mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-20 03:08:19 +00:00
e6f3fa47d6
- We update the ranks of all folder items after loading, to ensure there are no gaps caused by removed folder items. This also ensures that we load the high resolution icons for all preview items. - FolderIconPreviewVerifier#setFolderInfo was not always called - Init mGridSize with [1, 1] to prevent divide by zero error in case setFolderInfo is not called Bug: 126268196 Change-Id: I856489968665a39303e2922c78cf90f2b3ee6ebb
90 lines
3.1 KiB
Java
90 lines
3.1 KiB
Java
/*
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* Copyright (C) 2017 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.util.Log;
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import com.android.launcher3.FolderInfo;
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import com.android.launcher3.InvariantDeviceProfile;
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import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
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/**
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* Verifies whether an item in a Folder is displayed in the FolderIcon preview.
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*/
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public class FolderIconPreviewVerifier {
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private static final String TAG = "FolderPreviewVerifier";
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private final int mMaxGridCountX;
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private final int mMaxGridCountY;
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private final int mMaxItemsPerPage;
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private final int[] mGridSize = new int[] { 1, 1 };
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private int mNumItemsInFolder;
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private int mGridCountX;
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private boolean mDisplayingUpperLeftQuadrant = false;
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/**
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* Note: must call {@link #setFolderInfo(FolderInfo)} manually for verifier to work.
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*/
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public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
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mMaxGridCountX = profile.numFolderColumns;
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mMaxGridCountY = profile.numFolderRows;
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mMaxItemsPerPage = mMaxGridCountX * mMaxGridCountY;
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}
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public void setFolderInfo(FolderInfo info) {
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int numItemsInFolder = info.contents.size();
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if (numItemsInFolder != mNumItemsInFolder) {
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FolderPagedView.calculateGridSize(numItemsInFolder, 0, 0, mMaxGridCountX,
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mMaxGridCountY, mMaxItemsPerPage, mGridSize);
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mGridCountX = mGridSize[0];
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mDisplayingUpperLeftQuadrant = numItemsInFolder > MAX_NUM_ITEMS_IN_PREVIEW;
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mNumItemsInFolder = numItemsInFolder;
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}
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}
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/**
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* Returns whether the item with {@param rank} is in the default Folder icon preview.
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*/
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public boolean isItemInPreview(int rank) {
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return isItemInPreview(0, rank);
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}
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/**
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* @param page The page the item is on.
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* @param rank The rank of the item.
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* @return True iff the icon is in the 2x2 upper left quadrant of the Folder.
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*/
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public boolean isItemInPreview(int page, int rank) {
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if (mGridSize[0] == 1) {
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Log.w(TAG, "setFolderInfo not called before checking if item is in preview.");
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}
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// First page items are laid out such that the first 4 items are always in the upper
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// left quadrant. For all other pages, we need to check the row and col.
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if (page > 0 || mDisplayingUpperLeftQuadrant) {
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int col = rank % mGridCountX;
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int row = rank / mGridCountX;
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return col < 2 && row < 2;
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}
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return rank < MAX_NUM_ITEMS_IN_PREVIEW;
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}
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}
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