From 5be18eeec67c248e59525469ea97a7d4b99e5355 Mon Sep 17 00:00:00 2001
From: Sergei Ilinykh <rion4ik@gmail.com>
Date: Mon, 8 Jul 2024 01:00:51 +0300
Subject: [PATCH] Adium: scrolling hack for compatibility with webengine

---
 themes/chatview/adium/Template.html |  5 ++---
 themes/chatview/adium/adapter.js    | 12 ++++++++++++
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/themes/chatview/adium/Template.html b/themes/chatview/adium/Template.html
index e096d2e5d..dfb08ecb9 100644
--- a/themes/chatview/adium/Template.html
+++ b/themes/chatview/adium/Template.html
@@ -214,11 +214,10 @@
 
         //Auto-scroll to bottom.  Use nearBottom to determine if a scrollToBottom is desired.
         function nearBottom() {
-            return ( (document.documentElement.scrollTop + document.body.scrollTop) >= ( document.body.offsetHeight - ( window.innerHeight * 1.2 ) ) );
+            return ( document.body.scrollTop >= ( document.body.offsetHeight - ( window.innerHeight * 1.2 ) ) );
         }
         function scrollToBottom() {
             document.body.scrollTop = document.body.offsetHeight;
-            document.documentElement.scrollTop = document.body.offsetHeight;
         }
 
         //Dynamically exchange the active stylesheet
@@ -321,7 +320,7 @@
         .actionMessageBody:before { content:"*"; }
         .actionMessageBody:after { content:"*"; }
         * { word-wrap:break-word; text-rendering: optimizelegibility; }
-        img.scaledToFitImage { height: auto; max-width: 100%%; }
+        img.scaledToFitImage { height: auto; max-width: 100%; }
     </style>
 
     <!-- This style is shared by all variants. !-->
diff --git a/themes/chatview/adium/adapter.js b/themes/chatview/adium/adapter.js
index 73a756642..ca4015244 100644
--- a/themes/chatview/adium/adapter.js
+++ b/themes/chatview/adium/adapter.js
@@ -567,6 +567,18 @@ chat.util.updateObject(adapter, function(chat){
 
                 session.newMessage.connect(chat.receiveObject);
                 session.scrollRequested.connect((value) => { window.scrollBy(0, value); });
+                if (QWebChannel) {
+                    // define compatibility hack for webengine
+                    Object.defineProperty(document.body, "scrollTop", {
+                        set: function(x) { document.documentElement.scrollTop = x; },
+                        get: function() { return document.documentElement.scrollTop; }
+                    });
+                    Object.defineProperty(document.body, "scrollHeight", {
+                        set: function(x) { document.documentElement.scrollHeight = x; },
+                        get: function() { return document.documentElement.scrollHeight; }
+                    });
+                }
+
                 chat.util.rereadOptions();
                 session.signalInited();
             }