53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
import init, {init_pteropus} from '../pkg/pteropus.js';
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function fileDragOverHandler(event) {
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event.preventDefault();
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}
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async function run() {
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await init();
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let pteropus = await init_pteropus();
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let test_file_data = null;
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let needs_resize = true;
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let mainCanvas = document.getElementById("pteropus-canvas");
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mainCanvas.addEventListener("drop", async (event) => {
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event.preventDefault();
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test_file_data = event.dataTransfer.files[0]
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});
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mainCanvas.addEventListener("dragover", fileDragOverHandler);
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const resizeObserver = new ResizeObserver((entries) => {
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needs_resize = true;
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});
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resizeObserver.observe(mainCanvas);
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let fileUploadButton = document.getElementById("file-upload-file-input");
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fileUploadButton.addEventListener("change", () => {
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const files = fileUploadButton.files;
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if(files.length > 0) {
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test_file_data = files[0]
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}
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});
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while(true)
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{
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await pteropus.render();
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// TODO: I really want to do this asynchronously, with the drop
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// event listener calling pteropus_load_file directly, but I need
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// to figure out how to get that to work.
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if(test_file_data) {
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await pteropus.load_file(test_file_data);
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test_file_data = null
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}
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if(needs_resize) {
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await pteropus.on_resize();
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needs_resize = false;
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}
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await new Promise(requestAnimationFrame);
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}
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}
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run();
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