diff options
Diffstat (limited to 'src/com/android/launcher3/folder/FolderIconPreviewVerifier.java')
-rw-r--r-- | src/com/android/launcher3/folder/FolderIconPreviewVerifier.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java new file mode 100644 index 000000000..de962b021 --- /dev/null +++ b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java @@ -0,0 +1,64 @@ +/* + * 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; + } +} |