fix: prevent zoom with ctrl+mouse

- set zoomfactor using settings

4 files changed, 38 insertions, 0 deletions

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 5cf7916..3d01ba0 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -965,6 +965,7 @@ void MainWindow::handleLoadFinished(bool loaded) {
     updatePageTheme();
     handleZoom();
     injectMutationObserver();
+    injectPreventScrollWheelZoomHelper();
     injectFullWidthJavaScript();
     injectClassChangeObserver();
     injectNewChatJavaScript();
@@ -974,6 +975,28 @@ void MainWindow::handleLoadFinished(bool loaded) {
   }
 }
 
+void MainWindow::injectPreventScrollWheelZoomHelper() {
+  QString js = R"(
+                    (function () {
+                        const SSWZ = function () {
+                            this.keyScrollHandler = function (e) {
+                                if (e.ctrlKey) {
+                                    e.preventDefault();
+                                    return false;
+                                }
+                            }
+                        };
+                        if (window === top) {
+                            const sswz = new SSWZ();
+                            window.addEventListener('wheel', sswz.keyScrollHandler, {
+                                passive: false
+                            });
+                        }
+                    })();
+                )";
+  webEngine->page()->runJavaScript(js);
+}
+
 void MainWindow::injectClassChangeObserver() {
   QString js = R"(
             const observer = new MutationObserver(() => {
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 970458b..98dbf8b 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -135,6 +135,7 @@ private slots:
   void injectFullWidthJavaScript();
   void injectMutationObserver();
   void injectClassChangeObserver();
+  void injectPreventScrollWheelZoomHelper();
 };
 
 #endif // MAINWINDOW_H
diff --git a/src/webview.cpp b/src/webview.cpp
index 15958db..cfd9af9 100644
--- a/src/webview.cpp
+++ b/src/webview.cpp
@@ -48,6 +48,16 @@ WebView::WebView(QWidget *parent, QStringList dictionaries)
           });
 }
 
+void WebView::wheelEvent(QWheelEvent *event) {
+  if (event->modifiers().testFlag(Qt::ControlModifier)) {
+    qDebug() << "skipped ctrl + m_wheel event on webengineview";
+    // do nothing
+  } else {
+    qDebug() << "wheel event on webengine view";
+    QWebEngineView::wheelEvent(event);
+  }
+}
+
 void WebView::contextMenuEvent(QContextMenuEvent *event) {
 
   QMenu *menu = page()->createStandardContextMenu();
diff --git a/src/webview.h b/src/webview.h
index 70b5a6e..81f5f43 100644
--- a/src/webview.h
+++ b/src/webview.h
@@ -3,6 +3,7 @@
 
 #include <QSettings>
 #include <QWebEngineView>
+#include <QKeyEvent>
 
 class WebView : public QWebEngineView {
   Q_OBJECT
@@ -13,6 +14,9 @@ public:
 protected:
   void contextMenuEvent(QContextMenuEvent *event) override;
 
+protected slots:
+  void wheelEvent(QWheelEvent *event);
+
 private:
   QStringList m_dictionaries;
   QSettings settings;