11 lines
46 KiB
JavaScript
11 lines
46 KiB
JavaScript
/**
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* Rangy, a cross-browser JavaScript range and selection library
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* https://github.com/timdown/rangy
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*
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* Copyright 2015, Tim Down
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* Licensed under the MIT license.
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* Version: 1.3.0
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* Build date: 10 May 2015
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*/
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t=e.nextSibling;t&&t.nodeType==e.nodeType&&(o=e,i=e.length,e.appendData(t.data),X(t))},s=function(e){var r=e.previousSibling;if(r&&r.nodeType==e.nodeType){t=e;var a=e.length;if(n=r.length,e.insertData(0,r.data),X(r),t==o)i+=n,o=t;else if(o==e.parentNode){var s=W(e);i==s?(o=e,i=a):i>s&&i--}}},c=!0;if(L(o))i==o.length?a(o):0==i&&(e=o.previousSibling,e&&e.nodeType==o.nodeType&&(i=e.length,t==o&&(c=!1),e.appendData(o.data),X(o),o=e));else{if(i>0){var d=o.childNodes[i-1];d&&L(d)&&a(d)}c=!this.collapsed}if(c){if(L(t))0==n?s(t):n==t.length&&(e=t.nextSibling,e&&e.nodeType==t.nodeType&&(o==e&&(o=t,i+=t.length),t.appendData(e.data),X(e)));else if(n<t.childNodes.length){var f=t.childNodes[n];f&&L(f)&&s(f)}}else t=o,n=i;r(this,t,n,o,i)},collapseToPoint:function(e,t){m(e,!0),v(e,t),this.setStartAndEnd(e,t)}}),D(n)}function b(e){e.collapsed=e.startContainer===e.endContainer&&e.startOffset===e.endOffset,e.commonAncestorContainer=e.collapsed?e.startContainer:B.getCommonAncestor(e.startContainer,e.endContainer)}function P(e,t,n,r,o){e.startContainer=t,e.startOffset=n,e.endContainer=r,e.endOffset=o,e.document=B.getDocument(t),b(e)}function I(e){this.startContainer=e,this.startOffset=0,this.endContainer=e,this.endOffset=0,this.document=e,b(this)}var B=e.dom,H=e.util,M=B.DomPosition,k=e.DOMException,L=B.isCharacterDataNode,W=B.getNodeIndex,F=B.isOrIsAncestorOf,j=B.getDocument,z=B.comparePoints,U=B.splitDataNode,V=B.getClosestAncestorIn,q=B.getNodeLength,Y=B.arrayContains,Q=B.getRootContainer,G=e.features.crashyTextNodes,X=B.removeNode;g.prototype={_current:null,_next:null,_first:null,_last:null,isSingleCharacterDataNode:!1,reset:function(){this._current=null,this._next=this._first},hasNext:function(){return!!this._next},next:function(){var e=this._current=this._next;return e&&(this._next=e!==this._last?e.nextSibling:null,L(e)&&this.clonePartiallySelectedTextNodes&&(e===this.ec&&(e=e.cloneNode(!0)).deleteData(this.eo,e.length-this.eo),this._current===this.sc&&(e=e.cloneNode(!0)).deleteData(0,this.so))),e},remove:function(){var e,t,n=this._current;!L(n)||n!==this.sc&&n!==this.ec?n.parentNode&&X(n):(e=n===this.sc?this.so:0,t=n===this.ec?this.eo:n.length,e!=t&&n.deleteData(e,t-e))},isPartiallySelectedSubtree:function(){var e=this._current;return t(e,this.range)},getSubtreeIterator:function(){var e;if(this.isSingleCharacterDataNode)e=this.range.cloneRange(),e.collapse(!1);else{e=new I(n(this.range));var t=this._current,r=t,o=0,i=t,a=q(t);F(t,this.sc)&&(r=this.sc,o=this.so),F(t,this.ec)&&(i=this.ec,a=this.eo),P(e,r,o,i,a)}return new g(e,this.clonePartiallySelectedTextNodes)},detach:function(){this.range=this._current=this._next=this._first=this._last=this.sc=this.so=this.ec=this.eo=null}};var Z=[1,3,4,5,7,8,10],$=[2,9,11],J=[5,6,10,12],K=[1,3,4,5,7,8,10,11],et=[1,3,4,5,7,8],tt=p([9,11]),nt=p(J),rt=p([6,10,12]),ot=document.createElement("style"),it=!1;try{ot.innerHTML="<b>x</b>",it=3==ot.firstChild.nodeType}catch(at){}e.features.htmlParsingConforms=it;var st=it?function(e){var t=this.startContainer,n=j(t);if(!t)throw new k("INVALID_STATE_ERR");var r=null;return 1==t.nodeType?r=t:L(t)&&(r=B.parentElement(t)),r=null===r||"HTML"==r.nodeName&&B.isHtmlNamespace(j(r).documentElement)&&B.isHtmlNamespace(r)?n.createElement("body"):r.cloneNode(!1),r.innerHTML=e,B.fragmentFromNodeChildren(r)}:function(e){var t=n(this),r=t.createElement("body");return r.innerHTML=e,B.fragmentFromNodeChildren(r)},ct=["startContainer","startOffset","endContainer","endOffset","collapsed","commonAncestorContainer"],dt=0,ft=1,ut=2,lt=3,ht=0,gt=1,pt=2,mt=3;H.extend(e.rangePrototype,{compareBoundaryPoints:function(e,t){w(this),C(this.startContainer,t.startContainer);var n,r,o,i,a=e==lt||e==dt?"start":"end",s=e==ft||e==dt?"start":"end";return n=this[a+"Container"],r=this[a+"Offset"],o=t[s+"Container"],i=t[s+"Offset"],z(n,r,o,i)},insertNode:function(e){if(w(this),R(e,K),N(this.startContainer),F(e,this.startContainer))throw new k("HIERARCHY_REQUEST_ERR");var t=a(e,this.startContainer,this.startOffset);this.setStartBefore(t)},cloneContents:function(){w(this);var e,t;if(this.collapsed)return n(this).createDocumentFragment();if(this.startContainer===this.endContainer&&L(this.startContainer))return e=this.startContainer.cloneNode(!0),e.data=e.data.slice(this.startOffset,this.endOffset),t=n(this).createDocumentFragment(),t.appendChild(e),t;var r=new g(this,!0);return e=c(r),r.detach(),e},canSurroundContents:function(){w(this),N(this.startContainer),N(this.endContainer);var e=new g(this,!0),n=e._first&&t(e._first,this)||e._last&&t(e._last,this);return e.detach(),!n},surroundContents:function(e){if(R(e,et),!this.canSurroundContents())throw new k("INVALID_STATE_ERR");var t=this.extractContents();if(e.hasChildNodes())for(;e.lastChild;)e.removeChild(e.lastChild);a(e,this.startContainer,this.startOffset),e.appendChild(t),this.selectNode(e)},cloneRange:function(){w(this);for(var e,t=new I(n(this)),r=ct.length;r--;)e=ct[r],t[e]=this[e];return t},toString:function(){w(this);var e=this.startContainer;if(e===this.endContainer&&L(e))return 3==e.nodeType||4==e.nodeType?e.data.slice(this.startOffset,this.endOffset):"";var t=[],n=new g(this,!0);return d(n,function(e){(3==e.nodeType||4==e.nodeType)&&t.push(e.data)}),n.detach(),t.join("")},compareNode:function(e){w(this);var t=e.parentNode,n=W(e);if(!t)throw new k("NOT_FOUND_ERR");var r=this.comparePoint(t,n),o=this.comparePoint(t,n+1);return 0>r?o>0?pt:ht:o>0?gt:mt},comparePoint:function(e,t){return w(this),E(e,"HIERARCHY_REQUEST_ERR"),C(e,this.startContainer),z(e,t,this.startContainer,this.startOffset)<0?-1:z(e,t,this.endContainer,this.endOffset)>0?1:0},createContextualFragment:st,toHtml:function(){return O(this)},intersectsNode:function(e,t){if(w(this),Q(e)!=r(this))return!1;var n=e.parentNode,o=W(e);if(!n)return!0;var i=z(n,o,this.endContainer,this.endOffset),a=z(n,o+1,this.startContainer,this.startOffset);return t?0>=i&&a>=0:0>i&&a>0},isPointInRange:function(e,t){return w(this),E(e,"HIERARCHY_REQUEST_ERR"),C(e,this.startContainer),z(e,t,this.startContainer,this.startOffset)>=0&&z(e,t,this.endContainer,this.endOffset)<=0},intersectsRange:function(e){return s(this,e,!1)},intersectsOrTouchesRange:function(e){return s(this,e,!0)},intersection:function(e){if(this.intersectsRange(e)){var t=z(this.startContainer,this.startOffset,e.startContainer,e.startOffset),n=z(this.endContainer,this.endOffset,e.endContainer,e.endOffset),r=this.cloneRange();return-1==t&&r.setStart(e.startContainer,e.startOffset),1==n&&r.setEnd(e.endContainer,e.endOffset),r}return null},union:function(e){if(this.intersectsOrTouchesRange(e)){var t=this.cloneRange();return-1==z(e.startContainer,e.startOffset,this.startContainer,this.startOffset)&&t.setStart(e.startContainer,e.startOffset),1==z(e.endContainer,e.endOffset,this.endContainer,this.endOffset)&&t.setEnd(e.endContainer,e.endOffset),t}throw new k("Ranges do not intersect")},containsNode:function(e,t){return t?this.intersectsNode(e,!1):this.compareNode(e)==mt},containsNodeContents:function(e){return this.comparePoint(e,0)>=0&&this.comparePoint(e,q(e))<=0},containsRange:function(e){var t=this.intersection(e);return null!==t&&e.equals(t)},containsNodeText:function(e){var t=this.cloneRange();t.selectNode(e);var n=t.getNodes([3]);if(n.length>0){t.setStart(n[0],0);var r=n.pop();return t.setEnd(r,r.length),this.containsRange(t)}return this.containsNodeContents(e)},getNodes:function(e,t){return w(this),l(this,e,t)},getDocument:function(){return n(this)},collapseBefore:function(e){this.setEndBefore(e),this.collapse(!1)},collapseAfter:function(e){this.setStartAfter(e),this.collapse(!0)},getBookmark:function(t){var r=n(this),o=e.createRange(r);t=t||B.getBody(r),o.selectNodeContents(t);var i=this.intersection(o),a=0,s=0;return i&&(o.setEnd(i.startContainer,i.startOffset),a=o.toString().length,s=a+i.toString().length),{start:a,end:s,containerNode:t}},moveToBookmark:function(e){var t=e.containerNode,n=0;this.setStart(t,0),this.collapse(!0);for(var r,o,i,a,s=[t],c=!1,d=!1;!d&&(r=s.pop());)if(3==r.nodeType)o=n+r.length,!c&&e.start>=n&&e.start<=o&&(this.setStart(r,e.start-n),c=!0),c&&e.end>=n&&e.end<=o&&(this.setEnd(r,e.end-n),d=!0),n=o;else for(a=r.childNodes,i=a.length;i--;)s.push(a[i])},getName:function(){return"DomRange"},equals:function(e){return I.rangesEqual(this,e)},isValid:function(){return y(this)},inspect:function(){return h(this)},detach:function(){}}),x(I,P),H.extend(I,{rangeProperties:ct,RangeIterator:g,copyComparisonConstants:D,createPrototypeRange:x,inspect:h,toHtml:O,getRangeDocument:n,rangesEqual:function(e,t){return e.startContainer===t.startContainer&&e.startOffset===t.startOffset&&e.endContainer===t.endContainer&&e.endOffset===t.endOffset}}),e.DomRange=I}),I.createCoreModule("WrappedRange",["DomRange"],function(e,t){var n,r,o=e.dom,i=e.util,a=o.DomPosition,s=e.DomRange,c=o.getBody,d=o.getContentDocument,f=o.isCharacterDataNode;if(e.features.implementsDomRange&&!function(){function r(e){for(var t,n=l.length;n--;)t=l[n],e[t]=e.nativeRange[t];e.collapsed=e.startContainer===e.endContainer&&e.startOffset===e.endOffset}function a(e,t,n,r,o){var i=e.startContainer!==t||e.startOffset!=n,a=e.endContainer!==r||e.endOffset!=o,s=!e.equals(e.nativeRange);(i||a||s)&&(e.setEnd(r,o),e.setStart(t,n))}var f,u,l=s.rangeProperties;n=function(e){if(!e)throw t.createError("WrappedRange: Range must be specified");this.nativeRange=e,r(this)},s.createPrototypeRange(n,a),f=n.prototype,f.selectNode=function(e){this.nativeRange.selectNode(e),r(this)},f.cloneContents=function(){return this.nativeRange.cloneContents()},f.surroundContents=function(e){this.nativeRange.surroundContents(e),r(this)},f.collapse=function(e){this.nativeRange.collapse(e),r(this)},f.cloneRange=function(){return new n(this.nativeRange.cloneRange())},f.refresh=function(){r(this)},f.toString=function(){return this.nativeRange.toString()};var h=document.createTextNode("test");c(document).appendChild(h);var g=document.createRange();g.setStart(h,0),g.setEnd(h,0);try{g.setStart(h,1),f.setStart=function(e,t){this.nativeRange.setStart(e,t),r(this)},f.setEnd=function(e,t){this.nativeRange.setEnd(e,t),r(this)},u=function(e){return function(t){this.nativeRange[e](t),r(this)}}}catch(p){f.setStart=function(e,t){try{this.nativeRange.setStart(e,t)}catch(n){this.nativeRange.setEnd(e,t),this.nativeRange.setStart(e,t)}r(this)},f.setEnd=function(e,t){try{this.nativeRange.setEnd(e,t)}catch(n){this.nativeRange.setStart(e,t),this.nativeRange.setEnd(e,t)}r(this)},u=function(e,t){return function(n){try{this.nativeRange[e](n)}catch(o){this.nativeRange[t](n),this.nativeRange[e](n)}r(this)}}}f.setStartBefore=u("setStartBefore","setEndBefore"),f.setStartAfter=u("setStartAfter","setEndAfter"),f.setEndBefore=u("setEndBefore","setStartBefore"),f.setEndAfter=u("setEndAfter","setStartAfter"),f.selectNodeContents=function(e){this.setStartAndEnd(e,0,o.getNodeLength(e))},g.selectNodeContents(h),g.setEnd(h,3);var m=document.createRange();m.selectNodeContents(h),m.setEnd(h,4),m.setStart(h,2),f.compareBoundaryPoints=-1==g.compareBoundaryPoints(g.START_TO_END,m)&&1==g.compareBoundaryPoints(g.END_TO_START,m)?function(e,t){return t=t.nativeRange||t,e==t.START_TO_END?e=t.END_TO_START:e==t.END_TO_START&&(e=t.START_TO_END),this.nativeRange.compareBoundaryPoints(e,t)}:function(e,t){return this.nativeRange.compareBoundaryPoints(e,t.nativeRange||t)};var R=document.createElement("div");R.innerHTML="123";var v=R.firstChild,C=c(document);C.appendChild(R),g.setStart(v,1),g.setEnd(v,2),g.deleteContents(),"13"==v.data&&(f.deleteContents=function(){this.nativeRange.deleteContents(),r(this)},f.extractContents=function(){var e=this.nativeRange.extractContents();return r(this),e}),C.removeChild(R),C=null,i.isHostMethod(g,"createContextualFragment")&&(f.createContextualFragment=function(e){return this.nativeRange.createContextualFragment(e)}),c(document).removeChild(h),f.getName=function(){return"WrappedRange"},e.WrappedRange=n,e.createNativeRange=function(e){return e=d(e,t,"createNativeRange"),e.createRange()}}(),e.features.implementsTextRange){var u=function(e){var t=e.parentElement(),n=e.duplicate();n.collapse(!0);var r=n.parentElement();n=e.duplicate(),n.collapse(!1);var i=n.parentElement(),a=r==i?r:o.getCommonAncestor(r,i);return a==t?a:o.getCommonAncestor(t,a)},l=function(e){return 0==e.compareEndPoints("StartToEnd",e)},h=function(e,t,n,r,i){var s=e.duplicate();s.collapse(n);var c=s.parentElement();if(o.isOrIsAncestorOf(t,c)||(c=t),!c.canHaveHTML){var d=new a(c.parentNode,o.getNodeIndex(c));return{boundaryPosition:d,nodeInfo:{nodeIndex:d.offset,containerElement:d.node}}}var u=o.getDocument(c).createElement("span");u.parentNode&&o.removeNode(u);for(var l,h,g,p,m,R=n?"StartToStart":"StartToEnd",v=i&&i.containerElement==c?i.nodeIndex:0,C=c.childNodes.length,N=C,E=N;;){if(E==C?c.appendChild(u):c.insertBefore(u,c.childNodes[E]),s.moveToElementText(u),l=s.compareEndPoints(R,e),0==l||v==N)break;if(-1==l){if(N==v+1)break;v=E}else N=N==v+1?v:E;E=Math.floor((v+N)/2),c.removeChild(u)}if(m=u.nextSibling,-1==l&&m&&f(m)){s.setEndPoint(n?"EndToStart":"EndToEnd",e);var S;if(/[\r\n]/.test(m.data)){var y=s.duplicate(),w=y.text.replace(/\r\n/g,"\r").length;for(S=y.moveStart("character",w);-1==(l=y.compareEndPoints("StartToEnd",y));)S++,y.moveStart("character",1)}else S=s.text.length;p=new a(m,S)}else h=(r||!n)&&u.previousSibling,g=(r||n)&&u.nextSibling,p=g&&f(g)?new a(g,0):h&&f(h)?new a(h,h.data.length):new a(c,o.getNodeIndex(u));return o.removeNode(u),{boundaryPosition:p,nodeInfo:{nodeIndex:E,containerElement:c}}},g=function(e,t){var n,r,i,a,s=e.offset,d=o.getDocument(e.node),u=c(d).createTextRange(),l=f(e.node);return l?(n=e.node,r=n.parentNode):(a=e.node.childNodes,n=s<a.length?a[s]:null,r=e.node),i=d.createElement("span"),i.innerHTML="&#feff;",n?r.insertBefore(i,n):r.appendChild(i),u.moveToElementText(i),u.collapse(!t),r.removeChild(i),l&&u[t?"moveStart":"moveEnd"]("character",s),u};r=function(e){this.textRange=e,this.refresh()},r.prototype=new s(document),r.prototype.refresh=function(){var e,t,n,r=u(this.textRange);
|
||
l(this.textRange)?t=e=h(this.textRange,r,!0,!0).boundaryPosition:(n=h(this.textRange,r,!0,!1),e=n.boundaryPosition,t=h(this.textRange,r,!1,!1,n.nodeInfo).boundaryPosition),this.setStart(e.node,e.offset),this.setEnd(t.node,t.offset)},r.prototype.getName=function(){return"WrappedTextRange"},s.copyComparisonConstants(r);var p=function(e){if(e.collapsed)return g(new a(e.startContainer,e.startOffset),!0);var t=g(new a(e.startContainer,e.startOffset),!0),n=g(new a(e.endContainer,e.endOffset),!1),r=c(s.getRangeDocument(e)).createTextRange();return r.setEndPoint("StartToStart",t),r.setEndPoint("EndToEnd",n),r};if(r.rangeToTextRange=p,r.prototype.toTextRange=function(){return p(this)},e.WrappedTextRange=r,!e.features.implementsDomRange||e.config.preferTextRange){var m=function(e){return e("return this;")()}(Function);"undefined"==typeof m.Range&&(m.Range=r),e.createNativeRange=function(e){return e=d(e,t,"createNativeRange"),c(e).createTextRange()},e.WrappedRange=r}}e.createRange=function(n){return n=d(n,t,"createRange"),new e.WrappedRange(e.createNativeRange(n))},e.createRangyRange=function(e){return e=d(e,t,"createRangyRange"),new s(e)},i.createAliasForDeprecatedMethod(e,"createIframeRange","createRange"),i.createAliasForDeprecatedMethod(e,"createIframeRangyRange","createRangyRange"),e.addShimListener(function(t){var n=t.document;"undefined"==typeof n.createRange&&(n.createRange=function(){return e.createRange(n)}),n=t=null})}),I.createCoreModule("WrappedSelection",["DomRange","WrappedRange"],function(e,t){function n(e){return"string"==typeof e?/^backward(s)?$/i.test(e):!!e}function r(e,n){if(e){if(D.isWindow(e))return e;if(e instanceof R)return e.win;var r=D.getContentDocument(e,t,n);return D.getWindow(r)}return window}function o(e){return r(e,"getWinSelection").getSelection()}function i(e){return r(e,"getDocSelection").document.selection}function a(e){var t=!1;return e.anchorNode&&(t=1==D.comparePoints(e.anchorNode,e.anchorOffset,e.focusNode,e.focusOffset)),t}function s(e,t,n){var r=n?"end":"start",o=n?"start":"end";e.anchorNode=t[r+"Container"],e.anchorOffset=t[r+"Offset"],e.focusNode=t[o+"Container"],e.focusOffset=t[o+"Offset"]}function c(e){var t=e.nativeSelection;e.anchorNode=t.anchorNode,e.anchorOffset=t.anchorOffset,e.focusNode=t.focusNode,e.focusOffset=t.focusOffset}function d(e){e.anchorNode=e.focusNode=null,e.anchorOffset=e.focusOffset=0,e.rangeCount=0,e.isCollapsed=!0,e._ranges.length=0}function f(t){var n;return t instanceof b?(n=e.createNativeRange(t.getDocument()),n.setEnd(t.endContainer,t.endOffset),n.setStart(t.startContainer,t.startOffset)):t instanceof P?n=t.nativeRange:H.implementsDomRange&&t instanceof D.getWindow(t.startContainer).Range&&(n=t),n}function u(e){if(!e.length||1!=e[0].nodeType)return!1;for(var t=1,n=e.length;n>t;++t)if(!D.isAncestorOf(e[0],e[t]))return!1;return!0}function l(e){var n=e.getNodes();if(!u(n))throw t.createError("getSingleElementFromRange: range "+e.inspect()+" did not consist of a single element");return n[0]}function h(e){return!!e&&"undefined"!=typeof e.text}function g(e,t){var n=new P(t);e._ranges=[n],s(e,n,!1),e.rangeCount=1,e.isCollapsed=n.collapsed}function p(t){if(t._ranges.length=0,"None"==t.docSelection.type)d(t);else{var n=t.docSelection.createRange();if(h(n))g(t,n);else{t.rangeCount=n.length;for(var r,o=k(n.item(0)),i=0;i<t.rangeCount;++i)r=e.createRange(o),r.selectNode(n.item(i)),t._ranges.push(r);t.isCollapsed=1==t.rangeCount&&t._ranges[0].collapsed,s(t,t._ranges[t.rangeCount-1],!1)}}}function m(e,n){for(var r=e.docSelection.createRange(),o=l(n),i=k(r.item(0)),a=L(i).createControlRange(),s=0,c=r.length;c>s;++s)a.add(r.item(s));try{a.add(o)}catch(d){throw t.createError("addRange(): Element within the specified Range could not be added to control selection (does it have layout?)")}a.select(),p(e)}function R(e,t,n){this.nativeSelection=e,this.docSelection=t,this._ranges=[],this.win=n,this.refresh()}function v(e){e.win=e.anchorNode=e.focusNode=e._ranges=null,e.rangeCount=e.anchorOffset=e.focusOffset=0,e.detached=!0}function C(e,t){for(var n,r,o=tt.length;o--;)if(n=tt[o],r=n.selection,"deleteAll"==t)v(r);else if(n.win==e)return"delete"==t?(tt.splice(o,1),!0):r;return"deleteAll"==t&&(tt.length=0),null}function N(e,n){for(var r,o=k(n[0].startContainer),i=L(o).createControlRange(),a=0,s=n.length;s>a;++a){r=l(n[a]);try{i.add(r)}catch(c){throw t.createError("setRanges(): Element within one of the specified Ranges could not be added to control selection (does it have layout?)")}}i.select(),p(e)}function E(e,t){if(e.win.document!=k(t))throw new I("WRONG_DOCUMENT_ERR")}function S(t){return function(n,r){var o;this.rangeCount?(o=this.getRangeAt(0),o["set"+(t?"Start":"End")](n,r)):(o=e.createRange(this.win.document),o.setStartAndEnd(n,r)),this.setSingleRange(o,this.isBackward())}}function y(e){var t=[],n=new B(e.anchorNode,e.anchorOffset),r=new B(e.focusNode,e.focusOffset),o="function"==typeof e.getName?e.getName():"Selection";if("undefined"!=typeof e.rangeCount)for(var i=0,a=e.rangeCount;a>i;++i)t[i]=b.inspect(e.getRangeAt(i));return"["+o+"(Ranges: "+t.join(", ")+")(anchor: "+n.inspect()+", focus: "+r.inspect()+"]"}e.config.checkSelectionRanges=!0;var w,T,O="boolean",_="number",D=e.dom,A=e.util,x=A.isHostMethod,b=e.DomRange,P=e.WrappedRange,I=e.DOMException,B=D.DomPosition,H=e.features,M="Control",k=D.getDocument,L=D.getBody,W=b.rangesEqual,F=x(window,"getSelection"),j=A.isHostObject(document,"selection");H.implementsWinGetSelection=F,H.implementsDocSelection=j;var z=j&&(!F||e.config.preferTextRange);if(z)w=i,e.isSelectionValid=function(e){var t=r(e,"isSelectionValid").document,n=t.selection;return"None"!=n.type||k(n.createRange().parentElement())==t};else{if(!F)return t.fail("Neither document.selection or window.getSelection() detected."),!1;w=o,e.isSelectionValid=function(){return!0}}e.getNativeSelection=w;var U=w();if(!U)return t.fail("Native selection was null (possibly issue 138?)"),!1;var V=e.createNativeRange(document),q=L(document),Y=A.areHostProperties(U,["anchorNode","focusNode","anchorOffset","focusOffset"]);H.selectionHasAnchorAndFocus=Y;var Q=x(U,"extend");H.selectionHasExtend=Q;var G=typeof U.rangeCount==_;H.selectionHasRangeCount=G;var X=!1,Z=!0,$=Q?function(t,n){var r=b.getRangeDocument(n),o=e.createRange(r);o.collapseToPoint(n.endContainer,n.endOffset),t.addRange(f(o)),t.extend(n.startContainer,n.startOffset)}:null;A.areHostMethods(U,["addRange","getRangeAt","removeAllRanges"])&&typeof U.rangeCount==_&&H.implementsDomRange&&!function(){var t=window.getSelection();if(t){for(var n=t.rangeCount,r=n>1,o=[],i=a(t),s=0;n>s;++s)o[s]=t.getRangeAt(s);var c=D.createTestElement(document,"",!1),d=c.appendChild(document.createTextNode(" ")),f=document.createRange();if(f.setStart(d,1),f.collapse(!0),t.removeAllRanges(),t.addRange(f),Z=1==t.rangeCount,t.removeAllRanges(),!r){var u=window.navigator.appVersion.match(/Chrome\/(.*?) /);if(u&&parseInt(u[1])>=36)X=!1;else{var l=f.cloneRange();f.setStart(d,0),l.setEnd(d,3),l.setStart(d,2),t.addRange(f),t.addRange(l),X=2==t.rangeCount}}for(D.removeNode(c),t.removeAllRanges(),s=0;n>s;++s)0==s&&i?$?$(t,o[s]):(e.warn("Rangy initialization: original selection was backwards but selection has been restored forwards because the browser does not support Selection.extend"),t.addRange(o[s])):t.addRange(o[s])}}(),H.selectionSupportsMultipleRanges=X,H.collapsedNonEditableSelectionsSupported=Z;var J,K=!1;q&&x(q,"createControlRange")&&(J=q.createControlRange(),A.areHostProperties(J,["item","add"])&&(K=!0)),H.implementsControlRange=K,T=Y?function(e){return e.anchorNode===e.focusNode&&e.anchorOffset===e.focusOffset}:function(e){return e.rangeCount?e.getRangeAt(e.rangeCount-1).collapsed:!1};var et;x(U,"getRangeAt")?et=function(e,t){try{return e.getRangeAt(t)}catch(n){return null}}:Y&&(et=function(t){var n=k(t.anchorNode),r=e.createRange(n);return r.setStartAndEnd(t.anchorNode,t.anchorOffset,t.focusNode,t.focusOffset),r.collapsed!==this.isCollapsed&&r.setStartAndEnd(t.focusNode,t.focusOffset,t.anchorNode,t.anchorOffset),r}),R.prototype=e.selectionPrototype;var tt=[],nt=function(e){if(e&&e instanceof R)return e.refresh(),e;e=r(e,"getNativeSelection");var t=C(e),n=w(e),o=j?i(e):null;return t?(t.nativeSelection=n,t.docSelection=o,t.refresh()):(t=new R(n,o,e),tt.push({win:e,selection:t})),t};e.getSelection=nt,A.createAliasForDeprecatedMethod(e,"getIframeSelection","getSelection");var rt=R.prototype;if(!z&&Y&&A.areHostMethods(U,["removeAllRanges","addRange"])){rt.removeAllRanges=function(){this.nativeSelection.removeAllRanges(),d(this)};var ot=function(e,t){$(e.nativeSelection,t),e.refresh()};rt.addRange=G?function(t,r){if(K&&j&&this.docSelection.type==M)m(this,t);else if(n(r)&&Q)ot(this,t);else{var o;X?o=this.rangeCount:(this.removeAllRanges(),o=0);var i=f(t).cloneRange();try{this.nativeSelection.addRange(i)}catch(a){}if(this.rangeCount=this.nativeSelection.rangeCount,this.rangeCount==o+1){if(e.config.checkSelectionRanges){var c=et(this.nativeSelection,this.rangeCount-1);c&&!W(c,t)&&(t=new P(c))}this._ranges[this.rangeCount-1]=t,s(this,t,st(this.nativeSelection)),this.isCollapsed=T(this)}else this.refresh()}}:function(e,t){n(t)&&Q?ot(this,e):(this.nativeSelection.addRange(f(e)),this.refresh())},rt.setRanges=function(e){if(K&&j&&e.length>1)N(this,e);else{this.removeAllRanges();for(var t=0,n=e.length;n>t;++t)this.addRange(e[t])}}}else{if(!(x(U,"empty")&&x(V,"select")&&K&&z))return t.fail("No means of selecting a Range or TextRange was found"),!1;rt.removeAllRanges=function(){try{if(this.docSelection.empty(),"None"!=this.docSelection.type){var e;if(this.anchorNode)e=k(this.anchorNode);else if(this.docSelection.type==M){var t=this.docSelection.createRange();t.length&&(e=k(t.item(0)))}if(e){var n=L(e).createTextRange();n.select(),this.docSelection.empty()}}}catch(r){}d(this)},rt.addRange=function(t){this.docSelection.type==M?m(this,t):(e.WrappedTextRange.rangeToTextRange(t).select(),this._ranges[0]=t,this.rangeCount=1,this.isCollapsed=this._ranges[0].collapsed,s(this,t,!1))},rt.setRanges=function(e){this.removeAllRanges();var t=e.length;t>1?N(this,e):t&&this.addRange(e[0])}}rt.getRangeAt=function(e){if(0>e||e>=this.rangeCount)throw new I("INDEX_SIZE_ERR");return this._ranges[e].cloneRange()};var it;if(z)it=function(t){var n;e.isSelectionValid(t.win)?n=t.docSelection.createRange():(n=L(t.win.document).createTextRange(),n.collapse(!0)),t.docSelection.type==M?p(t):h(n)?g(t,n):d(t)};else if(x(U,"getRangeAt")&&typeof U.rangeCount==_)it=function(t){if(K&&j&&t.docSelection.type==M)p(t);else if(t._ranges.length=t.rangeCount=t.nativeSelection.rangeCount,t.rangeCount){for(var n=0,r=t.rangeCount;r>n;++n)t._ranges[n]=new e.WrappedRange(t.nativeSelection.getRangeAt(n));s(t,t._ranges[t.rangeCount-1],st(t.nativeSelection)),t.isCollapsed=T(t)}else d(t)};else{if(!Y||typeof U.isCollapsed!=O||typeof V.collapsed!=O||!H.implementsDomRange)return t.fail("No means of obtaining a Range or TextRange from the user's selection was found"),!1;it=function(e){var t,n=e.nativeSelection;n.anchorNode?(t=et(n,0),e._ranges=[t],e.rangeCount=1,c(e),e.isCollapsed=T(e)):d(e)}}rt.refresh=function(e){var t=e?this._ranges.slice(0):null,n=this.anchorNode,r=this.anchorOffset;if(it(this),e){var o=t.length;if(o!=this._ranges.length)return!0;if(this.anchorNode!=n||this.anchorOffset!=r)return!0;for(;o--;)if(!W(t[o],this._ranges[o]))return!0;return!1}};var at=function(e,t){var n=e.getAllRanges();e.removeAllRanges();for(var r=0,o=n.length;o>r;++r)W(t,n[r])||e.addRange(n[r]);e.rangeCount||d(e)};rt.removeRange=K&&j?function(e){if(this.docSelection.type==M){for(var t,n=this.docSelection.createRange(),r=l(e),o=k(n.item(0)),i=L(o).createControlRange(),a=!1,s=0,c=n.length;c>s;++s)t=n.item(s),t!==r||a?i.add(n.item(s)):a=!0;i.select(),p(this)}else at(this,e)}:function(e){at(this,e)};var st;!z&&Y&&H.implementsDomRange?(st=a,rt.isBackward=function(){return st(this)}):st=rt.isBackward=function(){return!1},rt.isBackwards=rt.isBackward,rt.toString=function(){for(var e=[],t=0,n=this.rangeCount;n>t;++t)e[t]=""+this._ranges[t];return e.join("")},rt.collapse=function(t,n){E(this,t);var r=e.createRange(t);r.collapseToPoint(t,n),this.setSingleRange(r),this.isCollapsed=!0},rt.collapseToStart=function(){if(!this.rangeCount)throw new I("INVALID_STATE_ERR");var e=this._ranges[0];this.collapse(e.startContainer,e.startOffset)},rt.collapseToEnd=function(){if(!this.rangeCount)throw new I("INVALID_STATE_ERR");var e=this._ranges[this.rangeCount-1];this.collapse(e.endContainer,e.endOffset)},rt.selectAllChildren=function(t){E(this,t);var n=e.createRange(t);n.selectNodeContents(t),this.setSingleRange(n)},rt.deleteFromDocument=function(){if(K&&j&&this.docSelection.type==M){for(var e,t=this.docSelection.createRange();t.length;)e=t.item(0),t.remove(e),D.removeNode(e);this.refresh()}else if(this.rangeCount){var n=this.getAllRanges();if(n.length){this.removeAllRanges();for(var r=0,o=n.length;o>r;++r)n[r].deleteContents();this.addRange(n[o-1])}}},rt.eachRange=function(e,t){for(var n=0,r=this._ranges.length;r>n;++n)if(e(this.getRangeAt(n)))return t},rt.getAllRanges=function(){var e=[];return this.eachRange(function(t){e.push(t)}),e},rt.setSingleRange=function(e,t){this.removeAllRanges(),this.addRange(e,t)},rt.callMethodOnEachRange=function(e,t){var n=[];return this.eachRange(function(r){n.push(r[e].apply(r,t||[]))}),n},rt.setStart=S(!0),rt.setEnd=S(!1),e.rangePrototype.select=function(e){nt(this.getDocument()).setSingleRange(this,e)},rt.changeEachRange=function(e){var t=[],n=this.isBackward();this.eachRange(function(n){e(n),t.push(n)}),this.removeAllRanges(),n&&1==t.length?this.addRange(t[0],"backward"):this.setRanges(t)},rt.containsNode=function(e,t){return this.eachRange(function(n){return n.containsNode(e,t)},!0)||!1},rt.getBookmark=function(e){return{backward:this.isBackward(),rangeBookmarks:this.callMethodOnEachRange("getBookmark",[e])}},rt.moveToBookmark=function(t){for(var n,r,o=[],i=0;n=t.rangeBookmarks[i++];)r=e.createRange(this.win),r.moveToBookmark(n),o.push(r);t.backward?this.setSingleRange(o[0],"backward"):this.setRanges(o)},rt.saveRanges=function(){return{backward:this.isBackward(),ranges:this.callMethodOnEachRange("cloneRange")}},rt.restoreRanges=function(e){this.removeAllRanges();for(var t,n=0;t=e.ranges[n];++n)this.addRange(t,e.backward&&0==n)},rt.toHtml=function(){var e=[];return this.eachRange(function(t){e.push(b.toHtml(t))}),e.join("")},H.implementsTextRange&&(rt.getNativeTextRange=function(){var n;if(n=this.docSelection){var r=n.createRange();if(h(r))return r;throw t.createError("getNativeTextRange: selection is a control selection")}if(this.rangeCount>0)return e.WrappedTextRange.rangeToTextRange(this.getRangeAt(0));throw t.createError("getNativeTextRange: selection contains no range")}),rt.getName=function(){return"WrappedSelection"},rt.inspect=function(){return y(this)},rt.detach=function(){C(this.win,"delete"),v(this)},R.detachAll=function(){C(null,"deleteAll")},R.inspect=y,R.isDirectionBackward=n,e.Selection=R,e.selectionPrototype=rt,e.addShimListener(function(e){"undefined"==typeof e.getSelection&&(e.getSelection=function(){return nt(e)}),e=null})});var L=!1,W=function(){L||(L=!0,!I.initialized&&I.config.autoInitialize&&u())};return b&&("complete"==document.readyState?W():(e(document,"addEventListener")&&document.addEventListener("DOMContentLoaded",W,!1),H(window,"load",W))),I},this); |