From 6143d11e1ac36cd51591261972f3d0cb60013c2a Mon Sep 17 00:00:00 2001
From: Integral <integral@member.fsf.org>
Date: Thu, 9 Jan 2025 13:39:27 +0800
Subject: [PATCH] Decode HTML entities when copying text to clipboard (fixes
 #1850)

Currently, when using `Copy` in the context menu, the text will be
HTML escaped (e.g. `"` becomes `&quot;`). Add a function to decode
HTML entities when copying to clipboard.

This PR fixes issue #1850.
---
 resources/qml/MessageView.qml | 4 ++--
 src/Clipboard.cpp             | 7 +++++++
 src/Clipboard.h               | 1 +
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/resources/qml/MessageView.qml b/resources/qml/MessageView.qml
index ea46b6ef..b7c19ba7 100644
--- a/resources/qml/MessageView.qml
+++ b/resources/qml/MessageView.qml
@@ -477,7 +477,7 @@ Item {
                     text: qsTr("&Copy")
                     visible: messageContextMenuC.text
 
-                    onTriggered: Clipboard.text = messageContextMenuC.text
+                    onTriggered: Clipboard.setHtmlText(messageContextMenuC.text)
                 }
             }
             Component {
@@ -679,7 +679,7 @@ Item {
                     text: qsTr("&Copy")
                     visible: replyContextMenuC.text
 
-                    onTriggered: Clipboard.text = replyContextMenuC.text
+                    onTriggered: Clipboard.setHtmlText(replyContextMenuC.text)
                 }
             }
             Component {
diff --git a/src/Clipboard.cpp b/src/Clipboard.cpp
index cb02f5fa..bdcc1f7a 100644
--- a/src/Clipboard.cpp
+++ b/src/Clipboard.cpp
@@ -6,6 +6,7 @@
 
 #include <QClipboard>
 #include <QGuiApplication>
+#include <QTextDocumentFragment>
 
 Clipboard::Clipboard(QObject *parent)
   : QObject(parent)
@@ -19,6 +20,12 @@ Clipboard::setText(QString text)
     QGuiApplication::clipboard()->setText(text);
 }
 
+void
+Clipboard::setHtmlText(QString text)
+{
+    setText(QTextDocumentFragment::fromHtml(text).toPlainText());
+}
+
 QString
 Clipboard::text() const
 {
diff --git a/src/Clipboard.h b/src/Clipboard.h
index e3321c02..1386b802 100644
--- a/src/Clipboard.h
+++ b/src/Clipboard.h
@@ -21,6 +21,7 @@ public:
 
     QString text() const;
     void setText(QString text_);
+    Q_INVOKABLE void setHtmlText(QString text_);
 signals:
     void textChanged();
 };