IPC interface for font management.

content/browser/renderer_host/fontmgr_message_filter.cc

Index: content/browser/renderer_host/fontmgr_message_filter.cc
===================================================================
--- content/browser/renderer_host/fontmgr_message_filter.cc	(revision 0)
+++ content/browser/renderer_host/fontmgr_message_filter.cc	(working copy)
@@ -0,0 +1,103 @@
+// Copyright (c) 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.
+
+#include "content/browser/renderer_host/fontmgr_message_filter.h"
+
+#include "content/common/fontmgr_messages.h"
+#include "ipc/ipc_message_macros.h"
+#include "third_party/skia/include/core/SkDataTable.h"
+#include "third_party/skia/include/core/SkStream.h"
+#include "third_party/skia/include/ports/SkRemotableFontMgr.h"
+#include "third_party/skia/include/ports/SkTypeface_win.h"
+
+namespace content {
+
+FontMgrMessageFilter::FontMgrMessageFilter(
+    const skia::RefPtr<SkRemotableFontMgr>& font_manager)
+    : BrowserMessageFilter(FontMsgStart),
+      font_manager_(skia::SharePtr(font_manager.get())) {
+}
+
+bool FontMgrMessageFilter::OnMessageReceived(const IPC::Message& message,
+                                             bool* message_was_ok) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(FontMgrMessageFilter, message, *message_was_ok)
+    IPC_MESSAGE_HANDLER(FontMsg_GetFamilyNames, OnFontMsg_GetFamilyNames)
+    IPC_MESSAGE_HANDLER(FontMsg_GetIndex, OnFontMsg_GetIndex)
+    IPC_MESSAGE_HANDLER(FontMsg_MatchIndexStyle, OnFontMsg_MatchIndexStyle)
+    IPC_MESSAGE_HANDLER(FontMsg_MatchName, OnFontMsg_MatchName)
+    IPC_MESSAGE_HANDLER(FontMsg_MatchNameStyle, OnFontMsg_MatchNameStyle)
+    IPC_MESSAGE_HANDLER(FontMsg_MatchNameStyleCharacter,
+                        OnFontMsg_MatchNameStyleCharacter)
+    IPC_MESSAGE_HANDLER(FontMsg_GetData, OnFontMsg_GetData)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP_EX()
+  return handled;
+}
+
+FontMgrMessageFilter::~FontMgrMessageFilter() {
+}
+
+void FontMgrMessageFilter::OnFontMsg_GetFamilyNames(
+    skia::RefPtr<SkDataTable>* family_names) {
+  *family_names = skia::AdoptRef(font_manager_->getFamilyNames());
+}
+
+void FontMgrMessageFilter::OnFontMsg_GetIndex(
+    int family_index,
+    skia::RefPtr<SkRemotableFontIdentitySet>* styles) {
+  *styles = skia::AdoptRef(font_manager_->getIndex(family_index));
+}
+
+void FontMgrMessageFilter::OnFontMsg_MatchIndexStyle(
+    int family_index,
+    SkFontStyle style,
+    SkFontIdentity* identity) {
+  *identity = font_manager_->matchIndexStyle(family_index, style);
+}
+
+void FontMgrMessageFilter::OnFontMsg_MatchName(
+    IPC::Optional<std::string> family_name_remotable,
+    skia::RefPtr<SkRemotableFontIdentitySet>* styles) {
+  const char* family_name = NULL;
+  if (family_name_remotable)
+    family_name = family_name_remotable->c_str();
+  *styles = skia::AdoptRef(font_manager_->matchName(family_name));
+}
+
+void FontMgrMessageFilter::OnFontMsg_MatchNameStyle(
+    IPC::Optional<std::string> family_name_remotable,
+    SkFontStyle style,
+    SkFontIdentity* identity) {
+  const char* family_name = NULL;
+  if (family_name_remotable)
+    family_name = family_name_remotable->c_str();
+  *identity = font_manager_->matchNameStyle(family_name, style);
+}
+
+void FontMgrMessageFilter::OnFontMsg_MatchNameStyleCharacter(
+    IPC::Optional<std::string> family_name_remotable,
+    SkFontStyle style,
+    IPC::Optional<std::string> bpc47_remotable,
+    SkUnichar character,
+    SkFontIdentity* identity) {
+  const char* family_name = NULL;
+  if (family_name_remotable)
+    family_name = family_name_remotable->c_str();
+  const char* bpc47 = NULL;
+  if (bpc47_remotable)
+    bpc47 = bpc47_remotable->c_str();
+  *identity = font_manager_->matchNameStyleCharacter(family_name,
+                                                     style,
+                                                     bpc47,
+                                                     character);
+}
+
+void FontMgrMessageFilter::OnFontMsg_GetData(
+    uint32_t data_id,
+    skia::RefPtr<SkStreamAsset>* font_data) {
+  *font_data = skia::AdoptRef(font_manager_->getData(data_id));
+}
+
+}  // namespace content