chamilo-lms2/main/inc/lib/javascript/jquery-jplayer/jquery.jplayer.inspector.js

/*
 * jPlayerInspector Plugin for jPlayer (2.0.0+) Plugin for jQuery JavaScript Library
 * http://www.happyworm.com/jquery/jplayer
 *
 * Copyright (c) 2009 - 2011 Happyworm Ltd
 * Dual licensed under the MIT and GPL licenses.
 *  - http://www.opensource.org/licenses/mit-license.php
 *  - http://www.gnu.org/copyleft/gpl.html
 *
 * Author: Mark J Panaghiston
 * Version: 1.0.3
 * Date: 7th August 2011
 *
 * For use with jPlayer Version: 2.0.29
 *
 * Note: Declare inspector instances after jPlayer instances. ie., Otherwise the jPlayer instance is nonsense.
 */

(function($, undefined) {
	$.jPlayerInspector = {};
	$.jPlayerInspector.i = 0;
	$.jPlayerInspector.defaults = {
		jPlayer: undefined, // The jQuery selector of the jPlayer instance to inspect.
		idPrefix: "jplayer_inspector_",
		visible: false
	};
	
	var methods = {
		init: function(options) {
			var self = this;
			var $this = $(this);
			
			var config = $.extend({}, $.jPlayerInspector.defaults, options);
			$(this).data("jPlayerInspector", config);

			config.id = $(this).attr("id");
			config.jPlayerId = config.jPlayer.attr("id");

			config.windowId = config.idPrefix + "window_" + $.jPlayerInspector.i;
			config.statusId = config.idPrefix + "status_" + $.jPlayerInspector.i;
			config.configId = config.idPrefix + "config_" + $.jPlayerInspector.i;
			config.toggleId = config.idPrefix + "toggle_" + $.jPlayerInspector.i;
			config.eventResetId = config.idPrefix + "event_reset_" + $.jPlayerInspector.i;
			config.updateId = config.idPrefix + "update_" + $.jPlayerInspector.i;
			config.eventWindowId = config.idPrefix + "event_window_" + $.jPlayerInspector.i;
			
			config.eventId = {};
			config.eventJq = {};
			config.eventTimeout = {};
			config.eventOccurrence = {};
			
			$.each($.jPlayer.event, function(eventName,eventType) {
				config.eventId[eventType] = config.idPrefix + "event_" + eventName + "_" + $.jPlayerInspector.i;
				config.eventOccurrence[eventType] = 0;
			});
			
			var structure = 
				'<p><a href="#" id="' + config.toggleId + '">' + (config.visible ? "Hide" : "Show") + '</a> jPlayer Inspector</p>' 
				+ '<div id="' + config.windowId + '">'
					+ '<div id="' + config.statusId + '"></div>'
					+ '<div id="' + config.eventWindowId + '" style="padding:5px 5px 0 5px;background-color:#eee;border:1px dotted #000;">'
						+ '<p style="margin:0 0 10px 0;"><strong>jPlayer events that have occurred over the past 1 second:</strong>'
						+ '<br />(Backgrounds: <span style="padding:0 5px;background-color:#eee;border:1px dotted #000;">Never occurred</span> <span style="padding:0 5px;background-color:#fff;border:1px dotted #000;">Occurred before</span> <span style="padding:0 5px;background-color:#9f9;border:1px dotted #000;">Occurred</span> <span style="padding:0 5px;background-color:#ff9;border:1px dotted #000;">Multiple occurrences</span> <a href="#" id="' + config.eventResetId + '">reset</a>)</p>';
			
			// MJP: Would use the next 3 lines for ease, but the events are just slapped on the page.
			// $.each($.jPlayer.event, function(eventName,eventType) {
			// 	structure += '<div id="' + config.eventId[eventType] + '" style="float:left;">' + eventName + '</div>';
			// });
			
			var eventStyle = "float:left;margin:0 5px 5px 0;padding:0 5px;border:1px dotted #000;";
			// MJP: Doing it longhand so order and layout easier to control.
			structure +=
						'<div id="' + config.eventId[$.jPlayer.event.ready] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.flashreset] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.resize] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.repeat] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.click] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.error] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.warning] + '" style="' + eventStyle + '"></div>'

						+ '<div id="' + config.eventId[$.jPlayer.event.loadstart] + '" style="clear:left;' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.progress] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.timeupdate] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.volumechange] + '" style="' + eventStyle + '"></div>'

						+ '<div id="' + config.eventId[$.jPlayer.event.play] + '" style="clear:left;' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.pause] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.waiting] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.playing] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.seeking] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.seeked] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.ended] + '" style="' + eventStyle + '"></div>'

						+ '<div id="' + config.eventId[$.jPlayer.event.loadeddata] + '" style="clear:left;' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.loadedmetadata] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.canplay] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.canplaythrough] + '" style="' + eventStyle + '"></div>'

						+ '<div id="' + config.eventId[$.jPlayer.event.suspend] + '" style="clear:left;' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.abort] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.emptied] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.stalled] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.ratechange] + '" style="' + eventStyle + '"></div>'
						+ '<div id="' + config.eventId[$.jPlayer.event.durationchange] + '" style="' + eventStyle + '"></div>'

						+ '<div style="clear:both"></div>';

			// MJP: Would like a check here in case we missed an event.

			// MJP: Check fails, since it is not on the page yet.
/*			$.each($.jPlayer.event, function(eventName,eventType) {
				if($("#" + config.eventId[eventType])[0] === undefined) {
					structure += '<div id="' + config.eventId[eventType] + '" style="clear:left;' + eventStyle + '">' + eventName + '</div>';
				}
			});
*/
			structure +=
					'</div>'
					+ '<p><a href="#" id="' + config.updateId + '">Update</a> jPlayer Inspector</p>'
					+ '<div id="' + config.configId + '"></div>'
				+ '</div>';
			$(this).html(structure);
			
			config.windowJq = $("#" + config.windowId);
			config.statusJq = $("#" + config.statusId);
			config.configJq = $("#" + config.configId);
			config.toggleJq = $("#" + config.toggleId);
			config.eventResetJq = $("#" + config.eventResetId);
			config.updateJq = $("#" + config.updateId);

			$.each($.jPlayer.event, function(eventName,eventType) {
				config.eventJq[eventType] = $("#" + config.eventId[eventType]);
				config.eventJq[eventType].text(eventName + " (" + config.eventOccurrence[eventType] + ")"); // Sets the text to the event name and (0);
				
				config.jPlayer.bind(eventType + ".jPlayerInspector", function(e) {
					config.eventOccurrence[e.type]++;
					if(config.eventOccurrence[e.type] > 1) {
						config.eventJq[e.type].css("background-color","#ff9");
					} else {
						config.eventJq[e.type].css("background-color","#9f9");
					}
					config.eventJq[e.type].text(eventName + " (" + config.eventOccurrence[e.type] + ")");
					// The timer to handle the color
					clearTimeout(config.eventTimeout[e.type]);
					config.eventTimeout[e.type] = setTimeout(function() {
						config.eventJq[e.type].css("background-color","#fff");
					}, 1000);
					// The timer to handle the occurences.
					setTimeout(function() {
						config.eventOccurrence[e.type]--;
						config.eventJq[e.type].text(eventName + " (" + config.eventOccurrence[e.type] + ")");
					}, 1000);
					if(config.visible) { // Update the status, if inspector open.
						$this.jPlayerInspector("updateStatus");
					}
				});
			});

			config.jPlayer.bind($.jPlayer.event.ready + ".jPlayerInspector", function(e) {
				$this.jPlayerInspector("updateConfig");
			});

			config.toggleJq.click(function() {
				if(config.visible) {
					$(this).text("Show");
					config.windowJq.hide();
					config.statusJq.empty();
					config.configJq.empty();
				} else {
					$(this).text("Hide");
					config.windowJq.show();
					config.updateJq.click();
				}
				config.visible = !config.visible;
				$(this).blur();
				return false;
			});

			config.eventResetJq.click(function() {
				$.each($.jPlayer.event, function(eventName,eventType) {
					config.eventJq[eventType].css("background-color","#eee");
				});
				$(this).blur();
				return false;
			});

			config.updateJq.click(function() {
				$this.jPlayerInspector("updateStatus");
				$this.jPlayerInspector("updateConfig");
				return false;
			});

			if(!config.visible) {
				config.windowJq.hide();
			} else {
				// config.updateJq.click();
			}
			
			$.jPlayerInspector.i++;

			return this;
		},
		destroy: function() {
			$(this).data("jPlayerInspector") && $(this).data("jPlayerInspector").jPlayer.unbind(".jPlayerInspector");
			$(this).empty();
		},
		updateConfig: function() { // This displays information about jPlayer's configuration in inspector
		
			var jPlayerInfo = "<p>This jPlayer instance is running in your browser where:<br />"

			for(i = 0; i < $(this).data("jPlayerInspector").jPlayer.data("jPlayer").solutions.length; i++) {
				var solution = $(this).data("jPlayerInspector").jPlayer.data("jPlayer").solutions[i];
				jPlayerInfo += "&nbsp;jPlayer's <strong>" + solution + "</strong> solution is";				
				if($(this).data("jPlayerInspector").jPlayer.data("jPlayer")[solution].used) {
					jPlayerInfo += " being <strong>used</strong> and will support:<strong>";
					for(format in $(this).data("jPlayerInspector").jPlayer.data("jPlayer")[solution].support) {
						if($(this).data("jPlayerInspector").jPlayer.data("jPlayer")[solution].support[format]) {
							jPlayerInfo += " " + format;
						}
					}
					jPlayerInfo += "</strong><br />";
				} else {
					jPlayerInfo += " <strong>not required</strong><br />";
				}
			}
			jPlayerInfo += "</p>";

			if($(this).data("jPlayerInspector").jPlayer.data("jPlayer").html.active) {
				if($(this).data("jPlayerInspector").jPlayer.data("jPlayer").flash.active) {
					jPlayerInfo += "<strong>Problem with jPlayer since both HTML5 and Flash are active.</strong>";
				} else {
					jPlayerInfo += "The <strong>HTML5 is active</strong>.";
				}
			} else {
				if($(this).data("jPlayerInspector").jPlayer.data("jPlayer").flash.active) {
					jPlayerInfo += "The <strong>Flash is active</strong>.";
				} else {
					jPlayerInfo += "No solution is currently active. jPlayer needs a setMedia().";
				}
			}
			jPlayerInfo += "</p>";

			var formatType = $(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.formatType;
			jPlayerInfo += "<p><code>status.formatType = '" + formatType + "'</code><br />";
			if(formatType) {
				jPlayerInfo += "<code>Browser canPlay('" + $.jPlayer.prototype.format[formatType].codec + "')</code>";
			} else {
				jPlayerInfo += "</p>";
			}
			
			jPlayerInfo += "<p><code>status.src = '" + $(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.src + "'</code></p>";

			jPlayerInfo += "<p><code>status.media = {<br />";
			for(prop in $(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.media) {
				jPlayerInfo += "&nbsp;" + prop + ": " + $(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.media[prop] + "<br />"; // Some are strings
			}
			jPlayerInfo += "};</code></p>"

			+ "<p>Raw browser test for HTML5 support. Should equal a function if HTML5 is available.<br />";
			if($(this).data("jPlayerInspector").jPlayer.data("jPlayer").html.audio.available) {
				jPlayerInfo += "<code>htmlElement.audio.canPlayType = " + (typeof $(this).data("jPlayerInspector").jPlayer.data("jPlayer").htmlElement.audio.canPlayType) +"</code><br />"
			}
			if($(this).data("jPlayerInspector").jPlayer.data("jPlayer").html.video.available) {
				jPlayerInfo += "<code>htmlElement.video.canPlayType = " + (typeof $(this).data("jPlayerInspector").jPlayer.data("jPlayer").htmlElement.video.canPlayType) +"</code>";
			}
			jPlayerInfo += "</p>";

			jPlayerInfo += "<p>This instance is using the constructor options:<br />"
			+ "<code>$('#" + $(this).data("jPlayerInspector").jPlayer.data("jPlayer").internal.self.id + "').jPlayer({<br />"

			+ "&nbsp;swfPath: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "swfPath") + "',<br />"

			+ "&nbsp;solution: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "solution") + "',<br />"

			+ "&nbsp;supplied: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "supplied") + "',<br />"

			+ "&nbsp;preload: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "preload") + "',<br />"
			
			+ "&nbsp;volume: " + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "volume") + ",<br />"
			
			+ "&nbsp;muted: " + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "muted") + ",<br />"

			+ "&nbsp;backgroundColor: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "backgroundColor") + "',<br />"

			+ "&nbsp;cssSelectorAncestor: '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "cssSelectorAncestor") + "',<br />"

			+ "&nbsp;cssSelector: {";

			var cssSelector = $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "cssSelector");
			for(prop in cssSelector) {
				
				// jPlayerInfo += "<br />&nbsp;&nbsp;" + prop + ": '" + cssSelector[prop] + "'," // This works too of course, but want to use option method for deep keys.
				jPlayerInfo += "<br />&nbsp;&nbsp;" + prop + ": '" + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "cssSelector." + prop) + "',"
			}

			jPlayerInfo = jPlayerInfo.slice(0, -1); // Because the sloppy comma was bugging me.

			jPlayerInfo += "<br />&nbsp;},<br />"

			+ "&nbsp;errorAlerts: " + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "errorAlerts") + ",<br />"
			
			+ "&nbsp;warningAlerts: " + $(this).data("jPlayerInspector").jPlayer.jPlayer("option", "warningAlerts") + "<br />"

			+ "});</code></p>";
			$(this).data("jPlayerInspector").configJq.html(jPlayerInfo);
			return this;
		},
		updateStatus: function() { // This displays information about jPlayer's status in the inspector
			$(this).data("jPlayerInspector").statusJq.html(
				"<p>jPlayer is " +
				($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.paused ? "paused" : "playing") +
				" at time: " + Math.floor($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.currentTime*10)/10 + "s." +
				" (d: " + Math.floor($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.duration*10)/10 + "s" +
				", sp: " + Math.floor($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.seekPercent) + "%" +
				", cpr: " + Math.floor($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.currentPercentRelative) + "%" +
				", cpa: " + Math.floor($(this).data("jPlayerInspector").jPlayer.data("jPlayer").status.currentPercentAbsolute) + "%)</p>"
			);
			return this;
		}
	};
	$.fn.jPlayerInspector = function( method ) {
		// Method calling logic
		if ( methods[method] ) {
			return methods[ method ].apply( this, Array.prototype.slice.call( arguments, 1 ));
		} else if ( typeof method === 'object' || ! method ) {
			return methods.init.apply( this, arguments );
		} else {
			$.error( 'Method ' +  method + ' does not exist on jQuery.jPlayerInspector' );
		}    
	};
})(jQuery);