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/mirror_window_controller.h"
   8 #include "ash/shell.h"
   9 #include "ash/wm/image_cursors.h"
  10 #include "base/logging.h"
  11 #include "ui/aura/env.h"
  12 #include "ui/aura/root_window.h"
  13 #include "ui/base/cursor/cursor.h"
  14
  15 namespace ash {
  16 namespace  {
  17
  18 void SetCursorOnAllRootWindows(gfx::NativeCursor cursor) {
  19   Shell::RootWindowList root_windows =
  20       Shell::GetInstance()->GetAllRootWindows();
  21   for (Shell::RootWindowList::iterator iter = root_windows.begin();
  22        iter != root_windows.end(); ++iter)
  23     (*iter)->SetCursor(cursor);
  24 #if defined(OS_CHROMEOS)
  25   Shell::GetInstance()->mirror_window_controller()->SetMirroredCursor(cursor);
  26 #endif
  27 }
  28
  29 void NotifyCursorVisibilityChange(bool visible) {
  30   Shell::RootWindowList root_windows =
  31       Shell::GetInstance()->GetAllRootWindows();
  32   for (Shell::RootWindowList::iterator iter = root_windows.begin();
  33        iter != root_windows.end(); ++iter)
  34     (*iter)->OnCursorVisibilityChanged(visible);
  35 #if defined(OS_CHROMEOS)
  36   Shell::GetInstance()->mirror_window_controller()->
  37       SetMirroredCursorVisibility(visible);
  38 #endif
  39 }
  40
  41 void NotifyMouseEventsEnableStateChange(bool enabled) {
  42   Shell::RootWindowList root_windows =
  43       Shell::GetInstance()->GetAllRootWindows();
  44   for (Shell::RootWindowList::iterator iter = root_windows.begin();
  45        iter != root_windows.end(); ++iter)
  46     (*iter)->OnMouseEventsEnableStateChanged(enabled);
  47   // Mirror window never process events.
  48 }
  49
  50 }  // namespace
  51
  52 AshNativeCursorManager::AshNativeCursorManager()
  53     : image_cursors_(new ImageCursors) {
  54 }
  55
  56 AshNativeCursorManager::~AshNativeCursorManager() {
  57 }
  58
  59 void AshNativeCursorManager::SetDisplay(
  60     const gfx::Display& display,
  61     views::corewm::NativeCursorManagerDelegate* delegate) {
  62   if (image_cursors_->SetDisplay(display))
  63     SetCursor(delegate->GetCurrentCursor(), delegate);
  64 }
  65
  66 void AshNativeCursorManager::SetCursor(
  67     gfx::NativeCursor cursor,
  68     views::corewm::NativeCursorManagerDelegate* delegate) {
  69   gfx::NativeCursor new_cursor = cursor;
  70   image_cursors_->SetPlatformCursor(&new_cursor);
  71   new_cursor.set_device_scale_factor(
  72       image_cursors_->GetDisplay().device_scale_factor());
  73
  74   delegate->CommitCursor(new_cursor);
  75
  76   if (delegate->GetCurrentVisibility())
  77     SetCursorOnAllRootWindows(new_cursor);
  78 }
  79
  80 void AshNativeCursorManager::SetScale(
  81     float scale,
  82     views::corewm::NativeCursorManagerDelegate* delegate) {
  83   image_cursors_->SetScale(scale);
  84   delegate->CommitScale(scale);
  85
  86   // Sets the cursor to refrect the scale change imidiately.
  87   SetCursor(delegate->GetCurrentCursor(), delegate);
  88 }
  89
  90 void AshNativeCursorManager::SetVisibility(
  91     bool visible,
  92     views::corewm::NativeCursorManagerDelegate* delegate) {
  93   delegate->CommitVisibility(visible);
  94
  95   if (visible) {
  96     SetCursor(delegate->GetCurrentCursor(), delegate);
  97   } else {
  98     gfx::NativeCursor invisible_cursor(ui::kCursorNone);
  99     image_cursors_->SetPlatformCursor(&invisible_cursor);
 100     SetCursorOnAllRootWindows(invisible_cursor);
 101   }
 102
 103   NotifyCursorVisibilityChange(visible);
 104 }
 105
 106 void AshNativeCursorManager::SetMouseEventsEnabled(
 107     bool enabled,
 108     views::corewm::NativeCursorManagerDelegate* delegate) {
 109   delegate->CommitMouseEventsEnabled(enabled);
 110
 111   if (enabled) {
 112     aura::Env::GetInstance()->set_last_mouse_location(
 113         disabled_cursor_location_);
 114   } else {
 115     disabled_cursor_location_ = aura::Env::GetInstance()->last_mouse_location();
 116   }
 117
 118   SetVisibility(delegate->GetCurrentVisibility(), delegate);
 119   NotifyMouseEventsEnableStateChange(enabled);
 120 }
 121
 122 void AshNativeCursorManager::SetCursorResourceModule(
 123     const base::string16& module_name) {
 124   image_cursors_->SetCursorResourceModule(module_name);
 125 }
 126
 127
 128 }  // namespace ash