PPAPI: Move IMEInputEvent and TextInput to stable.

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 40e1df1c5e58c777465617c9aef3e1a099e4739f..277b524d457e3f357c776b4c569e21b0c243d7d6 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"
@@ -342,7 +343,88 @@ class TouchInputEvent : public InputEvent {
   TouchPoint GetTouchById(PP_TouchListType list, uint32_t id) const;
 };
 
+class IMEInputEvent : public InputEvent {
+ public:
+  /// Constructs an is_null() IME input event object.
+  IMEInputEvent();
+
+  /// Constructs an IME input event object from the provided generic input
+  /// event. If the given event is itself is_null() or is not an IME input
+  /// event, the object will be is_null().
+  ///
+  /// @param[in] event A generic input event.
+  explicit IMEInputEvent(const InputEvent& event);
 
+  /// This constructor manually constructs an IME event from the provided
+  /// parameters.
+  ///
+  /// @param[in] instance The instance for which this event occurred.
+  ///
+  /// @param[in] type A <code>PP_InputEvent_Type</code> identifying the type of
+  /// input event. The type must be one of the ime event types.
+  ///
+  /// @param[in] time_stamp A <code>PP_TimeTicks</code> indicating the time
+  /// when the event occurred.
+  ///
+  /// @param[in] text The string returned by <code>GetText</code>.
+  ///
+  /// @param[in] segment_offsets The array of numbers returned by
+  /// <code>GetSegmentOffset</code>.
+  ///
+  /// @param[in] target_segment The number returned by
+  /// <code>GetTargetSegment</code>.
+  ///
+  /// @param[in] selection The range returned by <code>GetSelection</code>.
+  IMEInputEvent(const InstanceHandle& instance,
+                PP_InputEvent_Type type,
+                PP_TimeTicks time_stamp,
+                const Var& text,
+                const std::vector<uint32_t>& segment_offsets,
+                int32_t target_segment,
+                const std::pair<uint32_t, uint32_t>& selection);
+
+  /// Returns the composition text as a UTF-8 string for the given IME event.
+  ///
+  /// @return A string var representing the composition text. For non-IME
+  /// input events the return value will be an undefined var.
+  Var GetText() const;
+
+  /// Returns the number of segments in the composition text.
+  ///
+  /// @return The number of segments. For events other than COMPOSITION_UPDATE,
+  /// returns 0.
+  uint32_t GetSegmentNumber() const;
+
+  /// Returns the position of the index-th segmentation point in the composition
+  /// text. The position is given by a byte-offset (not a character-offset) of
+  /// the string returned by GetText(). It always satisfies
+  /// 0=GetSegmentOffset(0) < ... < GetSegmentOffset(i) < GetSegmentOffset(i+1)
+  /// < ... < GetSegmentOffset(GetSegmentNumber())=(byte-length of GetText()).
+  /// Note that [GetSegmentOffset(i), GetSegmentOffset(i+1)) represents the
+  /// range of the i-th segment, and hence GetSegmentNumber() can be a valid
+  /// argument to this function instead of an off-by-1 error.
+  ///
+  /// @param[in] ime_event A <code>PP_Resource</code> corresponding to an IME
+  /// event.
+  ///
+  /// @param[in] index An integer indicating a segment.
+  ///
+  /// @return The byte-offset of the segmentation point. If the event is not
+  /// COMPOSITION_UPDATE or index is out of range, returns 0.
+  uint32_t GetSegmentOffset(uint32_t index) const;
+
+  /// Returns the index of the current target segment of 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 range selected by caret in the 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_