Support sliding pop-up mini-keyboard input

TODO:
- Remove close button on mini-keyboard
- Dismiss mini-keyboard when finger leave the screen while no key is selected

This change also renames some instance variables to have more meaningful name.

Bug: 2959169
Change-Id: I9fd79116a647d7be82415c6e9e7cdaf6edcb2bf6

1 files changed, 19 insertions, 1 deletions

diff --git a/java/src/com/android/inputmethod/latin/PointerTracker.java b/java/src/com/android/inputmethod/latin/PointerTracker.java
index 5b5cbe5cc..cb45e2100 100644
--- a/java/src/com/android/inputmethod/latin/PointerTracker.java
+++ b/java/src/com/android/inputmethod/latin/PointerTracker.java
@@ -61,6 +61,7 @@ public class PointerTracker {
     private int mCurrentKey = NOT_A_KEY;
     private int mStartX;
     private int mStartY;
+    private long mDownTime;
 
     // for move de-bouncing
     private int mLastCodeX;
@@ -144,6 +145,7 @@ public class PointerTracker {
         mCurrentKey = keyIndex;
         mStartX = x;
         mStartY = y;
+        mDownTime = eventTime;
         startMoveDebouncing(x, y);
         startTimeDebouncing(eventTime);
         checkMultiTap(eventTime, keyIndex);
@@ -181,7 +183,19 @@ public class PointerTracker {
                 mHandler.startLongPressTimer(LONGPRESS_TIMEOUT, keyIndex, this);
             }
         } else {
-            mHandler.cancelLongPressTimer();
+            if (mCurrentKey != NOT_A_KEY) {
+                updateTimeDebouncing(eventTime);
+                mCurrentKey = keyIndex;
+                mHandler.cancelLongPressTimer();
+            } else if (isMinorMoveBounce(x, y, keyIndex, mCurrentKey)) {
+                updateTimeDebouncing(eventTime);
+            } else {
+                resetMultiTap();
+                resetTimeDebouncing(eventTime, mCurrentKey);
+                resetMoveDebouncing();
+                mCurrentKey = keyIndex;
+                mHandler.cancelLongPressTimer();
+            }
         }
         /*
          * While time debouncing is in effect, mCurrentKey holds the new key and this tracker
@@ -252,6 +266,10 @@ public class PointerTracker {
         return mLastY;
     }
 
+    public long getDownTime() {
+        return mDownTime;
+    }
+
     // These package scope methods are only for debugging purpose.
     /* package */ int getStartX() {
         return mStartX;