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Refactor preset loading

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This commit is contained in:
Jordan Eldredge 2018-10-06 22:55:33 -07:00
parent 587db7a19d
commit bd923e4b8b
1 changed files with 32 additions and 46 deletions
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78
js/components/MilkdropWindow/index.js
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@ -164,61 +164,47 @@ function presetNameFromURL(url) {
}
async function loadInitialPreset() {
let presetUrl = null;
let milkdropPresetUrl = null;
if ("URLSearchParams" in window) {
const params = new URLSearchParams(location.search);
presetUrl = params.get("butterchurnPresetUrl");
milkdropPresetUrl = params.get("milkdropPresetUrl");
if (!("URLSearchParams" in window)) {
return null;
}
if (presetUrl) {
try {
const response = await fetch(presetUrl);
if (!response.ok) {
throw new Error(response.statusText);
}
const responseBody = await response.json();
const presetName = presetNameFromURL(presetUrl);
return { [presetName]: responseBody };
} catch (e) {
console.error(e);
if (e instanceof TypeError) {
// handle URL not existing
alert(`Failed to load MilkDrop preset from ${milkdropPresetUrl}`);
} else if (e instanceof Error) {
// handle URL bad response
alert(`Unable to load MilkDrop preset from ${milkdropPresetUrl}`);
}
return null;
}
const params = new URLSearchParams(location.search);
const butterchurnPresetUrl = params.get("butterchurnPresetUrl");
const milkdropPresetUrl = params.get("milkdropPresetUrl");
if (butterchurnPresetUrl && milkdropPresetUrl) {
alert(
"Unable to handle both milkdropPresetUrl and butterchurnPresetUrl. Please specify one or the other."
);
} else if (butterchurnPresetUrl) {
return fetchPreset(butterchurnPresetUrl, { isButterchurn: true });
} else if (milkdropPresetUrl) {
return fetchPreset(milkdropPresetUrl, { isButterchurn: false });
}
return null;
}
async function fetchPreset(presetUrl, { isButterchurn }) {
const response = await fetch(presetUrl);
if (!response.ok) {
console.error(response.statusText);
alert(`Unable to load MilkDrop preset from ${presetUrl}`);
return null;
}
const presetName = presetNameFromURL(presetUrl);
let preset = null;
if (isButterchurn) {
try {
const response = await fetch(milkdropPresetUrl);
if (!response.ok) {
throw new Error(response.statusText);
}
const fileBlob = await response.blob();
const presetName = presetNameFromURL(milkdropPresetUrl);
return { [presetName]: { file: fileBlob } };
preset = await response.json();
} catch (e) {
console.error(e);
if (e instanceof TypeError) {
// handle URL not existing
alert(`Failed to load MilkDrop preset from ${milkdropPresetUrl}`);
} else if (e instanceof Error) {
// handle URL bad response
alert(`Unable to load MilkDrop preset from ${milkdropPresetUrl}`);
}
alert(`Failed to parse MilkDrop preset from ${presetUrl}`);
return null;
}
} else {
preset = { file: await response.blob() };
}
return null;
return { [presetName]: preset };
}
async function loadInitialDependencies() {