Sunny Goyal
c64cfdd8fa
framework page indicator (used in quick settings) The active page is indicated with the accent color. During scroll the active indicator expands to 2 dots corresponding to the visible pages. Change-Id: Iaf57836b642cf87e5eed98048ecca7dd8e7643a4
679 lines
24 KiB
Java
679 lines
24 KiB
Java
/**
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* Copyright (C) 2015 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.folder;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewDebug;
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import android.view.animation.DecelerateInterpolator;
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import com.android.launcher3.BubbleTextView;
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import com.android.launcher3.CellLayout;
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import com.android.launcher3.DeviceProfile;
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import com.android.launcher3.FocusHelper.PagedFolderKeyEventListener;
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import com.android.launcher3.FocusIndicatorView;
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import com.android.launcher3.IconCache;
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import com.android.launcher3.InvariantDeviceProfile;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.LauncherAppState;
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import com.android.launcher3.LauncherModel;
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import com.android.launcher3.PagedView;
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import com.android.launcher3.R;
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import com.android.launcher3.ShortcutAndWidgetContainer;
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import com.android.launcher3.ShortcutInfo;
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import com.android.launcher3.Utilities;
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import com.android.launcher3.Workspace.ItemOperator;
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import com.android.launcher3.dragndrop.DragController;
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import com.android.launcher3.pageindicators.PageIndicator;
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import com.android.launcher3.util.Thunk;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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public class FolderPagedView extends PagedView {
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private static final String TAG = "FolderPagedView";
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private static final boolean ALLOW_FOLDER_SCROLL = true;
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private static final int REORDER_ANIMATION_DURATION = 230;
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private static final int START_VIEW_REORDER_DELAY = 30;
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private static final float VIEW_REORDER_DELAY_FACTOR = 0.9f;
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/**
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* Fraction of the width to scroll when showing the next page hint.
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*/
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private static final float SCROLL_HINT_FRACTION = 0.07f;
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private static final int[] sTempPosArray = new int[2];
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public final boolean mIsRtl;
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private final LayoutInflater mInflater;
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private final IconCache mIconCache;
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@Thunk final HashMap<View, Runnable> mPendingAnimations = new HashMap<>();
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@ViewDebug.ExportedProperty(category = "launcher")
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private final int mMaxCountX;
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@ViewDebug.ExportedProperty(category = "launcher")
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private final int mMaxCountY;
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@ViewDebug.ExportedProperty(category = "launcher")
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private final int mMaxItemsPerPage;
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private int mAllocatedContentSize;
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@ViewDebug.ExportedProperty(category = "launcher")
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private int mGridCountX;
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@ViewDebug.ExportedProperty(category = "launcher")
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private int mGridCountY;
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private Folder mFolder;
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private FocusIndicatorView mFocusIndicatorView;
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private PagedFolderKeyEventListener mKeyListener;
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private PageIndicator mPageIndicator;
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public FolderPagedView(Context context, AttributeSet attrs) {
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super(context, attrs);
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LauncherAppState app = LauncherAppState.getInstance();
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InvariantDeviceProfile profile = app.getInvariantDeviceProfile();
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mMaxCountX = profile.numFolderColumns;
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mMaxCountY = profile.numFolderRows;
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mMaxItemsPerPage = mMaxCountX * mMaxCountY;
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mInflater = LayoutInflater.from(context);
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mIconCache = app.getIconCache();
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mIsRtl = Utilities.isRtl(getResources());
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setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
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setEdgeGlowColor(getResources().getColor(R.color.folder_edge_effect_color));
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}
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public void setFolder(Folder folder) {
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mFolder = folder;
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mFocusIndicatorView = (FocusIndicatorView) folder.findViewById(R.id.focus_indicator);
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mKeyListener = new PagedFolderKeyEventListener(folder);
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mPageIndicator = (PageIndicator) folder.findViewById(R.id.folder_page_indicator);
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}
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/**
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* Sets up the grid size such that {@param count} items can fit in the grid.
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* The grid size is calculated such that countY <= countX and countX = ceil(sqrt(count)) while
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* maintaining the restrictions of {@link #mMaxCountX} & {@link #mMaxCountY}.
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*/
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private void setupContentDimensions(int count) {
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mAllocatedContentSize = count;
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boolean done;
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if (count >= mMaxItemsPerPage) {
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mGridCountX = mMaxCountX;
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mGridCountY = mMaxCountY;
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done = true;
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} else {
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done = false;
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}
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while (!done) {
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int oldCountX = mGridCountX;
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int oldCountY = mGridCountY;
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if (mGridCountX * mGridCountY < count) {
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// Current grid is too small, expand it
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if ((mGridCountX <= mGridCountY || mGridCountY == mMaxCountY) && mGridCountX < mMaxCountX) {
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mGridCountX++;
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} else if (mGridCountY < mMaxCountY) {
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mGridCountY++;
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}
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if (mGridCountY == 0) mGridCountY++;
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} else if ((mGridCountY - 1) * mGridCountX >= count && mGridCountY >= mGridCountX) {
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mGridCountY = Math.max(0, mGridCountY - 1);
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} else if ((mGridCountX - 1) * mGridCountY >= count) {
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mGridCountX = Math.max(0, mGridCountX - 1);
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}
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done = mGridCountX == oldCountX && mGridCountY == oldCountY;
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}
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// Update grid size
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for (int i = getPageCount() - 1; i >= 0; i--) {
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getPageAt(i).setGridSize(mGridCountX, mGridCountY);
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}
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}
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/**
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* Binds items to the layout.
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* @return list of items that could not be bound, probably because we hit the max size limit.
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*/
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public ArrayList<ShortcutInfo> bindItems(ArrayList<ShortcutInfo> items) {
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ArrayList<View> icons = new ArrayList<View>();
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ArrayList<ShortcutInfo> extra = new ArrayList<ShortcutInfo>();
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for (ShortcutInfo item : items) {
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if (!ALLOW_FOLDER_SCROLL && icons.size() >= mMaxItemsPerPage) {
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extra.add(item);
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} else {
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icons.add(createNewView(item));
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}
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}
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arrangeChildren(icons, icons.size(), false);
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return extra;
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}
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/**
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* Create space for a new item at the end, and returns the rank for that item.
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* Also sets the current page to the last page.
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*/
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public int allocateRankForNewItem(ShortcutInfo info) {
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int rank = getItemCount();
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ArrayList<View> views = new ArrayList<View>(mFolder.getItemsInReadingOrder());
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views.add(rank, null);
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arrangeChildren(views, views.size(), false);
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setCurrentPage(rank / mMaxItemsPerPage);
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return rank;
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}
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public View createAndAddViewForRank(ShortcutInfo item, int rank) {
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View icon = createNewView(item);
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addViewForRank(icon, item, rank);
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return icon;
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}
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/**
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* Adds the {@param view} to the layout based on {@param rank} and updated the position
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* related attributes. It assumes that {@param item} is already attached to the view.
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*/
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public void addViewForRank(View view, ShortcutInfo item, int rank) {
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int pagePos = rank % mMaxItemsPerPage;
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int pageNo = rank / mMaxItemsPerPage;
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item.rank = rank;
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item.cellX = pagePos % mGridCountX;
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item.cellY = pagePos / mGridCountX;
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
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lp.cellX = item.cellX;
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lp.cellY = item.cellY;
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getPageAt(pageNo).addViewToCellLayout(
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view, -1, mFolder.mLauncher.getViewIdForItem(item), lp, true);
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}
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@SuppressLint("InflateParams")
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public View createNewView(ShortcutInfo item) {
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final BubbleTextView textView = (BubbleTextView) mInflater.inflate(
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R.layout.folder_application, null, false);
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textView.applyFromShortcutInfo(item, mIconCache);
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textView.setOnClickListener(mFolder);
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textView.setOnLongClickListener(mFolder);
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textView.setOnFocusChangeListener(mFocusIndicatorView);
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textView.setOnKeyListener(mKeyListener);
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textView.setLayoutParams(new CellLayout.LayoutParams(
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item.cellX, item.cellY, item.spanX, item.spanY));
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return textView;
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}
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@Override
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public CellLayout getPageAt(int index) {
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return (CellLayout) getChildAt(index);
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}
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public CellLayout getCurrentCellLayout() {
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return getPageAt(getNextPage());
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}
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private CellLayout createAndAddNewPage() {
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DeviceProfile grid = ((Launcher) getContext()).getDeviceProfile();
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CellLayout page = new CellLayout(getContext());
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page.setCellDimensions(grid.folderCellWidthPx, grid.folderCellHeightPx);
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page.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false);
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page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
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page.setInvertIfRtl(true);
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page.setGridSize(mGridCountX, mGridCountY);
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addView(page, -1, generateDefaultLayoutParams());
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return page;
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}
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@Override
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protected int getChildGap() {
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return getPaddingLeft() + getPaddingRight();
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}
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public void setFixedSize(int width, int height) {
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width -= (getPaddingLeft() + getPaddingRight());
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height -= (getPaddingTop() + getPaddingBottom());
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for (int i = getChildCount() - 1; i >= 0; i --) {
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((CellLayout) getChildAt(i)).setFixedSize(width, height);
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}
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}
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public void removeItem(View v) {
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for (int i = getChildCount() - 1; i >= 0; i --) {
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getPageAt(i).removeView(v);
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}
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}
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@Override
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protected void onScrollChanged(int l, int t, int oldl, int oldt) {
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super.onScrollChanged(l, t, oldl, oldt);
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mPageIndicator.setScroll(l, mMaxScrollX);
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}
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/**
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* Updates position and rank of all the children in the view.
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* It essentially removes all views from all the pages and then adds them again in appropriate
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* page.
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*
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* @param list the ordered list of children.
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* @param itemCount if greater than the total children count, empty spaces are left
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* at the end, otherwise it is ignored.
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*
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*/
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public void arrangeChildren(ArrayList<View> list, int itemCount) {
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arrangeChildren(list, itemCount, true);
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}
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@SuppressLint("RtlHardcoded")
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private void arrangeChildren(ArrayList<View> list, int itemCount, boolean saveChanges) {
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ArrayList<CellLayout> pages = new ArrayList<CellLayout>();
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for (int i = 0; i < getChildCount(); i++) {
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CellLayout page = (CellLayout) getChildAt(i);
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page.removeAllViews();
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pages.add(page);
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}
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setupContentDimensions(itemCount);
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Iterator<CellLayout> pageItr = pages.iterator();
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CellLayout currentPage = null;
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int position = 0;
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int newX, newY, rank;
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rank = 0;
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for (int i = 0; i < itemCount; i++) {
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View v = list.size() > i ? list.get(i) : null;
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if (currentPage == null || position >= mMaxItemsPerPage) {
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// Next page
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if (pageItr.hasNext()) {
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currentPage = pageItr.next();
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} else {
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currentPage = createAndAddNewPage();
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}
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position = 0;
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}
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if (v != null) {
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams();
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newX = position % mGridCountX;
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newY = position / mGridCountX;
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ItemInfo info = (ItemInfo) v.getTag();
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if (info.cellX != newX || info.cellY != newY || info.rank != rank) {
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info.cellX = newX;
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info.cellY = newY;
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info.rank = rank;
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if (saveChanges) {
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LauncherModel.addOrMoveItemInDatabase(getContext(), info,
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mFolder.mInfo.id, 0, info.cellX, info.cellY);
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}
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}
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lp.cellX = info.cellX;
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lp.cellY = info.cellY;
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currentPage.addViewToCellLayout(
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v, -1, mFolder.mLauncher.getViewIdForItem(info), lp, true);
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if (rank < FolderIcon.NUM_ITEMS_IN_PREVIEW && v instanceof BubbleTextView) {
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((BubbleTextView) v).verifyHighRes();
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}
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}
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rank ++;
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position++;
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}
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// Remove extra views.
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boolean removed = false;
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while (pageItr.hasNext()) {
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removeView(pageItr.next());
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removed = true;
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}
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if (removed) {
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setCurrentPage(0);
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}
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setEnableOverscroll(getPageCount() > 1);
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// Update footer
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mPageIndicator.getView().setVisibility(getPageCount() > 1 ? View.VISIBLE : View.GONE);
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// Set the gravity as LEFT or RIGHT instead of START, as START depends on the actual text.
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mFolder.mFolderName.setGravity(getPageCount() > 1 ?
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(mIsRtl ? Gravity.RIGHT : Gravity.LEFT) : Gravity.CENTER_HORIZONTAL);
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}
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public int getDesiredWidth() {
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return getPageCount() > 0 ?
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(getPageAt(0).getDesiredWidth() + getPaddingLeft() + getPaddingRight()) : 0;
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}
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public int getDesiredHeight() {
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return getPageCount() > 0 ?
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(getPageAt(0).getDesiredHeight() + getPaddingTop() + getPaddingBottom()) : 0;
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}
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public int getItemCount() {
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int lastPageIndex = getChildCount() - 1;
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if (lastPageIndex < 0) {
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// If there are no pages, nothing has yet been added to the folder.
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return 0;
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}
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return getPageAt(lastPageIndex).getShortcutsAndWidgets().getChildCount()
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+ lastPageIndex * mMaxItemsPerPage;
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}
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/**
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* @return the rank of the cell nearest to the provided pixel position.
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*/
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public int findNearestArea(int pixelX, int pixelY) {
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int pageIndex = getNextPage();
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CellLayout page = getPageAt(pageIndex);
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page.findNearestArea(pixelX, pixelY, 1, 1, sTempPosArray);
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if (mFolder.isLayoutRtl()) {
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sTempPosArray[0] = page.getCountX() - sTempPosArray[0] - 1;
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}
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return Math.min(mAllocatedContentSize - 1,
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pageIndex * mMaxItemsPerPage + sTempPosArray[1] * mGridCountX + sTempPosArray[0]);
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}
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public boolean isFull() {
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return !ALLOW_FOLDER_SCROLL && getItemCount() >= mMaxItemsPerPage;
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}
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public View getFirstItem() {
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if (getChildCount() < 1) {
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return null;
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}
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ShortcutAndWidgetContainer currContainer = getCurrentCellLayout().getShortcutsAndWidgets();
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if (mGridCountX > 0) {
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return currContainer.getChildAt(0, 0);
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} else {
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return currContainer.getChildAt(0);
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}
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}
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public View getLastItem() {
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if (getChildCount() < 1) {
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return null;
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}
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ShortcutAndWidgetContainer currContainer = getCurrentCellLayout().getShortcutsAndWidgets();
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int lastRank = currContainer.getChildCount() - 1;
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if (mGridCountX > 0) {
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return currContainer.getChildAt(lastRank % mGridCountX, lastRank / mGridCountX);
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} else {
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return currContainer.getChildAt(lastRank);
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}
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}
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/**
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* Iterates over all its items in a reading order.
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* @return the view for which the operator returned true.
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*/
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public View iterateOverItems(ItemOperator op) {
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for (int k = 0 ; k < getChildCount(); k++) {
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CellLayout page = getPageAt(k);
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for (int j = 0; j < page.getCountY(); j++) {
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for (int i = 0; i < page.getCountX(); i++) {
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View v = page.getChildAt(i, j);
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if ((v != null) && op.evaluate((ItemInfo) v.getTag(), v)) {
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return v;
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}
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}
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}
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}
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return null;
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}
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public String getAccessibilityDescription() {
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return getContext().getString(R.string.folder_opened, mGridCountX, mGridCountY);
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}
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/**
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* Sets the focus on the first visible child.
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*/
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public void setFocusOnFirstChild() {
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View firstChild = getCurrentCellLayout().getChildAt(0, 0);
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if (firstChild != null) {
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firstChild.requestFocus();
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}
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}
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@Override
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protected void notifyPageSwitchListener() {
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super.notifyPageSwitchListener();
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if (mFolder != null) {
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mFolder.updateTextViewFocus();
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}
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}
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/**
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* Scrolls the current view by a fraction
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*/
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public void showScrollHint(int direction) {
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float fraction = (direction == DragController.SCROLL_LEFT) ^ mIsRtl
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? -SCROLL_HINT_FRACTION : SCROLL_HINT_FRACTION;
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int hint = (int) (fraction * getWidth());
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int scroll = getScrollForPage(getNextPage()) + hint;
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int delta = scroll - getScrollX();
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if (delta != 0) {
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mScroller.setInterpolator(new DecelerateInterpolator());
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mScroller.startScroll(getScrollX(), 0, delta, 0, Folder.SCROLL_HINT_DURATION);
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invalidate();
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}
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}
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public void clearScrollHint() {
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if (getScrollX() != getScrollForPage(getNextPage())) {
|
|
snapToPage(getNextPage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Finish animation all the views which are animating across pages
|
|
*/
|
|
public void completePendingPageChanges() {
|
|
if (!mPendingAnimations.isEmpty()) {
|
|
HashMap<View, Runnable> pendingViews = new HashMap<>(mPendingAnimations);
|
|
for (Map.Entry<View, Runnable> e : pendingViews.entrySet()) {
|
|
e.getKey().animate().cancel();
|
|
e.getValue().run();
|
|
}
|
|
}
|
|
}
|
|
|
|
public boolean rankOnCurrentPage(int rank) {
|
|
int p = rank / mMaxItemsPerPage;
|
|
return p == getNextPage();
|
|
}
|
|
|
|
@Override
|
|
protected void onPageBeginMoving() {
|
|
super.onPageBeginMoving();
|
|
getVisiblePages(sTempPosArray);
|
|
for (int i = sTempPosArray[0]; i <= sTempPosArray[1]; i++) {
|
|
verifyVisibleHighResIcons(i);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ensures that all the icons on the given page are of high-res
|
|
*/
|
|
public void verifyVisibleHighResIcons(int pageNo) {
|
|
CellLayout page = getPageAt(pageNo);
|
|
if (page != null) {
|
|
ShortcutAndWidgetContainer parent = page.getShortcutsAndWidgets();
|
|
for (int i = parent.getChildCount() - 1; i >= 0; i--) {
|
|
((BubbleTextView) parent.getChildAt(i)).verifyHighRes();
|
|
}
|
|
}
|
|
}
|
|
|
|
public int getAllocatedContentSize() {
|
|
return mAllocatedContentSize;
|
|
}
|
|
|
|
/**
|
|
* Reorders the items such that the {@param empty} spot moves to {@param target}
|
|
*/
|
|
public void realTimeReorder(int empty, int target) {
|
|
completePendingPageChanges();
|
|
int delay = 0;
|
|
float delayAmount = START_VIEW_REORDER_DELAY;
|
|
|
|
// Animation only happens on the current page.
|
|
int pageToAnimate = getNextPage();
|
|
|
|
int pageT = target / mMaxItemsPerPage;
|
|
int pagePosT = target % mMaxItemsPerPage;
|
|
|
|
if (pageT != pageToAnimate) {
|
|
Log.e(TAG, "Cannot animate when the target cell is invisible");
|
|
}
|
|
int pagePosE = empty % mMaxItemsPerPage;
|
|
int pageE = empty / mMaxItemsPerPage;
|
|
|
|
int startPos, endPos;
|
|
int moveStart, moveEnd;
|
|
int direction;
|
|
|
|
if (target == empty) {
|
|
// No animation
|
|
return;
|
|
} else if (target > empty) {
|
|
// Items will move backwards to make room for the empty cell.
|
|
direction = 1;
|
|
|
|
// If empty cell is in a different page, move them instantly.
|
|
if (pageE < pageToAnimate) {
|
|
moveStart = empty;
|
|
// Instantly move the first item in the current page.
|
|
moveEnd = pageToAnimate * mMaxItemsPerPage;
|
|
// Animate the 2nd item in the current page, as the first item was already moved to
|
|
// the last page.
|
|
startPos = 0;
|
|
} else {
|
|
moveStart = moveEnd = -1;
|
|
startPos = pagePosE;
|
|
}
|
|
|
|
endPos = pagePosT;
|
|
} else {
|
|
// The items will move forward.
|
|
direction = -1;
|
|
|
|
if (pageE > pageToAnimate) {
|
|
// Move the items immediately.
|
|
moveStart = empty;
|
|
// Instantly move the last item in the current page.
|
|
moveEnd = (pageToAnimate + 1) * mMaxItemsPerPage - 1;
|
|
|
|
// Animations start with the second last item in the page
|
|
startPos = mMaxItemsPerPage - 1;
|
|
} else {
|
|
moveStart = moveEnd = -1;
|
|
startPos = pagePosE;
|
|
}
|
|
|
|
endPos = pagePosT;
|
|
}
|
|
|
|
// Instant moving views.
|
|
while (moveStart != moveEnd) {
|
|
int rankToMove = moveStart + direction;
|
|
int p = rankToMove / mMaxItemsPerPage;
|
|
int pagePos = rankToMove % mMaxItemsPerPage;
|
|
int x = pagePos % mGridCountX;
|
|
int y = pagePos / mGridCountX;
|
|
|
|
final CellLayout page = getPageAt(p);
|
|
final View v = page.getChildAt(x, y);
|
|
if (v != null) {
|
|
if (pageToAnimate != p) {
|
|
page.removeView(v);
|
|
addViewForRank(v, (ShortcutInfo) v.getTag(), moveStart);
|
|
} else {
|
|
// Do a fake animation before removing it.
|
|
final int newRank = moveStart;
|
|
final float oldTranslateX = v.getTranslationX();
|
|
|
|
Runnable endAction = new Runnable() {
|
|
|
|
@Override
|
|
public void run() {
|
|
mPendingAnimations.remove(v);
|
|
v.setTranslationX(oldTranslateX);
|
|
((CellLayout) v.getParent().getParent()).removeView(v);
|
|
addViewForRank(v, (ShortcutInfo) v.getTag(), newRank);
|
|
}
|
|
};
|
|
v.animate()
|
|
.translationXBy((direction > 0 ^ mIsRtl) ? -v.getWidth() : v.getWidth())
|
|
.setDuration(REORDER_ANIMATION_DURATION)
|
|
.setStartDelay(0)
|
|
.withEndAction(endAction);
|
|
mPendingAnimations.put(v, endAction);
|
|
}
|
|
}
|
|
moveStart = rankToMove;
|
|
}
|
|
|
|
if ((endPos - startPos) * direction <= 0) {
|
|
// No animation
|
|
return;
|
|
}
|
|
|
|
CellLayout page = getPageAt(pageToAnimate);
|
|
for (int i = startPos; i != endPos; i += direction) {
|
|
int nextPos = i + direction;
|
|
View v = page.getChildAt(nextPos % mGridCountX, nextPos / mGridCountX);
|
|
if (v != null) {
|
|
((ItemInfo) v.getTag()).rank -= direction;
|
|
}
|
|
if (page.animateChildToPosition(v, i % mGridCountX, i / mGridCountX,
|
|
REORDER_ANIMATION_DURATION, delay, true, true)) {
|
|
delay += delayAmount;
|
|
delayAmount *= VIEW_REORDER_DELAY_FACTOR;
|
|
}
|
|
}
|
|
}
|
|
|
|
public int itemsPerPage() {
|
|
return mMaxItemsPerPage;
|
|
}
|
|
|
|
@Override
|
|
protected void getEdgeVerticalPostion(int[] pos) {
|
|
pos[0] = 0;
|
|
pos[1] = getViewportHeight();
|
|
}
|
|
}
|