71 lines
1.8 KiB
JavaScript
71 lines
1.8 KiB
JavaScript
/**
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* @fileOverview Html5Runtime
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*/
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define([
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'../../base',
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'../runtime',
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'../compbase'
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], function( Base, Runtime, CompBase ) {
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var type = 'html5',
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components = {};
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function Html5Runtime() {
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var pool = {},
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me = this,
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destroy = this.destroy;
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Runtime.apply( me, arguments );
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me.type = type;
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// 这个方法的调用者，实际上是RuntimeClient
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me.exec = function( comp, fn/*, args...*/) {
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var client = this,
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uid = client.uid,
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args = Base.slice( arguments, 2 ),
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instance;
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if ( components[ comp ] ) {
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instance = pool[ uid ] = pool[ uid ] ||
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new components[ comp ]( client, me );
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if ( instance[ fn ] ) {
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return instance[ fn ].apply( instance, args );
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}
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}
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};
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me.destroy = function() {
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// @todo 删除池子中的所有实例
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return destroy && destroy.apply( this, arguments );
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};
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}
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Base.inherits( Runtime, {
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constructor: Html5Runtime,
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// 不需要连接其他程序，直接执行callback
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init: function() {
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var me = this;
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setTimeout(function() {
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me.trigger('ready');
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}, 1 );
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}
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});
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// 注册Components
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Html5Runtime.register = function( name, component ) {
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var klass = components[ name ] = Base.inherits( CompBase, component );
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return klass;
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};
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// 注册html5运行时。
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// 只有在支持的前提下注册。
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if ( window.Blob && window.FileReader && window.DataView ) {
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Runtime.addRuntime( type, Html5Runtime );
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}
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return Html5Runtime;
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}); |