}
function setFocus(name, byId) {
- if(document.location.pathname.indexOf('index.php') != -1) {
- // this is application menu page - set focus on first link
- // var el = document.getElementById('msgbox');
- // TODO find first link after msgbox and set focus
- }
- if(!name) {
+
+ if(!name) { // page load/ajax update
if (_focus)
name = _focus; // last focus set in onfocus handlers
else
if(cur) name = cur.value;
}
}
- if(byId)
+ if(byId || !(el = document.getElementsByName(name)[0]))
el = document.getElementById(name);
- else
- el = document.getElementsByName(name)[0];
if(el && el.focus) {
// The timeout is needed to prevent unpredictable behaviour on IE & Gecko.
setTimeout(tmp, 0);
}
}
+/*
+ Find closest element in neighbourhood and set focus.
+ dir is direction as arrow code.
+*/
+function move_focus(dir, e, neighbours)
+{
+ var p0 = element_pos(e);
+ var t;
+ var l=0;
+ for(var i=0; i<neighbours.length; i++) {
+ var p = element_pos(neighbours[i]);
+ if (neighbours[i].className!='menu_option') continue;
+ if (((dir==40) && (p.y>p0.y)) || (dir==38 && (p.y<p0.y))
+ || ((dir==37) && (p.x<p0.x)) || ((dir==39 && (p.x>p0.x)))) {
+ var l1 = (p.y-p0.y)*(p.y-p0.y)+(p.x-p0.x)*(p.x-p0.x);
+ if ((l1<l) || (l==0)) {
+ l = l1; t = neighbours[i];
+ }
+ }
+ }
+ if (t) {
+ var tmp = function() {t.focus(); if (t.select) t.select();};
+ setTimeout(tmp, 0);
+ }
+ return t;
+}
+
+var __isFireFox = navigator.userAgent.match(/gecko/i);
+//returns the absolute position of some element within document
+function element_pos(e) {
+ var res = new Object();
+ res.x = 0; res.y = 0;
+ if (element !== null) {
+ res.x = e.offsetLeft;
+ res.y = e.offsetTop;
+ var offsetParent = e.offsetParent;
+ var parentNode = e.parentNode;
+
+ while (offsetParent !== null) {
+ res.x += offsetParent.offsetLeft;
+ res.y += offsetParent.offsetTop;
+
+ if (offsetParent != document.body && offsetParent != document.documentElement) {
+ res.x -= offsetParent.scrollLeft;
+ res.y -= offsetParent.scrollTop;
+ }
+ //next lines are necessary to support FireFox problem with offsetParent
+ if (__isFireFox) {
+ while (offsetParent != parentNode && parentNode !== null) {
+ res.x -= parentNode.scrollLeft;
+ res.y -= parentNode.scrollTop;
+
+ parentNode = parentNode.parentNode;
+ }
+ }
+ parentNode = offsetParent.parentNode;
+ offsetParent = offsetParent.offsetParent;
+ }
+ }
+ return res;
+}
\ No newline at end of file