Emoji fix

changelog.d/4698.bugfix

@@ -0,0 +1 @@
+Fix a crash in the timeline with some Emojis. Also migrate to androidx.emoji2

vector/build.gradle

@@ -449,7 +449,7 @@ dependencies {
     // OSS License, gplay flavor only
     gplayImplementation 'com.google.android.gms:play-services-oss-licenses:17.0.0'
 
-    implementation "androidx.emoji:emoji-appcompat:1.1.0"
+    implementation "androidx.emoji2:emoji2:1.0.0"
     implementation('com.github.BillCarsonFr:JsonViewer:0.7')
 
     // WebRTC

vector/src/androidTest/java/im/vector/app/features/html/SpanUtilsTest.kt

@@ -39,6 +39,10 @@ class SpanUtilsTest : InstrumentedTest {
 
     private val spanUtils = SpanUtils()
 
+    private fun SpanUtils.canUseTextFuture(message: CharSequence): Boolean {
+        return getBindingOptions(message).canUseTextFuture
+    }
+
     @Test
     fun canUseTextFutureString() {
         spanUtils.canUseTextFuture("test").shouldBeTrue()
@@ -92,5 +96,30 @@ class SpanUtilsTest : InstrumentedTest {
         spanUtils.canUseTextFuture(string) shouldBeEqualTo trueIfAlwaysAllowed()
     }
 
+    @Test
+    fun testGetBindingOptionsRegular() {
+        val string = SpannableString("Text")
+        val result = spanUtils.getBindingOptions(string)
+        result.canUseTextFuture shouldBeEqualTo true
+        result.preventMutation shouldBeEqualTo false
+    }
+
+    @Test
+    fun testGetBindingOptionsStrikethrough() {
+        val string = SpannableString("Text with strikethrough")
+        string.setSpan(StrikethroughSpan(), 10, 23, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
+        val result = spanUtils.getBindingOptions(string)
+        result.canUseTextFuture shouldBeEqualTo false
+        result.preventMutation shouldBeEqualTo false
+    }
+
+    @Test
+    fun testGetBindingOptionsMetricAffectingSpan() {
+        val string = SpannableString("Emoji \uD83D\uDE2E\u200D\uD83D\uDCA8")
+        val result = spanUtils.getBindingOptions(string)
+        result.canUseTextFuture shouldBeEqualTo false
+        result.preventMutation shouldBeEqualTo true
+    }
+
     private fun trueIfAlwaysAllowed() = Build.VERSION.SDK_INT < Build.VERSION_CODES.P
 }

vector/src/main/AndroidManifest.xml

@@ -398,6 +398,9 @@
                 android:name="androidx.work.WorkManagerInitializer"
                 android:value="androidx.startup"
                 tools:node="remove" />
+            <!-- We init the lib ourself in EmojiCompatWrapper -->
+            <meta-data android:name="androidx.emoji2.text.EmojiCompatInitializer"
+                tools:node="remove" />
         </provider>
 
         <provider

vector/src/main/java/im/vector/app/EmojiCompatWrapper.kt

@@ -17,8 +17,8 @@ package im.vector.app
 
 import android.content.Context
 import androidx.core.provider.FontRequest
-import androidx.emoji.text.EmojiCompat
-import androidx.emoji.text.FontRequestEmojiCompatConfig
+import androidx.emoji2.text.EmojiCompat
+import androidx.emoji2.text.FontRequestEmojiCompatConfig
 import timber.log.Timber
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -52,7 +52,7 @@ class EmojiCompatWrapper @Inject constructor(private val context: Context) {
     fun safeEmojiSpanify(sequence: CharSequence): CharSequence {
         if (initialized) {
             try {
-                return EmojiCompat.get().process(sequence)
+                return EmojiCompat.get().process(sequence) ?: sequence
             } catch (throwable: Throwable) {
                 // Defensive coding against error (should not happend as it is initialized)
                 Timber.e(throwable, "Failed to init EmojiCompat")

vector/src/main/java/im/vector/app/core/epoxy/bottomsheet/BottomSheetMessagePreviewItem.kt

@@ -27,10 +27,13 @@ import im.vector.app.core.epoxy.ClickListener
 import im.vector.app.core.epoxy.VectorEpoxyHolder
 import im.vector.app.core.epoxy.VectorEpoxyModel
 import im.vector.app.core.epoxy.onClick
+import im.vector.app.core.epoxy.util.preventMutation
 import im.vector.app.core.extensions.setTextOrHide
 import im.vector.app.features.home.AvatarRenderer
+import im.vector.app.features.home.room.detail.timeline.item.BindingOptions
 import im.vector.app.features.home.room.detail.timeline.tools.findPillsAndProcess
 import im.vector.app.features.media.ImageContentRenderer
+import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.util.MatrixItem
 
 /**
@@ -48,6 +51,9 @@ abstract class BottomSheetMessagePreviewItem : VectorEpoxyModel<BottomSheetMessa
     @EpoxyAttribute
     lateinit var body: CharSequence
 
+    @EpoxyAttribute
+    var bindingOptions: BindingOptions? = null
+
     @EpoxyAttribute
     var bodyDetails: CharSequence? = null
 
@@ -77,7 +83,11 @@ abstract class BottomSheetMessagePreviewItem : VectorEpoxyModel<BottomSheetMessa
         }
         holder.imagePreview.isVisible = data != null
         holder.body.movementMethod = movementMethod
-        holder.body.text = body
+        holder.body.text = if (bindingOptions?.preventMutation.orFalse()) {
+            body.preventMutation()
+        } else {
+            body
+        }
         holder.bodyDetails.setTextOrHide(bodyDetails)
         body.findPillsAndProcess(coroutineScope) { it.bind(holder.body) }
         holder.timestamp.setTextOrHide(time)

vector/src/main/java/im/vector/app/core/epoxy/util/Extensions.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2021 New Vector Ltd
+ *
+ * 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 im.vector.app.core.epoxy.util
+
+import android.text.SpannableString
+
+fun CharSequence?.preventMutation(): CharSequence? = this?.let { SpannableString(it) }

vector/src/main/java/im/vector/app/core/linkify/VectorLinkify.kt

@@ -30,7 +30,7 @@ object VectorLinkify {
 
         if (keepExistingUrlSpan) {
             // Keep track of existing URLSpans, and mark them as important
-            spannable.forEachSpanIndexed { _, urlSpan, start, end ->
+            spannable.forEachUrlSpanIndexed { _, urlSpan, start, end ->
                 createdSpans.add(LinkSpec(URLSpan(urlSpan.url), start, end, important = true))
             }
         }
@@ -39,15 +39,15 @@ object VectorLinkify {
         LinkifyCompat.addLinks(spannable, Linkify.WEB_URLS or Linkify.EMAIL_ADDRESSES or Linkify.PHONE_NUMBERS)
 
         // we might want to modify some matches
-        spannable.forEachSpanIndexed { _, urlSpan, start, end ->
+        spannable.forEachUrlSpanIndexed { _, urlSpan, start, end ->
             spannable.removeSpan(urlSpan)
 
             // remove short PN, too much false positive
             if (urlSpan.url?.startsWith("tel:") == true) {
                 if (end - start > 6) { // Do not match under 7 digit
                     createdSpans.add(LinkSpec(URLSpan(urlSpan.url), start, end))
                 }
-                return@forEachSpanIndexed
+                return@forEachUrlSpanIndexed
             }
 
             // include mailto: if found before match
@@ -60,7 +60,7 @@ object VectorLinkify {
                     createdSpans.add(LinkSpec(URLSpan(urlSpan.url), start, end))
                 }
 
-                return@forEachSpanIndexed
+                return@forEachUrlSpanIndexed
             }
 
             // Handle url matches
@@ -70,7 +70,7 @@ object VectorLinkify {
                 // modify the span to include the slash
                 val spec = LinkSpec(URLSpan(urlSpan.url + "/"), start, end + 1)
                 createdSpans.add(spec)
-                return@forEachSpanIndexed
+                return@forEachUrlSpanIndexed
             }
             // Try to do something for ending ) issues/3020
             if (spannable[end - 1] == ')') {
@@ -87,15 +87,15 @@ object VectorLinkify {
                     val span = URLSpan(spannable.substring(start, end - 1))
                     val spec = LinkSpec(span, start, end - 1)
                     createdSpans.add(spec)
-                    return@forEachSpanIndexed
+                    return@forEachUrlSpanIndexed
                 }
             }
 
             createdSpans.add(LinkSpec(URLSpan(urlSpan.url), start, end))
         }
 
         LinkifyCompat.addLinks(spannable, VectorAutoLinkPatterns.GEO_URI.toPattern(), "geo:", arrayOf("geo:"), geoMatchFilter, null)
-        spannable.forEachSpanIndexed { _, urlSpan, start, end ->
+        spannable.forEachUrlSpanIndexed { _, urlSpan, start, end ->
             spannable.removeSpan(urlSpan)
             createdSpans.add(LinkSpec(URLSpan(urlSpan.url), start, end))
         }
@@ -174,7 +174,7 @@ object VectorLinkify {
         return@MatchFilter true
     }
 
-    private inline fun Spannable.forEachSpanIndexed(action: (index: Int, urlSpan: URLSpan, start: Int, end: Int) -> Unit) {
+    private inline fun Spannable.forEachUrlSpanIndexed(action: (index: Int, urlSpan: URLSpan, start: Int, end: Int) -> Unit) {
         getSpans(0, length, URLSpan::class.java)
                 .forEachIndexed { index, urlSpan ->
                     val start = getSpanStart(urlSpan)

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/MessageActionsEpoxyController.kt

@@ -37,6 +37,7 @@ import im.vector.app.features.home.room.detail.timeline.image.buildImageContentR
 import im.vector.app.features.home.room.detail.timeline.item.E2EDecoration
 import im.vector.app.features.home.room.detail.timeline.tools.createLinkMovementMethod
 import im.vector.app.features.home.room.detail.timeline.tools.linkify
+import im.vector.app.features.html.SpanUtils
 import im.vector.app.features.media.ImageContentRenderer
 import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.failure.Failure
@@ -53,6 +54,7 @@ class MessageActionsEpoxyController @Inject constructor(
         private val imageContentRenderer: ImageContentRenderer,
         private val dimensionConverter: DimensionConverter,
         private val errorFormatter: ErrorFormatter,
+        private val spanUtils: SpanUtils,
         private val eventDetailsFormatter: EventDetailsFormatter,
         private val dateFormatter: VectorDateFormatter
 ) : TypedEpoxyController<MessageActionState>() {
@@ -64,6 +66,8 @@ class MessageActionsEpoxyController @Inject constructor(
         // Message preview
         val date = state.timelineEvent()?.root?.originServerTs
         val formattedDate = dateFormatter.format(date, DateFormatKind.MESSAGE_DETAIL)
+        val body = state.messageBody.linkify(host.listener)
+        val bindingOptions = spanUtils.getBindingOptions(body)
         bottomSheetMessagePreviewItem {
             id("preview")
             avatarRenderer(host.avatarRenderer)
@@ -72,7 +76,8 @@ class MessageActionsEpoxyController @Inject constructor(
             imageContentRenderer(host.imageContentRenderer)
             data(state.timelineEvent()?.buildImageContentRendererData(host.dimensionConverter.dpToPx(66)))
             userClicked { host.listener?.didSelectMenuAction(EventSharedAction.OpenUserProfile(state.informationData.senderId)) }
-            body(state.messageBody.linkify(host.listener))
+            bindingOptions(bindingOptions)
+            body(body)
             bodyDetails(host.eventDetailsFormatter.format(state.timelineEvent()?.root))
             time(formattedDate)
         }

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MessageItemFactory.kt

@@ -16,6 +16,7 @@
 
 package im.vector.app.features.home.room.detail.timeline.factory
 
+import android.text.Spannable
 import android.text.SpannableStringBuilder
 import android.text.Spanned
 import android.text.TextPaint
@@ -472,7 +473,7 @@ class MessageItemFactory @Inject constructor(
                                      highlight: Boolean,
                                      callback: TimelineEventController.Callback?,
                                      attributes: AbsMessageItem.Attributes): MessageTextItem? {
-        val canUseTextFuture = spanUtils.canUseTextFuture(body)
+        val bindingOptions = spanUtils.getBindingOptions(body)
         val linkifiedBody = body.linkify(callback)
 
         return MessageTextItem_().apply {
@@ -484,7 +485,7 @@ class MessageItemFactory @Inject constructor(
             }
         }
                 .useBigFont(linkifiedBody.length <= MAX_NUMBER_OF_EMOJI_FOR_BIG_FONT * 2 && containsOnlyEmojis(linkifiedBody.toString()))
-                .canUseTextFuture(canUseTextFuture)
+                .bindingOptions(bindingOptions)
                 .searchForPills(isFormatted)
                 .previewUrlRetriever(callback?.getPreviewUrlRetriever())
                 .imageContentRenderer(imageContentRenderer)
@@ -515,7 +516,7 @@ class MessageItemFactory @Inject constructor(
 
     private fun annotateWithEdited(linkifiedBody: CharSequence,
                                    callback: TimelineEventController.Callback?,
-                                   informationData: MessageInformationData): SpannableStringBuilder {
+                                   informationData: MessageInformationData): Spannable {
         val spannable = SpannableStringBuilder()
         spannable.append(linkifiedBody)
         val editedSuffix = stringProvider.getString(R.string.edited_suffix)
@@ -564,7 +565,7 @@ class MessageItemFactory @Inject constructor(
             textStyle = "italic"
         }
 
-        val canUseTextFuture = spanUtils.canUseTextFuture(htmlBody)
+        val bindingOptions = spanUtils.getBindingOptions(htmlBody)
         val message = formattedBody.linkify(callback)
 
         return MessageTextItem_()
@@ -574,7 +575,7 @@ class MessageItemFactory @Inject constructor(
                 .previewUrlCallback(callback)
                 .attributes(attributes)
                 .message(message)
-                .canUseTextFuture(canUseTextFuture)
+                .bindingOptions(bindingOptions)
                 .highlighted(highlight)
                 .movementMethod(createLinkMovementMethod(callback))
     }

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/item/BindingOptions.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2021 New Vector Ltd
+ *
+ * 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 im.vector.app.features.home.room.detail.timeline.item
+
+data class BindingOptions(
+        // Allowed by default
+        val canUseTextFuture: Boolean = true,
+        // No need to prevent mutation by default
+        val preventMutation: Boolean = false
+)

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/item/MessageTextItem.kt

@@ -26,12 +26,14 @@ import com.airbnb.epoxy.EpoxyModelClass
 import im.vector.app.R
 import im.vector.app.core.epoxy.onClick
 import im.vector.app.core.epoxy.onLongClickIgnoringLinks
+import im.vector.app.core.epoxy.util.preventMutation
 import im.vector.app.features.home.room.detail.timeline.TimelineEventController
 import im.vector.app.features.home.room.detail.timeline.tools.findPillsAndProcess
 import im.vector.app.features.home.room.detail.timeline.url.PreviewUrlRetriever
 import im.vector.app.features.home.room.detail.timeline.url.PreviewUrlUiState
 import im.vector.app.features.home.room.detail.timeline.url.PreviewUrlView
 import im.vector.app.features.media.ImageContentRenderer
+import org.matrix.android.sdk.api.extensions.orFalse
 
 @EpoxyModelClass(layout = R.layout.item_timeline_event_base)
 abstract class MessageTextItem : AbsMessageItem<MessageTextItem.Holder>() {
@@ -43,7 +45,7 @@ abstract class MessageTextItem : AbsMessageItem<MessageTextItem.Holder>() {
     var message: CharSequence? = null
 
     @EpoxyAttribute
-    var canUseTextFuture: Boolean = true
+    var bindingOptions: BindingOptions? = null
 
     @EpoxyAttribute
     var useBigFont: Boolean = false
@@ -85,7 +87,7 @@ abstract class MessageTextItem : AbsMessageItem<MessageTextItem.Holder>() {
                 it.bind(holder.messageView)
             }
         }
-        val textFuture = if (canUseTextFuture) {
+        val textFuture = if (bindingOptions?.canUseTextFuture.orFalse()) {
             PrecomputedTextCompat.getTextFuture(
                     message ?: "",
                     TextViewCompat.getTextMetricsParams(holder.messageView),
@@ -99,10 +101,14 @@ abstract class MessageTextItem : AbsMessageItem<MessageTextItem.Holder>() {
         holder.messageView.onClick(attributes.itemClickListener)
         holder.messageView.onLongClickIgnoringLinks(attributes.itemLongClickListener)
 
-        if (canUseTextFuture) {
+        if (bindingOptions?.canUseTextFuture.orFalse()) {
             holder.messageView.setTextFuture(textFuture)
         } else {
-            holder.messageView.text = message
+            holder.messageView.text = if (bindingOptions?.preventMutation.orFalse()) {
+                message.preventMutation()
+            } else {
+                message
+            }
         }
     }
 

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/tools/EventRenderingTools.kt

@@ -16,7 +16,6 @@
 
 package im.vector.app.features.home.room.detail.timeline.tools
 
-import android.text.SpannableStringBuilder
 import android.text.style.ClickableSpan
 import android.view.MotionEvent
 import android.widget.TextView
@@ -45,7 +44,7 @@ fun CharSequence.findPillsAndProcess(scope: CoroutineScope, processBlock: (PillI
 
 fun CharSequence.linkify(callback: TimelineEventController.UrlClickCallback?): CharSequence {
     val text = this.toString()
-    val spannable = SpannableStringBuilder(this)
+    val spannable = toSpannable()
     MatrixLinkify.addLinks(spannable, object : MatrixPermalinkSpan.Callback {
         override fun onUrlClicked(url: String) {
             callback?.onUrlClicked(url, text)