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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.uioverrides;
import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
import static com.android.launcher3.compat.AccessibilityManagerCompat.isAccessibilityEnabled;
import android.graphics.Rect;
import android.view.View;
import android.view.accessibility.AccessibilityNodeInfo;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.Workspace;
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
/**
* Definition for overview state
*/
public class OverviewState extends LauncherState {
// The percent to shrink the workspace during overview mode
private static final float SCALE_FACTOR = 0.7f;
private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE |
FLAG_DISABLE_PAGE_CLIPPING | FLAG_PAGE_BACKGROUNDS | FLAG_OVERVIEW_UI;
public OverviewState(int id) {
super(id, ContainerType.WORKSPACE, OVERVIEW_TRANSITION_MS, STATE_FLAGS);
}
@Override
public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
DeviceProfile grid = launcher.getDeviceProfile();
Workspace ws = launcher.getWorkspace();
Rect insets = launcher.getDragLayer().getInsets();
int overviewButtonBarHeight = OverviewPanel.getButtonBarHeight(launcher);
int scaledHeight = (int) (SCALE_FACTOR * ws.getNormalChildHeight());
int workspaceTop = insets.top + grid.workspacePadding.top;
int workspaceBottom = ws.getHeight() - insets.bottom - grid.workspacePadding.bottom;
int overviewTop = insets.top;
int overviewBottom = ws.getHeight() - insets.bottom - overviewButtonBarHeight;
int workspaceOffsetTopEdge =
workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2;
int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2;
return new float[] {SCALE_FACTOR, 0, -workspaceOffsetTopEdge + overviewOffsetTopEdge };
}
@Override
public float getHoseatAlpha(Launcher launcher) {
return 0;
}
@Override
public void onStateEnabled(Launcher launcher) {
launcher.getWorkspace().setPageRearrangeEnabled(true);
if (isAccessibilityEnabled(launcher)) {
launcher.getOverviewPanel().getChildAt(0).performAccessibilityAction(
AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
}
}
@Override
public void onStateDisabled(Launcher launcher) {
launcher.getWorkspace().setPageRearrangeEnabled(false);
}
@Override
public View getFinalFocus(Launcher launcher) {
return launcher.getOverviewPanel();
}
}
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