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/*
* Copyright (C) 2017 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.dialershared.bubble;
import android.animation.Animator;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.graphics.Path;
import android.graphics.PointF;
import android.graphics.Rect;
import android.transition.Transition;
import android.transition.TransitionValues;
import android.util.Property;
import android.view.View;
import android.view.ViewGroup;
/** Similar to {@link android.transition.ChangeBounds ChangeBounds} but works across windows */
public class ChangeOnScreenBounds extends Transition {
private static final String PROPNAME_BOUNDS = "bubble:changeScreenBounds:bounds";
private static final String PROPNAME_SCREEN_X = "bubble:changeScreenBounds:screenX";
private static final String PROPNAME_SCREEN_Y = "bubble:changeScreenBounds:screenY";
private static final Property<ViewBounds, PointF> TOP_LEFT_PROPERTY =
new Property<ViewBounds, PointF>(PointF.class, "topLeft") {
@Override
public void set(ViewBounds viewBounds, PointF topLeft) {
viewBounds.setTopLeft(topLeft);
}
@Override
public PointF get(ViewBounds viewBounds) {
return null;
}
};
private static final Property<ViewBounds, PointF> BOTTOM_RIGHT_PROPERTY =
new Property<ViewBounds, PointF>(PointF.class, "bottomRight") {
@Override
public void set(ViewBounds viewBounds, PointF bottomRight) {
viewBounds.setBottomRight(bottomRight);
}
@Override
public PointF get(ViewBounds viewBounds) {
return null;
}
};
private final int[] tempLocation = new int[2];
@Override
public void captureStartValues(TransitionValues transitionValues) {
captureValues(transitionValues);
}
@Override
public void captureEndValues(TransitionValues transitionValues) {
captureValues(transitionValues);
}
private void captureValues(TransitionValues values) {
View view = values.view;
if (view.isLaidOut() || view.getWidth() != 0 || view.getHeight() != 0) {
values.values.put(
PROPNAME_BOUNDS,
new Rect(view.getLeft(), view.getTop(), view.getRight(), view.getBottom()));
values.view.getLocationOnScreen(tempLocation);
values.values.put(PROPNAME_SCREEN_X, tempLocation[0]);
values.values.put(PROPNAME_SCREEN_Y, tempLocation[1]);
}
}
@Override
public Animator createAnimator(
ViewGroup sceneRoot, TransitionValues startValues, TransitionValues endValues) {
Rect startBounds = (Rect) startValues.values.get(PROPNAME_BOUNDS);
// Offset the startBounds by the difference in screen position
int startScreenX = (Integer) startValues.values.get(PROPNAME_SCREEN_X);
int startScreenY = (Integer) startValues.values.get(PROPNAME_SCREEN_Y);
int endScreenX = (Integer) endValues.values.get(PROPNAME_SCREEN_X);
int endScreenY = (Integer) endValues.values.get(PROPNAME_SCREEN_Y);
startBounds.offset(startScreenX - endScreenX, startScreenY - endScreenY);
Rect endBounds = (Rect) endValues.values.get(PROPNAME_BOUNDS);
final int startLeft = startBounds.left;
final int endLeft = endBounds.left;
final int startTop = startBounds.top;
final int endTop = endBounds.top;
final int startRight = startBounds.right;
final int endRight = endBounds.right;
final int startBottom = startBounds.bottom;
final int endBottom = endBounds.bottom;
ViewBounds viewBounds = new ViewBounds(endValues.view);
viewBounds.setTopLeft(new PointF(startLeft, startTop));
viewBounds.setBottomRight(new PointF(startRight, startBottom));
// Animate the top left and bottom right corners along a path
Path topLeftPath = getPathMotion().getPath(startLeft, startTop, endLeft, endTop);
ObjectAnimator topLeftAnimator =
ObjectAnimator.ofObject(viewBounds, TOP_LEFT_PROPERTY, null, topLeftPath);
Path bottomRightPath = getPathMotion().getPath(startRight, startBottom, endRight, endBottom);
ObjectAnimator bottomRightAnimator =
ObjectAnimator.ofObject(viewBounds, BOTTOM_RIGHT_PROPERTY, null, bottomRightPath);
AnimatorSet set = new AnimatorSet();
set.playTogether(topLeftAnimator, bottomRightAnimator);
return set;
}
private static class ViewBounds {
private int left;
private int top;
private int right;
private int bottom;
private final View view;
private int topLeftCalls;
private int bottomRightCalls;
public ViewBounds(View view) {
this.view = view;
}
public void setTopLeft(PointF topLeft) {
left = Math.round(topLeft.x);
top = Math.round(topLeft.y);
topLeftCalls++;
if (topLeftCalls == bottomRightCalls) {
updateLeftTopRightBottom();
}
}
public void setBottomRight(PointF bottomRight) {
right = Math.round(bottomRight.x);
bottom = Math.round(bottomRight.y);
bottomRightCalls++;
if (topLeftCalls == bottomRightCalls) {
updateLeftTopRightBottom();
}
}
private void updateLeftTopRightBottom() {
view.setLeft(left);
view.setTop(top);
view.setRight(right);
view.setBottom(bottom);
topLeftCalls = 0;
bottomRightCalls = 0;
}
}
}
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