The Tor Browser / file revision

 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-

  * This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 package org.mozilla.gecko.gfx;

 import org.mozilla.gecko.GeckoAppShell;

 import org.mozilla.gecko.EventDispatcher;

 import android.graphics.PointF;

 import android.view.KeyEvent;

 import android.view.MotionEvent;

 import android.view.View;

 public interface PanZoomController {

     // The distance the user has to pan before we recognize it as such (e.g. to avoid 1-pixel pans

     // between the touch-down and touch-up of a click). In units of density-independent pixels.

     public static final float PAN_THRESHOLD = 1/16f * GeckoAppShell.getDpi();

     // Threshold for sending touch move events to content

     public static final float CLICK_THRESHOLD = 1/50f * GeckoAppShell.getDpi();

     static class Factory {

         static PanZoomController create(PanZoomTarget target, View view, EventDispatcher dispatcher) {

             return new JavaPanZoomController(target, view, dispatcher);

         }

     }

     public void destroy();

     public boolean onTouchEvent(MotionEvent event);

     public boolean onMotionEvent(MotionEvent event);

     public boolean onKeyEvent(KeyEvent event);

     public void notifyDefaultActionPrevented(boolean prevented);

     public boolean getRedrawHint();

     public PointF getVelocityVector();

     public void pageRectUpdated();

     public void abortPanning();

     public void abortAnimation();

     public void setOverScrollMode(int overscrollMode);

     public int getOverScrollMode();

     public void setOverscrollHandler(final Overscroll controller);

 }