agenda-libre-ruby/public/webshims/shims/jme/base.js
2014-07-20 02:43:13 +02:00

424 lines
9.9 KiB
JavaScript

webshims.register('jmebase', function($, webshims, window, doc, undefined){
"use strict";
var props = {};
var fns = {};
var slice = Array.prototype.slice;
var readyLength = 0;
var options = $.extend({selector: '.mediaplayer'}, webshims.cfg.mediaelement.jme);
var baseSelector = options.selector;
webshims.cfg.mediaelement.jme = options;
if(!$.jme){
$.jme = {};
}
$.extend($.jme, {
pluginsClasses: [],
pluginsSel: '',
plugins: {},
props: props,
fns: fns,
data: function(elem, name, value){
var data = $(elem).data('jme') || $.data(elem, 'jme', {});
if(value === undefined){
return (name) ? data[name] : data;
} else {
data[name] = value;
}
},
runPlugin: function(sel){
if(readyLength){
$(document.querySelectorAll(baseSelector)).each(function(){
var controls = this.querySelectorAll(sel);
if(controls.length){
$(this).jmeFn('addControls', controls);
}
});
}
},
registerPlugin: function(name, plugin){
this.plugins[name] = plugin;
if(!plugin.nodeName){
plugin.nodeName = '';
}
if(!plugin.className){
plugin.className = name;
}
this.pluginsClasses.push('.'+plugin.className);
this.pluginsSel = this.pluginsClasses.join(', ');
options[name] = $.extend(plugin.options || {}, options[name]);
if(options[name] && options[name].text){
plugin.text = options[name].text;
} else if(options.i18n && options.i18n[name]){
plugin.text = options.i18n[name];
}
this.runPlugin('.'+plugin.className);
},
configmenuPlugins: {},
addToConfigmenu: function(name, create){
this.configmenuPlugins[name] = create;
},
defineMethod: function(name, fn){
fns[name] = fn;
},
defineProp: function(name, desc){
if(!desc){
desc = {};
}
if(!desc.set){
if(desc.readonly){
desc.set = function(){
throw(name +' is readonly');
};
} else {
desc.set = $.noop;
}
}
if(!desc.get){
desc.get = function(elem){
return $.jme.data(elem, name);
};
}
props[name] = desc;
},
prop: function(elem, name, value){
if(!props[name]){
return $.prop(elem, name, value);
}
if(value === undefined){
return props[name].get( elem );
} else {
var setValue = props[name].set(elem, value);
if(setValue === undefined){
setValue = value;
}
if(setValue != 'noDataSet'){
$.jme.data(elem, name, setValue);
}
}
}
});
$.fn.jmeProp = function(name, value){
return $.access( this, $.jme.prop, name, value, arguments.length > 1 );
};
$.fn.jmeFn = function(fn){
var args = slice.call( arguments, 1 );
var ret;
this.each(function(){
if(!$.jme.data(this).media){
$(this).closest(baseSelector).jmePlayer();
webshims.warn('jmeFn called to early or on wrong element!');
}
ret = (fns[fn] || $.prop(this, fn)).apply(this, args);
if(ret !== undefined){
return false;
}
});
return (ret !== undefined) ? ret : this;
};
var idlStates = {
emptied: 1,
pause: 1
};
var unwaitingEvents = {
canplay: 1, canplaythrough: 1
};
$.jme.initJME = function(context, insertedElement){
readyLength += $(context.querySelectorAll(baseSelector)).add(insertedElement.filter(baseSelector)).jmePlayer().length;
};
$.jme.getDOMList = function(attr){
var list = [];
if(!attr){
attr = [];
}
if(typeof attr == 'string'){
attr = attr.split(' ');
}
$.each(attr, function(i, id){
if(id){
id = document.getElementById(id);
if(id){
list.push(id);
}
}
});
return list;
};
$.jme.getButtonText = function(button, classes){
var isCheckbox;
var lastState;
var txtChangeFn = function(state){
if(lastState === state){return;}
lastState = state;
button
.removeClass(classes[(state) ? 0 : 1])
.addClass(classes[state])
;
if(isCheckbox){
button.prop('checked', !!state);
(button.data('checkboxradio') || {refresh: $.noop}).refresh();
}
};
if (button.is('[type="checkbox"], [type="radio"]')){
button.prop('checked', function(){
return this.defaultChecked;
});
isCheckbox = true;
} else if(button.is('a')){
button.on('click', function(e){
e.preventDefault();
});
}
return txtChangeFn;
};
$.fn.jmePlayer = function(opts){
return this.each(function(){
var mediaUpdateFn, canPlay, removeCanPlay, canplayTimer, lastState, stopEmptiedEvent, forceRender;
var media = $('audio, video', this).eq(0);
var base = $(this);
var jmeData = $.jme.data(this);
var mediaData = $.jme.data(media[0]);
base.addClass(media.prop('nodeName').toLowerCase()+'player');
mediaData.player = base;
mediaData.media = media;
if(!jmeData.media){
forceRender = function(){
base[0].className = base[0].className;
};
removeCanPlay = function(){
media.off('canplay', canPlay);
clearTimeout(canplayTimer);
};
canPlay = function(){
var state = (media.prop('paused')) ? 'idle' : 'playing';
base.attr('data-state', state);
};
mediaUpdateFn = function(e){
var state = e.type;
var readyState;
var paused;
removeCanPlay();
if(unwaitingEvents[state] && lastState != 'waiting'){
return;
}
if(stopEmptiedEvent && state == 'emptied'){
return;
}
if(state == 'ended' || $.prop(this, 'ended')){
state = 'ended';
} else if(state == 'waiting'){
if($.prop(this, 'readyState') > 2){
state = '';
} else {
canplayTimer = setTimeout(function(){
if(media.prop('readyState') > 2){
canPlay();
}
}, 9);
media.on('canPlay', canPlay);
}
} else if(idlStates[state]){
state = 'idle';
} else {
readyState = $.prop(this, 'readyState');
paused = $.prop(this, 'paused');
if(!paused && readyState < 3){
state = 'waiting';
} else if(!paused && readyState > 2){
state = 'playing';
} else {
state = 'idle';
}
}
if(state == 'idle' && base._seekpause){
state = false;
}
if(state){
lastState = state;
base.attr('data-state', state);
setTimeout(forceRender);
}
};
jmeData.media = media;
jmeData.player = base;
media
.on('emptied waiting canplay canplaythrough playing ended pause mediaerror', mediaUpdateFn)
.on('volumechange updateJMEState', function(){
var volume = $.prop(this, 'volume');
base[!volume || $.prop(this, 'muted') ? 'addClass' : 'removeClass']('state-muted');
if(volume < 0.01){
volume = 'no';
} else if(volume < 0.36){
volume = 'low';
} else if(volume < 0.7){
volume = 'medium';
} else {
volume = 'high';
}
base.attr('data-volume', volume);
})
;
if($.jme.pluginsSel){
base.jmeFn('addControls', $(base[0].querySelectorAll($.jme.pluginsSel)));
}
if(mediaUpdateFn){
media.on('updateJMEState', mediaUpdateFn).triggerHandler('updateJMEState');
}
}
});
};
$.jme.defineProp('isPlaying', {
get: function(elem){
return (!$.prop(elem, 'ended') && !$.prop(elem, 'paused') && $.prop(elem, 'readyState') > 1 && !$.data(elem, 'mediaerror'));
},
readonly: true
});
$.jme.defineProp('player', {
readonly: true
});
$.jme.defineProp('media', {
readonly: true
});
$.jme.defineProp('srces', {
get: function(elem){
var srces;
var data = $.jme.data(elem);
var src = data.media.prop('src');
if(src){
return [{src: src}];
}
srces = $.map($('source', data.media).get(), function(source){
var i, len;
var src = {
src: $.prop(source, 'src')
};
var attributes = source.attributes;
for(i = 0, len = attributes.length; i < len; i++){
if(!('specified' in attributes[i]) || attributes[i].specified){
src[attributes[i].nodeName] = attributes[i].nodeValue;
}
}
return src;
});
return srces;
},
set: function(elem, srces){
var data = $.jme.data(elem);
var setSrc = function(i, src){
if(typeof src == 'string'){
src = {src: src};
}
$(document.createElement('source')).attr(src).appendTo(data.media);
};
data.media.removeAttr('src').find('source').remove();
if($.isArray(srces)){
$.each(srces, setSrc);
} else {
setSrc(0, srces);
}
data.media.jmeFn('load');
return 'noDataSet';
}
});
$.jme.defineMethod('togglePlay', function(){
$(this).jmeFn( ( props.isPlaying.get(this) ) ? 'pause' : 'play' );
});
$.jme.defineMethod('addControls', function(controls){
var data = $.jme.data(this) || {};
if(!data.media){return;}
var oldControls = $.jme.data(data.player[0], 'controlElements') || $([]);
controls = $(controls);
if($.jme.pluginsSel){
controls = controls.find($.jme.pluginsSel).add(controls.filter($.jme.pluginsSel));
}
if(controls.length){
$.each($.jme.plugins, function(name, plugin){
var control, options, i, opt;
var pluginControls = controls.filter('.'+plugin.className);
for(i = 0; i < pluginControls.length; i++){
control = $(pluginControls[i]);
options = $.jme.data(pluginControls[i]);
options.player = data.player;
options.media = data.media;
if(!options._rendered){
options._rendered = true;
if(plugin.options){
for(opt in plugin.options){
if(!(opt in options)){
options[opt] = plugin.options[opt];
}
}
}
plugin._create(control, data.media, data.player, options);
}
}
});
$.jme.data(data.player[0], 'controlElements', oldControls.add(controls));
data.player.triggerHandler('controlsadded');
}
});
webshims.ready('DOM mediaelement', function(){
webshims.isReady('jme', true);
webshims.addReady($.jme.initJME);
webshims.isReady('jme-base', true);
if(webshims.cfg.debug !== false && document.getElementsByTagName('video').length && !document.querySelector(baseSelector)){
webshims.warn("found video element but video wasn't wrapped inside a ."+ baseSelector +" element. Will not add control UI");
}
});
});