mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-13 23:17:57 +00:00
353 lines
9.7 KiB
Java
353 lines
9.7 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;
|
|
|
|
import android.graphics.Matrix;
|
|
import android.graphics.RectF;
|
|
import android.os.Build;
|
|
import android.view.View;
|
|
import android.view.animation.Animation;
|
|
import android.view.animation.AnimationUtils;
|
|
import android.view.animation.Transformation;
|
|
|
|
import java.lang.ref.WeakReference;
|
|
import java.util.WeakHashMap;
|
|
|
|
public class AnimatorProxy {
|
|
private static final WeakHashMap<View, AnimatorProxy> PROXIES =
|
|
new WeakHashMap<View, AnimatorProxy>();
|
|
|
|
private static interface AnimatorProxyImpl {
|
|
public int getScrollX();
|
|
public int getScrollY();
|
|
public void scrollTo(int scrollX, int scrollY);
|
|
|
|
public float getAlpha();
|
|
public void setAlpha(float alpha);
|
|
|
|
public float getTranslationX();
|
|
public void setTranslationX(float translationX);
|
|
|
|
public float getTranslationY();
|
|
public void setTranslationY(float translationY);
|
|
}
|
|
|
|
private AnimatorProxyImpl mImpl;
|
|
|
|
private AnimatorProxy(AnimatorProxyImpl impl) {
|
|
mImpl = impl;
|
|
}
|
|
|
|
public static AnimatorProxy create(View view) {
|
|
AnimatorProxy proxy = PROXIES.get(view);
|
|
boolean needsAnimationProxy = (Build.VERSION.SDK_INT < 11);
|
|
|
|
// If the view's animation proxy has been overridden from somewhere else, we need to
|
|
// create a new AnimatorProxy for the view.
|
|
if (proxy == null || (needsAnimationProxy && proxy.mImpl != view.getAnimation())) {
|
|
AnimatorProxyImpl impl = (needsAnimationProxy ? new AnimatorProxyPreHC(view) :
|
|
new AnimatorProxyPostHC(view));
|
|
|
|
proxy = new AnimatorProxy(impl);
|
|
PROXIES.put(view, proxy);
|
|
}
|
|
|
|
return proxy;
|
|
}
|
|
|
|
public int getScrollX() {
|
|
return mImpl.getScrollX();
|
|
}
|
|
|
|
public int getScrollY() {
|
|
return mImpl.getScrollY();
|
|
}
|
|
|
|
public void scrollTo(int scrollX, int scrollY) {
|
|
mImpl.scrollTo(scrollX, scrollY);
|
|
}
|
|
|
|
public float getAlpha() {
|
|
return mImpl.getAlpha();
|
|
}
|
|
|
|
public void setAlpha(float alpha) {
|
|
mImpl.setAlpha(alpha);
|
|
}
|
|
|
|
public float getTranslationX() {
|
|
return mImpl.getTranslationX();
|
|
}
|
|
|
|
public void setTranslationX(float translationX) {
|
|
mImpl.setTranslationX(translationX);
|
|
}
|
|
|
|
public float getTranslationY() {
|
|
return mImpl.getTranslationY();
|
|
}
|
|
|
|
public void setTranslationY(float translationY) {
|
|
mImpl.setTranslationY(translationY);
|
|
}
|
|
|
|
/*
|
|
* AnimatorProxyPreHC uses the technique used by the NineOldAndroids described here:
|
|
* http://jakewharton.com/advanced-pre-honeycomb-animation/
|
|
*
|
|
* Some of this code is based on Jake Wharton's AnimatorProxy released as part of
|
|
* the NineOldAndroids library under the Apache License 2.0.
|
|
*/
|
|
private static class AnimatorProxyPreHC extends Animation implements AnimatorProxyImpl {
|
|
private WeakReference<View> mViewRef;
|
|
|
|
private final RectF mBefore;
|
|
private final RectF mAfter;
|
|
private final Matrix mTempMatrix;
|
|
|
|
private float mAlpha;
|
|
private float mTranslationX;
|
|
private float mTranslationY;
|
|
|
|
public AnimatorProxyPreHC(View view) {
|
|
mBefore = new RectF();
|
|
mAfter = new RectF();
|
|
mTempMatrix = new Matrix();
|
|
|
|
mAlpha = 1;
|
|
mTranslationX = 0;
|
|
mTranslationY = 0;
|
|
|
|
loadCurrentTransformation(view);
|
|
|
|
setDuration(0);
|
|
setFillAfter(true);
|
|
view.setAnimation(this);
|
|
|
|
mViewRef = new WeakReference<View>(view);
|
|
}
|
|
|
|
private void loadCurrentTransformation(View view) {
|
|
Animation animation = view.getAnimation();
|
|
if (animation == null)
|
|
return;
|
|
|
|
Transformation transformation = new Transformation();
|
|
float[] matrix = new float[9];
|
|
|
|
animation.getTransformation(AnimationUtils.currentAnimationTimeMillis(), transformation);
|
|
transformation.getMatrix().getValues(matrix);
|
|
|
|
mAlpha = transformation.getAlpha();
|
|
mTranslationX = matrix[Matrix.MTRANS_X];
|
|
mTranslationY = matrix[Matrix.MTRANS_Y];
|
|
}
|
|
|
|
private void prepareForUpdate() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
computeRect(mBefore, view);
|
|
}
|
|
|
|
private void computeRect(final RectF r, View view) {
|
|
final float w = view.getWidth();
|
|
final float h = view.getHeight();
|
|
|
|
r.set(0, 0, w, h);
|
|
|
|
final Matrix m = mTempMatrix;
|
|
m.reset();
|
|
transformMatrix(m, view);
|
|
mTempMatrix.mapRect(r);
|
|
|
|
r.offset(view.getLeft(), view.getTop());
|
|
}
|
|
|
|
private void transformMatrix(Matrix m, View view) {
|
|
m.postTranslate(mTranslationX, mTranslationY);
|
|
}
|
|
|
|
private void invalidateAfterUpdate() {
|
|
View view = mViewRef.get();
|
|
if (view == null || view.getParent() == null)
|
|
return;
|
|
|
|
final RectF after = mAfter;
|
|
computeRect(after, view);
|
|
after.union(mBefore);
|
|
|
|
((View)view.getParent()).invalidate(
|
|
(int) Math.floor(after.left),
|
|
(int) Math.floor(after.top),
|
|
(int) Math.ceil(after.right),
|
|
(int) Math.ceil(after.bottom));
|
|
}
|
|
|
|
@Override
|
|
public int getScrollX() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getScrollX();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public int getScrollY() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getScrollY();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void scrollTo(int scrollX, int scrollY) {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.scrollTo(scrollX, scrollY);
|
|
}
|
|
|
|
@Override
|
|
public float getAlpha() {
|
|
return mTranslationX;
|
|
}
|
|
|
|
@Override
|
|
public void setAlpha(float alpha) {
|
|
if (alpha == alpha)
|
|
return;
|
|
|
|
mAlpha = alpha;
|
|
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.invalidate();
|
|
}
|
|
|
|
@Override
|
|
public float getTranslationX() {
|
|
return mTranslationX;
|
|
}
|
|
|
|
@Override
|
|
public void setTranslationX(float translationX) {
|
|
if (mTranslationX == translationX)
|
|
return;
|
|
|
|
prepareForUpdate();
|
|
mTranslationX = translationX;
|
|
invalidateAfterUpdate();
|
|
}
|
|
|
|
@Override
|
|
public float getTranslationY() {
|
|
return mTranslationY;
|
|
}
|
|
|
|
@Override
|
|
public void setTranslationY(float translationY) {
|
|
if (mTranslationY == translationY)
|
|
return;
|
|
|
|
prepareForUpdate();
|
|
mTranslationY = translationY;
|
|
invalidateAfterUpdate();
|
|
}
|
|
|
|
@Override
|
|
protected void applyTransformation(float interpolatedTime, Transformation t) {
|
|
View view = mViewRef.get();
|
|
if (view != null) {
|
|
t.setAlpha(mAlpha);
|
|
transformMatrix(t.getMatrix(), view);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static class AnimatorProxyPostHC implements AnimatorProxyImpl {
|
|
private WeakReference<View> mViewRef;
|
|
|
|
public AnimatorProxyPostHC(View view) {
|
|
mViewRef = new WeakReference<View>(view);
|
|
}
|
|
|
|
@Override
|
|
public int getScrollX() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getScrollX();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public int getScrollY() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getScrollY();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void scrollTo(int scrollX, int scrollY) {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.scrollTo(scrollX, scrollY);
|
|
}
|
|
|
|
@Override
|
|
public float getAlpha() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getAlpha();
|
|
|
|
return 1;
|
|
}
|
|
|
|
@Override
|
|
public void setAlpha(float alpha) {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.setAlpha(alpha);
|
|
}
|
|
|
|
@Override
|
|
public float getTranslationX() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getTranslationX();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void setTranslationX(float translationX) {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.setTranslationX(translationX);
|
|
}
|
|
|
|
@Override
|
|
public float getTranslationY() {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
return view.getTranslationY();
|
|
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void setTranslationY(float translationY) {
|
|
View view = mViewRef.get();
|
|
if (view != null)
|
|
view.setTranslationY(translationY);
|
|
}
|
|
}
|
|
}
|
|
|