ui/views/widget/desktop_aura/desktop_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 "ui/views/widget/desktop_aura/desktop_native_cursor_manager.h"
   6
   7 #include "ui/aura/window_event_dispatcher.h"
   8 #include "ui/aura/window_tree_host.h"
   9 #include "ui/base/cursor/cursor_loader.h"
  10 #include "ui/views/widget/desktop_aura/desktop_cursor_loader_updater.h"
  11
  12 namespace views {
  13
  14 DesktopNativeCursorManager::DesktopNativeCursorManager(
  15     scoped_ptr<DesktopCursorLoaderUpdater> cursor_loader_updater)
  16     : cursor_loader_updater_(cursor_loader_updater.Pass()),
  17       cursor_loader_(ui::CursorLoader::Create()) {
  18   if (cursor_loader_updater_.get())
  19     cursor_loader_updater_->OnCreate(1.0f, cursor_loader_.get());
  20 }
  21
  22 DesktopNativeCursorManager::~DesktopNativeCursorManager() {
  23 }
  24
  25 gfx::NativeCursor DesktopNativeCursorManager::GetInitializedCursor(int type) {
  26   gfx::NativeCursor cursor(type);
  27   cursor_loader_->SetPlatformCursor(&cursor);
  28   return cursor;
  29 }
  30
  31 void DesktopNativeCursorManager::AddHost(aura::WindowTreeHost* host) {
  32   hosts_.insert(host);
  33 }
  34
  35 void DesktopNativeCursorManager::RemoveHost(aura::WindowTreeHost* host) {
  36   hosts_.erase(host);
  37 }
  38
  39 void DesktopNativeCursorManager::SetDisplay(
  40     const gfx::Display& display,
  41     wm::NativeCursorManagerDelegate* delegate) {
  42   cursor_loader_->UnloadAll();
  43   cursor_loader_->set_rotation(display.rotation());
  44   cursor_loader_->set_scale(display.device_scale_factor());
  45
  46   if (cursor_loader_updater_.get())
  47     cursor_loader_updater_->OnDisplayUpdated(display, cursor_loader_.get());
  48
  49   SetCursor(delegate->GetCursor(), delegate);
  50 }
  51
  52 void DesktopNativeCursorManager::SetCursor(
  53     gfx::NativeCursor cursor,
  54     wm::NativeCursorManagerDelegate* delegate) {
  55   gfx::NativeCursor new_cursor = cursor;
  56   cursor_loader_->SetPlatformCursor(&new_cursor);
  57   delegate->CommitCursor(new_cursor);
  58
  59   if (delegate->IsCursorVisible()) {
  60     for (Hosts::const_iterator i = hosts_.begin(); i != hosts_.end(); ++i)
  61       (*i)->SetCursor(new_cursor);
  62   }
  63 }
  64
  65 void DesktopNativeCursorManager::SetVisibility(
  66     bool visible,
  67     wm::NativeCursorManagerDelegate* delegate) {
  68   delegate->CommitVisibility(visible);
  69
  70   if (visible) {
  71     SetCursor(delegate->GetCursor(), delegate);
  72   } else {
  73     gfx::NativeCursor invisible_cursor(ui::kCursorNone);
  74     cursor_loader_->SetPlatformCursor(&invisible_cursor);
  75     for (Hosts::const_iterator i = hosts_.begin(); i != hosts_.end(); ++i)
  76       (*i)->SetCursor(invisible_cursor);
  77   }
  78
  79   for (Hosts::const_iterator i = hosts_.begin(); i != hosts_.end(); ++i)
  80     (*i)->OnCursorVisibilityChanged(visible);
  81 }
  82
  83 void DesktopNativeCursorManager::SetCursorSet(
  84     ui::CursorSetType cursor_set,
  85     wm::NativeCursorManagerDelegate* delegate) {
  86   NOTIMPLEMENTED();
  87 }
  88
  89 void DesktopNativeCursorManager::SetMouseEventsEnabled(
  90     bool enabled,
  91     wm::NativeCursorManagerDelegate* delegate) {
  92   delegate->CommitMouseEventsEnabled(enabled);
  93
  94   // TODO(erg): In the ash version, we set the last mouse location on Env. I'm
  95   // not sure this concept makes sense on the desktop.
  96
  97   SetVisibility(delegate->IsCursorVisible(), delegate);
  98
  99   for (Hosts::const_iterator i = hosts_.begin(); i != hosts_.end(); ++i)
 100     (*i)->dispatcher()->OnMouseEventsEnableStateChanged(enabled);
 101 }
 102
 103 }  // namespace views