55 lines
No EOL
1.7 KiB
TypeScript
55 lines
No EOL
1.7 KiB
TypeScript
export class TimelineFilter {
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public name: string = "";
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public filter: string = "";
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}
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export class TimelineFilterElement extends HTMLElement {
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static observedAttributes = [ "data-filters", "data-target", "data-latest" ];
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private _filters: TimelineFilter[] = [];
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private _target: string = "";
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constructor() {
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super();
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this.innerHTML = "<select class='filter_select'></select>"
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}
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connectedCallback() {
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this._target = this.getAttribute("data-target") ?? "";
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this._filters = (this.getAttribute("data-filters") ?? "").split("/").map(f=>{
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const ff = f.split("::");
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return <TimelineFilter>{ name: ff[0], filter: ff[1] };
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});
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let html = "<select class='filter_select'>";
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html += this._filters.reduce((self: string, f: TimelineFilter)=>{
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self += `<option value='${f.filter}'>${f.name}</option>`;
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return self;
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}, "");
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html += "</select>";
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this.innerHTML = html;
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const select = this.querySelector(".filter_select");
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if (select) {
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select.addEventListener("change", this.onChanges.bind(this));
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}
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}
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onChanges() {
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const select = this.querySelector(".filter_select") as HTMLSelectElement;
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// change target's target!
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const target = document.getElementById(this._target);
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if (target) {
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target.setAttribute("data-target", select?.options[select.selectedIndex].value)
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}
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}
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attributeChangedCallback(attr: string, prev: string, next: string) {
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switch (attr) {
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case "data-latest":
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const select = this.querySelector(".filter_select") as HTMLSelectElement;
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select.selectedIndex = this._filters.findIndex(f=>f.name == next);
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break;
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}
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}
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} |