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Bug 771099 - Don't send initial touchmove if the users finger hasn't moved far. r=kats

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This commit is contained in:
Wes Johnston 2012-07-10 14:12:53 -07:00
parent e43aed79cb
commit f2e79056a2
1 changed files with 21 additions and 0 deletions
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21
mobile/android/base/GeckoApp.java
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@ -11,7 +11,9 @@ import org.mozilla.gecko.gfx.Layer;
import org.mozilla.gecko.gfx.LayerController;
import org.mozilla.gecko.gfx.LayerView;
import org.mozilla.gecko.gfx.PluginLayer;
import org.mozilla.gecko.gfx.PointUtils;
import org.mozilla.gecko.gfx.SurfaceTextureLayer;
import org.mozilla.gecko.ui.PanZoomController;
import java.io.*;
import java.util.*;
@ -3082,11 +3084,30 @@ abstract public class GeckoApp
layerController.setLayerClient(mLayerClient);
layerController.getView().getTouchEventHandler().setOnTouchListener(new View.OnTouchListener() {
private PointF initialPoint = null;
public boolean onTouch(View view, MotionEvent event) {
if (event == null)
return true;
if (autoHideTabs())
return true;
int action = event.getAction();
PointF point = new PointF(event.getX(), event.getY());
if ((action & MotionEvent.ACTION_MASK) == MotionEvent.ACTION_DOWN) {
initialPoint = point;
}
if (initialPoint != null && (action & MotionEvent.ACTION_MASK) == MotionEvent.ACTION_MOVE) {
if (PointUtils.subtract(point, initialPoint).length() < PanZoomController.PAN_THRESHOLD) {
// Don't send the touchmove event if if the users finger hasn't move far
// Necessary for Google Maps to work correctlly. See bug 771099.
return true;
} else {
initialPoint = null;
}
}
GeckoAppShell.sendEventToGecko(GeckoEvent.createMotionEvent(event));
return true;
}