mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-20 03:08:19 +00:00
6bb8d79549
This CL adds a layer of OnBackPressedHanlderRouter to Launcher: 1. 4 OnBackPressedHandler(s) are added in such order: auto cancel action mode handler, drag handler, view handler and state handler 2. first handler who can handle back will handle the entire back gesture 3. Let WidgetsFullSheet to handle widget to all apps transition Bug: b/260956481 Test: manual Change-Id: Idbce3dcec746226dd68aaabaddc8fe01334e9673
308 lines
12 KiB
Java
308 lines
12 KiB
Java
/*
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* Copyright (C) 2016 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;
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import static android.animation.ValueAnimator.areAnimatorsEnabled;
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import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED;
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import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED;
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import static com.android.launcher3.compat.AccessibilityManagerCompat.isAccessibilityEnabled;
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import static com.android.launcher3.compat.AccessibilityManagerCompat.sendCustomAccessibilityEvent;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.util.Pair;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.view.animation.Interpolator;
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import android.widget.LinearLayout;
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import androidx.annotation.IntDef;
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import com.android.launcher3.anim.PendingAnimation;
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import com.android.launcher3.util.TouchController;
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import com.android.launcher3.views.ActivityContext;
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import com.android.launcher3.views.BaseDragLayer;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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/**
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* Base class for a View which shows a floating UI on top of the launcher UI.
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*/
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public abstract class AbstractFloatingView extends LinearLayout implements TouchController,
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OnBackPressedHandler {
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@IntDef(flag = true, value = {
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TYPE_FOLDER,
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TYPE_ACTION_POPUP,
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TYPE_WIDGETS_BOTTOM_SHEET,
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TYPE_WIDGET_RESIZE_FRAME,
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TYPE_WIDGETS_FULL_SHEET,
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TYPE_ON_BOARD_POPUP,
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TYPE_DISCOVERY_BOUNCE,
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TYPE_SNACKBAR,
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TYPE_LISTENER,
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TYPE_ALL_APPS_EDU,
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TYPE_DRAG_DROP_POPUP,
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TYPE_TASK_MENU,
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TYPE_OPTIONS_POPUP,
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TYPE_ICON_SURFACE,
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TYPE_OPTIONS_POPUP_DIALOG,
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TYPE_PIN_WIDGET_FROM_EXTERNAL_POPUP,
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TYPE_WIDGETS_EDUCATION_DIALOG,
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TYPE_TASKBAR_EDUCATION_DIALOG,
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TYPE_TASKBAR_ALL_APPS,
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TYPE_ADD_TO_HOME_CONFIRMATION,
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TYPE_TASKBAR_OVERLAY_PROXY
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})
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@Retention(RetentionPolicy.SOURCE)
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public @interface FloatingViewType {}
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public static final int TYPE_FOLDER = 1 << 0;
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public static final int TYPE_ACTION_POPUP = 1 << 1;
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public static final int TYPE_WIDGETS_BOTTOM_SHEET = 1 << 2;
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public static final int TYPE_WIDGET_RESIZE_FRAME = 1 << 3;
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public static final int TYPE_WIDGETS_FULL_SHEET = 1 << 4;
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public static final int TYPE_ON_BOARD_POPUP = 1 << 5;
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public static final int TYPE_DISCOVERY_BOUNCE = 1 << 6;
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public static final int TYPE_SNACKBAR = 1 << 7;
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public static final int TYPE_LISTENER = 1 << 8;
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public static final int TYPE_ALL_APPS_EDU = 1 << 9;
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public static final int TYPE_DRAG_DROP_POPUP = 1 << 10;
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// Popups related to quickstep UI
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public static final int TYPE_TASK_MENU = 1 << 11;
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public static final int TYPE_OPTIONS_POPUP = 1 << 12;
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public static final int TYPE_ICON_SURFACE = 1 << 13;
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public static final int TYPE_OPTIONS_POPUP_DIALOG = 1 << 14;
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public static final int TYPE_PIN_WIDGET_FROM_EXTERNAL_POPUP = 1 << 15;
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public static final int TYPE_WIDGETS_EDUCATION_DIALOG = 1 << 16;
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public static final int TYPE_TASKBAR_EDUCATION_DIALOG = 1 << 17;
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public static final int TYPE_TASKBAR_ALL_APPS = 1 << 18;
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public static final int TYPE_ADD_TO_HOME_CONFIRMATION = 1 << 19;
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public static final int TYPE_TASKBAR_OVERLAY_PROXY = 1 << 20;
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public static final int TYPE_ALL = TYPE_FOLDER | TYPE_ACTION_POPUP
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| TYPE_WIDGETS_BOTTOM_SHEET | TYPE_WIDGET_RESIZE_FRAME | TYPE_WIDGETS_FULL_SHEET
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| TYPE_ON_BOARD_POPUP | TYPE_DISCOVERY_BOUNCE | TYPE_TASK_MENU
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| TYPE_OPTIONS_POPUP | TYPE_SNACKBAR | TYPE_LISTENER | TYPE_ALL_APPS_EDU
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| TYPE_ICON_SURFACE | TYPE_DRAG_DROP_POPUP | TYPE_PIN_WIDGET_FROM_EXTERNAL_POPUP
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| TYPE_WIDGETS_EDUCATION_DIALOG | TYPE_TASKBAR_EDUCATION_DIALOG | TYPE_TASKBAR_ALL_APPS
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| TYPE_OPTIONS_POPUP_DIALOG | TYPE_ADD_TO_HOME_CONFIRMATION
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| TYPE_TASKBAR_OVERLAY_PROXY;
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// Type of popups which should be kept open during launcher rebind
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public static final int TYPE_REBIND_SAFE = TYPE_WIDGETS_FULL_SHEET
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| TYPE_WIDGETS_BOTTOM_SHEET | TYPE_ON_BOARD_POPUP | TYPE_DISCOVERY_BOUNCE
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| TYPE_ALL_APPS_EDU | TYPE_ICON_SURFACE | TYPE_WIDGETS_EDUCATION_DIALOG
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| TYPE_TASKBAR_EDUCATION_DIALOG | TYPE_TASKBAR_ALL_APPS | TYPE_OPTIONS_POPUP_DIALOG
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| TYPE_TASKBAR_OVERLAY_PROXY;
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public static final int TYPE_ACCESSIBLE = TYPE_ALL & ~TYPE_DISCOVERY_BOUNCE & ~TYPE_LISTENER
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& ~TYPE_ALL_APPS_EDU;
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// These view all have particular operation associated with swipe down interaction.
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public static final int TYPE_STATUS_BAR_SWIPE_DOWN_DISALLOW = TYPE_WIDGETS_BOTTOM_SHEET |
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TYPE_WIDGETS_FULL_SHEET | TYPE_WIDGET_RESIZE_FRAME | TYPE_ON_BOARD_POPUP |
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TYPE_DISCOVERY_BOUNCE | TYPE_TASK_MENU | TYPE_DRAG_DROP_POPUP;
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protected boolean mIsOpen;
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public AbstractFloatingView(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public AbstractFloatingView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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}
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/**
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* We need to handle touch events to prevent them from falling through to the workspace below.
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*/
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@SuppressLint("ClickableViewAccessibility")
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@Override
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public boolean onTouchEvent(MotionEvent ev) {
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return true;
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}
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public final void close(boolean animate) {
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animate &= areAnimatorsEnabled();
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if (mIsOpen) {
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// Add to WW logging
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}
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handleClose(animate);
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mIsOpen = false;
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}
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protected abstract void handleClose(boolean animate);
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/**
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* Creates a user-controlled animation to hint that the view will be closed if completed.
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* @param distanceToMove The max distance that elements should move from their starting point.
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*/
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public void addHintCloseAnim(
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float distanceToMove, Interpolator interpolator, PendingAnimation target) { }
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public final boolean isOpen() {
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return mIsOpen;
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}
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protected abstract boolean isOfType(@FloatingViewType int type);
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/** Return true if this view can consume back press. */
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public boolean canHandleBack() {
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return true;
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}
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@Override
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public void onBackInvoked() {
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close(true);
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}
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@Override
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public boolean onControllerTouchEvent(MotionEvent ev) {
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return false;
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}
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protected void announceAccessibilityChanges() {
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Pair<View, String> targetInfo = getAccessibilityTarget();
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if (targetInfo == null || !isAccessibilityEnabled(getContext())) {
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return;
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}
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sendCustomAccessibilityEvent(
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targetInfo.first, TYPE_WINDOW_STATE_CHANGED, targetInfo.second);
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if (mIsOpen) {
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getAccessibilityInitialFocusView().performAccessibilityAction(
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AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
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}
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ActivityContext.lookupContext(getContext()).getDragLayer()
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.sendAccessibilityEvent(TYPE_WINDOW_CONTENT_CHANGED);
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}
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protected Pair<View, String> getAccessibilityTarget() {
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return null;
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}
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/** Returns the View that Accessibility services should focus on first. */
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protected View getAccessibilityInitialFocusView() {
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return this;
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}
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/**
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* Returns a view matching FloatingViewType and {@link #isOpen()} == true.
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*/
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public static <T extends AbstractFloatingView> T getOpenView(
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ActivityContext activity, @FloatingViewType int type) {
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return getView(activity, type, true /* mustBeOpen */);
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}
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/**
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* Returns whether there is at least one view of the given type where {@link #isOpen()} == true.
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*/
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public static boolean hasOpenView(ActivityContext activity, @FloatingViewType int type) {
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return getOpenView(activity, type) != null;
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}
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/**
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* Returns a view matching FloatingViewType, and {@link #isOpen()} may be false (if animating
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* closed).
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*/
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public static <T extends AbstractFloatingView> T getAnyView(
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ActivityContext activity, @FloatingViewType int type) {
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return getView(activity, type, false /* mustBeOpen */);
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}
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private static <T extends AbstractFloatingView> T getView(
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ActivityContext activity, @FloatingViewType int type, boolean mustBeOpen) {
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BaseDragLayer dragLayer = activity.getDragLayer();
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if (dragLayer == null) return null;
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// Iterate in reverse order. AbstractFloatingView is added later to the dragLayer,
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// and will be one of the last views.
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for (int i = dragLayer.getChildCount() - 1; i >= 0; i--) {
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View child = dragLayer.getChildAt(i);
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if (child instanceof AbstractFloatingView) {
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AbstractFloatingView view = (AbstractFloatingView) child;
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if (view.isOfType(type) && (!mustBeOpen || view.isOpen())) {
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return (T) view;
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}
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}
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}
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return null;
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}
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public static void closeOpenContainer(ActivityContext activity,
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@FloatingViewType int type) {
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AbstractFloatingView view = getOpenView(activity, type);
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if (view != null) {
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view.close(true);
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}
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}
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public static void closeOpenViews(ActivityContext activity, boolean animate,
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@FloatingViewType int type) {
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BaseDragLayer dragLayer = activity.getDragLayer();
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// Iterate in reverse order. AbstractFloatingView is added later to the dragLayer,
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// and will be one of the last views.
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for (int i = dragLayer.getChildCount() - 1; i >= 0; i--) {
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View child = dragLayer.getChildAt(i);
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if (child instanceof AbstractFloatingView) {
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AbstractFloatingView abs = (AbstractFloatingView) child;
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if (abs.isOfType(type)) {
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abs.close(animate);
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}
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}
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}
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}
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public static void closeAllOpenViews(ActivityContext activity, boolean animate) {
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closeOpenViews(activity, animate, TYPE_ALL);
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activity.finishAutoCancelActionMode();
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}
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public static void closeAllOpenViews(ActivityContext activity) {
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closeAllOpenViews(activity, true);
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}
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public static void closeAllOpenViewsExcept(ActivityContext activity, boolean animate,
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@FloatingViewType int type) {
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closeOpenViews(activity, animate, TYPE_ALL & ~type);
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activity.finishAutoCancelActionMode();
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}
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public static void closeAllOpenViewsExcept(ActivityContext activity,
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@FloatingViewType int type) {
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closeAllOpenViewsExcept(activity, true, type);
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}
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public static AbstractFloatingView getTopOpenView(ActivityContext activity) {
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return getTopOpenViewWithType(activity, TYPE_ALL);
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}
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public static AbstractFloatingView getTopOpenViewWithType(ActivityContext activity,
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@FloatingViewType int type) {
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return getOpenView(activity, type);
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}
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public boolean canInterceptEventsInSystemGestureRegion() {
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return false;
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}
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}
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