js/jquery.textinputs.js

   1 /*
   2  Rangy Text Inputs, a cross-browser textarea and text input library plug-in for jQuery.
   3
   4  Part of Rangy, a cross-browser JavaScript range and selection library
   5  http://code.google.com/p/rangy/
   6
   7  Depends on jQuery 1.0 or later.
   8
   9  Copyright 2010, Tim Down
  10  Licensed under the MIT license.
  11  Version: 0.1.205
  12  Build date: 5 November 2010
  13 */
  14 (function(n){function o(e,g){var a=typeof e[g];return a==="function"||!!(a=="object"&&e[g])||a=="unknown"}function p(e,g,a){if(g<0)g+=e.value.length;if(typeof a=="undefined")a=g;if(a<0)a+=e.value.length;return{start:g,end:a}}function k(){return typeof document.body=="object"&&document.body?document.body:document.getElementsByTagName("body")[0]}var i,h,q,l,r,s,t,u,m;n(document).ready(function(){function e(a,b){return function(){var c=this.jquery?this[0]:this,d=c.nodeName.toLowerCase();if(c.nodeType==
  15 1&&(d=="textarea"||d=="input"&&c.type=="text")){c=[c].concat(Array.prototype.slice.call(arguments));c=a.apply(this,c);if(!b)return c}if(b)return this}}var g=document.createElement("textarea");k().appendChild(g);if(typeof g.selectionStart!="undefined"&&typeof g.selectionEnd!="undefined"){i=function(a){return{start:a.selectionStart,end:a.selectionEnd,length:a.selectionEnd-a.selectionStart,text:a.value.slice(a.selectionStart,a.selectionEnd)}};h=function(a,b,c){b=p(a,b,c);a.selectionStart=b.start;a.selectionEnd=
  16 b.end};m=function(a,b){if(b)a.selectionEnd=a.selectionStart;else a.selectionStart=a.selectionEnd}}else if(o(g,"createTextRange")&&typeof document.selection=="object"&&document.selection&&o(document.selection,"createRange")){i=function(a){var b=0,c=0,d,f,j;if((j=document.selection.createRange())&&j.parentElement()==a){f=a.value.length;d=a.value.replace(/\r\n/g,"\n");c=a.createTextRange();c.moveToBookmark(j.getBookmark());j=a.createTextRange();j.collapse(false);if(c.compareEndPoints("StartToEnd",j)>
  17 -1)b=c=f;else{b=-c.moveStart("character",-f);b+=d.slice(0,b).split("\n").length-1;if(c.compareEndPoints("EndToEnd",j)>-1)c=f;else{c=-c.moveEnd("character",-f);c+=d.slice(0,c).split("\n").length-1}}}return{start:b,end:c,length:c-b,text:a.value.slice(b,c)}};h=function(a,b,c){b=p(a,b,c);c=a.createTextRange();var d=b.start-(a.value.slice(0,b.start).split("\r\n").length-1);c.collapse(true);if(b.start==b.end)c.move("character",d);else{c.moveEnd("character",b.end-(a.value.slice(0,b.end).split("\r\n").length-
  18 1));c.moveStart("character",d)}c.select()};m=function(a,b){var c=document.selection.createRange();c.collapse(b);c.select()}}else{k().removeChild(g);window.console&&window.console.log&&window.console.log("TextInputs module for Rangy not supported in your browser. Reason: No means of finding text input caret position");return}k().removeChild(g);l=function(a,b,c,d){var f;if(b!=c){f=a.value;a.value=f.slice(0,b)+f.slice(c)}d&&h(a,b,b)};q=function(a){var b=i(a);l(a,b.start,b.end,true)};u=function(a){var b=
  19 i(a),c;if(b.start!=b.end){c=a.value;a.value=c.slice(0,b.start)+c.slice(b.end)}h(a,b.start,b.start);return b.text};r=function(a,b,c,d){var f=a.value;a.value=f.slice(0,c)+b+f.slice(c);if(d){b=c+b.length;h(a,b,b)}};s=function(a,b){var c=i(a),d=a.value;a.value=d.slice(0,c.start)+b+d.slice(c.end);c=c.start+b.length;h(a,c,c)};t=function(a,b,c){var d=i(a),f=a.value;a.value=f.slice(0,d.start)+b+d.text+c+f.slice(d.end);b=d.start+b.length;h(a,b,b+d.length)};n.fn.extend({getSelection:e(i,false),setSelection:e(h,
  20 true),collapseSelection:e(m,true),deleteSelectedText:e(q,true),deleteText:e(l,true),extractSelectedText:e(u,false),insertText:e(r,true),replaceSelectedText:e(s,true),surroundSelectedText:e(t,true)})})})(jQuery);