src/web/app/themes/atahualpa/js/jquery.cross-slide.js
changeset 0 505fe5249d9c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/web/app/themes/atahualpa/js/jquery.cross-slide.js	Wed Dec 04 11:40:06 2019 +0100
@@ -0,0 +1,424 @@
+/*!
+ * CrossSlide jQuery plugin v0.6.2
+ *
+ * Copyright 2007-2010 by Tobia Conforto <tobia.conforto@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+/* Changelog:
+ *
+ * 0.6.2  2010-09-29  Added support for rel attribute
+ * 0.6.1  2010-08-02  Bugfixes
+ * 0.6    2010-07-03  Variant Ken Burns effect
+ * 0.5    2010-06-13  Support for animation control and event callbacks
+ * 0.4.2  2010-06-07  Bugfix
+ * 0.4.1  2010-06-04  Added target option
+ * 0.4    2010-05-20  Better error reporting, published on GitHub
+ * 0.3.7  2009-05-14  Fixed bug when container div's CSS position is not set
+ * 0.3.6  2009-04-16  Added alt option
+ * 0.3.5  2009-03-12  Fixed usage of href parameter in 'Ken Burns' mode
+ * 0.3.4  2009-03-12  Added shuffle option,
+ *                    contrib. by Ralf Santbergen <ralf_santbergen@hotmail.com>
+ * 0.3.3  2008-12-14  Added onclick option
+ * 0.3.2  2008-11-11  Fixed CSS bugs, contrib. by Erwin Bot <info@ixgcms.nl>
+ * 0.3.1  2008-11-11  Better error messages
+ * 0.3    2008-10-22  Option to repeat the animation a fixed number of times
+ * 0.2    2008-10-15  Linkable images, contrib. by Tim Rainey <tim@zmlabs.com>
+ * 0.1.1  2008-09-18  Compatibility with prototype.js
+ * 0.1    2008-08-21  Re-released under GPL v2
+ * 0.1    2007-08-19  Initial release
+ */
+
+(function() {
+	var $ = jQuery,
+		animate = ($.fn.startAnimation ? 'startAnimation' : 'animate'),
+		pause_missing = 'pause plugin missing.';
+
+	// utility to format a string with {0}, {1}... placeholders
+	function format(str) {
+		for (var i = 1; i < arguments.length; i++)
+			str = str.replace(new RegExp('\\{' + (i-1) + '}', 'g'), arguments[i]);
+		return str;
+	}
+
+	// utility to abort with a message to the error console
+	function abort() {
+		arguments[0] = 'CrossSlide: ' + arguments[0];
+		throw new Error(format.apply(null, arguments));
+	}
+
+	// utility to parse "from" and "to" parameters
+	function parse_position_param(param) {
+		var zoom = 1;
+		var tokens = param.replace(/^\s*|\s*$/g, '').split(/\s+/);
+		if (tokens.length > 3) throw new Error();
+		if (tokens[0] == 'center')
+			if (tokens.length == 1)
+				tokens = ['center', 'center'];
+			else if (tokens.length == 2 && tokens[1].match(/^[\d.]+x$/i))
+				tokens = ['center', 'center', tokens[1]];
+		if (tokens.length == 3)
+			zoom = parseFloat(tokens[2].match(/^([\d.]+)x$/i)[1]);
+		var pos = tokens[0] + ' ' + tokens[1];
+		if (pos == 'left top' || pos == 'top left')
+			return { xrel: 0, yrel: 0, zoom: zoom };
+		if (pos == 'left center' || pos == 'center left')
+			return { xrel: 0, yrel: .5, zoom: zoom };
+		if (pos == 'left bottom' || pos == 'bottom left')
+			return { xrel: 0, yrel: 1, zoom: zoom };
+		if (pos == 'center top' || pos == 'top center')
+			return { xrel: .5, yrel: 0, zoom: zoom };
+		if (pos == 'center center')
+			return { xrel: .5, yrel: .5, zoom: zoom };
+		if (pos == 'center bottom' || pos == 'bottom center')
+			return { xrel: .5, yrel: 1, zoom: zoom };
+		if (pos == 'right top' || pos == 'top right')
+			return { xrel: 1, yrel: 0, zoom: zoom };
+		if (pos == 'right center' || pos == 'center right')
+			return { xrel: 1, yrel: .5, zoom: zoom };
+		if (pos == 'right bottom' || pos == 'bottom right')
+			return { xrel: 1, yrel: 1, zoom: zoom };
+		return {
+			xrel: parseInt(tokens[0].match(/^(\d+)%$/)[1]) / 100,
+			yrel: parseInt(tokens[1].match(/^(\d+)%$/)[1]) / 100,
+			zoom: zoom
+		};
+	}
+
+	$.fn.crossSlide = function(opts, plan, callback)
+	{
+		var self = this,
+				self_width = this.width(),
+				self_height = this.height();
+
+		// must be called on exactly 1 element
+		if (self.length != 1)
+			abort('crossSlide() must be called on exactly 1 element')
+
+		// saving params for crossSlide.restart
+		self.get(0).crossSlideArgs = [ opts, plan, callback ];
+
+		// make working copy of plan
+		plan = $.map(plan, function(p) {
+			return $.extend({}, p);
+		});
+
+		// options with default values
+		if (! opts.easing)
+			opts.easing = opts.variant ? 'swing' : 'linear';
+		if (! callback)
+			callback = function() {};
+
+		// first preload all the images, while getting their actual width and height
+		(function(proceed) {
+
+			var n_loaded = 0;
+			function loop(i, img) {
+				// this loop is a for (i = 0; i < plan.length; i++)
+				// with independent var i, img (for the onload closures)
+				img.onload = function(e) {
+					n_loaded++;
+					plan[i].width = img.width;
+					plan[i].height = img.height;
+					if (n_loaded == plan.length)
+						proceed();
+				}
+				img.src = plan[i].src;
+				if (i + 1 < plan.length)
+					loop(i + 1, new Image());
+			}
+			loop(0, new Image());
+
+		})(function() { // then proceed
+
+			// check global params
+			if (! opts.fade)
+				abort('missing fade parameter.');
+			if (opts.speed && opts.sleep)
+				abort('you cannot set both speed and sleep at the same time.');
+
+			// conversion from sec to ms; from px/sec to px/ms
+			var fade_ms = Math.round(opts.fade * 1000);
+			if (opts.sleep)
+				var sleep = Math.round(opts.sleep * 1000);
+			if (opts.speed)
+				var speed = opts.speed / 1000,
+						fade_px = Math.round(fade_ms * speed);
+
+			// set container css
+			self.empty().css({
+				overflow: 'hidden',
+				padding: 0
+			});
+			if (! /^(absolute|relative|fixed)$/.test(self.css('position')))
+				self.css({ position: 'relative' });
+			if (! self.width() || ! self.height())
+				abort('container element does not have its own width and height');
+
+			// random sorting
+			if (opts.shuffle)
+				plan.sort(function() {
+					return Math.random() - 0.5;
+				});
+
+			// prepare each image
+			for (var i = 0; i < plan.length; ++i) {
+
+				var p = plan[i];
+				if (! p.src)
+					abort('missing src parameter in picture {0}.', i + 1);
+
+				if (speed) { // speed/dir mode
+
+					// check parameters and translate speed/dir mode into full mode
+					// (from/to/time)
+					switch (p.dir) {
+						case 'up':
+							p.from = { xrel: .5, yrel: 0, zoom: 1 };
+							p.to = { xrel: .5, yrel: 1, zoom: 1 };
+							var slide_px = p.height - self_height - 2 * fade_px;
+							break;
+						case 'down':
+							p.from = { xrel: .5, yrel: 1, zoom: 1 };
+							p.to = { xrel: .5, yrel: 0, zoom: 1 };
+							var slide_px = p.height - self_height - 2 * fade_px;
+							break;
+						case 'left':
+							p.from = { xrel: 0, yrel: .5, zoom: 1 };
+							p.to = { xrel: 1, yrel: .5, zoom: 1 };
+							var slide_px = p.width - self_width - 2 * fade_px;
+							break;
+						case 'right':
+							p.from = { xrel: 1, yrel: .5, zoom: 1 };
+							p.to = { xrel: 0, yrel: .5, zoom: 1 };
+							var slide_px = p.width - self_width - 2 * fade_px;
+							break;
+						default:
+							abort('missing or malformed dir parameter in picture {0}.', i+1);
+					}
+					if (slide_px <= 0)
+						abort('impossible animation: either picture {0} is too small or '
+							+ 'div is too large or fade duration too long.', i + 1);
+					p.time_ms = Math.round(slide_px / speed);
+
+				} else if (! sleep) { // full mode
+
+					// check and parse parameters
+					if (! p.from || ! p.to || ! p.time)
+						abort('missing either speed/sleep option, or from/to/time params '
+							+ 'in picture {0}.', i + 1);
+					try {
+						p.from = parse_position_param(p.from)
+					} catch (e) {
+						abort('malformed "from" parameter in picture {0}.', i + 1);
+					}
+					try {
+						p.to = parse_position_param(p.to)
+					} catch (e) {
+						abort('malformed "to" parameter in picture {0}.', i + 1);
+					}
+					if (! p.time)
+						abort('missing "time" parameter in picture {0}.', i + 1);
+					p.time_ms = Math.round(p.time * 1000)
+				}
+
+				// precalculate left/top/width/height bounding values
+				if (p.from)
+					$.each([ p.from, p.to ], function(i, each) {
+						each.width = Math.round(p.width * each.zoom);
+						each.height = Math.round(p.height * each.zoom);
+						each.left = Math.round((self_width - each.width) * each.xrel);
+						each.top = Math.round((self_height - each.height) * each.yrel);
+					});
+
+				// append the image (or anchor) element to the container
+				var img, elm;
+				elm = img = $(format('<img src="{0}"/>', p.src));
+				if (p.href)
+					elm = $(format('<a href="{0}"></a>', p.href)).append(img);
+				if (p.onclick)
+					elm.click(p.onclick);
+				if (p.alt)
+					img.attr('alt', p.alt);
+				if (p.rel)
+					elm.attr('rel', p.rel);
+				if (p.href && p.target)
+					elm.attr('target', p.target);
+				elm.appendTo(self);
+			}
+			delete speed; // speed mode has now been translated to full mode
+
+			// utility to compute the css for a given phase between p.from and p.to
+			// 0: begin fade-in, 1: end fade-in, 2: begin fade-out, 3: end fade-out
+			function position_to_css(p, phase) {
+				var pos = [ 0, fade_ms / (p.time_ms + 2 * fade_ms),
+					1 - fade_ms / (p.time_ms + 2 * fade_ms), 1 ][phase];
+				return {
+					left: Math.round(p.from.left + pos * (p.to.left - p.from.left)),
+					top: Math.round(p.from.top + pos * (p.to.top - p.from.top)),
+					width: Math.round(p.from.width + pos * (p.to.width - p.from.width)),
+					height: Math.round(p.from.height + pos * (p.to.height-p.from.height))
+				};
+			}
+
+			// find images to animate and set initial css attributes
+			var imgs = self.find('img').css({
+				position: 'absolute',
+				visibility: 'hidden',
+				top: 0,
+				left: 0,
+				border: 0
+			});
+
+			// show first image
+			imgs.eq(0).css({ visibility: 'visible' });
+			if (! sleep)
+				imgs.eq(0).css(position_to_css(plan[0], opts.variant ? 0 : 1));
+
+			// create animation chain
+			var countdown = opts.loop;
+			function create_chain(i, chainf) {
+				// building the chain backwards, or inside out
+
+				if (i % 2 == 0) {
+					if (sleep) {
+						// single image sleep
+						var i_sleep = i / 2,
+								i_hide = (i_sleep - 1 + plan.length) % plan.length,
+								img_sleep = imgs.eq(i_sleep),
+								img_hide = imgs.eq(i_hide);
+						var newf = function() {
+							callback(i_sleep, img_sleep.get(0));
+							img_hide.css('visibility', 'hidden');
+							setTimeout(chainf, sleep);
+						};
+					} else {
+						// single image animation
+						var i_slide = i / 2,
+								i_hide = (i_slide - 1 + plan.length) % plan.length,
+								img_slide = imgs.eq(i_slide),
+								img_hide = imgs.eq(i_hide),
+								time = plan[i_slide].time_ms,
+								slide_anim = position_to_css(plan[i_slide],
+									opts.variant ? 3 : 2);
+						var newf = function() {
+							callback(i_slide, img_slide.get(0));
+							img_hide.css('visibility', 'hidden');
+							img_slide[animate](slide_anim, time, opts.easing, chainf);
+						};
+					}
+				} else {
+					// double image animation
+					var i_from = Math.floor(i / 2),
+							i_to = Math.ceil(i / 2) % plan.length,
+							img_from = imgs.eq(i_from),
+							img_to = imgs.eq(i_to),
+							from_anim = {},
+							to_init = { visibility: 'visible' },
+							to_anim = {};
+					if (i_to > i_from) {
+						to_init.opacity = 0;
+						to_anim.opacity = 1;
+						if (opts.doubleFade)
+							from_anim.opacity = 0;
+					} else {
+						from_anim.opacity = 0;
+						if (opts.doubleFade) {
+							to_init.opacity = 0;
+							to_anim.opacity = 1;
+						}
+					}
+					if (! sleep) {
+						// moving images
+						$.extend(to_init, position_to_css(plan[i_to], 0));
+						if (! opts.variant) {
+							$.extend(from_anim, position_to_css(plan[i_from], 3));
+							$.extend(to_anim, position_to_css(plan[i_to], 1));
+						}
+					}
+					if ($.isEmptyObject(to_anim)) {
+						var newf = function() {
+							callback(i_to, img_to.get(0), i_from, img_from.get(0));
+							img_to.css(to_init);
+							img_from[animate](from_anim, fade_ms, 'linear', chainf);
+						};
+					} else if ($.isEmptyObject(from_anim)) {
+						var newf = function() {
+							callback(i_to, img_to.get(0), i_from, img_from.get(0));
+							img_to.css(to_init);
+							img_to[animate](to_anim, fade_ms, 'linear', chainf);
+						};
+					} else {
+						var newf = function() {
+							callback(i_to, img_to.get(0), i_from, img_from.get(0));
+							img_to.css(to_init);
+							img_to[animate](to_anim, fade_ms, 'linear');
+							img_from[animate](from_anim, fade_ms, 'linear', chainf);
+						};
+					}
+				}
+
+				// if the loop option was requested, push a countdown check
+				if (opts.loop && i == plan.length * 2 - 2) {
+					var newf_orig = newf;
+					newf = function() {
+						if (--countdown) newf_orig();
+					}
+				}
+
+				if (i > 0)
+					return create_chain(i - 1, newf);
+				else
+					return newf;
+			}
+			var animation = create_chain(plan.length * 2 - 1,
+				function() { return animation(); });
+
+			// start animation
+			animation();
+		});
+		return self;
+	};
+
+	$.fn.crossSlideFreeze = function()
+	{
+		this.find('img').stop();
+	}
+
+	$.fn.crossSlideStop = function()
+	{
+		this.find('img').stop().remove();
+	}
+
+	$.fn.crossSlideRestart = function()
+	{
+		this.find('img').stop().remove();
+		$.fn.crossSlide.apply(this, this.get(0).crossSlideArgs);
+	}
+
+	$.fn.crossSlidePause = function()
+	{
+		if (! $.fn.pause)
+			abort(pause_missing);
+		this.find('img').pause();
+	}
+
+	$.fn.crossSlideResume = function()
+	{
+		if (! $.fn.pause)
+			abort(pause_missing);
+		this.find('img').resume();
+	}
+})();
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