| /* |
| * Copyright (C) 2018 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.allapps; |
| |
| import android.graphics.Rect; |
| import android.view.View; |
| |
| import com.android.launcher3.DeviceProfile; |
| |
| /** |
| * A abstract representation of a row in all-apps view |
| */ |
| public interface FloatingHeaderRow { |
| |
| FloatingHeaderRow[] NO_ROWS = new FloatingHeaderRow[0]; |
| |
| void setup(FloatingHeaderView parent, FloatingHeaderRow[] allRows, boolean tabsHidden); |
| |
| void setInsets(Rect insets, DeviceProfile grid); |
| |
| int getExpectedHeight(); |
| |
| /** |
| * Returns true if the row should draw based on its current position and layout. |
| */ |
| boolean shouldDraw(); |
| |
| /** |
| * Returns true if the view has anything worth drawing. This is different than |
| * {@link #shouldDraw()} as this is called earlier in the layout to determine the view |
| * position. |
| */ |
| boolean hasVisibleContent(); |
| |
| /** |
| * Scrolls the content vertically. |
| */ |
| void setVerticalScroll(int scroll, boolean isScrolledOut); |
| |
| Class<? extends FloatingHeaderRow> getTypeClass(); |
| |
| /** |
| * Returns a child that has focus to be launched by the IME. |
| */ |
| View getFocusedChild(); |
| |
| /** |
| * Returns true if view is currently visible |
| */ |
| default boolean isVisible() { |
| return shouldDraw(); |
| } |
| } |