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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.launcher3.uioverrides;
     17 
     18 import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
     19 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
     20 
     21 import com.android.launcher3.AbstractFloatingView;
     22 import com.android.launcher3.Launcher;
     23 import com.android.launcher3.LauncherState;
     24 import com.android.launcher3.allapps.AllAppsContainerView;
     25 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
     26 
     27 /**
     28  * Definition for AllApps state
     29  */
     30 public class AllAppsState extends LauncherState {
     31 
     32     private static final int STATE_FLAGS = FLAG_DISABLE_ACCESSIBILITY;
     33 
     34     private static final PageAlphaProvider PAGE_ALPHA_PROVIDER = new PageAlphaProvider(DEACCEL_2) {
     35         @Override
     36         public float getPageAlpha(int pageIndex) {
     37             return 0;
     38         }
     39     };
     40 
     41     public AllAppsState(int id) {
     42         super(id, ContainerType.ALLAPPS, ALL_APPS_TRANSITION_MS, STATE_FLAGS);
     43     }
     44 
     45     @Override
     46     public void onStateEnabled(Launcher launcher) {
     47         AbstractFloatingView.closeAllOpenViews(launcher);
     48         dispatchWindowStateChanged(launcher);
     49     }
     50 
     51     @Override
     52     public String getDescription(Launcher launcher) {
     53         AllAppsContainerView appsView = launcher.getAppsView();
     54         return appsView.getDescription();
     55     }
     56 
     57     @Override
     58     public float getVerticalProgress(Launcher launcher) {
     59         return 0f;
     60     }
     61 
     62     @Override
     63     public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
     64         float[] scaleAndTranslation = LauncherState.OVERVIEW.getWorkspaceScaleAndTranslation(
     65                 launcher);
     66         scaleAndTranslation[0] = 1;
     67         return scaleAndTranslation;
     68     }
     69 
     70     @Override
     71     public PageAlphaProvider getWorkspacePageAlphaProvider(Launcher launcher) {
     72         return PAGE_ALPHA_PROVIDER;
     73     }
     74 
     75     @Override
     76     public int getVisibleElements(Launcher launcher) {
     77         return ALL_APPS_HEADER | ALL_APPS_HEADER_EXTRA | ALL_APPS_CONTENT;
     78     }
     79 
     80     @Override
     81     public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
     82         return new float[] {0.9f, -0.2f};
     83     }
     84 
     85     @Override
     86     public LauncherState getHistoryForState(LauncherState previousState) {
     87         return previousState == OVERVIEW ? OVERVIEW : NORMAL;
     88     }
     89 }
     90