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/*
* Copyright (C) 2023 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.launcher3.taskbar;
import static com.android.quickstep.util.BorderAnimator.DEFAULT_BORDER_COLOR;
import android.animation.Animator;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import androidx.annotation.ColorInt;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.constraintlayout.widget.ConstraintLayout;
import com.android.launcher3.R;
import com.android.launcher3.util.Preconditions;
import com.android.quickstep.util.BorderAnimator;
import com.android.systemui.shared.recents.model.Task;
import com.android.systemui.shared.recents.model.ThumbnailData;
import java.util.function.Consumer;
/**
* A view that displays a recent task during a keyboard quick switch.
*/
public class KeyboardQuickSwitchTaskView extends ConstraintLayout {
@ColorInt private final int mBorderColor;
@Nullable private BorderAnimator mBorderAnimator;
@Nullable private ImageView mThumbnailView1;
@Nullable private ImageView mThumbnailView2;
@Nullable private ImageView mIcon1;
@Nullable private ImageView mIcon2;
@Nullable private View mContent;
public KeyboardQuickSwitchTaskView(@NonNull Context context) {
this(context, null);
}
public KeyboardQuickSwitchTaskView(@NonNull Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public KeyboardQuickSwitchTaskView(
@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public KeyboardQuickSwitchTaskView(
@NonNull Context context,
@Nullable AttributeSet attrs,
int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
TypedArray ta = context.obtainStyledAttributes(
attrs, R.styleable.TaskView, defStyleAttr, defStyleRes);
setWillNotDraw(false);
mBorderColor = ta.getColor(
R.styleable.TaskView_borderColor, DEFAULT_BORDER_COLOR);
ta.recycle();
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mThumbnailView1 = findViewById(R.id.thumbnail1);
mThumbnailView2 = findViewById(R.id.thumbnail2);
mIcon1 = findViewById(R.id.icon1);
mIcon2 = findViewById(R.id.icon2);
mContent = findViewById(R.id.content);
Resources resources = mContext.getResources();
Preconditions.assertNotNull(mContent);
mBorderAnimator = new BorderAnimator(
/* borderRadiusPx= */ resources.getDimensionPixelSize(
R.dimen.keyboard_quick_switch_task_view_radius),
/* borderColor= */ mBorderColor,
/* borderAnimationParams= */ new BorderAnimator.ScalingParams(
/* borderWidthPx= */ resources.getDimensionPixelSize(
R.dimen.keyboard_quick_switch_border_width),
/* boundsBuilder= */ bounds -> bounds.set(
0, 0, getWidth(), getHeight()),
/* targetView= */ this,
/* contentView= */ mContent));
}
@Nullable
protected Animator getFocusAnimator(boolean focused) {
return mBorderAnimator == null ? null : mBorderAnimator.buildAnimator(focused);
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
if (mBorderAnimator != null) {
mBorderAnimator.drawBorder(canvas);
}
}
protected void setThumbnails(
@NonNull Task task1,
@Nullable Task task2,
@Nullable ThumbnailUpdateFunction thumbnailUpdateFunction,
@Nullable IconUpdateFunction iconUpdateFunction) {
applyThumbnail(mThumbnailView1, task1, thumbnailUpdateFunction);
applyThumbnail(mThumbnailView2, task2, thumbnailUpdateFunction);
if (iconUpdateFunction == null) {
applyIcon(mIcon1, task1);
applyIcon(mIcon2, task2);
setContentDescription(task2 == null
? task1.titleDescription
: getContext().getString(
R.string.quick_switch_split_task,
task1.titleDescription,
task2.titleDescription));
return;
}
iconUpdateFunction.updateIconInBackground(task1, t -> {
applyIcon(mIcon1, task1);
if (task2 != null) {
return;
}
setContentDescription(task1.titleDescription);
});
if (task2 == null) {
return;
}
iconUpdateFunction.updateIconInBackground(task2, t -> {
applyIcon(mIcon2, task2);
setContentDescription(getContext().getString(
R.string.quick_switch_split_task,
task1.titleDescription,
task2.titleDescription));
});
}
private void applyThumbnail(
@Nullable ImageView thumbnailView,
@Nullable Task task,
@Nullable ThumbnailUpdateFunction updateFunction) {
if (thumbnailView == null) {
return;
}
if (task == null) {
return;
}
if (updateFunction == null) {
applyThumbnail(thumbnailView, task.thumbnail);
return;
}
updateFunction.updateThumbnailInBackground(
task, thumbnailData -> applyThumbnail(thumbnailView, thumbnailData));
}
private void applyThumbnail(
@NonNull ImageView thumbnailView, ThumbnailData thumbnailData) {
Bitmap bm = thumbnailData == null ? null : thumbnailData.thumbnail;
thumbnailView.setVisibility(VISIBLE);
thumbnailView.setImageBitmap(bm);
}
private void applyIcon(@Nullable ImageView iconView, @Nullable Task task) {
if (iconView == null || task == null) {
return;
}
iconView.setVisibility(VISIBLE);
iconView.setImageDrawable(task.icon);
}
protected interface ThumbnailUpdateFunction {
void updateThumbnailInBackground(Task task, Consumer<ThumbnailData> callback);
}
protected interface IconUpdateFunction {
void updateIconInBackground(Task task, Consumer<Task> callback);
}
}
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