nano-ai-pdf/dist/index.js

This package helps you summarize pdfs using Gemini nano on edge or on browser, making it compliant safe, faster and free

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l=this.#C+1;l===this.#S?this.#x.splice(0,1):(this.#C=l,l<this.#x.length&&this.#x.splice(l)),this.#x.push(o)}undo(){if(-1===this.#C)return;this.#E=!0;const{undo:t,post:e}=this.#x[this.#C];t(),e?.(),this.#E=!1,this.#C-=1}redo(){if(this.#C<this.#x.length-1){this.#C+=1,this.#E=!0;const{cmd:t,post:e}=this.#x[this.#C];t(),e?.(),this.#E=!1}}hasSomethingToUndo(){return-1!==this.#C}hasSomethingToRedo(){return this.#C<this.#x.length-1}destroy(){this.#x=null}}class me{constructor(t){this.buffer=[],this.callbacks=new Map,this.allKeys=new Set;const{isMac:e}=Mt.platform;for(const[i,s,n={}]of t)for(const t of i){const 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t.keys()){e.style.color=i;const s=window.getComputedStyle(e).color;t.set(i,ae(s))}e.remove()}(t),mt(this,"_colors",t)}convert(t){const e=ae(t);if(!window.matchMedia("(forced-colors: active)").matches)return e;for(const[t,i]of this._colors)if(i.every((t,i)=>t===e[i]))return be._colorsMapping.get(t);return e}getHexCode(t){const e=this._colors.get(t);return e?Pt.makeHexColor(...e):t}}class ve{#M=new AbortController;#k=null;#P=new Map;#R=new Map;#I=null;#D=null;#L=null;#F=new fe;#O=null;#N=0;#j=new Set;#B=null;#z=null;#H=new Set;#U=!1;#$=!1;#G=!1;#V=null;#W=null;#q=null;#X=null;#K=!1;#Y=null;#J=new pe;#Q=!1;#Z=!1;#tt=null;#et=null;#it=null;#st=null;#nt=C.NONE;#at=new Set;#rt=null;#ot=null;#lt=null;#ht={isEditing:!1,isEmpty:!0,hasSomethingToUndo:!1,hasSomethingToRedo:!1,hasSelectedEditor:!1,hasSelectedText:!1};#ct=[0,0];#dt=null;#ut=null;#pt=null;#gt=null;static TRANSLATE_SMALL=1;static TRANSLATE_BIG=10;static get _keyboardManager(){const t=ve.prototype,e=t=>t.#ut.contains(document.activeElement)&&"BUTTON"!==document.activeElement.tagName&&t.hasSomethingToControl(),i=(t,{target:e})=>{if(e instanceof HTMLInputElement){const{type:t}=e;return"text"!==t&&"number"!==t}return!0},s=this.TRANSLATE_SMALL,n=this.TRANSLATE_BIG;return mt(this,"_keyboardManager",new me([[["ctrl+a","mac+meta+a"],t.selectAll,{checker:i}],[["ctrl+z","mac+meta+z"],t.undo,{checker:i}],[["ctrl+y","ctrl+shift+z","mac+meta+shift+z","ctrl+shift+Z","mac+meta+shift+Z"],t.redo,{checker:i}],[["Backspace","alt+Backspace","ctrl+Backspace","shift+Backspace","mac+Backspace","mac+alt+Backspace","mac+ctrl+Backspace","Delete","ctrl+Delete","shift+Delete","mac+Delete"],t.delete,{checker:i}],[["Enter","mac+Enter"],t.addNewEditorFromKeyboard,{checker:(t,{target:e})=>!(e instanceof HTMLButtonElement)&&t.#ut.contains(e)&&!t.isEnterHandled}],[[" ","mac+ "],t.addNewEditorFromKeyboard,{checker:(t,{target:e})=>!(e instanceof HTMLButtonElement)&&t.#ut.contains(document.activeElement)}],[["Escape","mac+Escape"],t.unselectAll],[["ArrowLeft","mac+ArrowLeft"],t.translateSelectedEditors,{args:[-s,0],checker:e}],[["ctrl+ArrowLeft","mac+shift+ArrowLeft"],t.translateSelectedEditors,{args:[-n,0],checker:e}],[["ArrowRight","mac+ArrowRight"],t.translateSelectedEditors,{args:[s,0],checker:e}],[["ctrl+ArrowRight","mac+shift+ArrowRight"],t.translateSelectedEditors,{args:[n,0],checker:e}],[["ArrowUp","mac+ArrowUp"],t.translateSelectedEditors,{args:[0,-s],checker:e}],[["ctrl+ArrowUp","mac+shift+ArrowUp"],t.translateSelectedEditors,{args:[0,-n],checker:e}],[["ArrowDown","mac+ArrowDown"],t.translateSelectedEditors,{args:[0,s],checker:e}],[["ctrl+ArrowDown","mac+shift+ArrowDown"],t.translateSelectedEditors,{args:[0,n],checker:e}]]))}constructor(t,e,i,s,n,a,r,o,l,h,c){const d=this._signal=this.#M.signal;this.#ut=t,this.#pt=e,this.#I=i,this._eventBus=s,s._on("editingaction",this.onEditingAction.bind(this),{signal:d}),s._on("pagechanging",this.onPageChanging.bind(this),{signal:d}),s._on("scalechanging",this.onScaleChanging.bind(this),{signal:d}),s._on("rotationchanging",this.onRotationChanging.bind(this),{signal:d}),s._on("setpreference",this.onSetPreference.bind(this),{signal:d}),s._on("switchannotationeditorparams",t=>this.updateParams(t.type,t.value),{signal:d}),this.#ft(),this.#mt(),this.#bt(),this.#D=n.annotationStorage,this.#V=n.filterFactory,this.#ot=a,this.#X=r||null,this.#U=o,this.#$=l,this.#G=h,this.#st=c||null,this.viewParameters={realScale:Vt.PDF_TO_CSS_UNITS,rotation:0},this.isShiftKeyDown=!1}destroy(){this.#gt?.resolve(),this.#gt=null,this.#M?.abort(),this.#M=null,this._signal=null;for(const t of this.#R.values())t.destroy();this.#R.clear(),this.#P.clear(),this.#H.clear(),this.#k=null,this.#at.clear(),this.#F.destroy(),this.#I?.destroy(),this.#Y?.hide(),this.#Y=null,this.#W&&(clearTimeout(this.#W),this.#W=null),this.#dt&&(clearTimeout(this.#dt),this.#dt=null)}combinedSignal(t){return AbortSignal.any([this._signal,t.signal])}get mlManager(){return this.#st}get useNewAltTextFlow(){return this.#$}get useNewAltTextWhenAddingImage(){return this.#G}get hcmFilter(){return mt(this,"hcmFilter",this.#ot?this.#V.addHCMFilter(this.#ot.foreground,this.#ot.background):"none")}get direction(){return mt(this,"direction",getComputedStyle(this.#ut).direction)}get highlightColors(){return mt(this,"highlightColors",this.#X?new Map(this.#X.split(",").map(t=>t.split("=").map(t=>t.trim()))):null)}get highlightColorNames(){return mt(this,"highlightColorNames",this.highlightColors?new Map(Array.from(this.highlightColors,t=>t.reverse())):null)}setMainHighlightColorPicker(t){this.#it=t}editAltText(t,e=!1){this.#I?.editAltText(this,t,e)}switchToMode(t,e){this._eventBus.on("annotationeditormodechanged",e,{once:!0,signal:this._signal}),this._eventBus.dispatch("showannotationeditorui",{source:this,mode:t})}setPreference(t,e){this._eventBus.dispatch("setpreference",{source:this,name:t,value:e})}onSetPreference({name:t,value:e}){if("enableNewAltTextWhenAddingImage"===t)this.#G=e}onPageChanging({pageNumber:t}){this.#N=t-1}focusMainContainer(){this.#ut.focus()}findParent(t,e){for(const i of this.#R.values()){const{x:s,y:n,width:a,height:r}=i.div.getBoundingClientRect();if(t>=s&&t<=s+a&&e>=n&&e<=n+r)return i}return null}disableUserSelect(t=!1){this.#pt.classList.toggle("noUserSelect",t)}addShouldRescale(t){this.#H.add(t)}removeShouldRescale(t){this.#H.delete(t)}onScaleChanging({scale:t}){this.commitOrRemove(),this.viewParameters.realScale=t*Vt.PDF_TO_CSS_UNITS;for(const t of this.#H)t.onScaleChanging()}onRotationChanging({pagesRotation:t}){this.commitOrRemove(),this.viewParameters.rotation=t}#vt({anchorNode:t}){return t.nodeType===Node.TEXT_NODE?t.parentElement:t}#yt(t){const{currentLayer:e}=this;if(e.hasTextLayer(t))return e;for(const e of this.#R.values())if(e.hasTextLayer(t))return e;return null}highlightSelection(t=""){const e=document.getSelection();if(!e||e.isCollapsed)return;const{anchorNode:i,anchorOffset:s,focusNode:n,focusOffset:a}=e,r=e.toString(),o=this.#vt(e).closest(".textLayer"),l=this.getSelectionBoxes(o);if(!l)return;e.empty();const h=this.#yt(o),c=this.#nt===C.NONE,d=()=>{h?.createAndAddNewEditor({x:0,y:0},!1,{methodOfCreation:t,boxes:l,anchorNode:i,anchorOffset:s,focusNode:n,focusOffset:a,text:r}),c&&this.showAllEditors("highlight",!0,!0)};c?this.switchToMode(C.HIGHLIGHT,d):d()}#At(){const t=document.getSelection();if(!t||t.isCollapsed)return;const e=this.#vt(t).closest(".textLayer"),i=this.getSelectionBoxes(e);i&&(this.#Y||=new de(this),this.#Y.show(e,i,"ltr"===this.direction))}addToAnnotationStorage(t){t.isEmpty()||!this.#D||this.#D.has(t.id)||this.#D.setValue(t.id,t)}#wt(){const t=document.getSelection();if(!t||t.isCollapsed)return void(this.#rt&&(this.#Y?.hide(),this.#rt=null,this.#_t({hasSelectedText:!1})));const{anchorNode:e}=t;if(e===this.#rt)return;const i=this.#vt(t).closest(".textLayer");if(i){if(this.#Y?.hide(),this.#rt=e,this.#_t({hasSelectedText:!0}),(this.#nt===C.HIGHLIGHT||this.#nt===C.NONE)&&(this.#nt===C.HIGHLIGHT&&this.showAllEditors("highlight",!0,!0),this.#K=this.isShiftKeyDown,!this.isShiftKeyDown)){const t=this.#nt===C.HIGHLIGHT?this.#yt(i):null;t?.toggleDrawing();const e=new AbortController,s=this.combinedSignal(e),n=i=>{"pointerup"===i.type&&0!==i.button||(e.abort(),t?.toggleDrawing(!0),"pointerup"===i.type&&this.#xt("main_toolbar"))};window.addEventListener("pointerup",n,{signal:s}),window.addEventListener("blur",n,{signal:s})}}else 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t=this.combinedSignal(this.#tt);window.addEventListener("keydown",this.keydown.bind(this),{signal:t}),window.addEventListener("keyup",this.keyup.bind(this),{signal:t})}#Ct(){this.#tt?.abort(),this.#tt=null}#Tt(){if(this.#O)return;this.#O=new AbortController;const t=this.combinedSignal(this.#O);document.addEventListener("copy",this.copy.bind(this),{signal:t}),document.addEventListener("cut",this.cut.bind(this),{signal:t}),document.addEventListener("paste",this.paste.bind(this),{signal:t})}#Mt(){this.#O?.abort(),this.#O=null}#mt(){const t=this._signal;document.addEventListener("dragover",this.dragOver.bind(this),{signal:t}),document.addEventListener("drop",this.drop.bind(this),{signal:t})}addEditListeners(){this.#bt(),this.#Tt()}removeEditListeners(){this.#Ct(),this.#Mt()}dragOver(t){for(const{type:e}of t.dataTransfer.items)for(const i of this.#z)if(i.isHandlingMimeForPasting(e))return t.dataTransfer.dropEffect="copy",void t.preventDefault()}drop(t){for(const e of t.dataTransfer.items)for(const i of this.#z)if(i.isHandlingMimeForPasting(e.type))return i.paste(e,this.currentLayer),void t.preventDefault()}copy(t){if(t.preventDefault(),this.#k?.commitOrRemove(),!this.hasSelection)return;const e=[];for(const t of this.#at){const i=t.serialize(!0);i&&e.push(i)}0!==e.length&&t.clipboardData.setData("application/pdfjs",JSON.stringify(e))}cut(t){this.copy(t),this.delete()}async paste(t){t.preventDefault();const{clipboardData:e}=t;for(const t of e.items)for(const e of this.#z)if(e.isHandlingMimeForPasting(t.type))return void e.paste(t,this.currentLayer);let i=e.getData("application/pdfjs");if(!i)return;try{i=JSON.parse(i)}catch(t){return void ut(`paste: "${t.message}".`)}if(!Array.isArray(i))return;this.unselectAll();const s=this.currentLayer;try{const t=[];for(const e of i){const i=await s.deserialize(e);if(!i)return;t.push(i)}const e=()=>{for(const e of t)this.#kt(e);this.#Pt(t)},n=()=>{for(const e of 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this.#P.get(t)}addEditor(t){this.#P.set(t.id,t)}removeEditor(t){t.div.contains(document.activeElement)&&(this.#W&&clearTimeout(this.#W),this.#W=setTimeout(()=>{this.focusMainContainer(),this.#W=null},0)),this.#P.delete(t.id),this.unselect(t),t.annotationElementId&&this.#j.has(t.annotationElementId)||this.#D?.remove(t.id)}addDeletedAnnotationElement(t){this.#j.add(t.annotationElementId),this.addChangedExistingAnnotation(t),t.deleted=!0}isDeletedAnnotationElement(t){return this.#j.has(t)}removeDeletedAnnotationElement(t){this.#j.delete(t.annotationElementId),this.removeChangedExistingAnnotation(t),t.deleted=!1}#kt(t){const e=this.#R.get(t.pageIndex);e?e.addOrRebuild(t):(this.addEditor(t),this.addToAnnotationStorage(t))}setActiveEditor(t){this.#k!==t&&(this.#k=t,t&&this.#Rt(t.propertiesToUpdate))}get#Ft(){let t=null;for(t of this.#at);return t}updateUI(t){this.#Ft===t&&this.#Rt(t.propertiesToUpdate)}toggleSelected(t){if(this.#at.has(t))return this.#at.delete(t),t.unselect(),void 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t)e.isEmpty()||(this.#at.add(e),e.select());this.#_t({hasSelectedEditor:this.hasSelection})}selectAll(){for(const t of this.#at)t.commit();this.#Pt(this.#P.values())}unselectAll(){if((!this.#k||(this.#k.commitOrRemove(),this.#nt===C.NONE))&&this.hasSelection){for(const t of this.#at)t.unselect();this.#at.clear(),this.#_t({hasSelectedEditor:!1})}}translateSelectedEditors(t,e,i=!1){if(i||this.commitOrRemove(),!this.hasSelection)return;this.#ct[0]+=t,this.#ct[1]+=e;const[s,n]=this.#ct,a=[...this.#at];this.#dt&&clearTimeout(this.#dt),this.#dt=setTimeout(()=>{this.#dt=null,this.#ct[0]=this.#ct[1]=0,this.addCommands({cmd:()=>{for(const t of a)this.#P.has(t.id)&&t.translateInPage(s,n)},undo:()=>{for(const t of a)this.#P.has(t.id)&&t.translateInPage(-s,-n)},mustExec:!1})},1e3);for(const i of a)i.translateInPage(t,e)}setUpDragSession(){if(this.hasSelection){this.disableUserSelect(!0),this.#B=new Map;for(const t of this.#at)this.#B.set(t,{savedX:t.x,savedY:t.y,savedPageIndex:t.pageIndex,newX:0,newY:0,newPageIndex:-1})}}endDragSession(){if(!this.#B)return!1;this.disableUserSelect(!1);const t=this.#B;this.#B=null;let e=!1;for(const[{x:i,y:s,pageIndex:n},a]of t)a.newX=i,a.newY=s,a.newPageIndex=n,e||=i!==a.savedX||s!==a.savedY||n!==a.savedPageIndex;if(!e)return!1;const i=(t,e,i,s)=>{if(this.#P.has(t.id)){const n=this.#R.get(s);n?t._setParentAndPosition(n,e,i):(t.pageIndex=s,t.x=e,t.y=i)}};return this.addCommands({cmd:()=>{for(const[e,{newX:s,newY:n,newPageIndex:a}]of t)i(e,s,n,a)},undo:()=>{for(const[e,{savedX:s,savedY:n,savedPageIndex:a}]of t)i(e,s,n,a)},mustExec:!0}),!0}dragSelectedEditors(t,e){if(this.#B)for(const i of this.#B.keys())i.drag(t,e)}rebuild(t){if(null===t.parent){const e=this.getLayer(t.pageIndex);e?(e.changeParent(t),e.addOrRebuild(t)):(this.addEditor(t),this.addToAnnotationStorage(t),t.rebuild())}else t.parent.addOrRebuild(t)}get isEditorHandlingKeyboard(){return 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