Merge "Trigger Google Now intent with swipe from bottom" into jb-mr1-aah-dev

core/java/android/view/SimulatedTrackball.java

@@ -16,6 +16,7 @@
 
 package android.view;
 
+import android.content.Intent;
 import android.os.Handler;
 import android.os.Handler.Callback;
 import android.os.Message;
@@ -33,6 +34,8 @@ class SimulatedTrackball {
     // event for it to be considered a tap
     // TODO:Read this value from a configuration file
     private static final int MAX_TAP_TIME = 250;
+    // Where the cutoff is for determining an edge swipe
+    private static final float EDGE_SWIPE_THRESHOLD = 0.9f;
     private static final int FLICK_MSG_ID = 313;
 
     // The position of the previous touchpad event
@@ -47,6 +50,8 @@ class SimulatedTrackball {
     private long mLastTouchPadKeySendTimeMs = 0;
     // When the most recent touch event of any type occurred
     private long mLastTouchPadEventTimeMs = 0;
+    // Did the swipe begin in a valid region
+    private boolean mEdgeSwipePossible;
 
     // How quickly keys were sent;
     private int mKeySendRateMs = 0;
@@ -131,8 +136,14 @@ class SimulatedTrackball {
                 mAccumulatedY = 0;
                 mLastMoveX = 0;
                 mLastMoveY = 0;
+                if (event.getDevice().getMotionRange(MotionEvent.AXIS_Y).getMax()
+                        * EDGE_SWIPE_THRESHOLD < event.getY()) {
+                    // Did the swipe begin in a valid region
+                    mEdgeSwipePossible = true;
+                }
                 // Clear any flings
                 mHandler.removeMessages(FLICK_MSG_ID);
+
                 break;
             case MotionEvent.ACTION_HOVER_MOVE:
                 // Determine whether the move is slop or an intentional move
@@ -141,7 +152,15 @@ class SimulatedTrackball {
                 if (mTouchSlopSquared < deltaX * deltaX + deltaY * deltaY) {
                     mAlwaysInTapRegion = false;
                 }
-
+                // Checks if the swipe has crossed the midpoint
+                // and if our swipe gesture is complete
+                if (event.getY() < (event.getDevice().getMotionRange(MotionEvent.AXIS_Y).getMax()
+                        * .5) && mEdgeSwipePossible) {
+                    mEdgeSwipePossible = false;
+                    Intent intent = new Intent("android.search.action.GLOBAL_SEARCH");
+                    intent.addCategory("android.intent.category.DEFAULT");
+                    viewroot.mView.getContext().startActivity(intent);
+                }
                 // Find the difference in position between the two most recent
                 // touchpad events
                 mLastMoveX = event.getX() - mLastTouchpadXPosition;
@@ -222,6 +241,7 @@ class SimulatedTrackball {
                         mHandler.sendMessageDelayed(message, mKeySendRateMs);
                     }
                 }
+                mEdgeSwipePossible = false;
                 break;
         }
         // Store touch event position and time