content/common/cursors/webcursor_ozone.cc

   1 // Copyright 2014 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 "content/common/cursors/webcursor.h"
   6
   7 #include "third_party/WebKit/public/platform/WebCursorInfo.h"
   8 #include "ui/base/cursor/cursor.h"
   9 #include "ui/base/cursor/cursor_util.h"
  10 #include "ui/base/cursor/ozone/cursor_factory_ozone.h"
  11
  12 namespace content {
  13
  14 const ui::PlatformCursor WebCursor::GetPlatformCursor() {
  15   if (platform_cursor_)
  16     return platform_cursor_;
  17
  18   SkBitmap bitmap;
  19   ImageFromCustomData(&bitmap);
  20   gfx::Point hotspot = hotspot_;
  21   ui::ScaleAndRotateCursorBitmapAndHotpoint(
  22       device_scale_factor_, rotation_, &bitmap, &hotspot);
  23
  24   return ui::CursorFactoryOzone::GetInstance()->CreateImageCursor(bitmap,
  25                                                                   hotspot);
  26 }
  27
  28 void WebCursor::SetDisplayInfo(const gfx::Display& display) {
  29   if (rotation_ == display.rotation() &&
  30       device_scale_factor_ == display.device_scale_factor())
  31     return;
  32
  33   device_scale_factor_ = display.device_scale_factor();
  34   rotation_ = display.rotation();
  35   if (platform_cursor_)
  36     ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_);
  37   platform_cursor_ = NULL;
  38   // It is not necessary to recreate platform_cursor_ yet, since it will be
  39   // recreated on demand when GetPlatformCursor is called.
  40 }
  41
  42 void WebCursor::InitPlatformData() {
  43   platform_cursor_ = NULL;
  44   device_scale_factor_ = 1.f;
  45   rotation_ = gfx::Display::ROTATE_0;
  46 }
  47
  48 bool WebCursor::SerializePlatformData(Pickle* pickle) const {
  49   return true;
  50 }
  51
  52 bool WebCursor::DeserializePlatformData(PickleIterator* iter) {
  53   return true;
  54 }
  55
  56 bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const {
  57   return true;
  58 }
  59
  60 void WebCursor::CleanupPlatformData() {
  61   if (platform_cursor_) {
  62     ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_);
  63     platform_cursor_ = NULL;
  64   }
  65 }
  66
  67 void WebCursor::CopyPlatformData(const WebCursor& other) {
  68   if (platform_cursor_)
  69     ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_);
  70   platform_cursor_ = other.platform_cursor_;
  71   if (platform_cursor_)
  72     ui::CursorFactoryOzone::GetInstance()->RefImageCursor(platform_cursor_);
  73
  74   device_scale_factor_ = other.device_scale_factor_;
  75 }
  76
  77 }  // namespace content