Add run_binding function to bindings.h.
> Runs the given binding and handles parse errors. Returns a
> CommandResult for running the binding's command. Caller should render
> tree if needs_tree_render is true. Free with command_result_free().
Change the primary binding accessor to `get_binding_from_xcb_event`.
This function gets a binding from a generic xcb event of type KeyPress,
KeyRelease, ButtonPress, or ButtonRelease by determining the input type
(keyboard or mouse), the modifiers pressed from the filtered event
`state`, managing the proper fall back in case mode switch is enabled,
and finally querying the bindings for a binding that matches the event.
The logic of querying keyboard bindings is not intended to be altered by
this change.
The general accessor has been slightly modified to work with mouse
bindings and made private because it is only used in bindings.c
Rename `get_binding` to `get_keyboard_binding` and ensure that this
function only accesses bindings of type B_KEYBOARD. Other types of
bindings (e.g. mouse bindings) will be accessed by a different function.
Create files bindings.[ch] to contain functions for configuring,
finding, and running bindings.
Use the new function `configure_binding` for binding configuration. This
function adds a binding from config parameters.
Export the function `modifiers_from_str` from config_directives.h.
This change is made in preparation for the new bindmouse functionality.
