Mario Bertschler
248c575cca
to swipe allapps from everywhere. The fix is to determine if the widget is scrollable on layouting instead of the callback when a widget has been updated. Bug: 34641906 Change-Id: Idc9d8ade7e601279b87856333ae754f4785131ac
489 lines
16 KiB
Java
489 lines
16 KiB
Java
/*
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* Copyright (C) 2009 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 android.appwidget.AppWidgetHostView;
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import android.appwidget.AppWidgetProviderInfo;
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import android.content.Context;
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import android.graphics.PointF;
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import android.graphics.Rect;
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import android.os.Handler;
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import android.os.SystemClock;
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import android.util.Log;
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import android.util.SparseBooleanArray;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewDebug;
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import android.view.ViewGroup;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.widget.AdapterView;
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import android.widget.Advanceable;
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import android.widget.RemoteViews;
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import com.android.launcher3.dragndrop.DragLayer;
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import com.android.launcher3.dragndrop.DragLayer.TouchCompleteListener;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.concurrent.Executor;
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/**
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* {@inheritDoc}
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*/
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public class LauncherAppWidgetHostView extends AppWidgetHostView
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implements TouchCompleteListener, View.OnLongClickListener {
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private static final String TAG = "LauncherWidgetHostView";
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// Related to the auto-advancing of widgets
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private static final long ADVANCE_INTERVAL = 20000;
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private static final long ADVANCE_STAGGER = 250;
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// Maintains a list of widget ids which are supposed to be auto advanced.
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private static final SparseBooleanArray sAutoAdvanceWidgetIds = new SparseBooleanArray();
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protected final LayoutInflater mInflater;
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private final CheckLongPressHelper mLongPressHelper;
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private final StylusEventHelper mStylusEventHelper;
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private final Context mContext;
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@ViewDebug.ExportedProperty(category = "launcher")
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private int mPreviousOrientation;
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private float mSlop;
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@ViewDebug.ExportedProperty(category = "launcher")
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private boolean mChildrenFocused;
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private boolean mIsScrollable;
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private boolean mIsAttachedToWindow;
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private boolean mIsAutoAdvanceRegistered;
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private Runnable mAutoAdvanceRunnable;
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/**
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* The scaleX and scaleY value such that the widget fits within its cellspans, scaleX = scaleY.
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*/
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private float mScaleToFit = 1f;
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/**
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* The translation values to center the widget within its cellspans.
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*/
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private final PointF mTranslationForCentering = new PointF(0, 0);
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public LauncherAppWidgetHostView(Context context) {
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super(context);
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mContext = context;
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mLongPressHelper = new CheckLongPressHelper(this, this);
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mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);
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mInflater = LayoutInflater.from(context);
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setAccessibilityDelegate(Launcher.getLauncher(context).getAccessibilityDelegate());
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setBackgroundResource(R.drawable.widget_internal_focus_bg);
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if (Utilities.isAtLeastO()) {
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try {
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Method asyncMethod = AppWidgetHostView.class
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.getMethod("setAsyncExecutor", Executor.class);
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asyncMethod.invoke(this, Utilities.THREAD_POOL_EXECUTOR);
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} catch (Exception e) {
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Log.e(TAG, "Unable to set async executor", e);
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}
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}
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}
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@Override
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public boolean onLongClick(View view) {
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if (mIsScrollable) {
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DragLayer dragLayer = Launcher.getLauncher(getContext()).getDragLayer();
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dragLayer.requestDisallowInterceptTouchEvent(false);
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}
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view.performLongClick();
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return true;
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}
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@Override
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protected View getErrorView() {
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return mInflater.inflate(R.layout.appwidget_error, this, false);
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}
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public void updateLastInflationOrientation() {
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mPreviousOrientation = mContext.getResources().getConfiguration().orientation;
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}
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@Override
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public void updateAppWidget(RemoteViews remoteViews) {
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// Store the orientation in which the widget was inflated
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updateLastInflationOrientation();
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super.updateAppWidget(remoteViews);
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// The provider info or the views might have changed.
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checkIfAutoAdvance();
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}
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private boolean checkScrollableRecursively(ViewGroup viewGroup) {
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if (viewGroup instanceof AdapterView) {
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return true;
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} else {
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for (int i=0; i < viewGroup.getChildCount(); i++) {
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View child = viewGroup.getChildAt(i);
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if (child instanceof ViewGroup) {
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if (checkScrollableRecursively((ViewGroup) child)) {
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return true;
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}
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}
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}
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}
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return false;
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}
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public boolean isReinflateRequired() {
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// Re-inflate is required if the orientation has changed since last inflated.
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int orientation = mContext.getResources().getConfiguration().orientation;
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if (mPreviousOrientation != orientation) {
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return true;
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}
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return false;
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}
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public boolean onInterceptTouchEvent(MotionEvent ev) {
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// Just in case the previous long press hasn't been cleared, we make sure to start fresh
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// on touch down.
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if (ev.getAction() == MotionEvent.ACTION_DOWN) {
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mLongPressHelper.cancelLongPress();
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}
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// Consume any touch events for ourselves after longpress is triggered
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if (mLongPressHelper.hasPerformedLongPress()) {
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mLongPressHelper.cancelLongPress();
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return true;
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}
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// Watch for longpress or stylus button press events at this level to
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// make sure users can always pick up this widget
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if (mStylusEventHelper.onMotionEvent(ev)) {
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mLongPressHelper.cancelLongPress();
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return true;
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}
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switch (ev.getAction()) {
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case MotionEvent.ACTION_DOWN: {
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DragLayer dragLayer = Launcher.getLauncher(getContext()).getDragLayer();
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if (mIsScrollable) {
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dragLayer.requestDisallowInterceptTouchEvent(true);
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}
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if (!mStylusEventHelper.inStylusButtonPressed()) {
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mLongPressHelper.postCheckForLongPress();
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}
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dragLayer.setTouchCompleteListener(this);
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break;
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}
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case MotionEvent.ACTION_UP:
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case MotionEvent.ACTION_CANCEL:
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mLongPressHelper.cancelLongPress();
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break;
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case MotionEvent.ACTION_MOVE:
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if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
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mLongPressHelper.cancelLongPress();
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}
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break;
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}
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// Otherwise continue letting touch events fall through to children
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return false;
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}
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public boolean onTouchEvent(MotionEvent ev) {
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// If the widget does not handle touch, then cancel
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// long press when we release the touch
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switch (ev.getAction()) {
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case MotionEvent.ACTION_UP:
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case MotionEvent.ACTION_CANCEL:
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mLongPressHelper.cancelLongPress();
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break;
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case MotionEvent.ACTION_MOVE:
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if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
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mLongPressHelper.cancelLongPress();
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}
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break;
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}
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return false;
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}
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@Override
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
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mIsAttachedToWindow = true;
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checkIfAutoAdvance();
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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// We can't directly use isAttachedToWindow() here, as this is called before the internal
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// state is updated. So isAttachedToWindow() will return true until next frame.
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mIsAttachedToWindow = false;
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checkIfAutoAdvance();
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}
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@Override
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public void cancelLongPress() {
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super.cancelLongPress();
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mLongPressHelper.cancelLongPress();
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}
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@Override
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public AppWidgetProviderInfo getAppWidgetInfo() {
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AppWidgetProviderInfo info = super.getAppWidgetInfo();
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if (info != null && !(info instanceof LauncherAppWidgetProviderInfo)) {
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throw new IllegalStateException("Launcher widget must have"
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+ " LauncherAppWidgetProviderInfo");
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}
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return info;
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}
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@Override
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public void onTouchComplete() {
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if (!mLongPressHelper.hasPerformedLongPress()) {
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// If a long press has been performed, we don't want to clear the record of that since
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// we still may be receiving a touch up which we want to intercept
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mLongPressHelper.cancelLongPress();
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}
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}
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@Override
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public int getDescendantFocusability() {
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return mChildrenFocused ? ViewGroup.FOCUS_BEFORE_DESCENDANTS
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: ViewGroup.FOCUS_BLOCK_DESCENDANTS;
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}
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@Override
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public boolean dispatchKeyEvent(KeyEvent event) {
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if (mChildrenFocused && event.getKeyCode() == KeyEvent.KEYCODE_ESCAPE
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&& event.getAction() == KeyEvent.ACTION_UP) {
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mChildrenFocused = false;
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requestFocus();
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return true;
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}
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return super.dispatchKeyEvent(event);
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if (!mChildrenFocused && keyCode == KeyEvent.KEYCODE_ENTER) {
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event.startTracking();
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return true;
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}
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return super.onKeyDown(keyCode, event);
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}
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@Override
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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if (event.isTracking()) {
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if (!mChildrenFocused && keyCode == KeyEvent.KEYCODE_ENTER) {
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mChildrenFocused = true;
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ArrayList<View> focusableChildren = getFocusables(FOCUS_FORWARD);
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focusableChildren.remove(this);
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int childrenCount = focusableChildren.size();
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switch (childrenCount) {
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case 0:
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mChildrenFocused = false;
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break;
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case 1: {
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if (getTag() instanceof ItemInfo) {
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ItemInfo item = (ItemInfo) getTag();
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if (item.spanX == 1 && item.spanY == 1) {
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focusableChildren.get(0).performClick();
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mChildrenFocused = false;
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return true;
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}
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}
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// continue;
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}
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default:
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focusableChildren.get(0).requestFocus();
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return true;
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}
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}
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}
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return super.onKeyUp(keyCode, event);
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}
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@Override
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protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) {
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if (gainFocus) {
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mChildrenFocused = false;
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dispatchChildFocus(false);
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}
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super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
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}
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@Override
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public void requestChildFocus(View child, View focused) {
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super.requestChildFocus(child, focused);
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dispatchChildFocus(mChildrenFocused && focused != null);
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if (focused != null) {
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focused.setFocusableInTouchMode(false);
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}
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}
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@Override
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public void clearChildFocus(View child) {
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super.clearChildFocus(child);
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dispatchChildFocus(false);
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}
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@Override
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public boolean dispatchUnhandledMove(View focused, int direction) {
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return mChildrenFocused;
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}
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private void dispatchChildFocus(boolean childIsFocused) {
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// The host view's background changes when selected, to indicate the focus is inside.
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setSelected(childIsFocused);
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}
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public void switchToErrorView() {
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// Update the widget with 0 Layout id, to reset the view to error view.
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updateAppWidget(new RemoteViews(getAppWidgetInfo().provider.getPackageName(), 0));
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}
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@Override
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protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
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try {
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super.onLayout(changed, left, top, right, bottom);
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} catch (final RuntimeException e) {
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post(new Runnable() {
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@Override
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public void run() {
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switchToErrorView();
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}
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});
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}
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mIsScrollable = checkScrollableRecursively(this);
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}
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@Override
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public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
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super.onInitializeAccessibilityNodeInfo(info);
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info.setClassName(getClass().getName());
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}
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@Override
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protected void onWindowVisibilityChanged(int visibility) {
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super.onWindowVisibilityChanged(visibility);
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maybeRegisterAutoAdvance();
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}
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private void checkIfAutoAdvance() {
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boolean isAutoAdvance = false;
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Advanceable target = getAdvanceable();
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if (target != null) {
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isAutoAdvance = true;
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target.fyiWillBeAdvancedByHostKThx();
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}
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boolean wasAutoAdvance = sAutoAdvanceWidgetIds.indexOfKey(getAppWidgetId()) >= 0;
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if (isAutoAdvance != wasAutoAdvance) {
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if (isAutoAdvance) {
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sAutoAdvanceWidgetIds.put(getAppWidgetId(), true);
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} else {
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sAutoAdvanceWidgetIds.delete(getAppWidgetId());
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}
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maybeRegisterAutoAdvance();
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}
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}
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private Advanceable getAdvanceable() {
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AppWidgetProviderInfo info = getAppWidgetInfo();
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if (info == null || info.autoAdvanceViewId == NO_ID || !mIsAttachedToWindow) {
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return null;
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}
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View v = findViewById(info.autoAdvanceViewId);
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return (v instanceof Advanceable) ? (Advanceable) v : null;
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}
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private void maybeRegisterAutoAdvance() {
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Handler handler = getHandler();
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boolean shouldRegisterAutoAdvance = getWindowVisibility() == VISIBLE && handler != null
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&& (sAutoAdvanceWidgetIds.indexOfKey(getAppWidgetId()) >= 0);
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if (shouldRegisterAutoAdvance != mIsAutoAdvanceRegistered) {
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mIsAutoAdvanceRegistered = shouldRegisterAutoAdvance;
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if (mAutoAdvanceRunnable == null) {
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mAutoAdvanceRunnable = new Runnable() {
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@Override
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public void run() {
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runAutoAdvance();
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}
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};
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}
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handler.removeCallbacks(mAutoAdvanceRunnable);
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scheduleNextAdvance();
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}
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}
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private void scheduleNextAdvance() {
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if (!mIsAutoAdvanceRegistered) {
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return;
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}
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long now = SystemClock.uptimeMillis();
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long advanceTime = now + (ADVANCE_INTERVAL - (now % ADVANCE_INTERVAL)) +
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ADVANCE_STAGGER * sAutoAdvanceWidgetIds.indexOfKey(getAppWidgetId());
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Handler handler = getHandler();
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if (handler != null) {
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handler.postAtTime(mAutoAdvanceRunnable, advanceTime);
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}
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}
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private void runAutoAdvance() {
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Advanceable target = getAdvanceable();
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if (target != null) {
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target.advance();
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}
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scheduleNextAdvance();
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}
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public void setScaleToFit(float scale) {
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mScaleToFit = scale;
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setScaleX(scale);
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setScaleY(scale);
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}
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public float getScaleToFit() {
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return mScaleToFit;
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}
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public void setTranslationForCentering(float x, float y) {
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mTranslationForCentering.set(x, y);
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setTranslationX(x);
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setTranslationY(y);
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}
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public PointF getTranslationForCentering() {
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return mTranslationForCentering;
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}
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}
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