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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.
#ifndef PPAPI_PROXY_BROWSER_FONT_TRUSTED_RESOURCE_H_
#define PPAPI_PROXY_BROWSER_FONT_TRUSTED_RESOURCE_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_stdint.h"
#include "ppapi/proxy/plugin_resource.h"
#include "ppapi/proxy/ppapi_proxy_export.h"
#include "ppapi/shared_impl/ppapi_preferences.h"
#include "ppapi/thunk/ppb_browser_font_trusted_api.h"
class SkCanvas;
namespace WebKit {
class WebFont;
}
namespace ppapi {
namespace proxy {
class PPAPI_PROXY_EXPORT BrowserFontResource_Trusted
: public PluginResource,
public thunk::PPB_BrowserFont_Trusted_API {
public:
BrowserFontResource_Trusted(Connection connection,
PP_Instance instance,
const PP_BrowserFont_Trusted_Description& desc,
const Preferences& prefs);
virtual ~BrowserFontResource_Trusted();
// Validates the parameters in thee description. Can be called on any thread.
static bool IsPPFontDescriptionValid(
const PP_BrowserFont_Trusted_Description& desc);
// Resource override.
virtual ::ppapi::thunk::PPB_BrowserFont_Trusted_API*
AsPPB_BrowserFont_Trusted_API() OVERRIDE;
// PPB_BrowserFont_Trusted_API implementation.
virtual PP_Bool Describe(PP_BrowserFont_Trusted_Description* description,
PP_BrowserFont_Trusted_Metrics* metrics) OVERRIDE;
virtual PP_Bool DrawTextAt(PP_Resource image_data,
const PP_BrowserFont_Trusted_TextRun* text,
const PP_Point* position,
uint32_t color,
const PP_Rect* clip,
PP_Bool image_data_is_opaque) OVERRIDE;
virtual int32_t MeasureText(
const PP_BrowserFont_Trusted_TextRun* text) OVERRIDE;
virtual uint32_t CharacterOffsetForPixel(
const PP_BrowserFont_Trusted_TextRun* text,
int32_t pixel_position) OVERRIDE;
virtual int32_t PixelOffsetForCharacter(
const PP_BrowserFont_Trusted_TextRun* text,
uint32_t char_offset) OVERRIDE;
private:
// Internal version of DrawTextAt that takes a mapped PlatformCanvas.
void DrawTextToCanvas(SkCanvas* destination,
const PP_BrowserFont_Trusted_TextRun& text,
const PP_Point* position,
uint32_t color,
const PP_Rect* clip,
PP_Bool image_data_is_opaque);
private:
scoped_ptr<WebKit::WebFont> font_;
DISALLOW_COPY_AND_ASSIGN(BrowserFontResource_Trusted);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_BROWSER_FONT_TRUSTED_RESOURCE_H_
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