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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.statusbar;
import android.util.Slog;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.View;
import com.android.systemui.R;
public class DelegateViewHelper {
private View mDelegateView;
private View mSourceView;
private BaseStatusBar mBar;
private int[] mTempPoint = new int[2];
private float[] mDownPoint = new float[2];
private int mOrientation;
private float mTriggerThreshhold;
public DelegateViewHelper(View sourceView) {
mSourceView = sourceView;
if (mSourceView != null) {
mTriggerThreshhold = mSourceView.getContext().getResources()
.getDimension(R.dimen.navbar_search_up_threshhold);
}
}
public void setDelegateView(View view) {
mDelegateView = view;
}
public void setBar(BaseStatusBar phoneStatusBar) {
mBar = phoneStatusBar;
}
public void setOrientation(int orientation) {
mOrientation = orientation;
}
public boolean onInterceptTouchEvent(MotionEvent event) {
if (mBar.isStatusBarExpanded()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mDownPoint[0] = event.getX();
mDownPoint[1] = event.getY();
break;
}
if (mDelegateView != null) {
if (mDelegateView.getVisibility() != View.VISIBLE && event.getAction() != MotionEvent.ACTION_CANCEL) {
final boolean isVertical = (mOrientation == Surface.ROTATION_90
|| mOrientation == Surface.ROTATION_270);
final int historySize = event.getHistorySize();
for (int k = 0; k < historySize + 1; k++) {
float x = k < historySize ? event.getHistoricalX(k) : event.getX();
float y = k < historySize ? event.getHistoricalY(k) : event.getY();
final float distance = isVertical ? (mDownPoint[0] - x) : (mDownPoint[1] - y);
if (distance > mTriggerThreshhold) {
mBar.showSearchPanel();
break;
}
}
}
mSourceView.getLocationOnScreen(mTempPoint);
float deltaX = mTempPoint[0];
float deltaY = mTempPoint[1];
mDelegateView.getLocationOnScreen(mTempPoint);
deltaX -= mTempPoint[0];
deltaY -= mTempPoint[1];
event.offsetLocation(deltaX, deltaY);
mDelegateView.dispatchTouchEvent(event);
event.offsetLocation(-deltaX, -deltaY);
}
return false;
}
}
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