Add styling and interactivity.

src/components/timeline.ts

@@ -13,11 +13,13 @@ import { customElement, property } from 'lit/decorators.js';
 import { createRef, ref, Ref } from 'lit/directives/ref';
 
 import { BrowseMediaUtil } from '../browse-media-util';
-import { CameraConfig, ExtendedHomeAssistant } from '../types';
+import { CameraConfig, ExtendedHomeAssistant, FrigateBrowseMediaSource } from '../types';
 import { View } from '../view';
+import { dispatchFrigateCardEvent } from '../common.js';
 import { renderProgressIndicator } from './message';
 
 import timelineStyle from '../scss/timeline.scss';
+import timelineEventStyle from '../scss/timeline-event.scss';
 
 interface FrigateCardTimelineData {
   id: string;
@@ -25,6 +27,40 @@ interface FrigateCardTimelineData {
   start: number;
 }
 
+@customElement('frigate-card-timeline-event')
+export class FrigateCardTimelineEvent extends LitElement {
+  @property({ attribute: true })
+  protected media_id?: string;
+
+  @property({ attribute: true })
+  protected thumbnail?: string;
+
+  @property({ attribute: true })
+  protected label?: string;
+
+  protected render(): TemplateResult | void {
+    if (!this.thumbnail) {
+      return;
+    }
+
+    return html`<img
+      @click=${() => {
+        // The view is not accessible from here, since this element is created
+        // from a string (see _buildEventContent below), so instead we emit an
+        // intermediate event that is caught by the timeline.
+        dispatchFrigateCardEvent(this, 'timeline-select', this.media_id);
+      }}
+      src="${this.thumbnail}"
+      title="${this.label || ''}"
+      aria-label="${this.label || ''}"
+    />`;
+  }
+
+  static get styles(): CSSResultGroup {
+    return unsafeCSS(timelineEventStyle);
+  }
+}
+
 @customElement('frigate-card-timeline')
 export class FrigateCardTimeline extends LitElement {
   @property({ attribute: false })
@@ -38,6 +74,7 @@ export class FrigateCardTimeline extends LitElement {
 
   protected _timelineRef: Ref<HTMLElement> = createRef();
   protected _timeline?: Timeline;
+  protected _boundTimelineSelectHandler = this._timelineSelectHandler.bind(this);
 
   /**
    * Master render method.
@@ -70,6 +107,53 @@ export class FrigateCardTimeline extends LitElement {
     return html` <div id="timeline" ${ref(this._timelineRef)}></div>`;
   }
 
+  /**
+   * Component connected callback.
+   */
+  connectedCallback(): void {
+    super.connectedCallback();
+    document.addEventListener(
+      'frigate-card:timeline-select',
+      this._boundTimelineSelectHandler,
+    );
+  }
+
+  /**
+   * Component disconnected callback.
+   */
+  disconnectedCallback(): void {
+    document.removeEventListener(
+      'frigate-card:timeline-select',
+      this._boundTimelineSelectHandler,
+    );
+    super.disconnectedCallback();
+  }
+
+  protected _timelineSelectHandler(ev: Event): void {
+    const id = (ev as CustomEvent<string>).detail;
+    const index =
+      this.view?.target?.children?.findIndex((item) => item.media_content_id == id) ??
+      -1;
+    if (index >= 0) {
+      this.view
+        ?.evolve({
+          view: 'clip',
+          childIndex: index,
+        })
+        .dispatchChangeEvent(this);
+    }
+  }
+
+  protected _buildEventContent(source: FrigateBrowseMediaSource): string {
+    return `
+      <frigate-card-timeline-event
+        media_id=${source.media_content_id}
+        thumbnail="${source.thumbnail}"
+        label="${source.title}"
+      >
+      </frigate-card-timeline-event>`;
+  }
+
   protected _buildDataset(): DataSet<FrigateCardTimelineData> {
     const items: FrigateCardTimelineData[] = [];
 
@@ -77,8 +161,9 @@ export class FrigateCardTimeline extends LitElement {
       if (child.frigate) {
         const item = {
           id: child.media_content_id,
-          content: child.frigate.event.id,
+          content: this._buildEventContent(child),
           start: child.frigate.event.start_time * 1000,
+          selectable: false,
         };
         if (child.frigate.event.end_time) {
           //item['end'] = child.frigate.event.end_time * 1000;
@@ -94,6 +179,18 @@ export class FrigateCardTimeline extends LitElement {
     // Configuration for the Timeline
     const options = {
       minHeight: '300px',
+      margin: {
+        item: 75 + 10,
+        axis: 75 + 10,
+      },
+      xss: {
+        disabled: false,
+        filterOptions: {
+          whiteList: {
+            'frigate-card-timeline-event': ['thumbnail', 'label', 'media_id'],
+          },
+        },
+      },
     };
 
     // Create a Timeline