File: rangy-textrange.min.js

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/**
 * Text range module for Rangy.
 * Text-based manipulation and searching of ranges and selections.
 *
 * Features
 *
 * - Ability to move range boundaries by character or word offsets
 * - Customizable word tokenizer
 * - Ignores text nodes inside <script> or <style> elements or those hidden by CSS display and visibility properties
 * - Range findText method to search for text or regex within the page or within a range. Flags for whole words and case
 *   sensitivity
 * - Selection and range save/restore as text offsets within a node
 * - Methods to return visible text within a range or selection
 * - innerText method for elements
 *
 * References
 *
 * https://www.w3.org/Bugs/Public/show_bug.cgi?id=13145
 * http://aryeh.name/spec/innertext/innertext.html
 * http://dvcs.w3.org/hg/editing/raw-file/tip/editing.html
 *
 * Part of Rangy, a cross-browser JavaScript range and selection library
 * https://github.com/timdown/rangy
 *
 * Depends on Rangy core.
 *
 * Copyright 2015, Tim Down
 * Licensed under the MIT license.
 * Version: 1.3.0
 * Build date: 10 May 2015
 */
/*

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

!function(e,t){"function"==typeof define&&define.amd?define(["./rangy-core"],e):"undefined"!=typeof module&&"object"==typeof exports?module.exports=e(require("rangy")):e(t.rangy)}(function(e){return e.createModule("TextRange",["WrappedSelection"],function(e,t){function n(e,t){function n(e,t,n){s.push({start:e,end:t,isWord:n})}for(var r,i,o,a=e.join(""),s=[],c=0;r=t.wordRegex.exec(a);){if(i=r.index,o=i+r[0].length,i>c&&n(c,i,!1),t.includeTrailingSpace)for(;X.test(e[o]);)++o;n(i,o,!0),c=o}return c<e.length&&n(c,e.length,!1),s}function r(e,t){for(var n=e.slice(t.start,t.end),r={isWord:t.isWord,chars:n,toString:function(){return n.join("")}},i=0,o=n.length;o>i;++i)n[i].token=r;return r}function i(e,t,n){for(var i,o=n(e,t),a=[],s=0;i=o[s++];)a.push(r(e,i));return a}function o(e){var t=e||"",n="string"==typeof t?t.split(""):t;return n.sort(function(e,t){return e.charCodeAt(0)-t.charCodeAt(0)}),n.join("").replace(/(.)\1+/g,"$1")}function a(e){var t,n;return e?(t=e.language||Z,n={},K(n,ct[t]||ct[Z]),K(n,e),n):ct[Z]}function s(e,t){var n=z(e,t);return t.hasOwnProperty("wordOptions")&&(n.wordOptions=a(n.wordOptions)),t.hasOwnProperty("characterOptions")&&(n.characterOptions=z(n.characterOptions,at)),n}function c(e,t){var n=pt(e,"display",t),r=e.tagName.toLowerCase();return"block"==n&&ot&&ft.hasOwnProperty(r)?ft[r]:n}function u(e){for(var t=f(e),n=0,r=t.length;r>n;++n)if(1==t[n].nodeType&&"none"==c(t[n]))return!0;return!1}function d(e){var t;return 3==e.nodeType&&(t=e.parentNode)&&"hidden"==pt(t,"visibility")}function l(e){return e&&(1==e.nodeType&&!/^(inline(-block|-table)?|none)$/.test(c(e))||9==e.nodeType||11==e.nodeType)}function h(e){return U.isCharacterDataNode(e)||!/^(area|base|basefont|br|col|frame|hr|img|input|isindex|link|meta|param)$/i.test(e.nodeName)}function p(e){for(var t=[];e.parentNode;)t.unshift(e.parentNode),e=e.parentNode;return t}function f(e){return p(e).concat([e])}function g(e){for(;e&&!e.nextSibling;)e=e.parentNode;return e?e.nextSibling:null}function v(e,t){return!t&&e.hasChildNodes()?e.firstChild:g(e)}function S(e){var t=e.previousSibling;if(t){for(e=t;e.hasChildNodes();)e=e.lastChild;return e}var n=e.parentNode;return n&&1==n.nodeType?n:null}function C(e){if(!e||3!=e.nodeType)return!1;var t=e.data;if(""===t)return!0;var n=e.parentNode;if(!n||1!=n.nodeType)return!1;var r=pt(e.parentNode,"whiteSpace");return/^[\t\n\r ]+$/.test(t)&&/^(normal|nowrap)$/.test(r)||/^[\t\r ]+$/.test(t)&&"pre-line"==r}function N(e){if(""===e.data)return!0;if(!C(e))return!1;var t=e.parentNode;return t?u(e)?!0:!1:!0}function y(e){var t=e.nodeType;return 7==t||8==t||u(e)||/^(script|style)$/i.test(e.nodeName)||d(e)||N(e)}function m(e,t){var n=e.nodeType;return 7==n||8==n||1==n&&"none"==c(e,t)}function x(){this.store={}}function T(e,t,n){return function(r){var i=this.cache;if(i.hasOwnProperty(e))return gt++,i[e];vt++;var o=t.call(this,n?this[n]:this,r);return i[e]=o,o}}function P(e,t){this.node=e,this.session=t,this.cache=new x,this.positions=new x}function b(e,t){this.offset=t,this.nodeWrapper=e,this.node=e.node,this.session=e.session,this.cache=new x}function w(){return"[Position("+U.inspectNode(this.node)+":"+this.offset+")]"}function R(){return B(),Bt=new Ot}function E(){return Bt||R()}function B(){Bt&&Bt.detach(),Bt=null}function O(e,n,r,i){function o(){var e=null;return n?(e=s,c||(s=s.previousVisible(),c=!s||r&&s.equals(r))):c||(e=s=s.nextVisible(),c=!s||r&&s.equals(r)),c&&(s=null),e}r&&(n?y(r.node)&&(r=e.previousVisible()):y(r.node)&&(r=r.nextVisible()));var a,s=e,c=!1,u=!1;return{next:function(){if(u)return u=!1,a;for(var e,t;e=o();)if(t=e.getCharacter(i))return a=e,e;return null},rewind:function(){if(!a)throw t.createError("createCharacterIterator: cannot rewind. 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p=k(e,r,i),f=h?p.previousStartToken:p.nextEndToken;(c=f())&&l>u;)c.isWord&&(++u,d=h?c.chars[0]:c.chars[c.chars.length-1]);break;default:throw new Error("movePositionBy: unit '"+t+"' not implemented")}h?(d=d.previousVisible(),u=-u):d&&d.isLeadingSpace&&!d.isTrailingSpace&&(t==j&&(a=O(e,!1,null,r),s=a.next(),a.dispose()),s&&(d=s.previousVisible()))}return{position:d,unitsMoved:u}}function I(e,t,n,r){var i=e.getRangeBoundaryPosition(t,!0),o=e.getRangeBoundaryPosition(t,!1),a=r?o:i,s=r?i:o;return O(a,!!r,s,n)}function A(e,t,n){for(var r,i=[],o=I(e,t,n);r=o.next();)i.push(r);return o.dispose(),i}function W(t,n,r){var i=e.createRange(t.node);return i.setStartAndEnd(t.node,t.offset,n.node,n.offset),!i.expand("word",{wordOptions:r})}function _(e,t,n,r,i){function o(e,t){var n=g[e].previousVisible(),r=g[t-1],o=!i.wholeWordsOnly||W(n,r,i.wordOptions);return{startPos:n,endPos:r,valid:o}}for(var a,s,c,u,d,l,h=et(i.direction),p=O(e,h,e.session.getRangeBoundaryPosition(r,h),i.characterOptions),f="",g=[],v=null;a=p.next();)if(s=a.character,n||i.caseSensitive||(s=s.toLowerCase()),h?(g.unshift(a),f=s+f):(g.push(a),f+=s),n){if(d=t.exec(f))if(c=d.index,u=c+d[0].length,l){if(!h&&u<f.length||h&&c>0){v=o(c,u);break}}else l=!0}else if(-1!=(c=f.indexOf(t))){v=o(c,c+t.length);break}return l&&(v=o(c,u)),p.dispose(),v}function D(e){return function(){var t=!!Bt,n=E(),r=[n].concat(G.toArray(arguments)),i=e.apply(this,r);return t||B(),i}}function F(e,t){return D(function(n,r,i,o){typeof i==q&&(i=r,r=M),o=s(o,dt);var a=e;t&&(a=i>=0,this.collapse(!a));var c=L(n.getRangeBoundaryPosition(this,a),r,i,o.characterOptions,o.wordOptions),u=c.position;return this[a?"setStart":"setEnd"](u.node,u.offset),c.unitsMoved})}function V(e){return D(function(t,n){n=z(n,at);for(var r,i=I(t,this,n,!e),o=0;(r=i.next())&&Q.test(r.character);)++o;i.dispose();var a=o>0;return a&&this[e?"moveStart":"moveEnd"]("character",e?o:-o,{characterOptions:n}),a})}function $(e){return D(function(t,n){var r=!1;return this.changeEachRange(function(t){r=t[e](n)||r}),r})}var q="undefined",M="character",j="word",U=e.dom,G=e.util,K=G.extend,z=G.createOptions,H=U.getBody,Y=/^[ \t\f\r\n]+$/,J=/^[ \t\f\r]+$/,Q=/^[\t-\r \u0085\u00A0\u1680\u180E\u2000-\u200B\u2028\u2029\u202F\u205F\u3000]+$/,X=/^[\t \u00A0\u1680\u180E\u2000-\u200B\u202F\u205F\u3000]+$/,Z="en",et=e.Selection.isDirectionBackward,tt=!1,nt=!1,rt=!1,it=!0;!function(){var t=U.createTestElement(document,"<p>1 </p><p></p>",!0),n=t.firstChild,r=e.getSelection();r.collapse(n.lastChild,2),r.setStart(n.firstChild,0),tt=1==(""+r).length,t.innerHTML="1 <br />",r.collapse(t,2),r.setStart(t.firstChild,0),nt=1==(""+r).length,t.innerHTML="1 <p>1</p>",r.collapse(t,2),r.setStart(t.firstChild,0),rt=1==(""+r).length,U.removeNode(t),r.removeAllRanges()}();var ot,at={includeBlockContentTrailingSpace:!0,includeSpaceBeforeBr:!0,includeSpaceBeforeBlock:!0,includePreLineTrailingSpace:!0,ignoreCharacters:""},st={includeBlockContentTrailingSpace:!it,includeSpaceBeforeBr:!nt,includeSpaceBeforeBlock:!rt,includePreLineTrailingSpace:!0},ct={en:{wordRegex:/[a-z0-9]+('[a-z0-9]+)*/gi,includeTrailingSpace:!1,tokenizer:n}},ut={caseSensitive:!1,withinRange:null,wholeWordsOnly:!1,wrap:!1,direction:"forward",wordOptions:null,characterOptions:null},dt={wordOptions:null,characterOptions:null},lt={wordOptions:null,characterOptions:null,trim:!1,trimStart:!0,trimEnd:!0},ht={wordOptions:null,characterOptions:null,direction:"forward"},pt=U.getComputedStyleProperty;!function(){var e=document.createElement("table"),t=H(document);t.appendChild(e),ot="block"==pt(e,"display"),t.removeChild(e)}();var ft={table:"table",caption:"table-caption",colgroup:"table-column-group",col:"table-column",thead:"table-header-group",tbody:"table-row-group",tfoot:"table-footer-group",tr:"table-row",td:"table-cell",th:"table-cell"};x.prototype={get:function(e){return this.store.hasOwnProperty(e)?this.store[e]:null},set:function(e,t){return this.store[e]=t}};var gt=0,vt=0,St={getPosition:function(e){var t=this.positions;return t.get(e)||t.set(e,new b(this,e))},toString:function(){return"[NodeWrapper("+U.inspectNode(this.node)+")]"}};P.prototype=St;var Ct="EMPTY",Nt="NON_SPACE",yt="UNCOLLAPSIBLE_SPACE",mt="COLLAPSIBLE_SPACE",xt="TRAILING_SPACE_BEFORE_BLOCK",Tt="TRAILING_SPACE_IN_BLOCK",Pt="TRAILING_SPACE_BEFORE_BR",bt="PRE_LINE_TRAILING_SPACE_BEFORE_LINE_BREAK",wt="TRAILING_LINE_BREAK_AFTER_BR",Rt="INCLUDED_TRAILING_LINE_BREAK_AFTER_BR";K(St,{isCharacterDataNode:T("isCharacterDataNode",U.isCharacterDataNode,"node"),getNodeIndex:T("nodeIndex",U.getNodeIndex,"node"),getLength:T("nodeLength",U.getNodeLength,"node"),containsPositions:T("containsPositions",h,"node"),isWhitespace:T("isWhitespace",C,"node"),isCollapsedWhitespace:T("isCollapsedWhitespace",N,"node"),getComputedDisplay:T("computedDisplay",c,"node"),isCollapsed:T("collapsed",y,"node"),isIgnored:T("ignored",m,"node"),next:T("nextPos",v,"node"),previous:T("previous",S,"node"),getTextNodeInfo:T("textNodeInfo",function(e){var t=null,n=!1,r=pt(e.parentNode,"whiteSpace"),i="pre-line"==r;return 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this.isRenderedBlock(!0)?"\n":""}return""},"node"),getLeadingSpace:T("leadingSpace",function(){switch(this.getComputedDisplay()){case"inline":case"inline-block":case"inline-table":case"none":case"table-column":case"table-column-group":case"table-cell":break;default:return this.isRenderedBlock(!1)?"\n":""}return""},"node")});var Et={character:"",characterType:Ct,isBr:!1,prepopulateChar:function(){var e=this;if(!e.prepopulatedChar){var t=e.node,n=e.offset,r="",i=Ct,o=!1;if(n>0)if(3==t.nodeType){var a=t.data,s=a.charAt(n-1),c=e.nodeWrapper.getTextNodeInfo(),u=c.spaceRegex;c.collapseSpaces?u.test(s)?n>1&&u.test(a.charAt(n-2))||(c.preLine&&"\n"===a.charAt(n)?(r=" ",i=bt):(r=" ",i=mt)):(r=s,i=Nt,o=!0):(r=s,i=yt,o=!0)}else{var d=t.childNodes[n-1];if(d&&1==d.nodeType&&!y(d)&&("br"==d.tagName.toLowerCase()?(r="\n",e.isBr=!0,i=mt,o=!1):e.checkForTrailingSpace=!0),!r){var l=t.childNodes[n];l&&1==l.nodeType&&!y(l)&&(e.checkForLeadingSpace=!0)}}e.prepopulatedChar=!0,e.character=r,e.characterType=i,e.isCharInvariant=o}},isDefinitelyNonEmpty:function(){var e=this.characterType;return e==Nt||e==yt},resolveLeadingAndTrailingSpaces:function(){if(this.prepopulatedChar||this.prepopulateChar(),this.checkForTrailingSpace){var e=this.session.getNodeWrapper(this.node.childNodes[this.offset-1]).getTrailingSpace();e&&(this.isTrailingSpace=!0,this.character=e,this.characterType=mt),this.checkForTrailingSpace=!1}if(this.checkForLeadingSpace){var t=this.session.getNodeWrapper(this.node.childNodes[this.offset]).getLeadingSpace();t&&(this.isLeadingSpace=!0,this.character=t,this.characterType=mt),this.checkForLeadingSpace=!1}},getPrecedingUncollapsedPosition:function(e){for(var t,n=this;n=n.previousVisible();)if(t=n.getCharacter(e),""!==t)return n;return null},getCharacter:function(e){function t(){return p||(d=f.getPrecedingUncollapsedPosition(e),p=!0),d}this.resolveLeadingAndTrailingSpaces();var n,r=this.character,i=o(e.ignoreCharacters),a=""!==r&&i.indexOf(r)>-1;if(this.isCharInvariant)return n=a?"":r;var s=["character",e.includeSpaceBeforeBr,e.includeBlockContentTrailingSpace,e.includePreLineTrailingSpace,i].join("_"),c=this.cache.get(s);if(null!==c)return c;var u,d,l="",h=this.characterType==mt,p=!1,f=this;return h&&(this.type==Rt?l="\n":" "==r&&(!t()||d.isTrailingSpace||"\n"==d.character||" 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