154 lines
4.4 KiB
JavaScript
154 lines
4.4 KiB
JavaScript
/**
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* @fileOverview Transport flash实现
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*/
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define([
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'../../base',
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'./runtime',
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'../client'
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], function( Base, FlashRuntime, RuntimeClient ) {
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var $ = Base.$;
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return FlashRuntime.register( 'Transport', {
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init: function() {
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this._status = 0;
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this._response = null;
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this._responseJson = null;
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},
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send: function() {
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var owner = this.owner,
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opts = this.options,
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xhr = this._initAjax(),
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blob = owner._blob,
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server = opts.server,
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binary;
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xhr.connectRuntime( blob.ruid );
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if ( opts.sendAsBinary ) {
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server += (/\?/.test( server ) ? '&' : '?') +
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$.param( owner._formData );
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binary = blob.uid;
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} else {
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$.each( owner._formData, function( k, v ) {
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xhr.exec( 'append', k, v );
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});
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xhr.exec( 'appendBlob', opts.fileVal, blob.uid,
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opts.filename || owner._formData.name || '' );
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}
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this._setRequestHeader( xhr, opts.headers );
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xhr.exec( 'send', {
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method: opts.method,
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url: server,
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forceURLStream: opts.forceURLStream,
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mimeType: 'application/octet-stream'
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}, binary );
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},
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getStatus: function() {
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return this._status;
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},
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getResponse: function() {
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return this._response || '';
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},
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getResponseAsJson: function() {
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return this._responseJson;
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},
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abort: function() {
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var xhr = this._xhr;
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if ( xhr ) {
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xhr.exec('abort');
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xhr.destroy();
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this._xhr = xhr = null;
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}
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},
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destroy: function() {
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this.abort();
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},
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_initAjax: function() {
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var me = this,
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xhr = new RuntimeClient('XMLHttpRequest');
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xhr.on( 'uploadprogress progress', function( e ) {
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var percent = e.loaded / e.total;
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percent = Math.min( 1, Math.max( 0, percent ) );
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return me.trigger( 'progress', percent );
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});
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xhr.on( 'load', function() {
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var status = xhr.exec('getStatus'),
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readBody = false,
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err = '',
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p;
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xhr.off();
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me._xhr = null;
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if ( status >= 200 && status < 300 ) {
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readBody = true;
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} else if ( status >= 500 && status < 600 ) {
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readBody = true;
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err = 'server-'+status;
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} else {
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err = 'http-'+status;
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}
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if ( readBody ) {
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me._response = xhr.exec('getResponse');
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me._response = decodeURIComponent( me._response );
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// flash 处理可能存在 bug, 没辙只能靠 js 了
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// try {
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// me._responseJson = xhr.exec('getResponseAsJson');
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// } catch ( error ) {
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p = function( s ) {
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try {
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if (window.JSON && window.JSON.parse) {
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return JSON.parse(s);
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}
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return new Function('return ' + s).call();
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} catch ( err ) {
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return {};
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}
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};
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me._responseJson = me._response ? p(me._response) : {};
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// }
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}
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xhr.destroy();
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xhr = null;
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return err ? me.trigger( 'error', err ) : me.trigger('load');
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});
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xhr.on( 'error', function() {
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var status = xhr.exec('getStatus'),err = status?'http-'+status:'http'；
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xhr.off();
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me._xhr = null;
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me.trigger( 'error', err );
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});
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me._xhr = xhr;
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return xhr;
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},
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_setRequestHeader: function( xhr, headers ) {
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$.each( headers, function( key, val ) {
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xhr.exec( 'setRequestHeader', key, val );
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});
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}
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});
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});
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