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function(t,e,r){"use strict";function n(t,e,r){return e in t?Object.defineProperty(t,e,{value:r,enumerable:!0,configurable:!0,writable:!0}):t[e]=r,t}var i=r(630332),o=r(244767),a=r(187047),s=r(225758),u=r(116740),c=u.OrderedSet,l=u.Record,f=u.Stack,p=l({allowUndo:!0,currentContent:null,decorator:null,directionMap:null,forceSelection:!1,inCompositionMode:!1,inlineStyleOverride:null,lastChangeType:null,nativelyRenderedContent:null,redoStack:f(),selection:null,treeMap:null,undoStack:f()}),h=function(){e.createEmpty=function(t){return e.createWithContent(o.createFromText(""),t)},e.createWithContent=function(t,r){if(0===t.getBlockMap().count())return e.createEmpty(r);var n=t.getBlockMap().first().getKey();return e.create({currentContent:t,undoStack:f(),redoStack:f(),decorator:r||null,selection:s.createEmpty(n)})},e.create=function(t){var r=t.currentContent,i=t.decorator;return new e(new p(function(t){for(var e=1;e<arguments.length;e++){var r=null!=arguments[e]?arguments[e]:{},i=Object.keys(r);"function"==typeof Object.getOwnPropertySymbols&&(i=i.concat(Object.getOwnPropertySymbols(r).filter(function(t){return Object.getOwnPropertyDescriptor(r,t).enumerable}))),i.forEach(function(e){n(t,e,r[e])})}return t}({},t,{treeMap:g(r,i),directionMap:a.getDirectionMap(r)})))},e.set=function(t,r){return new e(t.getImmutable().withMutations(function(e){var n,o,a,s,u,c,l=e.get("decorator"),f=l;null===r.decorator?f=null:r.decorator&&(f=r.decorator);var p=r.currentContent||t.getCurrentContent();if(f!==l){var h,d,y,v,m,_,b=e.get("treeMap");_=f&&l?(h=p,d=p.getBlockMap(),y=b,v=f,m=l,y.merge(d.toSeq().filter(function(t){return v.getDecorations(t,h)!==m.getDecorations(t,h)}).map(function(t){return i.generate(h,t,v)}))):g(p,f),e.merge({decorator:f,treeMap:_,nativelyRenderedContent:null});return}p!==t.getCurrentContent()&&e.set("treeMap",(n=t,o=p.getBlockMap(),a=p.getEntityMap(),s=f,c=(u=n.getCurrentContent().set("entityMap",a)).getBlockMap(),n.getImmutable().get("treeMap").merge(o.toSeq().filter(function(t,e){return t!==c.get(e)}).map(function(t){return i.generate(u,t,s)})))),e.merge(r)}))};var t=e.prototype;function e(t){n(this,"_immutable",void 0),this._immutable=t}return t.toJS=function(){return this.getImmutable().toJS()},t.getAllowUndo=function(){return this.getImmutable().get("allowUndo")},t.getCurrentContent=function(){return this.getImmutable().get("currentContent")},t.getUndoStack=function(){return this.getImmutable().get("undoStack")},t.getRedoStack=function(){return this.getImmutable().get("redoStack")},t.getSelection=function(){return this.getImmutable().get("selection")},t.getDecorator=function(){return this.getImmutable().get("decorator")},t.isInCompositionMode=function(){return this.getImmutable().get("inCompositionMode")},t.mustForceSelection=function(){return this.getImmutable().get("forceSelection")},t.getNativelyRenderedContent=function(){return this.getImmutable().get("nativelyRenderedContent")},t.getLastChangeType=function(){return this.getImmutable().get("lastChangeType")},t.getInlineStyleOverride=function(){return this.getImmutable().get("inlineStyleOverride")},e.setInlineStyleOverride=function(t,r){return e.set(t,{inlineStyleOverride:r})},t.getCurrentInlineStyle=function(){var t,e,r,n,i,o,a,s,u,c,l=this.getInlineStyleOverride();if(null!=l)return l;var f=this.getCurrentContent(),p=this.getSelection();return p.isCollapsed()?(t=f,r=(e=p).getStartKey(),n=e.getStartOffset(),i=t.getBlockForKey(r),n>0?i.getInlineStyleAt(n-1):i.getLength()?i.getInlineStyleAt(0):y(t,r)):(o=f,s=(a=p).getStartKey(),u=a.getStartOffset(),u<(c=o.getBlockForKey(s)).getLength()?c.getInlineStyleAt(u):u>0?c.getInlineStyleAt(u-1):y(o,s))},t.getBlockTree=function(t){return this.getImmutable().getIn(["treeMap",t])},t.isSelectionAtStartOfContent=function(){var t=this.getCurrentContent().getBlockMap().first().getKey();return this.getSelection().hasEdgeWithin(t,0,0)},t.isSelectionAtEndOfContent=function(){var t=this.getCurrentContent().getBlockMap().last(),e=t.getLength();return this.getSelection().hasEdgeWithin(t.getKey(),e,e)},t.getDirectionMap=function(){return this.getImmutable().get("directionMap")},e.acceptSelection=function(t,e){return d(t,e,!1)},e.forceSelection=function(t,e){return e.getHasFocus()||(e=e.set("hasFocus",!0)),d(t,e,!0)},e.moveSelectionToEnd=function(t){var r=t.getCurrentContent().getLastBlock(),n=r.getKey(),i=r.getLength();return e.acceptSelection(t,new s({anchorKey:n,anchorOffset:i,focusKey:n,focusOffset:i,isBackward:!1}))},e.moveFocusToEnd=function(t){var r=e.moveSelectionToEnd(t);return e.forceSelection(r,r.getSelection())},e.push=function(t,r,n){var i,o,s=!(arguments.length>3)||void 0===arguments[3]||arguments[3];if(t.getCurrentContent()===r)return t;var u=a.getDirectionMap(r,t.getDirectionMap());if(!t.getAllowUndo())return e.set(t,{currentContent:r,directionMap:u,lastChangeType:n,selection:r.getSelectionAfter(),forceSelection:s,inlineStyleOverride:null});var c=t.getSelection(),l=t.getCurrentContent(),p=t.getUndoStack(),h=r;c!==l.getSelectionAfter()||(i=t,(o=n)!==i.getLastChangeType()||"insert-characters"!==o&&"backspace-character"!==o&&"delete-character"!==o)?(p=p.push(l),h=h.set("selectionBefore",c)):("insert-characters"===n||"backspace-character"===n||"delete-character"===n)&&(h=h.set("selectionBefore",l.getSelectionBefore()));var d=t.getInlineStyleOverride();-1===["adjust-depth","change-block-type","split-block"].indexOf(n)&&(d=null);var g={currentContent:h,directionMap:u,undoStack:p,redoStack:f(),lastChangeType:n,selection:r.getSelectionAfter(),forceSelection:s,inlineStyleOverride:d};return e.set(t,g)},e.undo=function(t){if(!t.getAllowUndo())return t;var r=t.getUndoStack(),n=r.peek();if(!n)return t;var i=t.getCurrentContent(),o=a.getDirectionMap(n,t.getDirectionMap());return e.set(t,{currentContent:n,directionMap:o,undoStack:r.shift(),redoStack:t.getRedoStack().push(i),forceSelection:!0,inlineStyleOverride:null,lastChangeType:"undo",nativelyRenderedContent:null,selection:i.getSelectionBefore()})},e.redo=function(t){if(!t.getAllowUndo())return t;var r=t.getRedoStack(),n=r.peek();if(!n)return t;var i=t.getCurrentContent(),o=a.getDirectionMap(n,t.getDirectionMap());return e.set(t,{currentContent:n,directionMap:o,undoStack:t.getUndoStack().push(i),redoStack:r.shift(),forceSelection:!0,inlineStyleOverride:null,lastChangeType:"redo",nativelyRenderedContent:null,selection:n.getSelectionAfter()})},t.getImmutable=function(){return this._immutable},e}();function d(t,e,r){return h.set(t,{selection:e,forceSelection:r,nativelyRenderedContent:null,inlineStyleOverride:null})}function g(t,e){return t.getBlockMap().map(function(r){return i.generate(t,r,e)}).toOrderedMap()}function y(t,e){var r=t.getBlockMap().reverse().skipUntil(function(t,r){return r===e}).skip(1).skipUntil(function(t,e){return t.getLength()}).first();return r?r.getInlineStyleAt(r.getLength()-1):c()}t.exports=h}