From 387d2e12bb76fc0173fd5a7a56f0f256e213b53d Mon Sep 17 00:00:00 2001
From: SpiritCroc <dev@spiritcroc.de>
Date: Tue, 21 Jun 2022 21:30:18 +0200
Subject: [PATCH] Inline images: Use alt text in room previews and
 notifications

Change-Id: I6649794d31582c3f5e6ab3e151a866663d4645ee
---
 .../java/org/matrix/android/sdk/api/util/ContentUtils.kt  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/util/ContentUtils.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/util/ContentUtils.kt
index e453cb2df5..84c8bb4fb1 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/util/ContentUtils.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/util/ContentUtils.kt
@@ -15,6 +15,7 @@
  */
 package org.matrix.android.sdk.api.util
 
+import org.matrix.android.sdk.api.extensions.tryOrNull
 import org.matrix.android.sdk.internal.util.unescapeHtml
 
 object ContentUtils {
@@ -53,6 +54,13 @@ object ContentUtils {
         // can capture the spoiler reason for better formatting? ex. { reason = it.value;  ">"}
         return formattedBody.replace("(?<=<span data-mx-spoiler)=\\\".+?\\\">".toRegex(), ">")
                 .replace("(?<=<span data-mx-spoiler>).+?(?=</span>)".toRegex()) { SPOILER_CHAR.repeat(it.value.length) }
+                // Replace inline images with alt text
+                .replace(Regex("""<img(\s+[^>]*)>""")) { matchResult ->
+                    tryOrNull {
+                        val alt = Regex("""\s+alt="([^"]*)"""").find(matchResult.groupValues[1])
+                        alt?.groupValues?.get(1)
+                    } ?: ""
+                }
                 .unescapeHtml()
     }