Never submit: tentative Pepper IME.

ppapi/cpp/input_event.h

Index: ppapi/cpp/input_event.h
diff --git a/ppapi/cpp/input_event.h b/ppapi/cpp/input_event.h
index da92742c3b026bcfe934a2fcdb572520c40c536a..788aa046d8f9afb4d39614242d58ec0a98731d65 100644
--- a/ppapi/cpp/input_event.h
+++ b/ppapi/cpp/input_event.h
@@ -6,6 +6,7 @@
 #define PPAPI_CPP_INPUT_EVENT_H_
 
 #include <string>
+#include <vector>
 
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/cpp/resource.h"
@@ -302,6 +303,46 @@ class KeyboardInputEvent : public InputEvent {
   Var GetCharacterText() const;
 };
 
+class CompositionInputEvent : public InputEvent {
+ public:
+  /// Constructs an is_null() keyboard input event object.
+  CompositionInputEvent();
+
+  /// Constructs a composition input event object from the provided generic
+  /// input event. If the given event is itself is_null() or is not a
+  /// composition input event, the composition object will be is_null().
+  ///
+  /// @param[in] event A generic input event.
+  explicit CompositionInputEvent(const InputEvent& event);
+
+  /// Returns the composition text as a UTF-8 string for the given composition
+  /// event.
+  ///
+  /// @return A string var representing the composition text. For non-
+  /// composition input events the return value will be an undefined var.
+  Var GetText() const;
+
+  /// Returns the segmentation information by a list of indices of
+  /// a UTF-8 string returned by GetText.
+  ///
+  /// @return A vector representing segmentation information. For events other
+  /// than COMPOSITION_UPDATE, it returns an empty vector.
+  std::vector< std::pair<uint32_t, uint32_t> > GetSegments() const;
+
+  /// Returns the index in the array retrieved by GetSegments indicating the
+  /// segment currently under composition.
+  ///
+  /// @return An integer indicating the index of the target segment. When there
+  /// is no active target segment, or the event is not COMPOSITION_UPDATE,
+  /// returns -1.
+  int32_t GetTargetSegment() const;
+
+  /// Returns the selection (caret) position in the current composition text.
+  ///
+  /// @return A pair of integers indicating the selection range.
+  std::pair<uint32_t, uint32_t> GetSelection() const;
+};
+
 }  // namespace pp
 
 #endif  // PPAPI_CPP_INPUT_EVENT_H_