src/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 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 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   return GetHostAt(location)->window();
  76 }
  77
  78 ui::EventSource* EventGeneratorDelegateAura::GetEventSource(
  79     ui::EventTarget* target) {
  80   return static_cast<Window*>(target)->GetHost()->GetEventSource();
  81 }
  82
  83 gfx::Point EventGeneratorDelegateAura::CenterOfTarget(
  84     const ui::EventTarget* target) const {
  85   gfx::Point center =
  86       gfx::Rect(WindowFromTarget(target)->bounds().size()).CenterPoint();
  87   ConvertPointFromTarget(target, &center);
  88   return center;
  89 }
  90
  91 gfx::Point EventGeneratorDelegateAura::CenterOfWindow(
  92     gfx::NativeWindow window) const {
  93   return CenterOfTarget(window);
  94 }
  95
  96 void EventGeneratorDelegateAura::ConvertPointFromTarget(
  97     const ui::EventTarget* event_target,
  98     gfx::Point* point) const {
  99   DCHECK(point);
 100   const Window* target = WindowFromTarget(event_target);
 101   aura::client::ScreenPositionClient* client = GetScreenPositionClient(target);
 102   if (client)
 103     client->ConvertPointToScreen(target, point);
 104   else
 105     aura::Window::ConvertPointToTarget(target, target->GetRootWindow(), point);
 106 }
 107
 108 void EventGeneratorDelegateAura::ConvertPointToTarget(
 109     const ui::EventTarget* event_target,
 110     gfx::Point* point) const {
 111   DCHECK(point);
 112   const Window* target = WindowFromTarget(event_target);
 113   aura::client::ScreenPositionClient* client = GetScreenPositionClient(target);
 114   if (client)
 115     client->ConvertPointFromScreen(target, point);
 116   else
 117     aura::Window::ConvertPointToTarget(target->GetRootWindow(), target, point);
 118 }
 119
 120 void EventGeneratorDelegateAura::ConvertPointFromHost(
 121     const ui::EventTarget* hosted_target,
 122     gfx::Point* point) const {
 123   const Window* window = WindowFromTarget(hosted_target);
 124   window->GetHost()->ConvertPointFromHost(point);
 125 }
 126
 127 }  // namespace test
 128 }  // namespace aura