72 lines
2.8 KiB
Java
72 lines
2.8 KiB
Java
/*
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* Copyright (C) 2022 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 android.view;
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import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
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import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
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import android.app.WindowConfiguration.WindowingMode;
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import android.graphics.Rect;
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import android.view.WindowInsets.Type.InsetsType;
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import android.window.ClientWindowFrames;
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/**
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* Computes window frames for the windowless window.
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*
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* This can't be replaced with the regular WindowLayout because WindowLayout computes bounds
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* with insets and cutout values. Since windowless windows aren't affected by insets and
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* instead are bound by their parent, it will compute incorrect bounds for them if insets are used.
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*
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* @hide
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*/
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public class WindowlessWindowLayout extends WindowLayout {
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@Override
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public void computeFrames(WindowManager.LayoutParams attrs, InsetsState state,
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Rect displayCutoutSafe, Rect windowBounds, @WindowingMode int windowingMode,
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int requestedWidth, int requestedHeight, @InsetsType int requestedVisibleTypes,
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float compatScale, ClientWindowFrames frames) {
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if (frames.attachedFrame == null) {
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frames.frame.set(0, 0, attrs.width, attrs.height);
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frames.parentFrame.set(frames.frame);
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frames.displayFrame.set(frames.frame);
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return;
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}
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final int height = calculateLength(attrs.height, requestedHeight,
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frames.attachedFrame.height());
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final int width = calculateLength(attrs.width, requestedWidth,
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frames.attachedFrame.width());
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Gravity.apply(attrs.gravity, width, height, frames.attachedFrame,
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(int) (attrs.x + attrs.horizontalMargin),
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(int) (attrs.y + attrs.verticalMargin),
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frames.frame);
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frames.displayFrame.set(frames.frame);
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frames.parentFrame.set(frames.attachedFrame);
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}
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private static int calculateLength(int attrLength, int requestedLength, int parentLength) {
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if (attrLength == MATCH_PARENT) {
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return parentLength;
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}
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if (attrLength == WRAP_CONTENT) {
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return requestedLength;
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}
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return attrLength;
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}
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}
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