ash/wm/ash_native_cursor_manager.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 "ash/wm/ash_native_cursor_manager.h"
   6
   7 #include "ash/display/display_controller.h"
   8 #include "ash/display/mirror_window_controller.h"
   9 #include "ash/shell.h"
  10 #include "ash/wm/image_cursors.h"
  11 #include "base/logging.h"
  12 #include "ui/aura/env.h"
  13 #include "ui/aura/root_window.h"
  14 #include "ui/base/cursor/cursor.h"
  15
  16 namespace ash {
  17 namespace  {
  18
  19 void SetCursorOnAllRootWindows(gfx::NativeCursor cursor) {
  20   aura::Window::Windows root_windows =
  21       Shell::GetInstance()->GetAllRootWindows();
  22   for (aura::Window::Windows::iterator iter = root_windows.begin();
  23        iter != root_windows.end(); ++iter)
  24     (*iter)->GetDispatcher()->SetCursor(cursor);
  25 #if defined(OS_CHROMEOS)
  26   Shell::GetInstance()->display_controller()->
  27       mirror_window_controller()->SetMirroredCursor(cursor);
  28 #endif
  29 }
  30
  31 void NotifyCursorVisibilityChange(bool visible) {
  32   aura::Window::Windows root_windows =
  33       Shell::GetInstance()->GetAllRootWindows();
  34   for (aura::Window::Windows::iterator iter = root_windows.begin();
  35        iter != root_windows.end(); ++iter)
  36     (*iter)->GetDispatcher()->OnCursorVisibilityChanged(visible);
  37 #if defined(OS_CHROMEOS)
  38   Shell::GetInstance()->display_controller()->mirror_window_controller()->
  39       SetMirroredCursorVisibility(visible);
  40 #endif
  41 }
  42
  43 void NotifyMouseEventsEnableStateChange(bool enabled) {
  44   aura::Window::Windows root_windows =
  45       Shell::GetInstance()->GetAllRootWindows();
  46   for (aura::Window::Windows::iterator iter = root_windows.begin();
  47        iter != root_windows.end(); ++iter)
  48     (*iter)->GetDispatcher()->OnMouseEventsEnableStateChanged(enabled);
  49   // Mirror window never process events.
  50 }
  51
  52 }  // namespace
  53
  54 AshNativeCursorManager::AshNativeCursorManager()
  55     : image_cursors_(new ImageCursors) {
  56 }
  57
  58 AshNativeCursorManager::~AshNativeCursorManager() {
  59 }
  60
  61 void AshNativeCursorManager::SetDisplay(
  62     const gfx::Display& display,
  63     views::corewm::NativeCursorManagerDelegate* delegate) {
  64   if (image_cursors_->SetDisplay(display))
  65     SetCursor(delegate->GetCursor(), delegate);
  66 }
  67
  68 void AshNativeCursorManager::SetCursor(
  69     gfx::NativeCursor cursor,
  70     views::corewm::NativeCursorManagerDelegate* delegate) {
  71   gfx::NativeCursor new_cursor = cursor;
  72   image_cursors_->SetPlatformCursor(&new_cursor);
  73   new_cursor.set_device_scale_factor(
  74       image_cursors_->GetDisplay().device_scale_factor());
  75
  76   delegate->CommitCursor(new_cursor);
  77
  78   if (delegate->IsCursorVisible())
  79     SetCursorOnAllRootWindows(new_cursor);
  80 }
  81
  82 void AshNativeCursorManager::SetCursorSet(
  83     ui::CursorSetType cursor_set,
  84     views::corewm::NativeCursorManagerDelegate* delegate) {
  85   image_cursors_->SetCursorSet(cursor_set);
  86   delegate->CommitCursorSet(cursor_set);
  87
  88   // Sets the cursor to reflect the scale change immediately.
  89   if (delegate->IsCursorVisible())
  90     SetCursor(delegate->GetCursor(), delegate);
  91 }
  92
  93 void AshNativeCursorManager::SetScale(
  94     float scale,
  95     views::corewm::NativeCursorManagerDelegate* delegate) {
  96   image_cursors_->SetScale(scale);
  97   delegate->CommitScale(scale);
  98
  99   // Sets the cursor to reflect the scale change immediately.
 100   SetCursor(delegate->GetCursor(), delegate);
 101 }
 102
 103 void AshNativeCursorManager::SetVisibility(
 104     bool visible,
 105     views::corewm::NativeCursorManagerDelegate* delegate) {
 106   delegate->CommitVisibility(visible);
 107
 108   if (visible) {
 109     SetCursor(delegate->GetCursor(), delegate);
 110   } else {
 111     gfx::NativeCursor invisible_cursor(ui::kCursorNone);
 112     image_cursors_->SetPlatformCursor(&invisible_cursor);
 113     SetCursorOnAllRootWindows(invisible_cursor);
 114   }
 115
 116   NotifyCursorVisibilityChange(visible);
 117 }
 118
 119 void AshNativeCursorManager::SetMouseEventsEnabled(
 120     bool enabled,
 121     views::corewm::NativeCursorManagerDelegate* delegate) {
 122   delegate->CommitMouseEventsEnabled(enabled);
 123
 124   if (enabled) {
 125     aura::Env::GetInstance()->set_last_mouse_location(
 126         disabled_cursor_location_);
 127   } else {
 128     disabled_cursor_location_ = aura::Env::GetInstance()->last_mouse_location();
 129   }
 130
 131   SetVisibility(delegate->IsCursorVisible(), delegate);
 132   NotifyMouseEventsEnableStateChange(enabled);
 133 }
 134
 135 }  // namespace ash