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// 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 "webkit/glue/webcursor.h"
#include <X11/Xcursor/Xcursor.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include "base/logging.h"
#include "skia/ext/image_operations.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCursorInfo.h"
#include "ui/base/cursor/cursor.h"
#include "ui/base/x/x11_util.h"
#include "ui/gfx/point_conversions.h"
#include "ui/gfx/size_conversions.h"
const ui::PlatformCursor WebCursor::GetPlatformCursor() {
if (platform_cursor_)
return platform_cursor_;
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config,
custom_size_.width(), custom_size_.height());
bitmap.allocPixels();
memcpy(bitmap.getAddr32(0, 0), custom_data_.data(), custom_data_.size());
gfx::Point hotspot = hotspot_;
if (device_scale_factor_ != custom_scale_) {
float scale = device_scale_factor_ / custom_scale_;
gfx::Size scaled_size =
gfx::ToFlooredSize(gfx::ScaleSize(custom_size_, scale));
bitmap = skia::ImageOperations::Resize(bitmap,
skia::ImageOperations::RESIZE_BETTER,
scaled_size.width(),
scaled_size.height());
hotspot = gfx::ToFlooredPoint(gfx::ScalePoint(hotspot, scale));
}
XcursorImage* image = ui::SkBitmapToXcursorImage(&bitmap, hotspot);
platform_cursor_ = ui::CreateReffedCustomXCursor(image);
return platform_cursor_;
}
void WebCursor::SetDeviceScaleFactor(float scale_factor) {
if (device_scale_factor_ == scale_factor)
return;
device_scale_factor_ = scale_factor;
if (platform_cursor_)
ui::UnrefCustomXCursor(platform_cursor_);
platform_cursor_ = 0;
// 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_ = 0;
device_scale_factor_ = 1.f;
}
bool WebCursor::SerializePlatformData(Pickle* pickle) const {
return true;
}
bool WebCursor::DeserializePlatformData(PickleIterator* iter) {
return true;
}
bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const {
return true;
}
void WebCursor::CleanupPlatformData() {
if (platform_cursor_) {
ui::UnrefCustomXCursor(platform_cursor_);
platform_cursor_ = 0;
}
}
void WebCursor::CopyPlatformData(const WebCursor& other) {
if (platform_cursor_)
ui::UnrefCustomXCursor(platform_cursor_);
platform_cursor_ = other.platform_cursor_;
if (platform_cursor_)
ui::RefCustomXCursor(platform_cursor_);
device_scale_factor_ = other.device_scale_factor_;
}
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