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// Copyright (c) 2013 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 "ppapi/proxy/truetype_font_singleton_resource.h"
#include "base/bind.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/serialized_structs.h"
#include "ppapi/shared_impl/array_writer.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/tracked_callback.h"
#include "ppapi/shared_impl/var.h"
#include "ppapi/shared_impl/var_tracker.h"
namespace ppapi {
namespace proxy {
TrueTypeFontSingletonResource::TrueTypeFontSingletonResource(
Connection connection,
PP_Instance instance)
: PluginResource(connection, instance) {
SendCreate(BROWSER, PpapiHostMsg_TrueTypeFontSingleton_Create());
}
TrueTypeFontSingletonResource::~TrueTypeFontSingletonResource() {
}
thunk::PPB_TrueTypeFont_Singleton_API*
TrueTypeFontSingletonResource::AsPPB_TrueTypeFont_Singleton_API() {
return this;
}
int32_t TrueTypeFontSingletonResource::GetFontFamilies(
PP_Instance instance,
const PP_ArrayOutput& output,
const scoped_refptr<TrackedCallback>& callback) {
Call<PpapiPluginMsg_TrueTypeFontSingleton_GetFontFamiliesReply>(BROWSER,
PpapiHostMsg_TrueTypeFontSingleton_GetFontFamilies(),
base::Bind(
&TrueTypeFontSingletonResource::OnPluginMsgGetFontFamiliesComplete,
this, callback, output));
return PP_OK_COMPLETIONPENDING;
}
int32_t TrueTypeFontSingletonResource::GetFontsInFamily(
PP_Instance instance,
PP_Var family,
const PP_ArrayOutput& output,
const scoped_refptr<TrackedCallback>& callback) {
scoped_refptr<StringVar> family_var = StringVar::FromPPVar(family);
const uint32_t kMaxFamilySizeInBytes = 1024;
if (!family_var.get() || family_var->value().size() > kMaxFamilySizeInBytes)
return PP_ERROR_BADARGUMENT;
Call<PpapiPluginMsg_TrueTypeFontSingleton_GetFontsInFamilyReply>(BROWSER,
PpapiHostMsg_TrueTypeFontSingleton_GetFontsInFamily(family_var->value()),
base::Bind(
&TrueTypeFontSingletonResource::OnPluginMsgGetFontsInFamilyComplete,
this, callback, output));
return PP_OK_COMPLETIONPENDING;
}
void TrueTypeFontSingletonResource::OnPluginMsgGetFontFamiliesComplete(
scoped_refptr<TrackedCallback> callback,
PP_ArrayOutput array_output,
const ResourceMessageReplyParams& params,
const std::vector<std::string>& font_families) {
if (!TrackedCallback::IsPending(callback))
return;
// The result code should contain the data size if it's positive.
int32_t result = params.result();
DCHECK((result < 0 && font_families.size() == 0) ||
result == static_cast<int32_t>(font_families.size()));
ArrayWriter output;
output.set_pp_array_output(array_output);
if (output.is_valid()) {
std::vector< scoped_refptr<Var> > font_family_vars;
for (size_t i = 0; i < font_families.size(); i++)
font_family_vars.push_back(
scoped_refptr<Var>(new StringVar(font_families[i])));
output.StoreVarVector(font_family_vars);
} else {
result = PP_ERROR_FAILED;
}
callback->Run(result);
}
void TrueTypeFontSingletonResource::OnPluginMsgGetFontsInFamilyComplete(
scoped_refptr<TrackedCallback> callback,
PP_ArrayOutput array_output,
const ResourceMessageReplyParams& params,
const std::vector<SerializedTrueTypeFontDesc>& fonts) {
if (!TrackedCallback::IsPending(callback))
return;
// The result code should contain the data size if it's positive.
int32_t result = params.result();
DCHECK((result < 0 && fonts.size() == 0) ||
result == static_cast<int32_t>(fonts.size()));
ArrayWriter output;
output.set_pp_array_output(array_output);
if (output.is_valid()) {
// Convert the message data to an array of PP_TrueTypeFontDesc_Dev structs.
// Each desc has an embedded PP_Var containing the family name.
std::vector<PP_TrueTypeFontDesc_Dev> pp_fonts(fonts.size());
for (size_t i = 0; i < fonts.size(); i++)
fonts[i].CopyToPPTrueTypeFontDesc(&pp_fonts[i]);
if (!output.StoreVector(pp_fonts)) {
for (size_t i = 0; i < pp_fonts.size(); i++)
PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(pp_fonts[i].family);
}
} else {
result = PP_ERROR_FAILED;
}
callback->Run(result);
}
} // namespace proxy
} // namespace ppapi
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