mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-22 00:00:59 +02:00
2149728227
- search results are retrieved from rss/xml, no other servlet needed - added double accordion sidebar menus git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4718 6c8d7289-2bf4-0310-a012-ef5d649a1542
201 lines
5.0 KiB
JavaScript
201 lines
5.0 KiB
JavaScript
/*
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* jQuery Keyboard Navigation Plugin - Current
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* http://www.amountaintop.com/projects/keynav/
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*
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* To use, download this file to your server, save as keynav.js,
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* and add this HTML into the <head>...</head> of your web page:
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* <script type="text/javascript" src="keynav.js"></script>
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*
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* Copyright (c) 2006 Mike Hostetler <http://www.amountaintop.com/>
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* Licensed under the MIT License:
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* http://www.opensource.org/licenses/mit-license.php
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*/
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$.keynav = new Object();
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$.fn.keynav = function (onClass,offClass) {
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//Initialization
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var kn = $.keynav;
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if(!kn.init) {
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kn.el = new Array();
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$(document).keydown(function(e) {
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var key = e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0;
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switch(key) {
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case 37:
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$.keynav.goLeft();
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break;
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case 38:
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$.keynav.goUp();
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break;
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case 39:
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$.keynav.goRight();
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break;
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case 40:
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$.keynav.goDown();
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break;
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case 13:
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$.keynav.activate();
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break;
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}
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});
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kn.init = true;
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}
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return this.each(function() {
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$.keynav.reg(this,onClass,offClass);
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});
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}
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$.fn.keynav_sethover = function(onClass,offClass) {
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return this.each(function() {
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this.onClass = onClass;
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this.offClass = offClass;
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});
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}
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$.keynav.reset = function() {
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var kn = $.keynav;
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kn.el = new Array();
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}
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$.keynav.reg = function(e,onClass,offClass) {
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var kn = $.keynav;
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e.pos = $.keynav.getPos(e);
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e.onClass = onClass;
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e.offClass = offClass;
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e.onmouseover = function (e) { $.keynav.setActive(this); };
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kn.el.push(e);
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}
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$.keynav.setActive = function(e) {
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var kn = $.keynav;
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var cur = $.keynav.getCurrent();
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$(cur).trigger('blur');
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for(var i=0;i<kn.el.length;i++) {
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var tmp = kn.el[i];
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$(tmp).removeClass().addClass(tmp.offClass);
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}
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$(e).removeClass().addClass(e.onClass);
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$(e).trigger('focus');
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kn.currentEl = e;
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}
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$.keynav.getCurrent = function () {
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var kn = $.keynav;
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if(kn.currentEl) {
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var cur = kn.currentEl;
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}
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else {
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var cur = kn.el[0];
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}
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return cur;
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}
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$.keynav.quad = function(cur,fQuad) {
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var kn = $.keynav;
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var quad = Array();
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for(i=0;i<kn.el.length;i++) {
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var el = kn.el[i];
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if(cur == el) continue;
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if(fQuad((cur.pos.cx - el.pos.cx),(cur.pos.cy - el.pos.cy)))
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quad.push(el);
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}
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return quad;
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}
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$.keynav.activateClosest = function(cur,quad) {
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var closest;
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var od = 1000000;
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var nd = 0;
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var found = false;
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for(i=0;i<quad.length;i++) {
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var e = quad[i];
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nd = Math.sqrt(Math.pow(cur.pos.cx-e.pos.cx,2)+Math.pow(cur.pos.cy-e.pos.cy,2));
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if(nd < od) {
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closest = e;
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od = nd;
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found = true;
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}
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}
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if(found)
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$.keynav.setActive(closest);
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}
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$.keynav.goLeft = function () {
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var cur = $.keynav.getCurrent();
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var quad = $.keynav.quad(cur,function (dx,dy) {
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if((dy >= 0) && (Math.abs(dx) - dy) <= 0)
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return true;
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else
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return false;
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});
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$.keynav.activateClosest(cur,quad);
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}
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$.keynav.goRight = function () {
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var cur = $.keynav.getCurrent();
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var quad = $.keynav.quad(cur,function (dx,dy) {
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if((dy <= 0) && (Math.abs(dx) + dy) <= 0)
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return true;
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else
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return false;
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});
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$.keynav.activateClosest(cur,quad);
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}
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$.keynav.goUp = function () {
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var cur = $.keynav.getCurrent();
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var quad = $.keynav.quad(cur,function (dx,dy) {
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if((dx >= 0) && (Math.abs(dy) - dx) <= 0)
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return true;
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else
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return false;
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});
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$.keynav.activateClosest(cur,quad);
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}
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$.keynav.goDown = function () {
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var cur = $.keynav.getCurrent();
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var quad = $.keynav.quad(cur,function (dx,dy) {
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if((dx <= 0) && (Math.abs(dy) + dx) <= 0)
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return true;
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else
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return false;
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});
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$.keynav.activateClosest(cur,quad);
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}
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$.keynav.activate = function () {
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var kn = $.keynav;
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$(kn.currentEl).trigger('click');
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}
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/**
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* This function was taken from Stefan's exellent interface plugin
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* http://www.eyecon.ro/interface/
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*
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* I included it in this library's namespace because the functions aren't
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* quite the same.
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*/
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$.keynav.getPos = function (e)
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{
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var l = 0;
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var t = 0;
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var w = $.intval($.css(e,'width'));
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var h = $.intval($.css(e,'height'));
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while (e.offsetParent){
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l += e.offsetLeft + (e.currentStyle?$.intval(e.currentStyle.borderLeftWidth):0);
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t += e.offsetTop + (e.currentStyle?$.intval(e.currentStyle.borderTopWidth):0);
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e = e.offsetParent;
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}
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l += e.offsetLeft + (e.currentStyle?$.intval(e.currentStyle.borderLeftWidth):0);
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t += e.offsetTop + (e.currentStyle?$.intval(e.currentStyle.borderTopWidth):0);
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var cx = Math.round(t+(h/2));
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var cy = Math.round(l+(w/2));
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return {x:l, y:t, w:w, h:h, cx:cx, cy:cy};
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};
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/**
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* This function was taken from Stefan's exellent interface plugin
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* http://www.eyecon.ro/interface/
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*/
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$.intval = function (v)
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{
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v = parseInt(v);
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return isNaN(v) ? 0 : v;
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};
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