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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3.folder;
import com.android.launcher3.FolderInfo;
import com.android.launcher3.InvariantDeviceProfile;
import com.android.launcher3.config.FeatureFlags;
/**
* Verifies whether an item in a Folder is displayed in the FolderIcon preview.
*/
public class FolderIconPreviewVerifier {
private final int mMaxGridCountX;
private final int mMaxGridCountY;
private final int mMaxItemsPerPage;
private final int[] mGridSize = new int[2];
private int mGridCountX;
private boolean mDisplayingUpperLeftQuadrant = false;
public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
mMaxGridCountX = profile.numFolderColumns;
mMaxGridCountY = profile.numFolderRows;
mMaxItemsPerPage = mMaxGridCountX * mMaxGridCountY;
}
public void setFolderInfo(FolderInfo info) {
int numItemsInFolder = info.contents.size();
mDisplayingUpperLeftQuadrant = FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION
&& !FeatureFlags.LAUNCHER3_LEGACY_FOLDER_ICON
&& numItemsInFolder > FolderIcon.NUM_ITEMS_IN_PREVIEW;
if (mDisplayingUpperLeftQuadrant) {
FolderPagedView.calculateGridSize(info.contents.size(), 0, 0, mMaxGridCountX,
mMaxGridCountY, mMaxItemsPerPage, mGridSize);
mGridCountX = mGridSize[0];
}
}
public boolean isItemInPreview(int rank) {
if (mDisplayingUpperLeftQuadrant) {
// Returns true iff the icon is in the 2x2 upper left quadrant of the Folder.
int col = rank % mGridCountX;
int row = rank / mGridCountX;
return col < 2 && row < 2;
}
return rank < FolderIcon.NUM_ITEMS_IN_PREVIEW;
}
}
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