Implement Font Scaling Quick Settings Tile (2/n)

Font scaling quick settings tile provides a quick access for users to
change the Font Size in quick settings panel.

In this modification, we create the FontScalingTile and set the icon and
title for the tile. Only the appearance of the tile is set.

Disabling the tile with setting isAvailable to false.

Bug: 242326166
Test: Attach a video to the bug
Test: atest TilesStatesTextTest QSTileViewImplTest QSFactoryImplTest
Change-Id: I5d4d3ddc97eb1db90db48f23e362136b002d4b2d

packages/SystemUI/res/drawable/ic_qs_font_scaling.xml

@@ -0,0 +1,25 @@
+<!--
+   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.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+         android:width="24dp"
+         android:height="24dp"
+         android:viewportWidth="24"
+         android:viewportHeight="24">
+<path
+    android:pathData="M7,20L7,7L2,7L2,4h13v3h-5v13ZM16,20v-8h-3L13,9h9v3h-3v8Z"
+    android:fillColor="#041E49"/>
+</vector>

packages/SystemUI/res/values/config.xml

@@ -81,7 +81,7 @@
 
     <!-- Tiles native to System UI. Order should match "quick_settings_tiles_default" -->
     <string name="quick_settings_tiles_stock" translatable="false">
-        internet,bt,flashlight,dnd,alarm,airplane,controls,wallet,rotation,battery,cast,screenrecord,mictoggle,cameratoggle,location,hotspot,inversion,saver,dark,work,night,reverse,reduce_brightness,qr_code_scanner,onehanded,color_correction,dream
+        internet,bt,flashlight,dnd,alarm,airplane,controls,wallet,rotation,battery,cast,screenrecord,mictoggle,cameratoggle,location,hotspot,inversion,saver,dark,work,night,reverse,reduce_brightness,qr_code_scanner,onehanded,color_correction,dream,font_scaling
     </string>
 
     <!-- The tiles to display in QuickSettings -->

packages/SystemUI/res/values/strings.xml

@@ -660,6 +660,8 @@
     <string name="quick_settings_inversion_label">Color inversion</string>
     <!-- QuickSettings: Label for the toggle that controls whether display color correction is enabled. [CHAR LIMIT=NONE] -->
     <string name="quick_settings_color_correction_label">Color correction</string>
+    <!-- QuickSettings: Label for font size scaling. [CHAR LIMIT=NONE] -->
+    <string name="quick_settings_font_scaling_label">Font size</string>
     <!-- QuickSettings: Control panel: Label for button that navigates to user settings. [CHAR LIMIT=NONE] -->
     <string name="quick_settings_more_user_settings">Manage users</string>
     <!-- QuickSettings: Control panel: Label for button that dismisses control panel. [CHAR LIMIT=NONE] -->

packages/SystemUI/res/values/tiles_states_strings.xml

@@ -318,4 +318,14 @@
         <item>Off</item>
         <item>On</item>
     </string-array>
+
+    <!-- State names for font scaling tile: unavailable, off, on.
+         This subtitle is shown when the tile is in that particular state but does not set its own
+         subtitle, so some of these may never appear on screen. They should still be translated as
+         if they could appear. [CHAR LIMIT=32] -->
+    <string-array name="tile_states_font_scaling">
+        <item>Unavailable</item>
+        <item>Off</item>
+        <item>On</item>
+    </string-array>
 </resources>

packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSFactoryImpl.java

@@ -40,6 +40,7 @@ import com.android.systemui.qs.tiles.DeviceControlsTile;
 import com.android.systemui.qs.tiles.DndTile;
 import com.android.systemui.qs.tiles.DreamTile;
 import com.android.systemui.qs.tiles.FlashlightTile;
+import com.android.systemui.qs.tiles.FontScalingTile;
 import com.android.systemui.qs.tiles.HotspotTile;
 import com.android.systemui.qs.tiles.InternetTile;
 import com.android.systemui.qs.tiles.LocationTile;
@@ -94,6 +95,7 @@ public class QSFactoryImpl implements QSFactory {
     private final Provider<QRCodeScannerTile> mQRCodeScannerTileProvider;
     private final Provider<OneHandedModeTile> mOneHandedModeTileProvider;
     private final Provider<DreamTile> mDreamTileProvider;
+    private final Provider<FontScalingTile> mFontScalingTileProvider;
 
     private final Lazy<QSHost> mQsHostLazy;
     private final Provider<CustomTile.Builder> mCustomTileBuilderProvider;
@@ -129,7 +131,8 @@ public class QSFactoryImpl implements QSFactory {
             Provider<QRCodeScannerTile> qrCodeScannerTileProvider,
             Provider<OneHandedModeTile> oneHandedModeTileProvider,
             Provider<ColorCorrectionTile> colorCorrectionTileProvider,
-            Provider<DreamTile> dreamTileProvider) {
+            Provider<DreamTile> dreamTileProvider,
+            Provider<FontScalingTile> fontScalingTileProvider) {
         mQsHostLazy = qsHostLazy;
         mCustomTileBuilderProvider = customTileBuilderProvider;
 
@@ -161,6 +164,7 @@ public class QSFactoryImpl implements QSFactory {
         mOneHandedModeTileProvider = oneHandedModeTileProvider;
         mColorCorrectionTileProvider = colorCorrectionTileProvider;
         mDreamTileProvider = dreamTileProvider;
+        mFontScalingTileProvider = fontScalingTileProvider;
     }
 
     /** Creates a tile with a type based on {@code tileSpec} */
@@ -232,6 +236,8 @@ public class QSFactoryImpl implements QSFactory {
                 return mColorCorrectionTileProvider.get();
             case "dream":
                 return mDreamTileProvider.get();
+            case "font_scaling":
+                return mFontScalingTileProvider.get();
         }
 
         // Custom tiles

packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSTileViewImpl.kt

@@ -694,7 +694,8 @@ internal object SubtitleArrayMapping {
         "alarm" to R.array.tile_states_alarm,
         "onehanded" to R.array.tile_states_onehanded,
         "color_correction" to R.array.tile_states_color_correction,
-        "dream" to R.array.tile_states_dream
+        "dream" to R.array.tile_states_dream,
+        "font_scaling" to R.array.tile_states_font_scaling
     )
 
     fun getSubtitleId(spec: String?): Int {

packages/SystemUI/src/com/android/systemui/qs/tiles/FontScalingTile.kt

@@ -0,0 +1,83 @@
+/*
+ * 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.
+ */
+package com.android.systemui.qs.tiles
+
+import android.content.Intent
+import android.os.Handler
+import android.os.Looper
+import android.view.View
+import com.android.internal.logging.MetricsLogger
+import com.android.systemui.R
+import com.android.systemui.dagger.qualifiers.Background
+import com.android.systemui.dagger.qualifiers.Main
+import com.android.systemui.plugins.ActivityStarter
+import com.android.systemui.plugins.FalsingManager
+import com.android.systemui.plugins.qs.QSTile
+import com.android.systemui.plugins.statusbar.StatusBarStateController
+import com.android.systemui.qs.QSHost
+import com.android.systemui.qs.logging.QSLogger
+import com.android.systemui.qs.tileimpl.QSTileImpl
+import javax.inject.Inject
+
+class FontScalingTile
+@Inject
+constructor(
+    host: QSHost,
+    @Background backgroundLooper: Looper,
+    @Main mainHandler: Handler,
+    falsingManager: FalsingManager,
+    metricsLogger: MetricsLogger,
+    statusBarStateController: StatusBarStateController,
+    activityStarter: ActivityStarter,
+    qsLogger: QSLogger
+) :
+    QSTileImpl<QSTile.State?>(
+        host,
+        backgroundLooper,
+        mainHandler,
+        falsingManager,
+        metricsLogger,
+        statusBarStateController,
+        activityStarter,
+        qsLogger
+    ) {
+    private val mIcon = ResourceIcon.get(R.drawable.ic_qs_font_scaling)
+
+    override fun isAvailable(): Boolean {
+        return false
+    }
+
+    override fun newTileState(): QSTile.State {
+        val state = QSTile.State()
+        state.handlesLongClick = false
+        return state
+    }
+
+    override fun handleClick(view: View?) {}
+
+    override fun handleUpdateState(state: QSTile.State?, arg: Any?) {
+        state?.label = mContext.getString(R.string.quick_settings_font_scaling_label)
+        state?.icon = mIcon
+    }
+
+    override fun getLongClickIntent(): Intent? {
+        return null
+    }
+
+    override fun getTileLabel(): CharSequence {
+        return mContext.getString(R.string.quick_settings_font_scaling_label)
+    }
+}

packages/SystemUI/tests/src/com/android/systemui/qs/tileimpl/QSFactoryImplTest.kt

@@ -35,6 +35,7 @@ import com.android.systemui.qs.tiles.DeviceControlsTile
 import com.android.systemui.qs.tiles.DndTile
 import com.android.systemui.qs.tiles.DreamTile
 import com.android.systemui.qs.tiles.FlashlightTile
+import com.android.systemui.qs.tiles.FontScalingTile
 import com.android.systemui.qs.tiles.HotspotTile
 import com.android.systemui.qs.tiles.InternetTile
 import com.android.systemui.qs.tiles.LocationTile
@@ -87,7 +88,8 @@ private val specMap = mapOf(
         "qr_code_scanner" to QRCodeScannerTile::class.java,
         "onehanded" to OneHandedModeTile::class.java,
         "color_correction" to ColorCorrectionTile::class.java,
-        "dream" to DreamTile::class.java
+        "dream" to DreamTile::class.java,
+        "font_scaling" to FontScalingTile::class.java
 )
 
 @RunWith(AndroidTestingRunner::class)
@@ -126,6 +128,7 @@ class QSFactoryImplTest : SysuiTestCase() {
     @Mock private lateinit var oneHandedModeTile: OneHandedModeTile
     @Mock private lateinit var colorCorrectionTile: ColorCorrectionTile
     @Mock private lateinit var dreamTile: DreamTile
+    @Mock private lateinit var fontScalingTile: FontScalingTile
 
     private lateinit var factory: QSFactoryImpl
 
@@ -167,7 +170,8 @@ class QSFactoryImplTest : SysuiTestCase() {
                 { qrCodeScannerTile },
                 { oneHandedModeTile },
                 { colorCorrectionTile },
-                { dreamTile }
+                { dreamTile },
+                { fontScalingTile }
         )
         // When adding/removing tiles, fix also [specMap]
     }