chrome/test/data/extensions/api_test/media_galleries/gallerywatch/test.js

   1 // Copyright 2014 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 var galleries;
   6 var invalidGalleryId = '11000';
   7
   8 // chrome.mediaGalleries.getMediaFileSystems callback.
   9 var mediaFileSystemsListCallback = function (results) {
  10   galleries = results;
  11   chrome.test.sendMessage('get_media_file_systems_callback_ok');
  12 };
  13
  14 // Gallery changed event handler.
  15 var onGalleryChangedCallback = function (details) {
  16   chrome.test.sendMessage('gallery_changed_event_received');
  17 };
  18
  19 // Add watch request callback.
  20 var onAddWatchRequestCallback = function (details) {
  21   if (details.success) {
  22     chrome.test.sendMessage('add_watch_request_succeeded');
  23   } else {
  24     chrome.test.sendMessage('add_watch_request_failed');
  25   }
  26 };
  27
  28 // chrome.mediaGalleries.getAllGalleryWatch callback.
  29 var getAllGalleryWatchCallback = function (results) {
  30   if (!results) {
  31     chrome.test.sendMessage('get_all_gallery_watch_failed');
  32     return;
  33   }
  34   if (results.length == 0) {
  35     chrome.test.sendMessage('gallery_watchers_does_not_exists');
  36   } else {
  37     for (var i = 0; i < results.length; ++i) {
  38       var info = chrome.mediaGalleries.getMediaFileSystemMetadata(galleries[i]);
  39       if (results[i] !== info.galleryId) {
  40         chrome.test.sendMessage('gallery_watcher_mismatch');
  41         return;
  42       }
  43     }
  44     chrome.test.sendMessage('gallery_watcher_checks');
  45   }
  46 };
  47
  48 var onGalleryChangedCheckingCallback = function(result) {
  49   if (result.galleryId != '' && result.type == 'contents_changed') {
  50     chrome.test.sendMessage('on_gallery_changed_checking_ok');
  51   }
  52 };
  53
  54
  55 /**
  56  * Generates a callback function which notifies the apitest when the given
  57  * number of runtime errors has occurred.
  58  *
  59  * @param {number} expectedNumCalls The number of calls to this callback to
  60  *     expect.
  61  * @return {function()}
  62  */
  63 var createUnlistenedAddWatchCallback = function(expectedNumCalls) {
  64   var numCalls = 0;
  65   var numErrors = 0;
  66   return function() {
  67     numCalls++;
  68     if (chrome.runtime.lastError) {
  69       numErrors++;
  70     }
  71
  72     if (numCalls == expectedNumCalls && numErrors == expectedNumCalls) {
  73       chrome.test.sendMessage('add_watch_request_runtime_error');
  74     }
  75   };
  76 }
  77
  78 // Helpers to add and remove event listeners.
  79 function addGalleryChangedListener() {
  80   chrome.mediaGalleries.onGalleryChanged.addListener(
  81       onGalleryChangedCallback);
  82   chrome.test.sendMessage('add_gallery_changed_listener_ok');
  83 };
  84
  85 function addCheckingGalleryChangedListener() {
  86   chrome.mediaGalleries.onGalleryChanged.addListener(
  87       onGalleryChangedCheckingCallback);
  88   chrome.test.sendMessage('add_gallery_changed_listener_ok');
  89 };
  90
  91 function setupWatchOnValidGalleries() {
  92   for (var i = 0; i < galleries.length; ++i) {
  93     var info = chrome.mediaGalleries.getMediaFileSystemMetadata(galleries[i]);
  94     chrome.mediaGalleries.addGalleryWatch(info.galleryId,
  95                                           onAddWatchRequestCallback);
  96   }
  97   chrome.test.sendMessage('add_gallery_watch_ok');
  98 };
  99
 100 function setupWatchOnUnlistenedValidGalleries() {
 101   var callback = createUnlistenedAddWatchCallback(galleries.length);
 102   for (var i = 0; i < galleries.length; ++i) {
 103     var info = chrome.mediaGalleries.getMediaFileSystemMetadata(galleries[i]);
 104     chrome.mediaGalleries.addGalleryWatch(info.galleryId, callback);
 105   }
 106 };
 107
 108 function setupWatchOnInvalidGallery() {
 109   chrome.mediaGalleries.addGalleryWatch(invalidGalleryId,
 110                                         onAddWatchRequestCallback);
 111 }
 112
 113 function getMediaFileSystems() {
 114   chrome.mediaGalleries.getMediaFileSystems(mediaFileSystemsListCallback);
 115   chrome.test.sendMessage('get_media_file_systems_ok');
 116 };
 117
 118 function removeGalleryWatch() {
 119   for (var i = 0; i < galleries.length; ++i) {
 120     var info = chrome.mediaGalleries.getMediaFileSystemMetadata(galleries[i]);
 121     chrome.mediaGalleries.removeGalleryWatch(info.galleryId);
 122   }
 123   chrome.test.sendMessage('remove_gallery_watch_ok');
 124 };
 125
 126 function removeGalleryChangedListener() {
 127   chrome.mediaGalleries.onGalleryChanged.removeListener(
 128       onGalleryChangedCallback);
 129   chrome.test.sendMessage('remove_gallery_changed_listener_ok');
 130 };
 131
 132 function getAllWatchedGalleryIds() {
 133   chrome.mediaGalleries.getAllGalleryWatch(getAllGalleryWatchCallback);
 134   chrome.test.sendMessage('get_all_gallery_watch_ok');
 135 };
 136
 137 function removeAllGalleryWatch() {
 138   chrome.mediaGalleries.removeAllGalleryWatch();
 139   chrome.test.sendMessage('remove_all_gallery_watch_ok');
 140 };