Never submit: tentative Pepper IME.

ppapi/c/ppb_input_event.h

Index: ppapi/c/ppb_input_event.h
diff --git a/ppapi/c/ppb_input_event.h b/ppapi/c/ppb_input_event.h
index 8a73279e4ebc51591764733afdd94b3da838d0f6..113135ba560e302a69f5195f0c123fd356508638 100644
--- a/ppapi/c/ppb_input_event.h
+++ b/ppapi/c/ppb_input_event.h
@@ -31,6 +31,10 @@
 #define PPB_KEYBOARD_INPUT_EVENT_INTERFACE \
     PPB_KEYBOARD_INPUT_EVENT_INTERFACE_1_0
 
+#define PPB_COMPOSITION_INPUT_EVENT_INTERFACE_1_0 "PPB_CompositionInputEvent;1.0"
+#define PPB_COMPOSITION_INPUT_EVENT_INTERFACE \
+    PPB_COMPOSITION_INPUT_EVENT_INTERFACE_1_0
+
 /**
  * @file
  * This file defines the Input Event interfaces.
@@ -117,7 +121,31 @@ typedef enum {
    *
    * Register for this event using the PP_INPUTEVENT_CLASS_MOUSE class.
    */
-  PP_INPUTEVENT_TYPE_CONTEXTMENU = 10
+  PP_INPUTEVENT_TYPE_CONTEXTMENU = 10,
+  /**
+   * Notification that an input method composition process has just started.
+   *
+   * Register for this event using the PP_INPUTEVENT_CLASS_IME class.
+   */
+  PP_INPUTEVENT_TYPE_COMPOSITION_START = 11,
+  /**
+   * Notification that the input method composition string is updated.
+   *
+   * Register for this event using the PP_INPUTEVENT_CLASS_IME class.
+   */
+  PP_INPUTEVENT_TYPE_COMPOSITION_UPDATE = 12,
+  /**
+   * Notification that an input method composition process has completed.
+   *
+   * Register for this event using the PP_INPUTEVENT_CLASS_IME class.
+   */
+  PP_INPUTEVENT_TYPE_COMPOSITION_END = 13,
+  /**
+   * Notification that an input method committed a string.
+   *
+   * Register for this event using the PP_INPUTEVENT_CLASS_IME class.
+   */
+  PP_INPUTEVENT_TYPE_IME_TEXT = 14
 } PP_InputEvent_Type;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_InputEvent_Type, 4);
 
@@ -674,6 +702,62 @@ struct PPB_KeyboardInputEvent {
    */
   struct PP_Var (*GetCharacterText)(PP_Resource character_event);
 };
+
+/**
+ * The <code>PPB_CompositionInputEvent</code> interface contains pointers to
+ * several functions related to composition input events.
+ */
+#define PPB_COMPOSITION_INPUT_EVENT_INTERFACE \
+    PPB_COMPOSITION_INPUT_EVENT_INTERFACE_1_0
+
+struct PPB_CompositionInputEvent {
+  /**
+   * IsCompositionInputEvent() determines if a resource is a composition event.
+   *
+   * @param[in] resource A <code>PP_Resource</code> corresponding to an event.
+   *
+   * @return <code>PP_TRUE</code> if the given resource is a valid input event.
+   */
+  PP_Bool (*IsCompositionInputEvent)(PP_Resource resource);
+  /**
+   * GetText() returns the composition text as a UTF-8 string for the given
+   * composition event.
+   *
+   * @param[in] composition_event A <code>PP_Resource</code> corresponding to a
+   * composition event.
+   *
+   * @return A string var representing the composition text. For non-composition
+   * input events the return value will be an undefined var.
+   */
+  struct PP_Var (*GetText)(PP_Resource composition_event);
+  /**
+   * GetTargetSegment() returns the index in the array retrieved by GetSegments
+   * indicating the segment currently under composition.
+   *
+   * @param[in] composition_event A <code>PP_Resource</code> corresponding to a
+   * composition event.
+   *
+   * @return An integer indicating the index of the target segment.
+   * For events other than COMPOSITION_UPDATE, returns 0.
+   */
+  uint32_t (*GetTargetSegment)(PP_Resource composition_event);

[kochi, 2011/09/09 07:58:59]

Could you change this to GetSelectionRange()?
probably the prototype is
void (*GetSelectionRange)(PP_Resource composition_event, uint32_t* start,
uint32_t* end);

+  /**
+   * GetSegments() returns the segmentation information by a list of indices of
+   * a UTF-8 string returned by GetText. For events other than
+   * COMPOSITION_UPDATE, it does nothing.
+   *
+   * @param[in] composition_event A <code>PP_Resource</code> corresponding to a
+   * composition event.
+   *
+   * @param[out] segments A pointer to an array containing the list of indices
+   * of the segmentation.
+   *
+   * @param[out] segments The length of the array <code>segments</code>.
+   */
+  void (*GetSegments)(PP_Resource composition_event,
+                      uint32_t** segments,
+                      uint32_t* size);
+};
 /**
  * @}
  */