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/*
* Module : selenium/selenium-injected-compute.js
* Copyright : (c) 2011-2012, Galois, Inc.
*
* Maintainer :
* Stability : Provisional
* Portability: Not Portable (Selenium-specific)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Init FiveUI, if necessary:
if (typeof fiveui == 'undefined') {
fiveui = {};
}
/**
* @return {{on: function(!string, function(*)), emit: function(!string, *)}}
*/
var obtainComputePort = function() {
fiveui.selPort = new fiveui.SeleniumPort();
return fiveui.selPort;
};
/**
* @constructor
*/
fiveui.SeleniumPort = function() {
this._events = {};
this._messages = [];
};
/**
* Listen to incoming messages.
*
* @param {!string} evt The event to listen for.
* @param {!function(*)} cb The callback to invoke.
* @return {void}
*/
fiveui.SeleniumPort.prototype.on = function(evt, cb) {
this._events[evt] = cb;
};
/**
* Send a message to the background.
*
* @param {!string} evt The event to fire.
* @param {?Object} obj The data to associate with the event.
* @return {void}
*/
fiveui.SeleniumPort.prototype.emit = function(evt, obj) {
this._messages.push({ type: evt, payload: obj });
};
/**
* Send a message to the injected script.
*
* @param {!string} evt The event to fire.
* @param {?Object} obj The data to associate with the event.
*/
fiveui.SeleniumPort.prototype.send = function(evt, obj) {
if (this._events[evt]) {
this._events[evt](obj);
}
};
/**
* Check to see if any messages have been generated.
*
* @param {[String]} type Message type to filter for (default: no filter)
* @return {!Array.<{string, Object}>}
*/
fiveui.SeleniumPort.prototype.query = function (type) {
var msgs = [];
var i;
if (!type) {
msgs = this._messages;
}
else {
for (i=0; i < this._messages.length; i += 1) {
console.log(this._messages);
if (this._messages[i].type === type) {
msgs.push(this._messages[i]);
}
}
}
// flush the read messages:
this._messages = [];
// return the new messages to the backend:
return msgs;
};
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