Bookmarklet: Vim bindings for Piazza [draft]

piazza-vim-bindings.js

// jj: select post below
// kk: select post above
// checks to see if you're not typing/focused on any element. click outside to activate
javascript:var previous; var arrowKey = function(event) { if ($(document.activeElement)[0].tagName === "BODY") { 	if (event.keyCode == 74 && previous == 74) {  		$('.feed_item.selected').next().click(); 		previous = null; 	} 	if (event.keyCode == 75 && previous == 75) {  		$('.feed_item.selected').prev().click(); 		previous = null; 	} else { 		previous = event.keyCode; 	} } }; $(document).on('keydown', arrowKey);