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background.js
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background.js
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// Copyright (c) 2014 Adobe Systems Incorporated. All rights reserved.
//
// 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.
/*
Relay messages between in-page content script and devtools extension
because the two are not allowed to communicate to each other.
*/
// extension key, as published on Chrome web store
var key = "nenndldnbcncjmeacmnondmkkfedmgmp",
devtoolsPort,
pagePort;
chrome.runtime.onConnect.addListener(function(port) {
if (port.name == key + "page"){
pagePort = port;
pagePort.onMessage.addListener(function(data){
devtoolsPort.postMessage(data);
});
}
if (port.name == key + "devtools"){
devtoolsPort = port;
devtoolsPort.onMessage.addListener(function(data){
if (data.type === "inject"){
chrome.tabs.executeScript(data.tabId, {file: './lib/css-shapes-editor/dist/CSSShapesEditor-min.js'});
chrome.tabs.executeScript(data.tabId, {file: './contentscript.js'});
} else {
pagePort.postMessage(data);
}
});
devtoolsPort.onDisconnect.addListener(function(e){
// remove any editors existing on the inspected page
pagePort.postMessage({type: 'teardown'});
});
}
});