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Refactor onModifiedTouchEvent of LatinKeyboardBaseView 

This change simplifies onModifierTouchEvent to focus on handling
motion event related to a key event.

Other refactoring will follow in order to support multi touch.

Bug: 2910379

Change-Id: I036be64168d951a535600a7910b36bc109f88490
main
Tadashi G. Takaoka 2010-08-24 22:30:43 +09:00
parent e07d6a776a
commit 8b0cb128be
1 changed files with 43 additions and 41 deletions
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84
java/src/com/android/inputmethod/latin/LatinKeyboardBaseView.java
View File

@ -205,7 +205,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
private boolean mAbortKey;
private Key mInvalidatedKey;
private Rect mClipRegion = new Rect(0, 0, 0, 0);
private boolean mPossiblePoly;
private boolean mCancelGestureDetector;
private SwipeTracker mSwipeTracker = new SwipeTracker();
private int mSwipeThreshold;
private boolean mDisambiguateSwipe;
@ -545,7 +545,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
@Override
public boolean onFling(MotionEvent me1, MotionEvent me2,
float velocityX, float velocityY) {
if (mPossiblePoly) return false;
if (mCancelGestureDetector) return false;
final float absX = Math.abs(velocityX);
final float absY = Math.abs(velocityY);
float deltaX = me2.getX() - me1.getX();
@ -1279,46 +1279,10 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
boolean result = false;
final long now = me.getEventTime();
if (pointerCount != mOldPointerCount) {
if (pointerCount == 1) {
// Send a down event for the latest pointer
MotionEvent down = MotionEvent.obtain(now, now, MotionEvent.ACTION_DOWN,
me.getX(), me.getY(), me.getMetaState());
result = onModifiedTouchEvent(down, false);
down.recycle();
// If it's an up action, then deliver the up as well.
if (action == MotionEvent.ACTION_UP) {
result = onModifiedTouchEvent(me, true);
if (pointerCount > 1 && mOldPointerCount > 1) {
// Don't do anything when 2 or more pointers are down and moving.
return true;
}
} else {
// Send an up event for the last pointer
MotionEvent up = MotionEvent.obtain(now, now, MotionEvent.ACTION_UP,
mOldPointerX, mOldPointerY, me.getMetaState());
result = onModifiedTouchEvent(up, true);
up.recycle();
}
} else {
if (pointerCount == 1) {
result = onModifiedTouchEvent(me, false);
mOldPointerX = me.getX();
mOldPointerY = me.getY();
} else {
// Don't do anything when 2 pointers are down and moving.
result = true;
}
}
mOldPointerCount = pointerCount;
return result;
}
private boolean onModifiedTouchEvent(MotionEvent me, boolean possiblePoly) {
int touchX = (int) me.getX() - getPaddingLeft();
int touchY = (int) me.getY() + mVerticalCorrection - getPaddingTop();
final int action = me.getAction();
final long eventTime = me.getEventTime();
int keyIndex = getKeyIndexAndNearbyCodes(touchX, touchY, null);
mPossiblePoly = possiblePoly;
// Track the last few movements to look for spurious swipes.
if (action == MotionEvent.ACTION_DOWN) mSwipeTracker.clear();
@ -1330,6 +1294,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
return true;
}
mCancelGestureDetector = (pointerCount > 1);
if (mGestureDetector.onTouchEvent(me)) {
showPreview(NOT_A_KEY);
mHandler.cancelKeyTimers();
@ -1342,6 +1307,43 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
return true;
}
if (pointerCount != mOldPointerCount) {
if (pointerCount == 1) {
// Send a down event for the latest pointer
MotionEvent down = MotionEvent.obtain(now, now, MotionEvent.ACTION_DOWN,
me.getX(), me.getY(), me.getMetaState());
result = onModifiedTouchEvent(down);
down.recycle();
// If it's an up action, then deliver the up as well.
if (action == MotionEvent.ACTION_UP) {
result = onModifiedTouchEvent(me);
}
} else {
// Send an up event for the last pointer
MotionEvent up = MotionEvent.obtain(now, now, MotionEvent.ACTION_UP,
mOldPointerX, mOldPointerY, me.getMetaState());
result = onModifiedTouchEvent(up);
up.recycle();
}
mOldPointerCount = pointerCount;
} else {
if (pointerCount == 1) {
result = onModifiedTouchEvent(me);
mOldPointerX = me.getX();
mOldPointerY = me.getY();
}
}
return result;
}
private boolean onModifiedTouchEvent(MotionEvent me) {
int touchX = (int) me.getX() - getPaddingLeft();
int touchY = (int) me.getY() + mVerticalCorrection - getPaddingTop();
final int action = me.getAction();
final long eventTime = me.getEventTime();
int keyIndex = getKeyIndexAndNearbyCodes(touchX, touchY, null);
switch (action) {
case MotionEvent.ACTION_DOWN:
mAbortKey = false;