background.js


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// Copyright 2017 Google LLC
//
// 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.

chrome.pageAction.onClicked.addListener(function(tab) {
  chrome.tabs.update(null, {url: 'https://web.archive.org/web/*/' + tab.url});
});

chrome.runtime.onInstalled.addListener(function() {
  chrome.declarativeContent.onPageChanged.removeRules(null, function() {
    chrome.declarativeContent.onPageChanged.addRules([
      {
        conditions: [
          new chrome.declarativeContent.PageStateMatcher(
              {pageUrl: {schemes: ['ftp', 'http', 'https']}}),
        ],
        actions: [new chrome.declarativeContent.ShowPageAction()],
      },
    ]);
  });
});