Add movement information to PPB_MouseInputEvent.

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 2ad6741e124668991554ee3f653450aae4732fd3..8036a7e58c8ca88b980346e1291062c30d550c5e 100644
--- a/ppapi/c/ppb_input_event.h
+++ b/ppapi/c/ppb_input_event.h
@@ -21,7 +21,8 @@
 #define PPB_INPUT_EVENT_INTERFACE PPB_INPUT_EVENT_INTERFACE_1_0
 
 #define PPB_MOUSE_INPUT_EVENT_INTERFACE_1_0 "PPB_MouseInputEvent;1.0"
-#define PPB_MOUSE_INPUT_EVENT_INTERFACE PPB_MOUSE_INPUT_EVENT_INTERFACE_1_0
+#define PPB_MOUSE_INPUT_EVENT_INTERFACE_1_1 "PPB_MouseInputEvent;1.1"
+#define PPB_MOUSE_INPUT_EVENT_INTERFACE PPB_MOUSE_INPUT_EVENT_INTERFACE_1_1
 
 #define PPB_WHEEL_INPUT_EVENT_INTERFACE_1_0 "PPB_WheelInputEvent;1.0"
 #define PPB_WHEEL_INPUT_EVENT_INTERFACE PPB_WHEEL_INPUT_EVENT_INTERFACE_1_0
@@ -410,6 +411,8 @@ struct PPB_MouseInputEvent {
    * @param[in] mouse_position A <code>Point</code> containing the x and y
    * position of the mouse when the event occurred.
    *
+   * @param[in] mouse_movement The change in position of the mouse.
+   *
    * @return A <code>PP_Resource</code> containing the new mouse input event.
    */
   PP_Resource (*Create)(PP_Instance instance,
@@ -418,7 +421,8 @@ struct PPB_MouseInputEvent {
                         uint32_t modifiers,
                         PP_InputEvent_MouseButton mouse_button,
                         const struct PP_Point* mouse_position,
-                        int32_t click_count);
+                        int32_t click_count,
+                        const struct PP_Point* mouse_movement);
   /**
    * IsMouseInputEvent() determines if a resource is a mouse event.
    *
@@ -441,7 +445,9 @@ struct PPB_MouseInputEvent {
    */
   PP_InputEvent_MouseButton (*GetButton)(PP_Resource mouse_event);
   /**
-   * GetPosition() returns the pixel location of a mouse input event.
+   * GetPosition() returns the pixel location of a mouse input event. When
+   * the cursor lock is enabled, it returns the center of the associated plugin
+   * instance.

[scheib, 2011/08/30 17:44:42]

spec has been moving, we're deciding to report the last mouse cursor position,
not the center.

[yzshen1, 2011/08/30 22:15:55]

Done.

    *
    * @param[in] mouse_event A <code>PP_Resource</code> containing the mouse
    * event.
@@ -455,6 +461,29 @@ struct PPB_MouseInputEvent {
    * TODO(brettw) figure out exactly what this means.
    */
   int32_t (*GetClickCount)(PP_Resource mouse_event);
+  /**
+   * Returns the change in position of the mouse. When the cursor lock is
+   * enabled, although the mouse position doesn't actually change, this function
+   * continues to provide movement information as when the cursor is unlocked.
+   *
+   * @return The change in position of the mouse, relative to the previous
+   * position.
+   */
+  struct PP_Point (*GetMovement)(PP_Resource mouse_event);
+};
+
+struct PPB_MouseInputEvent_1_0 {
+  PP_Resource (*Create)(PP_Instance instance,
+                        PP_InputEvent_Type type,
+                        PP_TimeTicks time_stamp,
+                        uint32_t modifiers,
+                        PP_InputEvent_MouseButton mouse_button,
+                        const struct PP_Point* mouse_position,
+                        int32_t click_count);
+  PP_Bool (*IsMouseInputEvent)(PP_Resource resource);
+  PP_InputEvent_MouseButton (*GetButton)(PP_Resource mouse_event);
+  struct PP_Point (*GetPosition)(PP_Resource mouse_event);
+  int32_t (*GetClickCount)(PP_Resource mouse_event);
 };
 
 /**