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/*
* Copyright (C) 2020 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.quickstep.util;
import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
import android.util.FloatProperty;
import android.view.RemoteAnimationTarget;
import com.android.quickstep.RemoteAnimationTargets;
import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
public class TransformParams {
public static FloatProperty<TransformParams> PROGRESS =
new FloatProperty<TransformParams>("progress") {
@Override
public void setValue(TransformParams params, float v) {
params.setProgress(v);
}
@Override
public Float get(TransformParams params) {
return params.getProgress();
}
};
public static FloatProperty<TransformParams> TARGET_ALPHA =
new FloatProperty<TransformParams>("targetAlpha") {
@Override
public void setValue(TransformParams params, float v) {
params.setTargetAlpha(v);
}
@Override
public Float get(TransformParams params) {
return params.getTargetAlpha();
}
};
/** Progress from 0 to 1 where 0 is in-app and 1 is Overview */
private float mProgress;
private float mTargetAlpha;
private float mCornerRadius;
private RemoteAnimationTargets mTargetSet;
private SurfaceTransactionApplier mSyncTransactionApplier;
private BuilderProxy mHomeBuilderProxy = BuilderProxy.ALWAYS_VISIBLE;
private BuilderProxy mBaseBuilderProxy = BuilderProxy.ALWAYS_VISIBLE;
public TransformParams() {
mProgress = 0;
mTargetAlpha = 1;
mCornerRadius = -1;
}
/**
* Sets the progress of the transformation, where 0 is the source and 1 is the target. We
* automatically adjust properties such as currentRect and cornerRadius based on this
* progress, unless they are manually overridden by setting them on this TransformParams.
*/
public TransformParams setProgress(float progress) {
mProgress = progress;
return this;
}
/**
* Sets the corner radius of the transformed window, in pixels. If unspecified (-1), we
* simply interpolate between the window's corner radius to the task view's corner radius,
* based on {@link #mProgress}.
*/
public TransformParams setCornerRadius(float cornerRadius) {
mCornerRadius = cornerRadius;
return this;
}
/**
* Specifies the alpha of the transformed window. Default is 1.
*/
public TransformParams setTargetAlpha(float targetAlpha) {
mTargetAlpha = targetAlpha;
return this;
}
/**
* Specifies the set of RemoteAnimationTargetCompats that are included in the transformation
* that these TransformParams help compute. These TransformParams generally only apply to
* the targetSet.apps which match the targetSet.targetMode (e.g. the MODE_CLOSING app when
* swiping to home).
*/
public TransformParams setTargetSet(RemoteAnimationTargets targetSet) {
mTargetSet = targetSet;
return this;
}
/**
* Sets the SyncRtSurfaceTransactionApplierCompat that will apply the SurfaceParams that
* are computed based on these TransformParams.
*/
public TransformParams setSyncTransactionApplier(SurfaceTransactionApplier applier) {
mSyncTransactionApplier = applier;
return this;
}
/**
* Sets an alternate function to control transform for non-target apps. The default
* implementation keeps the targets visible with alpha=1
*/
public TransformParams setBaseBuilderProxy(BuilderProxy proxy) {
mBaseBuilderProxy = proxy;
return this;
}
/**
* Sets an alternate function to control transform for home target. The default
* implementation keeps the targets visible with alpha=1
*/
public TransformParams setHomeBuilderProxy(BuilderProxy proxy) {
mHomeBuilderProxy = proxy;
return this;
}
/** Builds the SurfaceTransaction from the given BuilderProxy params. */
public SurfaceTransaction createSurfaceParams(BuilderProxy proxy) {
RemoteAnimationTargets targets = mTargetSet;
SurfaceTransaction transaction = new SurfaceTransaction();
if (targets == null) {
return transaction;
}
for (int i = 0; i < targets.unfilteredApps.length; i++) {
RemoteAnimationTarget app = targets.unfilteredApps[i];
SurfaceProperties builder = transaction.forSurface(app.leash);
if (app.mode == targets.targetMode) {
int activityType = app.windowConfiguration.getActivityType();
if (activityType == ACTIVITY_TYPE_HOME) {
mHomeBuilderProxy.onBuildTargetParams(builder, app, this);
} else {
builder.setAlpha(getTargetAlpha());
proxy.onBuildTargetParams(builder, app, this);
}
} else {
mBaseBuilderProxy.onBuildTargetParams(builder, app, this);
}
}
// always put wallpaper layer to bottom.
final int wallpaperLength = targets.wallpapers != null ? targets.wallpapers.length : 0;
for (int i = 0; i < wallpaperLength; i++) {
RemoteAnimationTarget wallpaper = targets.wallpapers[i];
transaction.forSurface(wallpaper.leash).setLayer(Integer.MIN_VALUE);
}
return transaction;
}
// Pubic getters so outside packages can read the values.
public float getProgress() {
return mProgress;
}
public float getTargetAlpha() {
return mTargetAlpha;
}
public float getCornerRadius() {
return mCornerRadius;
}
public RemoteAnimationTargets getTargetSet() {
return mTargetSet;
}
public void applySurfaceParams(SurfaceTransaction builder) {
if (mSyncTransactionApplier != null) {
mSyncTransactionApplier.scheduleApply(builder);
} else {
builder.getTransaction().apply();
}
}
@FunctionalInterface
public interface BuilderProxy {
BuilderProxy NO_OP = (builder, app, params) -> { };
BuilderProxy ALWAYS_VISIBLE = (builder, app, params) -> builder.setAlpha(1);
void onBuildTargetParams(SurfaceProperties builder,
RemoteAnimationTarget app, TransformParams params);
}
}
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