app_shell: Add support for mouse cursors.

ash/wm/image_cursors.cc

Index: ash/wm/image_cursors.cc
diff --git a/ash/wm/image_cursors.cc b/ash/wm/image_cursors.cc
deleted file mode 100644
index 2a41375d19658c8ea9a437a775cf96f8391da808..0000000000000000000000000000000000000000
--- a/ash/wm/image_cursors.cc
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/wm/image_cursors.h"
-
-#include <float.h>
-
-#include "ash/display/display_info.h"
-#include "ash/display/display_manager.h"
-#include "ash/shell.h"
-#include "base/logging.h"
-#include "base/strings/string16.h"
-#include "ui/base/cursor/cursor.h"
-#include "ui/base/cursor/cursor_loader.h"
-#include "ui/base/cursor/cursors_aura.h"
-#include "ui/gfx/display.h"
-#include "ui/gfx/point.h"
-
-namespace ash {
-
-const int kImageCursorIds[] = {
-  ui::kCursorNull,
-  ui::kCursorPointer,
-  ui::kCursorNoDrop,
-  ui::kCursorNotAllowed,
-  ui::kCursorCopy,
-  ui::kCursorHand,
-  ui::kCursorMove,
-  ui::kCursorNorthEastResize,
-  ui::kCursorSouthWestResize,
-  ui::kCursorSouthEastResize,
-  ui::kCursorNorthWestResize,
-  ui::kCursorNorthResize,
-  ui::kCursorSouthResize,
-  ui::kCursorEastResize,
-  ui::kCursorWestResize,
-  ui::kCursorIBeam,
-  ui::kCursorAlias,
-  ui::kCursorCell,
-  ui::kCursorContextMenu,
-  ui::kCursorCross,
-  ui::kCursorHelp,
-  ui::kCursorVerticalText,
-  ui::kCursorZoomIn,
-  ui::kCursorZoomOut,
-  ui::kCursorRowResize,
-  ui::kCursorColumnResize,
-  ui::kCursorEastWestResize,
-  ui::kCursorNorthSouthResize,
-  ui::kCursorNorthEastSouthWestResize,
-  ui::kCursorNorthWestSouthEastResize,
-  ui::kCursorGrab,
-  ui::kCursorGrabbing,
-};
-
-const int kAnimatedCursorIds[] = {
-  ui::kCursorWait,
-  ui::kCursorProgress
-};
-
-ImageCursors::ImageCursors() : cursor_set_(ui::CURSOR_SET_NORMAL) {
-}
-
-ImageCursors::~ImageCursors() {
-}
-
-float ImageCursors::GetScale() const {
-  if (!cursor_loader_) {
-    NOTREACHED();
-    // Returning default on release build as it's not serious enough to crash
-    // even if this ever happens.
-    return 1.0f;
-  }
-  return cursor_loader_->scale();
-}
-
-gfx::Display::Rotation ImageCursors::GetRotation() const {
-  if (!cursor_loader_) {
-    NOTREACHED();
-    // Returning default on release build as it's not serious enough to crash
-    // even if this ever happens.
-    return gfx::Display::ROTATE_0;
-  }
-  return cursor_loader_->rotation();
-}
-
-bool ImageCursors::SetDisplay(const gfx::Display& display) {
-  DCHECK(display.is_valid());
-  // Use the platform's device scale factor instead of display's
-  // that might have been adjusted for UI scale.
-  float scale_factor = Shell::GetInstance()->display_manager()->
-      GetDisplayInfo(display.id()).device_scale_factor();
-
-  if (!cursor_loader_) {
-    cursor_loader_.reset(ui::CursorLoader::Create());
-  } else if (cursor_loader_->rotation() == display.rotation() &&
-             cursor_loader_->scale() == scale_factor) {
-    return false;
-  }
-
-  cursor_loader_->set_rotation(display.rotation());
-  cursor_loader_->set_scale(scale_factor);
-  ReloadCursors();
-  return true;
-}
-
-void ImageCursors::ReloadCursors() {
-  float device_scale_factor = cursor_loader_->scale();
-
-  cursor_loader_->UnloadAll();
-
-  for (size_t i = 0; i < arraysize(kImageCursorIds); ++i) {
-    int resource_id = -1;
-    gfx::Point hot_point;
-    bool success = ui::GetCursorDataFor(cursor_set_,
-                                        kImageCursorIds[i],
-                                        device_scale_factor,
-                                        &resource_id,
-                                        &hot_point);
-    DCHECK(success);
-    cursor_loader_->LoadImageCursor(kImageCursorIds[i], resource_id, hot_point);
-  }
-  for (size_t i = 0; i < arraysize(kAnimatedCursorIds); ++i) {
-    int resource_id = -1;
-    gfx::Point hot_point;
-    bool success = ui::GetAnimatedCursorDataFor(cursor_set_,
-                                                kAnimatedCursorIds[i],
-                                                device_scale_factor,
-                                                &resource_id,
-                                                &hot_point);
-    DCHECK(success);
-    cursor_loader_->LoadAnimatedCursor(kAnimatedCursorIds[i],
-                                       resource_id,
-                                       hot_point,
-                                       ui::kAnimatedCursorFrameDelayMs);
-  }
-}
-
-void ImageCursors::SetCursorSet(ui::CursorSetType cursor_set) {
-  if (cursor_set_ == cursor_set)
-    return;
-
-  cursor_set_ = cursor_set;
-
-  if (cursor_loader_.get())
-    ReloadCursors();
-}
-
-void ImageCursors::SetPlatformCursor(gfx::NativeCursor* cursor) {
-  cursor_loader_->SetPlatformCursor(cursor);
-}
-
-}  // namespace ash