gecko/mobile/android/base/gfx/NativePanZoomController.java

107 lines
3.3 KiB
Java

/* -*- 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.GeckoEvent;
import org.mozilla.gecko.GeckoThread;
import org.mozilla.gecko.util.EventDispatcher;
import org.mozilla.gecko.util.GeckoEventListener;
import org.json.JSONObject;
import android.graphics.PointF;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
class NativePanZoomController implements PanZoomController, GeckoEventListener {
private final PanZoomTarget mTarget;
private final EventDispatcher mDispatcher;
private final CallbackRunnable mCallbackRunnable;
NativePanZoomController(PanZoomTarget target, View view, EventDispatcher dispatcher) {
mTarget = target;
mDispatcher = dispatcher;
mCallbackRunnable = new CallbackRunnable();
if (GeckoThread.checkLaunchState(GeckoThread.LaunchState.GeckoRunning)) {
init();
} else {
mDispatcher.registerEventListener("Gecko:Ready", this);
}
}
public void handleMessage(String event, JSONObject message) {
if ("Gecko:Ready".equals(event)) {
mDispatcher.unregisterEventListener("Gecko:Ready", this);
init();
}
}
public boolean onTouchEvent(MotionEvent event) {
GeckoEvent wrapped = GeckoEvent.createMotionEvent(event, true);
handleTouchEvent(wrapped);
return false;
}
public boolean onMotionEvent(MotionEvent event) {
// FIXME implement this
return false;
}
public boolean onKeyEvent(KeyEvent event) {
// FIXME implement this
return false;
}
public PointF getVelocityVector() {
// FIXME implement this
return new PointF(0, 0);
}
public void pageRectUpdated() {
// no-op in APZC, I think
}
public void abortPanning() {
// no-op in APZC, I think
}
public void abortAnimation() {
// no-op in APZC, I think
}
private native void init();
private native void handleTouchEvent(GeckoEvent event);
private native void handleMotionEvent(GeckoEvent event);
private native long runDelayedCallback();
public native void destroy();
public native void notifyDefaultActionPrevented(boolean prevented);
public native boolean getRedrawHint();
public native void setOverScrollMode(int overscrollMode);
public native int getOverScrollMode();
/* Invoked from JNI */
private void requestContentRepaint(float x, float y, float width, float height, float resolution) {
mTarget.forceRedraw(new DisplayPortMetrics(x, y, x + width, y + height, resolution));
}
/* Invoked from JNI */
private void postDelayedCallback(long delay) {
mTarget.postDelayed(mCallbackRunnable, delay);
}
class CallbackRunnable implements Runnable {
@Override
public void run() {
long nextDelay = runDelayedCallback();
if (nextDelay >= 0) {
mTarget.postDelayed(this, nextDelay);
}
}
}
}