android-34/com/android/wm/shell/bubbles/animation/ExpandedViewAnimationController.java

/*
 * Copyright (C) 2022 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.wm.shell.bubbles.animation;

import com.android.wm.shell.bubbles.BubbleExpandedView;

/**
 * Animation controller for bubble expanded view collapsing
 */
public interface ExpandedViewAnimationController {
    /**
     * Set expanded view that this controller is working with.
     */
    void setExpandedView(BubbleExpandedView expandedView);

    /**
     * Set current collapse value, in pixels.
     *
     * @param distance pixels that user dragged the view by
     */
    void updateDrag(float distance);

    /**
     * Set current swipe velocity.
     * Velocity is directional:
     * <ul>
     *     <li>velocity < 0 means swipe direction is up</li>
     *     <li>velocity > 0 means swipe direction is down</li>
     * </ul>
     */
    void setSwipeVelocity(float velocity);

    /**
     * Check if view is dragged past collapse threshold or swipe up velocity exceeds min velocity
     * required to collapse the view
     */
    boolean shouldCollapse();

    /**
     * Animate view to collapsed state
     *
     * @param startStackCollapse runnable that is triggered when bubbles can start moving back to
     *                           their collapsed location
     * @param after              runnable to run after animation is complete
     */
    void animateCollapse(Runnable startStackCollapse, Runnable after);

    /**
     * Animate the view back to fully expanded state.
     */
    void animateBackToExpanded();

    /**
     * Animate view for IME visibility change
     */
    void animateForImeVisibilityChange(boolean visible);

    /**
     * Reset the view to fully expanded state
     */
    void reset();
}