mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-20 11:18:21 +00:00
7984c9496b
Uses the widget from packages/apps/QuickSearchBox instead. Change-Id: I85d64defe155c0cad97fafef6a3db62c6cab504a
1312 lines
48 KiB
Java
1312 lines
48 KiB
Java
/*
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* Copyright (C) 2008 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.launcher2;
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import android.app.WallpaperManager;
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import android.content.Context;
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import android.content.Intent;
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import android.content.ComponentName;
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import android.content.res.TypedArray;
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import android.content.pm.PackageManager;
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import android.graphics.Canvas;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.os.Parcelable;
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import android.os.Parcel;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.VelocityTracker;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewGroup;
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import android.view.ViewParent;
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import android.widget.Scroller;
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import android.widget.TextView;
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import java.util.ArrayList;
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/**
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* The workspace is a wide area with a wallpaper and a finite number of screens. Each
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* screen contains a number of icons, folders or widgets the user can interact with.
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* A workspace is meant to be used with a fixed width only.
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*/
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public class Workspace extends ViewGroup implements DropTarget, DragSource, DragScroller {
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@SuppressWarnings({"UnusedDeclaration"})
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private static final String TAG = "Launcher.Workspace";
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private static final int INVALID_SCREEN = -1;
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/**
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* The velocity at which a fling gesture will cause us to snap to the next screen
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*/
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private static final int SNAP_VELOCITY = 1000;
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private final WallpaperManager mWallpaperManager;
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private int mDefaultScreen;
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private boolean mFirstLayout = true;
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private int mCurrentScreen;
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private int mNextScreen = INVALID_SCREEN;
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private Scroller mScroller;
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private VelocityTracker mVelocityTracker;
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/**
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* CellInfo for the cell that is currently being dragged
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*/
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private CellLayout.CellInfo mDragInfo;
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/**
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* Target drop area calculated during last acceptDrop call.
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*/
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private int[] mTargetCell = null;
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private float mLastMotionX;
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private float mLastMotionY;
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private final static int TOUCH_STATE_REST = 0;
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private final static int TOUCH_STATE_SCROLLING = 1;
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private int mTouchState = TOUCH_STATE_REST;
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private OnLongClickListener mLongClickListener;
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private Launcher mLauncher;
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private DragController mDragController;
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/**
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* Cache of vacant cells, used during drag events and invalidated as needed.
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*/
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private CellLayout.CellInfo mVacantCache = null;
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private int[] mTempCell = new int[2];
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private int[] mTempEstimate = new int[2];
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private boolean mAllowLongPress = true;
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private int mTouchSlop;
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private int mMaximumVelocity;
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private Drawable mPreviousIndicator;
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private Drawable mNextIndicator;
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/**
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* Used to inflate the Workspace from XML.
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*
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* @param context The application's context.
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* @param attrs The attribtues set containing the Workspace's customization values.
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*/
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public Workspace(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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/**
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* Used to inflate the Workspace from XML.
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*
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* @param context The application's context.
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* @param attrs The attribtues set containing the Workspace's customization values.
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* @param defStyle Unused.
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*/
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public Workspace(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mWallpaperManager = WallpaperManager.getInstance(context);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Workspace, defStyle, 0);
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mDefaultScreen = a.getInt(R.styleable.Workspace_defaultScreen, 1);
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a.recycle();
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setHapticFeedbackEnabled(false);
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initWorkspace();
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}
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/**
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* Initializes various states for this workspace.
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*/
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private void initWorkspace() {
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mScroller = new Scroller(getContext());
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mCurrentScreen = mDefaultScreen;
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Launcher.setScreen(mCurrentScreen);
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final ViewConfiguration configuration = ViewConfiguration.get(getContext());
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mTouchSlop = configuration.getScaledTouchSlop();
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mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
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}
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@Override
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public void addView(View child, int index, LayoutParams params) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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super.addView(child, index, params);
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}
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@Override
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public void addView(View child) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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super.addView(child);
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}
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@Override
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public void addView(View child, int index) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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super.addView(child, index);
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}
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@Override
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public void addView(View child, int width, int height) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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super.addView(child, width, height);
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}
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@Override
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public void addView(View child, LayoutParams params) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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super.addView(child, params);
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}
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/**
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* @return The open folder on the current screen, or null if there is none
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*/
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Folder getOpenFolder() {
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CellLayout currentScreen = (CellLayout) getChildAt(mCurrentScreen);
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int count = currentScreen.getChildCount();
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for (int i = 0; i < count; i++) {
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View child = currentScreen.getChildAt(i);
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
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if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
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return (Folder) child;
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}
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}
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return null;
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}
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ArrayList<Folder> getOpenFolders() {
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final int screens = getChildCount();
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ArrayList<Folder> folders = new ArrayList<Folder>(screens);
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for (int screen = 0; screen < screens; screen++) {
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CellLayout currentScreen = (CellLayout) getChildAt(screen);
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int count = currentScreen.getChildCount();
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for (int i = 0; i < count; i++) {
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View child = currentScreen.getChildAt(i);
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
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if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
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folders.add((Folder) child);
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break;
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}
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}
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}
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return folders;
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}
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boolean isDefaultScreenShowing() {
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return mCurrentScreen == mDefaultScreen;
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}
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/**
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* Returns the index of the currently displayed screen.
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*
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* @return The index of the currently displayed screen.
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*/
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int getCurrentScreen() {
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return mCurrentScreen;
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}
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/**
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* Sets the current screen.
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*
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* @param currentScreen
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*/
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void setCurrentScreen(int currentScreen) {
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clearVacantCache();
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mCurrentScreen = Math.max(0, Math.min(currentScreen, getChildCount() - 1));
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scrollTo(mCurrentScreen * getWidth(), 0);
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invalidate();
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}
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/**
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* Adds the specified child in the current screen. The position and dimension of
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* the child are defined by x, y, spanX and spanY.
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*
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* @param child The child to add in one of the workspace's screens.
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* @param x The X position of the child in the screen's grid.
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* @param y The Y position of the child in the screen's grid.
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* @param spanX The number of cells spanned horizontally by the child.
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* @param spanY The number of cells spanned vertically by the child.
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*/
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void addInCurrentScreen(View child, int x, int y, int spanX, int spanY) {
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addInScreen(child, mCurrentScreen, x, y, spanX, spanY, false);
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}
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/**
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* Adds the specified child in the current screen. The position and dimension of
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* the child are defined by x, y, spanX and spanY.
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*
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* @param child The child to add in one of the workspace's screens.
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* @param x The X position of the child in the screen's grid.
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* @param y The Y position of the child in the screen's grid.
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* @param spanX The number of cells spanned horizontally by the child.
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* @param spanY The number of cells spanned vertically by the child.
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* @param insert When true, the child is inserted at the beginning of the children list.
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*/
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void addInCurrentScreen(View child, int x, int y, int spanX, int spanY, boolean insert) {
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addInScreen(child, mCurrentScreen, x, y, spanX, spanY, insert);
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}
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/**
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* Adds the specified child in the specified screen. The position and dimension of
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* the child are defined by x, y, spanX and spanY.
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*
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* @param child The child to add in one of the workspace's screens.
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* @param screen The screen in which to add the child.
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* @param x The X position of the child in the screen's grid.
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* @param y The Y position of the child in the screen's grid.
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* @param spanX The number of cells spanned horizontally by the child.
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* @param spanY The number of cells spanned vertically by the child.
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*/
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void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
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addInScreen(child, screen, x, y, spanX, spanY, false);
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}
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/**
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* Adds the specified child in the specified screen. The position and dimension of
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* the child are defined by x, y, spanX and spanY.
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*
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* @param child The child to add in one of the workspace's screens.
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* @param screen The screen in which to add the child.
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* @param x The X position of the child in the screen's grid.
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* @param y The Y position of the child in the screen's grid.
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* @param spanX The number of cells spanned horizontally by the child.
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* @param spanY The number of cells spanned vertically by the child.
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* @param insert When true, the child is inserted at the beginning of the children list.
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*/
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void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
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if (screen < 0 || screen >= getChildCount()) {
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throw new IllegalStateException("The screen must be >= 0 and < " + getChildCount());
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}
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clearVacantCache();
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final CellLayout group = (CellLayout) getChildAt(screen);
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
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if (lp == null) {
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lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
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} else {
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lp.cellX = x;
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lp.cellY = y;
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lp.cellHSpan = spanX;
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lp.cellVSpan = spanY;
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}
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group.addView(child, insert ? 0 : -1, lp);
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if (!(child instanceof Folder)) {
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child.setHapticFeedbackEnabled(false);
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child.setOnLongClickListener(mLongClickListener);
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}
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if (child instanceof DropTarget) {
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mDragController.addDropTarget((DropTarget)child);
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}
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}
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CellLayout.CellInfo findAllVacantCells(boolean[] occupied) {
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CellLayout group = (CellLayout) getChildAt(mCurrentScreen);
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if (group != null) {
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return group.findAllVacantCells(occupied, null);
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}
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return null;
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}
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private void clearVacantCache() {
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if (mVacantCache != null) {
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mVacantCache.clearVacantCells();
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mVacantCache = null;
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}
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}
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/**
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* Registers the specified listener on each screen contained in this workspace.
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*
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* @param l The listener used to respond to long clicks.
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*/
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@Override
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public void setOnLongClickListener(OnLongClickListener l) {
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mLongClickListener = l;
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final int count = getChildCount();
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for (int i = 0; i < count; i++) {
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getChildAt(i).setOnLongClickListener(l);
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}
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}
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private void updateWallpaperOffset() {
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updateWallpaperOffset(getChildAt(getChildCount() - 1).getRight() - (mRight - mLeft));
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}
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private void updateWallpaperOffset(int scrollRange) {
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mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 0 );
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mWallpaperManager.setWallpaperOffsets(getWindowToken(), mScrollX / (float) scrollRange, 0);
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}
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@Override
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public void computeScroll() {
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if (mScroller.computeScrollOffset()) {
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mScrollX = mScroller.getCurrX();
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mScrollY = mScroller.getCurrY();
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updateWallpaperOffset();
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postInvalidate();
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} else if (mNextScreen != INVALID_SCREEN) {
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mCurrentScreen = Math.max(0, Math.min(mNextScreen, getChildCount() - 1));
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mPreviousIndicator.setLevel(mCurrentScreen);
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mNextIndicator.setLevel(mCurrentScreen);
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Launcher.setScreen(mCurrentScreen);
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mNextScreen = INVALID_SCREEN;
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clearChildrenCache();
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}
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}
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@Override
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protected void dispatchDraw(Canvas canvas) {
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boolean restore = false;
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int restoreCount = 0;
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// ViewGroup.dispatchDraw() supports many features we don't need:
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// clip to padding, layout animation, animation listener, disappearing
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// children, etc. The following implementation attempts to fast-track
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// the drawing dispatch by drawing only what we know needs to be drawn.
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boolean fastDraw = mTouchState != TOUCH_STATE_SCROLLING && mNextScreen == INVALID_SCREEN;
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// If we are not scrolling or flinging, draw only the current screen
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if (fastDraw) {
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drawChild(canvas, getChildAt(mCurrentScreen), getDrawingTime());
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} else {
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final long drawingTime = getDrawingTime();
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// If we are flinging, draw only the current screen and the target screen
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if (mNextScreen >= 0 && mNextScreen < getChildCount() &&
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Math.abs(mCurrentScreen - mNextScreen) == 1) {
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drawChild(canvas, getChildAt(mCurrentScreen), drawingTime);
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drawChild(canvas, getChildAt(mNextScreen), drawingTime);
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} else {
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// If we are scrolling, draw all of our children
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final int count = getChildCount();
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for (int i = 0; i < count; i++) {
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drawChild(canvas, getChildAt(i), drawingTime);
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}
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}
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}
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if (restore) {
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canvas.restoreToCount(restoreCount);
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}
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}
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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mDragController.setWindowToken(getWindowToken());
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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final int width = MeasureSpec.getSize(widthMeasureSpec);
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final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
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if (widthMode != MeasureSpec.EXACTLY) {
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throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
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}
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final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
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if (heightMode != MeasureSpec.EXACTLY) {
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throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
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}
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// The children are given the same width and height as the workspace
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final int count = getChildCount();
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for (int i = 0; i < count; i++) {
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getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec);
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}
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if (mFirstLayout) {
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setHorizontalScrollBarEnabled(false);
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scrollTo(mCurrentScreen * width, 0);
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setHorizontalScrollBarEnabled(true);
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updateWallpaperOffset(width * (getChildCount() - 1));
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mFirstLayout = false;
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}
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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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int childLeft = 0;
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final int count = getChildCount();
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for (int i = 0; i < count; i++) {
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final View child = getChildAt(i);
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if (child.getVisibility() != View.GONE) {
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final int childWidth = child.getMeasuredWidth();
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child.layout(childLeft, 0, childLeft + childWidth, child.getMeasuredHeight());
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childLeft += childWidth;
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}
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}
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}
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@Override
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public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) {
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int screen = indexOfChild(child);
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if (screen != mCurrentScreen || !mScroller.isFinished()) {
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if (!mLauncher.isWorkspaceLocked()) {
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snapToScreen(screen);
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}
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return true;
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}
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return false;
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}
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@Override
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protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
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if (!mLauncher.isAllAppsVisible()) {
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final Folder openFolder = getOpenFolder();
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if (openFolder != null) {
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return openFolder.requestFocus(direction, previouslyFocusedRect);
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} else {
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int focusableScreen;
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if (mNextScreen != INVALID_SCREEN) {
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focusableScreen = mNextScreen;
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} else {
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focusableScreen = mCurrentScreen;
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}
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getChildAt(focusableScreen).requestFocus(direction, previouslyFocusedRect);
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}
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}
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return 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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if (direction == View.FOCUS_LEFT) {
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if (getCurrentScreen() > 0) {
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snapToScreen(getCurrentScreen() - 1);
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return true;
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}
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} else if (direction == View.FOCUS_RIGHT) {
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if (getCurrentScreen() < getChildCount() - 1) {
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snapToScreen(getCurrentScreen() + 1);
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return true;
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|
}
|
|
}
|
|
return super.dispatchUnhandledMove(focused, direction);
|
|
}
|
|
|
|
@Override
|
|
public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
|
|
if (!mLauncher.isAllAppsVisible()) {
|
|
final Folder openFolder = getOpenFolder();
|
|
if (openFolder == null) {
|
|
getChildAt(mCurrentScreen).addFocusables(views, direction);
|
|
if (direction == View.FOCUS_LEFT) {
|
|
if (mCurrentScreen > 0) {
|
|
getChildAt(mCurrentScreen - 1).addFocusables(views, direction);
|
|
}
|
|
} else if (direction == View.FOCUS_RIGHT){
|
|
if (mCurrentScreen < getChildCount() - 1) {
|
|
getChildAt(mCurrentScreen + 1).addFocusables(views, direction);
|
|
}
|
|
}
|
|
} else {
|
|
openFolder.addFocusables(views, direction);
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public boolean dispatchTouchEvent(MotionEvent ev) {
|
|
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
|
|
if (mLauncher.isWorkspaceLocked() || mLauncher.isAllAppsVisible()) {
|
|
return false;
|
|
}
|
|
}
|
|
return super.dispatchTouchEvent(ev);
|
|
}
|
|
|
|
@Override
|
|
public boolean onInterceptTouchEvent(MotionEvent ev) {
|
|
final boolean workspaceLocked = mLauncher.isWorkspaceLocked();
|
|
final boolean allAppsVisible = mLauncher.isAllAppsVisible();
|
|
if (workspaceLocked || allAppsVisible) {
|
|
return false; // We don't want the events. Let them fall through to the all apps view.
|
|
}
|
|
|
|
/*
|
|
* This method JUST determines whether we want to intercept the motion.
|
|
* If we return true, onTouchEvent will be called and we do the actual
|
|
* scrolling there.
|
|
*/
|
|
|
|
/*
|
|
* Shortcut the most recurring case: the user is in the dragging
|
|
* state and he is moving his finger. We want to intercept this
|
|
* motion.
|
|
*/
|
|
final int action = ev.getAction();
|
|
if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) {
|
|
return true;
|
|
}
|
|
|
|
final float x = ev.getX();
|
|
final float y = ev.getY();
|
|
|
|
switch (action) {
|
|
case MotionEvent.ACTION_MOVE:
|
|
/*
|
|
* mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
|
|
* whether the user has moved far enough from his original down touch.
|
|
*/
|
|
|
|
/*
|
|
* Locally do absolute value. mLastMotionX is set to the y value
|
|
* of the down event.
|
|
*/
|
|
final int xDiff = (int) Math.abs(x - mLastMotionX);
|
|
final int yDiff = (int) Math.abs(y - mLastMotionY);
|
|
|
|
final int touchSlop = mTouchSlop;
|
|
boolean xMoved = xDiff > touchSlop;
|
|
boolean yMoved = yDiff > touchSlop;
|
|
|
|
if (xMoved || yMoved) {
|
|
|
|
if (xMoved) {
|
|
// Scroll if the user moved far enough along the X axis
|
|
mTouchState = TOUCH_STATE_SCROLLING;
|
|
enableChildrenCache(mCurrentScreen - 1, mCurrentScreen + 1);
|
|
}
|
|
// Either way, cancel any pending longpress
|
|
if (mAllowLongPress) {
|
|
mAllowLongPress = false;
|
|
// Try canceling the long press. It could also have been scheduled
|
|
// by a distant descendant, so use the mAllowLongPress flag to block
|
|
// everything
|
|
final View currentScreen = getChildAt(mCurrentScreen);
|
|
currentScreen.cancelLongPress();
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MotionEvent.ACTION_DOWN:
|
|
// Remember location of down touch
|
|
mLastMotionX = x;
|
|
mLastMotionY = y;
|
|
mAllowLongPress = true;
|
|
|
|
/*
|
|
* If being flinged and user touches the screen, initiate drag;
|
|
* otherwise don't. mScroller.isFinished should be false when
|
|
* being flinged.
|
|
*/
|
|
mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING;
|
|
break;
|
|
|
|
case MotionEvent.ACTION_CANCEL:
|
|
case MotionEvent.ACTION_UP:
|
|
|
|
if (mTouchState != TOUCH_STATE_SCROLLING) {
|
|
|
|
final CellLayout currentScreen = (CellLayout)getChildAt(mCurrentScreen);
|
|
if (!currentScreen.lastDownOnOccupiedCell()) {
|
|
// Send a tap to the wallpaper if the last down was on empty space
|
|
mWallpaperManager.sendWallpaperCommand(getWindowToken(),
|
|
"android.wallpaper.tap", (int) ev.getX(), (int) ev.getY(), 0, null);
|
|
}
|
|
}
|
|
|
|
// Release the drag
|
|
clearChildrenCache();
|
|
mTouchState = TOUCH_STATE_REST;
|
|
mAllowLongPress = false;
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The only time we want to intercept motion events is if we are in the
|
|
* drag mode.
|
|
*/
|
|
return mTouchState != TOUCH_STATE_REST;
|
|
}
|
|
|
|
/**
|
|
* If one of our descendant views decides that it could be focused now, only
|
|
* pass that along if it's on the current screen.
|
|
*
|
|
* This happens when live folders requery, and if they're off screen, they
|
|
* end up calling requestFocus, which pulls it on screen.
|
|
*/
|
|
@Override
|
|
public void focusableViewAvailable(View focused) {
|
|
View current = getChildAt(mCurrentScreen);
|
|
View v = focused;
|
|
while (true) {
|
|
if (v == current) {
|
|
super.focusableViewAvailable(focused);
|
|
return;
|
|
}
|
|
if (v == this) {
|
|
return;
|
|
}
|
|
ViewParent parent = v.getParent();
|
|
if (parent instanceof View) {
|
|
v = (View)v.getParent();
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void enableChildrenCache(int fromScreen, int toScreen) {
|
|
if (fromScreen > toScreen) {
|
|
fromScreen = toScreen;
|
|
toScreen = fromScreen;
|
|
}
|
|
|
|
final int count = getChildCount();
|
|
|
|
fromScreen = Math.max(fromScreen, 0);
|
|
toScreen = Math.min(toScreen, count - 1);
|
|
|
|
for (int i = fromScreen; i <= toScreen; i++) {
|
|
final CellLayout layout = (CellLayout) getChildAt(i);
|
|
layout.setChildrenDrawnWithCacheEnabled(true);
|
|
layout.setChildrenDrawingCacheEnabled(true);
|
|
}
|
|
}
|
|
|
|
void clearChildrenCache() {
|
|
final int count = getChildCount();
|
|
for (int i = 0; i < count; i++) {
|
|
final CellLayout layout = (CellLayout) getChildAt(i);
|
|
layout.setChildrenDrawnWithCacheEnabled(false);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouchEvent(MotionEvent ev) {
|
|
|
|
if (mLauncher.isWorkspaceLocked()) {
|
|
return false; // We don't want the events. Let them fall through to the all apps view.
|
|
}
|
|
if (mLauncher.isAllAppsVisible()) {
|
|
// Cancel any scrolling that is in progress.
|
|
if (!mScroller.isFinished()) {
|
|
mScroller.abortAnimation();
|
|
}
|
|
snapToScreen(mCurrentScreen);
|
|
return false; // We don't want the events. Let them fall through to the all apps view.
|
|
}
|
|
|
|
if (mVelocityTracker == null) {
|
|
mVelocityTracker = VelocityTracker.obtain();
|
|
}
|
|
mVelocityTracker.addMovement(ev);
|
|
|
|
final int action = ev.getAction();
|
|
final float x = ev.getX();
|
|
|
|
switch (action) {
|
|
case MotionEvent.ACTION_DOWN:
|
|
/*
|
|
* If being flinged and user touches, stop the fling. isFinished
|
|
* will be false if being flinged.
|
|
*/
|
|
if (!mScroller.isFinished()) {
|
|
mScroller.abortAnimation();
|
|
}
|
|
|
|
// Remember where the motion event started
|
|
mLastMotionX = x;
|
|
break;
|
|
case MotionEvent.ACTION_MOVE:
|
|
if (mTouchState == TOUCH_STATE_SCROLLING) {
|
|
// Scroll to follow the motion event
|
|
final int deltaX = (int) (mLastMotionX - x);
|
|
mLastMotionX = x;
|
|
|
|
if (deltaX < 0) {
|
|
if (mScrollX > 0) {
|
|
scrollBy(Math.max(-mScrollX, deltaX), 0);
|
|
updateWallpaperOffset();
|
|
}
|
|
} else if (deltaX > 0) {
|
|
final int availableToScroll = getChildAt(getChildCount() - 1).getRight() -
|
|
mScrollX - getWidth();
|
|
if (availableToScroll > 0) {
|
|
scrollBy(Math.min(availableToScroll, deltaX), 0);
|
|
updateWallpaperOffset();
|
|
}
|
|
} else {
|
|
awakenScrollBars();
|
|
}
|
|
}
|
|
break;
|
|
case MotionEvent.ACTION_UP:
|
|
if (mTouchState == TOUCH_STATE_SCROLLING) {
|
|
final VelocityTracker velocityTracker = mVelocityTracker;
|
|
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
|
|
int velocityX = (int) velocityTracker.getXVelocity();
|
|
|
|
if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
|
|
// Fling hard enough to move left
|
|
snapToScreen(mCurrentScreen - 1);
|
|
} else if (velocityX < -SNAP_VELOCITY && mCurrentScreen < getChildCount() - 1) {
|
|
// Fling hard enough to move right
|
|
snapToScreen(mCurrentScreen + 1);
|
|
} else {
|
|
snapToDestination();
|
|
}
|
|
|
|
if (mVelocityTracker != null) {
|
|
mVelocityTracker.recycle();
|
|
mVelocityTracker = null;
|
|
}
|
|
}
|
|
mTouchState = TOUCH_STATE_REST;
|
|
break;
|
|
case MotionEvent.ACTION_CANCEL:
|
|
mTouchState = TOUCH_STATE_REST;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private void snapToDestination() {
|
|
final int screenWidth = getWidth();
|
|
final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
|
|
|
|
snapToScreen(whichScreen);
|
|
}
|
|
|
|
void snapToScreen(int whichScreen) {
|
|
snapToScreen(whichScreen, true);
|
|
}
|
|
|
|
void snapToScreen(int whichScreen, boolean animate) {
|
|
//if (!mScroller.isFinished()) return;
|
|
|
|
whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
|
|
|
|
clearVacantCache();
|
|
enableChildrenCache(mCurrentScreen, whichScreen);
|
|
|
|
final int screenDelta = Math.abs(whichScreen - mCurrentScreen);
|
|
|
|
mNextScreen = whichScreen;
|
|
|
|
mPreviousIndicator.setLevel(mNextScreen);
|
|
mNextIndicator.setLevel(mNextScreen);
|
|
|
|
View focusedChild = getFocusedChild();
|
|
if (focusedChild != null && screenDelta != 0 && focusedChild == getChildAt(mCurrentScreen)) {
|
|
focusedChild.clearFocus();
|
|
}
|
|
|
|
final int newX = whichScreen * getWidth();
|
|
final int delta = newX - mScrollX;
|
|
final int duration = screenDelta * 300;
|
|
awakenScrollBars(duration);
|
|
|
|
// 1ms is close to don't animate
|
|
if (!mScroller.isFinished()) mScroller.abortAnimation();
|
|
mScroller.startScroll(mScrollX, 0, delta, 0, animate ? duration : 1);
|
|
invalidate();
|
|
}
|
|
|
|
void startDrag(CellLayout.CellInfo cellInfo) {
|
|
View child = cellInfo.cell;
|
|
|
|
// Make sure the drag was started by a long press as opposed to a long click.
|
|
if (!child.isInTouchMode()) {
|
|
return;
|
|
}
|
|
|
|
mDragInfo = cellInfo;
|
|
mDragInfo.screen = mCurrentScreen;
|
|
|
|
CellLayout current = ((CellLayout) getChildAt(mCurrentScreen));
|
|
|
|
current.onDragChild(child);
|
|
mDragController.startDrag(child, this, child.getTag(), DragController.DRAG_ACTION_MOVE);
|
|
invalidate();
|
|
}
|
|
|
|
@Override
|
|
protected Parcelable onSaveInstanceState() {
|
|
final SavedState state = new SavedState(super.onSaveInstanceState());
|
|
state.currentScreen = mCurrentScreen;
|
|
return state;
|
|
}
|
|
|
|
@Override
|
|
protected void onRestoreInstanceState(Parcelable state) {
|
|
SavedState savedState = (SavedState) state;
|
|
super.onRestoreInstanceState(savedState.getSuperState());
|
|
if (savedState.currentScreen != -1) {
|
|
mCurrentScreen = savedState.currentScreen;
|
|
Launcher.setScreen(mCurrentScreen);
|
|
}
|
|
}
|
|
|
|
void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo) {
|
|
addApplicationShortcut(info, cellInfo, false);
|
|
}
|
|
|
|
void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo,
|
|
boolean insertAtFirst) {
|
|
final CellLayout layout = (CellLayout) getChildAt(cellInfo.screen);
|
|
final int[] result = new int[2];
|
|
|
|
layout.cellToPoint(cellInfo.cellX, cellInfo.cellY, result);
|
|
onDropExternal(result[0], result[1], info, layout, insertAtFirst);
|
|
}
|
|
|
|
public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
|
|
DragView dragView, Object dragInfo) {
|
|
final CellLayout cellLayout = getCurrentDropLayout();
|
|
if (source != this) {
|
|
onDropExternal(x - xOffset, y - yOffset, dragInfo, cellLayout);
|
|
} else {
|
|
// Move internally
|
|
if (mDragInfo != null) {
|
|
final View cell = mDragInfo.cell;
|
|
int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
|
|
if (index != mDragInfo.screen) {
|
|
final CellLayout originalCellLayout = (CellLayout) getChildAt(mDragInfo.screen);
|
|
originalCellLayout.removeView(cell);
|
|
cellLayout.addView(cell);
|
|
}
|
|
mTargetCell = estimateDropCell(x - xOffset, y - yOffset,
|
|
mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout, mTargetCell);
|
|
cellLayout.onDropChild(cell, mTargetCell);
|
|
|
|
final ItemInfo info = (ItemInfo) cell.getTag();
|
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
|
|
LauncherModel.moveItemInDatabase(mLauncher, info,
|
|
LauncherSettings.Favorites.CONTAINER_DESKTOP, index, lp.cellX, lp.cellY);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
|
|
DragView dragView, Object dragInfo) {
|
|
clearVacantCache();
|
|
}
|
|
|
|
public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
|
|
DragView dragView, Object dragInfo) {
|
|
}
|
|
|
|
public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
|
|
DragView dragView, Object dragInfo) {
|
|
clearVacantCache();
|
|
}
|
|
|
|
private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout) {
|
|
onDropExternal(x, y, dragInfo, cellLayout, false);
|
|
}
|
|
|
|
private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout,
|
|
boolean insertAtFirst) {
|
|
// Drag from somewhere else
|
|
ItemInfo info = (ItemInfo) dragInfo;
|
|
|
|
View view;
|
|
|
|
switch (info.itemType) {
|
|
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
|
|
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
|
|
if (info.container == NO_ID) {
|
|
// Came from all apps -- make a copy
|
|
info = new ApplicationInfo((ApplicationInfo) info);
|
|
}
|
|
view = mLauncher.createShortcut(R.layout.application, cellLayout,
|
|
(ApplicationInfo) info);
|
|
break;
|
|
case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
|
|
view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
|
|
(ViewGroup) getChildAt(mCurrentScreen), ((UserFolderInfo) info));
|
|
break;
|
|
default:
|
|
throw new IllegalStateException("Unknown item type: " + info.itemType);
|
|
}
|
|
|
|
cellLayout.addView(view, insertAtFirst ? 0 : -1);
|
|
view.setHapticFeedbackEnabled(false);
|
|
view.setOnLongClickListener(mLongClickListener);
|
|
if (view instanceof DropTarget) {
|
|
mDragController.addDropTarget((DropTarget) view);
|
|
}
|
|
|
|
mTargetCell = estimateDropCell(x, y, 1, 1, view, cellLayout, mTargetCell);
|
|
cellLayout.onDropChild(view, mTargetCell);
|
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
|
|
|
|
LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
|
|
LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentScreen, lp.cellX, lp.cellY);
|
|
}
|
|
|
|
/**
|
|
* Return the current {@link CellLayout}, correctly picking the destination
|
|
* screen while a scroll is in progress.
|
|
*/
|
|
private CellLayout getCurrentDropLayout() {
|
|
int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
|
|
return (CellLayout) getChildAt(index);
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public boolean acceptDrop(DragSource source, int x, int y,
|
|
int xOffset, int yOffset, DragView dragView, Object dragInfo) {
|
|
final CellLayout layout = getCurrentDropLayout();
|
|
final CellLayout.CellInfo cellInfo = mDragInfo;
|
|
final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
|
|
final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
|
|
|
|
if (mVacantCache == null) {
|
|
final View ignoreView = cellInfo == null ? null : cellInfo.cell;
|
|
mVacantCache = layout.findAllVacantCells(null, ignoreView);
|
|
}
|
|
|
|
return mVacantCache.findCellForSpan(mTempEstimate, spanX, spanY, false);
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public Rect estimateDropLocation(DragSource source, int x, int y,
|
|
int xOffset, int yOffset, DragView dragView, Object dragInfo, Rect recycle) {
|
|
final CellLayout layout = getCurrentDropLayout();
|
|
|
|
final CellLayout.CellInfo cellInfo = mDragInfo;
|
|
final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
|
|
final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
|
|
final View ignoreView = cellInfo == null ? null : cellInfo.cell;
|
|
|
|
final Rect location = recycle != null ? recycle : new Rect();
|
|
|
|
// Find drop cell and convert into rectangle
|
|
int[] dropCell = estimateDropCell(x - xOffset, y - yOffset,
|
|
spanX, spanY, ignoreView, layout, mTempCell);
|
|
|
|
if (dropCell == null) {
|
|
return null;
|
|
}
|
|
|
|
layout.cellToPoint(dropCell[0], dropCell[1], mTempEstimate);
|
|
location.left = mTempEstimate[0];
|
|
location.top = mTempEstimate[1];
|
|
|
|
layout.cellToPoint(dropCell[0] + spanX, dropCell[1] + spanY, mTempEstimate);
|
|
location.right = mTempEstimate[0];
|
|
location.bottom = mTempEstimate[1];
|
|
|
|
return location;
|
|
}
|
|
|
|
/**
|
|
* Calculate the nearest cell where the given object would be dropped.
|
|
*/
|
|
private int[] estimateDropCell(int pixelX, int pixelY,
|
|
int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
|
|
// Create vacant cell cache if none exists
|
|
if (mVacantCache == null) {
|
|
mVacantCache = layout.findAllVacantCells(null, ignoreView);
|
|
}
|
|
|
|
// Find the best target drop location
|
|
return layout.findNearestVacantArea(pixelX, pixelY,
|
|
spanX, spanY, mVacantCache, recycle);
|
|
}
|
|
|
|
void setLauncher(Launcher launcher) {
|
|
mLauncher = launcher;
|
|
}
|
|
|
|
public void setDragController(DragController dragController) {
|
|
mDragController = dragController;
|
|
}
|
|
|
|
public void onDropCompleted(View target, boolean success) {
|
|
clearVacantCache();
|
|
|
|
if (success){
|
|
if (target != this && mDragInfo != null) {
|
|
final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
|
|
cellLayout.removeView(mDragInfo.cell);
|
|
if (mDragInfo.cell instanceof DropTarget) {
|
|
mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
|
|
}
|
|
//final Object tag = mDragInfo.cell.getTag();
|
|
}
|
|
} else {
|
|
if (mDragInfo != null) {
|
|
final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
|
|
cellLayout.onDropAborted(mDragInfo.cell);
|
|
}
|
|
}
|
|
|
|
mDragInfo = null;
|
|
}
|
|
|
|
public void scrollLeft() {
|
|
clearVacantCache();
|
|
if (mScroller.isFinished()) {
|
|
if (mCurrentScreen > 0) snapToScreen(mCurrentScreen - 1);
|
|
} else {
|
|
if (mNextScreen > 0) snapToScreen(mNextScreen - 1);
|
|
}
|
|
}
|
|
|
|
public void scrollRight() {
|
|
clearVacantCache();
|
|
if (mScroller.isFinished()) {
|
|
if (mCurrentScreen < getChildCount() -1) snapToScreen(mCurrentScreen + 1);
|
|
} else {
|
|
if (mNextScreen < getChildCount() -1) snapToScreen(mNextScreen + 1);
|
|
}
|
|
}
|
|
|
|
public int getScreenForView(View v) {
|
|
int result = -1;
|
|
if (v != null) {
|
|
ViewParent vp = v.getParent();
|
|
int count = getChildCount();
|
|
for (int i = 0; i < count; i++) {
|
|
if (vp == getChildAt(i)) {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public Folder getFolderForTag(Object tag) {
|
|
int screenCount = getChildCount();
|
|
for (int screen = 0; screen < screenCount; screen++) {
|
|
CellLayout currentScreen = ((CellLayout) getChildAt(screen));
|
|
int count = currentScreen.getChildCount();
|
|
for (int i = 0; i < count; i++) {
|
|
View child = currentScreen.getChildAt(i);
|
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
|
|
if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
|
|
Folder f = (Folder) child;
|
|
if (f.getInfo() == tag) {
|
|
return f;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public View getViewForTag(Object tag) {
|
|
int screenCount = getChildCount();
|
|
for (int screen = 0; screen < screenCount; screen++) {
|
|
CellLayout currentScreen = ((CellLayout) getChildAt(screen));
|
|
int count = currentScreen.getChildCount();
|
|
for (int i = 0; i < count; i++) {
|
|
View child = currentScreen.getChildAt(i);
|
|
if (child.getTag() == tag) {
|
|
return child;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @return True is long presses are still allowed for the current touch
|
|
*/
|
|
public boolean allowLongPress() {
|
|
return mAllowLongPress;
|
|
}
|
|
|
|
/**
|
|
* Set true to allow long-press events to be triggered, usually checked by
|
|
* {@link Launcher} to accept or block dpad-initiated long-presses.
|
|
*/
|
|
public void setAllowLongPress(boolean allowLongPress) {
|
|
mAllowLongPress = allowLongPress;
|
|
}
|
|
|
|
void removeShortcutsForPackage(String packageName) {
|
|
final ArrayList<View> childrenToRemove = new ArrayList<View>();
|
|
final int count = getChildCount();
|
|
|
|
for (int i = 0; i < count; i++) {
|
|
final CellLayout layout = (CellLayout) getChildAt(i);
|
|
int childCount = layout.getChildCount();
|
|
|
|
childrenToRemove.clear();
|
|
|
|
for (int j = 0; j < childCount; j++) {
|
|
final View view = layout.getChildAt(j);
|
|
Object tag = view.getTag();
|
|
|
|
if (tag instanceof ApplicationInfo) {
|
|
final ApplicationInfo info = (ApplicationInfo) tag;
|
|
// We need to check for ACTION_MAIN otherwise getComponent() might
|
|
// return null for some shortcuts (for instance, for shortcuts to
|
|
// web pages.)
|
|
final Intent intent = info.intent;
|
|
final ComponentName name = intent.getComponent();
|
|
|
|
if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
|
|
name != null && packageName.equals(name.getPackageName())) {
|
|
LauncherModel.deleteItemFromDatabase(mLauncher, info);
|
|
childrenToRemove.add(view);
|
|
}
|
|
} else if (tag instanceof UserFolderInfo) {
|
|
final UserFolderInfo info = (UserFolderInfo) tag;
|
|
final ArrayList<ApplicationInfo> contents = info.contents;
|
|
final ArrayList<ApplicationInfo> toRemove = new ArrayList<ApplicationInfo>(1);
|
|
final int contentsCount = contents.size();
|
|
boolean removedFromFolder = false;
|
|
|
|
for (int k = 0; k < contentsCount; k++) {
|
|
final ApplicationInfo appInfo = contents.get(k);
|
|
final Intent intent = appInfo.intent;
|
|
final ComponentName name = intent.getComponent();
|
|
|
|
if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
|
|
name != null && packageName.equals(name.getPackageName())) {
|
|
toRemove.add(appInfo);
|
|
LauncherModel.deleteItemFromDatabase(mLauncher, appInfo);
|
|
removedFromFolder = true;
|
|
}
|
|
}
|
|
|
|
contents.removeAll(toRemove);
|
|
if (removedFromFolder) {
|
|
final Folder folder = getOpenFolder();
|
|
if (folder != null) folder.notifyDataSetChanged();
|
|
}
|
|
}
|
|
}
|
|
|
|
childCount = childrenToRemove.size();
|
|
for (int j = 0; j < childCount; j++) {
|
|
View child = childrenToRemove.get(j);
|
|
layout.removeViewInLayout(child);
|
|
if (child instanceof DropTarget) {
|
|
mDragController.removeDropTarget((DropTarget)child);
|
|
}
|
|
}
|
|
|
|
if (childCount > 0) {
|
|
layout.requestLayout();
|
|
layout.invalidate();
|
|
}
|
|
}
|
|
}
|
|
|
|
void updateShortcutsForPackage(String packageName) {
|
|
final PackageManager pm = mLauncher.getPackageManager();
|
|
|
|
final int count = getChildCount();
|
|
for (int i = 0; i < count; i++) {
|
|
final CellLayout layout = (CellLayout) getChildAt(i);
|
|
int childCount = layout.getChildCount();
|
|
for (int j = 0; j < childCount; j++) {
|
|
final View view = layout.getChildAt(j);
|
|
Object tag = view.getTag();
|
|
if (tag instanceof ApplicationInfo) {
|
|
ApplicationInfo info = (ApplicationInfo) tag;
|
|
// We need to check for ACTION_MAIN otherwise getComponent() might
|
|
// return null for some shortcuts (for instance, for shortcuts to
|
|
// web pages.)
|
|
final Intent intent = info.intent;
|
|
final ComponentName name = intent.getComponent();
|
|
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
|
|
Intent.ACTION_MAIN.equals(intent.getAction()) && name != null &&
|
|
packageName.equals(name.getPackageName())) {
|
|
|
|
final Drawable icon = AppInfoCache.getIconDrawable(pm, info);
|
|
if (icon != null && icon != info.icon) {
|
|
info.icon.setCallback(null);
|
|
info.icon = Utilities.createIconThumbnail(icon, mContext);
|
|
info.filtered = true;
|
|
((TextView) view).setCompoundDrawablesWithIntrinsicBounds(null,
|
|
info.icon, null, null);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void moveToDefaultScreen(boolean animate) {
|
|
snapToScreen(mDefaultScreen, animate);
|
|
getChildAt(mDefaultScreen).requestFocus();
|
|
}
|
|
|
|
void setIndicators(Drawable previous, Drawable next) {
|
|
mPreviousIndicator = previous;
|
|
mNextIndicator = next;
|
|
previous.setLevel(mCurrentScreen);
|
|
next.setLevel(mCurrentScreen);
|
|
}
|
|
|
|
public static class SavedState extends BaseSavedState {
|
|
int currentScreen = -1;
|
|
|
|
SavedState(Parcelable superState) {
|
|
super(superState);
|
|
}
|
|
|
|
private SavedState(Parcel in) {
|
|
super(in);
|
|
currentScreen = in.readInt();
|
|
}
|
|
|
|
@Override
|
|
public void writeToParcel(Parcel out, int flags) {
|
|
super.writeToParcel(out, flags);
|
|
out.writeInt(currentScreen);
|
|
}
|
|
|
|
public static final Parcelable.Creator<SavedState> CREATOR =
|
|
new Parcelable.Creator<SavedState>() {
|
|
public SavedState createFromParcel(Parcel in) {
|
|
return new SavedState(in);
|
|
}
|
|
|
|
public SavedState[] newArray(int size) {
|
|
return new SavedState[size];
|
|
}
|
|
};
|
|
}
|
|
}
|