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      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/root_window.h"
      8 #include "ui/base/cursor/cursor_loader.h"
      9 #include "ui/views/widget/desktop_aura/desktop_cursor_loader_updater.h"
     10 
     11 namespace views {
     12 
     13 DesktopNativeCursorManager::DesktopNativeCursorManager(
     14     aura::RootWindow* window,
     15     scoped_ptr<DesktopCursorLoaderUpdater> cursor_loader_updater)
     16     : root_window_(window),
     17       cursor_loader_updater_(cursor_loader_updater.Pass()),
     18       cursor_loader_(ui::CursorLoader::Create()) {
     19   if (cursor_loader_updater_.get())
     20     cursor_loader_updater_->OnCreate(root_window_, cursor_loader_.get());
     21 }
     22 
     23 DesktopNativeCursorManager::~DesktopNativeCursorManager() {
     24 }
     25 
     26 gfx::NativeCursor DesktopNativeCursorManager::GetInitializedCursor(int type) {
     27   gfx::NativeCursor cursor(type);
     28   cursor_loader_->SetPlatformCursor(&cursor);
     29   return cursor;
     30 }
     31 
     32 void DesktopNativeCursorManager::SetDisplay(
     33     const gfx::Display& display,
     34     views::corewm::NativeCursorManagerDelegate* delegate) {
     35   cursor_loader_->UnloadAll();
     36   cursor_loader_->set_display(display);
     37 
     38   if (cursor_loader_updater_.get())
     39     cursor_loader_updater_->OnDisplayUpdated(display, cursor_loader_.get());
     40 
     41   SetCursor(delegate->GetCurrentCursor(), delegate);
     42 }
     43 
     44 void DesktopNativeCursorManager::SetCursor(
     45     gfx::NativeCursor cursor,
     46     views::corewm::NativeCursorManagerDelegate* delegate) {
     47   gfx::NativeCursor new_cursor = cursor;
     48   cursor_loader_->SetPlatformCursor(&new_cursor);
     49   delegate->CommitCursor(new_cursor);
     50 
     51   if (delegate->GetCurrentVisibility())
     52     root_window_->SetCursor(new_cursor);
     53 }
     54 
     55 void DesktopNativeCursorManager::SetVisibility(
     56     bool visible,
     57     views::corewm::NativeCursorManagerDelegate* delegate) {
     58   delegate->CommitVisibility(visible);
     59 
     60   if (visible) {
     61     SetCursor(delegate->GetCurrentCursor(), delegate);
     62   } else {
     63     gfx::NativeCursor invisible_cursor(ui::kCursorNone);
     64     cursor_loader_->SetPlatformCursor(&invisible_cursor);
     65     root_window_->SetCursor(invisible_cursor);
     66   }
     67 
     68   root_window_->OnCursorVisibilityChanged(visible);
     69 }
     70 
     71 
     72 void DesktopNativeCursorManager::SetScale(
     73     float scale,
     74     views::corewm::NativeCursorManagerDelegate* delegate) {
     75   NOTIMPLEMENTED();
     76 }
     77 
     78 void DesktopNativeCursorManager::SetMouseEventsEnabled(
     79     bool enabled,
     80     views::corewm::NativeCursorManagerDelegate* delegate) {
     81   delegate->CommitMouseEventsEnabled(enabled);
     82 
     83   // TODO(erg): In the ash version, we set the last mouse location on Env. I'm
     84   // not sure this concept makes sense on the desktop.
     85 
     86   SetVisibility(delegate->GetCurrentVisibility(), delegate);
     87 
     88   root_window_->OnMouseEventsEnableStateChanged(enabled);
     89 }
     90 
     91 }  // namespace views
     92