2 files changed, 35 insertions, 0 deletions

diff --git a/libs/input/PointerController.cpp b/libs/input/PointerController.cpp
index 529849e99fb6..212c6a0d2c3c 100644
--- a/libs/input/PointerController.cpp
+++ b/libs/input/PointerController.cpp
@@ -90,6 +90,7 @@ PointerController::PointerController(const sp<PointerControllerPolicyInterface>&
     mLocked.lastFrameUpdatedTime = 0;
 
     mLocked.buttonState = 0;
+    mLocked.iconDetached = false;
 
     mPolicy->loadPointerIcon(&mLocked.pointerIcon);
 
@@ -184,6 +185,10 @@ void PointerController::setPosition(float x, float y) {
 }
 
 void PointerController::setPositionLocked(float x, float y) {
+    if (mLocked.iconDetached) {
+        return;
+    }
+
     float minX, minY, maxX, maxY;
     if (getBoundsLocked(&minX, &minY, &maxX, &maxY)) {
         if (x <= minX) {
@@ -217,6 +222,10 @@ void PointerController::fade(Transition transition) {
     // Remove the inactivity timeout, since we are fading now.
     removeInactivityTimeoutLocked();
 
+    if (mLocked.iconDetached) {
+        return;
+    }
+
     // Start fading.
     if (transition == TRANSITION_IMMEDIATE) {
         mLocked.pointerFadeDirection = 0;
@@ -234,6 +243,10 @@ void PointerController::unfade(Transition transition) {
     // Always reset the inactivity timer.
     resetInactivityTimeoutLocked();
 
+    if (mLocked.iconDetached) {
+        return;
+    }
+
     // Start unfading.
     if (transition == TRANSITION_IMMEDIATE) {
         mLocked.pointerFadeDirection = 0;
@@ -349,6 +362,22 @@ void PointerController::reloadPointerResources() {
     updatePointerLocked();
 }
 
+void PointerController::detachPointerIcon(bool detached) {
+    AutoMutex _l(mLock);
+
+    if (mLocked.iconDetached == detached) {
+        return;
+    }
+
+    mLocked.iconDetached = detached;
+    if (detached) {
+        mLocked.pointerFadeDirection = -1;
+    } else {
+        mLocked.pointerFadeDirection = 1;
+    }
+    startAnimationLocked();
+}
+
 void PointerController::setDisplayViewport(int32_t width, int32_t height, int32_t orientation) {
     AutoMutex _l(mLock);
 
diff --git a/libs/input/PointerController.h b/libs/input/PointerController.h
index 9ba37b338276..c1381f32a37f 100644
--- a/libs/input/PointerController.h
+++ b/libs/input/PointerController.h
@@ -111,6 +111,10 @@ public:
     void setInactivityTimeout(InactivityTimeout inactivityTimeout);
     void reloadPointerResources();
 
+    /* Detach or attach the pointer icon status. When detached, the pointer icon disappears
+     * and the icon location does not change at all. */
+    void detachPointerIcon(bool detached);
+
 private:
     static const size_t MAX_RECYCLED_SPRITES = 12;
     static const size_t MAX_SPOTS = 12;
@@ -180,6 +184,8 @@ private:
 
         int32_t buttonState;
 
+        bool iconDetached;
+
         Vector<Spot*> spots;
         Vector<sp<Sprite> > recycledSprites;
     } mLocked;