pepper_truetype_font_list_host.cc revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d
12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright (c) 2013 The Chromium Authors. All rights reserved. 22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// found in the LICENSE file. 42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/browser/renderer_host/pepper/pepper_truetype_font_list_host.h" 62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <algorithm> 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/safe_numerics.h" 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/threading/sequenced_worker_pool.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/browser/renderer_host/pepper/pepper_truetype_font_list.h" 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "content/common/font_list.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/public/browser/browser_ppapi_host.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/public/browser/browser_thread.h" 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ppapi/host/dispatch_host_message.h" 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ppapi/host/host_message_context.h" 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ppapi/host/resource_message_filter.h" 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ppapi/proxy/ppapi_messages.h" 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace content { 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace { 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Handles the font list request on the blocking pool. 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class FontMessageFilter : public ppapi::host::ResourceMessageFilter { 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FontMessageFilter(); 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // ppapi::host::ResourceMessageFilter implementation. 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual scoped_refptr<base::TaskRunner> OverrideTaskRunnerForMessage( 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg) OVERRIDE; 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual int32_t OnResourceMessageReceived( 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg, 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::HostMessageContext* context) OVERRIDE; 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~FontMessageFilter(); 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Message handlers. 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int32_t OnHostMsgGetFontFamilies(ppapi::host::HostMessageContext* context); 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) int32_t OnHostMsgGetFontsInFamily(ppapi::host::HostMessageContext* context, 42c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const std::string& family); 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(FontMessageFilter); 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)FontMessageFilter::FontMessageFilter() { 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)FontMessageFilter::~FontMessageFilter() { 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_refptr<base::TaskRunner> FontMessageFilter::OverrideTaskRunnerForMessage( 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg) { 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Use the blocking pool to get the font list (currently the only message) 56c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Since getting the font list is non-threadsafe on Linux (for versions of 57c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Pango predating 2013), use a sequenced task runner. 58c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool(); 59c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return pool->GetSequencedTaskRunner( 60c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) pool->GetNamedSequenceToken(kFontListSequenceToken)); 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int32_t FontMessageFilter::OnResourceMessageReceived( 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg, 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::HostMessageContext* context) { 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(FontMessageFilter, msg) 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PPAPI_DISPATCH_HOST_RESOURCE_CALL_0( 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PpapiHostMsg_TrueTypeFontSingleton_GetFontFamilies, 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OnHostMsgGetFontFamilies) 70c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PPAPI_DISPATCH_HOST_RESOURCE_CALL( 71c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PpapiHostMsg_TrueTypeFontSingleton_GetFontsInFamily, 72c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) OnHostMsgGetFontsInFamily) 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) IPC_END_MESSAGE_MAP() 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return PP_ERROR_FAILED; 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int32_t FontMessageFilter::OnHostMsgGetFontFamilies( 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::HostMessageContext* context) { 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // OK to use "slow blocking" version since we're on the blocking pool. 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string> font_families; 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetFontFamilies_SlowBlocking(&font_families); 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Sort the names in case the host platform returns them out of order. 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::sort(font_families.begin(), font_families.end()); 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int32_t result = base::checked_numeric_cast<int32_t>(font_families.size()); 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::ReplyMessageContext reply_context = 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) context->MakeReplyMessageContext(); 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reply_context.params.set_result(result); 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) context->reply_msg = 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PpapiPluginMsg_TrueTypeFontSingleton_GetFontFamiliesReply(font_families); 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return result; 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 94c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)int32_t FontMessageFilter::OnHostMsgGetFontsInFamily( 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi::host::HostMessageContext* context, 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const std::string& family) { 97c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // OK to use "slow blocking" version since we're on the blocking pool. 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<ppapi::proxy::SerializedTrueTypeFontDesc> fonts_in_family; 99c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetFontsInFamily_SlowBlocking(family, &fonts_in_family); 100c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 101c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) int32_t result = base::checked_numeric_cast<int32_t>(fonts_in_family.size()); 102c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi::host::ReplyMessageContext reply_context = 103c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) context->MakeReplyMessageContext(); 104c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) reply_context.params.set_result(result); 105c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) context->reply_msg = 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PpapiPluginMsg_TrueTypeFontSingleton_GetFontsInFamilyReply( 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) fonts_in_family); 108c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return result; 109c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 110c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)PepperTrueTypeFontListHost::PepperTrueTypeFontListHost( 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) BrowserPpapiHost* host, 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PP_Instance instance, 1162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PP_Resource resource) 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : ResourceHost(host->GetPpapiHost(), instance, resource) { 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddFilter(scoped_refptr<ppapi::host::ResourceMessageFilter>( 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) new FontMessageFilter())); 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)PepperTrueTypeFontListHost::~PepperTrueTypeFontListHost() { 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace content 126