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@ -73,59 +73,77 @@ vAPI.shutdown = (function() { |
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/******************************************************************************/ |
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/******************************************************************************/ |
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var messagingConnector = function(response) { |
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if ( !response ) { |
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return; |
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} |
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var channels = vAPI.messaging.channels; |
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var channel, listener; |
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vAPI.messaging = { |
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listeners: new Set(), |
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pending: new Map(), |
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requestId: 1, |
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connected: false, |
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if ( response.broadcast && !response.channelName ) { |
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for ( channel in channels ) { |
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if ( channels.hasOwnProperty(channel) === false ) { |
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continue; |
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setup: function() { |
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this.addListener(this.builtinListener); |
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if ( this.toggleListenerCallback === null ) { |
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this.toggleListenerCallback = this.toggleListener.bind(this); |
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} |
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} |
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listener = channels[channel].listener; |
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if ( typeof listener === 'function' ) { |
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listener(response.msg); |
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window.addEventListener('pagehide', this.toggleListenerCallback, true); |
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window.addEventListener('pageshow', this.toggleListenerCallback, true); |
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}, |
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shutdown: function() { |
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if ( this.toggleListenerCallback !== null ) { |
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window.removeEventListener('pagehide', this.toggleListenerCallback, true); |
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window.removeEventListener('pageshow', this.toggleListenerCallback, true); |
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} |
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} |
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this.removeAllListeners(); |
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//service pending callbacks
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var pending = this.pending; |
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this.pending.clear(); |
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for ( var callback of pending.values() ) { |
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if ( typeof callback === 'function' ) { |
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callback(null); |
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} |
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} |
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return; |
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} |
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} |
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}, |
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if ( response.requestId ) { |
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listener = vAPI.messaging.listeners[response.requestId]; |
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delete vAPI.messaging.listeners[response.requestId]; |
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delete response.requestId; |
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connect: function() { |
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if ( !this.connected ) { |
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if ( this.messageListenerCallback === null ) { |
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this.messageListenerCallback = this.messageListener.bind(this); |
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} |
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} |
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if ( !listener ) { |
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channel = channels[response.channelName]; |
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listener = channel && channel.listener; |
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addMessageListener(this.messageListenerCallback); |
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this.connected = true; |
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} |
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} |
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}, |
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if ( typeof listener === 'function' ) { |
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listener(response.msg); |
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disconnect: function() { |
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if ( this.connected ) { |
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removeMessageListener(); |
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this.connected = false; |
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} |
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} |
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}; |
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/******************************************************************************/ |
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}, |
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vAPI.messaging = { |
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channels: {}, |
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listeners: {}, |
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requestId: 1, |
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messageListener: function(msg) { |
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var details = JSON.parse(msg); |
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if ( !details ) { |
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return; |
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} |
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setup: function() { |
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this.connector = function(msg) { |
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messagingConnector(JSON.parse(msg)); |
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}; |
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if ( details.broadcast ) { |
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this.sendToListeners(details.msg); |
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return; |
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} |
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addMessageListener(this.connector); |
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if ( details.requestId ) { |
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var listener = this.pending.get(details.requestId); |
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if ( listener !== undefined ) { |
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this.pending.delete(details.requestId); |
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listener(details.msg); |
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return; |
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} |
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} |
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}, |
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messageListenerCallback: null, |
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this.channels.vAPI = { |
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listener: function(msg) { |
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builtinListener: function(msg) { |
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if ( typeof msg.cmd === 'string' && msg.cmd === 'injectScript' ) { |
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if ( typeof msg.cmd === 'string' && msg.cmd === 'injectScript' ) { |
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var details = msg.details; |
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var details = msg.details; |
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if ( !details.allFrames && window !== window.top ) { |
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if ( !details.allFrames && window !== window.top ) { |
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@ -133,72 +151,61 @@ vAPI.messaging = { |
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} |
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} |
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self.injectScript(details.file); |
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self.injectScript(details.file); |
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} |
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} |
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} |
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}; |
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}, |
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close: function() { |
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if ( !this.connector ) { |
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return; |
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} |
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removeMessageListener(); |
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this.connector = null; |
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this.channels = {}; |
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this.listeners = {}; |
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}, |
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}, |
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channel: function(channelName, callback) { |
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if ( !channelName ) { |
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return; |
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} |
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this.channels[channelName] = { |
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channelName: channelName, |
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listener: typeof callback === 'function' ? callback : null, |
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send: function(message, callback) { |
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if ( !vAPI.messaging.connector ) { |
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vAPI.messaging.setup(); |
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} |
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send: function(channelName, message, callback) { |
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this.connect() |
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message = { |
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message = { |
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channelName: self._sandboxId_ + '|' + this.channelName, |
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channelName: self._sandboxId_ + '|' + channelName, |
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msg: message |
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msg: message |
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}; |
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}; |
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if ( callback ) { |
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if ( callback ) { |
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message.requestId = vAPI.messaging.requestId++; |
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vAPI.messaging.listeners[message.requestId] = callback; |
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message.requestId = this.requestId++; |
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this.pending.set(message.requestId, callback); |
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} |
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} |
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sendAsyncMessage('umatrix:background', message); |
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sendAsyncMessage('umatrix:background', message); |
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}, |
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}, |
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close: function() { |
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delete vAPI.messaging.channels[this.channelName]; |
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} |
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}; |
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return this.channels[channelName]; |
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}, |
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toggleListener: function({type, persisted}) { |
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toggleListener: function({type, persisted}) { |
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if ( !vAPI.messaging.connector ) { |
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if ( type === 'pagehide' && !persisted ) { |
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vAPI.shutdown.exec(); |
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this.shutdown(); |
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return; |
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return; |
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} |
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} |
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if ( type === 'pagehide' ) { |
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if ( type === 'pagehide' ) { |
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removeMessageListener(); |
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return; |
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this.disconnect(); |
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} else /* if ( type === 'pageshow' ) */ { |
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this.connect(); |
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} |
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} |
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}, |
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toggleListenerCallback: null, |
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if ( persisted ) { |
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addMessageListener(vAPI.messaging.connector); |
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sendToListeners: function(msg) { |
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for ( var listener of this.listeners ) { |
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listener(msg); |
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} |
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} |
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}, |
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addListener: function(listener) { |
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this.listeners.add(listener); |
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this.connect() |
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}, |
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removeListener: function(listener) { |
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this.listeners.delete(listener); |
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}, |
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removeAllListeners: function() { |
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this.disconnect(); |
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this.listeners.clear();; |
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} |
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} |
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}; |
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}; |
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window.addEventListener('pagehide', vAPI.messaging.toggleListener, true); |
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window.addEventListener('pageshow', vAPI.messaging.toggleListener, true); |
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vAPI.messaging.setup() |
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/******************************************************************************/ |
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/******************************************************************************/ |
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@ -206,7 +213,9 @@ window.addEventListener('pageshow', vAPI.messaging.toggleListener, true); |
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// we are not a top window (because element picker can still
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// we are not a top window (because element picker can still
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// be injected in top window).
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// be injected in top window).
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if ( window !== window.top ) { |
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if ( window !== window.top ) { |
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// Can anything be done?
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vAPI.shutdown.add(function() { |
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vAPI = null; |
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}); |
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} |
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} |
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/******************************************************************************/ |
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/******************************************************************************/ |
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