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38ed9e86f8
WSL2/WSLg often provides clipboard images as image/bmp only. Previously this resulted in invalid PNG files being written. Now readClipboardImage() converts unsupported formats to PNG via Photon before returning. Closes #1109 Based on #1112 by @lightningRalf
88 lines
2.9 KiB
TypeScript
88 lines
2.9 KiB
TypeScript
/**
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* Test for BMP to PNG conversion in clipboard image handling.
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* Separate from clipboard-image.test.ts due to different mocking requirements.
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*
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* This tests the fix for WSL2/WSLg where clipboard often provides image/bmp
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* instead of image/png.
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*/
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import { describe, expect, test, vi } from "vitest";
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function createTinyBmp1x1Red24bpp(): Uint8Array {
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// Minimal 1x1 24bpp BMP (BGR + row padding to 4 bytes)
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// File size = 14 (BMP header) + 40 (DIB header) + 4 (pixel row) = 58
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const buffer = Buffer.alloc(58);
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// BITMAPFILEHEADER
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buffer.write("BM", 0, "ascii");
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buffer.writeUInt32LE(buffer.length, 2); // file size
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buffer.writeUInt16LE(0, 6); // reserved1
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buffer.writeUInt16LE(0, 8); // reserved2
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buffer.writeUInt32LE(54, 10); // pixel data offset
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// BITMAPINFOHEADER
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buffer.writeUInt32LE(40, 14); // DIB header size
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buffer.writeInt32LE(1, 18); // width
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buffer.writeInt32LE(1, 22); // height (positive = bottom-up)
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buffer.writeUInt16LE(1, 26); // planes
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buffer.writeUInt16LE(24, 28); // bits per pixel
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buffer.writeUInt32LE(0, 30); // compression (BI_RGB)
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buffer.writeUInt32LE(4, 34); // image size (incl. padding)
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buffer.writeInt32LE(0, 38); // x pixels per meter
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buffer.writeInt32LE(0, 42); // y pixels per meter
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buffer.writeUInt32LE(0, 46); // colors used
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buffer.writeUInt32LE(0, 50); // important colors
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// Pixel data (B, G, R) + 1 byte padding
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buffer[54] = 0x00; // B
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buffer[55] = 0x00; // G
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buffer[56] = 0xff; // R
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buffer[57] = 0x00; // padding
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return new Uint8Array(buffer);
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}
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// Mock wl-paste to return BMP
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vi.mock("child_process", async () => {
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const actual = await vi.importActual<typeof import("child_process")>("child_process");
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return {
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...actual,
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spawnSync: vi.fn((command: string, args: string[]) => {
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if (command === "wl-paste" && args.includes("--list-types")) {
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return { status: 0, stdout: Buffer.from("image/bmp\n"), error: null };
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}
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if (command === "wl-paste" && args.includes("image/bmp")) {
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return { status: 0, stdout: Buffer.from(createTinyBmp1x1Red24bpp()), error: null };
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}
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return { status: 1, stdout: Buffer.alloc(0), error: null };
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}),
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};
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});
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// Mock the native clipboard (not used in Wayland path, but needs to be mocked)
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vi.mock("@mariozechner/clipboard", () => ({
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default: {
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hasImage: vi.fn(() => false),
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getImageBinary: vi.fn(() => Promise.resolve(null)),
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},
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}));
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describe("readClipboardImage BMP conversion", () => {
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test("converts BMP to PNG on Wayland/WSLg", async () => {
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const { readClipboardImage } = await import("../src/utils/clipboard-image.js");
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// Simulate Wayland session (WSLg)
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const image = await readClipboardImage({
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env: { WAYLAND_DISPLAY: "wayland-0" },
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platform: "linux",
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});
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expect(image).not.toBeNull();
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expect(image!.mimeType).toBe("image/png");
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// Verify PNG magic bytes
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expect(image!.bytes[0]).toBe(0x89);
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expect(image!.bytes[1]).toBe(0x50); // P
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expect(image!.bytes[2]).toBe(0x4e); // N
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expect(image!.bytes[3]).toBe(0x47); // G
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});
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});
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