Merge "Implement Font Scaling Quick Settings Tile (4/n)" into tm-qpr-dev am: c0e6f4e8d7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21336878

Change-Id: Ia93ce282085bf45db533a8014c7309b488e74a89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialog.kt

@@ -16,13 +16,32 @@
 package com.android.systemui.accessibility.fontscaling
 
 import android.content.Context
+import android.content.pm.ActivityInfo
+import android.content.res.Configuration
 import android.os.Bundle
+import android.provider.Settings
 import android.view.LayoutInflater
+import android.widget.Button
+import android.widget.SeekBar
+import android.widget.SeekBar.OnSeekBarChangeListener
+import android.widget.TextView
 import com.android.systemui.R
+import com.android.systemui.common.ui.view.SeekBarWithIconButtonsView
 import com.android.systemui.statusbar.phone.SystemUIDialog
+import com.android.systemui.util.settings.SystemSettings
 
 /** The Dialog that contains a seekbar for changing the font size. */
-class FontScalingDialog(context: Context) : SystemUIDialog(context) {
+class FontScalingDialog(context: Context, private val systemSettings: SystemSettings) :
+    SystemUIDialog(context) {
+    private val strEntryValues: Array<String> =
+        context.resources.getStringArray(com.android.settingslib.R.array.entryvalues_font_size)
+    private lateinit var title: TextView
+    private lateinit var doneButton: Button
+    private lateinit var seekBarWithIconButtonsView: SeekBarWithIconButtonsView
+
+    private val configuration: Configuration =
+        Configuration(context.getResources().getConfiguration())
+
     override fun onCreate(savedInstanceState: Bundle?) {
         setTitle(R.string.font_scaling_dialog_title)
         setView(LayoutInflater.from(context).inflate(R.layout.font_scaling_dialog, null))
@@ -32,5 +51,57 @@ class FontScalingDialog(context: Context) : SystemUIDialog(context) {
             /* dismissOnClick = */ true
         )
         super.onCreate(savedInstanceState)
+
+        title = requireViewById(com.android.internal.R.id.alertTitle)
+        doneButton = requireViewById(com.android.internal.R.id.button1)
+        seekBarWithIconButtonsView = requireViewById(R.id.font_scaling_slider)
+
+        seekBarWithIconButtonsView.setMax((strEntryValues).size - 1)
+
+        val currentScale = systemSettings.getFloat(Settings.System.FONT_SCALE, 1.0f)
+        seekBarWithIconButtonsView.setProgress(fontSizeValueToIndex(currentScale))
+
+        seekBarWithIconButtonsView.setOnSeekBarChangeListener(
+            object : OnSeekBarChangeListener {
+                override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+                    systemSettings.putString(Settings.System.FONT_SCALE, strEntryValues[progress])
+                }
+
+                override fun onStartTrackingTouch(seekBar: SeekBar) {
+                    // Do nothing
+                }
+
+                override fun onStopTrackingTouch(seekBar: SeekBar) {
+                    // Do nothing
+                }
+            }
+        )
+        doneButton.setOnClickListener { dismiss() }
+    }
+
+    private fun fontSizeValueToIndex(value: Float): Int {
+        var lastValue = strEntryValues[0].toFloat()
+        for (i in 1 until strEntryValues.size) {
+            val thisValue = strEntryValues[i].toFloat()
+            if (value < lastValue + (thisValue - lastValue) * .5f) {
+                return i - 1
+            }
+            lastValue = thisValue
+        }
+        return strEntryValues.size - 1
+    }
+
+    override fun onConfigurationChanged(configuration: Configuration) {
+        super.onConfigurationChanged(configuration)
+
+        val configDiff = configuration.diff(this.configuration)
+        this.configuration.setTo(configuration)
+
+        if (configDiff and ActivityInfo.CONFIG_FONT_SCALE != 0) {
+            title.post {
+                title.setTextAppearance(R.style.TextAppearance_Dialog_Title)
+                doneButton.setTextAppearance(R.style.Widget_Dialog_Button)
+            }
+        }
     }
 }

packages/SystemUI/src/com/android/systemui/common/ui/view/SeekBarWithIconButtonsView.java

@@ -152,6 +152,13 @@ public class SeekBarWithIconButtonsView extends LinearLayout {
         setIconViewAndFrameEnabled(mIconEnd, progress < mSeekbar.getMax());
     }
 
+    /**
+     * Sets max to the seekbar in the layout.
+     */
+    public void setMax(int max) {
+        mSeekbar.setMax(max);
+    }
+
     /**
      * Sets progress to the seekbar in the layout.
      * If the progress is smaller than or equals to 0, the IconStart will be disabled. If the

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

@@ -35,6 +35,7 @@ import com.android.systemui.qs.QSHost
 import com.android.systemui.qs.logging.QSLogger
 import com.android.systemui.qs.tileimpl.QSTileImpl
 import com.android.systemui.statusbar.phone.SystemUIDialog
+import com.android.systemui.util.settings.SystemSettings
 import javax.inject.Inject
 
 class FontScalingTile
@@ -48,7 +49,8 @@ constructor(
     statusBarStateController: StatusBarStateController,
     activityStarter: ActivityStarter,
     qsLogger: QSLogger,
-    private val dialogLaunchAnimator: DialogLaunchAnimator
+    private val dialogLaunchAnimator: DialogLaunchAnimator,
+    private val systemSettings: SystemSettings
 ) :
     QSTileImpl<QSTile.State?>(
         host,
@@ -74,7 +76,7 @@ constructor(
 
     override fun handleClick(view: View?) {
         mUiHandler.post {
-            val dialog: SystemUIDialog = FontScalingDialog(mContext)
+            val dialog: SystemUIDialog = FontScalingDialog(mContext, systemSettings)
             if (view != null) {
                 dialogLaunchAnimator.showFromView(
                     dialog,

packages/SystemUI/tests/src/com/android/systemui/accessibility/fontscaling/FontScalingDialogTest.kt

@@ -0,0 +1,107 @@
+/*
+ * 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.accessibility.fontscaling
+
+import android.os.Handler
+import android.provider.Settings
+import android.testing.AndroidTestingRunner
+import android.testing.TestableLooper
+import android.widget.ImageView
+import android.widget.SeekBar
+import androidx.test.filters.SmallTest
+import com.android.systemui.R
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.common.ui.view.SeekBarWithIconButtonsView
+import com.android.systemui.util.settings.FakeSettings
+import com.android.systemui.util.settings.SystemSettings
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/** Tests for [FontScalingDialog]. */
+@SmallTest
+@RunWith(AndroidTestingRunner::class)
+@TestableLooper.RunWithLooper(setAsMainLooper = true)
+class FontScalingDialogTest : SysuiTestCase() {
+    private lateinit var fontScalingDialog: FontScalingDialog
+    private lateinit var systemSettings: SystemSettings
+    private val fontSizeValueArray: Array<String> =
+        mContext
+            .getResources()
+            .getStringArray(com.android.settingslib.R.array.entryvalues_font_size)
+
+    @Before
+    fun setUp() {
+        val mainHandler = Handler(TestableLooper.get(this).getLooper())
+        systemSettings = FakeSettings()
+        fontScalingDialog = FontScalingDialog(mContext, systemSettings as FakeSettings)
+    }
+
+    @Test
+    fun showTheDialog_seekbarIsShowingCorrectProgress() {
+        fontScalingDialog.show()
+
+        val seekBar: SeekBar = fontScalingDialog.findViewById<SeekBar>(R.id.seekbar)!!
+        val progress: Int = seekBar.getProgress()
+        val currentScale = systemSettings.getFloat(Settings.System.FONT_SCALE, /* def = */ 1.0f)
+
+        assertThat(currentScale).isEqualTo(fontSizeValueArray[progress].toFloat())
+
+        fontScalingDialog.dismiss()
+    }
+
+    @Test
+    fun progressIsZero_clickIconEnd_seekBarProgressIncreaseOne_fontSizeScaled() {
+        fontScalingDialog.show()
+
+        val iconEnd: ImageView = fontScalingDialog.findViewById(R.id.icon_end)!!
+        val seekBarWithIconButtonsView: SeekBarWithIconButtonsView =
+            fontScalingDialog.findViewById(R.id.font_scaling_slider)!!
+        val seekBar: SeekBar = fontScalingDialog.findViewById(R.id.seekbar)!!
+
+        seekBarWithIconButtonsView.setProgress(0)
+
+        iconEnd.performClick()
+
+        val currentScale = systemSettings.getFloat(Settings.System.FONT_SCALE, /* def = */ 1.0f)
+        assertThat(seekBar.getProgress()).isEqualTo(1)
+        assertThat(currentScale).isEqualTo(fontSizeValueArray[1].toFloat())
+
+        fontScalingDialog.dismiss()
+    }
+
+    @Test
+    fun progressIsMax_clickIconStart_seekBarProgressDecreaseOne_fontSizeScaled() {
+        fontScalingDialog.show()
+
+        val iconStart: ImageView = fontScalingDialog.findViewById(R.id.icon_start)!!
+        val seekBarWithIconButtonsView: SeekBarWithIconButtonsView =
+            fontScalingDialog.findViewById(R.id.font_scaling_slider)!!
+        val seekBar: SeekBar = fontScalingDialog.findViewById(R.id.seekbar)!!
+
+        seekBarWithIconButtonsView.setProgress(fontSizeValueArray.size - 1)
+
+        iconStart.performClick()
+
+        val currentScale = systemSettings.getFloat(Settings.System.FONT_SCALE, /* def = */ 1.0f)
+        assertThat(seekBar.getProgress()).isEqualTo(fontSizeValueArray.size - 2)
+        assertThat(currentScale)
+            .isEqualTo(fontSizeValueArray[fontSizeValueArray.size - 2].toFloat())
+
+        fontScalingDialog.dismiss()
+    }
+}

packages/SystemUI/tests/src/com/android/systemui/qs/tiles/dialog/FontScalingTileTest.kt

@@ -28,6 +28,7 @@ import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.qs.QSTileHost
 import com.android.systemui.qs.logging.QSLogger
 import com.android.systemui.qs.tiles.FontScalingTile
+import com.android.systemui.util.settings.FakeSettings
 import com.google.common.truth.Truth.assertThat
 import org.junit.Before
 import org.junit.Test
@@ -65,7 +66,8 @@ class FontScalingTileTest : SysuiTestCase() {
                 statusBarStateController,
                 activityStarter,
                 qsLogger,
-                dialogLaunchAnimator
+                dialogLaunchAnimator,
+                FakeSettings()
             )
         fontScalingTile.initialize()
     }