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/*
* Copyright (C) 2018 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.views;
import static com.android.launcher3.LauncherAppTransitionManagerImpl.ALL_APPS_PROGRESS_OFF_SCREEN;
import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.os.Build;
import android.util.AttributeSet;
import android.util.FloatProperty;
import android.view.View;
import android.view.ViewDebug;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.R;
import com.android.launcher3.anim.Interpolators;
import com.android.launcher3.views.ScrimView;
import com.android.quickstep.OverviewInteractionState;
import com.android.quickstep.util.ClipAnimationHelper;
import com.android.quickstep.util.LayoutUtils;
/**
* {@link RecentsView} used in Launcher activity
*/
@TargetApi(Build.VERSION_CODES.O)
public class LauncherRecentsView extends RecentsView<Launcher> {
public static final FloatProperty<LauncherRecentsView> TRANSLATION_Y_FACTOR =
new FloatProperty<LauncherRecentsView>("translationYFactor") {
@Override
public void setValue(LauncherRecentsView view, float v) {
view.setTranslationYFactor(v);
}
@Override
public Float get(LauncherRecentsView view) {
return view.mTranslationYFactor;
}
};
@ViewDebug.ExportedProperty(category = "launcher")
private float mTranslationYFactor;
public LauncherRecentsView(Context context) {
this(context, null);
}
public LauncherRecentsView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public LauncherRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setContentAlpha(0);
}
@Override
protected void onAllTasksRemoved() {
mActivity.getStateManager().goToState(NORMAL);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
setTranslationYFactor(mTranslationYFactor);
}
public void setTranslationYFactor(float translationFactor) {
mTranslationYFactor = translationFactor;
setTranslationY(computeTranslationYForFactor(mTranslationYFactor));
}
public float computeTranslationYForFactor(float translationYFactor) {
return translationYFactor * (getPaddingBottom() - getPaddingTop());
}
@Override
public void draw(Canvas canvas) {
maybeDrawEmptyMessage(canvas);
super.draw(canvas);
}
@Override
public void onViewAdded(View child) {
super.onViewAdded(child);
updateEmptyMessage();
}
@Override
protected void onTaskStackUpdated() {
// Lazily update the empty message only when the task stack is reapplied
updateEmptyMessage();
}
/**
* Animates adjacent tasks and translate hotseat off screen as well.
*/
@Override
public AnimatorSet createAdjacentPageAnimForTaskLaunch(TaskView tv,
ClipAnimationHelper helper) {
AnimatorSet anim = super.createAdjacentPageAnimForTaskLaunch(tv, helper);
if (!OverviewInteractionState.getInstance(mActivity).isSwipeUpGestureEnabled()) {
// Hotseat doesn't move when opening recents with the button,
// so don't animate it here either.
return anim;
}
float allAppsProgressOffscreen = ALL_APPS_PROGRESS_OFF_SCREEN;
LauncherState state = mActivity.getStateManager().getState();
if ((state.getVisibleElements(mActivity) & ALL_APPS_HEADER_EXTRA) != 0) {
float maxShiftRange = mActivity.getDeviceProfile().heightPx;
float currShiftRange = mActivity.getAllAppsController().getShiftRange();
allAppsProgressOffscreen = 1f + (maxShiftRange - currShiftRange) / maxShiftRange;
}
anim.play(ObjectAnimator.ofFloat(
mActivity.getAllAppsController(), ALL_APPS_PROGRESS, allAppsProgressOffscreen));
ObjectAnimator dragHandleAnim = ObjectAnimator.ofInt(
mActivity.findViewById(R.id.scrim_view), ScrimView.DRAG_HANDLE_ALPHA, 0);
dragHandleAnim.setInterpolator(Interpolators.ACCEL_2);
anim.play(dragHandleAnim);
return anim;
}
@Override
protected void getTaskSize(DeviceProfile dp, Rect outRect) {
LayoutUtils.calculateLauncherTaskSize(getContext(), dp, outRect);
}
@Override
protected void onTaskLaunched(boolean success) {
if (success) {
mActivity.getStateManager().goToState(NORMAL, false /* animate */);
} else {
LauncherState state = mActivity.getStateManager().getState();
mActivity.getAllAppsController().setState(state);
}
super.onTaskLaunched(success);
}
@Override
public boolean shouldUseMultiWindowTaskSizeStrategy() {
return mActivity.isInMultiWindowModeCompat();
}
}
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