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// Copyright (c) 2010 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 "build/build_config.h"
#include "webkit/glue/plugins/pepper_font.h"
#if defined(OS_LINUX)
#include <unistd.h>
#endif
#include "base/logging.h"
#include "third_party/ppapi/c/ppb_font.h"
#include "webkit/glue/plugins/pepper_plugin_module.h"
#include "webkit/glue/webkit_glue.h"
namespace pepper {
namespace {
PP_Resource MatchFontWithFallback(PP_Module module_id,
const PP_FontDescription* description) {
#if defined(OS_LINUX)
PluginModule* module = PluginModule::FromPPModule(module_id);
if (!module)
return 0;
int fd = webkit_glue::MatchFontWithFallback(description->face,
description->weight >= 700,
description->italic,
description->charset);
if (fd == -1)
return 0;
scoped_refptr<Font> font(new Font(module, fd));
return font->GetReference();
#else
// For trusted pepper plugins, this is only needed in Linux since font loading
// on Windows and Mac works through the renderer sandbox.
return false;
#endif
}
bool IsFont(PP_Resource resource) {
return !!Resource::GetAs<Font>(resource);
}
bool GetFontTable(PP_Resource font_id,
uint32_t table,
void* output,
uint32_t* output_length) {
scoped_refptr<Font> font(Resource::GetAs<Font>(font_id));
if (!font.get())
return false;
return font->GetFontTable(table, output, output_length);
}
const PPB_Font ppb_font = {
&MatchFontWithFallback,
&IsFont,
&GetFontTable,
};
} // namespace
Font::Font(PluginModule* module, int fd)
: Resource(module),
fd_(fd) {
}
Font::~Font() {
#if defined (OS_LINUX)
close(fd_);
#endif
}
// static
const PPB_Font* Font::GetInterface() {
return &ppb_font;
}
bool Font::GetFontTable(uint32_t table,
void* output,
uint32_t* output_length) {
#if defined(OS_LINUX)
size_t temp_size = static_cast<size_t>(*output_length);
bool rv = webkit_glue::GetFontTable(
fd_, table, static_cast<uint8_t*>(output), &temp_size);
*output_length = static_cast<uint32_t>(temp_size);
return rv;
#else
return false;
#endif
}
} // namespace pepper
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