Auto play GIF media.

Respect Remove/Reduce animations accessibility setting for GIF playback.

Signed-off-by: Jens Zalzala <jens@shakingearthdigital.com>

Author: anakin78z

app/src/main/java/com/nextcloud/talk/chat/ui/model/ChatMessageUi.kt

@@ -7,6 +7,7 @@
 
 package com.nextcloud.talk.chat.ui.model
 
+import android.provider.Settings
 import androidx.compose.runtime.Stable
 import com.nextcloud.talk.R
 import com.nextcloud.talk.application.NextcloudTalkApplication.Companion.sharedApplication
@@ -15,7 +16,9 @@ import com.nextcloud.talk.data.database.model.SendStatus
 import com.nextcloud.talk.data.user.model.User
 import com.nextcloud.talk.ui.PlaybackSpeed
 import com.nextcloud.talk.utils.ApiUtils
+import com.nextcloud.talk.utils.CapabilitiesUtil
 import com.nextcloud.talk.utils.DrawableUtils
+import com.nextcloud.talk.utils.MimetypeUtils
 import java.time.LocalDate
 
 // immutable class for chat message UI. only val, no vars!
@@ -54,7 +57,12 @@ sealed interface MessageTypeContent {
 
     data class LinkPreview(val url: String) : MessageTypeContent
 
-    data class Media(val previewUrl: String?, val drawableResourceId: Int) : MessageTypeContent
+    data class Media(
+        val previewUrl: String?,
+        val drawableResourceId: Int,
+        val mimeType: String,
+        val animateGif: Boolean = false
+    ) : MessageTypeContent
 
     data class Geolocation(val id: String, val name: String, val lat: Double, val lon: Double) : MessageTypeContent
 
@@ -203,16 +211,52 @@ fun getMessageTypeContent(user: User, message: ChatMessage): MessageTypeContent?
     }
 
 fun getMediaContent(user: User, message: ChatMessage): MessageTypeContent.Media {
-    val previewUrl = getPreviewImageUrl(user, message)
     val mimetype = message.fileParameters.mimetype
     val drawableResourceId = DrawableUtils.getDrawableResourceIdForMimeType(mimetype)
 
+    val animateGif = shouldAnimateGif(user, message, mimetype)
+    val previewUrl = if (animateGif) {
+        ApiUtils.getUrlForFileDownload(
+            user.baseUrl!!,
+            user.userId!!,
+            message.fileParameters.path
+        )
+    } else {
+        getPreviewImageUrl(user, message)
+    }
+
     return MessageTypeContent.Media(
-        previewUrl,
-        drawableResourceId
+        previewUrl = previewUrl,
+        drawableResourceId = drawableResourceId,
+        mimeType = mimetype,
+        animateGif = animateGif
     )
 }
 
+private fun shouldAnimateGif(user: User, message: ChatMessage, mimetype: String): Boolean {
+    val fileSize = message.fileParameters.size
+    val spreedCapabilities = user.capabilities?.spreedCapability
+    return MimetypeUtils.isGif(mimetype) &&
+        fileSize != null &&
+        message.fileParameters.path.isNotEmpty() &&
+        spreedCapabilities != null &&
+        fileSize <= CapabilitiesUtil.getMaxGifSize(spreedCapabilities) &&
+        !isReduceAnimationsEnabled()
+}
+
+/**
+ * Returns true if the user has the accessibility option
+ * for Remove/Reduce animations turned on
+ */
+private fun isReduceAnimationsEnabled(): Boolean {
+    val context = sharedApplication ?: return false
+    return Settings.Global.getFloat(
+        context.contentResolver,
+        Settings.Global.ANIMATOR_DURATION_SCALE,
+        1f
+    ) == 0f
+}
+
 fun getPreviewImageUrl(user: User, message: ChatMessage): String? {
     if (message.fileParameters.previewAvailable) {
         return ApiUtils.getUrlForFilePreviewWithFileId(

app/src/main/java/com/nextcloud/talk/ui/chat/ChatMessageView.kt

@@ -234,7 +234,8 @@ private fun ChatMessageViewMediaPreview() {
         val uiMessage = createBaseMessage(
             MessageTypeContent.Media(
                 previewUrl = null,
-                drawableResourceId = R.drawable.ic_mimetype_image
+                drawableResourceId = R.drawable.ic_mimetype_image,
+                mimeType = ""
             )
         )
         ChatMessageView(message = uiMessage)
@@ -248,7 +249,8 @@ private fun ChatMessageViewMediaPreviewWithoutCaption() {
         val uiMessage = createBaseMessageWithoutCaption(
             MessageTypeContent.Media(
                 previewUrl = null,
-                drawableResourceId = R.drawable.ic_mimetype_image
+                drawableResourceId = R.drawable.ic_mimetype_image,
+                mimeType = ""
             )
         )
         ChatMessageView(message = uiMessage)

app/src/main/java/com/nextcloud/talk/ui/chat/MediaMessage.kt

@@ -31,6 +31,7 @@ import com.nextcloud.talk.R
 import com.nextcloud.talk.chat.ui.model.ChatMessageUi
 import com.nextcloud.talk.chat.ui.model.MessageTypeContent
 import com.nextcloud.talk.contacts.load
+import com.nextcloud.talk.utils.MimetypeUtils
 
 private const val FILE_PLACEHOLDER_MESSAGE = "{file}"
 
@@ -78,15 +79,18 @@ fun MediaMessage(
             Column {
                 val context = LocalContext.current
                 val resourceName = context.resources.getResourceEntryName(typeContent.drawableResourceId)
+                val isGif = MimetypeUtils.isGif(typeContent.mimeType)
                 val showPlayButton = !typeContent.previewUrl.isNullOrEmpty() &&
-                    (resourceName.contains("video") || resourceName.contains("audio"))
+                    (resourceName.contains("video") || resourceName.contains("audio") ||
+                        (isGif && !typeContent.animateGif))
 
                 Box(modifier = Modifier.fillMaxWidth()) {
                     val loadedImage = remember(typeContent.previewUrl) {
                         load(
                             imageUri = typeContent.previewUrl,
                             context = context,
-                            errorPlaceholderImage = typeContent.drawableResourceId
+                            errorPlaceholderImage = typeContent.drawableResourceId,
+                            animated = typeContent.animateGif
                         )
                     }