| // Copyright 2014 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 "content/common/cursors/webcursor.h" |
| |
| #include "third_party/WebKit/public/platform/WebCursorInfo.h" |
| #include "ui/base/cursor/cursor.h" |
| #include "ui/base/cursor/cursor_util.h" |
| #include "ui/ozone/public/cursor_factory_ozone.h" |
| |
| namespace { |
| const int kDefaultMaxCursorWidth = 64; |
| const int kDefaultMaxCursorHeight = 64; |
| } |
| |
| namespace content { |
| |
| ui::PlatformCursor WebCursor::GetPlatformCursor() { |
| if (platform_cursor_) |
| return platform_cursor_; |
| |
| SkBitmap bitmap; |
| ImageFromCustomData(&bitmap); |
| gfx::Point hotspot = hotspot_; |
| |
| float scale = device_scale_factor_ / custom_scale_; |
| DCHECK_LT(0, maximum_cursor_size_.width()); |
| DCHECK_LT(0, maximum_cursor_size_.height()); |
| scale = std::min( |
| scale, static_cast<float>(maximum_cursor_size_.width()) / bitmap.width()); |
| scale = std::min(scale, static_cast<float>(maximum_cursor_size_.height()) / |
| bitmap.height()); |
| |
| ui::ScaleAndRotateCursorBitmapAndHotpoint(scale, rotation_, &bitmap, |
| &hotspot); |
| |
| platform_cursor_ = ui::CursorFactoryOzone::GetInstance()->CreateImageCursor( |
| bitmap, hotspot, scale); |
| return platform_cursor_; |
| } |
| |
| void WebCursor::SetDisplayInfo(const display::Display& display) { |
| if (rotation_ == display.rotation() && |
| device_scale_factor_ == display.device_scale_factor() && |
| maximum_cursor_size_ == display.maximum_cursor_size()) |
| return; |
| device_scale_factor_ = display.device_scale_factor(); |
| rotation_ = display.rotation(); |
| maximum_cursor_size_ = display.maximum_cursor_size(); |
| // TODO(oshima): Identify if it's possible to remove this check here and move |
| // the kDefaultMaxCursor{Width,Height} constants to a single place. |
| // crbug.com/603512 |
| if (maximum_cursor_size_.width() == 0 || maximum_cursor_size_.height() == 0) |
| maximum_cursor_size_ = |
| gfx::Size(kDefaultMaxCursorWidth, kDefaultMaxCursorHeight); |
| if (platform_cursor_) |
| ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_); |
| platform_cursor_ = NULL; |
| // It is not necessary to recreate platform_cursor_ yet, since it will be |
| // recreated on demand when GetPlatformCursor is called. |
| } |
| |
| void WebCursor::InitPlatformData() { |
| platform_cursor_ = NULL; |
| device_scale_factor_ = 1.f; |
| rotation_ = display::Display::ROTATE_0; |
| maximum_cursor_size_ = |
| gfx::Size(kDefaultMaxCursorWidth, kDefaultMaxCursorHeight); |
| } |
| |
| bool WebCursor::SerializePlatformData(base::Pickle* pickle) const { |
| return true; |
| } |
| |
| bool WebCursor::DeserializePlatformData(base::PickleIterator* iter) { |
| return true; |
| } |
| |
| bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const { |
| return true; |
| } |
| |
| void WebCursor::CleanupPlatformData() { |
| if (platform_cursor_) { |
| ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_); |
| platform_cursor_ = NULL; |
| } |
| } |
| |
| void WebCursor::CopyPlatformData(const WebCursor& other) { |
| if (platform_cursor_) |
| ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_); |
| platform_cursor_ = other.platform_cursor_; |
| if (platform_cursor_) |
| ui::CursorFactoryOzone::GetInstance()->RefImageCursor(platform_cursor_); |
| |
| device_scale_factor_ = other.device_scale_factor_; |
| maximum_cursor_size_ = other.maximum_cursor_size_; |
| } |
| |
| } // namespace content |