Allow changing mouse pointer icon for the current context.

Right now, it only supports I-beam on EditText, but further
rules will come in the future.

The png files for the icons are from chromium.

Bug: 24180385
Change-Id: I8de4ec8a5412b4830c08aa232c5083841c5c751c
diff --git a/libs/input/PointerController.h b/libs/input/PointerController.h
index b9e4ce7..308ff12 100644
--- a/libs/input/PointerController.h
+++ b/libs/input/PointerController.h
@@ -19,6 +19,8 @@
 
 #include "SpriteController.h"
 
+#include <map>
+
 #include <ui/DisplayInfo.h>
 #include <input/Input.h>
 #include <inputflinger/PointerControllerInterface.h>
@@ -40,7 +42,6 @@
     SpriteIcon spotAnchor;
 };
 
-
 /*
  * Pointer controller policy interface.
  *
@@ -57,6 +58,7 @@
 
 public:
     virtual void loadPointerResources(PointerResources* outResources) = 0;
+    virtual void loadAdditionalMouseResources(std::map<int, SpriteIcon>* outResources) = 0;
 };
 
 
@@ -93,6 +95,7 @@
             const uint32_t* spotIdToIndex, BitSet32 spotIdBits);
     virtual void clearSpots();
 
+    void updatePointerShape(int iconId);
     void setDisplayViewport(int32_t width, int32_t height, int32_t orientation);
     void setPointerIcon(const SpriteIcon& icon);
     void setInactivityTimeout(InactivityTimeout inactivityTimeout);
@@ -155,6 +158,10 @@
         SpriteIcon pointerIcon;
         bool pointerIconChanged;
 
+        std::map<int, SpriteIcon> additionalMouseResources;
+
+        int32_t requestedPointerShape;
+
         int32_t buttonState;
 
         Vector<Spot*> spots;