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Remove blob URL dead code and clean up more frontend code (#2199)

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This commit is contained in:
Keavon Chambers
2025-01-14 13:08:47 -08:00
committed by GitHub
parent 1e62af88cd
commit 9ad6c31483
56 changed files with 107 additions and 247 deletions
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frontend/src/utility-functions/rasterization.ts
+1 -18
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@@ -1,5 +1,3 @@
import { replaceBlobURLsWithBase64 } from "@graphite/utility-functions/files";
// Rasterize the string of an SVG document at a given width and height and return the canvas it was drawn onto during the rasterization process
export async function rasterizeSVGCanvas(svg: string, width: number, height: number, backgroundColor?: string): Promise<HTMLCanvasElement> {
// A canvas to render our SVG to in order to get a raster image
@@ -15,11 +13,8 @@ export async function rasterizeSVGCanvas(svg: string, width: number, height: num
context.fillRect(0, 0, width, height);
}
// This SVG rasterization scheme has the limitation that it cannot access blob URLs, so they must be inlined to base64 URLs
const svgWithBase64Images = await replaceBlobURLsWithBase64(svg);
// Create a blob URL for our SVG
const svgBlob = new Blob([svgWithBase64Images], { type: "image/svg+xml;charset=utf-8" });
const svgBlob = new Blob([svg], { type: "image/svg+xml;charset=utf-8" });
const url = URL.createObjectURL(svgBlob);
// Load the Image from the URL and wait until it's done
@@ -65,18 +60,6 @@ export async function extractPixelData(imageData: ImageBitmapSource): Promise<Im
return canvasContext.getImageData(0, 0, width, height);
}
/// Convert an image source (e.g. BMP document) into a PNG blob
export async function imageToPNG(imageData: ImageBitmapSource): Promise<Blob> {
const canvasContext = await imageToCanvasContext(imageData);
return new Promise((resolve, reject) => {
canvasContext.canvas.toBlob((pngBlob) => {
if (pngBlob) resolve(pngBlob);
else reject("Converting canvas to blob data failed in imageToPNG()");
}, "image/png");
});
}
export async function imageToCanvasContext(imageData: ImageBitmapSource): Promise<CanvasRenderingContext2D> {
// Special handling to rasterize an SVG file
let svgImageData;