(https?:\/\/|www)/.test(_item)) {
+                var _element = { url: _item }
+            } else {
+                var _element = { title: _item.replace(/[:,]?\s?(https?:\/\/|www)[\d\w\/.&?=#%-_]+\s?/,'').trim() },
+                    _match = _item.match(/(https?:\/\/|www)[\d\w\/.&?=#%-_]+/);
+                if (_match) {
+                    _element.url = _match[0];
+                }
+                if (_element.title.length > 80) {
+                    _element.description = _element.title;
+                    _element.title = _element.title.replace(/^(.{30,60})\s.+$/,'$1…');
+                }
+            }
+        } else {
+            var _element = _item;
+        }
         var title = _element.title || (_element.url || "").replace(/^https?:\/\/(www\.)?/,'').replace(/^(.{40}).+$/,'$1…'),
             url = _element.url || "",
             description = _element.description || "",
             image = _element.image || "";
         if (url && !/^https?:\/\//.test(url)) {
-        	url = 'http://' + url;
+            url = 'http://' + url;
         }
         if (searchstr && !rxtest.test(title) && !rxtest.test(description)) {
             return;
@@ -90,6 +90,6 @@
     
 Rkns.ResourceList.Bin.prototype.refresh = function() {
     if (this.data) {
-    	this.render();
+        this.render();
     }
 }
\ No newline at end of file
--- a/client/js/main.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/main.js	Tue Apr 23 22:15:10 2013 +0200
@@ -1,5 +1,5 @@
 /* 
- *  Copyright 2012 Institut de recherche et d'innovation 
+ *  Copyright 2012-2013 Institut de recherche et d'innovation 
  *  contributor(s) : Yves-Marie Haussonne, Raphael Velt, Samuel Huron
  *   
  *  contact@iri.centrepompidou.fr
@@ -52,25 +52,25 @@
         
         Rkns.$('<a>')
             .attr({
-            	href: "#",
-            	title: _renkan.translate("Close bin")
-        	})
+                href: "#",
+                title: _renkan.translate("Close bin")
+            })
             .addClass("Rk-Bin-Close")
             .html('&times;')
             .appendTo(this.$)
             .click(function() {
                 _this.destroy();
                 if (!_renkan.$.find(".Rk-Bin-Main:visible").length) {
-                	_renkan.$.find(".Rk-Bin-Main:last").slideDown();
+                    _renkan.$.find(".Rk-Bin-Main:last").slideDown();
                 }
                 _renkan.resizeBins();
                 return false;
             });
         Rkns.$('<a>')
             .attr({
-            	href: "#",
-            	title: _renkan.translate("Refresh bin")
-        	})
+                href: "#",
+                title: _renkan.translate("Refresh bin")
+            })
             .addClass("Rk-Bin-Refresh")
             .appendTo(this.$)
             .click(function() {
@@ -96,12 +96,12 @@
             },_opts.auto_refresh)
         }
     }
-}
+};
 
 Rkns._BaseBin.prototype.destroy = function() {
     this.$.detach();
     this.renkan.resizeBins();
-}
+};
 
 /* Point of entry */
 
@@ -110,19 +110,16 @@
     
     this.options = _.defaults(_opts, Rkns.defaults);
         
-	Rkns._(this.options.property_files).each(function(f) {
-		Rkns.$.getJSON(f, function(data) {
-			_this.options.properties = _this.options.properties.concat(data);
-		});
-	});
+    Rkns._(this.options.property_files).each(function(f) {
+        Rkns.$.getJSON(f, function(data) {
+            _this.options.properties = _this.options.properties.concat(data);
+        });
+    });
     
     this.read_only = this.options.read_only || !this.options.editor_mode;
 
     this.project = new Rkns.Models.Project();
     
-    this.translate = function(_text) {
-    	return (Rkns.i18n[_this.options.language] || Rkns.i18n[_this.options.language.substr(0,2)] || {})[_text] || _text;
-    }
     if (typeof this.options.user_id !== "undefined") {
         this.current_user = this.options.user_id;
     }
@@ -144,9 +141,9 @@
             _input = this.$.find(".Rk-Web-Search-Input")
             _form = this.$.find(".Rk-Web-Search-Form");
         Rkns._(this.options.search).each(function(_search, _key) {
-        	if (Rkns[_search.type] && Rkns[_search.type].Search) {
-        		_this.search_engines.push(new Rkns[_search.type].Search(_this, _search));
-        	}
+            if (Rkns[_search.type] && Rkns[_search.type].Search) {
+                _this.search_engines.push(new Rkns[_search.type].Search(_this, _search));
+            }
         });
         _select.html(
             Rkns._(this.search_engines).map(function(_search, _key) {
@@ -178,11 +175,13 @@
         this.setSearchEngine(0);
     }
     Rkns._(this.options.bins).each(function(_bin) {
-    	if (Rkns[_bin.type] && Rkns[_bin.type].Bin) {
-    		_this.tabs.push(new Rkns[_bin.type].Bin(_this, _bin));
-    	}
+        if (Rkns[_bin.type] && Rkns[_bin.type].Bin) {
+            _this.tabs.push(new Rkns[_bin.type].Bin(_this, _bin));
+        }
     });
     
+    var elementDropped = false;
+    
     this.$.find(".Rk-Bins")
         .on("click",".Rk-Bin-Title,.Rk-Bin-Title-Icon", function() {
             var _mainDiv = Rkns.$(this).siblings(".Rk-Bin-Main");
@@ -203,19 +202,43 @@
         }).mouseout(function() {
             _this.renderer.unhighlightAll();
         }).on("mousemove", ".Rk-Bin-Item", function(e) {
-			try {
-				this.dragDrop();
-			}
-			catch(err) {}
+            try {
+                this.dragDrop();
+            }
+            catch(err) {}
+        }).on("touchstart", ".Rk-Bin-Item", function(e) {
+            elementDropped = false;
+        }).on("touchmove", ".Rk-Bin-Item", function(e) {
+            e.preventDefault();
+            var touch = e.originalEvent.changedTouches[0],
+                off = _this.renderer.canvas_$.offset(),
+                w = _this.renderer.canvas_$.width(),
+                h = _this.renderer.canvas_$.height();
+            if (touch.pageX >= off.left && touch.pageX < (off.left + w) && touch.pageY >= off.top && touch.pageY < (off.top + h)) {
+                if (elementDropped) {
+                    _this.renderer.onMouseMove(touch, true);
+                } else {
+                    elementDropped = true;
+                    var div = document.createElement('div');
+                    div.appendChild(this.cloneNode(true));
+                    _this.renderer.dropData({"text/html": div.innerHTML}, touch);
+                    _this.renderer.onMouseDown(touch, true);
+                }
+            }
+        }).on("touchend", ".Rk-Bin-Item", function(e) {
+            if (elementDropped) {
+                _this.renderer.onMouseUp(e.originalEvent.changedTouches[0], true);
+            }
+            elementDropped = false;
         }).on("dragstart", ".Rk-Bin-Item", function(e) {
-        	var div = document.createElement('div');
-        	div.appendChild(this.cloneNode(true));
-			try {
-				e.originalEvent.dataTransfer.setData("text/html",div.innerHTML);
-			}
-			catch(err) {
-				e.originalEvent.dataTransfer.setData("text",div.innerHTML);
-			}
+            var div = document.createElement('div');
+            div.appendChild(this.cloneNode(true));
+            try {
+                e.originalEvent.dataTransfer.setData("text/html",div.innerHTML);
+            }
+            catch(err) {
+                e.originalEvent.dataTransfer.setData("text",div.innerHTML);
+            }
         });
     Rkns.$(window).resize(function() {
         _this.resizeBins();
@@ -230,7 +253,7 @@
     this.$.find(".Rk-Bins-Search-Form").submit(function() {
         return false
     });
-}
+};
 
 Rkns.Renkan.prototype.template = Rkns._.template(
     '<% if (options.show_bins) { %><div class="Rk-Bins"><div class="Rk-Bins-Head"><h2 class="Rk-Bins-Title"><%- translate("Select contents:")%></h2>'
@@ -242,15 +265,24 @@
     + '<ul class="Rk-Bin-List"></ul></div><% } %><div class="Rk-Render Rk-Render-<% if (options.show_bins) { %>Panel<% } else { %>Full<% } %>"></div>'
 );
 
+Rkns.Renkan.prototype.translate = function(_text) {
+    if (Rkns.i18n[this.options.language] && Rkns.i18n[this.options.language][_text]) {
+        return Rkns.i18n[this.options.language][_text];
+    }
+    if (this.options.language.length > 2 && Rkns.i18n[this.options.language.substr(0,2)] && Rkns.i18n[this.options.language.substr(0,2)][_text]) {
+        return Rkns.i18n[this.options.language.substr(0,2)][_text];
+    }
+    return _text;
+};
+
 Rkns.Renkan.prototype.onStatusChange = function() {
-	this.renderer.onStatusChange();
-}
-
+    this.renderer.onStatusChange();
+};
 
 Rkns.Renkan.prototype.setSearchEngine = function(_key) {
     this.search_engine = this.search_engines[_key];
     this.$.find(".Rk-Search-Current").attr("class","Rk-Search-Current " + this.search_engine.getBgClass());
-}
+};
 
 Rkns.Renkan.prototype.resizeBins = function() {
     var _d = + this.$.find(".Rk-Bins-Head").outerHeight();
@@ -260,13 +292,14 @@
     this.$.find(".Rk-Bin-Main").css({
         height: this.$.find(".Rk-Bins").height() - _d
     });
-}
+};
 
 /* Utility functions */
 
 Rkns.Utils = {
     _ID_AUTO_INCREMENT : 0,
     _ID_BASE : (function(_d) {
+        
         function pad(n){return n<10 ? '0'+n : n}
         function fillrand(n) {
             var _res = ''
@@ -279,40 +312,47 @@
             + pad(_d.getUTCMonth()+1) + '-'  
             + pad(_d.getUTCDate()) + '-'
             + fillrand(16);
+        
     })(new Date()),
     getUID : function(_base) {
+        
         var _n = (++this._ID_AUTO_INCREMENT).toString(16),
             _base = (typeof _base === "undefined" ? "" : _base + "-" );
         while (_n.length < 4) {
             _n = '0' + _n
         }
         return _base + this._ID_BASE + '-' + _n;
+        
     },
     getFullURL : function(url) {
-    	
-    	if(typeof(url) == 'undefined' || url == null ) {
-    		return "";
-    	}
-    	if(url.indexOf("http://")==0) {
-    		return url;
-    	}
-    	var img = new Image();
-    	img.src = url;
-    	var res = img.src;
-    	img.src = null;
-    	return res;
+        
+        if(typeof(url) == 'undefined' || url == null ) {
+            return "";
+        }
+        if(/https?:\/\//.test(url)) {
+            return url;
+        }
+        var img = new Image();
+        img.src = url;
+        var res = img.src;
+        img.src = null;
+        return res;
+        
     },
     inherit : function(_baseClass, _callbefore) {
-        var _class = function() {
+        
+        var _class = function(_arg) {
             if (typeof _callbefore === "function") {
                 _callbefore.apply(this, Array.prototype.slice.call(arguments, 0));
             }
             _baseClass.apply(this, Array.prototype.slice.call(arguments, 0));
-            if (typeof this._init == "function") {
+            if (typeof this._init == "function" && !this._initialized) {
                 this._init.apply(this, Array.prototype.slice.call(arguments, 0));
+                this._initialized = true;
             }
         }
-        _class.prototype = new _baseClass();
+        Rkns._(_class.prototype).extend(_baseClass.prototype);
         return _class;
+        
     }
-}
\ No newline at end of file
+};
--- a/client/js/models.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/models.js	Tue Apr 23 22:15:10 2013 +0200
@@ -263,7 +263,7 @@
     });
     
     var UsersList = Models.UsersList = Backbone.Collection.extend({
-    	model: RosterUser
+        model: RosterUser
     });
     
 
--- a/client/js/paper-renderer.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/paper-renderer.js	Tue Apr 23 22:15:10 2013 +0200
@@ -12,28 +12,28 @@
     _MIN_SCALE: 1/20,
     _MAX_SCALE: 20,
     _AUTOSCALE_MARGIN: 50,
+    _MOUSEMOVE_RATE: 80,
+    _DOUBLETAP_DELAY: 800,
+    _DOUBLETAP_DISTANCE: 20*20,
     _USER_PLACEHOLDER : function(_renkan) {
-    	return {
-    		color: _renkan.options.default_user_color,
-	        title: _renkan.translate("(unknown user)"),
-	        get: function(attr) {
-	            return this[attr] || false;
-	        }
-    	}
+        return {
+            color: _renkan.options.default_user_color,
+            title: _renkan.translate("(unknown user)"),
+            get: function(attr) {
+                return this[attr] || false;
+            }
+        }
     },
     _BOOKMARKLET_CODE: function(_renkan) {
-    	return "(function(a,b,c,d,e,f,h,i,j,k,l,m,n,o,p,q,r){a=document;b=a.body;c=a.location.href;j='draggable';m='text/x-iri-';d=a.createElement('div');d.innerHTML='<p_style=\"position:fixed;top:0;right:0;font:bold_18px_sans-serif;color:#fff;background:#909;padding:10px;z-index:100000;\">"
-	    + _renkan.translate("Drag items from this website, drop them in Renkan").replace(/ /g,"_")
-	    + "</p>'.replace(/_/g,String.fromCharCode(32));b.appendChild(d);e=[{r:/https?:\\/\\/[^\\/]*twitter\\.com\\//,s:'.tweet',n:'twitter'},{r:/https?:\\/\\/[^\\/]*google\\.[^\\/]+\\//,s:'.g',n:'google'},{r:/https?:\\/\\/[^\\/]*lemonde\\.fr\\//,s:'[data-vr-contentbox]',n:'lemonde'}];f=false;e.forEach(function(g){if(g.r.test(c)){f=g;}});if(f){h=function(){Array.prototype.forEach.call(a.querySelectorAll(f.s),function(i){i[j]=true;k=i.style;k.borderWidth='2px';k.borderColor='#909';k.borderStyle='solid';k.backgroundColor='rgba(200,0,180,.1)';})};window.setInterval(h,500);h();};a.addEventListener('dragstart',function(k){l=k.dataTransfer;l.setData(m+'source-uri',c);l.setData(m+'source-title',a.title);n=k.target;if(f){o=n;while(!o.attributes[j]){o=o.parentNode;if(o==b){break;}}}if(f&&o.attributes[j]){p=o.cloneNode(true);l.setData(m+'specific-site',f.n)}else{q=a.getSelection();if(q.type==='Range'||!q.type){p=q.getRangeAt(0).cloneContents();}else{p=n.cloneNode();}}r=a.createElement('div');r.appendChild(p);l.setData('text/x-iri-selected-text',r.textContent.trim());l.setData('text/x-iri-selected-html',r.innerHTML);},false);})();"
-    }
-}
-
-Rkns.Renderer.Utils = {
-	shortenText : function(_text, _maxlength) {
-		return (_text.length > _maxlength ? (_text.substr(0,_maxlength) + '…') : _text);
-	},
+        return "(function(a,b,c,d,e,f,h,i,j,k,l,m,n,o,p,q,r){a=document;b=a.body;c=a.location.href;j='draggable';m='text/x-iri-';d=a.createElement('div');d.innerHTML='<p_style=\"position:fixed;top:0;right:0;font:bold_18px_sans-serif;color:#fff;background:#909;padding:10px;z-index:100000;\">"
+        + _renkan.translate("Drag items from this website, drop them in Renkan").replace(/ /g,"_")
+        + "</p>'.replace(/_/g,String.fromCharCode(32));b.appendChild(d);e=[{r:/https?:\\/\\/[^\\/]*twitter\\.com\\//,s:'.tweet',n:'twitter'},{r:/https?:\\/\\/[^\\/]*google\\.[^\\/]+\\//,s:'.g',n:'google'},{r:/https?:\\/\\/[^\\/]*lemonde\\.fr\\//,s:'[data-vr-contentbox]',n:'lemonde'}];f=false;e.forEach(function(g){if(g.r.test(c)){f=g;}});if(f){h=function(){Array.prototype.forEach.call(a.querySelectorAll(f.s),function(i){i[j]=true;k=i.style;k.borderWidth='2px';k.borderColor='#909';k.borderStyle='solid';k.backgroundColor='rgba(200,0,180,.1)';})};window.setInterval(h,500);h();};a.addEventListener('dragstart',function(k){l=k.dataTransfer;l.setData(m+'source-uri',c);l.setData(m+'source-title',a.title);n=k.target;if(f){o=n;while(!o.attributes[j]){o=o.parentNode;if(o==b){break;}}}if(f&&o.attributes[j]){p=o.cloneNode(true);l.setData(m+'specific-site',f.n)}else{q=a.getSelection();if(q.type==='Range'||!q.type){p=q.getRangeAt(0).cloneContents();}else{p=n.cloneNode();}}r=a.createElement('div');r.appendChild(p);l.setData('text/x-iri-selected-text',r.textContent.trim());l.setData('text/x-iri-selected-html',r.innerHTML);},false);})();"
+    },
+    shortenText : function(_text, _maxlength) {
+        return (_text.length > _maxlength ? (_text.substr(0,_maxlength) + '…') : _text);
+    },
     drawEditBox : function(_options, _coords, _path, _xmargin, _selector) {
-    	_selector.css({
+        _selector.css({
             width: ( _options.tooltip_width - 2* _options.tooltip_padding ),
         })
         var _height = _selector.outerHeight() + 2* _options.tooltip_padding,
@@ -41,14 +41,13 @@
             _left = _coords.x + _isLeft * ( _xmargin + _options.tooltip_arrow_length ),
             _right = _coords.x + _isLeft * ( _xmargin + _options.tooltip_arrow_length + _options.tooltip_width ),
             _top = _coords.y - _height / 2;
+        if (_top + _height > (paper.view.size.height - _options.tooltip_margin)) {
+            _top = Math.max( paper.view.size.height - _options.tooltip_margin, _coords.y + _options.tooltip_arrow_width / 2 ) - _height;
+        }
         if (_top < _options.tooltip_margin) {
             _top = Math.min( _options.tooltip_margin, _coords.y - _options.tooltip_arrow_width / 2 );
         }
         var _bottom = _top + _height;
-        if (_bottom > (paper.view.size.height - _options.tooltip_margin)) {
-            _bottom = Math.max( paper.view.size.height - _options.tooltip_margin, _coords.y + _options.tooltip_arrow_width / 2 );
-            _top = _bottom - _height;
-        }
         _path.segments[0].point
             = _path.segments[7].point
             = _coords.add([_isLeft * _xmargin, 0]);
@@ -74,105 +73,7 @@
             left: (_options.tooltip_padding + Math.min(_left, _right)),
             top: (_options.tooltip_padding + _top)
         });
-    },
-    sector : function(_repr, _inR, _outR, _startAngle, _endAngle, _padding, _imgsrc, _caption) {
-        var _options = _repr.renderer.renkan.options,
-        	_startRads = _startAngle * Math.PI / 180,
-            _endRads = _endAngle * Math.PI / 180,
-            _img = new Image(),
-            _span = _endRads - _startRads,
-            _startdx = - Math.sin(_startRads),
-            _startdy = Math.cos(_startRads),
-            _startXIn = Math.cos(_startRads) * _inR + _padding * _startdx,
-            _startYIn = Math.sin(_startRads) * _inR + _padding * _startdy,
-            _startXOut = Math.cos(_startRads) * _outR + _padding * _startdx,
-            _startYOut = Math.sin(_startRads) * _outR + _padding * _startdy,
-            _enddx = - Math.sin(_endRads),
-            _enddy = Math.cos(_endRads),
-            _endXIn = Math.cos(_endRads) * _inR - _padding * _enddx,
-            _endYIn = Math.sin(_endRads) * _inR - _padding * _enddy,
-            _endXOut = Math.cos(_endRads) * _outR - _padding * _enddx,
-            _endYOut = Math.sin(_endRads) * _outR - _padding * _enddy,
-            _centerR = (_inR + _outR)/2,
-            _centerRads = (_startRads + _endRads) / 2,
-            _centerX = Math.cos(_centerRads) * _centerR,
-            _centerY = Math.sin(_centerRads) * _centerR,
-            _centerXIn = Math.cos(_centerRads) * _inR,
-            _centerXOut = Math.cos(_centerRads) * _outR,
-            _centerYIn = Math.sin(_centerRads) * _inR,
-            _centerYOut = Math.sin(_centerRads) * _outR,
-            _textX = Math.cos(_centerRads) * (_outR + 3),
-            _textY = Math.sin(_centerRads) * (_outR + _options.buttons_label_font_size) + _options.buttons_label_font_size / 2,
-            _segments = [];
-    	_repr.renderer.buttons_layer.activate();
-        var _path = new paper.Path();
-        _path.add([_startXIn, _startYIn]);
-        _path.arcTo([_centerXIn, _centerYIn], [_endXIn, _endYIn]);
-        _path.lineTo([_endXOut,  _endYOut]);
-        _path.arcTo([_centerXOut, _centerYOut], [_startXOut, _startYOut]);
-        _path.fillColor = _options.buttons_background;
-        _path.opacity = .5;
-        _path.closed = true;
-        _path.__representation = _repr;
-        var _text = new paper.PointText(_textX,_textY);
-        _text.characterStyle = {
-            fontSize: _options.buttons_label_font_size,
-            fillColor: _options.buttons_label_color
-        };
-        if (_textX > 2) {
-            _text.paragraphStyle.justification = 'left';
-        } else if (_textX < -2) {
-            _text.paragraphStyle.justification = 'right';
-        } else {
-            _text.paragraphStyle.justification = 'center';
-        }
-        _text.visible = false;
-        var _visible = false,
-            _restPos = new paper.Point(-200, -200),
-            _grp = new paper.Group([_path, _text]),
-            _delta = _grp.position,
-            _imgdelta = new paper.Point([_centerX, _centerY]),
-            _currentPos = new paper.Point(0,0);
-        _text.content = _caption;
-        _grp.visible = false;
-        _grp.position = _restPos;
-        var _res = {
-            show: function() {
-                _visible = true;
-                _grp.position = _currentPos.add(_delta);
-                _grp.visible = true;
-            },
-            moveTo: function(_point) {
-                _currentPos = _point;
-                if (_visible) {
-                    _grp.position = _point.add(_delta);
-                }
-            },
-            hide: function() {
-                _visible = false;
-                _grp.visible = false;
-                _grp.position = _restPos;
-            },
-            select: function() {
-                _path.opacity = .8;
-                _text.visible = true;
-            },
-            unselect: function() {
-                _path.opacity = .5;
-                _text.visible = false;
-            },
-            destroy: function() {
-                _grp.remove();
-            }
-        }
-        _img.onload = function() {
-            var _h = _img.height;
-            var _raster = new paper.Raster(_img);
-            _raster.position = _imgdelta.add(_grp.position).subtract(_delta);
-            _grp.addChild(_raster);
-        }
-        _img.src = _imgsrc;
-        return _res
+        return _path;
     }
 }
 
@@ -191,11 +92,19 @@
             this._removeBinding = function() {
                 _renderer.removeRepresentation(_this);
                 _(function() {
-                	_renderer.redraw()
-            	}).defer();
+                    _renderer.redraw()
+                }).defer();
+            }
+            this._selectBinding = function() {
+                _this.select();
+            }
+            this._unselectBinding = function() {
+                _this.unselect();
             }
             this.model.on("change", this._changeBinding );
             this.model.on("remove", this._removeBinding );
+            this.model.on("select", this._selectBinding );
+            this.model.on("unselect", this._unselectBinding );
         }
     }
 }
@@ -212,20 +121,36 @@
 
 Rkns.Renderer._BaseRepresentation.prototype.hide = function() {}
 
-Rkns.Renderer._BaseRepresentation.prototype.select = function() {}
+Rkns.Renderer._BaseRepresentation.prototype.select = function() {
+    if (this.model) {
+        this.model.trigger("selected");
+    }
+}
 
-Rkns.Renderer._BaseRepresentation.prototype.unselect = function() {}
+Rkns.Renderer._BaseRepresentation.prototype.unselect = function() {
+    if (this.model) {
+        this.model.trigger("unselected");
+    }
+}
 
 Rkns.Renderer._BaseRepresentation.prototype.highlight = function() {}
 
 Rkns.Renderer._BaseRepresentation.prototype.unhighlight = function() {}
 
-Rkns.Renderer._BaseRepresentation.prototype.mouseup = function() {}
+Rkns.Renderer._BaseRepresentation.prototype.mousedown = function() {}
+
+Rkns.Renderer._BaseRepresentation.prototype.mouseup = function() {
+    if (this.model) {
+        this.model.trigger("clicked");
+    }
+}
 
 Rkns.Renderer._BaseRepresentation.prototype.destroy = function() {
     if (this.model) {
         this.model.off("change", this._changeBinding );
         this.model.off("remove", this._removeBinding );
+        this.model.off("select", this._selectBinding );
+        this.model.off("unselect", this._unselectBinding );
     }
 }
 
@@ -269,83 +194,113 @@
     this.type = "Node";
     this.circle = new paper.Path.Circle([0, 0], 1);
     this.circle.__representation = this;
-    this.circle.fillColor = this.options.node_fill_color;
     if (this.options.show_node_circles) {
-	    this.circle.strokeWidth = this.options.node_stroke_width;
-	    this.h_ratio = 1;
+        this.circle.strokeWidth = this.options.node_stroke_width;
+        this.h_ratio = 1;
     } else {
-    	this.circle.opacity = .01;
-    	this.h_ratio = 0;
+        this.h_ratio = 0;
     }
-    this.title = new paper.PointText([0,0]);
-    this.title.characterStyle = {
-        font: this.options.node_label_font,
-        fontSize: this.options.node_label_font_size,
-        fillColor: this.options.node_label_color
-    };
+    this.title = Rkns.$('<div class="Rk-Label">').appendTo(this.renderer.labels_$);
     if (this.options.editor_mode) {
-    	this.buttons = [
-    		new Rkns.Renderer.NodeEditButton(this.renderer, null),
-    		new Rkns.Renderer.NodeRemoveButton(this.renderer, null),
-    		new Rkns.Renderer.NodeLinkButton(this.renderer, null),
-    		new Rkns.Renderer.NodeEnlargeButton(this.renderer, null),
-    		new Rkns.Renderer.NodeShrinkButton(this.renderer, null)
-    	];
-    	for (var i = 0; i < this.buttons.length; i++) {
-    		this.buttons[i].source_representation = this;
-    	}
+        this.normal_buttons = [
+            new Rkns.Renderer.NodeEditButton(this.renderer, null),
+            new Rkns.Renderer.NodeRemoveButton(this.renderer, null),
+            new Rkns.Renderer.NodeLinkButton(this.renderer, null),
+            new Rkns.Renderer.NodeEnlargeButton(this.renderer, null),
+            new Rkns.Renderer.NodeShrinkButton(this.renderer, null)
+        ];
+        this.pending_delete_buttons = [
+            new Rkns.Renderer.NodeRevertButton(this.renderer, null)
+        ];
+        this.all_buttons = this.normal_buttons.concat(this.pending_delete_buttons)
+        for (var i = 0; i < this.all_buttons.length; i++) {
+            this.all_buttons[i].source_representation = this;
+        }
+        this.active_buttons = [];
     } else {
-    	this.buttons = [];
+        this.active_buttons = this.all_buttons = [];
     }
     this.last_circle_radius = 1;
-    this.title.paragraphStyle.justification = 'center';
     
     if (this.renderer.minimap) {
-	    this.renderer.minimap.node_layer.activate();
-	    this.minimap_circle = new paper.Path.Circle([0, 0], 1);
-	    this.renderer.minimap.node_group.addChild(this.minimap_circle);
+        this.renderer.minimap.node_layer.activate();
+        this.minimap_circle = new paper.Path.Circle([0, 0], 1);
+        this.minimap_circle.__representation = this.renderer.minimap.miniframe.__representation;
+        this.renderer.minimap.node_group.addChild(this.minimap_circle);
     }
 }
 
 Rkns.Renderer.Node.prototype.redraw = function(_dontRedrawEdges) {
     var _model_coords = new paper.Point(this.model.get("position")),
-    	_baseRadius = this.options.node_size_base * Math.exp((this.model.get("size") || 0) * Rkns.Renderer._NODE_SIZE_STEP);
+        _baseRadius = this.options.node_size_base * Math.exp((this.model.get("size") || 0) * Rkns.Renderer._NODE_SIZE_STEP);
     if (!this.is_dragging || !this.paper_coords) {
         this.paper_coords = this.renderer.toPaperCoords(_model_coords);
     }
     this.circle_radius = _baseRadius * this.renderer.scale;
     if (this.last_circle_radius !== this.circle_radius) {
-    	this.buttons.forEach(function(b) {
-    		b.setSectorSize();
-    	});
-	    var square = new paper.Size(this.circle_radius, this.circle_radius),
-	    	topleft = this.paper_coords.subtract(square),
-	    	bounds = new paper.Rectangle(topleft, square.multiply(2));
-    	this.circle.fitBounds(bounds);
-	    if (this.node_image) {
-	    	this.node_image.fitBounds(bounds);
-	    }
+        this.all_buttons.forEach(function(b) {
+            b.setSectorSize();
+        });
+        var square = new paper.Size(this.circle_radius, this.circle_radius),
+            topleft = this.paper_coords.subtract(square),
+            bounds = new paper.Rectangle(topleft, square.multiply(2));
+        this.circle.fitBounds(bounds);
+        if (this.node_image) {
+            this.node_image.fitBounds(bounds);
+        }
     } else {
-    	this.circle.position = this.paper_coords;
-    	if (this.node_image) {
+        this.circle.position = this.paper_coords;
+        if (this.node_image) {
             this.node_image.position = this.paper_coords;
         }
     }
     this.last_circle_radius = this.circle_radius;
     
-    var _text = this.model.get("title") || this.renkan.translate("(untitled)");
-    this.title.content = Rkns.Renderer.Utils.shortenText(_text, this.options.node_label_max_length);
-
-    this.title.position = this.paper_coords.add([
-    	0,
-    	this.circle_radius * this.h_ratio + this.options.node_label_font_size + this.options.node_label_distance
-	]);
+    var old_act_btn = this.active_buttons;
+    
+    if (this.model.get("delete_scheduled")) {
+        var opacity = .5;
+        this.active_buttons = this.pending_delete_buttons;
+        this.circle.dashArray = [2,2];
+    } else {
+        var opacity = 1;
+        this.active_buttons = this.normal_buttons;
+        this.circle.dashArray = null;
+    }
+    
+    if (this.selected && this.renderer.isEditable()) {
+        if (old_act_btn !== this.active_buttons) {
+            old_act_btn.forEach(function(b) {
+                b.hide();
+            });
+        }
+        this.active_buttons.forEach(function(b) {
+            b.show();
+        });
+    }
+    
+    if (this.node_image) {
+        this.node_image.opacity = this.highlighted ? opacity * .5 : (opacity - .01);
+    }
+    
+    this.circle.fillColor = this.highlighted ? this.options.highlighted_node_fill_color : this.options.node_fill_color;
+    
+    this.circle.opacity = this.options.show_node_circles ? opacity : .01;
+    
+    var _text = this.model.get("title") || this.renkan.translate(this.options.label_untitled_nodes) || "";
+    _text = Rkns.Renderer.shortenText(_text, this.options.node_label_max_length);
+    this.title.text(_text);
+    this.title.css({
+        left: this.paper_coords.x,
+        top: this.paper_coords.y + this.circle_radius * this.h_ratio + this.options.node_label_distance,
+        opacity: opacity
+    })
     var _color = this.model.get("color") || (this.model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan)).get("color");
     this.circle.strokeColor = _color;
     var _pc = this.paper_coords;
-	this.buttons.forEach(function(b) {
-		b.moveTo(_pc);
-	});
+    this.all_buttons.forEach(function(b) {
+        b.moveTo(_pc);
+    });
     var _img = this.model.get("image");
     if (_img && _img !== this.img) {
         var _image = new Image(),
@@ -357,29 +312,29 @@
             _this.renderer.node_layer.activate();
             var _ratio = Math.min(2 / _image.width, 2 / _image.height );
             if (!_this.options.show_node_circles) {
-            	_this.h_ratio = Math.min(1, _image.height / _image.width);
+                _this.h_ratio = Math.min(1, _image.height / _image.width);
             }
             var _raster = new paper.Raster(_image);
             if (_this.options.clip_node_images) {
-	            var _clip = new paper.Path.Circle([0, 0], 1);
-	            _raster.scale(_ratio);
-	            _this.node_image = new paper.Group(_clip, _raster);
-	            _this.node_image.opacity = .99;
-	            /* This is a workaround to allow clipping at group level
-	             * If opacity was set to 1, paper.js would merge all clipping groups in one (known bug).
-	            */
-	            _this.node_image.clipped = true;
-            	_clip.__representation = _this;
+                var _clip = new paper.Path.Circle([0, 0], 1);
+                _raster.scale(_ratio);
+                _this.node_image = new paper.Group(_clip, _raster);
+                _this.node_image.opacity = .99;
+                /* This is a workaround to allow clipping at group level
+                 * If opacity was set to 1, paper.js would merge all clipping groups in one (known bug).
+                */
+                _this.node_image.clipped = true;
+                _clip.__representation = _this;
             } else {
-            	_this.node_image = _raster;
+                _this.node_image = _raster;
             }
             _this.node_image.__representation = _this;
-		    var square = new paper.Size(_this.circle_radius, _this.circle_radius),
-		    	topleft = _this.paper_coords.subtract(square),
-		    	bounds = new paper.Rectangle(topleft, square.multiply(2));
-		    _this.node_image.fitBounds(bounds);
+            var square = new paper.Size(_this.circle_radius, _this.circle_radius),
+                topleft = _this.paper_coords.subtract(square),
+                bounds = new paper.Rectangle(topleft, square.multiply(2));
+            _this.node_image.fitBounds(bounds);
             _this.redraw();
-    		paper.view.draw();
+            paper.view.draw();
         }
         _image.src = _img;
     }
@@ -390,34 +345,34 @@
     }
     
     if (this.renderer.minimap) {
-	    this.minimap_circle.fillColor = _color;
-	    var minipos = this.renderer.toMinimapCoords(_model_coords),
-	    	miniradius = this.renderer.minimap.scale * _baseRadius,
-	    	minisize = new paper.Size([miniradius, miniradius]);
-	    this.minimap_circle.fitBounds(minipos.subtract(minisize), minisize.multiply(2));
+        this.minimap_circle.fillColor = _color;
+        var minipos = this.renderer.toMinimapCoords(_model_coords),
+            miniradius = this.renderer.minimap.scale * _baseRadius,
+            minisize = new paper.Size([miniradius, miniradius]);
+        this.minimap_circle.fitBounds(minipos.subtract(minisize), minisize.multiply(2));
     }
     
     if (!_dontRedrawEdges) {
-    	Rkns._.each(this.project.get("edges").filter(function (ed) { return ((ed.to === this.model) || (ed.from === this.model));}), function(edge, index, list){
-	        var repr = this.renderer.getRepresentationByModel(edge);
-	    	if(repr != null && typeof repr.from_representation.paper_coords !== "undefined" && typeof repr.to_representation.paper_coords !== "undefined") {
-	    		repr.redraw();
-	    	}
-	    }, this);
+        Rkns._.each(this.project.get("edges").filter(function (ed) { return ((ed.to === this.model) || (ed.from === this.model));}), function(edge, index, list){
+            var repr = this.renderer.getRepresentationByModel(edge);
+            if(repr != null && typeof repr.from_representation.paper_coords !== "undefined" && typeof repr.to_representation.paper_coords !== "undefined") {
+                repr.redraw();
+            }
+        }, this);
     }
 
 }
 
 Rkns.Renderer.Node.prototype.paperShift = function(_delta) {
-	if (this.options.editor_mode) {
-		if (!this.renkan.read_only) {
-			this.is_dragging = true;
-			this.paper_coords = this.paper_coords.add(_delta);
-	    	this.redraw();
-    	}
-	} else {
-		this.renderer.paperShift(_delta);
-	}
+    if (this.options.editor_mode) {
+        if (!this.renkan.read_only) {
+            this.is_dragging = true;
+            this.paper_coords = this.paper_coords.add(_delta);
+            this.redraw();
+        }
+    } else {
+        this.renderer.paperShift(_delta);
+    }
 }
 
 Rkns.Renderer.Node.prototype.openEditor = function() {
@@ -428,56 +383,64 @@
 }
 
 Rkns.Renderer.Node.prototype.select = function() {
+    this.selected = true;
     this.circle.strokeWidth = this.options.selected_node_stroke_width;
     if (this.renderer.isEditable()) {
-    	this.buttons.forEach(function(b) {
-    		b.show();
-    	});
+        this.active_buttons.forEach(function(b) {
+            b.show();
+        });
     }
     var _uri = this.model.get("uri");
     if (_uri) {
-    	Rkns.$('.Rk-Bin-Item').each(function() {
-	        var _el = Rkns.$(this);
-	        if (_el.attr("data-uri") == _uri) {
-	            _el.addClass("selected");
-	        }
-	    });
+        Rkns.$('.Rk-Bin-Item').each(function() {
+            var _el = Rkns.$(this);
+            if (_el.attr("data-uri") == _uri) {
+                _el.addClass("selected");
+            }
+        });
     }
     if (!this.options.editor_mode) {
         this.openEditor();
     }
     
     if (this.renderer.minimap) {
-		this.minimap_circle.strokeWidth = this.options.minimap_highlight_weight;
-    	this.minimap_circle.strokeColor = this.options.minimap_highlight_color;
+        this.minimap_circle.strokeWidth = this.options.minimap_highlight_weight;
+        this.minimap_circle.strokeColor = this.options.minimap_highlight_color;
     }
+    this.super("select");
 }
 
 Rkns.Renderer.Node.prototype.unselect = function(_newTarget) {
     if (!_newTarget || _newTarget.source_representation !== this) {
-    	this.buttons.forEach(function(b) {
-    		b.hide();
-    	});
-    	this.circle.strokeWidth = this.options.node_stroke_width;
+        this.selected = false;
+        this.all_buttons.forEach(function(b) {
+            b.hide();
+        });
+        this.circle.strokeWidth = this.options.node_stroke_width;
         Rkns.$('.Rk-Bin-Item').removeClass("selected");
-    	if (this.renderer.minimap) {
-    		this.minimap_circle.strokeColor = undefined;
-    	}
+        if (this.renderer.minimap) {
+            this.minimap_circle.strokeColor = undefined;
+        }
+        this.super("unselect");
     }
 }
+    
+Rkns.Renderer.Node.prototype.highlight = function() {
+    if (this.highlighted) {
+        return;
+    }
+    this.highlighted = true;
+    this.redraw();
+    this.renderer.throttledPaperDraw();
+}
 
-Rkns.Renderer.Node.prototype.highlight = function() {
-    this.circle.fillColor = this.options.highlighted_node_fill_color;
-    if (this.node_image) {
-        this.node_image.opacity = .5;
+Rkns.Renderer.Node.prototype.unhighlight = function() {
+    if (!this.highlighted) {
+        return;
     }
-}
-
-Rkns.Renderer.Node.prototype.unhighlight = function(_newTarget) {
-    this.circle.fillColor = this.options.node_fill_color;
-    if (this.node_image) {
-        this.node_image.opacity = .99;
-    }
+    this.highlighted = false;
+    this.redraw();
+    this.renderer.throttledPaperDraw();
 }
 
 Rkns.Renderer.Node.prototype.saveCoords = function() {
@@ -489,16 +452,25 @@
             }
         };
     if (this.renderer.isEditable()) {
-    	this.model.set(_data);
+        this.model.set(_data);
     }
 }
 
-Rkns.Renderer.Node.prototype.mouseup = function(_event) {
-    if (this.renderer.isEditable() && this.renderer.is_dragging) {
+Rkns.Renderer.Node.prototype.mousedown = function(_event, _isTouch) {
+    if (_isTouch) {
+        this.renderer.unselectAll();
+        this.select();
+    }
+}
+
+Rkns.Renderer.Node.prototype.mouseup = function(_event, _isTouch) {
+    if (this.renderer.is_dragging && this.renderer.isEditable()) {
         this.saveCoords();
-    }
-    else {
-        this.openEditor();
+    } else {
+        if (!_isTouch && !this.model.get("delete_scheduled")) {
+            this.openEditor();
+        }
+        this.model.trigger("clicked");
     }
     this.renderer.click_target = null;
     this.renderer.is_dragging = false;
@@ -507,13 +479,13 @@
 
 Rkns.Renderer.Node.prototype.destroy = function(_event) {
     this.super("destroy");
-	this.buttons.forEach(function(b) {
-		b.destroy();
-	});
+    this.all_buttons.forEach(function(b) {
+        b.destroy();
+    });
     this.circle.remove();
     this.title.remove();
     if (this.renderer.minimap) {
-    	this.minimap_circle.remove();
+        this.minimap_circle.remove();
     }
     if (this.node_image) {
         this.node_image.remove();
@@ -536,32 +508,36 @@
     this.line.strokeWidth = this.options.edge_stroke_width;
     this.arrow = new paper.Path();
     this.arrow.add(
-    	[ 0, 0 ],
-    	[ this.options.edge_arrow_length, this.options.edge_arrow_width / 2 ],
-    	[ 0, this.options.edge_arrow_width ]
-	);
+        [ 0, 0 ],
+        [ this.options.edge_arrow_length, this.options.edge_arrow_width / 2 ],
+        [ 0, this.options.edge_arrow_width ]
+    );
     this.arrow.__representation = this;
-    this.text = new paper.PointText();
-    this.text.characterStyle = {
-        font: this.options.edge_label_font,
-        fontSize: this.options.edge_label_font_size,
-        fillColor: this.options.edge_label_color
-    };
-    this.text.paragraphStyle.justification = 'center';
-    this.text_angle = 0;
+    this.text = Rkns.$('<div class="Rk-Label Rk-Edge-Label">').appendTo(this.renderer.labels_$);
     this.arrow_angle = 0;
     if (this.options.editor_mode) {
-        this.edit_button = new Rkns.Renderer.EdgeEditButton(this.renderer, null);
-        this.edit_button.source_representation = this;
-        this.remove_button = new Rkns.Renderer.EdgeRemoveButton(this.renderer, null);
-        this.remove_button.source_representation = this;
+        this.normal_buttons = [
+            new Rkns.Renderer.EdgeEditButton(this.renderer, null),
+            new Rkns.Renderer.EdgeRemoveButton(this.renderer, null),
+        ];
+        this.pending_delete_buttons = [
+            new Rkns.Renderer.EdgeRevertButton(this.renderer, null)
+        ];
+        this.all_buttons = this.normal_buttons.concat(this.pending_delete_buttons)
+        for (var i = 0; i < this.all_buttons.length; i++) {
+            this.all_buttons[i].source_representation = this;
+        }
+        this.active_buttons = [];
+    } else {
+        this.active_buttons = this.all_buttons = [];
     }
     
     if (this.renderer.minimap) {
-    	this.renderer.minimap.edge_layer.activate();
-	    this.minimap_line = new paper.Path();
-	    this.minimap_line.add([0,0],[0,0]);
-	    this.minimap_line.strokeWidth = 1;
+        this.renderer.minimap.edge_layer.activate();
+        this.minimap_line = new paper.Path();
+        this.minimap_line.add([0,0],[0,0]);
+        this.minimap_line.__representation = this.renderer.minimap.miniframe.__representation;
+        this.minimap_line.strokeWidth = 1;
     }
 }
 
@@ -569,7 +545,7 @@
     this.from_representation = this.renderer.getRepresentationByModel(this.model.get("from"));
     this.to_representation = this.renderer.getRepresentationByModel(this.model.get("to"));
     if (!this.from_representation || !this.to_representation) {
-    	return;
+        return;
     }
     var _p0a = this.from_representation.paper_coords,
         _p1a = this.to_representation.paper_coords,
@@ -585,8 +561,31 @@
         _textdelta = _ortho.multiply(this.options.edge_label_distance),
         _handle = _v.divide(3),
         _color = this.model.get("color") || this.model.get("color") || (this.model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan)).get("color");
+    
+    if (this.model.get("delete_scheduled") || this.from_representation.model.get("delete_scheduled") || this.to_representation.model.get("delete_scheduled")) {
+        var opacity = .5;
+        this.line.dashArray = [2, 2];
+    } else {
+        var opacity = 1;
+        this.line.dashArray = null;
+    }
+    
+    var old_act_btn = this.active_buttons;
+    
+    this.active_buttons = this.model.get("delete_scheduled") ? this.pending_delete_buttons : this.normal_buttons;
+    
+    if (this.selected && this.renderer.isEditable() && old_act_btn !== this.active_buttons) {
+        old_act_btn.forEach(function(b) {
+            b.hide();
+        });
+        this.active_buttons.forEach(function(b) {
+            b.show();
+        });
+    }
+    
     this.paper_coords = _p0b.add(_p1b).divide(2);
     this.line.strokeColor = _color;
+    this.line.opacity = opacity;
     this.line.segments[0].point = _p0a;
     this.line.segments[1].point = this.paper_coords;
     this.line.segments[1].handleIn = _handle.multiply(-1);
@@ -594,6 +593,7 @@
     this.line.segments[2].point = _p1a;
     this.arrow.rotate(_a - this.arrow_angle);
     this.arrow.fillColor = _color;
+    this.arrow.opacity = opacity;
     this.arrow.position = this.paper_coords;
     this.arrow_angle = _a;
     if (_a > 90) {
@@ -604,20 +604,29 @@
         _a += 180;
         _textdelta = _textdelta.multiply(-1);
     }
-    this.text.rotate(_a - this.text_angle);
-    var _text = this.model.get("title");
-    this.text.content = Rkns.Renderer.Utils.shortenText(_text, this.options.edge_label_max_length);
-    this.text.position = this.paper_coords.add(_textdelta);
+    var _text = this.model.get("title") || this.renkan.translate(this.options.label_untitled_edges) || "";
+    _text = Rkns.Renderer.shortenText(_text, this.options.node_label_max_length);
+    this.text.text(_text);
+    var _textpos = this.paper_coords.add(_textdelta);
+    this.text.css({
+        left: _textpos.x,
+        top: _textpos.y,
+        transform: "rotate(" + _a + "deg)",
+        "-moz-transform": "rotate(" + _a + "deg)",
+        "-webkit-transform": "rotate(" + _a + "deg)",
+        opacity: opacity
+    });
     this.text_angle = _a;
-    if (this.options.editor_mode) {
-	    this.edit_button.moveTo(this.paper_coords);
-	    this.remove_button.moveTo(this.paper_coords);
-    }
+    
+    var _pc = this.paper_coords;
+    this.all_buttons.forEach(function(b) {
+        b.moveTo(_pc);
+    });
     
     if (this.renderer.minimap) {
-	    this.minimap_line.strokeColor = _color;
-	    this.minimap_line.segments[0].point = this.renderer.toMinimapCoords(new paper.Point(this.from_representation.model.get("position")));
- 	    this.minimap_line.segments[1].point = this.renderer.toMinimapCoords(new paper.Point(this.to_representation.model.get("position")));
+        this.minimap_line.strokeColor = _color;
+        this.minimap_line.segments[0].point = this.renderer.toMinimapCoords(new paper.Point(this.from_representation.model.get("position")));
+         this.minimap_line.segments[1].point = this.renderer.toMinimapCoords(new paper.Point(this.to_representation.model.get("position")));
     }
 }
 
@@ -629,48 +638,64 @@
 }
 
 Rkns.Renderer.Edge.prototype.select = function() {
+    this.selected = true;
     this.line.strokeWidth = this.options.selected_edge_stroke_width;
     if (this.renderer.isEditable()) {
-	    this.edit_button.show();
-	    this.remove_button.show();
-   	}
+        this.active_buttons.forEach(function(b) {
+            b.show();
+        });
+    }
     if (!this.options.editor_mode) {
         this.openEditor();
     }
+    this.super("select");
 }
 
 Rkns.Renderer.Edge.prototype.unselect = function(_newTarget) {
     if (!_newTarget || _newTarget.source_representation !== this) {
-    	if (this.options.editor_mode) {
-	        this.edit_button.hide();
-	        this.remove_button.hide();
+        this.selected = false;
+        if (this.options.editor_mode) {
+            this.all_buttons.forEach(function(b) {
+                b.hide();
+            });
         }
         this.line.strokeWidth = this.options.edge_stroke_width;
+        this.super("unselect");
     }
 }
 
-Rkns.Renderer.Edge.prototype.mouseup = function(_event) {
-    if (!this.renkan.read_only) {
-        if (this.renderer.is_dragging) {
-            this.from_representation.saveCoords();
-            this.to_representation.saveCoords();
-        } else {
+Rkns.Renderer.Edge.prototype.mousedown = function(_event, _isTouch) {
+    if (_isTouch) {
+        this.renderer.unselectAll();
+        this.select();
+    }
+}
+
+Rkns.Renderer.Edge.prototype.mouseup = function(_event, _isTouch) {
+    if (!this.renkan.read_only && this.renderer.is_dragging) {
+        this.from_representation.saveCoords();
+        this.to_representation.saveCoords();
+        this.from_representation.is_dragging = false;
+        this.to_representation.is_dragging = false;
+    } else {
+        if (!_isTouch) {
             this.openEditor();
         }
+        this.model.trigger("clicked");
     }
     this.renderer.click_target = null;
     this.renderer.is_dragging = false;
 }
 
 Rkns.Renderer.Edge.prototype.paperShift = function(_delta) {
-	if (this.options.editor_mode) {
-		if (!this.options.read_only) {
-		    this.from_representation.paperShift(_delta);
-		    this.to_representation.paperShift(_delta);
-	    }
-	} else {
-		this.renderer.paperShift(_delta);
-	}
+    if (this.options.editor_mode) {
+        if (!this.options.read_only) {
+            this.from_representation.paperShift(_delta);
+            this.to_representation.paperShift(_delta);
+        }
+    } else {
+        this.renderer.paperShift(_delta);
+    }
 }
 
 Rkns.Renderer.Edge.prototype.destroy = function() {
@@ -679,12 +704,11 @@
     this.arrow.remove();
     this.text.remove();
     if (this.renderer.minimap) {
-   	    this.minimap_line.remove();
+        this.minimap_line.remove();
     }
-    if (this.options.editor_mode) {
-	    this.edit_button.destroy();
-	    this.remove_button.destroy();
-   	}
+    this.all_buttons.forEach(function(b) {
+        b.destroy();
+    });
     var _this = this;
     this.bundle.edges = Rkns._(this.bundle.edges).reject(function(_edge) {
         return _edge === _this;
@@ -697,20 +721,22 @@
 
 Rkns.Renderer.TempEdge.prototype._init = function() {
     this.renderer.edge_layer.activate();
-    this.type = "temp-edge";
+    this.type = "Temp-edge";
     
     var _color = (this.project.get("users").get(this.renkan.current_user) || Rkns.Renderer._USER_PLACEHOLDER(this.renkan)).get("color");
     this.line = new paper.Path();
     this.line.strokeColor = _color;
+    this.line.dashArray = [4, 2];
+    this.line.strokeWidth = this.options.selected_edge_stroke_width;
     this.line.add([0,0],[0,0]);
     this.line.__representation = this;
     this.arrow = new paper.Path();
     this.arrow.fillColor = _color;
     this.arrow.add(
-    	[ 0, 0 ],
-    	[ this.options.edge_arrow_length, this.options.edge_arrow_width / 2 ],
-    	[ 0, this.options.edge_arrow_width ]
-	);
+        [ 0, 0 ],
+        [ this.options.edge_arrow_length, this.options.edge_arrow_width / 2 ],
+        [ 0, this.options.edge_arrow_width ]
+    );
     this.arrow.__representation = this;
     this.arrow_angle = 0;
 }
@@ -728,34 +754,38 @@
 }
 
 Rkns.Renderer.TempEdge.prototype.paperShift = function(_delta) {
-	if (!this.renderer.isEditable()) {
-		this.renderer.removeRepresentation(_this);
-    	paper.view.draw();
-    	return;
-	}
+    if (!this.renderer.isEditable()) {
+        this.renderer.removeRepresentation(_this);
+        paper.view.draw();
+        return;
+    }
     this.end_pos = this.end_pos.add(_delta);
     var _hitResult = paper.project.hitTest(this.end_pos);
     this.renderer.findTarget(_hitResult);
     this.redraw();
 }
 
-Rkns.Renderer.TempEdge.prototype.mouseup = function(_event) {
+Rkns.Renderer.TempEdge.prototype.mouseup = function(_event, _isTouch) {
     var _hitResult = paper.project.hitTest(_event.point),
         _model = this.from_representation.model,
         _endDrag = true;
     if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
         var _target = _hitResult.item.__representation;
-        if (_target.type === "Node" && _model !== _target.model) {
-            var _data = {
-                id: Rkns.Utils.getUID('edge'),
-                created_by: this.renkan.current_user,
-                from: _model.get("_id"),
-                to: _target.model.get("_id")
-            };
-            if (this.renderer.isEditable()) {
-            	this.project.addEdge(_data);
+        if (_target.type.substr(0,4) === "Node") {
+            var _destmodel = _target.model || _target.source_representation.model;
+            if (_model !== _destmodel) {
+                var _data = {
+                    id: Rkns.Utils.getUID('edge'),
+                    created_by: this.renkan.current_user,
+                    from: _model,
+                    to: _destmodel
+                };
+                if (this.renderer.isEditable()) {
+                    this.project.addEdge(_data);
+                }
             }
         }
+        
         if (_model === _target.model || (_target.source_representation && _target.source_representation.model === _model)) {
             _endDrag = false;
             this.renderer.is_dragging = true;
@@ -776,184 +806,9 @@
 
 /* */
 
-Rkns.Renderer.NodeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.NodeEditor.prototype._init = function() {
-    this.renderer.buttons_layer.activate();
-    this.type = "editor";
-    this.editor_block = new paper.Path();
-    var _pts = Rkns._(Rkns._.range(8)).map(function() {return [0,0]});
-    this.editor_block.add.apply(this.editor_block, _pts);
-    this.editor_block.strokeWidth = this.options.tooltip_border_width;
-    this.editor_block.strokeColor = this.options.tooltip_border_color;
-    this.editor_block.opacity = .8;
-    this.editor_$ = Rkns.$('<div>')
-        .appendTo(this.renderer.editor_$)
-        .css({
-            position: "absolute",
-            opacity: .8
-        })
-        .hide();
-}
-
-Rkns.Renderer.NodeEditor.prototype.template = Rkns._.template(
-    '<h2><span class="Rk-CloseX">&times;</span><%-translate("Edit Node")%></span></h2>'
-    + '<p><label><%-translate("Title:")%></label><input class="Rk-Edit-Title" type="text" value="<%-node.title%>"/></p>'
-    + '<p><label><%-translate("URI:")%></label><input class="Rk-Edit-URI" type="text" value="<%-node.uri%>"/><a class="Rk-Edit-Goto" href="<%-node.uri%>" target="_blank"></a></p>'
-    + '<p><label><%-translate("Description:")%></label><textarea class="Rk-Edit-Description"><%-node.description%></textarea></p>'
-    + '<p><span class="Rk-Editor-Label"><%-translate("Size:")%></span><a href="#" class="Rk-Edit-Size-Down">-</a><span class="Rk-Edit-Size-Value"><%-node.size%></span><a href="#" class="Rk-Edit-Size-Up">+</a></p>'
-    + '<div class="Rk-Editor-p"><span class="Rk-Editor-Label"><%-translate("Node color:")%></span><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%-node.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
-    + '<% _(Rkns.pickerColors).each(function(c) { %><li data-color="<%=c%>" style="background: <%=c%>"></li><% }); %></ul><span class="Rk-Edit-ColorPicker-Text"><%- translate("Choose color") %></span></div></div>'
-    + '<img class="Rk-Edit-ImgPreview" src="<%-node.image || node.image_placeholder%>" />'
-    + '<p><label><%-translate("Image URL:")%></label><input class="Rk-Edit-Image" type="text" value="<%-node.image%>"/></p>'
-    + '<p><label><%-translate("Choose Image File:")%></label><input class="Rk-Edit-Image-File" type="file" accept="image/*"/></p>'    
-    + '<% if (node.has_creator) { %><p><span class="Rk-Editor-Label"><%-translate("Created by:")%></span> <span class="Rk-UserColor" style="background:<%-node.created_by_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(node.created_by_title, 25) %></p><% } %>'
-);
-
-Rkns.Renderer.NodeEditor.prototype.readOnlyTemplate = Rkns._.template(
-    '<h2><span class="Rk-CloseX">&times;</span><span class="Rk-UserColor" style="background:<%-node.color%>;"></span>'
-    + '<span class="Rk-Display-Title"><% if (node.uri) { %><a href="<%-node.uri%>" target="_blank"><% } %><%-node.title%><% if (node.uri) { %></a><% } %></span></h2>'
-    + '<% if (node.uri) { %><p class="Rk-Display-URI"><a href="<%-node.uri%>" target="_blank"><%-node.short_uri%></a></p><% } %>'
-    + '<p><%-node.description%></p>'
-    + '<% if (node.has_creator) { %><p><span class="Rk-Editor-Label"><%-translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-node.created_by_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(node.created_by_title, 25) %></p><% } %>'
-);
+Rkns.Renderer._BaseEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
 
-Rkns.Renderer.NodeEditor.prototype.draw = function() {
-    var _model = this.source_representation.model,
-        _created_by = _model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan),
-        _template = (this.renderer.isEditable() ? this.template : this.readOnlyTemplate ),
-        _image_placeholder = this.options.static_url + "img/image-placeholder.png",
-        _size = (_model.get("size") || 0);
-    this.editor_$
-        .html(_template({
-            node: {
-            	has_creator: !!_model.get("created_by"),
-                title: _model.get("title"),
-                uri: _model.get("uri"),
-                short_uri:  Rkns.Renderer.Utils.shortenText((_model.get("uri") || "").replace(/^(https?:\/\/)?(www\.)?/,'').replace(/\/$/,''),40),
-                description: _model.get("description"),
-                image: _model.get("image") || "",
-                image_placeholder: _image_placeholder,
-                color: _model.get("color") || _created_by.get("color"),
-                created_by_color: _created_by.get("color"),
-                created_by_title: _created_by.get("title"),
-                size: (_size > 0 ? "+" : "") + _size
-            },
-            translate: this.renkan.translate
-        }));
-    this.redraw();
-    var _this = this,
-    	closeEditor = function() {
-    		_this.renderer.removeRepresentation(_this);
-        	paper.view.draw();
-    	}
-    	
-    this.editor_$.find(".Rk-CloseX").click(closeEditor);
-    
-    if (this.renderer.isEditable()) {
-    	
-    	var onFieldChange = Rkns._(function() {
-    		Rkns._(function() {
-	            if (_this.renderer.isEditable()) {
-		            var _uri = _this.editor_$.find(".Rk-Edit-URI").val(),
-		                _image = _this.editor_$.find(".Rk-Edit-Image").val();
-		            _this.editor_$.find(".Rk-Edit-ImgPreview").attr("src", _image || _image_placeholder);
-		            _this.editor_$.find(".Rk-Edit-Goto").attr("href",_uri);
-		            var _data = {
-		                title: _this.editor_$.find(".Rk-Edit-Title").val(),
-		                description: _this.editor_$.find(".Rk-Edit-Description").val(),
-		                uri: _uri,
-		                image: _image
-		            }
-	            	_model.set(_data);
-	            	_this.redraw();
-	            } else {
-	            	closeEditor();
-	            }
-	            
-    		}).defer();
-    	}).throttle(500);
-    	
-    	this.editor_$.find("input, textarea").bind("change keyup paste", onFieldChange);
-    	
-        this.editor_$.find(".Rk-Edit-Image-File").bind("change", function() {
-        	if (this.files.length) {
-        		var f = this.files[0],
-        			fr = new FileReader();
-    			if (f.type.substr(0,5) !== "image") {
-    				alert(_this.renkan.translate("This file is not an image"));
-    				return;
-    			}
-    			if (f.size > (Rkns.Renderer._IMAGE_MAX_KB * 1024)) {
-    				alert(_this.renkan.translate("Image size must be under ")+Rkns.Renderer._IMAGE_MAX_KB+_this.renkan.translate("KB"));
-    				return;
-    			}
-        		fr.onload = function(e) {
-        			_this.editor_$.find(".Rk-Edit-Image").val(e.target.result);
-        			onFieldChange();
-        		}
-        		fr.readAsDataURL(f);
-        	}
-        });
-        this.editor_$.find(".Rk-Edit-Title")[0].focus();
-        this.editor_$.find(".Rk-Edit-ColorPicker-Wrapper").hover(
-            function() { _this.editor_$.find(".Rk-Edit-ColorPicker").show(); },
-            function() { _this.editor_$.find(".Rk-Edit-ColorPicker").hide(); }
-        );
-        this.editor_$.find(".Rk-Edit-ColorPicker li").hover(
-            function() { _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color")); },
-            function() { _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan)).get("color")) }
-        ).click(function() {
-            if (_this.renderer.isEditable()) {
-	            _model.set("color", $(this).attr("data-color"));
-				paper.view.draw();
-            } else {
-            	closeEditor();
-            }
-        });
-        
-        function shiftSize(n) {
-        	if (_this.renderer.isEditable()) {
-	        	var _newsize = n+(_model.get("size") || 0);
-	        	_this.editor_$.find(".Rk-Edit-Size-Value").text((_newsize > 0 ? "+" : "") + _newsize);
-	        	_model.set("size", _newsize);
-				paper.view.draw();
-			} else {
-				closeEditor();
-			}
-        }
-        
-        this.editor_$.find(".Rk-Edit-Size-Down").click(function() {
-        	shiftSize(-1);
-        	return false;
-        });
-        this.editor_$.find(".Rk-Edit-Size-Up").click(function() {
-        	shiftSize(1);
-        	return false;
-        });
-    }
-    this.editor_$.find("img").load(function() {
-        _this.redraw();
-    });
-}
-
-Rkns.Renderer.NodeEditor.prototype.redraw = function() {
-    var _coords = this.source_representation.paper_coords;
-    Rkns.Renderer.Utils.drawEditBox(this.options, _coords, this.editor_block, this.source_representation.circle_radius * .75, this.editor_$);
-    this.editor_$.show();
-    paper.view.draw();
-}
-
-Rkns.Renderer.NodeEditor.prototype.destroy = function() {
-    this.editor_block.remove();
-    this.editor_$.detach();
-}
-
-/* */
-
-Rkns.Renderer.EdgeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.EdgeEditor.prototype._init = function() {
+Rkns.Renderer._BaseEditor.prototype._init = function() {
     this.renderer.buttons_layer.activate();
     this.type = "editor";
     this.editor_block = new paper.Path();
@@ -971,21 +826,207 @@
         .hide();
 }
 
+Rkns.Renderer._BaseEditor.prototype.destroy = function() {
+    this.editor_block.remove();
+    this.editor_$.remove();
+}
+
+/* */
+
+Rkns.Renderer.NodeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseEditor);
+
+Rkns.Renderer.NodeEditor.prototype.template = Rkns._.template(
+    '<h2><span class="Rk-CloseX">&times;</span><%-renkan.translate("Edit Node")%></span></h2>'
+    + '<p><label><%-renkan.translate("Title:")%></label><input class="Rk-Edit-Title" type="text" value="<%-node.title%>"/></p>'
+    + '<p><label><%-renkan.translate("URI:")%></label><input class="Rk-Edit-URI" type="text" value="<%-node.uri%>"/><a class="Rk-Edit-Goto" href="<%-node.uri%>" target="_blank"></a></p>'
+    + '<p><label><%-renkan.translate("Description:")%></label><textarea class="Rk-Edit-Description"><%-node.description%></textarea></p>'
+    + '<p><span class="Rk-Editor-Label"><%-renkan.translate("Size:")%></span><a href="#" class="Rk-Edit-Size-Down">-</a><span class="Rk-Edit-Size-Value"><%-node.size%></span><a href="#" class="Rk-Edit-Size-Up">+</a></p>'
+    + '<div class="Rk-Editor-p"><span class="Rk-Editor-Label"><%-renkan.translate("Node color:")%></span><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%-node.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
+    + '<% _(Rkns.pickerColors).each(function(c) { %><li data-color="<%=c%>" style="background: <%=c%>"></li><% }); %></ul><span class="Rk-Edit-ColorPicker-Text"><%- renkan.translate("Choose color") %></span></div></div>'
+    + '<img class="Rk-Edit-ImgPreview" src="<%-node.image || node.image_placeholder%>" />'
+    + '<p><label><%-renkan.translate("Image URL:")%></label><input class="Rk-Edit-Image" type="text" value="<%-node.image%>"/></p>'
+    + '<p><label><%-renkan.translate("Choose Image File:")%></label><input class="Rk-Edit-Image-File" type="file" accept="image/*"/></p>'    
+    + '<% if (node.has_creator) { %><p><span class="Rk-Editor-Label"><%-renkan.translate("Created by:")%></span> <span class="Rk-UserColor" style="background:<%-node.created_by_color%>;"></span><%- Rkns.Renderer.shortenText(node.created_by_title, 25) %></p><% } %>'
+);
+
+Rkns.Renderer.NodeEditor.prototype.readOnlyTemplate = Rkns._.template(
+    '<h2><span class="Rk-CloseX">&times;</span><span class="Rk-UserColor" style="background:<%-node.color%>;"></span>'
+    + '<span class="Rk-Display-Title"><% if (node.uri) { %><a href="<%-node.uri%>" target="_blank"><% } %><%-node.title%><% if (node.uri) { %></a><% } %></span></h2>'
+    + '<% if (node.uri) { %><p class="Rk-Display-URI"><a href="<%-node.uri%>" target="_blank"><%-node.short_uri%></a></p><% } %>'
+    + '<p><%-node.description%></p>'
+    + '<% if (node.image) { %><img class="Rk-Display-ImgPreview" src="<%-node.image%>" /><% } %>'
+    + '<% if (node.has_creator) { %><p><span class="Rk-Editor-Label"><%-renkan.translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-node.created_by_color%>;"></span><%- Rkns.Renderer.shortenText(node.created_by_title, 25) %></p><% } %>'
+);
+
+Rkns.Renderer.NodeEditor.prototype.draw = function() {
+    var _model = this.source_representation.model,
+        _created_by = _model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan),
+        _template = (this.renderer.isEditable() ? this.template : this.readOnlyTemplate ),
+        _image_placeholder = this.options.static_url + "img/image-placeholder.png",
+        _size = (_model.get("size") || 0);
+    this.editor_$
+        .html(_template({
+            node: {
+                has_creator: !!_model.get("created_by"),
+                title: _model.get("title"),
+                uri: _model.get("uri"),
+                short_uri:  Rkns.Renderer.shortenText((_model.get("uri") || "").replace(/^(https?:\/\/)?(www\.)?/,'').replace(/\/$/,''),40),
+                description: _model.get("description"),
+                image: _model.get("image") || "",
+                image_placeholder: _image_placeholder,
+                color: _model.get("color") || _created_by.get("color"),
+                created_by_color: _created_by.get("color"),
+                created_by_title: _created_by.get("title"),
+                size: (_size > 0 ? "+" : "") + _size
+            },
+            renkan: this.renkan
+        }));
+    this.redraw();
+    var _this = this,
+        closeEditor = function() {
+            _this.renderer.removeRepresentation(_this);
+            paper.view.draw();
+        }
+        
+    this.editor_$.find(".Rk-CloseX").click(closeEditor);
+    
+    if (this.renderer.isEditable()) {
+        
+        var onFieldChange = Rkns._(function() {
+            Rkns._(function() {
+                if (_this.renderer.isEditable()) {
+                    var _uri = _this.editor_$.find(".Rk-Edit-URI").val(),
+                        _image = _this.editor_$.find(".Rk-Edit-Image").val();
+                    _this.editor_$.find(".Rk-Edit-ImgPreview").attr("src", _image || _image_placeholder);
+                    _this.editor_$.find(".Rk-Edit-Goto").attr("href",_uri);
+                    var _data = {
+                        title: _this.editor_$.find(".Rk-Edit-Title").val(),
+                        description: _this.editor_$.find(".Rk-Edit-Description").val(),
+                        uri: _uri,
+                        image: _image
+                    }
+                    _model.set(_data);
+                    _this.redraw();
+                } else {
+                    closeEditor();
+                }
+                
+            }).defer();
+        }).throttle(500);
+        
+        this.editor_$.on("keyup", function(_e) {
+            if (_e.keyCode === 27) {
+                closeEditor();
+            }
+        });
+        
+        this.editor_$.find("input, textarea").on("change keyup paste", onFieldChange);
+        
+        this.editor_$.find(".Rk-Edit-Image-File").change(function() {
+            if (this.files.length) {
+                var f = this.files[0],
+                    fr = new FileReader();
+                if (f.type.substr(0,5) !== "image") {
+                    alert(_this.renkan.translate("This file is not an image"));
+                    return;
+                }
+                if (f.size > (Rkns.Renderer._IMAGE_MAX_KB * 1024)) {
+                    alert(_this.renkan.translate("Image size must be under ")+Rkns.Renderer._IMAGE_MAX_KB+_this.renkan.translate("KB"));
+                    return;
+                }
+                fr.onload = function(e) {
+                    _this.editor_$.find(".Rk-Edit-Image").val(e.target.result);
+                    onFieldChange();
+                }
+                fr.readAsDataURL(f);
+            }
+        });
+        this.editor_$.find(".Rk-Edit-Title")[0].focus();
+        
+        var _picker = _this.editor_$.find(".Rk-Edit-ColorPicker");
+        
+        this.editor_$.find(".Rk-Edit-ColorPicker-Wrapper").hover(
+            function(_e) {
+                _e.preventDefault();
+                _picker.show();
+            },
+            function(_e) {
+                _e.preventDefault();
+                _picker.hide();
+            }
+        );
+        
+        _picker.find("li").hover(
+            function(_e) {
+                _e.preventDefault();
+                _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color"));
+            },
+            function(_e) {
+                _e.preventDefault();
+                _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(_this.renkan)).get("color"))
+            }
+        ).click(function(_e) {
+            _e.preventDefault();
+            if (_this.renderer.isEditable()) {
+                _model.set("color", $(this).attr("data-color"));
+                _picker.hide();
+                paper.view.draw();
+            } else {
+                closeEditor();
+            }
+        });
+        
+        function shiftSize(n) {
+            if (_this.renderer.isEditable()) {
+                var _newsize = n+(_model.get("size") || 0);
+                _this.editor_$.find(".Rk-Edit-Size-Value").text((_newsize > 0 ? "+" : "") + _newsize);
+                _model.set("size", _newsize);
+                paper.view.draw();
+            } else {
+                closeEditor();
+            }
+        }
+        
+        this.editor_$.find(".Rk-Edit-Size-Down").click(function() {
+            shiftSize(-1);
+            return false;
+        });
+        this.editor_$.find(".Rk-Edit-Size-Up").click(function() {
+            shiftSize(1);
+            return false;
+        });
+    }
+    this.editor_$.find("img").load(function() {
+        _this.redraw();
+    });
+}
+
+Rkns.Renderer.NodeEditor.prototype.redraw = function() {
+    var _coords = this.source_representation.paper_coords;
+    Rkns.Renderer.drawEditBox(this.options, _coords, this.editor_block, this.source_representation.circle_radius * .75, this.editor_$);
+    this.editor_$.show();
+    paper.view.draw();
+}
+
+/* */
+
+Rkns.Renderer.EdgeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseEditor);
+
 Rkns.Renderer.EdgeEditor.prototype.template = Rkns._.template(
-    '<h2><span class="Rk-CloseX">&times;</span><%-translate("Edit Edge")%></span></h2>'
-    + '<p><label><%-translate("Title:")%></label><input class="Rk-Edit-Title" type="text" value="<%-edge.title%>"/></p>'
-    + '<p><label><%-translate("URI:")%></label><input class="Rk-Edit-URI" type="text" value="<%-edge.uri%>"/><a class="Rk-Edit-Goto" href="<%-edge.uri%>" target="_blank"></a></p>'
-    + '<% if (properties.length) { %><p><label><%-translate("Choose from vocabulary:")%></label><select class="Rk-Edit-Vocabulary">'
-    + '<% _(properties).each(function(ontology) { %><option class="Rk-Edit-Vocabulary-Class" value=""><%- translate(ontology.label) %></option>'
+    '<h2><span class="Rk-CloseX">&times;</span><%-renkan.translate("Edit Edge")%></span></h2>'
+    + '<p><label><%-renkan.translate("Title:")%></label><input class="Rk-Edit-Title" type="text" value="<%-edge.title%>"/></p>'
+    + '<p><label><%-renkan.translate("URI:")%></label><input class="Rk-Edit-URI" type="text" value="<%-edge.uri%>"/><a class="Rk-Edit-Goto" href="<%-edge.uri%>" target="_blank"></a></p>'
+    + '<% if (properties.length) { %><p><label><%-renkan.translate("Choose from vocabulary:")%></label><select class="Rk-Edit-Vocabulary">'
+    + '<% _(properties).each(function(ontology) { %><option class="Rk-Edit-Vocabulary-Class" value=""><%- renkan.translate(ontology.label) %></option>'
     + '<% _(ontology.properties).each(function(property) { var uri = ontology["base-uri"] + property.uri; %><option class="Rk-Edit-Vocabulary-Property" value="<%- uri %>'
-    + '"<% if (uri === edge.uri) { %> selected<% } %>><%- translate(property.label) %></option>'
+    + '"<% if (uri === edge.uri) { %> selected<% } %>><%- renkan.translate(property.label) %></option>'
     + '<% }) %><% }) %></select></p><% } %>'
-    + '<div class="Rk-Editor-p"><span class="Rk-Editor-Label"><%-translate("Edge color:")%></span><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%-edge.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
-    + '<% _(Rkns.pickerColors).each(function(c) { %><li data-color="<%=c%>" style="background: <%=c%>"></li><% }); %></ul><span class="Rk-Edit-ColorPicker-Text"><%- translate("Choose color") %></span></div></div>'
-    + '<p><span class="Rk-Edit-Direction"><%- translate("Change edge direction") %></span></p>'
-    + '<p><span class="Rk-Editor-Label"><%-translate("From:")%></span><span class="Rk-UserColor" style="background:<%-edge.from_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.from_title, 25) %></p>'
-    + '<p><span class="Rk-Editor-Label"><%-translate("To:")%></span><span class="Rk-UserColor" style="background:<%-edge.to_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.to_title, 25) %></p>'
-    + '<% if (edge.has_creator) { %><p><span class="Rk-Editor-Label"><%-translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-edge.created_by_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.created_by_title, 25) %></p><% } %>'
+    + '<div class="Rk-Editor-p"><span class="Rk-Editor-Label"><%-renkan.translate("Edge color:")%></span><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%-edge.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
+    + '<% _(Rkns.pickerColors).each(function(c) { %><li data-color="<%=c%>" style="background: <%=c%>"></li><% }); %></ul><span class="Rk-Edit-ColorPicker-Text"><%- renkan.translate("Choose color") %></span></div></div>'
+    + '<p><span class="Rk-Edit-Direction"><%- renkan.translate("Change edge direction") %></span></p>'
+    + '<p><span class="Rk-Editor-Label"><%-renkan.translate("From:")%></span><span class="Rk-UserColor" style="background:<%-edge.from_color%>;"></span><%- Rkns.Renderer.shortenText(edge.from_title, 25) %></p>'
+    + '<p><span class="Rk-Editor-Label"><%-renkan.translate("To:")%></span><span class="Rk-UserColor" style="background:<%-edge.to_color%>;"></span><%- Rkns.Renderer.shortenText(edge.to_title, 25) %></p>'
+    + '<% if (edge.has_creator) { %><p><span class="Rk-Editor-Label"><%-renkan.translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-edge.created_by_color%>;"></span><%- Rkns.Renderer.shortenText(edge.created_by_title, 25) %></p><% } %>'
 );
 
 Rkns.Renderer.EdgeEditor.prototype.readOnlyTemplate = Rkns._.template(
@@ -993,9 +1034,9 @@
     + '<span class="Rk-Display-Title"><% if (edge.uri) { %><a href="<%-edge.uri%>" target="_blank"><% } %><%-edge.title%><% if (edge.uri) { %></a><% } %></span></h2>'
     + '<% if (edge.uri) { %><p class="Rk-Display-URI"><a href="<%-edge.uri%>" target="_blank"><%-edge.short_uri%></a></p><% } %>'
     + '<p><%-edge.description%></p>'
-    + '<p><span class="Rk-Editor-Label"><%-translate("From:")%></span><span class="Rk-UserColor" style="background:<%-edge.from_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.from_title, 25) %></p>'
-    + '<p><span class="Rk-Editor-Label"><%-translate("To:")%></span><span class="Rk-UserColor" style="background:<%-edge.to_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.to_title, 25) %></p>'
-    + '<% if (edge.has_creator) { %><p><span class="Rk-Editor-Label"><%-translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-edge.created_by_color%>;"></span><%- Rkns.Renderer.Utils.shortenText(edge.created_by_title, 25) %></p><% } %>'
+    + '<p><span class="Rk-Editor-Label"><%-renkan.translate("From:")%></span><span class="Rk-UserColor" style="background:<%-edge.from_color%>;"></span><%- Rkns.Renderer.shortenText(edge.from_title, 25) %></p>'
+    + '<p><span class="Rk-Editor-Label"><%-renkan.translate("To:")%></span><span class="Rk-UserColor" style="background:<%-edge.to_color%>;"></span><%- Rkns.Renderer.shortenText(edge.to_title, 25) %></p>'
+    + '<% if (edge.has_creator) { %><p><span class="Rk-Editor-Label"><%-renkan.translate("Created by:")%></span><span class="Rk-UserColor" style="background:<%-edge.created_by_color%>;"></span><%- Rkns.Renderer.shortenText(edge.created_by_title, 25) %></p><% } %>'
 );
 
 Rkns.Renderer.EdgeEditor.prototype.draw = function() {
@@ -1007,10 +1048,10 @@
     this.editor_$
         .html(_template({
             edge: {
-            	has_creator: !!_model.get("created_by"),
+                has_creator: !!_model.get("created_by"),
                 title: _model.get("title"),
                 uri: _model.get("uri"),
-                short_uri:  Rkns.Renderer.Utils.shortenText((_model.get("uri") || "").replace(/^(https?:\/\/)?(www\.)?/,'').replace(/\/$/,''),40),
+                short_uri:  Rkns.Renderer.shortenText((_model.get("uri") || "").replace(/^(https?:\/\/)?(www\.)?/,'').replace(/\/$/,''),40),
                 description: _model.get("description"),
                 color: _model.get("color") || _created_by.get("color"),
                 from_title: _from_model.get("title"),
@@ -1020,107 +1061,127 @@
                 created_by_color: _created_by.get("color"),
                 created_by_title: _created_by.get("title")
             },
-            translate: this.renkan.translate,
+            renkan: this.renkan,
             properties: this.options.properties
         }));
     this.redraw();
     var _this = this,
-    	closeEditor = function() {
-	        _this.renderer.removeRepresentation(_this);
-	        paper.view.draw();
-    	}
+        closeEditor = function() {
+            _this.renderer.removeRepresentation(_this);
+            paper.view.draw();
+        }
     this.editor_$.find(".Rk-CloseX").click(closeEditor);
     
     if (this.renderer.isEditable()) {
-    	
-    	var onFieldChange = Rkns._(function() {
-    		Rkns._(function() {
-    			if (_this.renderer.isEditable()) {
-	    			_this.editor_$.find(".Rk-Edit-Goto").attr("href",_this.editor_$.find(".Rk-Edit-URI").val());
-		            var _data = {
-		                title: _this.editor_$.find(".Rk-Edit-Title").val(),
-		                uri: _this.editor_$.find(".Rk-Edit-URI").val()
-		            }
-		            _model.set(_data);
-		            paper.view.draw();
-	           	} else {
-	           		closeEditor();
-	           	}
-    		}).defer();
-    	}).throttle(500);
-    	
-        this.editor_$.find("input").bind("keyup change paste", onFieldChange);
+        
+        var onFieldChange = Rkns._(function() {
+            Rkns._(function() {
+                if (_this.renderer.isEditable()) {
+                    _this.editor_$.find(".Rk-Edit-Goto").attr("href",_this.editor_$.find(".Rk-Edit-URI").val());
+                    var _data = {
+                        title: _this.editor_$.find(".Rk-Edit-Title").val(),
+                        uri: _this.editor_$.find(".Rk-Edit-URI").val()
+                    }
+                    _model.set(_data);
+                    paper.view.draw();
+                } else {
+                    closeEditor();
+                }
+            }).defer();
+        }).throttle(500);
+        
+        this.editor_$.on("keyup", function(_e) {
+            if (_e.keyCode === 27) {
+                closeEditor();
+            }
+        });
+        
+        this.editor_$.find("input").on("keyup change paste", onFieldChange);
+        
         this.editor_$.find(".Rk-Edit-Vocabulary").change(function() {
-        	var e = $(this),
-        		v = e.val();
-        	if (v) {
-        		_this.editor_$.find(".Rk-Edit-Title").val(e.find(":selected").text());
-        		_this.editor_$.find(".Rk-Edit-URI").val(v);
-        		onFieldChange();
-        	}
+            var e = $(this),
+                v = e.val();
+            if (v) {
+                _this.editor_$.find(".Rk-Edit-Title").val(e.find(":selected").text());
+                _this.editor_$.find(".Rk-Edit-URI").val(v);
+                onFieldChange();
+            }
         });
         this.editor_$.find(".Rk-Edit-Direction").click(function() {
-			if (_this.renderer.isEditable()) {
-	        	_model.set({
-	        		from: _model.get("to"),
-	        		to: _model.get("from")
-	        	});
-	        	_this.draw();
-	       	} else {
-	       		closeEditor();
-	       	}
+            if (_this.renderer.isEditable()) {
+                _model.set({
+                    from: _model.get("to"),
+                    to: _model.get("from")
+                });
+                _this.draw();
+            } else {
+                closeEditor();
+            }
         });
+        
+        var _picker = _this.editor_$.find(".Rk-Edit-ColorPicker");
+        
         this.editor_$.find(".Rk-Edit-ColorPicker-Wrapper").hover(
-            function() { _this.editor_$.find(".Rk-Edit-ColorPicker").show(); },
-            function() { _this.editor_$.find(".Rk-Edit-ColorPicker").hide(); }
+            function(_e) {
+                _e.preventDefault();
+                _picker.show();
+            },
+            function(_e) {
+                _e.preventDefault();
+                _picker.hide();
+            }
         );
-        this.editor_$.find(".Rk-Edit-ColorPicker li").hover(
-            function() { _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color")); },
-            function() { _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(this.renkan)).get("color")); }
-        ).click(function() {
-			if (_this.renderer.isEditable()) {
-            	_model.set("color", $(this).attr("data-color"));
-            	paper.view.draw();
+        
+        _picker.find("li").hover(
+            function(_e) {
+                _e.preventDefault();
+                _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color"));
+            },
+            function(_e) {
+                _e.preventDefault();
+                _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER(_this.renkan)).get("color"))
+            }
+        ).click(function(_e) {
+            _e.preventDefault();
+            if (_this.renderer.isEditable()) {
+                _model.set("color", $(this).attr("data-color"));
+                _picker.hide();
+                paper.view.draw();
             } else {
-	       		closeEditor();
-	       	}
+                closeEditor();
+            }
         });
     }
 }
 
 Rkns.Renderer.EdgeEditor.prototype.redraw = function() {
     var _coords = this.source_representation.paper_coords;
-    Rkns.Renderer.Utils.drawEditBox(this.options, _coords, this.editor_block, 5, this.editor_$);
+    Rkns.Renderer.drawEditBox(this.options, _coords, this.editor_block, 5, this.editor_$);
     this.editor_$.show();
     paper.view.draw();
 }
 
-Rkns.Renderer.EdgeEditor.prototype.destroy = function() {
-    this.editor_block.remove();
-    this.editor_$.detach();
-}
-
 /* */
 
 Rkns.Renderer._NodeButton = Rkns.Utils.inherit(Rkns.Renderer._BaseButton);
 
 Rkns.Renderer._NodeButton.prototype.setSectorSize = function() {
-	var sectorInner = this.source_representation.circle_radius;
-	if (sectorInner !== this.lastSectorInner) {
-		if (this.sector) {
-			this.sector.destroy();
-		}
-		this.sector = Rkns.Renderer.Utils.sector(
-			this, 1 + sectorInner,
-			Rkns.Renderer._NODE_BUTTON_WIDTH + sectorInner,
-			this.startAngle,
-			this.endAngle,
-			1,
-			this.options.static_url + this.imageFile,
-			this.renkan.translate(this.text)
-		);
-		this.lastSectorInner = sectorInner;
-	}
+    var sectorInner = this.source_representation.circle_radius;
+    if (sectorInner !== this.lastSectorInner) {
+        if (this.sector) {
+            this.sector.destroy();
+        }
+        this.sector = this.renderer.drawSector(
+            this, 1 + sectorInner,
+            Rkns.Renderer._NODE_BUTTON_WIDTH + sectorInner,
+            this.startAngle,
+            this.endAngle,
+            1,
+            this.imageName,
+            this.renkan.translate(this.text)
+        );
+        this.lastSectorInner = sectorInner;
+    }
 }
 
 /* */
@@ -1130,9 +1191,9 @@
 Rkns.Renderer.NodeEditButton.prototype._init = function() {
     this.type = "Node-edit-button";
     this.lastSectorInner = 0;
-    this.startAngle = -225;
-    this.endAngle = -135;
-    this.imageFile = 'img/edit.png';
+    this.startAngle = -135;
+    this.endAngle = -45;
+    this.imageName = "edit";
     this.text = "Edit";
 }
 
@@ -1149,16 +1210,44 @@
 Rkns.Renderer.NodeRemoveButton.prototype._init = function() {
     this.type = "Node-remove-button";
     this.lastSectorInner = 0;
-    this.startAngle = -45;
-    this.endAngle = 45;
-    this.imageFile = 'img/remove.png';
+    this.startAngle = 0;
+    this.endAngle = 90;
+    this.imageName = "remove";
     this.text = "Remove";
 }
 
 Rkns.Renderer.NodeRemoveButton.prototype.mouseup = function() {
+    this.renderer.click_target = null;
+    this.renderer.is_dragging = false;
     this.renderer.removeRepresentationsOfType("editor");
-    if (this.renderer.isEditable() && confirm(this.renkan.translate('Do you really wish to remove node ') + '"' + this.source_representation.model.get("title") + '"?')) {
-        this.project.removeNode(this.source_representation.model);
+    if (this.renderer.isEditable()) {
+        var delid = Rkns.Utils.getUID("delete");
+        this.renderer.delete_list.push({
+            id: delid,
+            time: new Date().valueOf() + this.options.element_delete_delay
+        });
+        this.source_representation.model.set("delete_scheduled", delid);
+    }
+}
+
+/* */
+
+Rkns.Renderer.NodeRevertButton = Rkns.Utils.inherit(Rkns.Renderer._NodeButton);
+
+Rkns.Renderer.NodeRevertButton.prototype._init = function() {
+    this.type = "Node-revert-button";
+    this.lastSectorInner = 0;
+    this.startAngle = -135;
+    this.endAngle = 135;
+    this.imageName = "revert";
+    this.text = "Cancel deletion";
+}
+
+Rkns.Renderer.NodeRevertButton.prototype.mouseup = function() {
+    this.renderer.click_target = null;
+    this.renderer.is_dragging = false;
+    if (this.renderer.isEditable()) {
+        this.source_representation.model.unset("delete_scheduled");
     }
 }
 
@@ -1169,12 +1258,25 @@
 Rkns.Renderer.NodeLinkButton.prototype._init = function() {
     this.type = "Node-link-button";
     this.lastSectorInner = 0;
-    this.startAngle = -135;
-    this.endAngle = -45;
-    this.imageFile = 'img/link.png';
+    this.startAngle = 90;
+    this.endAngle = 180;
+    this.imageName = "link";
     this.text = "Link to another node";
 }
 
+Rkns.Renderer.NodeLinkButton.prototype.mousedown = function(_event, _isTouch) {
+    if (this.renderer.isEditable()) {
+        var _off = this.renderer.canvas_$.offset(),
+            _point = new paper.Point([
+                _event.pageX - _off.left,
+                _event.pageY - _off.top
+            ]);
+        this.renderer.click_target = null;
+        this.renderer.removeRepresentationsOfType("editor");
+        this.renderer.addTempEdge(this.source_representation, _point);
+    }
+}
+
 /* */
 
 Rkns.Renderer.NodeEnlargeButton = Rkns.Utils.inherit(Rkns.Renderer._NodeButton);
@@ -1182,18 +1284,18 @@
 Rkns.Renderer.NodeEnlargeButton.prototype._init = function() {
     this.type = "Node-enlarge-button";
     this.lastSectorInner = 0;
-    this.startAngle = 45;
-    this.endAngle = 90;
-    this.imageFile = 'img/enlarge.png';
+    this.startAngle = -45;
+    this.endAngle = 0;
+    this.imageName = "enlarge";
     this.text = "Enlarge";
 }
 
 Rkns.Renderer.NodeEnlargeButton.prototype.mouseup = function() {
-	var _newsize = 1 + (this.source_representation.model.get("size") || 0);
-	this.source_representation.model.set("size", _newsize);
-	this.source_representation.select();
-	this.select();
-	paper.view.draw();
+    var _newsize = 1 + (this.source_representation.model.get("size") || 0);
+    this.source_representation.model.set("size", _newsize);
+    this.source_representation.select();
+    this.select();
+    paper.view.draw();
 }
 
 /* */
@@ -1203,18 +1305,18 @@
 Rkns.Renderer.NodeShrinkButton.prototype._init = function() {
     this.type = "Node-shrink-button";
     this.lastSectorInner = 0;
-    this.startAngle = 90;
-    this.endAngle = 135;
-    this.imageFile = 'img/shrink.png';
+    this.startAngle = -180;
+    this.endAngle = -135;
+    this.imageName = "shrink";
     this.text = "Shrink";
 }
 
 Rkns.Renderer.NodeShrinkButton.prototype.mouseup = function() {
-	var _newsize = -1 + (this.source_representation.model.get("size") || 0);
-	this.source_representation.model.set("size", _newsize);
-	this.source_representation.select();
-	this.select();
-	paper.view.draw();
+    var _newsize = -1 + (this.source_representation.model.get("size") || 0);
+    this.source_representation.model.set("size", _newsize);
+    this.source_representation.select();
+    this.select();
+    paper.view.draw();
 }
 
 /* */
@@ -1223,7 +1325,7 @@
 
 Rkns.Renderer.EdgeEditButton.prototype._init = function() {
     this.type = "Edge-edit-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, - 90, 90, 1, this.options.static_url+'img/edit.png', this.renkan.translate("Edit"));
+    this.sector = this.renderer.drawSector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, -270, -90, 1, "edit", this.renkan.translate("Edit"));
 }
 
 Rkns.Renderer.EdgeEditButton.prototype.mouseup = function() {
@@ -1238,13 +1340,37 @@
 
 Rkns.Renderer.EdgeRemoveButton.prototype._init = function() {
     this.type = "Edge-remove-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, - 270, -90, 1, this.options.static_url+'img/remove.png', this.renkan.translate("Remove"));
+    this.sector = this.renderer.drawSector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, -90, 90, 1, "remove", this.renkan.translate("Remove"));
 }
 
 Rkns.Renderer.EdgeRemoveButton.prototype.mouseup = function() {
+    this.renderer.click_target = null;
+    this.renderer.is_dragging = false;
     this.renderer.removeRepresentationsOfType("editor");
-    if (this.renderer.isEditable() && confirm(this.renkan.translate('Do you really wish to remove edge ') + '"' + this.source_representation.model.get("title") + '"?')) {
-        this.project.removeEdge(this.source_representation.model);
+    if (this.renderer.isEditable()) {
+        var delid = Rkns.Utils.getUID("delete");
+        this.renderer.delete_list.push({
+            id: delid,
+            time: new Date().valueOf() + this.options.element_delete_delay
+        });
+        this.source_representation.model.set("delete_scheduled", delid);
+    }
+}
+
+/* */
+
+Rkns.Renderer.EdgeRevertButton = Rkns.Utils.inherit(Rkns.Renderer._BaseButton);
+
+Rkns.Renderer.EdgeRevertButton.prototype._init = function() {
+    this.type = "Edge-revert-button";
+    this.sector = this.renderer.drawSector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, -135, 135, 1, "revert", this.renkan.translate("Cancel deletion"));
+}
+
+Rkns.Renderer.EdgeRevertButton.prototype.mouseup = function() {
+    this.renderer.click_target = null;
+    this.renderer.is_dragging = false;
+    if (this.renderer.isEditable()) {
+        this.source_representation.model.unset("delete_scheduled");
     }
 }
 
@@ -1253,12 +1379,12 @@
 Rkns.Renderer.MiniFrame = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
 
 Rkns.Renderer.MiniFrame.prototype.paperShift = function(_delta) {
-	this.renderer.offset = this.renderer.offset.subtract(_delta.divide(this.renderer.minimap.scale).multiply(this.renderer.scale));
+    this.renderer.offset = this.renderer.offset.subtract(_delta.divide(this.renderer.minimap.scale).multiply(this.renderer.scale));
     this.renderer.redraw();
 }
 
 Rkns.Renderer.MiniFrame.prototype.mouseup = function(_delta) {
-	this.renderer.click_target = null;
+    this.renderer.click_target = null;
     this.renderer.is_dragging = false;
 }
 
@@ -1271,235 +1397,224 @@
     this.$.html(this.template(_renkan));
     this.onStatusChange();
     this.canvas_$ = this.$.find(".Rk-Canvas");
+    this.labels_$ = this.$.find(".Rk-Labels");
     this.editor_$ = this.$.find(".Rk-Editor");
     this.notif_$ = this.$.find(".Rk-Notifications");
     paper.setup(this.canvas_$[0]);
     this.scale = 1;
     this.offset = paper.view.center;
     this.totalScroll = 0;
+    this.mouse_down = false;
     this.click_target = null;
     this.selected_target = null;
     this.edge_layer = new paper.Layer();
     this.node_layer = new paper.Layer();
     this.buttons_layer = new paper.Layer();
+    this.delete_list = [];
     
     if (_renkan.options.show_minimap) {
-	    this.minimap = {
-	    	background_layer: new paper.Layer(),
-	    	edge_layer: new paper.Layer(),
-	    	node_layer: new paper.Layer(),
-	    	node_group: new paper.Group(),
-	    	size: new paper.Size( _renkan.options.minimap_width, _renkan.options.minimap_height )
-	    }
-	    
-	    this.minimap.background_layer.activate();
-	    this.minimap.topleft = paper.view.bounds.bottomRight.subtract(this.minimap.size);
-	    this.minimap.rectangle = new paper.Path.Rectangle(this.minimap.topleft.subtract([2,2]), this.minimap.size.add([4,4]));
-	    this.minimap.rectangle.fillColor = _renkan.options.minimap_background_color;
-	    this.minimap.rectangle.strokeColor = _renkan.options.minimap_border_color;
-	    this.minimap.rectangle.strokeWidth = 4;
-	    this.minimap.offset = new paper.Point(this.minimap.size.divide(2));
-	    this.minimap.scale = .1;
-	    
-	    this.minimap.node_layer.activate();
-	    this.minimap.cliprectangle = new paper.Path.Rectangle(this.minimap.topleft, this.minimap.size);
-	    this.minimap.node_group.addChild(this.minimap.cliprectangle);
-	    this.minimap.node_group.clipped = true;
-	    this.minimap.miniframe = new paper.Path.Rectangle(this.minimap.topleft, this.minimap.size);
-	    this.minimap.node_group.addChild(this.minimap.miniframe);
-	    this.minimap.miniframe.fillColor = '#c0c0ff';
-	    this.minimap.miniframe.opacity = .3;
-	    this.minimap.miniframe.strokeColor = '#000080';
-	    this.minimap.miniframe.strokeWidth = 3;
-	    this.minimap.miniframe.__representation = new Rkns.Renderer.MiniFrame(this, null);
+        this.minimap = {
+            background_layer: new paper.Layer(),
+            edge_layer: new paper.Layer(),
+            node_layer: new paper.Layer(),
+            node_group: new paper.Group(),
+            size: new paper.Size( _renkan.options.minimap_width, _renkan.options.minimap_height )
+        }
+        
+        this.minimap.background_layer.activate();
+        this.minimap.topleft = paper.view.bounds.bottomRight.subtract(this.minimap.size);
+        this.minimap.rectangle = new paper.Path.Rectangle(this.minimap.topleft.subtract([2,2]), this.minimap.size.add([4,4]));
+        this.minimap.rectangle.fillColor = _renkan.options.minimap_background_color;
+        this.minimap.rectangle.strokeColor = _renkan.options.minimap_border_color;
+        this.minimap.rectangle.strokeWidth = 4;
+        this.minimap.offset = new paper.Point(this.minimap.size.divide(2));
+        this.minimap.scale = .1;
+        
+        this.minimap.node_layer.activate();
+        this.minimap.cliprectangle = new paper.Path.Rectangle(this.minimap.topleft, this.minimap.size);
+        this.minimap.node_group.addChild(this.minimap.cliprectangle);
+        this.minimap.node_group.clipped = true;
+        this.minimap.miniframe = new paper.Path.Rectangle(this.minimap.topleft, this.minimap.size);
+        this.minimap.node_group.addChild(this.minimap.miniframe);
+        this.minimap.miniframe.fillColor = '#c0c0ff';
+        this.minimap.miniframe.opacity = .3;
+        this.minimap.miniframe.strokeColor = '#000080';
+        this.minimap.miniframe.strokeWidth = 3;
+        this.minimap.miniframe.__representation = new Rkns.Renderer.MiniFrame(this, null);
     }
     
+    this.throttledPaperDraw = Rkns._(function() {
+        paper.view.draw();
+    }).throttle(100);
+    
     this.bundles = [];
     this.click_mode = false;
-    var _tool = new paper.Tool(),
-        _this = this,
-        _allowScroll = true;
+    
+    var _this = this,
+        _allowScroll = true,
+        _originalScale,
+        _zooming = false,
+        _lastTapDate,
+        _lastTapX,
+        _lastTapY;
+    
+    this.imageCache = {};
+    
+    ['edit', 'remove', 'link', 'enlarge', 'shrink', 'revert' ].forEach(function(imgname) {
+        var img = new Image();
+        img.src = _renkan.options.static_url + 'img/' + imgname + '.png';
+        _this.imageCache[imgname] = img;
+    });
+    
+    var throttledMouseMove = _.throttle(function(_event, _isTouch) {
+        _this.onMouseMove(_event, _isTouch);
+    }, Rkns.Renderer._MOUSEMOVE_RATE);
     
-    _tool.minDistance = Rkns.Renderer._MIN_DRAG_DISTANCE;
-    _tool.onMouseMove = function(_event) {
-        _this.onMouseMove(_event);
-    }
-    _tool.onMouseDown = function(_event) {
-        _this.onMouseDown(_event);
-    }
-    _tool.onMouseDrag = function(_event) {
-        _this.onMouseDrag(_event);
-    }
-    this.canvas_$.mouseup(function(_event) {
-        _this.onMouseUp(_event);
-    });
-    this.canvas_$.mousewheel(function(_event, _delta) {
-        if (_allowScroll) {
-        	_this.onScroll(_event, _delta);
+    this.canvas_$.on({
+        mousedown: function(_event) {
+            _event.preventDefault();
+            _this.onMouseDown(_event, false);
+        },
+        mousemove: function(_event) {
+            _event.preventDefault();
+            throttledMouseMove(_event, false);
+        },
+        mouseup: function(_event) {
+            _event.preventDefault();
+            _this.onMouseUp(_event, false);
+        },
+        mousewheel: function(_event, _delta) {
+            _event.preventDefault();
+            if (_allowScroll) {
+                _this.onScroll(_event, _delta);
+            }
+        },
+        touchstart: function(_event) {
+            _event.preventDefault();
+            var _touches = _event.originalEvent.touches[0];
+            if (
+                _renkan.options.allow_double_click
+                && new Date() - _lastTap < Rkns.Renderer._DOUBLETAP_DELAY
+                && ( Math.pow(_lastTapX - _touches.pageX, 2) + Math.pow(_lastTapY - _touches.pageY, 2) < Rkns.Renderer._DOUBLETAP_DISTANCE )
+            ) {
+                _lastTap = 0;
+                _this.onDoubleClick(_touches);
+            } else {
+                _lastTap = new Date();
+                _lastTapX = _touches.pageX;
+                _lastTapY = _touches.pageY;
+                _originalScale = _this.scale;
+                _zooming = false;
+                _this.onMouseDown(_touches, true);
+            }
+        },
+        touchmove: function(_event) {
+            _event.preventDefault();
+            _lastTap = 0;
+            if (_event.originalEvent.touches.length == 1) {
+                _this.onMouseMove(_event.originalEvent.touches[0], true);
+            } else {
+                if (!_zooming) {
+                    _this.onMouseUp(_event.originalEvent.touches[0], true);
+                    _this.click_target = null;
+                    _this.is_dragging = false;
+                    _zooming = true;
+                }
+                if (_event.originalEvent.scale === "undefined") {
+                    return;
+                }
+                var _newScale = _event.originalEvent.scale * _originalScale,
+                    _scaleRatio = _newScale / _this.scale,
+                    _newOffset = new paper.Point([
+                        _this.canvas_$.width(),
+                        _this.canvas_$.height()
+                    ]).multiply( .5 * ( 1 - _scaleRatio ) ).add(_this.offset.multiply( _scaleRatio ));
+                _this.setScale(_newScale, _this.offset);
+            }
+        },
+        touchend: function(_event) {
+            _event.preventDefault();
+            _this.onMouseUp(_event.originalEvent.changedTouches[0], true);
+        },
+        dblclick: function(_event) {
+            _event.preventDefault();
+            if (_renkan.options.allow_double_click) {
+                _this.onDoubleClick(_event);
+            }
+        },
+        mouseleave: function(_event) {
+            _event.preventDefault();
+            _this.onMouseUp(_event, false);
+            _this.click_target = null;
+            _this.is_dragging = false;
+        },
+        dragover: function(_event) {
+            _event.preventDefault();
+        },
+        dragenter: function(_event) {
+            _event.preventDefault();
+            _allowScroll = false;
+        },
+        dragleave: function(_event) {
+            _event.preventDefault();
+            _allowScroll = true;
+        },
+        drop: function(_event) {
+            _event.preventDefault();
+            _allowScroll = true;
+            var res = {};
+            Rkns._(_event.originalEvent.dataTransfer.types).each(function(t) {
+                try {
+                    res[t] = _event.originalEvent.dataTransfer.getData(t);
+                } catch(e) {}
+            });
+            var text = _event.originalEvent.dataTransfer.getData("Text");
+            if (typeof text === "string") {
+                switch(text[0]) {
+                    case "{":
+                    case "[":
+                        try {
+                            var data = JSON.parse(text);
+                            _(res).extend(data);
+                        }
+                        catch(e) {
+                            if (!res["text/plain"]) {
+                                res["text/plain"] = text;
+                            }
+                        }
+                    break;
+                    case "<":
+                        if (!res["text/html"]) {
+                            res["text/html"] = text;
+                        }
+                    break;
+                    default:
+                        if (!res["text/plain"]) {
+                            res["text/plain"] = text;
+                        }
+                }
+            }
+            var url = _event.originalEvent.dataTransfer.getData("URL");
+            if (url && !res["text/uri-list"]) {
+                res["text/uri-list"] = url;
+            }
+            _this.dropData(res, _event.originalEvent);
         }
     });
-    this.canvas_$.dblclick(function(_event) {
-        _this.onDoubleClick(_event);
-    });
-    this.canvas_$.on("dragover", function(_event) {
-    	_event.stopPropagation();
-    	_event.preventDefault();
-    });
-    this.canvas_$.on("dragenter", function(_event) {
-    	_allowScroll = false;
-    	_event.stopPropagation();
-    	_event.preventDefault();
-    });
-    this.canvas_$.on("dragleave", function(_event) {
-    	_allowScroll = true;
-    	_event.stopPropagation();
-    	_event.preventDefault();
-    });
-    this.canvas_$.on("drop", function(_event) {
-    	_event.stopPropagation();
-    	_event.preventDefault();
-    	_allowScroll = true;
-    	if (!_this.isEditable()) {
-    		return;
-    	}
-    	var res = {};
-    	Rkns._(_event.originalEvent.dataTransfer.types).each(function(t) {
-    		try {
-    			res[t] = _event.originalEvent.dataTransfer.getData(t);
-    		} catch(e) {}
-    	});
-		var text = _event.originalEvent.dataTransfer.getData("Text");
-		if (typeof text === "string") {
-			switch(text[0]) {
-    			case "{":
-    			case "[":
-    				try {
-    					var data = JSON.parse(text);
-    					_(res).extend(data);
-    				}
-    				catch(e) {
-    					if (!res["text/plain"]) {
-    						res["text/plain"] = text;
-    					}
-    				}
-				break;
-				case "<":
-					if (!res["text/html"]) {
-						res["text/html"] = text;
-					}
-				break;
-				default:
-					if (!res["text/plain"]) {
-						res["text/plain"] = text;
-					}
-    		}
-		}
-		var url = _event.originalEvent.dataTransfer.getData("URL");
-		if (url && !res["text/uri-list"]) {
-			res["text/uri-list"] = url;
-		}
-		if (res["text/json"] || res["application/json"]) {
-			try {
-				var data = JSON.parse(res["text/json"] || res["application/json"]);
-				_(res).extend(data);
-			}
-			catch(e) {}
-		}
-    	var newNode = {};
-    	switch(res["text/x-iri-specific-site"]) {
-    		case "twitter":
-    			var snippet = Rkns.$('<div>').html(res["text/x-iri-selected-html"]),
-    				tweetdiv = snippet.find(".tweet")
-    			newNode.title = _renkan.translate("Tweet by ") + tweetdiv.attr("data-name");
-    			newNode.uri = "http://twitter.com/" + tweetdiv.attr("data-screen-name") + "/status/" + tweetdiv.attr("data-tweet-id");
-    			newNode.image = tweetdiv.find(".avatar").attr("src");
-    			newNode.description = tweetdiv.find(".js-tweet-text:first").text();
-    		break;
-    		case "google":
-    			var snippet = Rkns.$('<div>').html(res["text/x-iri-selected-html"]);
-    			newNode.title = snippet.find("h3:first").text().trim();
-    			newNode.uri = snippet.find("h3 a").attr("href");
-    			newNode.description = snippet.find(".st:first").text().trim();
-    		break;
-    		case undefined:
-	    	default:
-		    	if (res["text/x-iri-source-uri"]) {
-		    		newNode.uri = res["text/x-iri-source-uri"];
-		    	}
-		    	if (res["text/plain"] || res["text/x-iri-selected-text"]) {
-		    		newNode.description = (res["text/plain"] || res["text/x-iri-selected-text"]).replace(/[\s\n]+/gm,' ').trim();
-		    	}
-		    	if (res["text/html"] || res["text/x-iri-selected-html"]) {
-		    		var snippet = Rkns.$('<div>').html(res["text/html"] || res["text/x-iri-selected-html"]);
-		    		newNode.image = snippet.find("img").attr("src") || '';
-		    		newNode.uri = snippet.find("a").attr("href") || newNode.uri;
-		    		newNode.title = snippet.find("[title]").attr("title");
-		    		newNode.description = snippet.text().replace(/[\s\n]+/gm,' ').trim();
-		    	}
-		    	if (res["text/uri-list"]) {
-		    		newNode.uri = res["text/uri-list"];
-		    	}
-		    	if (res["text/x-moz-url"] && !newNode.title) {
-		    		newNode.title = (res["text/x-moz-url"].split("\n")[1] || "").trim();
-		    		if (newNode.title === newNode.uri) {
-		    			newNode.title = false;
-		    		}
-		    	}
-		    	if (res["text/x-iri-source-title"] && !newNode.title) {
-		    		newNode.title = res["text/x-iri-source-title"];
-		    	}
-		    	if (res["text/html"] || res["text/x-iri-selected-html"]) {
-		    		newNode.image = snippet.find("[data-image]").attr("data-image") || newNode.image;
-		    		newNode.uri = snippet.find("[data-uri]").attr("data-uri") || newNode.uri;
-		    		newNode.title = snippet.find("[data-title]").attr("data-title") || newNode.title;
-		    		newNode.description = snippet.find("[data-description]").attr("data-description") || newNode.description;
-		    	}
-    	}
-    	var fields = ["title", "description", "uri", "image"];
-    	for (var i = 0; i < fields.length; i++) {
-    		var f = fields[i];
-    		if (res["text/x-iri-" + f] || res[f]) {
-    			newNode[f] = res["text/x-iri-" + f] || res[f];
-    		}
-    	}
-    	if (newNode.title || newNode.description || newNode.uri) {
-    		var _off = _this.canvas_$.offset(),
-            _point = new paper.Point([
-                _event.originalEvent.pageX - _off.left,
-                _event.originalEvent.pageY - _off.top
-            ]),
-            _coords = _this.toModelCoords(_point),
-            _data = {
-                id: Rkns.Utils.getUID('node'),
-                created_by: _this.renkan.current_user,
-                uri: newNode.uri || "",
-                title: newNode.title || _this.renkan.translate("Dragged resource"),
-                description: newNode.description || "",
-                image: newNode.image || "",
-                color: newNode.color || undefined,
-                position: {
-                    x: _coords.x,
-                    y: _coords.y
-                }
-            };
-        	var _node = _this.renkan.project.addNode(_data);
-            _this.getRepresentationByModel(_node).openEditor();
-    	}
-    })
     this.editor_$.find(".Rk-ZoomOut").click(function() {
-    	var _newScale = _this.scale * Math.SQRT1_2,
-    		_offset = new paper.Point([
-	            _this.canvas_$.width(),
-	            _this.canvas_$.height()
-	        ]).multiply( .5 * ( 1 - Math.SQRT1_2 ) ).add(_this.offset.multiply( Math.SQRT1_2 ));
+        var _newScale = _this.scale * Math.SQRT1_2,
+            _offset = new paper.Point([
+                _this.canvas_$.width(),
+                _this.canvas_$.height()
+            ]).multiply( .5 * ( 1 - Math.SQRT1_2 ) ).add(_this.offset.multiply( Math.SQRT1_2 ));
         _this.setScale( _newScale, _offset );
     });
     this.editor_$.find(".Rk-ZoomIn").click(function() {
-    	var _newScale = _this.scale * Math.SQRT2,
-    		_offset = new paper.Point([
-	            _this.canvas_$.width(),
-	            _this.canvas_$.height()
-	        ]).multiply( .5 * ( 1 - Math.SQRT2 ) ).add(_this.offset.multiply( Math.SQRT2 ));
+        var _newScale = _this.scale * Math.SQRT2,
+            _offset = new paper.Point([
+                _this.canvas_$.width(),
+                _this.canvas_$.height()
+            ]).multiply( .5 * ( 1 - Math.SQRT2 ) ).add(_this.offset.multiply( Math.SQRT2 ));
         _this.setScale( _newScale, _offset );
     });
     this.$.find(".Rk-CurrentUser").mouseenter(
@@ -1548,45 +1663,45 @@
         }
     });
     this.$.find(".Rk-Bookmarklet-Button")
-	    .attr("href","javascript:" + Rkns.Renderer._BOOKMARKLET_CODE(_renkan))
-		.click(function(){
-	    	_this.notif_$
-	    		.text(_renkan.translate("Drag this button to your bookmark bar. When on a third-party website, click it to enable drag-and-drop from the website to Renkan."))
-	    		.fadeIn()
-	    		.delay(5000)
-	    		.fadeOut();
-			return false;
-	    });
+        .attr("href","javascript:" + Rkns.Renderer._BOOKMARKLET_CODE(_renkan))
+        .click(function(){
+            _this.notif_$
+                .text(_renkan.translate("Drag this button to your bookmark bar. When on a third-party website, click it to enable drag-and-drop from the website to Renkan."))
+                .fadeIn()
+                .delay(5000)
+                .fadeOut();
+            return false;
+        });
     this.$.find(".Rk-TopBar-Button").mouseover(function() {
         Rkns.$(this).find(".Rk-TopBar-Tooltip").show();
     }).mouseout(function() {
         Rkns.$(this).find(".Rk-TopBar-Tooltip").hide();
     });
     this.$.find(".Rk-Fold-Bins").click(function() {
-    	var bins = _renkan.$.find(".Rk-Bins");
-    	if (bins.offset().left < 0) {
-    		bins.animate({left: 0},250);
-    		_this.$.animate({left: 300},250,function() {
-    			var w = _this.$.width();
-    			paper.view.viewSize = new paper.Size([w, _this.canvas_$.height()]);
-    		});
-    		$(this).html("&laquo;");
-    	} else {
-    		bins.animate({left: -300},250);
-    		_this.$.animate({left: 0},250,function() {
-    			var w = _this.$.width();
-    			paper.view.viewSize = new paper.Size([w, _this.canvas_$.height()]);
-    		});
-    		$(this).html("&raquo;");
-    	}
+        var bins = _renkan.$.find(".Rk-Bins");
+        if (bins.offset().left < 0) {
+            bins.animate({left: 0},250);
+            _this.$.animate({left: 300},250,function() {
+                var w = _this.$.width();
+                paper.view.viewSize = new paper.Size([w, _this.canvas_$.height()]);
+            });
+            $(this).html("&laquo;");
+        } else {
+            bins.animate({left: -300},250);
+            _this.$.animate({left: 0},250,function() {
+                var w = _this.$.width();
+                paper.view.viewSize = new paper.Size([w, _this.canvas_$.height()]);
+            });
+            $(this).html("&raquo;");
+        }
     });
     
     paper.view.onResize = function(_event) {
-    	_this.offset = _this.offset.add(_event.delta.divide(2));
-    	if (_this.minimap) {
-	        _this.minimap.topleft = paper.view.bounds.bottomRight.subtract(_this.minimap.size)
-	        _this.minimap.rectangle.fitBounds(_this.minimap.topleft.subtract([2,2]), _this.minimap.size.add([4,4]));
-	        _this.minimap.cliprectangle.fitBounds(_this.minimap.topleft, _this.minimap.size);
+        _this.offset = _this.offset.add(_event.delta.divide(2));
+        if (_this.minimap) {
+            _this.minimap.topleft = paper.view.bounds.bottomRight.subtract(_this.minimap.size)
+            _this.minimap.rectangle.fitBounds(_this.minimap.topleft.subtract([2,2]), _this.minimap.size.add([4,4]));
+            _this.minimap.cliprectangle.fitBounds(_this.minimap.topleft, _this.minimap.size);
         }
         _this.redraw();
     }
@@ -1621,7 +1736,7 @@
         _thRedraw();
     });
     this.renkan.project.on("change:title", function(_model, _title) {
-        var el = $(".Rk-PadTitle");
+        var el = _this.$.find(".Rk-PadTitle");
         if (el.is("input")) {
             if (el.val() !== _title) {
                 el.val(_title);
@@ -1631,13 +1746,53 @@
         }
     });
     
+    if (_renkan.options.size_bug_fix) {
+        var _delay = (
+            typeof _renkan.options.size_bug_fix === "number"
+            ? _renkan.options.size_bug_fix
+            : 500
+        );
+        window.setTimeout(
+            function() {
+                _this.fixSize(true);
+            },
+            _delay
+        );
+    }
+    
+    if (_renkan.options.force_resize) {
+        $(window).resize(function() {
+            _this.fixSize(false);
+        });
+    }
+    
     this.redraw();
     
+    window.setInterval(function() {
+        var _now = new Date().valueOf();
+        _this.delete_list.forEach(function(d) {
+            if (_now >= d.time) {
+                var el = _renkan.project.get("nodes").findWhere({"delete_scheduled":d.id});
+                if (el) {
+                    project.removeNode(el);
+                }
+                el = _renkan.project.get("edges").findWhere({"delete_scheduled":d.id});
+                if (el) {
+                    project.removeEdge(el);
+                }
+            }
+        });
+        _this.delete_list = _this.delete_list.filter(function(d) {
+            return _renkan.project.get("nodes").findWhere({"delete_scheduled":d.id}) || _renkan.project.get("edges").findWhere({"delete_scheduled":d.id})
+        });
+    }, 500);
+    
     if (this.minimap) {
-	    window.setInterval(function() {
-	    	_this.rescaleMinimap()
-	    }, 2000);
+        window.setInterval(function() {
+            _this.rescaleMinimap()
+        }, 2000);
     }
+
 }
 
 Rkns.Renderer.Scene.prototype.template = Rkns._.template(
@@ -1651,14 +1806,137 @@
     + '<div class="Rk-TopBar-Separator"></div><div class="Rk-TopBar-Button Rk-Save-Button"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents"> </div></div></div>'
     + '<div class="Rk-TopBar-Separator"></div><a class="Rk-TopBar-Button Rk-Bookmarklet-Button" href="#"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents">'
     + '<%-translate("Renkan \'Drag-to-Add\' bookmarklet")%></div></div></a>'
-    + '<div class="Rk-TopBar-Separator"></div></div>'
-    + '<% } } %>'
-    + '<div class="Rk-Editing-Space<% if (!options.show_top_bar) { %> Rk-Editing-Space-Full<% } %>"><canvas class="Rk-Canvas" resize></canvas><div class="Rk-Editor"><div class="Rk-Notifications"></div>'
+    + '<div class="Rk-TopBar-Separator"></div>'
+    + '<% } %></div><% } %>'
+    + '<div class="Rk-Editing-Space<% if (!options.show_top_bar) { %> Rk-Editing-Space-Full<% } %>">'
+    + '<div class="Rk-Labels"></div><canvas class="Rk-Canvas" resize></canvas><div class="Rk-Editor"><div class="Rk-Notifications"></div>'
     + '<% if (options.show_bins) { %><div class="Rk-Fold-Bins">&laquo;</div><% } %>'
     + '<div class="Rk-ZoomButtons"><div class="Rk-ZoomIn" title="<%-translate("Zoom In")%>"></div><div class="Rk-ZoomOut" title="<%-translate("Zoom Out")%>"></div></div>'
     + '</div></div>'
 );
 
+Rkns.Renderer.Scene.prototype.fixSize = function(_autoscale) {
+    var w = this.$.width(),
+        h = this.$.height();
+    if (this.renkan.options.show_top_bar) {
+        h -= this.$.find(".Rk-TopBar").height();
+    }
+    this.canvas_$.attr({
+        width: w,
+        height: h
+    });
+    
+    paper.view.viewSize = new paper.Size([w, h]);
+    
+    if (_autoscale) {
+        this.autoScale();
+    }
+}
+
+Rkns.Renderer.Scene.prototype.drawSector = function(_repr, _inR, _outR, _startAngle, _endAngle, _padding, _imgname, _caption) {
+    var _options = this.renkan.options,
+        _startRads = _startAngle * Math.PI / 180,
+        _endRads = _endAngle * Math.PI / 180,
+        _img = this.imageCache[_imgname],
+        _span = _endRads - _startRads,
+        _startdx = - Math.sin(_startRads),
+        _startdy = Math.cos(_startRads),
+        _startXIn = Math.cos(_startRads) * _inR + _padding * _startdx,
+        _startYIn = Math.sin(_startRads) * _inR + _padding * _startdy,
+        _startXOut = Math.cos(_startRads) * _outR + _padding * _startdx,
+        _startYOut = Math.sin(_startRads) * _outR + _padding * _startdy,
+        _enddx = - Math.sin(_endRads),
+        _enddy = Math.cos(_endRads),
+        _endXIn = Math.cos(_endRads) * _inR - _padding * _enddx,
+        _endYIn = Math.sin(_endRads) * _inR - _padding * _enddy,
+        _endXOut = Math.cos(_endRads) * _outR - _padding * _enddx,
+        _endYOut = Math.sin(_endRads) * _outR - _padding * _enddy,
+        _centerR = (_inR + _outR)/2,
+        _centerRads = (_startRads + _endRads) / 2,
+        _centerX = Math.cos(_centerRads) * _centerR,
+        _centerY = Math.sin(_centerRads) * _centerR,
+        _centerXIn = Math.cos(_centerRads) * _inR,
+        _centerXOut = Math.cos(_centerRads) * _outR,
+        _centerYIn = Math.sin(_centerRads) * _inR,
+        _centerYOut = Math.sin(_centerRads) * _outR,
+        _textX = Math.cos(_centerRads) * (_outR + 3),
+        _textY = Math.sin(_centerRads) * (_outR + _options.buttons_label_font_size) + _options.buttons_label_font_size / 2,
+        _segments = [];
+    this.buttons_layer.activate();
+    var _path = new paper.Path();
+    _path.add([_startXIn, _startYIn]);
+    _path.arcTo([_centerXIn, _centerYIn], [_endXIn, _endYIn]);
+    _path.lineTo([_endXOut,  _endYOut]);
+    _path.arcTo([_centerXOut, _centerYOut], [_startXOut, _startYOut]);
+    _path.fillColor = _options.buttons_background;
+    _path.opacity = .5;
+    _path.closed = true;
+    _path.__representation = _repr;
+    var _text = new paper.PointText(_textX,_textY);
+    _text.characterStyle = {
+        fontSize: _options.buttons_label_font_size,
+        fillColor: _options.buttons_label_color
+    };
+    if (_textX > 2) {
+        _text.paragraphStyle.justification = 'left';
+    } else if (_textX < -2) {
+        _text.paragraphStyle.justification = 'right';
+    } else {
+        _text.paragraphStyle.justification = 'center';
+    }
+    _text.visible = false;
+    var _visible = false,
+        _restPos = new paper.Point(-200, -200),
+        _grp = new paper.Group([_path, _text]),
+        _delta = _grp.position,
+        _imgdelta = new paper.Point([_centerX, _centerY]),
+        _currentPos = new paper.Point(0,0);
+    _text.content = _caption;
+    _grp.visible = false;
+    _grp.position = _restPos;
+    var _res = {
+        show: function() {
+            _visible = true;
+            _grp.position = _currentPos.add(_delta);
+            _grp.visible = true;
+        },
+        moveTo: function(_point) {
+            _currentPos = _point;
+            if (_visible) {
+                _grp.position = _point.add(_delta);
+            }
+        },
+        hide: function() {
+            _visible = false;
+            _grp.visible = false;
+            _grp.position = _restPos;
+        },
+        select: function() {
+            _path.opacity = .8;
+            _text.visible = true;
+        },
+        unselect: function() {
+            _path.opacity = .5;
+            _text.visible = false;
+        },
+        destroy: function() {
+            _grp.remove();
+        }
+    }
+    function showImage() {
+        var _raster = new paper.Raster(_img);
+        _raster.position = _imgdelta.add(_grp.position).subtract(_delta);
+        _grp.addChild(_raster);
+    }
+    if (_img.width) {
+        showImage();
+    } else {
+        Rkns.$(_img).on("load",showImage);
+    }
+    
+    return _res
+}
+
 Rkns.Renderer.Scene.prototype.addToBundles = function(_edgeRepr) {
     var _bundle = Rkns._(this.bundles).find(function(_bundle) {
         return ( 
@@ -1684,33 +1962,33 @@
 }
 
 Rkns.Renderer.Scene.prototype.isEditable = function() {
-	return (this.renkan.options.editor_mode && !this.renkan.read_only)
+    return (this.renkan.options.editor_mode && !this.renkan.read_only)
 }
 
 Rkns.Renderer.Scene.prototype.onStatusChange = function() {
-	var savebtn = this.$.find(".Rk-Save-Button"),
-		tip = savebtn.find(".Rk-TopBar-Tooltip-Contents");
-	if (this.renkan.read_only) {
-		savebtn.removeClass("disabled Rk-Save-Online").addClass("Rk-Save-ReadOnly");
-		tip.text(this.renkan.translate("Connection lost"));
-	} else {
-		if (this.renkan.options.snapshot_mode) {
-			savebtn.removeClass("Rk-Save-ReadOnly Rk-Save-Online");
-			tip.text(this.renkan.translate("Archive Project"));
-		} else {
-			savebtn.removeClass("disabled Rk-Save-ReadOnly").addClass("Rk-Save-Online");
-			tip.text(this.renkan.translate("Auto-save enabled"));
-		}
-	}
+    var savebtn = this.$.find(".Rk-Save-Button"),
+        tip = savebtn.find(".Rk-TopBar-Tooltip-Contents");
+    if (this.renkan.read_only) {
+        savebtn.removeClass("disabled Rk-Save-Online").addClass("Rk-Save-ReadOnly");
+        tip.text(this.renkan.translate("Connection lost"));
+    } else {
+        if (this.renkan.options.snapshot_mode) {
+            savebtn.removeClass("Rk-Save-ReadOnly Rk-Save-Online");
+            tip.text(this.renkan.translate("Archive Project"));
+        } else {
+            savebtn.removeClass("disabled Rk-Save-ReadOnly").addClass("Rk-Save-Online");
+            tip.text(this.renkan.translate("Auto-save enabled"));
+        }
+    }
 }
 
 Rkns.Renderer.Scene.prototype.setScale = function(_newScale, _offset) {
-	if (_newScale > Rkns.Renderer._MIN_SCALE && _newScale < Rkns.Renderer._MAX_SCALE) {
-	    this.scale = _newScale;
-	    if (_offset) {
-	    	this.offset = _offset
-	    }
-	    this.redraw();
+    if (_newScale > Rkns.Renderer._MIN_SCALE && _newScale < Rkns.Renderer._MAX_SCALE) {
+        this.scale = _newScale;
+        if (_offset) {
+            this.offset = _offset
+        }
+        this.redraw();
     }
 }
 
@@ -1724,7 +2002,7 @@
             _maxx = Math.max.apply(Math, _xx),
             _maxy = Math.max.apply(Math, _yy);
         var _scale = Math.max(Rkns.Renderer._MIN_SCALE, Math.min(Rkns.Renderer._MAX_SCALE, (paper.view.size.width - 2 * Rkns.Renderer._AUTOSCALE_MARGIN) / (_maxx - _minx), (paper.view.size.height - 2 * Rkns.Renderer._AUTOSCALE_MARGIN) / (_maxy - _miny)));
-		this.setScale(_scale, paper.view.center.subtract(new paper.Point([(_maxx + _minx) / 2, (_maxy + _miny) / 2]).multiply(_scale)));
+        this.setScale(_scale, paper.view.center.subtract(new paper.Point([(_maxx + _minx) / 2, (_maxy + _miny) / 2]).multiply(_scale)));
     }
     if (nodes.length === 1) {
         this.setScale(1, paper.view.center.subtract(new paper.Point([nodes.at(0).get("position").x, nodes.at(0).get("position").y])));
@@ -1732,9 +2010,9 @@
 }
 
 Rkns.Renderer.Scene.prototype.redrawMiniframe = function() {
-	var topleft = this.toMinimapCoords(this.toModelCoords(new paper.Point([0,0]))),
-		bottomright = this.toMinimapCoords(this.toModelCoords(paper.view.bounds.bottomRight));
-	this.minimap.miniframe.fitBounds(topleft, bottomright);
+    var topleft = this.toMinimapCoords(this.toModelCoords(new paper.Point([0,0]))),
+        bottomright = this.toMinimapCoords(this.toModelCoords(paper.view.bounds.bottomRight));
+    this.minimap.miniframe.fitBounds(topleft, bottomright);
 }
 
 Rkns.Renderer.Scene.prototype.rescaleMinimap = function() {
@@ -1747,16 +2025,16 @@
             _maxx = Math.max.apply(Math, _xx),
             _maxy = Math.max.apply(Math, _yy);
         var _scale = Math.min(
-        	this.scale * .8 * this.renkan.options.minimap_width / paper.view.bounds.width,
-        	this.scale * .8 * this.renkan.options.minimap_height / paper.view.bounds.height,
-        	( this.renkan.options.minimap_width - 2 * Rkns.Renderer._MINIMAP_MARGIN ) / (_maxx - _minx),
-        	( this.renkan.options.minimap_height - 2 * Rkns.Renderer._MINIMAP_MARGIN ) / (_maxy - _miny)
-    	);
+            this.scale * .8 * this.renkan.options.minimap_width / paper.view.bounds.width,
+            this.scale * .8 * this.renkan.options.minimap_height / paper.view.bounds.height,
+            ( this.renkan.options.minimap_width - 2 * Rkns.Renderer._MINIMAP_MARGIN ) / (_maxx - _minx),
+            ( this.renkan.options.minimap_height - 2 * Rkns.Renderer._MINIMAP_MARGIN ) / (_maxy - _miny)
+        );
         this.minimap.offset = this.minimap.size.divide(2).subtract(new paper.Point([(_maxx + _minx) / 2, (_maxy + _miny) / 2]).multiply(_scale));
         this.minimap.scale = _scale;
     }
     if (nodes.length === 1) {
-    	this.minimap.scale = .1;
+        this.minimap.scale = .1;
         this.minimap.offset = this.minimap.size.divide(2).subtract(new paper.Point([nodes.at(0).get("position").x, nodes.at(0).get("position").y]).multiply(this.minimap.scale));
     }
     this.redraw();
@@ -1845,12 +2123,18 @@
     });
 }
 
+Rkns.Renderer.Scene.prototype.unselectAll = function(_model) {
+    Rkns._(this.representations).each(function(_repr) {
+        _repr.unselect();
+    });
+}
+
 Rkns.Renderer.Scene.prototype.redraw = function() {
     Rkns._(this.representations).each(function(_representation) {
-    	_representation.redraw(true);
+        _representation.redraw(true);
     });
     if (this.minimap) {
-    	this.redrawMiniframe();
+        this.redrawMiniframe();
     }
     paper.view.draw();
 }
@@ -1875,45 +2159,60 @@
         }
     } else {
         if (this.selected_target) {
-            this.selected_target.unselect(null);
+            this.selected_target.unselect();
         }
         this.selected_target = null;
     }
 }
 
 Rkns.Renderer.Scene.prototype.paperShift = function(_delta) {
-	this.offset = this.offset.add(_delta);
+    this.offset = this.offset.add(_delta);
     this.redraw();
 }
 
 Rkns.Renderer.Scene.prototype.onMouseMove = function(_event) {
-    var _hitResult = paper.project.hitTest(_event.point);
+    var _off = this.canvas_$.offset(),
+        _point = new paper.Point([
+            _event.pageX - _off.left,
+            _event.pageY - _off.top
+        ]),
+        _delta = _point.subtract(this.last_point);
+    this.last_point = _point;
+    if (!this.is_dragging && this.mouse_down && _delta.length > Rkns.Renderer._MIN_DRAG_DISTANCE) {
+        this.is_dragging = true;
+    }
+    var _hitResult = paper.project.hitTest(_point);
     if (this.is_dragging) {
         if (this.click_target && typeof this.click_target.paperShift === "function") {
-            this.click_target.paperShift(_event.delta);
+            this.click_target.paperShift(_delta);
         } else {
-            this.paperShift(_event.delta);
+            this.paperShift(_delta);
         }
     } else {
         this.findTarget(_hitResult);
     }
+    paper.view.draw();
 }
 
-Rkns.Renderer.Scene.prototype.onMouseDown = function(_event) {
-    if (!this.click_target || this.click_target.type !== "temp-edge") {
+Rkns.Renderer.Scene.prototype.onMouseDown = function(_event, _isTouch) {
+    var _off = this.canvas_$.offset(),
+        _point = new paper.Point([
+            _event.pageX - _off.left,
+            _event.pageY - _off.top
+        ]);
+    this.last_point = _point;
+    this.mouse_down = true;
+    if (!this.click_target || this.click_target.type !== "Temp-edge") {
         this.removeRepresentationsOfType("editor");
         this.is_dragging = false;
-        var _hitResult = paper.project.hitTest(_event.point);
-        if (this.isEditable() && _hitResult && typeof _hitResult.item.__representation !== "undefined") {
+        var _hitResult = paper.project.hitTest(_point);
+        if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
             this.click_target = _hitResult.item.__representation;
-            if (this.click_target.type === "Node-link-button") {
-                this.removeRepresentationsOfType("editor");
-                this.addTempEdge(this.click_target.source_representation, _event.point);
-            }
+            this.click_target.mousedown(_event, _isTouch);
         } else {
             this.click_target = null;
             if (this.isEditable() && this.click_mode === Rkns.Renderer._CLICKMODE_ADDNODE) {
-                var _coords = this.toModelCoords(_event.point),
+                var _coords = this.toModelCoords(_point),
                     _data = {
                         id: Rkns.Utils.getUID('node'),
                         created_by: this.renkan.current_user,
@@ -1930,7 +2229,7 @@
     if (this.click_mode) {
         if (this.isEditable() && this.click_mode === Rkns.Renderer._CLICKMODE_STARTEDGE && this.click_target && this.click_target.type === "Node") {
             this.removeRepresentationsOfType("editor");
-            this.addTempEdge(this.click_target, _event.point);
+            this.addTempEdge(this.click_target, _point);
             this.click_mode = Rkns.Renderer._CLICKMODE_ENDEDGE;
             this.notif_$.fadeOut(function() {
                 Rkns.$(this).html(_renkan.translate("Click on a second node to complete the edge")).fadeIn();
@@ -1940,14 +2239,11 @@
             this.click_mode = false;
         }
     }
+    paper.view.draw();
 }
 
-Rkns.Renderer.Scene.prototype.onMouseDrag = function(_event) {
-    this.is_dragging = true;
-    this.onMouseMove(_event);
-}
-
-Rkns.Renderer.Scene.prototype.onMouseUp = function(_event) {
+Rkns.Renderer.Scene.prototype.onMouseUp = function(_event, _isTouch) {
+    this.mouse_down = false;
     if (this.click_target) {
         var _off = this.canvas_$.offset();
         this.click_target.mouseup(
@@ -1956,12 +2252,17 @@
                     _event.pageX - _off.left,
                     _event.pageY - _off.top
                 ])
-            }
+            },
+            _isTouch
         );
     } else {
         this.click_target = null;
         this.is_dragging = false;
+        if (_isTouch) {
+            this.unselectAll();
+        }
     }
+    paper.view.draw();
 }
 
 Rkns.Renderer.Scene.prototype.onScroll = function(_event, _scrolldelta) {
@@ -1973,9 +2274,9 @@
                 _event.pageY - _off.top
             ]).subtract(this.offset).multiply( Math.SQRT2 - 1 );
         if (this.totalScroll > 0) {
-        	this.setScale( this.scale * Math.SQRT2, this.offset.subtract(_delta) );
+            this.setScale( this.scale * Math.SQRT2, this.offset.subtract(_delta) );
         } else {
-        	this.setScale( this.scale * Math.SQRT1_2, this.offset.add(_delta.divide(Math.SQRT2)));
+            this.setScale( this.scale * Math.SQRT1_2, this.offset.add(_delta.divide(Math.SQRT2)));
         }
         this.totalScroll = 0;
     }
@@ -2006,3 +2307,109 @@
     }
     paper.view.draw();
 }
+
+Rkns.Renderer.Scene.prototype.dropData = function(_data, _event) {
+    if (!this.isEditable()) {
+        return;
+    }
+    if (_data["text/json"] || _data["application/json"]) {
+        try {
+            var jsondata = JSON.parse(_data["text/json"] || _data["application/json"]);
+            _(_data).extend(jsondata);
+        }
+        catch(e) {}
+    }
+    var newNode = {};
+    switch(_data["text/x-iri-specific-site"]) {
+        case "twitter":
+            var snippet = Rkns.$('<div>').html(_data["text/x-iri-selected-html"]),
+                tweetdiv = snippet.find(".tweet")
+            newNode.title = _renkan.translate("Tweet by ") + tweetdiv.attr("data-name");
+            newNode.uri = "http://twitter.com/" + tweetdiv.attr("data-screen-name") + "/status/" + tweetdiv.attr("data-tweet-id");
+            newNode.image = tweetdiv.find(".avatar").attr("src");
+            newNode.description = tweetdiv.find(".js-tweet-text:first").text();
+        break;
+        case "google":
+            var snippet = Rkns.$('<div>').html(_data["text/x-iri-selected-html"]);
+            newNode.title = snippet.find("h3:first").text().trim();
+            newNode.uri = snippet.find("h3 a").attr("href");
+            newNode.description = snippet.find(".st:first").text().trim();
+        break;
+        case undefined:
+        default:
+            if (_data["text/x-iri-source-uri"]) {
+                newNode.uri = _data["text/x-iri-source-uri"];
+            }
+            if (_data["text/plain"] || _data["text/x-iri-selected-text"]) {
+                newNode.description = (_data["text/plain"] || _data["text/x-iri-selected-text"]).replace(/[\s\n]+/gm,' ').trim();
+            }
+            if (_data["text/html"] || _data["text/x-iri-selected-html"]) {
+                var snippet = Rkns.$('<div>').html(_data["text/html"] || _data["text/x-iri-selected-html"]);
+                var _imgs = snippet.find("img");
+                if (_imgs.length) {
+                    newNode.image = _imgs[0].src;
+                }
+                var _as = snippet.find("a");
+                if (_as.length) {
+                    newNode.uri = _as[0].href;
+                }
+                newNode.title = snippet.find("[title]").attr("title") || newNode.title;
+                newNode.description = snippet.text().replace(/[\s\n]+/gm,' ').trim();
+            }
+            if (_data["text/uri-list"]) {
+                newNode.uri = _data["text/uri-list"];
+            }
+            if (_data["text/x-moz-url"] && !newNode.title) {
+                newNode.title = (_data["text/x-moz-url"].split("\n")[1] || "").trim();
+                if (newNode.title === newNode.uri) {
+                    newNode.title = false;
+                }
+            }
+            if (_data["text/x-iri-source-title"] && !newNode.title) {
+                newNode.title = _data["text/x-iri-source-title"];
+            }
+            if (_data["text/html"] || _data["text/x-iri-selected-html"]) {
+                newNode.image = snippet.find("[data-image]").attr("data-image") || newNode.image;
+                newNode.uri = snippet.find("[data-uri]").attr("data-uri") || newNode.uri;
+                newNode.title = snippet.find("[data-title]").attr("data-title") || newNode.title;
+                newNode.description = snippet.find("[data-description]").attr("data-description") || newNode.description;
+            }
+    }
+    if (!newNode.title) {
+        newNode.title = this.renkan.translate("Dragged resource");
+    }
+    var fields = ["title", "description", "uri", "image"];
+    for (var i = 0; i < fields.length; i++) {
+        var f = fields[i];
+        if (_data["text/x-iri-" + f] || _data[f]) {
+            newNode[f] = _data["text/x-iri-" + f] || _data[f];
+        }
+        if (newNode[f] === "none" || newNode[f] === "null") {
+            newNode[f] = undefined;
+        }
+    }
+    var _off = this.canvas_$.offset(),
+        _point = new paper.Point([
+            _event.pageX - _off.left,
+            _event.pageY - _off.top
+        ]),
+        _coords = this.toModelCoords(_point),
+        _nodedata = {
+            id: Rkns.Utils.getUID('node'),
+            created_by: this.renkan.current_user,
+            uri: newNode.uri || "",
+            title: newNode.title || "",
+            description: newNode.description || "",
+            image: newNode.image || "",
+            color: newNode.color || undefined,
+            position: {
+                x: _coords.x,
+                y: _coords.y
+            }
+        };
+    var _node = this.renkan.project.addNode(_nodedata),
+        _repr = this.getRepresentationByModel(_node);
+    if (_event.type === "drop") {
+        _repr.openEditor();
+    }
+}
--- a/client/js/twitter-bin.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/twitter-bin.js	Tue Apr 23 22:15:10 2013 +0200
@@ -2,16 +2,16 @@
 }
 
 Rkns.Twitter.Search = function(_renkan, _opts) {
-	this.renkan = _renkan;
-	this.opts = _opts;
+    this.renkan = _renkan;
+    this.opts = _opts;
 }
 
 Rkns.Twitter.Search.prototype.getBgClass = function() {
-	return "Rk-Twitter-Icon";
+    return "Rk-Twitter-Icon";
 }
 
 Rkns.Twitter.Search.prototype.getSearchTitle = function() {
-	return this.renkan.translate("Twitter");
+    return this.renkan.translate("Twitter");
 }
 
 Rkns.Twitter.Search.prototype.search = function(_q) {
@@ -38,7 +38,7 @@
 );
 
 Rkns.Twitter.Bin.prototype._init = function(_renkan, _opts) {
-	this.renkan = _renkan;
+    this.renkan = _renkan;
     this.search = _opts.search;
     this.title_icon_$.addClass('Rk-Twitter-Title-Icon');
     this.title_$.html(this.search).addClass("Rk-Twitter-Title");
--- a/client/js/wikipedia-bin.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/js/wikipedia-bin.js	Tue Apr 23 22:15:10 2013 +0200
@@ -11,16 +11,16 @@
 }
 
 Rkns.Wikipedia.Search.prototype.getSearchTitle = function() {
-	var langs = {
-		"fr": "French",
-		"en": "English",
-		"ja": "Japanese"
-	}
-	if (langs[this.lang]) {
-		return this.renkan.translate("Wikipedia in ") + this.renkan.translate(langs[this.lang]);
-	} else {
-		return this.renkan.translate("Wikipedia") + " [" + this.lang + "]";
-	}
+    var langs = {
+        "fr": "French",
+        "en": "English",
+        "ja": "Japanese"
+    }
+    if (langs[this.lang]) {
+        return this.renkan.translate("Wikipedia in ") + this.renkan.translate(langs[this.lang]);
+    } else {
+        return this.renkan.translate("Wikipedia") + " [" + this.lang + "]";
+    }
 }
 
 Rkns.Wikipedia.Search.prototype.search = function(_q) {
@@ -42,7 +42,7 @@
 );
 
 Rkns.Wikipedia.Bin.prototype._init = function(_renkan, _opts) {
-	this.renkan = _renkan;
+    this.renkan = _renkan;
     this.search = _opts.search;
     this.lang = _opts.lang || "en";
     this.title_icon_$.addClass('Rk-Wikipedia-Title-Icon Rk-Wikipedia-Lang-' + this.lang);
--- a/client/lib/backbone-relational.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/lib/backbone-relational.js	Tue Apr 23 22:15:10 2013 +0200
@@ -1,6 +1,6 @@
 /* vim: set tabstop=4 softtabstop=4 shiftwidth=4 noexpandtab: */
 /**
- * Backbone-relational.js 0.8.0+
+ * Backbone-relational.js 0.8.5
  * (c) 2011-2013 Paul Uithol and contributors (https://github.com/PaulUithol/Backbone-relational/graphs/contributors)
  * 
  * Backbone-relational may be freely distributed under the MIT license; see the accompanying LICENSE.txt.
@@ -1792,6 +1792,7 @@
 	 */
 	var reset = Backbone.Collection.prototype.__reset = Backbone.Collection.prototype.reset;
 	Backbone.Collection.prototype.reset = function( models, options ) {
+		options = _.extend( { merge: true }, options );
 		reset.call( this, models, options );
 
 		if ( this.model.prototype instanceof Backbone.RelationalModel ) {
--- a/client/lib/jquery.min.js	Tue Apr 23 22:14:59 2013 +0200
+++ b/client/lib/jquery.min.js	Tue Apr 23 22:15:10 2013 +0200
@@ -1,5 +1,6 @@
-/*! jQuery v1.9.1 | (c) 2005, 2012 jQuery Foundation, Inc. | jquery.org/license
+/*! jQuery v2.0.0 | (c) 2005, 2013 jQuery Foundation, Inc. | jquery.org/license
 //@ sourceMappingURL=jquery.min.map
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