| /* |
| * 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.anim.Interpolators.ACCEL_2; |
| |
| import android.content.Context; |
| import android.graphics.Rect; |
| import android.view.View; |
| |
| import com.android.launcher3.DeviceProfile; |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.LauncherState; |
| import com.android.launcher3.R; |
| import com.android.launcher3.Utilities; |
| import com.android.launcher3.Workspace; |
| import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType; |
| import com.android.quickstep.RecentsView; |
| |
| /** |
| * Definition for overview state |
| */ |
| public class OverviewState extends LauncherState { |
| |
| private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED |
| | FLAG_DISABLE_RESTORE; |
| |
| public OverviewState(int id) { |
| super(id, ContainerType.WORKSPACE, OVERVIEW_TRANSITION_MS, STATE_FLAGS); |
| } |
| |
| @Override |
| public float[] getWorkspaceScaleAndTranslation(Launcher launcher) { |
| Rect pageRect = new Rect(); |
| RecentsView.getScaledDownPageRect(launcher.getDeviceProfile(), launcher, pageRect); |
| RecentsView rv = launcher.getOverviewPanel(); |
| |
| if (launcher.getWorkspace().getNormalChildWidth() <= 0 || pageRect.isEmpty()) { |
| return super.getWorkspaceScaleAndTranslation(launcher); |
| } |
| |
| float overlap = 0; |
| if (rv.getCurrentPage() >= rv.getFirstTaskIndex()) { |
| overlap = launcher.getResources().getDimension(R.dimen.workspace_overview_offset_x); |
| } |
| return getScaleAndTranslationForPageRect(launcher, overlap, pageRect); |
| } |
| |
| @Override |
| public void onStateEnabled(Launcher launcher) { |
| RecentsView rv = launcher.getOverviewPanel(); |
| rv.setOverviewStateEnabled(true); |
| } |
| |
| @Override |
| public void onStateDisabled(Launcher launcher) { |
| RecentsView rv = launcher.getOverviewPanel(); |
| rv.setOverviewStateEnabled(false); |
| } |
| |
| @Override |
| public float getVerticalProgress(Launcher launcher) { |
| return getVerticalProgress(launcher.getDeviceProfile(), launcher); |
| } |
| |
| @Override |
| public View getFinalFocus(Launcher launcher) { |
| return launcher.getOverviewPanel(); |
| } |
| |
| public PageAlphaProvider getWorkspacePageAlphaProvider(Launcher launcher) { |
| final int centerPage = launcher.getWorkspace().getNextPage(); |
| return new PageAlphaProvider(ACCEL_2) { |
| @Override |
| public float getPageAlpha(int pageIndex) { |
| return pageIndex != centerPage ? 0 : 1f; |
| } |
| }; |
| } |
| |
| public static float[] getScaleAndTranslationForPageRect(Launcher launcher, float offsetX, |
| Rect pageRect) { |
| Workspace ws = launcher.getWorkspace(); |
| float childWidth = ws.getNormalChildWidth(); |
| float childHeight = ws.getNormalChildHeight(); |
| |
| float scale = pageRect.height() / childHeight; |
| Rect insets = launcher.getDragLayer().getInsets(); |
| |
| float halfHeight = ws.getExpectedHeight() / 2; |
| float childTop = halfHeight - scale * (halfHeight - ws.getPaddingTop() - insets.top); |
| float translationY = pageRect.top - childTop; |
| |
| // Align the workspace horizontally centered with the task rect |
| float halfWidth = ws.getExpectedWidth() / 2; |
| float childCenter = halfWidth - |
| scale * (halfWidth - ws.getPaddingLeft() - insets.left - childWidth / 2); |
| float translationX = pageRect.centerX() - childCenter; |
| |
| if (Utilities.isRtl(launcher.getResources())) { |
| translationX -= offsetX / scale; |
| } else { |
| translationX += offsetX / scale; |
| } |
| |
| return new float[] {scale, translationX, translationY}; |
| } |
| |
| public static float getVerticalProgress(DeviceProfile grid, Context context) { |
| if (!grid.isVerticalBarLayout()) { |
| return 1f; |
| } |
| |
| float total = grid.heightPx; |
| float searchHeight = total - grid.availableHeightPx + |
| context.getResources().getDimension(R.dimen.all_apps_search_box_full_height); |
| return 1 - (searchHeight / total); |
| } |
| } |