pepper_truetype_font_list_host.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061
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) 95d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/numerics/safe_conversions.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) 47a02191e04bc25c4935f804f2c080ae28663d096dBen MurdochFontMessageFilter::FontMessageFilter() {} 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 49a02191e04bc25c4935f804f2c080ae28663d096dBen MurdochFontMessageFilter::~FontMessageFilter() {} 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_refptr<base::TaskRunner> FontMessageFilter::OverrideTaskRunnerForMessage( 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg) { 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Use the blocking pool to get the font list (currently the only message) 54c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Since getting the font list is non-threadsafe on Linux (for versions of 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Pango predating 2013), use a sequenced task runner. 56c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool(); 57c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return pool->GetSequencedTaskRunner( 58c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) pool->GetNamedSequenceToken(kFontListSequenceToken)); 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int32_t FontMessageFilter::OnResourceMessageReceived( 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPC::Message& msg, 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::HostMessageContext* context) { 64cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PPAPI_BEGIN_MESSAGE_MAP(FontMessageFilter, msg) 65cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PPAPI_DISPATCH_HOST_RESOURCE_CALL_0( 66cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PpapiHostMsg_TrueTypeFontSingleton_GetFontFamilies, 67cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) OnHostMsgGetFontFamilies) 68cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PPAPI_DISPATCH_HOST_RESOURCE_CALL( 69cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PpapiHostMsg_TrueTypeFontSingleton_GetFontsInFamily, 70cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) OnHostMsgGetFontsInFamily) 71cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PPAPI_END_MESSAGE_MAP() 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return PP_ERROR_FAILED; 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int32_t FontMessageFilter::OnHostMsgGetFontFamilies( 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi::host::HostMessageContext* context) { 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // OK to use "slow blocking" version since we're on the blocking pool. 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::vector<std::string> font_families; 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetFontFamilies_SlowBlocking(&font_families); 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Sort the names in case the host platform returns them out of order. 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::sort(font_families.begin(), font_families.end()); 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) context->reply_msg = 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PpapiPluginMsg_TrueTypeFontSingleton_GetFontFamiliesReply(font_families); 855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return base::checked_cast<int32_t>(font_families.size()); 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 88c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)int32_t FontMessageFilter::OnHostMsgGetFontsInFamily( 89c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi::host::HostMessageContext* context, 90c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const std::string& family) { 91c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // OK to use "slow blocking" version since we're on the blocking pool. 92c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<ppapi::proxy::SerializedTrueTypeFontDesc> fonts_in_family; 93c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetFontsInFamily_SlowBlocking(family, &fonts_in_family); 94c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) context->reply_msg = 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PpapiPluginMsg_TrueTypeFontSingleton_GetFontsInFamilyReply( 97c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) fonts_in_family); 985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return base::checked_cast<int32_t>(fonts_in_family.size()); 99c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 100c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 103a02191e04bc25c4935f804f2c080ae28663d096dBen MurdochPepperTrueTypeFontListHost::PepperTrueTypeFontListHost(BrowserPpapiHost* host, 104a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch PP_Instance instance, 105a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch PP_Resource resource) 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : ResourceHost(host->GetPpapiHost(), instance, resource) { 1072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddFilter(scoped_refptr<ppapi::host::ResourceMessageFilter>( 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) new FontMessageFilter())); 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 111a02191e04bc25c4935f804f2c080ae28663d096dBen MurdochPepperTrueTypeFontListHost::~PepperTrueTypeFontListHost() {} 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace content 114