extract2md/dist/assets/extract2md.esm.js

Client-side PDF to Markdown conversion with OCR and optional LLM rewrite. Core dependencies bundled for offline use.

/*! For license information please see extract2md.esm.js.LICENSE.txt */
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OffscreenCanvas(Q.width,Q.height);A.getContext("bitmaprenderer").transferFromImageBitmap(Q),g.blobPromise=A.convertToBlob()}Q.close?.(),g.bitmap=null}isValidId(A){return A.startsWith(`image_${this.#F}_`)}}class YA{#y=[];#R=!1;#r;#L=-1;constructor(A=128){this.#r=A}add({cmd:A,undo:g,post:Q,mustExec:B,type:I=NaN,overwriteIfSameType:C=!1,keepUndo:E=!1}){if(B&&A(),this.#R)return;const D={cmd:A,undo:g,post:Q,type:I};if(-1===this.#L)return this.#y.length>0&&(this.#y.length=0),this.#L=0,void this.#y.push(D);if(C&&this.#y[this.#L].type===I)return E&&(D.undo=this.#y[this.#L].undo),void(this.#y[this.#L]=D);const i=this.#L+1;i===this.#r?this.#y.splice(0,1):(this.#L=i,i<this.#y.length&&this.#y.splice(i)),this.#y.push(D)}undo(){if(-1===this.#L)return;this.#R=!0;const{undo:A,post:g}=this.#y[this.#L];A(),g?.(),this.#R=!1,this.#L-=1}redo(){if(this.#L<this.#y.length-1){this.#L+=1,this.#R=!0;const{cmd:A,post:g}=this.#y[this.#L];A(),g?.(),this.#R=!1}}hasSomethingToUndo(){return-1!==this.#L}hasSomethingToRedo(){return this.#L<this.#y.length-1}cleanType(A){if(-1!==this.#L){for(let g=this.#L;g>=0;g--)if(this.#y[g].type!==A)return this.#y.splice(g+1,this.#L-g),void(this.#L=g);this.#y.length=0,this.#L=-1}}destroy(){this.#y=null}}class kA{constructor(A){this.buffer=[],this.callbacks=new Map,this.allKeys=new Set;const{isMac:g}=p.platform;for(const[Q,B,I={}]of A)for(const A of Q){const 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A.keys()){g.style.color=Q;const B=window.getComputedStyle(g).color;A.set(Q,DA(B))}g.remove()}(A),r(this,"_colors",A)}convert(A){const g=DA(A);if(!window.matchMedia("(forced-colors: active)").matches)return g;for(const[A,Q]of this._colors)if(Q.every(((A,Q)=>A===g[Q])))return cA._colorsMapping.get(A);return g}getHexCode(A){const g=this._colors.get(A);return g?O.makeHexColor(...g):A}}class FA{#J=new AbortController;#n=null;#S=new Map;#H=new Map;#d=null;#l=null;#m=null;#p=new YA;#P=null;#O=null;#Z=0;#j=new Set;#v=null;#f=null;#q=new Set;_editorUndoBar=null;#x=!1;#u=!1;#z=!1;#T=null;#b=null;#W=null;#V=null;#X=!1;#_=null;#$=new hA;#AA=!1;#gA=!1;#QA=null;#BA=null;#IA=null;#CA=null;#EA=null;#DA=w.NONE;#iA=new Set;#wA=null;#oA=null;#sA=null;#GA=null;#tA={isEditing:!1,isEmpty:!0,hasSomethingToUndo:!1,hasSomethingToRedo:!1,hasSelectedEditor:!1,hasSelectedText:!1};#NA=[0,0];#aA=null;#hA=null;#eA=null;#YA=null;static TRANSLATE_SMALL=1;static TRANSLATE_BIG=10;static get _keyboardManager(){const A=FA.prototype,g=A=>A.#hA.contains(document.activeElement)&&"BUTTON"!==document.activeElement.tagName&&A.hasSomethingToControl(),Q=(A,{target:g})=>{if(g instanceof HTMLInputElement){const{type:A}=g;return"text"!==A&&"number"!==A}return!0},B=this.TRANSLATE_SMALL,I=this.TRANSLATE_BIG;return r(this,"_keyboardManager",new kA([[["ctrl+a","mac+meta+a"],A.selectAll,{checker:Q}],[["ctrl+z","mac+meta+z"],A.undo,{checker:Q}],[["ctrl+y","ctrl+shift+z","mac+meta+shift+z","ctrl+shift+Z","mac+meta+shift+Z"],A.redo,{checker:Q}],[["Backspace","alt+Backspace","ctrl+Backspace","shift+Backspace","mac+Backspace","mac+alt+Backspace","mac+ctrl+Backspace","Delete","ctrl+Delete","shift+Delete","mac+Delete"],A.delete,{checker:Q}],[["Enter","mac+Enter"],A.addNewEditorFromKeyboard,{checker:(A,{target:g})=>!(g instanceof HTMLButtonElement)&&A.#hA.contains(g)&&!A.isEnterHandled}],[[" ","mac+ "],A.addNewEditorFromKeyboard,{checker:(A,{target:g})=>!(g instanceof HTMLButtonElement)&&A.#hA.contains(document.activeElement)}],[["Escape","mac+Escape"],A.unselectAll],[["ArrowLeft","mac+ArrowLeft"],A.translateSelectedEditors,{args:[-B,0],checker:g}],[["ctrl+ArrowLeft","mac+shift+ArrowLeft"],A.translateSelectedEditors,{args:[-I,0],checker:g}],[["ArrowRight","mac+ArrowRight"],A.translateSelectedEditors,{args:[B,0],checker:g}],[["ctrl+ArrowRight","mac+shift+ArrowRight"],A.translateSelectedEditors,{args:[I,0],checker:g}],[["ArrowUp","mac+ArrowUp"],A.translateSelectedEditors,{args:[0,-B],checker:g}],[["ctrl+ArrowUp","mac+shift+ArrowUp"],A.translateSelectedEditors,{args:[0,-I],checker:g}],[["ArrowDown","mac+ArrowDown"],A.translateSelectedEditors,{args:[0,B],checker:g}],[["ctrl+ArrowDown","mac+shift+ArrowDown"],A.translateSelectedEditors,{args:[0,I],checker:g}]]))}constructor(A,g,Q,B,I,C,E,D,i,w,o,s,G,t){const N=this._signal=this.#J.signal;this.#hA=A,this.#eA=g,this.#d=Q,this.#oA=B,this._eventBus=I,I._on("editingaction",this.onEditingAction.bind(this),{signal:N}),I._on("pagechanging",this.onPageChanging.bind(this),{signal:N}),I._on("scalechanging",this.onScaleChanging.bind(this),{signal:N}),I._on("rotationchanging",this.onRotationChanging.bind(this),{signal:N}),I._on("setpreference",this.onSetPreference.bind(this),{signal:N}),I._on("switchannotationeditorparams",(A=>this.updateParams(A.type,A.value)),{signal:N}),this.#kA(),this.#cA(),this.#FA(),this.#l=C.annotationStorage,this.#T=C.filterFactory,this.#sA=E,this.#V=D||null,this.#x=i,this.#u=w,this.#z=o,this.#EA=s||null,this.viewParameters={realScale:T.PDF_TO_CSS_UNITS,rotation:0},this.isShiftKeyDown=!1,this._editorUndoBar=G||null,this._supportsPinchToZoom=!1!==t}destroy(){this.#YA?.resolve(),this.#YA=null,this.#J?.abort(),this.#J=null,this._signal=null;for(const A of this.#H.values())A.destroy();this.#H.clear(),this.#S.clear(),this.#q.clear(),this.#CA?.clear(),this.#n=null,this.#iA.clear(),this.#p.destroy(),this.#d?.destroy(),this.#oA?.destroy(),this.#_?.hide(),this.#_=null,this.#IA?.destroy(),this.#IA=null,this.#b&&(clearTimeout(this.#b),this.#b=null),this.#aA&&(clearTimeout(this.#aA),this.#aA=null),this._editorUndoBar?.destroy()}combinedSignal(A){return AbortSignal.any([this._signal,A.signal])}get mlManager(){return this.#EA}get useNewAltTextFlow(){return this.#u}get useNewAltTextWhenAddingImage(){return this.#z}get hcmFilter(){return r(this,"hcmFilter",this.#sA?this.#T.addHCMFilter(this.#sA.foreground,this.#sA.background):"none")}get direction(){return r(this,"direction",getComputedStyle(this.#hA).direction)}get highlightColors(){return r(this,"highlightColors",this.#V?new Map(this.#V.split(",").map((A=>A.split("=").map((A=>A.trim()))))):null)}get highlightColorNames(){return r(this,"highlightColorNames",this.highlightColors?new Map(Array.from(this.highlightColors,(A=>A.reverse()))):null)}setCurrentDrawingSession(A){A?(this.unselectAll(),this.disableUserSelect(!0)):this.disableUserSelect(!1),this.#O=A}setMainHighlightColorPicker(A){this.#IA=A}editAltText(A,g=!1){this.#d?.editAltText(this,A,g)}getSignature(A){this.#oA?.getSignature({uiManager:this,editor:A})}get signatureManager(){return this.#oA}switchToMode(A,g){this._eventBus.on("annotationeditormodechanged",g,{once:!0,signal:this._signal}),this._eventBus.dispatch("showannotationeditorui",{source:this,mode:A})}setPreference(A,g){this._eventBus.dispatch("setpreference",{source:this,name:A,value:g})}onSetPreference({name:A,value:g}){"enableNewAltTextWhenAddingImage"===A&&(this.#z=g)}onPageChanging({pageNumber:A}){this.#Z=A-1}focusMainContainer(){this.#hA.focus()}findParent(A,g){for(const Q of this.#H.values()){const{x:B,y:I,width:C,height:E}=Q.div.getBoundingClientRect();if(A>=B&&A<=B+C&&g>=I&&g<=I+E)return Q}return null}disableUserSelect(A=!1){this.#eA.classList.toggle("noUserSelect",A)}addShouldRescale(A){this.#q.add(A)}removeShouldRescale(A){this.#q.delete(A)}onScaleChanging({scale:A}){this.commitOrRemove(),this.viewParameters.realScale=A*T.PDF_TO_CSS_UNITS;for(const A of this.#q)A.onScaleChanging();this.#O?.onScaleChanging()}onRotationChanging({pagesRotation:A}){this.commitOrRemove(),this.viewParameters.rotation=A}#MA({anchorNode:A}){return A.nodeType===Node.TEXT_NODE?A.parentElement:A}#UA(A){const{currentLayer:g}=this;if(g.hasTextLayer(A))return g;for(const g of this.#H.values())if(g.hasTextLayer(A))return g;return null}highlightSelection(A=""){const g=document.getSelection();if(!g||g.isCollapsed)return;const{anchorNode:Q,anchorOffset:B,focusNode:I,focusOffset:C}=g,E=g.toString(),D=this.#MA(g).closest(".textLayer"),i=this.getSelectionBoxes(D);if(!i)return;g.empty();const o=this.#UA(D),s=this.#DA===w.NONE,G=()=>{o?.createAndAddNewEditor({x:0,y:0},!1,{methodOfCreation:A,boxes:i,anchorNode:Q,anchorOffset:B,focusNode:I,focusOffset:C,text:E}),s&&this.showAllEditors("highlight",!0,!0)};s?this.switchToMode(w.HIGHLIGHT,G):G()}#yA(){const A=document.getSelection();if(!A||A.isCollapsed)return;const g=this.#MA(A).closest(".textLayer"),Q=this.getSelectionBoxes(g);Q&&(this.#_||=new NA(this),this.#_.show(g,Q,"ltr"===this.direction))}addToAnnotationStorage(A){A.isEmpty()||!this.#l||this.#l.has(A.id)||this.#l.setValue(A.id,A)}#RA(){const A=document.getSelection();if(!A||A.isCollapsed)return void(this.#wA&&(this.#_?.hide(),this.#wA=null,this.#rA({hasSelectedText:!1})));const{anchorNode:g}=A;if(g===this.#wA)return;const Q=this.#MA(A).closest(".textLayer");if(Q){if(this.#_?.hide(),this.#wA=g,this.#rA({hasSelectedText:!0}),(this.#DA===w.HIGHLIGHT||this.#DA===w.NONE)&&(this.#DA===w.HIGHLIGHT&&this.showAllEditors("highlight",!0,!0),this.#X=this.isShiftKeyDown,!this.isShiftKeyDown)){const A=this.#DA===w.HIGHLIGHT?this.#UA(Q):null;A?.toggleDrawing();const g=new AbortController,B=this.combinedSignal(g),I=Q=>{"pointerup"===Q.type&&0!==Q.button||(g.abort(),A?.toggleDrawing(!0),"pointerup"===Q.type&&this.#LA("main_toolbar"))};wi