chrome/test/data/webui/webview_execute_script_test.js


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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

function createWebview() {
  var webview = document.createElement('webview');
  document.body.appendChild(webview);
  return webview;
}

function testExecuteScriptCode(url) {
  var webview = createWebview();

  var onGetBackgroundExecuted = function(results) {
    chrome.send('testResult', [results.length == 1 && results[0] == 'red']);
  };

  var onSetBackgroundExecuted = function() {
    webview.executeScript({
      code: 'document.body.style.backgroundColor;'
    }, onGetBackgroundExecuted);
  };

  var onLoadStop = function() {
    webview.executeScript({
      code: 'document.body.style.backgroundColor = \'red\';'
    }, onSetBackgroundExecuted);
  };

  webview.addEventListener('loadstop', onLoadStop);
  webview.src = url;
}