pepper_browser_font_singleton_host.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/browser/renderer_host/pepper/pepper_browser_font_singleton_host.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/sequenced_worker_pool.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/common/font_list.h" 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/public/browser/browser_ppapi_host.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/host/dispatch_host_message.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/host/resource_message_filter.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/proxy/ppapi_messages.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace { 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Handles the font list request on the blocking pool. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class FontMessageFilter : public ppapi::host::ResourceMessageFilter { 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FontMessageFilter(); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ppapi::host::ResourceMessageFilter implementation. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual scoped_refptr<base::TaskRunner> OverrideTaskRunnerForMessage( 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const IPC::Message& msg) OVERRIDE; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual int32_t OnResourceMessageReceived( 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const IPC::Message& msg, 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ppapi::host::HostMessageContext* context) OVERRIDE; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~FontMessageFilter(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Message handler. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t OnHostMsgGetFontFamilies(ppapi::host::HostMessageContext* context); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(FontMessageFilter); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FontMessageFilter::FontMessageFilter() { 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FontMessageFilter::~FontMessageFilter() { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)scoped_refptr<base::TaskRunner> FontMessageFilter::OverrideTaskRunnerForMessage( 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const IPC::Message& msg) { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Use the blocking pool to get the font list (currently the only message 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // so we can always just return it). 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return scoped_refptr<base::TaskRunner>(BrowserThread::GetBlockingPool()); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t FontMessageFilter::OnResourceMessageReceived( 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const IPC::Message& msg, 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ppapi::host::HostMessageContext* context) { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(FontMessageFilter, msg) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PPAPI_DISPATCH_HOST_RESOURCE_CALL_0( 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiHostMsg_BrowserFontSingleton_GetFontFamilies, 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnHostMsgGetFontFamilies) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC_END_MESSAGE_MAP() 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_ERROR_FAILED; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t FontMessageFilter::OnHostMsgGetFontFamilies( 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ppapi::host::HostMessageContext* context) { 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // OK to use "slow blocking" version since we're on the blocking pool. 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<base::ListValue> list(GetFontList_SlowBlocking()); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string output; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < list->GetSize(); i++) { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ListValue* cur_font; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!list->GetList(i, &cur_font)) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Each entry is actually a list of (font name, localized name). 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We only care about the regular name. 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string font_name; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!cur_font->GetString(0, &font_name)) 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) continue; 81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 82c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Font names are separated with nulls. We also want an explicit null at 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the end of the string (Pepper strings aren't null terminated so since 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we specify there will be a null, it should actually be in the string). 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) output.append(font_name); 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) output.push_back(0); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) context->reply_msg = 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PpapiPluginMsg_BrowserFontSingleton_GetFontFamiliesReply(output); 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return PP_OK; 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PepperBrowserFontSingletonHost::PepperBrowserFontSingletonHost( 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserPpapiHost* host, 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Instance instance, 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Resource resource) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : ResourceHost(host->GetPpapiHost(), instance, resource) { 101868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) AddFilter(scoped_refptr<ppapi::host::ResourceMessageFilter>( 102868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) new FontMessageFilter())); 103868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)} 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PepperBrowserFontSingletonHost::~PepperBrowserFontSingletonHost() { 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)