Fix Multiple UI issues

1. Use edge-to-edge UI
2. Use new color token
3. Put text in the middle of the button

Bug:279163958
Bug:278504911

Test: manual
Change-Id: I189e9da2251f7d204ddc18680d3d1ec4638fa2db

res/drawable/trackpad_bordered.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2023 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.
+-->
+
+<inset
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android">
+    <ripple
+        android:color="?android:attr/colorControlHighlight">
+        <item>
+            <shape android:shape="rectangle">
+                <corners android:radius="24dp"  />
+                <solid android:color="@android:color/transparent"/>
+                <stroke
+                    android:width="1dp"
+                    android:color="?androidprv:attr/materialColorPrimary"/>
+            </shape>
+        </item>
+    </ripple>
+</inset>

res/drawable/trackpad_button_done_colored.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 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.
+-->
+
+<inset
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android">
+    <ripple
+        android:color="?android:attr/colorControlHighlight">
+        <item>
+            <shape android:shape="rectangle">
+                <corners android:radius="24dp"/>
+                <solid android:color="?androidprv:attr/materialColorPrimary"/>
+            </shape>
+        </item>
+    </ripple>
+</inset>

res/layout/trackpad_gesture_preview.xml

@@ -29,11 +29,11 @@
 
     <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="48dp"
+        android:layout_height="wrap_content"
         android:layout_marginStart="8dip"
         android:layout_marginEnd="8dip"
         android:layout_marginTop="6dip"
-        android:layout_marginBottom="6dip"
+        android:layout_marginBottom="48dip"
         android:layout_weight="1">
 
         <Button
@@ -46,7 +46,7 @@
             android:layout_alignParentStart="true"
             android:paddingVertical="14dp"
             android:drawablePadding="9dp"
-            style="@style/ModifierKeyButtonCancel"
+            style="@style/TrackpadButtonCancel"
             android:textColor="?android:attr/textColorPrimary"
             android:text="@string/gesture_button_skip"/>
 
@@ -60,15 +60,16 @@
             android:layout_alignParentStart="true"
             android:paddingVertical="14dp"
             android:drawablePadding="9dp"
-            style="@style/ModifierKeyButtonCancel"
+            style="@style/TrackpadButtonCancel"
             android:textColor="?android:attr/textColorPrimary"
             android:text="@string/gesture_button_restart"/>
 
         <LinearLayout
             android:id="@+id/viewGroup"
-            android:layout_width="fill_parent"
+            android:layout_width="wrap_content"
-            android:layout_height="48dp"
+            android:layout_height="wrap_content"
-            android:gravity="center"/>
+            android:layout_centerVertical="true"
+            android:layout_centerHorizontal="true"/>
 
         <Button
             android:id="@+id/button_next"
@@ -80,7 +81,7 @@
             android:layout_alignParentEnd="true"
             android:paddingVertical="14dp"
             android:drawablePadding="9dp"
-            style="@style/ModifierKeyButtonDone"
+            style="@style/TrackpadButtonDone"
             android:textColor="?androidprv:attr/materialColorOnPrimary"
             android:text="@string/gesture_button_next"/>
 
@@ -94,7 +95,7 @@
             android:layout_alignParentEnd="true"
             android:paddingVertical="14dp"
             android:drawablePadding="9dp"
-            style="@style/ModifierKeyButtonDone"
+            style="@style/TrackpadButtonDone"
             android:textColor="?androidprv:attr/materialColorOnPrimary"
             android:text="@string/gesture_button_done"/>
     </RelativeLayout>

res/values/styles.xml

@@ -380,6 +380,20 @@
         <item name="android:padding">4dp</item>
     </style>
 
+    <style name="TrackpadButtonDone" parent="@android:style/Widget.Material.Button">
+        <item name="android:background">@drawable/trackpad_button_done_colored</item>
+        <item name="android:stateListAnimator">@null</item>
+        <item name="android:textSize">16sp</item>
+        <item name="android:padding">4dp</item>
+    </style>
+
+    <style name="TrackpadButtonCancel" parent="@android:style/Widget.Material.Button">
+        <item name="android:background">@drawable/trackpad_bordered</item>
+        <item name="android:stateListAnimator">@null</item>
+        <item name="android:textSize">16sp</item>
+        <item name="android:padding">4dp</item>
+    </style>
+
     <style name="LockPatternContainerStyle">
         <item name="android:gravity">center</item>
         <item name="android:maxHeight">@dimen/biometric_auth_pattern_view_max_size</item>

src/com/android/settings/inputmethod/TrackpadGestureDialogFragment.java

@@ -17,17 +17,21 @@
 package com.android.settings.inputmethod;
 
 import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
+import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL;
 
 import android.app.Activity;
 import android.app.Dialog;
 import android.content.Context;
+import android.graphics.Color;
 import android.graphics.Point;
 import android.os.Bundle;
 import android.view.Display;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
 import android.view.Window;
+import android.view.WindowInsets;
 import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.FrameLayout;
@@ -87,21 +91,36 @@ public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {
         if (window == null) {
             return;
         }
+        setLayoutEdgeToEdge(window);
         final Point size = getScreenSize();
         final WindowManager.LayoutParams attributes = window.getAttributes();
         attributes.width = (int) (size.x * 0.75);
         window.setAttributes(attributes);
     }
 
+    @Override
+    public void onPause() {
+        super.onPause();
+        dismiss();
+    }
+
+    private static void setLayoutEdgeToEdge(Window window) {
+        View windowDecorView = window.getDecorView();
+        windowDecorView.setSystemUiVisibility(
+                windowDecorView.getSystemUiVisibility()
+                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+        window.setNavigationBarColor(Color.TRANSPARENT);
+    }
+
     @Override
     public Dialog onCreateDialog(final Bundle savedInstanceState) {
         Dialog dialog = super.onCreateDialog(savedInstanceState);
+
         mInflater = mContext.getSystemService(LayoutInflater.class);
-
+        View contentView = mInflater.inflate(R.layout.trackpad_gesture_preview, null);
-        View gestureEducationView = mInflater.inflate(R.layout.trackpad_gesture_preview, null);
+        addViewPager(contentView);
-        addViewPager(gestureEducationView);
+        dialog.setContentView(contentView);
-        dialog.setContentView(gestureEducationView);
-
         Window gestureDialogWindow = dialog.getWindow();
         gestureDialogWindow.setType(TYPE_SYSTEM_DIALOG);
 
@@ -109,8 +128,40 @@ public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {
         FrameLayout bottomSheet = (FrameLayout)
                 dialog.findViewById(com.google.android.material.R.id.design_bottom_sheet);
         bottomSheet.setBackgroundResource(android.R.color.transparent);
-        BottomSheetBehavior.from(bottomSheet)
+        BottomSheetBehavior<FrameLayout> behavior = BottomSheetBehavior.from(bottomSheet);
-                .setState(BottomSheetBehavior.STATE_EXPANDED);
+        if (!isGestureNavigationEnabled()) {
+            behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
+        }
+        ViewTreeObserver observer = contentView.getViewTreeObserver();
+        observer.addOnGlobalLayoutListener(
+                new ViewTreeObserver.OnGlobalLayoutListener() {
+                    @Override
+                    public void onGlobalLayout() {
+                        contentView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+                        int contentViewHeight = contentView.getMeasuredHeight();
+                        int navigationBarHeight = getNavigationBarHeight();
+                        behavior.setPeekHeight(contentViewHeight - navigationBarHeight);
+                    }
+                });
+
+        // The gesture education view shouldn't be draggable."
+        behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
+            @Override
+            public void onStateChanged(View bottomSheet, int newState) {
+                if (newState == BottomSheetBehavior.STATE_DRAGGING) {
+                    if (isGestureNavigationEnabled()) {
+                        behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
+                    } else {
+                        behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
+                    }
+                }
+            }
+
+            @Override
+            public void onSlide(View bottomSheet, float slideOffset) {
+                // Do nothing.
+            }
+        });
 
         return dialog;
     }
@@ -263,4 +314,16 @@ public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {
         display.getSize(size);
         return size;
     }
+
+    private int getNavigationBarHeight() {
+        final Activity activity = (Activity) mContext;
+        WindowInsets insets =
+                activity.getWindowManager().getCurrentWindowMetrics().getWindowInsets();
+        return insets.getInsets(WindowInsets.Type.navigationBars()).bottom;
+    }
+
+    private boolean isGestureNavigationEnabled() {
+        return NAV_BAR_MODE_GESTURAL == mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_navBarInteractionMode);
+    }
 }