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/*
* Copyright (C) 2021 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.systemui.shared.system.QuickStepContract.SYSUI_STATE_BUBBLES_EXPANDED;
import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED;
import android.animation.ObjectAnimator;
import android.view.animation.Interpolator;
import android.view.animation.PathInterpolator;
import com.android.quickstep.AnimatedFloat;
import com.android.quickstep.SystemUiProxy;
/**
* Handles properties/data collection, and passes the results to {@link TaskbarScrimView} to render.
*/
public class TaskbarScrimViewController {
private static final float SCRIM_ALPHA = 0.6f;
private static final Interpolator SCRIM_ALPHA_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
private static final Interpolator SCRIM_ALPHA_OUT = new PathInterpolator(0f, 0f, 0.8f, 1f);
private final TaskbarActivityContext mActivity;
private final TaskbarScrimView mScrimView;
// Alpha property for the scrim.
private final AnimatedFloat mScrimAlpha = new AnimatedFloat(this::updateScrimAlpha);
// Initialized in init.
private TaskbarControllers mControllers;
public TaskbarScrimViewController(TaskbarActivityContext activity, TaskbarScrimView scrimView) {
mActivity = activity;
mScrimView = scrimView;
mScrimView.setCornerSizes(mActivity.getLeftCornerRadius(),
mActivity.getRightCornerRadius());
mScrimView.setBackgroundHeight(mActivity.getDeviceProfile().taskbarSize);
}
/**
* Initializes the controller
*/
public void init(TaskbarControllers controllers) {
mControllers = controllers;
}
/**
* Updates the scrim state based on the flags.
*/
public void updateStateForSysuiFlags(int stateFlags, boolean skipAnim) {
final boolean bubblesExpanded = (stateFlags & SYSUI_STATE_BUBBLES_EXPANDED) != 0;
final boolean manageMenuExpanded =
(stateFlags & SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED) != 0;
final boolean showScrim = !mControllers.navbarButtonsViewController.isImeVisible()
&& bubblesExpanded && mControllers.taskbarStashController.isInAppAndNotStashed();
final float scrimAlpha = manageMenuExpanded
// When manage menu shows there's the first scrim and second scrim so figure out
// what the total transparency would be.
? (SCRIM_ALPHA + (SCRIM_ALPHA * (1 - SCRIM_ALPHA)))
: showScrim ? SCRIM_ALPHA : 0;
showScrim(showScrim, scrimAlpha, skipAnim);
}
private void showScrim(boolean showScrim, float alpha, boolean skipAnim) {
mScrimView.setOnClickListener(showScrim ? (view) -> onClick() : null);
mScrimView.setClickable(showScrim);
ObjectAnimator anim = mScrimAlpha.animateToValue(showScrim ? alpha : 0);
anim.setInterpolator(showScrim ? SCRIM_ALPHA_IN : SCRIM_ALPHA_OUT);
anim.start();
if (skipAnim) {
anim.end();
}
}
private void updateScrimAlpha() {
mScrimView.setScrimAlpha(mScrimAlpha.value);
}
private void onClick() {
SystemUiProxy.INSTANCE.get(mActivity).onBackPressed();
}
}
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