chrome/test/data/extensions/api_test/canvas_2d/background.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 canvas = document.getElementById("my-canvas");
   6 if (canvas) {
   7   if (canvas.getContext) {
   8     context = canvas.getContext("2d");
   9     if (context) {
  10       context.fillStyle = 'red';
  11       context.fillRect(20, 20, 40, 40);
  12       chrome.test.notifyPass();
  13     } else {
  14       chrome.test.notifyFail("unable to getContext('2d')");
  15     }
  16   } else {
  17     chrome.test.notifyFail("canvas.getContext null");
  18   }
  19 } else {
  20   chrome.test.notifyFail("couldn't find element my-canvas");
  21 }