chrome/browser/ui/zoom/zoom_controller_unittest.cc

   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 #include "base/message_loop/message_loop.h"
   6 #include "base/prefs/pref_service.h"
   7 #include "chrome/browser/ui/browser.h"
   8 #include "chrome/browser/ui/browser_finder.h"
   9 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
  10 #include "chrome/test/base/testing_profile.h"
  11 #include "components/ui/zoom/zoom_controller.h"
  12 #include "components/ui/zoom/zoom_observer.h"
  13 #include "content/public/browser/host_zoom_map.h"
  14 #include "content/public/browser/navigation_details.h"
  15 #include "content/public/common/frame_navigate_params.h"
  16 #include "content/public/test/test_renderer_host.h"
  17 #include "content/public/test/test_utils.h"
  18 #include "testing/gmock/include/gmock/gmock.h"
  19 #include "testing/gtest/include/gtest/gtest.h"
  20
  21 using ui_zoom::ZoomController;
  22
  23 bool operator==(const ZoomController::ZoomChangedEventData& lhs,
  24                 const ZoomController::ZoomChangedEventData& rhs) {
  25   return lhs.web_contents == rhs.web_contents &&
  26          lhs.old_zoom_level == rhs.old_zoom_level &&
  27          lhs.new_zoom_level == rhs.new_zoom_level &&
  28          lhs.zoom_mode == rhs.zoom_mode &&
  29          lhs.can_show_bubble == rhs.can_show_bubble;
  30 }
  31
  32 class ZoomChangedWatcher : public ui_zoom::ZoomObserver {
  33  public:
  34   ZoomChangedWatcher(
  35       ZoomController* zoom_controller,
  36       const ZoomController::ZoomChangedEventData& expected_event_data)
  37       : zoom_controller_(zoom_controller),
  38         expected_event_data_(expected_event_data),
  39         message_loop_runner_(new content::MessageLoopRunner) {
  40     zoom_controller_->AddObserver(this);
  41   }
  42   ~ZoomChangedWatcher() override { zoom_controller_->RemoveObserver(this); }
  43
  44   void Wait() { message_loop_runner_->Run(); }
  45
  46   void OnZoomChanged(
  47       const ZoomController::ZoomChangedEventData& event_data) override {
  48     if (event_data == expected_event_data_)
  49       message_loop_runner_->Quit();
  50   }
  51
  52  private:
  53   ZoomController* zoom_controller_;
  54   ZoomController::ZoomChangedEventData expected_event_data_;
  55   scoped_refptr<content::MessageLoopRunner> message_loop_runner_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(ZoomChangedWatcher);
  58 };
  59
  60 class ZoomControllerTest : public ChromeRenderViewHostTestHarness {
  61  public:
  62   void SetUp() override {
  63     ChromeRenderViewHostTestHarness::SetUp();
  64     zoom_controller_.reset(new ZoomController(web_contents()));
  65
  66     // This call is needed so that the RenderViewHost reports being alive. This
  67     // is only important for tests that call ZoomController::SetZoomLevel().
  68     content::RenderViewHostTester::For(rvh())->CreateTestRenderView(
  69         base::string16(), MSG_ROUTING_NONE, MSG_ROUTING_NONE, -1, false);
  70   }
  71
  72   void TearDown() override {
  73     zoom_controller_.reset();
  74     ChromeRenderViewHostTestHarness::TearDown();
  75   }
  76
  77  protected:
  78   scoped_ptr<ZoomController> zoom_controller_;
  79 };
  80
  81 TEST_F(ZoomControllerTest, DidNavigateMainFrame) {
  82   double zoom_level = zoom_controller_->GetZoomLevel();
  83   ZoomController::ZoomChangedEventData zoom_change_data(
  84       web_contents(),
  85       zoom_level,
  86       zoom_level,
  87       ZoomController::ZOOM_MODE_DEFAULT,
  88       false);
  89   ZoomChangedWatcher zoom_change_watcher(zoom_controller_.get(),
  90                                          zoom_change_data);
  91   zoom_controller_->DidNavigateMainFrame(content::LoadCommittedDetails(),
  92                                          content::FrameNavigateParams());
  93   zoom_change_watcher.Wait();
  94 }
  95
  96 TEST_F(ZoomControllerTest, Observe_ZoomController) {
  97   double old_zoom_level = zoom_controller_->GetZoomLevel();
  98   double new_zoom_level = 110.0;
  99
 100   NavigateAndCommit(GURL("about:blank"));
 101
 102   ZoomController::ZoomChangedEventData zoom_change_data1(
 103       web_contents(),
 104       old_zoom_level,
 105       old_zoom_level,
 106       ZoomController::ZOOM_MODE_ISOLATED,
 107       true /* can_show_bubble */);
 108
 109   {
 110     ZoomChangedWatcher zoom_change_watcher1(zoom_controller_.get(),
 111                                             zoom_change_data1);
 112     zoom_controller_->SetZoomMode(ZoomController::ZOOM_MODE_ISOLATED);
 113     zoom_change_watcher1.Wait();
 114   }
 115
 116   ZoomController::ZoomChangedEventData zoom_change_data2(
 117       web_contents(),
 118       old_zoom_level,
 119       new_zoom_level,
 120       ZoomController::ZOOM_MODE_ISOLATED,
 121       true /* can_show_bubble */);
 122
 123   {
 124     ZoomChangedWatcher zoom_change_watcher2(zoom_controller_.get(),
 125                                             zoom_change_data2);
 126     zoom_controller_->SetZoomLevel(new_zoom_level);
 127     zoom_change_watcher2.Wait();
 128   }
 129 }
 130
 131 TEST_F(ZoomControllerTest, ObserveManualZoomCanShowBubble) {
 132   NavigateAndCommit(GURL("about:blank"));
 133   double old_zoom_level = zoom_controller_->GetZoomLevel();
 134   double new_zoom_level1 = old_zoom_level + 0.5;
 135   double new_zoom_level2 = old_zoom_level + 1.0;
 136
 137   zoom_controller_->SetZoomMode(ui_zoom::ZoomController::ZOOM_MODE_MANUAL);
 138   // By default, the zoom controller will send 'true' for can_show_bubble.
 139   ZoomController::ZoomChangedEventData zoom_change_data1(
 140       web_contents(),
 141       old_zoom_level,
 142       new_zoom_level1,
 143       ZoomController::ZOOM_MODE_MANUAL,
 144       true /* can_show_bubble */);
 145   {
 146     ZoomChangedWatcher zoom_change_watcher1(zoom_controller_.get(),
 147                                             zoom_change_data1);
 148     zoom_controller_->SetZoomLevel(new_zoom_level1);
 149     zoom_change_watcher1.Wait();
 150   }
 151
 152   // Override default and verify the subsequent event reflects this change.
 153   zoom_controller_->SetShowsNotificationBubble(false);
 154   ZoomController::ZoomChangedEventData zoom_change_data2(
 155       web_contents(),
 156       new_zoom_level1,
 157       new_zoom_level2,
 158       ZoomController::ZOOM_MODE_MANUAL,
 159       false /* can_show_bubble */);
 160   {
 161     ZoomChangedWatcher zoom_change_watcher2(zoom_controller_.get(),
 162                                             zoom_change_data2);
 163     zoom_controller_->SetZoomLevel(new_zoom_level2);
 164     zoom_change_watcher2.Wait();
 165   }
 166
 167 }