Add a context menu when right-clicking a file in the shader editor

[viktor-ferenczi]

Godot version

4.0 stable, 4.1 master

System information

Win 11, Vulcan

Issue description

I cannot find any Close or Close All menu items and right clicking on the shader's name in the open shaders list does not do anything, no context menu appears.

Pressing the "Script Editor / Close" shortcut (Ctrl-W) does not do anything on shader editors either. There is no separate shortcut for shader editors.

Right now one must restart Godot to close all shader windows before deleting or renaming them.

Related: #72595

Steps to reproduce

1. Open any .gdshader or .gdshaderinc
2. Try to close the shader editor

Minimal reproduction project

Any project with shader code.

[bitsawer]

You can select "File -> Close File" to close the currently open shader file and press the "Shader Editor" button to toggle the whole editor visibility (but I think you know this one). I agree that the shader editor should receive some usability improvements, including keyboard shortcuts and maybe mouse right-click context menu for the shader listing etc. Also slightly usability related: godotengine/godot-proposals#6355

[KoBeWi]

You can also close using middle click.

[viktor-ferenczi]

Thank you. I was blind. Most likely because the File menu is separate from the rest of menus over the editor, which is logical, but unusual.