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	index.md (3226B)
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	1 # Link hinting
	2 ## Description
	3 This script allows a user to follow link by pressing Alt+number of the
	4 link. Numbers are never over 5, to ease finger access.
	5 Deploy it into ~/.surf/script.js
	6
	7 *Needs some work on the script to permi buttons and textinput
	8 following...*
	9
	10 ## Usage
	11 Press `Alt`, then the number of the link, and finally `f`to follow the
	12 link, only with left hand.
	13
	14 ## Author
	15 Christian hahn <ch radamanthys de>
	16
	17 [dev mailing list](//lists.suckless.org/dev/1009/5996.html)
	18
	19
	20 ## Code
	21
	22
	23 // easy links for surf
	24 // christian hahn <ch radamanthys de>, sep 2010
	25
	26 testcomplete = function() {
	27 if(document.readyState=="complete") {
	28 run(); return;
	29 }
	30 window.setTimeout("testcomplete()",200);
	31 }
	32 testcomplete();
	33
	34 run=function() {
	35 // config , any css
	36 var modkey = 18; //ctrl=17, alt=18
	37 var cancelkey = 67; // c
	38 var newwinkey = 84; // t
	39 var openkey = 70; // f
	40 var label_style = {"color":"black","fontSize":"10px","ba…
	41 var hl_style = {"backgroundColor":"#E3FF38","fontSize…
	42 var nr_base = 5; // >=10 : normal integer,
	43
	44 // globals
	45 var ankers = document.getElementsByTagName("a");
	46 var labels = new Object();
	47 var ui_visible = false;
	48 var input = "";
	49
	50 // functions
	51 hl=function(t) {
	52 for(var id in labels) {
	53 if (t && id.match("^"+t)==t)
	54 for(var s in hl_style)
	55 labels[id].rep.style[s]=…
	56 else
	57 for(var s in label_style)
	58 labels[id].rep.style[s]=…
	59 }
	60 }
	61 open_link=function(id, new_win) {
	62 try {
	63 var a = labels[input].a;
	64 if(a && !new_win) window.location.href=a…
	65 if(a && new_win) window.open(a.href,a.h…
	66 } catch (e) {}
	67 }
	68 set_ui=function(s) {
	69 var pos = "static";
	70 ui_visible = true;
	71 if(s == "hidden") {
	72 ui_visible = false;
	73 pos = "absolute";
	74 input="";
	75 }
	76 for(var id in labels) {
	77 labels[id].rep.style.visibility=s;
	78 labels[id].rep.style.position=pos;
	79 }
	80 }
	81 base=function(n, b) {
	82 if(b>=10) return n.toString();
	83 var res = new Array();
	84 while(n) {
	85 res.push( (n%b +1).toString() )
	86 n=parseInt(n/b);
	87 }
	88 return res.reverse().join("");
	89 }
	90
	91 // main
	92 // create labels
	93 for (var i=0; i<ankers.length; i++) {
	94 var a = ankers[i];
	95 if (!a.href) continue;
	96 var b = base(i+1,nr_base);
	97 var d = document.createElement("span");
	98 d.style.visibility="hidden";
	99 d.innerHTML=b;
	100 for(var s in label_style)
	101 d.style[s]=label_style[s];
	102 labels[b]={"a":a, "rep":d};
	103 a.parentNode.insertBefore(d, a.nextSibling);
	104 }
	105
	106 // set key handler
	107 window.onkeydown=function(e) {
	108 if (e.keyCode == modkey) {
	109 set_ui("visible");
	110 }
	111 }
	112 window.onkeyup=function(e) {
	113 if (e.keyCode == modkey ) {
	114 open_link(input);
	115 set_ui("hidden");
	116 hl(input);
	117 } else if (ui_visible) {
	118 if(e.keyCode == newwinkey) {
	119 open_link(input, true);
	120 set_ui("hidden");
	121 } else if(e.keyCode == cancelkey)
	122 input="";
	123 else if(e.keyCode == openkey) {
	124 open_link(input);
	125 set_ui("hidden");
	126 } else
	127 input += String.fromCharCode(e.k…
	128 hl(input);
	129 }
	130 }
	131 }
	132
	133