Create PrecomputedTextView for Notifications (5807e5e9) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/PrecomputedImageFloatingTextView.kt

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		/*
		* 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.statusbar.notification.row

		import android.content.Context
		import android.util.AttributeSet
		import android.widget.RemoteViews
		import com.android.internal.widget.ImageFloatingTextView

		/** Precomputed version of [ImageFloatingTextView] */
		@RemoteViews.RemoteView
		class PrecomputedImageFloatingTextView
		@JvmOverloads
		constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) :
		ImageFloatingTextView(context, attrs, defStyleAttr), TextPrecomputer {

		override fun setTextAsync(text: CharSequence?): Runnable = precompute(this, text)
		}

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/PrecomputedTextView.kt

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		/*
		* 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.statusbar.notification.row

		import android.content.Context
		import android.util.AttributeSet
		import android.widget.RemoteViews
		import android.widget.TextView

		/**
		* A user interface element that uses the PrecomputedText API to display text in a notification,
		* with the help of RemoteViews.
		*/
		@RemoteViews.RemoteView
		class PrecomputedTextView
		@JvmOverloads
		constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) :
		TextView(context, attrs, defStyleAttr), TextPrecomputer {

		override fun setTextAsync(text: CharSequence?): Runnable = precompute(this, text)
		}

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/TextPrecomputer.kt

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		/*
		* 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.statusbar.notification.row

		import android.text.PrecomputedText
		import android.text.Spannable
		import android.util.Log
		import android.widget.TextView

		internal interface TextPrecomputer {
		/**
		* Creates PrecomputedText from given text and returns a runnable which sets precomputed text to
		* the textview on main thread.
		*
		* @param text text to be converted to PrecomputedText
		* @return Runnable that sets precomputed text on the main thread
		*/
		fun precompute(
		textView: TextView,
		text: CharSequence?,
		logException: Boolean = true
		): Runnable {
		val precomputedText: Spannable? =
		text?.let { PrecomputedText.create(it, textView.textMetricsParams) }

		return Runnable {
		try {
		textView.text = precomputedText
		} catch (exception: IllegalArgumentException) {
		if (logException) {
		Log.wtf(
		/* tag = */ TAG,
		/* msg = */ "PrecomputedText setText failed for TextView:$textView",
		/* tr = */ exception
		)
		}
		textView.text = text
		}
		}
		}

		private companion object {
		private const val TAG = "TextPrecomputer"
		}
		}

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/TextPrecomputerTest.kt

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		/*
		* 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.statusbar.notification.row

		import android.testing.AndroidTestingRunner
		import android.testing.TestableLooper.RunWithLooper
		import android.text.PrecomputedText
		import android.text.TextPaint
		import android.widget.TextView
		import androidx.test.filters.SmallTest
		import com.android.systemui.SysuiTestCase
		import com.google.common.truth.Truth.assertThat
		import org.junit.Before
		import org.junit.Test
		import org.junit.runner.RunWith

		@SmallTest
		@RunWith(AndroidTestingRunner::class)
		@RunWithLooper
		class TextPrecomputerTest : SysuiTestCase() {

		private lateinit var textPrecomputer: TextPrecomputer

		private lateinit var textView: TextView

		@Before
		fun before() {
		textPrecomputer = object : TextPrecomputer {}
		textView = TextView(mContext)
		}

		@Test
		fun precompute_returnRunnable() {
		// WHEN
		val precomputeResult = textPrecomputer.precompute(textView, TEXT)

		// THEN
		assertThat(precomputeResult).isInstanceOf(Runnable::class.java)
		}

		@Test
		fun precomputeRunnable_anyText_setPrecomputedText() {
		// WHEN
		textPrecomputer.precompute(textView, TEXT).run()

		// THEN
		assertThat(textView.text).isInstanceOf(PrecomputedText::class.java)
		}

		@Test
		fun precomputeRunnable_differentPrecomputedTextConfig_notSetPrecomputedText() {
		// GIVEN
		val precomputedTextRunnable =
		textPrecomputer.precompute(textView, TEXT, logException = false)

		// WHEN
		textView.textMetricsParams = PrecomputedText.Params.Builder(PAINT).build()
		precomputedTextRunnable.run()

		// THEN
		assertThat(textView.text).isInstanceOf(String::class.java)
		}

		@Test
		fun precomputeRunnable_nullText_setNull() {
		// GIVEN
		textView.text = TEXT
		val precomputedTextRunnable = textPrecomputer.precompute(textView, null)

		// WHEN
		precomputedTextRunnable.run()

		// THEN
		assertThat(textView.text).isEqualTo("")
		}

		private companion object {
		private val PAINT = TextPaint()
		private const val TEXT = "Example Notification Test"
		}
		}