From 5775993a2a5a6b3d84b06e6444751d8d36d29fbc Mon Sep 17 00:00:00 2001
From: Zack Penn <zack@sysdevs.org>
Date: Fri, 30 Jun 2023 17:33:04 -0500
Subject: [PATCH] Ladybird: Add initial support for Ctrl+Scroll to zoom in/out

This commit adds basic functionality to zoom in/out using the
Ctrl+Scroll shortcut.
---
 Ladybird/BrowserWindow.cpp | 10 ++++++++++
 Ladybird/BrowserWindow.h   |  1 +
 2 files changed, 11 insertions(+)

diff --git a/Ladybird/BrowserWindow.cpp b/Ladybird/BrowserWindow.cpp
index d57a35487a..036514cc62 100644
--- a/Ladybird/BrowserWindow.cpp
+++ b/Ladybird/BrowserWindow.cpp
@@ -662,6 +662,16 @@ void BrowserWindow::moveEvent(QMoveEvent* event)
     }
 }
 
+void BrowserWindow::wheelEvent(QWheelEvent* event)
+{
+    if ((event->modifiers() & Qt::ControlModifier) != 0) {
+        if (event->angleDelta().y() > 0)
+            zoom_in();
+        else if (event->angleDelta().y() < 0)
+            zoom_out();
+    }
+}
+
 bool BrowserWindow::eventFilter(QObject* obj, QEvent* event)
 {
     if (event->type() == QEvent::MouseButtonRelease) {
diff --git a/Ladybird/BrowserWindow.h b/Ladybird/BrowserWindow.h
index fd2197357e..8a152e8755 100644
--- a/Ladybird/BrowserWindow.h
+++ b/Ladybird/BrowserWindow.h
@@ -92,6 +92,7 @@ protected:
 private:
     virtual void resizeEvent(QResizeEvent*) override;
     virtual void moveEvent(QMoveEvent*) override;
+    virtual void wheelEvent(QWheelEvent*) override;
 
     void debug_request(DeprecatedString const& request, DeprecatedString const& argument = "");