public override bool dispatchTouchEvent(android.view.MotionEvent ev)
{
if (mDefaultTouchRecepient == null)
{
return(base.dispatchTouchEvent(ev));
}
if (base.dispatchTouchEvent(ev))
{
return(true);
}
mTempRect.set(0, 0, 0, 0);
offsetRectIntoDescendantCoords(mDefaultTouchRecepient, mTempRect);
ev.setLocation(ev.getX() + mTempRect.left, ev.getY() + mTempRect.top);
return(mDefaultTouchRecepient.dispatchTouchEvent(ev));
}
public virtual bool onTouch(android.view.View v, android.view.MotionEvent @event)
{
int action = @event.getAction();
if (@event.getPointerCount() > 1)
{
// ZoomButtonsController doesn't handle mutitouch. Give up control.
return(false);
}
if (mReleaseTouchListenerOnUp)
{
// The controls were dismissed but we need to throw away all events until the up
if (action == android.view.MotionEvent.ACTION_UP || action == android.view.MotionEvent
.ACTION_CANCEL)
{
mOwnerView.setOnTouchListener(null);
setTouchTargetView(null);
mReleaseTouchListenerOnUp = false;
}
// Eat this event
return(true);
}
dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT);
android.view.View targetView = mTouchTargetView;
switch (action)
{
case android.view.MotionEvent.ACTION_DOWN:
{
targetView = findViewForTouch((int)@event.getRawX(), (int)@event.getRawY());
setTouchTargetView(targetView);
break;
}
case android.view.MotionEvent.ACTION_UP:
case android.view.MotionEvent.ACTION_CANCEL:
{
setTouchTargetView(null);
break;
}
}
if (targetView != null)
{
// The upperleft corner of the target view in raw coordinates
int targetViewRawX = mContainerRawLocation[0] + mTouchTargetWindowLocation[0];
int targetViewRawY = mContainerRawLocation[1] + mTouchTargetWindowLocation[1];
android.view.MotionEvent containerEvent = android.view.MotionEvent.obtain(@event);
// Convert the motion event into the target view's coordinates (from
// owner view's coordinates)
containerEvent.offsetLocation(mOwnerViewRawLocation[0] - targetViewRawX, mOwnerViewRawLocation
[1] - targetViewRawY);
// These are floats because we need to potentially offset away this exact amount
float containerX = containerEvent.getX();
float containerY = containerEvent.getY();
if (containerX < 0 && containerX > -ZOOM_CONTROLS_TOUCH_PADDING)
{
containerEvent.offsetLocation(-containerX, 0);
}
if (containerY < 0 && containerY > -ZOOM_CONTROLS_TOUCH_PADDING)
{
containerEvent.offsetLocation(0, -containerY);
}
bool retValue = targetView.dispatchTouchEvent(containerEvent);
containerEvent.recycle();
return(retValue);
}
else
{
return(false);
}
}
/// <summary>
/// Will forward touch events to the delegate view if the event is within the bounds
/// specified in the constructor.
/// </summary>
/// <remarks>
/// Will forward touch events to the delegate view if the event is within the bounds
/// specified in the constructor.
/// </remarks>
/// <param name="event">The touch event to forward</param>
/// <returns>True if the event was forwarded to the delegate, false otherwise.</returns>
public virtual bool onTouchEvent(android.view.MotionEvent @event)
{
int x = (int)@event.getX();
int y = (int)@event.getY();
bool sendToDelegate = false;
bool hit = true;
bool handled = false;
switch (@event.getAction())
{
case android.view.MotionEvent.ACTION_DOWN:
{
android.graphics.Rect bounds = mBounds;
if (bounds.contains(x, y))
{
mDelegateTargeted = true;
sendToDelegate = true;
}
break;
}
case android.view.MotionEvent.ACTION_UP:
case android.view.MotionEvent.ACTION_MOVE:
{
sendToDelegate = mDelegateTargeted;
if (sendToDelegate)
{
android.graphics.Rect slopBounds = mSlopBounds;
if (!slopBounds.contains(x, y))
{
hit = false;
}
}
break;
}
case android.view.MotionEvent.ACTION_CANCEL:
{
sendToDelegate = mDelegateTargeted;
mDelegateTargeted = false;
break;
}
}
if (sendToDelegate)
{
android.view.View delegateView = mDelegateView;
if (hit)
{
// Offset event coordinates to be inside the target view
@event.setLocation(delegateView.getWidth() / 2, delegateView.getHeight() / 2);
}
else
{
// Offset event coordinates to be outside the target view (in case it does
// something like tracking pressed state)
int slop = mSlop;
@event.setLocation(-(slop * 2), -(slop * 2));
}
handled = delegateView.dispatchTouchEvent(@event);
}
return(handled);
}
