web/lib/metadataplayer/Controller.js
changeset 0 7f8907368bd5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/metadataplayer/Controller.js	Fri Oct 18 17:54:44 2013 +0200
@@ -0,0 +1,277 @@
+/* Displays Play and Pause buttons, Search Button and Form, Volume Control */
+
+IriSP.Widgets.Controller = function(player, config) {
+    IriSP.Widgets.Widget.call(this, player, config);
+    this.lastSearchValue = "";
+};
+
+IriSP.Widgets.Controller.prototype = new IriSP.Widgets.Widget();
+
+IriSP.Widgets.Controller.prototype.defaults = {
+    disable_annotate_btn: false,
+    disable_search_btn: false,
+    disable_ctrl_f: false
+};
+
+IriSP.Widgets.Controller.prototype.template =
+    '<div class="Ldt-Ctrl">'
+    + '<div class="Ldt-Ctrl-Left">'
+    + '<div class="Ldt-Ctrl-button Ldt-Ctrl-Play Ldt-Ctrl-Play-PlayState Ldt-TraceMe" title="{{l10n.play_pause}}"></div>'
+    + '<div class="Ldt-Ctrl-spacer"></div>'
+    + '{{^disable_annotate_btn}}'
+    + '<div class="Ldt-Ctrl-button Ldt-Ctrl-Annotate Ldt-TraceMe" title="{{l10n.annotate}}"></div>'
+    + '<div class="Ldt-Ctrl-spacer"></div>'
+    + '{{/disable_annotate_btn}}'
+    + '{{^disable_search_btn}}'
+    + '<div class="Ldt-Ctrl-button Ldt-Ctrl-SearchBtn Ldt-TraceMe" title="{{l10n.search}}"></div>'
+    + '<div class="Ldt-Ctrl-spacer"></div>'
+    + '{{/disable_search_btn}}'
+    + '<div class="Ldt-Ctrl-Search">'
+    + '<input class="Ldt-Ctrl-SearchInput Ldt-TraceMe"></input>'
+    + '</div>'
+    + '</div>'
+    + '<div class="Ldt-Ctrl-Right">'
+    + '<div class="Ldt-Ctrl-spacer"></div>'
+    + '<div class="Ldt-Ctrl-Time">'
+    + '<div class="Ldt-Ctrl-Time-Elapsed" title="{{l10n.elapsed_time}}">00:00</div>'
+    + '<div class="Ldt-Ctrl-Time-Separator">/</div>'
+    + '<div class="Ldt-Ctrl-Time-Total" title="{{l10n.total_time}}">00:00</div>'
+    + '</div>'
+    + '<div class="Ldt-Ctrl-spacer"></div>'
+    + '<div class="Ldt-Ctrl-button Ldt-Ctrl-Sound Ldt-Ctrl-Sound-Full Ldt-TraceMe" title="{{l10n.mute_unmute}}"></div>'
+    + '</div>'
+    + '<div class="Ldt-Ctrl-Volume-Control" title="{{l10n.volume_control}}">'
+    + '<div class="Ldt-Ctrl-Volume-Bar"></div>'
+    + '</div>'
+    + '</div>';
+
+IriSP.Widgets.Controller.prototype.messages = {
+    en: {
+        play_pause: "Play/Pause",
+        mute_unmute: "Mute/Unmute",
+        play: "Play",
+        pause: "Pause",
+        mute: "Mute",
+        unmute: "Unmute",
+        annotate: "Annotate",
+        search: "Search",
+        elapsed_time: "Elapsed time",
+        total_time: "Total duration",
+        volume: "Volume",
+        volume_control: "Volume control"
+    },
+    fr: {
+        play_pause: "Lecture/Pause",
+        mute_unmute: "Couper/Activer le son",
+        play: "Lecture",
+        pause: "Pause",
+        mute: "Couper le son",
+        unmute: "Activer le son",
+        annotate: "Annoter",
+        search: "Rechercher",
+        elapsed_time: "Temps écoulé",
+        total_time: "Durée totale",
+        volume: "Niveau sonore",
+        volume_control: "Réglage du niveau sonore"
+    }
+};
+
+IriSP.Widgets.Controller.prototype.draw = function() {
+    var _this = this;
+    this.renderTemplate();
+    
+    // Define blocks
+    this.$playButton = this.$.find(".Ldt-Ctrl-Play");
+    this.$searchBlock = this.$.find(".Ldt-Ctrl-Search");
+    this.$searchInput = this.$.find(".Ldt-Ctrl-SearchInput");
+    this.$volumeBar = this.$.find(".Ldt-Ctrl-Volume-Bar");
+    
+    // handle events
+    this.onMediaEvent("play","playButtonUpdater");
+    this.onMediaEvent("pause","playButtonUpdater");
+    this.onMediaEvent("volumechange","volumeUpdater");
+    this.onMediaEvent("timeupdate","timeDisplayUpdater");
+    this.onMediaEvent("loadedmetadata","volumeUpdater");
+    
+    // handle clicks
+    this.$playButton.click(this.functionWrapper("playHandler"));
+    
+    this.$.find(".Ldt-Ctrl-Annotate").click(function() {
+        _this.player.trigger("CreateAnnotation.toggle");
+    });
+    this.$.find(".Ldt-Ctrl-SearchBtn").click(this.functionWrapper("searchButtonHandler"));
+    
+    this.$searchInput.keyup(this.functionWrapper("searchHandler"));
+  
+	var _volctrl = this.$.find(".Ldt-Ctrl-Volume-Control");
+    this.$.find('.Ldt-Ctrl-Sound')
+        .click(this.functionWrapper("muteHandler"))
+        .mouseover(function() {
+            _volctrl.show();
+        })
+        .mouseout(function() {
+            _volctrl.hide();
+        });
+    _volctrl.mouseover(function() {
+        _volctrl.show();
+    }).mouseout(function() {
+        _volctrl.hide();
+    });
+    
+    // Handle CTRL-F
+    if (!this.disable_ctrl_f) {
+        var _fKey = "F".charCodeAt(0),
+            _lastCtrlFTime = 0;
+        IriSP.jQuery(document).keydown(function(_event) {
+            if (_event.keyCode === _fKey && (_event.ctrlKey || _event.metaKey)) {
+                var _time = IriSP.jQuery.now();
+                if (_time - _lastCtrlFTime > 2000) {
+                    _this.searchButtonHandler();
+                }
+                _lastCtrlFTime = _time;
+                return false;
+            }
+        });
+    }
+    
+    // Allow Volume Cursor Dragging
+    this.$volumeBar.slider({
+        slide: function(event, ui) {
+            _this.$volumeBar.attr("title",_this.l10n.volume+': ' + ui.value + '%');
+            _this.media.setVolume(ui.value / 100);
+        },
+        stop: this.functionWrapper("volumeUpdater")
+    });
+
+    // trigger an IriSP.Player.MouseOver to the widgets that are interested (i.e : sliderWidget)
+    this.$.hover(
+        function() {
+            _this.player.trigger("Player.MouseOver");
+        }, 
+        function() {
+            _this.player.trigger("Player.MouseOut");
+        });
+    
+    this.timeDisplayUpdater(new IriSP.Model.Time(0));
+    
+    var annotations = this.source.getAnnotations();
+    annotations.on("search", function(_text) {
+        _this.$searchInput.val(_text);
+        _this.showSearchBlock();
+    });
+    annotations.on("found", function(_text) {
+        _this.$searchInput.css('background-color','#e1ffe1');
+    });
+    annotations.on("not-found", function(_text) {
+        _this.$searchInput.css('background-color', "#d62e3a");
+    });
+    annotations.on("search-cleared", function() {
+        _this.hideSearchBlock();
+    });
+   
+};
+
+/* Update the elasped time div */
+IriSP.Widgets.Controller.prototype.timeDisplayUpdater = function(_time) {
+  
+    // we get it at each call because it may change.
+    var _totalTime = this.media.duration;
+    this.$.find(".Ldt-Ctrl-Time-Elapsed").html(_time.toString());
+    this.$.find(".Ldt-Ctrl-Time-Total").html(_totalTime.toString());
+};
+
+/* update the icon of the button - separate function from playHandler
+   because in some cases (for instance, when the user directly clicks on
+   the jwplayer window) we have to change the icon without playing/pausing
+*/
+IriSP.Widgets.Controller.prototype.playButtonUpdater = function() {
+    if (this.media.getPaused()) {
+    /* the background sprite is changed by adding/removing the correct classes */
+        this.$playButton
+            .attr("title", this.l10n.play)
+            .removeClass("Ldt-Ctrl-Play-PauseState")
+            .addClass("Ldt-Ctrl-Play-PlayState");
+    } else {
+        this.$playButton
+            .attr("title", this.l10n.pause)
+            .removeClass("Ldt-Ctrl-Play-PlayState")
+            .addClass("Ldt-Ctrl-Play-PauseState");
+    }
+};
+
+
+IriSP.Widgets.Controller.prototype.playHandler = function() {
+    if (this.media.getPaused()) {        
+        this.media.play();
+    } else {
+        this.media.pause();
+    }  
+};
+
+IriSP.Widgets.Controller.prototype.muteHandler = function() {
+    this.media.setMuted(!this.media.getMuted());
+};
+
+IriSP.Widgets.Controller.prototype.volumeUpdater = function() {
+    var _muted = this.media.getMuted(),
+        _vol = this.media.getVolume();
+    if (_vol === false) {
+        _vol = .5;
+    }
+    var _soundCtl = this.$.find(".Ldt-Ctrl-Sound");
+    _soundCtl.removeClass("Ldt-Ctrl-Sound-Mute Ldt-Ctrl-Sound-Half Ldt-Ctrl-Sound-Full");
+    if (_muted) {        
+        _soundCtl.attr("title", this.l10n.unmute)
+            .addClass("Ldt-Ctrl-Sound-Mute");    
+    } else {
+        _soundCtl.attr("title", this.l10n.mute)
+            .addClass(_vol < .5 ? "Ldt-Ctrl-Sound-Half" : "Ldt-Ctrl-Sound-Full" );
+    }
+    this.$volumeBar.slider("value", _muted ? 0 : 100 * _vol);
+};
+
+IriSP.Widgets.Controller.prototype.showSearchBlock = function() {
+    this.$searchBlock.animate({ width:"160px" }, 200);
+    this.$searchInput.css('background-color','#fff');
+    this.$searchInput.focus();
+};
+
+IriSP.Widgets.Controller.prototype.hideSearchBlock = function() {
+    this.$searchBlock.animate( { width: 0 }, 200);
+};
+
+/** react to clicks on the search button */
+IriSP.Widgets.Controller.prototype.searchButtonHandler = function() {
+    if ( !this.$searchBlock.width() ) {
+        this.showSearchBlock();
+        var _val = this.$searchInput.val();
+        if (_val) {
+            this.source.getAnnotations().search(_val);
+        }
+	} else {
+        this.hideSearchBlock();
+    }
+};
+
+/** this handler is called whenever the content of the search
+   field changes */
+IriSP.Widgets.Controller.prototype.searchHandler = function() {
+    if ( !this.$searchBlock.width() ) {
+        this.$searchBlock.css({ width:"160px" });
+        this.$searchInput.css('background-color','#fff');
+    }
+    var _val = this.$searchInput.val();
+    this._positiveMatch = false;
+    
+    // do nothing if the search field is empty, instead of highlighting everything.
+    if (_val !== this.lastSearchValue) {
+        if (_val) {
+            this.source.getAnnotations().search(_val);
+        } else {
+            this.source.getAnnotations().trigger("clear-search");
+            this.$searchInput.css('background-color','');
+        }
+    }
+    this.lastSearchValue = _val;
+};
+