Mouse Reference

Mouse Usage in a Layout Box

Button	Event	Behaviour
Left	Single click	Make the window slightly larger
Left	Drag vertically	Change the height of the window if there are other windows in the column
Left	Drag horizontally	Move the window to another column
Right	Single click	Minimize other windows
Middle	Single click	Hide other windows

Mouse Usage in a Scrollbar

Button	Event	Behaviour
Left	Single click	Scroll upwards. The amount scrolled is relative to the vertical position of the click within the scrollbar. Near the bottom scrolls an entire page, while near the top scolls a line.
Right	Single click	Scroll downwards
Middle	Drag vertically	Scroll to that relative position in the file

Mouse usage in a Window Body or Tag

Unchorded

Button	Event	Behaviour
Left	Single click	Set cursor position and remove other cursors and selections
Left	Alt + Single click	Create an additional cursor
Left	Double click	Select the string of alphanumeric characters under the mouse
Left	Triple click	Select the space-separated word under the mouse
Left	Quad click	Select the current line
Left	Double click on the first character of a line	Select current line
Left	Double click on a delimiting character¹	select text enclosed by the brackets, excluding the brackets²
Left	Triple click on a delimiting character¹	select text enclosed by the brackets, including the brackets²
Left	Drag	Select text and remove other selections
Left	Alt + Drag	Create an additional selection
Right	Single click	Search for word or selection under cursor and make a new selection. If word or selection is surrounded by / then it is treated as a regular expression.
Right	Alt + Single click	Acquire the word or selection under the cursor³
Right	Alt + Ctrl + Single click	Like Alt + Single click, but if a new window would be opened for a path, instead load the path in the current window
Middle	Single click	Execute the word or selection under the mouse. This can be an Anvil command (New, Del, Paste, etc) or a shell command
Middle	Select and release	Execute the selected command

[1] A delimiting character refers to an opening or closing bracket, or an opening or closing quote character. Explicitly, one of {, [, (, < or its matching closer, or one of ", , or ◊.

[2] For quotes, if it is ambiguous where the matching quote character would be because there is a candidate match both to the left and the right, then no action is taken.

[3] Acquire means the following. First, if the word or selection matches a plumbing rule, execute that plumbing rule. If there is no matching plumbing rule, then if the word or selection is a file or directory path and there is already a window open with that path as the filename portion of it's tag, change focus to that window and make it visible. If there is not already a window open for that path, open one. Finally, if a plumbing rule is not executed and the path ends in :N, #C or !X then go to line N, character C or regex X in the file.

Chorded

Chorded mouse usage refers to clicking and holding one mouse button, and then while that button is held, clicking and releasing another button or keyboard key. In the table below, "Primary Button" refers to the first button that must be pressed and held, and "Secondary Button / Key" refers to the next button or keyboard key that must be pressed and released.

Primary Button	Secondary Button / Key	Behaviour
Left	Middle	Cut selected text to clipboard
Left	Right	Paste text from clipboard
Middle	Left	Execute command with the text of the last created selection in a window body as the first argument
Left	F1-F12	Create a mark at primary cursor position who's name is the function key.