97 lines
2.3 KiB
JavaScript
97 lines
2.3 KiB
JavaScript
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/**
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* Contains the routines loaded by the plugin Worker under web-browser.
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*
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* Initializes the web environment version of the platform-dependent
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* connection object for the plugin site
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*/
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self.application = {};
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self.connection = {};
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(function(){
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/**
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* Event lisener for the plugin message
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*/
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self.addEventListener('message', function(e){
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var m = e.data.data;
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switch (m.type) {
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case 'import':
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case 'importJailed': // already jailed in the Worker
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importScript(m.url);
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break;
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case 'execute':
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execute(m.code);
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break;
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case 'message':
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conn._messageHandler(m.data);
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break;
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}
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});
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/**
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* Loads and executes the JavaScript file with the given url
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*
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* @param {String} url to load
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*/
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var importScript = function(url) {
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var error = null;
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try {
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importScripts(url);
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} catch (e) {
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error = e;
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}
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if (error) {
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self.postMessage({type: 'importFailure', url: url});
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throw error;
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} else {
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self.postMessage({type: 'importSuccess', url: url});
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}
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}
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/**
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* Executes the given code in a jailed environment. For web
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* implementation, we're already jailed in the worker, so simply
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* eval()
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*
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* @param {String} code code to execute
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*/
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var execute = function(code) {
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try {
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eval(code);
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} catch (e) {
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self.postMessage({type: 'executeFailure'});
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throw e;
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}
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self.postMessage({type: 'executeSuccess'});
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}
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/**
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* Connection object provided to the JailedSite constructor,
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* plugin site implementation for the web-based environment.
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* Global will be then cleared to prevent exposure into the
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* Worker, so we put this local connection object into a closure
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*/
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var conn = {
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disconnect: function(){ self.close(); },
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send: function(data) {
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self.postMessage({type: 'message', data: data});
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},
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onMessage: function(h){ conn._messageHandler = h; },
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_messageHandler: function(){},
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onDisconnect: function() {}
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};
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connection = conn;
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})();
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