ui/aura/test/event_generator_delegate_aura.cc

   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 #include "ui/aura/test/event_generator_delegate_aura.h"
   6
   7 #include "base/memory/singleton.h"
   8 #include "ui/aura/client/screen_position_client.h"
   9 #include "ui/aura/window_event_dispatcher.h"
  10 #include "ui/aura/window_tree_host.h"
  11
  12 namespace aura {
  13 namespace test {
  14 namespace {
  15
  16 class DefaultEventGeneratorDelegate : public EventGeneratorDelegateAura {
  17  public:
  18   static DefaultEventGeneratorDelegate* GetInstance() {
  19     return base::Singleton<DefaultEventGeneratorDelegate>::get();
  20   }
  21
  22   // EventGeneratorDelegate:
  23   void SetContext(ui::test::EventGenerator* owner,
  24                   gfx::NativeWindow root_window,
  25                   gfx::NativeWindow window) override {
  26     root_window_ = root_window;
  27   }
  28
  29   // EventGeneratorDelegateAura:
  30   WindowTreeHost* GetHostAt(const gfx::Point& point) const override {
  31     return root_window_->GetHost();
  32   }
  33
  34   client::ScreenPositionClient* GetScreenPositionClient(
  35       const aura::Window* window) const override {
  36     return NULL;
  37   }
  38
  39  private:
  40   friend struct base::DefaultSingletonTraits<DefaultEventGeneratorDelegate>;
  41
  42   DefaultEventGeneratorDelegate() : root_window_(NULL) {
  43     DCHECK(!ui::test::EventGenerator::default_delegate);
  44     ui::test::EventGenerator::default_delegate = this;
  45   }
  46
  47   ~DefaultEventGeneratorDelegate() override {
  48     DCHECK_EQ(this, ui::test::EventGenerator::default_delegate);
  49     ui::test::EventGenerator::default_delegate = NULL;
  50   }
  51
  52   Window* root_window_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(DefaultEventGeneratorDelegate);
  55 };
  56
  57 const Window* WindowFromTarget(const ui::EventTarget* event_target) {
  58   return static_cast<const Window*>(event_target);
  59 }
  60
  61 }  // namespace
  62
  63 void InitializeAuraEventGeneratorDelegate() {
  64   DefaultEventGeneratorDelegate::GetInstance();
  65 }
  66
  67 EventGeneratorDelegateAura::EventGeneratorDelegateAura() {
  68 }
  69
  70 EventGeneratorDelegateAura::~EventGeneratorDelegateAura() {
  71 }
  72
  73 ui::EventTarget* EventGeneratorDelegateAura::GetTargetAt(
  74     const gfx::Point& location) {
  75   // TODO(andresantoso): Add support for EventGenerator::targeting_application()
  76   // if needed for Ash.
  77   return GetHostAt(location)->window();
  78 }
  79
  80 ui::EventSource* EventGeneratorDelegateAura::GetEventSource(
  81     ui::EventTarget* target) {
  82   return static_cast<Window*>(target)->GetHost()->GetEventSource();
  83 }
  84
  85 gfx::Point EventGeneratorDelegateAura::CenterOfTarget(
  86     const ui::EventTarget* target) const {
  87   gfx::Point center =
  88       gfx::Rect(WindowFromTarget(target)->bounds().size()).CenterPoint();
  89   ConvertPointFromTarget(target, &center);
  90   return center;
  91 }
  92
  93 gfx::Point EventGeneratorDelegateAura::CenterOfWindow(
  94     gfx::NativeWindow window) const {
  95   return CenterOfTarget(window);
  96 }
  97
  98 void EventGeneratorDelegateAura::ConvertPointFromTarget(
  99     const ui::EventTarget* event_target,
 100     gfx::Point* point) const {
 101   DCHECK(point);
 102   const Window* target = WindowFromTarget(event_target);
 103   aura::client::ScreenPositionClient* client = GetScreenPositionClient(target);
 104   if (client)
 105     client->ConvertPointToScreen(target, point);
 106   else
 107     aura::Window::ConvertPointToTarget(target, target->GetRootWindow(), point);
 108 }
 109
 110 void EventGeneratorDelegateAura::ConvertPointToTarget(
 111     const ui::EventTarget* event_target,
 112     gfx::Point* point) const {
 113   DCHECK(point);
 114   const Window* target = WindowFromTarget(event_target);
 115   aura::client::ScreenPositionClient* client = GetScreenPositionClient(target);
 116   if (client)
 117     client->ConvertPointFromScreen(target, point);
 118   else
 119     aura::Window::ConvertPointToTarget(target->GetRootWindow(), target, point);
 120 }
 121
 122 void EventGeneratorDelegateAura::ConvertPointFromHost(
 123     const ui::EventTarget* hosted_target,
 124     gfx::Point* point) const {
 125   const Window* window = WindowFromTarget(hosted_target);
 126   window->GetHost()->ConvertPointFromHost(point);
 127 }
 128
 129 }  // namespace test
 130 }  // namespace aura