57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
/**
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* @fileOverview 添加获取Runtime相关信息的方法。
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*/
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define([
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'../uploader',
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'../runtime/runtime',
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'./widget'
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], function( Uploader, Runtime ) {
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Uploader.support = function() {
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return Runtime.hasRuntime.apply( Runtime, arguments );
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};
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/**
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* @property {Object} [runtimeOrder=html5,flash]
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* @namespace options
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* @for Uploader
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* @description 指定运行时启动顺序。默认会想尝试 html5 是否支持，如果支持则使用 html5, 否则则使用 flash.
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*
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* 可以将此值设置成 `flash`，来强制使用 flash 运行时。
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*/
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return Uploader.register({
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name: 'runtime',
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init: function() {
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if ( !this.predictRuntimeType() ) {
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throw Error('Runtime Error');
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}
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},
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/**
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* 预测Uploader将采用哪个`Runtime`
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* @grammar predictRuntimeType() => String
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* @method predictRuntimeType
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* @for Uploader
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*/
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predictRuntimeType: function() {
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var orders = this.options.runtimeOrder || Runtime.orders,
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type = this.type,
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i, len;
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if ( !type ) {
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orders = orders.split( /\s*,\s*/g );
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for ( i = 0, len = orders.length; i < len; i++ ) {
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if ( Runtime.hasRuntime( orders[ i ] ) ) {
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this.type = type = orders[ i ];
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break;
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}
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}
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}
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return type;
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}
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});
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}); |