ui/accessibility/extensions/colorenhancer/src/common.js

   1 // Copyright 2015 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 // TODO(wnwen): Move most of these functions to their own page rather than
   6 //     common, which should be shared with content script.
   7
   8 /**
   9  * TODO(wnwen): Remove this and use actual web API.
  10  */
  11 function $(id) {
  12   return document.getElementById(id);
  13 }
  14
  15
  16 /**
  17  * TODO(wnwen): Remove this, it's terrible.
  18  */
  19 function siteFromUrl(url) {
  20   var a = document.createElement('a');
  21   a.href = url;
  22   return a.hostname;
  23 }
  24
  25
  26 /**
  27  * The filter should not apply to these URLs.
  28  *
  29  * @param {string} url The URL to check.
  30  */
  31 function isDisallowedUrl(url) {
  32   return url.indexOf('chrome') == 0 || url.indexOf('about') == 0;
  33 }
  34
  35
  36 /**
  37  * Whether extension is loaded unpacked or from Chrome Webstore.
  38  * @const {boolean}
  39  */
  40 var IS_DEV_MODE = !('update_url' in chrome.runtime.getManifest());
  41
  42
  43 /**
  44  * Easily turn on/off console logs.
  45  *
  46  * @param {*} message The message to potentially pass to {@code console.log}.
  47  */
  48 function debugPrint(str) {
  49   if (IS_DEV_MODE)
  50     console.log(str);
  51 }