From de4f3018912ee1c0904864bb1e0ba314ecf23e24 Mon Sep 17 00:00:00 2001
From: nanahi <130121847+na-na-hi@users.noreply.github.com>
Date: Sun, 18 Feb 2024 13:57:05 -0500
Subject: [PATCH] input.conf: bind Ctrl+WHEEL_UP/DOWN to video-zoom

There are good reasons to bind Ctrl+WHEEL_UP/WHEEL_DOWN to video-zoom:

- They are ubiquitous and familiar key bindings to represent zooming
operations, which are used in all popular web browsers, document viewers,
and document editors.
- Because WHEEL_UP/WHEEL_DOWN are scaled with high-resolution scrolling
input devices like touchpads, this allows smooth zooming.
- This makes "pinch to zoom" with touchpads and touchscreens work out of
box on Windows, since by default applications receive these key inputs
for pinch gesture.
- It had been considered to bind these keys to window-scale instead.
However, this results in horrible UX as the keybinds work only when the
mouse pointer is over the mpv window, and if the window shrinks during
this operation, the window below mpv now receives these keybinds,
resulting in unwanted zooming for that window, which violates the principle
of least surprise.
---
 etc/input.conf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/etc/input.conf b/etc/input.conf
index cfb97fc7d8..3112d1eea8 100644
--- a/etc/input.conf
+++ b/etc/input.conf
@@ -65,6 +65,8 @@
 #ZOOMIN    add video-zoom   0.1         # zoom in
 #Alt+-     add video-zoom  -0.1         # zoom out
 #ZOOMOUT   add video-zoom  -0.1         # zoom out
+#Ctrl+WHEEL_UP   add video-zoom  0.1    # zoom in
+#Ctrl+WHEEL_DOWN add video-zoom -0.1    # zoom out
 #Alt+BS set video-zoom 0 ; set video-pan-x 0 ; set video-pan-y 0 # reset zoom and pan settings
 #PGUP add chapter 1                     # seek to the next chapter
 #PGDWN add chapter -1                   # seek to the previous chapter