Refactoring NTP5: new implementation of TilePage and MostVisitedPage (which now inherits from Thumb…

chrome/browser/resources/ntp_search/mock/mock.js

Index: chrome/browser/resources/ntp_search/mock/mock.js
diff --git a/chrome/browser/resources/ntp_search/mock/mock.js b/chrome/browser/resources/ntp_search/mock/mock.js
new file mode 100644
index 0000000000000000000000000000000000000000..db09b3fde1397ee65cfd64d28739efe7952c851e
--- /dev/null
+++ b/chrome/browser/resources/ntp_search/mock/mock.js
@@ -0,0 +1,190 @@
+// Copyright (c) 2012 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.
+
+// TODO(pedrosimonetti): document how to generate the data pseudo-automatically.
+!/CrOs/.test(navigator.userAgent) && (function() {
+
+  var __chrome__ = chrome;
+  var shouldRegisterData = !!window.chrome && !!window.chrome.send;
+
+  var NO_CALLBACK = 1;
+
+  // Only messages registered in the callback map will be intercepted.
+  var callbackMap = {
+    'metricsHandler:logEventTime': NO_CALLBACK,
+    'metricsHandler:recordInHistogram': NO_CALLBACK,
+    'getApps': 'ntp.getAppsCallback',
+    'getRecentlyClosedTabs': 'ntp.setRecentlyClosedTabs',
+    'getMostVisited': 'ntp.setMostVisitedPages'
+  };
+
+  // TODO(pedrosimonetti): include automatically in the recorded data
+  // TODO(pedrosimonetti): document the special char replacement
+  var mockedThumbnailUrls = [
+    "http---www.wikipedia.org-",
+    "http---www.deviantart.com-",
+    "http---wefunkradio.com-",
+    "http---youtube.com-",

[jeremycho_google, 2012/08/03 20:51:24]

Add www.youtube.com, etc. for the mock recently closed data?

[pedrosimonetti2, 2012/08/03 22:02:39]

The logic behind mocked thumbnails is not that simple because we have to space
special characters and the image file name should be identical to the values
presented here. For this reason, I'm removing the 'www' from the
getRecentlyClosed mock data.

On 2012/08/03 20:51:24, jeremycho wrote:

+    "http---amazon.com-",
+    "http---nytimes.com-",
+    "http---news.ycombinator.com-",
+    "http---cnn.com-",
+    "http---ebay.com-",
+    "http---www.google.com-chrome-intl-en-welcome.html",
+    "https---chrome.google.com-webstore-hl-en"
+  ];
+
+
+  //----------------------------------------------------------------------------
+  // Internals
+  //----------------------------------------------------------------------------
+
+  var dataMap = {};
+  var recordedDataMap = {};
+  var isInitialized = false;
+  var thumbnailUrlList = [];
+
+  function initialize() {
+    if (shouldRegisterData || !namespace('ntp')) {
+      return;
+    }
+    isInitialized = true;
+    namespace('ntp.getThumbnailUrl', mockGetThumbnailUrl);
+  }
+
+  function namespace(str, data) {
+    var ns = str.split('.'), name, object = window;
+    for (var i = 0, l = ns.length; i < l; i++) {
+      name = ns[i];
+      if (data && i == (l - 1)) {
+        object = object[name] = data;
+      } else {
+        object = object[name];
+      }
+    }
+    return object == window ? null : object;
+  }
+
+  function copyArray(arr) {
+    return Array.prototype.slice.call(arr, 0);
+  }
+
+  function interceptCallback(message, callbackNamespace) {
+    var original = namespace(callbackNamespace);
+    namespace(callbackNamespace, function() {
+      recordedDataMap[message] = copyArray(arguments);
+      var result = original.apply(window, arguments);
+      namespace(callbackNamespace, original);
+      return result;
+    });
+  }
+
+  function interceptLoadData() {
+    window.addEventListener('load', function() {
+      recordedDataMap['__loadTimeData__'] = loadTimeData.data_;
+    });
+  }
+
+  function mockGetThumbnailUrl(url) {
+    url = url.replace(/[\:\/\?\=]/g, '-');
+
+    if (thumbnailUrlList.length == 0) {
+      thumbnailUrlList = copyArray(mockedThumbnailUrls);
+    }
+    var mockUrl;
+    var index = thumbnailUrlList.indexOf(url);
+    if (index != -1) {
+      // Remove an element from a particular index.
+      mockUrl = thumbnailUrlList.splice(index, 1);
+    } else {
+      // Remove the first element.
+      mockUrl = thumbnailUrlList.shift();
+    }
+
+    mockUrl = 'mock/images/thumb/' + mockUrl + '.png';
+    return mockUrl;
+  }
+
+  function mockLoadData() {
+    if (loadTimeData) {
+      loadTimeData.data = dataMap['__loadTimeData__'];
+    }
+  }
+
+
+  //----------------------------------------------------------------------------
+  // ChromeMock implementation
+  //----------------------------------------------------------------------------
+
+  ChromeMock = {
+

[jeremycho_google, 2012/08/03 20:51:24]

delete newline

[pedrosimonetti2, 2012/08/03 22:02:39]

Done.

+    mock: function(newDataMap) {
+      if (newDataMap) {
+        dataMap = newDataMap;
+        if (!shouldRegisterData) {
+          mockLoadData();
+        }
+      } else {
+        return recordedDataMap;
+      }
+    },
+
+    send: function() {
+      if (!isInitialized) {
+        initialize();
+      }
+
+      var message = arguments[0];
+      var shouldCallChromeSend = false;
+
+      var data;
+      var callback;
+      var callbackNamespace;
+
+      if (callbackMap.hasOwnProperty(message)) {
+

[jeremycho_google, 2012/08/03 20:51:24]

delete newline

[pedrosimonetti2, 2012/08/03 22:02:39]

Done.

+        callbackNamespace = callbackMap[message];
+
+        if (shouldRegisterData) {
+          if (callbackNamespace !== NO_CALLBACK) {
+            interceptCallback(message, callbackNamespace);
+          }
+        } else {
+          if (dataMap.hasOwnProperty(message)) {
+            data = dataMap[message];
+            callback = namespace(callbackNamespace);
+            setTimeout(function() {
+              callback.apply(window, data);
+            }, 0);
+          } else {
+            if (callbackNamespace !== NO_CALLBACK) {
+              console.warn('No mock registered for message "%s".', message);
+            }
+          }
+        }
+

[jeremycho_google, 2012/08/03 20:51:24]

delete newline

[pedrosimonetti2, 2012/08/03 22:02:39]

Done.

+      } else {
+        shouldCallChromeSend = true;
+        console.warn('No callback data registered for message "%s".', message);
+      }
+
+      shouldCallChromeSend = shouldCallChromeSend || shouldRegisterData;
+      if (shouldCallChromeSend) {
+        if (__chrome__ && __chrome__.send) {
+          __chrome__.send(message);
+        }
+      }
+    },
+  };
+
+  //----------------------------------------------------------------------------
+  // ChromeMock initialization
+  //----------------------------------------------------------------------------
+
+  if (shouldRegisterData) {
+    interceptLoadData();
+  }
+
+  window.chrome = ChromeMock;
+})();