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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 "webkit/common/cursors/webcursor.h" | |
| 6 | |
| 7 #include <X11/Xcursor/Xcursor.h> | |
| 8 #include <X11/Xlib.h> | |
| 9 #include <X11/cursorfont.h> | |
| 10 | |
| 11 #include "base/logging.h" | |
| 12 #include "third_party/WebKit/public/platform/WebCursorInfo.h" | |
| 13 #include "ui/base/cursor/cursor.h" | |
| 14 #include "ui/base/cursor/cursor_loader_x11.h" | |
| 15 #include "ui/base/x/x11_util.h" | |
| 16 | |
| 17 const ui::PlatformCursor WebCursor::GetPlatformCursor() { | |
| 18 if (platform_cursor_) | |
| 19 return platform_cursor_; | |
| 20 | |
| 21 if (custom_data_.size() == 0) | |
| 22 return 0; | |
| 23 | |
| 24 SkBitmap bitmap; | |
| 25 bitmap.setConfig(SkBitmap::kARGB_8888_Config, | |
| 26 custom_size_.width(), custom_size_.height()); | |
| 27 bitmap.allocPixels(); | |
| 28 memcpy(bitmap.getAddr32(0, 0), custom_data_.data(), custom_data_.size()); | |
| 29 gfx::Point hotspot = hotspot_; | |
| 30 ui::ScaleAndRotateCursorBitmapAndHotpoint( | |
| 31 device_scale_factor_, rotation_, &bitmap, &hotspot); | |
| 32 | |
| 33 XcursorImage* image = ui::SkBitmapToXcursorImage(&bitmap, hotspot); | |
| 34 platform_cursor_ = ui::CreateReffedCustomXCursor(image); | |
| 35 return platform_cursor_; | |
| 36 } | |
| 37 | |
| 38 void WebCursor::SetDisplayInfo(const gfx::Display& display) { | |
| 39 if (rotation_ == display.rotation() && | |
| 40 device_scale_factor_ == display.device_scale_factor()) | |
| 41 return; | |
| 42 | |
| 43 device_scale_factor_ = display.device_scale_factor(); | |
| 44 rotation_ = display.rotation(); | |
| 45 if (platform_cursor_) | |
| 46 ui::UnrefCustomXCursor(platform_cursor_); | |
| 47 platform_cursor_ = 0; | |
| 48 // It is not necessary to recreate platform_cursor_ yet, since it will be | |
| 49 // recreated on demand when GetPlatformCursor is called. | |
| 50 } | |
| 51 | |
| 52 void WebCursor::InitPlatformData() { | |
| 53 platform_cursor_ = 0; | |
| 54 device_scale_factor_ = 1.f; | |
| 55 rotation_ = gfx::Display::ROTATE_0; | |
| 56 } | |
| 57 | |
| 58 bool WebCursor::SerializePlatformData(Pickle* pickle) const { | |
| 59 return true; | |
| 60 } | |
| 61 | |
| 62 bool WebCursor::DeserializePlatformData(PickleIterator* iter) { | |
| 63 return true; | |
| 64 } | |
| 65 | |
| 66 bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const { | |
| 67 return true; | |
| 68 } | |
| 69 | |
| 70 void WebCursor::CleanupPlatformData() { | |
| 71 if (platform_cursor_) { | |
| 72 ui::UnrefCustomXCursor(platform_cursor_); | |
| 73 platform_cursor_ = 0; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 void WebCursor::CopyPlatformData(const WebCursor& other) { | |
| 78 if (platform_cursor_) | |
| 79 ui::UnrefCustomXCursor(platform_cursor_); | |
| 80 platform_cursor_ = other.platform_cursor_; | |
| 81 if (platform_cursor_) | |
| 82 ui::RefCustomXCursor(platform_cursor_); | |
| 83 | |
| 84 device_scale_factor_ = other.device_scale_factor_; | |
| 85 } | |
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