a plugin for ttrss

init.js

function getAdjacentArticleId() {
  var next_id, prev_id
	var rows = getVisibleArticleIds();
	var c_id = ""+getActiveArticleId();

	if (!c_id) {
		next_id = rows[0];
		prev_id = rows[rows.length-1]
	} else {
		c_index = rows.indexOf(c_id);
		if(c_index < rows.length - 1) 
			next_id = rows[c_index + 1];
		else next_id = rows[0];
		if(c_index > 0) 
			prev_id = rows[c_index - 1]
		else prev_id = rows[rows.length -1];
	}
	return [prev_id, next_id];
}

function focusPost(direction) {
	toggleSelected(getActiveArticleId());
	var adjacent = getAdjacentArticleId();
	var id = direction == "next" ? adjacent[1] : adjacent[0];
	setActiveArticleId(id);
	toggleSelected(id);
}

$(document).observe("dom:loaded", function () {
		hotkey_actions["focus_next_article"] = function() {
				focusPost("next");
		};
		hotkey_actions["focus_prev_article"] = function() {
				focusPost("prev");
		};
});

init.php

<?php
class PhMongeau_Keys extends Plugin {

  private $link;
	private $host;

	function about() {
		return array(1.0,
			"Swap j and k hotkeys (for vi brethren)",
			"phmongeau");
	}

	function init($host) {
		$this->link = $host->get_link();
		$this->host = $host;

		$host->add_hook($host::HOOK_HOTKEY_MAP, $this);
	}

	function get_js() {
		return file_get_contents(dirname(__FILE__) . "/init.js");
	}

	function hook_hotkey_map($hotkeys) {

		$hotkeys["n"] = "focus_next_article";
		$hotkeys["p"] = "focus_prev_article";
		$hotkeys["j"] = "next_article_noscroll";
		$hotkeys["k"] = "prev_article_noscroll";
		$hotkeys["o"] = "collapse_article";
		$hotkeys["*n"] = "next_feed";
		$hotkeys["*p"] = "prev_feed";
		$hotkeys["v"] = "open_in_new_window";
		$hotkeys["r"] = "feed_refresh";

		return $hotkeys;

	}
}
?>