From 7a620d367303b417ba944e17fc8d539a5ef7da8f Mon Sep 17 00:00:00 2001
From: "sfufa@google.com" <sfufa@google.com>
Date: Wed, 13 Oct 2021 13:01:18 -0700
Subject: [PATCH] [Search] Hide A-Z list when search is entered from QSB

preview attached to bug report

Bug: 201781284
Test: manual
Change-Id: I572360d2d49b38577a7d77115aede4c3269d42e9
---
 quickstep/res/values/strings.xml              |  2 -
 res/layout/all_apps.xml                       | 13 ++++-
 res/values/dimens.xml                         |  1 +
 res/values/strings.xml                        |  9 ++--
 .../launcher3/allapps/FloatingHeaderView.java | 51 +++++++++++++++++++
 5 files changed, 68 insertions(+), 8 deletions(-)

diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 52bd48b2ff..6af0d602ab 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -53,8 +53,6 @@
 
     <!-- Accessibility title for the row of all-apps containing app predictions. [CHAR LIMIT=50] -->
     <string name="title_app_suggestions">App suggestions</string>
-    <!-- Label for the header text of the All Apps section in All Apps view, used to separate Predicted Apps and Actions section from All Apps section. [CHAR_LIMIT=50] -->
-    <string name="all_apps_label">All apps</string>
     <!-- Text of the tip when user lands in all apps view for the first time, indicating where the tip toast points to is the predicted apps section. [CHAR_LIMIT=50] -->
     <string name="all_apps_prediction_tip">Your predicted apps</string>
 
diff --git a/res/layout/all_apps.xml b/res/layout/all_apps.xml
index 9ac6ed0f77..a34baef214 100644
--- a/res/layout/all_apps.xml
+++ b/res/layout/all_apps.xml
@@ -42,10 +42,19 @@
         <include layout="@layout/floating_header_content" />
 
         <include layout="@layout/all_apps_personal_work_tabs" />
+
+        <Button
+            android:id="@+id/all_apps_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="@string/all_apps_label"
+            android:background="@drawable/padded_rounded_action_button"
+            android:visibility="gone"/>
+
     </com.android.launcher3.allapps.FloatingHeaderView>
 
-    <include
-        layout="@layout/search_container_all_apps"/>
+    <include layout="@layout/search_container_all_apps" />
 
     <include layout="@layout/all_apps_fast_scroller" />
 </com.android.launcher3.allapps.LauncherAllAppsContainerView>
\ No newline at end of file
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index b1294b4c58..4d137c84b5 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -103,6 +103,7 @@
     <dimen name="all_apps_tabs_vertical_padding">6dp</dimen>
     <dimen name="all_apps_divider_height">2dp</dimen>
     <dimen name="all_apps_divider_width">128dp</dimen>
+    <dimen name="all_apps_content_fade_in_offset">150dp</dimen>
 
     <dimen name="all_apps_tip_bottom_margin">8dp</dimen>
     <!-- The size of corner radius of the arrow in the arrow toast. -->
diff --git a/res/values/strings.xml b/res/values/strings.xml
index f315725a7a..d7a150655f 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
 /*
 * Copyright (C) 2008 The Android Open Source Project
 *
@@ -132,6 +131,8 @@
     <string name="all_apps_search_market_message">Search for more apps</string>
     <!-- Label for an icon representing any generic app. [CHAR_LIMIT=50] -->
     <string name="label_application">App</string>
+    <!-- Label for the header text of the All Apps section in All Apps view, used to separate Predicted Apps and Actions section from All Apps section. [CHAR_LIMIT=50] -->
+    <string name="all_apps_label">All apps</string>
 
     <!-- Popup items -->
     <!-- Text to display as the header above notifications. [CHAR_LIMIT=30] -->
@@ -193,7 +194,7 @@
     <string name="msg_no_phone_permission"><xliff:g id="app_name" example="Launcher3">%1$s</xliff:g> is not allowed to make phone calls</string>
 
     <!-- Widgets: -->
-    <skip />    
+    <skip />
 
     <!-- Error text that lets a user know that the widget can't load. -->
     <string name="gadget_error_text">Can\'t load widget</string>
@@ -308,7 +309,7 @@
     <!-- Text announced by accessibility when the popup containing the list of widgets is closed. [CHAR_LIMIT=100] -->
     <string name="widgets_list_closed">Widgets list closed</string>
 
-<!-- Strings for accessibility actions -->
+    <!-- Strings for accessibility actions -->
     <!-- Accessibility action to add an app to workspace. [CHAR_LIMIT=30] -->
     <string name="action_add_to_workspace">Add to Home screen</string>
 
diff --git a/src/com/android/launcher3/allapps/FloatingHeaderView.java b/src/com/android/launcher3/allapps/FloatingHeaderView.java
index debb5b20c1..3ca03034a3 100644
--- a/src/com/android/launcher3/allapps/FloatingHeaderView.java
+++ b/src/com/android/launcher3/allapps/FloatingHeaderView.java
@@ -47,6 +47,7 @@ public class FloatingHeaderView extends LinearLayout implements
         ValueAnimator.AnimatorUpdateListener, PluginListener<AllAppsRow>, Insettable,
         OnHeightUpdatedListener {
 
+    private static final long ALL_APPS_CONTENT_ANIM_DURATION = 150;
     private final Rect mRVClip = new Rect(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
     private final Rect mHeaderClip = new Rect(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
     private final ValueAnimator mAnimator = ValueAnimator.ofInt(0, 0);
@@ -108,6 +109,14 @@ public class FloatingHeaderView extends LinearLayout implements
     // enabled or disabled, and represent the current set of all rows.
     private FloatingHeaderRow[] mAllRows = FloatingHeaderRow.NO_ROWS;
 
+
+    // members for handling suggestion state
+    private final ValueAnimator mAllAppsContentAnimator = ValueAnimator.ofFloat(0, 0);
+    private View mAllAppsButton;
+    private int mAllAppsContentFadeInOffset;
+    private boolean mInSuggestionMode = false;
+
+
     public FloatingHeaderView(@NonNull Context context) {
         this(context, null);
     }
@@ -118,12 +127,20 @@ public class FloatingHeaderView extends LinearLayout implements
                 .getDimensionPixelSize(R.dimen.all_apps_header_top_padding);
         mHeaderProtectionSupported = context.getResources().getBoolean(
                 R.bool.config_header_protection_supported);
+        mAllAppsContentFadeInOffset = context.getResources()
+                .getDimensionPixelSize(R.dimen.all_apps_content_fade_in_offset);
+        mAllAppsContentAnimator.setDuration(ALL_APPS_CONTENT_ANIM_DURATION);
+        mAllAppsContentAnimator.addUpdateListener(this::onAllAppsContentAnimationUpdate);
     }
 
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
         mTabLayout = findViewById(R.id.tabs);
+        mAllAppsButton = findViewById(R.id.all_apps_button);
+        if (mAllAppsButton != null) {
+            mAllAppsButton.setOnClickListener(this::onAllAppsButtonClicked);
+        }
 
         // Find all floating header rows.
         ArrayList<FloatingHeaderRow> rows = new ArrayList<>();
@@ -312,6 +329,7 @@ public class FloatingHeaderView extends LinearLayout implements
         }
 
         mTabLayout.setTranslationY(mTranslationY);
+        setSuggestionMode(false);
 
         int clipHeight = mHeaderTopPadding - getPaddingBottom();
         mRVClip.top = mTabsHidden ? clipHeight : 0;
@@ -347,6 +365,7 @@ public class FloatingHeaderView extends LinearLayout implements
             mTranslationY = 0;
             applyVerticalMove();
         }
+        setSuggestionMode(false);
         mHeaderCollapsed = false;
         mSnappedScrolledY = -mMaxTranslation;
         mCurrentRV.scrollToTop();
@@ -442,6 +461,38 @@ public class FloatingHeaderView extends LinearLayout implements
         }
         return Math.max(getHeight() - getPaddingTop() + mTranslationY, 0);
     }
+
+    /**
+     * When suggestion mode is enabled, hides AllApps content view and shows AllApps button.
+     */
+    public void setSuggestionMode(boolean isSuggestMode) {
+        if (mInSuggestionMode == isSuggestMode || mAllAppsButton == null) return;
+        if (!FeatureFlags.ENABLE_ONE_SEARCH.get()) return;
+        AllAppsContainerView allApps = (AllAppsContainerView) getParent();
+        mInSuggestionMode = isSuggestMode;
+        if (isSuggestMode) {
+            mTabLayout.setVisibility(GONE);
+            mAllAppsButton.setVisibility(VISIBLE);
+            allApps.getContentView().setVisibility(GONE);
+        } else {
+            mTabLayout.setVisibility(mTabsHidden ? GONE : VISIBLE);
+            mAllAppsButton.setVisibility(GONE);
+            allApps.getContentView().setVisibility(VISIBLE);
+        }
+    }
+
+    private void onAllAppsButtonClicked(View view) {
+        setSuggestionMode(false);
+        mAllAppsContentAnimator.start();
+    }
+
+    private void onAllAppsContentAnimationUpdate(ValueAnimator valueAnimator) {
+        float prog = valueAnimator.getAnimatedFraction();
+        View allAppsList = ((AllAppsContainerView) getParent()).getContentView();
+        allAppsList.setAlpha(255 * prog);
+        allAppsList.setTranslationY((1 - prog) * mAllAppsContentFadeInOffset);
+    }
+
 }