Sunny Goyal
103 lines
3.5 KiB
Java
103 lines
3.5 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.uioverrides;
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import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
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import android.graphics.Rect;
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import android.view.View;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.LauncherState;
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import com.android.launcher3.R;
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import com.android.launcher3.Utilities;
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import com.android.launcher3.Workspace;
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import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
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import com.android.quickstep.RecentsView;
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/**
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* Definition for overview state
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*/
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public class OverviewState extends LauncherState {
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public static final float WORKSPACE_SCALE_ON_SCROLL = 0.9f;
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private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED;
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public OverviewState(int id) {
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super(id, ContainerType.WORKSPACE, OVERVIEW_TRANSITION_MS, 1f, STATE_FLAGS);
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}
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@Override
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public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
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Rect pageRect = new Rect();
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RecentsView.getPageRect(launcher, pageRect);
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if (launcher.getWorkspace().getNormalChildWidth() <= 0 || pageRect.isEmpty()) {
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return super.getWorkspaceScaleAndTranslation(launcher);
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}
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RecentsView rv = launcher.getOverviewPanel();
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float overlap = 0;
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if (rv.getCurrentPage() >= rv.getFirstTaskIndex()) {
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Utilities.scaleRectAboutCenter(pageRect, WORKSPACE_SCALE_ON_SCROLL);
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overlap = launcher.getResources().getDimension(R.dimen.workspace_overview_offset_x);
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}
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return getScaleAndTranslationForPageRect(launcher, overlap, pageRect);
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}
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@Override
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public float getHoseatAlpha(Launcher launcher) {
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return launcher.getDeviceProfile().isVerticalBarLayout() ? 0 : 1;
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}
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@Override
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public void onStateEnabled(Launcher launcher) {
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RecentsView rv = launcher.getOverviewPanel();
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rv.setOverviewStateEnabled(true);
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}
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@Override
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public void onStateDisabled(Launcher launcher) {
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RecentsView rv = launcher.getOverviewPanel();
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rv.setOverviewStateEnabled(false);
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}
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@Override
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public View getFinalFocus(Launcher launcher) {
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return launcher.getOverviewPanel();
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}
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public static float[] getScaleAndTranslationForPageRect(Launcher launcher, float offsetX,
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Rect pageRect) {
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Workspace ws = launcher.getWorkspace();
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float childWidth = ws.getNormalChildWidth();
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Rect insets = launcher.getDragLayer().getInsets();
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float scale = pageRect.width() / childWidth;
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float translationX = offsetX / scale;
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if (Utilities.isRtl(launcher.getResources())) {
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translationX = -translationX;
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}
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float halfHeight = ws.getHeight() / 2;
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float childTop = halfHeight - scale * (halfHeight - ws.getPaddingTop() - insets.top);
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float translationY = pageRect.top - childTop;
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return new float[] {scale, translationX, translationY};
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}
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}
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