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[
Home
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File: rangy-cssclassapplier.js
/** * Class Applier module for Rangy. * Adds, removes and toggles classes on Ranges and Selections * * Part of Rangy, a cross-browser JavaScript range and selection library * http://code.google.com/p/rangy/ * * Depends on Rangy core. * * Copyright 2014, Tim Down * Licensed under the MIT license. * Version: 1.3alpha.20140716 * Build date: 16 July 2014 */ rangy.createModule("ClassApplier",["WrappedSelection"],function(e,t){function n(e,t){for(var n in e)if(e.hasOwnProperty(n)&&t(n,e[n])===!1)return!1;return!0}function s(e){return e.replace(/^\s\s*/,"").replace(/\s\s*$/,"")}function r(e,t){return e.className&&new RegExp("(?:^|\\s)"+t+"(?:\\s|$)").test(e.className)}function i(e,t){e.className?r(e,t)||(e.className+=" "+t):e.className=t}function o(e){return e&&e.split(/\s+/).sort().join(" ")}function a(e){return o(e.className)}function l(e,t){return a(e)==a(t)}function f(e,t,n,s,r){var 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n,s,r,i=0,o=e.attributes.length;o>i;++i)if(n=e.attributes[i],r=n.name,"class"!=r){if(s=t.attributes.getNamedItem(r),null===n!=(null===s))return!1;if(n.specified!=s.specified)return!1;if(n.specified&&n.nodeValue!==s.nodeValue)return!1}return!0}function v(e,t){for(var n,s=0,r=e.attributes.length;r>s;++s)if(n=e.attributes[s].name,(!t||!j(t,n))&&e.attributes[s].specified&&"class"!=n)return!0;return!1}function C(e,t){return n(t,function(t,n){if("object"==typeof n){if(!C(e[t],n))return!1}else if(e[t]!==n)return!1})}function y(e){var t;return e&&1==e.nodeType&&((t=e.parentNode)&&9==t.nodeType&&"on"==t.designMode||$(e)&&!$(e.parentNode))}function T(e){return($(e)||1!=e.nodeType&&$(e.parentNode))&&!y(e)}function E(e){return e&&1==e.nodeType&&!U.test(H(e,"display"))}function b(e){if(0==e.data.length)return!0;if(V.test(e.data))return!1;var t=H(e.parentNode,"whiteSpace");switch(t){case"pre":case"pre-wrap":case"-moz-pre-wrap":return!1;case"pre-line":if(/[\r\n]/.test(e.data))return!1}return 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e}function w(e,t){return e.namespaceURI==t.namespaceURI&&e.tagName.toLowerCase()==t.tagName.toLowerCase()&&l(e,t)&&N(e,t)&&"inline"==H(e,"display")&&"inline"==H(t,"display")}function P(e){var t=e?"nextSibling":"previousSibling";return function(n,s){var r=n.parentNode,i=n[t];if(i){if(i&&3==i.nodeType)return i}else if(s&&(i=r[t],i&&1==i.nodeType&&w(r,i))){var o=i[e?"firstChild":"lastChild"];if(o&&3==o.nodeType)return o}return null}}function O(e){this.isElementMerge=1==e.nodeType,this.textNodes=[];var t=this.isElementMerge?e.lastChild:e;t&&(this.textNodes[0]=t)}function I(e,t,r){var i,o,a,l,f=this;f.cssClass=e;var d=null,u={};if("object"==typeof t&&null!==t){for(r=t.tagNames,d=t.elementProperties,u=t.elementAttributes,o=0;l=F[o++];)t.hasOwnProperty(l)&&(f[l]=t[l]);i=t.normalize}else i=t;f.normalize="undefined"==typeof i?!0:i,f.attrExceptions=[];var 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e=this.textNodes.length,t=0;e--;)t+=this.textNodes[e].length;return t},toString:function(){for(var e=[],t=0,n=this.textNodes.length;n>t;++t)e[t]="'"+this.textNodes[t].data+"'";return"[Merge("+e.join(",")+")]"}};var F=["elementTagName","ignoreWhiteSpace","applyToEditableOnly","useExistingElements","removeEmptyElements","onElementCreate"],G={};I.prototype={elementTagName:B,elementProperties:{},elementAttributes:{},ignoreWhiteSpace:!0,applyToEditableOnly:!1,useExistingElements:!0,removeEmptyElements:!0,onElementCreate:null,copyPropertiesToElement:function(e,t,n){var s,r,a,l,f,d,u={};for(var p in e)if(e.hasOwnProperty(p))if(l=e[p],f=t[p],"className"==p)i(t,l),i(t,this.cssClass),t[p]=o(t[p]),n&&(u[p]=t[p]);else if("style"==p){r=f,n&&(u[p]=a={});for(s in e[p])r[s]=l[s],n&&(a[s]=r[s]);this.attrExceptions.push(p)}else t[p]=l,n&&(u[p]=t[p],d=G.hasOwnProperty(p)?G[p]:p,this.attrExceptions.push(d));return n?u:""},copyAttributesToElement:function(e,t){for(var n in 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this.copyPropertiesToElement(this.elementProperties,t,!1),this.copyAttributesToElement(this.elementAttributes,t),i(t,this.cssClass),this.onElementCreate&&this.onElementCreate(t,this),t},applyToTextNode:function(e){var t=e.parentNode;if(1==t.childNodes.length&&this.useExistingElements&&z(t)&&j(this.tagNames,t.tagName.toLowerCase())&&C(t,this.elementProperties))i(t,this.cssClass);else{var n=this.createContainer(M.getDocument(e));e.parentNode.insertBefore(n,e),n.appendChild(e)}},isRemovable:function(e){return z(e)&&e.tagName.toLowerCase()==this.elementTagName&&a(e)==this.elementSortedClassName&&C(e,this.elementProperties)&&!v(e,this.attrExceptions)&&this.isModifiable(e)},isEmptyContainer:function(e){var t=e.childNodes.length;return 1==e.nodeType&&this.isRemovable(e)&&(0==t||1==t&&this.isEmptyContainer(e.firstChild))},removeEmptyContainers:function(e){for(var t,n=this,s=e.getNodes([1],function(e){return n.isEmptyContainer(e)}),r=[e],i=A(r),o=0;t=s[o++];)p(t,i);S(r,i)},undoToTextNode:function(e,t,n,s){if(!t.containsNode(n)){var r=t.cloneRange();r.selectNode(n),r.isPointInRange(t.endContainer,t.endOffset)&&(R(n,t.endContainer,t.endOffset,s),t.setEndAfter(n)),r.isPointInRange(t.startContainer,t.startOffset)&&(n=R(n,t.startContainer,t.startOffset,s))}this.isRemovable(n)?h(n,s):D(n,this.cssClass)},applyToRange:function(e,t){t=t||[];var n=A(t||[]);e.splitBoundariesPreservingPositions(n),this.removeEmptyElements&&this.removeEmptyContainers(e);var s=m(e);if(s.length){for(var r,i=0;r=s[i++];)this.isIgnorableWhiteSpaceNode(r)||this.getSelfOrAncestorWithClass(r)||!this.isModifiable(r)||this.applyToTextNode(r,n);r=s[s.length-1],e.setStartAndEnd(s[0],0,r,r.length),this.normalize&&this.postApply(s,e,n,!1),S(t,n)}},applyToRanges:function(e){for(var t=e.length;t--;)this.applyToRange(e[t],e);return e},applyToSelection:function(t){var 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n,s=0;n=t[s++];)if(!this.isIgnorableWhiteSpaceNode(n)&&g(e,n)&&this.isModifiable(n)&&!this.getSelfOrAncestorWithClass(n))return!1;return!0},isAppliedToRanges:function(e){var t=e.length;if(0==t)return!1;for(;t--;)if(!this.isAppliedToRange(e[t]))return!1;return!0},isAppliedToSelection:function(t){var n=e.getSelection(t);return this.isAppliedToRanges(n.getAllRanges())},toggleRange:function(e){this.isAppliedToRange(e)?this.undoToRange(e):this.applyToRange(e)},toggleSelection:function(e){this.isAppliedToSelection(e)?this.undoToSelection(e):this.applyToSelection(e)},getElementsWithClassIntersectingRange:function(e){var t=[],n=this;return e.getNodes([3],function(e){var 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