add play button for video messages

app/src/main/java/com/nextcloud/talk/adapters/messages/IncomingPreviewMessageViewHolder.java

@@ -35,6 +35,7 @@ public class IncomingPreviewMessageViewHolder extends PreviewMessageViewHolder {
     public IncomingPreviewMessageViewHolder(View itemView, Object payload) {
         super(itemView, payload);
         binding = ItemCustomIncomingPreviewMessageBinding.bind(itemView);
+        setVideoPlayButton(binding.videoPlayButton);
     }
 
     @Override

app/src/main/java/com/nextcloud/talk/adapters/messages/OutcomingPreviewMessageViewHolder.java

@@ -35,6 +35,7 @@ public class OutcomingPreviewMessageViewHolder extends PreviewMessageViewHolder
     public OutcomingPreviewMessageViewHolder(View itemView) {
         super(itemView, null);
         binding = ItemCustomOutcomingPreviewMessageBinding.bind(itemView);
+        setVideoPlayButton(binding.videoPlayButton);
     }
 
     @Override

app/src/main/java/com/nextcloud/talk/adapters/messages/PreviewMessageViewHolder.kt

@@ -81,6 +81,7 @@ abstract class PreviewMessageViewHolder(itemView: View?, payload: Any?) :
     open var progressBar: ProgressBar? = null
     open var reactionsBinding: ReactionsInsideMessageBinding? = null
     open var threadsBinding: ItemThreadTitleBinding? = null
+    open var videoPlayButton: ImageView? = null
     var fileViewerUtils: FileViewerUtils? = null
     var clickView: View? = null
 
@@ -104,6 +105,8 @@ abstract class PreviewMessageViewHolder(itemView: View?, payload: Any?) :
         viewThemeUtils!!.platform.colorCircularProgressBar(progressBar!!, ColorRole.PRIMARY)
         clickView = image
         messageText.visibility = View.VISIBLE
+        val isVideoPreview = message.selectedIndividualHashMap?.get(KEY_MIMETYPE)?.startsWith("video/") == true
+        videoPlayButton?.visibility = if (isVideoPreview) View.VISIBLE else View.GONE
         if (message.getCalculateMessageType() === ChatMessage.MessageType.SINGLE_NC_ATTACHMENT_MESSAGE) {
             fileViewerUtils = FileViewerUtils(context!!, message.activeUser!!)
             val fileName = message.selectedIndividualHashMap!![KEY_NAME]

app/src/main/res/drawable/outline_play_circle_24.xml

@@ -0,0 +1,18 @@
+<!--
+  ~ Nextcloud Talk - Android Client
+  ~
+  ~ SPDX-FileCopyrightText: 2025 Google LLC
+  ~ SPDX-License-Identifier: Apache-2.0
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportHeight="960"
+    android:viewportWidth="960"
+    android:width="24dp">
+
+    <path android:fillColor="@android:color/white"
+        android:pathData="M380,660L660,480L380,300L380,660ZM480,880Q397,880 324,848.5Q251,817 197,763Q143,709 111.5,636Q80,563 80,480Q80,397 111.5,324Q143,251 197,197Q251,143 324,111.5Q397,80 480,80Q563,80 636,111.5Q709,143 763,197Q817,251 848.5,324Q880,397 880,480Q880,563 848.5,636Q817,709 763,763Q709,817 636,848.5Q563,880 480,880ZM480,800Q614,800 707,707Q800,614 800,480Q800,346 707,253Q614,160 480,160Q346,160 253,253Q160,346 160,480Q160,614 253,707Q346,800 480,800ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Z"/>
+
+</vector>

app/src/main/res/layout/item_custom_incoming_preview_message.xml

@@ -89,6 +89,15 @@
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
                 android:visibility="gone" />
+
+            <ImageView
+                android:id="@+id/video_play_button"
+                android:layout_width="48dp"
+                android:layout_height="48dp"
+                android:layout_gravity="center"
+                android:contentDescription="@string/play_video_message"
+                android:src="@drawable/outline_play_circle_24"
+                android:visibility="gone" />
         </FrameLayout>
 
         <com.google.android.material.card.MaterialCardView

app/src/main/res/layout/item_custom_outcoming_preview_message.xml

@@ -65,6 +65,15 @@
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
                 android:visibility="gone" />
+
+            <ImageView
+                android:id="@+id/video_play_button"
+                android:layout_width="48dp"
+                android:layout_height="48dp"
+                android:layout_gravity="center"
+                android:contentDescription="@string/play_video_message"
+                android:src="@drawable/outline_play_circle_24"
+                android:visibility="gone" />
         </FrameLayout>
 
         <com.google.android.material.card.MaterialCardView

app/src/main/res/values/strings.xml

@@ -907,4 +907,5 @@ How to translate with transifex:
     <string name="turn_on_background_blur">Turn on background blur</string>
     <string name="turn_off_background_blur">Turn off background blur</string>
     <string name="please_continue_the_login_process_in_the_browser">Please continue login in browser</string>
+    <string name="play_video_message">Play video message</string>
 </resources>