Index: win8/metro_driver/ime/text_service.h |
diff --git a/win8/metro_driver/ime/text_service.h b/win8/metro_driver/ime/text_service.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..fe497ab2655c174740b446ca30d3969b9888211a |
--- /dev/null |
+++ b/win8/metro_driver/ime/text_service.h |
@@ -0,0 +1,53 @@ |
+// Copyright (c) 2013 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 WIN8_METRO_DRIVER_IME_TEXT_SERVICE_H_ |
+#define WIN8_METRO_DRIVER_IME_TEXT_SERVICE_H_ |
+ |
+#include <Windows.h> |
+ |
+#include <vector> |
+ |
+#include "base/basictypes.h" |
+#include "base/memory/scoped_ptr.h" |
+ |
+namespace metro_viewer { |
+struct CharacterBounds; |
+} |
+ |
+namespace metro_driver { |
+ |
+class TextServiceDelegate; |
+ |
+// An interface to manage a virtual text store with which an IME communicates. |
+class TextService { |
+ public: |
+ virtual ~TextService() {} |
+ |
+ // Cancels on-going composition. Does nothing if there is no composition. |
+ virtual void CancelComposition() = 0; |
+ |
+ // Updates document type with |input_scopes| and caret/composition position |
+ // with |character_bounds|. An empty |input_scopes| indicates that IMEs |
+ // should be disabled until non-empty |input_scopes| is specified. |
+ // Note: |input_scopes| is defined as std::vector<int32> here rather than |
+ // std::vector<InputScope> because the wire format of IPC message |
+ // MetroViewerHostMsg_ImeTextInputClientUpdated uses std::vector<int32> to |
+ // avoid dependency on <InputScope.h> header. |
+ virtual void OnDocumentChanged( |
+ const std::vector<int32>& input_scopes, |
+ const std::vector<metro_viewer::CharacterBounds>& character_bounds) = 0; |
+ |
+ // Must be called whenever the attached window gains keyboard focus. |
+ virtual void OnWindowActivated() = 0; |
+}; |
+ |
+// Returns an instance of TextService that works together with |
+// |text_store_delegate| as if it was an text area owned by |window_handle|. |
+scoped_ptr<TextService> |
+CreateTextService(TextServiceDelegate* delegate, HWND window_handle); |
+ |
+} // namespace metro_driver |
+ |
+#endif // WIN8_METRO_DRIVER_IME_TEXT_SERVICE_H_ |