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impress/app/assets/javascripts/items/show.js

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JavaScript
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// When the species face picker changes, update and submit the main picker form.
document.addEventListener("change", (e) => {
if (!e.target.matches("species-face-picker")) return;
try {
const mainPickerForm = document.querySelector(
"#item-preview species-color-picker form",
);
const mainSpeciesField = mainPickerForm.querySelector(
"[name='preview[species_id]']",
);
mainSpeciesField.value = e.target.value;
mainPickerForm.requestSubmit(); // `submit` doesn't get captured by Turbo!
} catch (error) {
console.error("Couldn't update species picker: ", error);
}
});
// If the preview frame fails to load, try a full pageload.
document.addEventListener("turbo:frame-missing", (e) => {
if (!e.target.matches("#item-preview")) return;
e.detail.visit(e.detail.response.url);
e.preventDefault();
});
class SpeciesColorPicker extends HTMLElement {
#internals;
constructor() {
super();
this.#internals = this.attachInternals();
}
connectedCallback() {
// Listen for changes to auto-submit the form, then tell CSS about it!
this.addEventListener("change", this.#handleChange);
this.#internals.states.add("auto-loading");
}
#handleChange(e) {
this.querySelector("form").requestSubmit();
}
}
class SpeciesFacePicker extends HTMLElement {
connectedCallback() {
this.addEventListener("click", this.#handleClick);
}
get value() {
return this.querySelector("input[type=radio]:checked")?.value;
}
#handleClick(e) {
if (e.target.matches("input[type=radio]")) {
this.dispatchEvent(new Event("change", { bubbles: true }));
}
}
}
class SpeciesFacePickerOptions extends HTMLElement {
static observedAttributes = ["inert", "aria-hidden"];
connectedCallback() {
// Once this component is loaded, we stop being inert and aria-hidden. We're ready!
this.#activate();
}
attributeChangedCallback() {
// If a Turbo Frame tries to morph us into being inert again, activate again!
// (It's important that the server's HTML always return `inert`, for progressive
// enhancement; and it's important to morph this element, so radio focus state
// is preserved. To thread that needle, we have to monitor and remove!)
this.#activate();
}
#activate() {
this.removeAttribute("inert");
this.removeAttribute("aria-hidden");
}
}
customElements.define("species-color-picker", SpeciesColorPicker);
customElements.define("species-face-picker", SpeciesFacePicker);
customElements.define("species-face-picker-options", SpeciesFacePickerOptions);