mostly formatting, dependency fix
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@@ -1,5 +1,5 @@
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import * as pdfjsLib from "pdfjs-dist";
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import pdfjsWorker from "pdfjs-dist/build/pdf.worker?worker&url";
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import * as pdfjsLib from 'pdfjs-dist';
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import pdfjsWorker from 'pdfjs-dist/build/pdf.worker?worker&url';
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// pdf.js worker setup for Vite
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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@@ -42,7 +42,7 @@ interface ThumbnailGenerationOptions {
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*/
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export async function generateThumbnailsProgressive(
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arrayBuffer: ArrayBuffer,
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options: ThumbnailGenerationOptions = {},
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options: ThumbnailGenerationOptions = {}
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): Promise<string[]> {
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return generateThumbnailsInternal(arrayBuffer, {}, options);
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}
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@@ -53,7 +53,7 @@ export async function generateThumbnailsProgressive(
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export async function generateThumbnailsWithRotationsProgressive(
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arrayBuffer: ArrayBuffer,
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rotations: RotationsMap,
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options: ThumbnailGenerationOptions = {},
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options: ThumbnailGenerationOptions = {}
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): Promise<string[]> {
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return generateThumbnailsInternal(arrayBuffer, rotations, options);
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}
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@@ -61,7 +61,7 @@ export async function generateThumbnailsWithRotationsProgressive(
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async function generateThumbnailsInternal(
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arrayBuffer: ArrayBuffer,
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rotations: RotationsMap,
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options: ThumbnailGenerationOptions = {},
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options: ThumbnailGenerationOptions = {}
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): Promise<string[]> {
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const maxHeight = options.maxHeight ?? 150;
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const maxWidth = options.maxWidth ?? 140;
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@@ -72,15 +72,15 @@ async function generateThumbnailsInternal(
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const loadingTask = pdfjsLib.getDocument({ data: dataCopy });
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const pdf = await loadingTask.promise;
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const thumbs = Array<string>(pdf.numPages).fill("");
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const thumbs = Array<string>(pdf.numPages).fill('');
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const pageNums = options.pageIndices
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? Array.from(
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new Set(
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options.pageIndices
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.filter((pageIndex) => pageIndex >= 0 && pageIndex < pdf.numPages)
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.map((pageIndex) => pageIndex + 1),
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),
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.map((pageIndex) => pageIndex + 1)
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)
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)
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: Array.from({ length: pdf.numPages }, (_, index) => index + 1);
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@@ -98,7 +98,7 @@ async function generateThumbnailsInternal(
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pageIndex,
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rotations,
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maxHeight,
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maxWidth,
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maxWidth
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);
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if (signal?.aborted) return;
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@@ -134,13 +134,13 @@ async function generateThumbnailsInternal(
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async function renderPageThumbnail(
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page: Awaited<
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ReturnType<
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Awaited<ReturnType<typeof pdfjsLib.getDocument>["promise"]>["getPage"]
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Awaited<ReturnType<typeof pdfjsLib.getDocument>['promise']>['getPage']
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>
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>,
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originalIndex: number,
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rotations: RotationsMap,
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maxHeight: number,
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maxWidth: number,
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maxWidth: number
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): Promise<string> {
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const viewport = page.getViewport({ scale: 1 });
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const scaleH = maxHeight / viewport.height;
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@@ -148,15 +148,16 @@ async function renderPageThumbnail(
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const scale = Math.min(scaleH, scaleW);
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const scaledViewport = page.getViewport({ scale });
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const baseCanvas = document.createElement("canvas");
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const baseCtx = baseCanvas.getContext("2d");
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const baseCanvas = document.createElement('canvas');
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const baseCtx = baseCanvas.getContext('2d');
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if (!baseCtx) return "";
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if (!baseCtx) return '';
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baseCanvas.width = scaledViewport.width;
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baseCanvas.height = scaledViewport.height;
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const renderTask = page.render({
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canvas: baseCanvas,
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canvasContext: baseCtx,
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viewport: scaledViewport,
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});
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@@ -167,14 +168,14 @@ async function renderPageThumbnail(
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const rotationDeg = ((rotationDegRaw % 360) + 360) % 360;
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if (rotationDeg === 0) {
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return baseCanvas.toDataURL("image/png");
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return baseCanvas.toDataURL('image/png');
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}
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const rotatedCanvas = document.createElement("canvas");
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const rotatedCtx = rotatedCanvas.getContext("2d");
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const rotatedCanvas = document.createElement('canvas');
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const rotatedCtx = rotatedCanvas.getContext('2d');
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if (!rotatedCtx) {
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return baseCanvas.toDataURL("image/png");
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return baseCanvas.toDataURL('image/png');
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}
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const rad = (rotationDeg * Math.PI) / 180;
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@@ -207,5 +208,5 @@ async function renderPageThumbnail(
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rotatedCtx.drawImage(baseCanvas, 0, 0);
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rotatedCtx.restore();
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return rotatedCanvas.toDataURL("image/png");
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return rotatedCanvas.toDataURL('image/png');
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}
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