Automatically support shift-override mouse events

[Screwtapello]

I'm currently using Alacritty 63a40df on Debian Testing, with i3 window-manager on X11.

My alacritty.yml contains the default mouse-bindings:

mouse_bindings:
  - { mouse: Middle, action: PasteSelection }

When I'm running a terminal app without mouse support, like bash, a left-click is handled by the terminal and a shift-left click is redundant, but works too.

When I'm running a terminal app with mouse support, like tmux, a left-click is handled by the application and a shift-left click is handled by the terminal, just as I'd expect.

When I'm running a terminal app without mouse support, a middle-click pastes the selection (as configured), and a shift-middle-click does nothing.

When I'm running a terminal app with mouse support, a middle-click is handled by the application and a shift-middle-click still does nothing.

I'm used to always shift-middle-click pasting so I don't have to care whether the running application has mouse support, but this habit brings sadness with Alacritty.

Since mouse-bindings don't allow modifiers anyway, it would be great if Alacritty allowed all mouse bindings to behave like left-click:

• outside of mouse-reporting mode, clicking does the normal action and shift-clicking does too
• inside mouse-reporting mode, clicking is reported to the app and shift-clicking does the normal action

[chrisduerr]

Hey, this is a known issue and a duplicate of #1298. Unfortunately it's a semi-recent regression introduced in #1218. However there already is an open PR which should fix this: #1300.

Regarding the other thing you've mentioned about mouse modifiers, they actually are supported now. However it looks like I forgot to update the configuration file to remove the notice that they are not. I'll spin up a PR to do this later, thanks for the notice.