Alex Chau
396441545f
desktopCarouselDetachProgress: - Controls whether desktop and fullscreen carousel is attached (RecentsView..DESKTOP_CAROUSEL_DETACH_PROGRESS) - When fully detached (progress==1), hide the carousel (RecentsView.applyAttachAlpha) - As the detach progress increase, we animate the other carousel away by using `getMaxHorizontalOffsetSize`, with additional maxOverscroll to make sure the other carousel won't be seen even if user overscroll RecentsView (RecentsView.updatePageOffsets) min/max scroll changes - When desktop and fullscreen carousel detaches, disallow scrolling to the detached carousel. This avoids quickswitching or scroll to the other carousel (RecentsView.getFirstViewIndex and RecentsView.getLastViewIndex) State machine changes: - On Overview states, desktop and fullscreen carousel is attached. Otherwise, they're detached, including in quick switch and home. (BaseState, RecentsState, OverviewState, BackgroundAppState) - StateController set/animate desktopCarouselDetachProgress between the above states (BaseRecentsViewStateController, FallbackRecentsStateController) - On swipe up gesture release and going to Overview, animate attaching back the 2 carousels (RecentsView.onPrepareGestureEndAnimation) Bug: 353948100 Test: quick switch; swipe from home/app; scroll in Overview; with normal/3p launcher Flag: com.android.launcher3.enable_large_desktop_windowing_tile Change-Id: Ic4217efb07db079825a3210afd306d9ef627c873
89 lines
2.6 KiB
Java
89 lines
2.6 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.statemanager;
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import android.content.Context;
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import com.android.launcher3.DeviceProfile;
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import com.android.launcher3.views.ActivityContext;
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/**
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* Interface representing a state of a StatefulContainer
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*/
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public interface BaseState<T extends BaseState> {
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// Flag to indicate that Launcher is non-interactive in this state
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int FLAG_NON_INTERACTIVE = 1 << 0;
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int FLAG_DISABLE_RESTORE = 1 << 1;
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static int getFlag(int index) {
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// reserve few spots to base flags
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return 1 << (index + 2);
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}
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/**
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* @return How long the animation to this state should take (or from this state to NORMAL).
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*/
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<DEVICE_PROFILE_CONTEXT extends Context & ActivityContext>
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int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState);
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/**
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* Returns the state to go back to from this state
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*/
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T getHistoryForState(T previousState);
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/**
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* @return true if the state can be persisted across activity restarts.
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*/
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default boolean shouldDisableRestore() {
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return hasFlag(FLAG_DISABLE_RESTORE);
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}
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/**
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* Returns if the state has the provided flag
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*/
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boolean hasFlag(int flagMask);
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/**
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* For this state, whether tasks should layout as a grid rather than a list.
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*/
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default boolean displayOverviewTasksAsGrid(DeviceProfile deviceProfile) {
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return false;
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}
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/**
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* For this state, whether tasks should show the thumbnail splash.
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*/
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default boolean showTaskThumbnailSplash() {
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return false;
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}
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/**
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* For this state, whether fullscreen and desktop quickswitch carousel are detached.
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*/
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default boolean detachDesktopCarousel() {
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return true;
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}
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/**
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* For this state, whether member variables and other forms of data state should be preserved
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* or wiped when the state is reapplied. (See {@link StateManager#reapplyState()})
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*/
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default boolean shouldPreserveDataStateOnReapply() {
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return false;
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}
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}
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