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feat(api): use dynamic imports with specified paths #30

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Merged
merged 2 commits into from
Aug 11, 2025
Merged

feat(api): use dynamic imports with specified paths #30

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feat(api): replace static imports to dynamic imports with specified p…
mori2003 Aug 11, 2025
3b318e9
Merge branch 'main' into feat/dynamic-import-paths
mori2003 Aug 11, 2025
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95 changes: 55 additions & 40 deletions src/api.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -27,37 +27,6 @@
// [1.] Emscripten Module Interface
// -------------------------------------------------------------------------------------------------

// @ts-ignore
import { MainExport as WebGL_TT } from "./jsimgui-webgl-tt.js"; // @ts-ignore
import { MainExport as WebGL_TT_DEMOS } from "./jsimgui-webgl-tt-demos.js"; // @ts-ignore
import { MainExport as WebGL_FT } from "./jsimgui-webgl-ft.js"; // @ts-ignore
import { MainExport as WebGL_FT_DEMOS } from "./jsimgui-webgl-ft-demos.js"; // @ts-ignore

import { MainExport as WebGL2_TT } from "./jsimgui-webgl-tt.js"; // @ts-ignore
import { MainExport as WebGL2_TT_DEMOS } from "./jsimgui-webgl-tt-demos.js"; // @ts-ignore
import { MainExport as WebGL2_FT } from "./jsimgui-webgl-ft.js"; // @ts-ignore
import { MainExport as WebGL2_FT_DEMOS } from "./jsimgui-webgl-ft-demos.js"; // @ts-ignore

import { MainExport as WebGPU_TT } from "./jsimgui-webgpu-tt.js"; // @ts-ignore
import { MainExport as WebGPU_TT_DEMOS } from "./jsimgui-webgpu-tt-demos.js"; // @ts-ignore
import { MainExport as WebGPU_FT } from "./jsimgui-webgpu-ft.js"; // @ts-ignore
import { MainExport as WebGPU_FT_DEMOS } from "./jsimgui-webgpu-ft-demos.js"; // @ts-ignore

const IMPORT_MAP = {
"jsimgui-webgl-tt": WebGL_TT,
"jsimgui-webgl-tt-demos": WebGL_TT_DEMOS,
"jsimgui-webgl-ft": WebGL_FT,
"jsimgui-webgl-ft-demos": WebGL_FT_DEMOS,
"jsimgui-webgl2-tt": WebGL2_TT,
"jsimgui-webgl2-tt-demos": WebGL2_TT_DEMOS,
"jsimgui-webgl2-ft": WebGL2_FT,
"jsimgui-webgl2-ft-demos": WebGL2_FT_DEMOS,
"jsimgui-webgpu-tt": WebGPU_TT,
"jsimgui-webgpu-tt-demos": WebGPU_TT_DEMOS,
"jsimgui-webgpu-ft": WebGPU_FT,
"jsimgui-webgpu-ft-demos": WebGPU_FT_DEMOS,
} as const;

/**
* Object wrapping the exported Emscripten module. Used to access any of the exported functions
* or runtime methods.
Expand All @@ -78,16 +47,65 @@ const Mod = {
* @param loaderPath Path to the Emscripten module loader (e.g. `jsimgui-webgl-tt.js`).
* @throws {Error} Throws error if the module is already initialized.
*/
async init(loaderPath: string) {
async init(loaderPath: string, customLoaderPath: string | undefined) {
if (Mod._export) {
throw new Error("jsimgui: Emscripten module is already initialized.");
}

let MainExport: any;
if (loaderPath && loaderPath in IMPORT_MAP) {
MainExport = IMPORT_MAP[loaderPath as keyof typeof IMPORT_MAP];
if (customLoaderPath) {
MainExport = await import(`${customLoaderPath}`);
} else {
MainExport = await import(loaderPath);
switch (loaderPath) {
case "./jsimgui-webgl-tt.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl-tt.js");
break;
case "./jsimgui-webgl-tt-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl-tt-demos.js");
break;
case "./jsimgui-webgl-ft.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl-ft.js");
break;
case "./jsimgui-webgl-ft-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl-ft-demos.js");
break;
case "./jsimgui-webgl2-tt.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl2-tt.js");
break;
case "./jsimgui-webgl2-tt-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl2-tt-demos.js");
break;
case "./jsimgui-webgl2-ft.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl2-ft.js");
break;
case "./jsimgui-webgl2-ft-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgl2-ft-demos.js");
break;
case "./jsimgui-webgpu-tt.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgpu-tt.js");
break;
case "./jsimgui-webgpu-tt-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgpu-tt-demos.js");
break;
case "./jsimgui-webgpu-ft.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgpu-ft.js");
break;
case "./jsimgui-webgpu-ft-demos.js":
// @ts-ignore
MainExport = await import("./jsimgui-webgpu-ft-demos.js");
break;
}
}

const module = await MainExport.default();
Expand Down Expand Up @@ -1037,10 +1055,7 @@ const getUsedLoaderPath = (
backend: "webgl" | "webgl2" | "webgpu",
fontLoader: "truetype" | "freetype",
enableDemos: boolean,
loaderPath?: string,
): string => {
if (loaderPath) return loaderPath;

const fontLoaderShort = fontLoader === "truetype" ? "tt" : "ft";
return `./jsimgui-${backend}-${fontLoaderShort}${enableDemos ? "-demos" : ""}.js`;
};
Expand Down Expand Up @@ -1204,8 +1219,8 @@ export const ImGuiImplWeb = {
const usedBackend = getUsedBackend(canvas, device, backend);
State.backend = usedBackend;

const usedLoaderPath = getUsedLoaderPath(usedBackend, fontLoader, enableDemos, loaderPath);
await Mod.init(usedLoaderPath);
const usedLoaderPath = getUsedLoaderPath(usedBackend, fontLoader, enableDemos);
await Mod.init(usedLoaderPath, loaderPath);

Mod.export.FS.mount(Mod.export.MEMFS, { root: "." }, ".");

Expand Down