| // Copyright 2014 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. |
| |
| #ifndef CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_TRUETYPE_FONT_HOST_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_TRUETYPE_FONT_HOST_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/sequenced_task_runner.h" |
| #include "content/browser/renderer_host/pepper/pepper_truetype_font.h" |
| #include "content/common/content_export.h" |
| #include "ppapi/host/host_message_context.h" |
| #include "ppapi/host/resource_host.h" |
| |
| namespace content { |
| |
| class BrowserPpapiHost; |
| |
| class CONTENT_EXPORT PepperTrueTypeFontHost : public ppapi::host::ResourceHost { |
| public: |
| PepperTrueTypeFontHost(BrowserPpapiHost* host, |
| PP_Instance instance, |
| PP_Resource resource, |
| const ppapi::proxy::SerializedTrueTypeFontDesc& desc); |
| |
| ~PepperTrueTypeFontHost() override; |
| |
| int32_t OnResourceMessageReceived( |
| const IPC::Message& msg, |
| ppapi::host::HostMessageContext* context) override; |
| |
| private: |
| int32_t OnHostMsgGetTableTags(ppapi::host::HostMessageContext* context); |
| int32_t OnHostMsgGetTable(ppapi::host::HostMessageContext* context, |
| uint32_t table, |
| int32_t offset, |
| int32_t max_data_length); |
| |
| void OnInitializeComplete(ppapi::proxy::SerializedTrueTypeFontDesc* desc, |
| int32_t result); |
| void OnGetTableTagsComplete(std::vector<uint32_t>* tags, |
| ppapi::host::ReplyMessageContext reply_context, |
| int32_t result); |
| void OnGetTableComplete(std::string* data, |
| ppapi::host::ReplyMessageContext reply_context, |
| int32_t result); |
| |
| // We use a SequencedTaskRunner to run potentially slow font operations and |
| // ensure that Initialize completes before we make any calls to get font data. |
| // Even though we allow multiple pending GetTableTags and GetTable calls, this |
| // implies that they run serially. |
| scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| |
| scoped_refptr<PepperTrueTypeFont> font_; |
| bool initialize_completed_; |
| |
| base::WeakPtrFactory<PepperTrueTypeFontHost> weak_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(PepperTrueTypeFontHost); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_TRUETYPE_FONT_HOST_H_ |