Convert timeline to bars rather than icons.

package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "@cycjimmy/jsmpeg-player": "^5.1.1",
     "@egjs/hammerjs": "^2.0.17",
-    "@lit-labs/task": "^1.0.0",
+    "@lit-labs/task": "^1.1.1",
     "@material/image-list": "^13.0.0",
     "@material/mwc-menu": "^0.25.3",
     "@material/rtl": "^13.0.0",

src/browse-media-util.ts

@@ -101,7 +101,9 @@ export class BrowseMediaUtil {
         params.clientId,
         'event-search',
         params.mediaType,
-        '', // Name/Title to render (not necessary here)
+
+        // If the name field ends in '.all' the integration will return up to 10K events.
+        params.unlimited ? '.all' : '',
         params.after ? String(Math.floor(params.after)) : '',
         params.before ? String(Math.ceil(params.before)) : '',
         params.cameraName,

src/card.ts

@@ -1276,6 +1276,7 @@ export class FrigateCard extends LitElement {
             .hass=${this._hass}
             .view=${this._view}
             .cameraConfig=${cameraConfig}
+            .cameras=${this._cameras}
             .timelineConfig=${this._getConfig().timeline}
           >
           </frigate-card-timeline>`

src/components/timeline.ts

@@ -8,9 +8,14 @@ import {
 } from 'lit';
 import { DataSet } from 'vis-data/esnext';
 import { HomeAssistant } from 'custom-card-helpers';
-import { Timeline, TimelineOptions, TimelineOptionsCluster } from 'vis-timeline/esnext';
+import {
+  DataGroupCollectionType,
+  Timeline,
+  TimelineOptions,
+  TimelineOptionsCluster,
+} from 'vis-timeline/esnext';
 import { customElement, property, state } from 'lit/decorators.js';
-import { createRef, ref, Ref } from 'lit/directives/ref';
+import { createRef, ref, Ref } from 'lit/directives/ref.js';
 
 import { BrowseMediaUtil } from '../browse-media-util';
 import {
@@ -21,12 +26,20 @@ import {
   frigateCardConfigDefaults,
 } from '../types';
 import { View } from '../view';
-import { contentsChanged, dispatchFrigateCardEvent } from '../common.js';
-import { renderProgressIndicator } from './message';
+import {
+  contentsChanged,
+  dispatchErrorMessageEvent,
+  dispatchFrigateCardEvent,
+  getCameraTitle,
+} from '../common.js';
 
 import timelineStyle from '../scss/timeline.scss';
 import timelineEventStyle from '../scss/timeline-event.scss';
 
+interface FrigateCardGroupData {
+  id: string;
+  content: string;
+}
 interface FrigateCardTimelineData {
   id: string;
   content: string;
@@ -84,6 +97,95 @@ export class FrigateCardTimelineEvent extends LitElement {
   }
 }
 
+class TimelineEventManager {
+  protected _dataset = new DataSet<FrigateCardTimelineData>();
+
+  protected _contentCallback?: (FrigateBrowseMediaSource) => string;
+  protected _tooltipCallback?: (FrigateBrowseMediaSource) => string;
+
+  constructor(params: {
+    contentCallback?: (source: FrigateBrowseMediaSource) => string;
+    tooltipCallback?: (source: FrigateBrowseMediaSource) => string;
+  }) {
+    this._contentCallback = params.contentCallback;
+    this._tooltipCallback = params.tooltipCallback;
+  }
+
+  get dataset(): DataSet<FrigateCardTimelineData> {
+    return this._dataset;
+  }
+
+  public isEmpty(): boolean {
+    return this._dataset.length === 0;
+  }
+
+  public clear(): void {
+    this._dataset.clear();
+  }
+
+  protected _addMediaSource(camera: string, target: FrigateBrowseMediaSource): void {
+    const items: FrigateCardTimelineData[] = [];
+    target.children?.forEach((child) => {
+      if (child.frigate) {
+        const item = {
+          id: child.media_content_id,
+          group: camera,
+          content: this._contentCallback?.(child) ?? '',
+          title: this._tooltipCallback?.(child) ?? '',
+          start: child.frigate.event.start_time * 1000,
+        };
+        if (child.frigate.event.end_time) {
+          item['end'] = child.frigate.event.end_time * 1000;
+          item['type'] = 'range';
+        } else {
+          item['type'] = 'point';
+        }
+        items.push(item);
+      }
+    });
+    this._dataset.update(items);
+  }
+
+  public async fetchEvents(
+    node: HTMLElement,
+    hass: HomeAssistant & ExtendedHomeAssistant,
+    cameras: Map<string, CameraConfig>,
+    start: Date,
+    end: Date,
+  ): Promise<void> {
+    console.info(`fetchEvents: ${start} -> ${end}`);
+
+    // const output = new Map<string, FrigateBrowseMediaSource>();
+    const fetchCameraEvents = async (camera: string): Promise<void> => {
+      const cameraConfig = cameras.get(camera);
+      if (!cameraConfig) {
+        return;
+      }
+      const browseMediaQueryParameters = BrowseMediaUtil.getBrowseMediaQueryParameters(
+        'clips',
+        cameraConfig,
+      );
+      if (!browseMediaQueryParameters) {
+        return;
+      }
+
+      try {
+        this._addMediaSource(
+          camera,
+          await BrowseMediaUtil.browseMediaQuery(hass, {
+            ...browseMediaQueryParameters,
+            unlimited: true,
+          }),
+        );
+      } catch (e) {
+        return dispatchErrorMessageEvent(node, (e as Error).message);
+      }
+    };
+
+    await Promise.all(Array.from(cameras.keys()).map(fetchCameraEvents.bind(this)));
+  }
+}
+
 @customElement('frigate-card-timeline')
 export class FrigateCardTimeline extends LitElement {
   @property({ attribute: false })
@@ -93,10 +195,10 @@ export class FrigateCardTimeline extends LitElement {
   protected view?: Readonly<View>;
 
   @property({ attribute: false })
-  protected cameraConfig?: CameraConfig;
+  protected cameras?: Map<string, CameraConfig>;
 
   /**
-   * Set the Home Assistant object.
+   * Set the timeline configuration.
    */
   set timelineConfig(timelineConfig: TimelineConfig) {
     this._timelineConfig = timelineConfig;
@@ -111,86 +213,17 @@ export class FrigateCardTimeline extends LitElement {
 
   protected _timelineRef: Ref<HTMLElement> = createRef();
   protected _timeline?: Timeline;
-  protected _boundTimelineSelectHandler = this._timelineSelectHandler.bind(this);
 
-  /**
-   * Master render method.
-   * @returns A rendered template.
-   */
-  protected render(): TemplateResult | void {
-    if (!this.hass || !this.view || !this.cameraConfig) {
-      return;
-    }
-
-    if (!this.view.target) {
-      const browseMediaQueryParameters =
-        BrowseMediaUtil.getBrowseMediaQueryParametersOrDispatchError(
-          this,
-          this.view,
-          this.cameraConfig,
-        );
-      if (!browseMediaQueryParameters) {
-        return;
-      }
-
-      BrowseMediaUtil.fetchLatestMediaAndDispatchViewChange(
-        this,
-        this.hass,
-        this.view,
-        browseMediaQueryParameters,
-      );
-      return renderProgressIndicator();
-    }
-    return html` <div class="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();
-  }
-
-  /**
-   * Called when an item on the timeline is selected.
-   * @param ev The click event.
-   */
-  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 _events = new TimelineEventManager({
+    tooltipCallback: this._generateTooltip.bind(this),
+  });
 
   /**
    * Build the content of a single event on the timeline.
    * @param source The FrigateBrowseMediaSource object for this event.
    * @returns A string to include on the timeline.
    */
-  protected _buildEventContent(source: FrigateBrowseMediaSource): string {
+  protected _generateTooltip(source: FrigateBrowseMediaSource): string {
     return `
       <frigate-card-timeline-event
         media_id=${source.media_content_id}
@@ -204,28 +237,83 @@ export class FrigateCardTimeline extends LitElement {
       </frigate-card-timeline-event>`;
   }
 
+  /**
+   * Master render method.
+   * @returns A rendered template.
+   */
+  protected render(): TemplateResult | void {
+    if (!this.hass || !this.view) {
+      return;
+    }
+    return html` <div class="timeline" ${ref(this._timelineRef)}></div>`;
+  }
+
+  /**
+   * Component connected callback.
+   */
+  connectedCallback(): void {
+    super.connectedCallback();
+  }
+
+  /**
+   * Component disconnected callback.
+   */
+  disconnectedCallback(): void {
+    super.disconnectedCallback();
+  }
+
+  protected _timelineRangeHandler(properties: {
+    start: Date;
+    end: Date;
+    byUser: boolean;
+    event: Event;
+  }): void {
+    console.info(
+      `Range changed: ${properties.start} -> ${properties.end} [${this._events.dataset.length}]`,
+    );
+    if (this.hass && this.cameras) {
+      // This is not performant in that it refetches all events in the time
+      // range, when some/all may already be fetched. A more optimal approach
+      // would be to only fetch events in time windows that haven't already been
+      // fetched PLUS events that did not previously have an end_time. That's
+      // not trivial to implement, and it's not yet clear it's worth the extra
+      // complexity.
+      this._events.fetchEvents(
+        this,
+        this.hass,
+        this.cameras,
+        properties.start,
+        properties.end,
+      );
+    }
+  }
+
+  /**
+   * Called when an object on the timeline is selected.
+   * @param data The data about the selection.
+   * @returns
+   */
+  protected _timelineSelectHandler(data: { items: string[]; event: Event }): void {
+    if (data.items.length <= 0) {
+      return;
+    }
+
+    // TODO: Make a parent, attach a select bunch of children to it and evolve the view.
+  }
+
   /**
    * Build the visjs dataset to render on the timeline.
    * @returns The dataset.
    */
-  protected _buildDataset(): DataSet<FrigateCardTimelineData> {
-    const items: FrigateCardTimelineData[] = [];
-
-    this.view?.target?.children?.forEach((child) => {
-      if (child.frigate) {
-        const item = {
-          id: child.media_content_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;
-        }
-        items.push(item);
-      }
+  protected _getGroups(): DataGroupCollectionType {
+    const groups: FrigateCardGroupData[] = [];
+    this.cameras?.forEach((cameraConfig, camera) => {
+      groups.push({
+        id: camera,
+        content: getCameraTitle(this.hass, cameraConfig),
       });
-    return new DataSet(items);
+    });
+    return new DataSet(groups);
   }
 
   /**
@@ -239,12 +327,12 @@ export class FrigateCardTimeline extends LitElement {
     const thumbnailConfig =
       this._timelineConfig?.controls.thumbnails ??
       frigateCardConfigDefaults.timeline.controls.thumbnails;
-    const gap = 5;
 
     // Configuration for the Timeline, see:
     // https://visjs.github.io/vis-timeline/docs/timeline/#Configuration_Options
     this._timelineOptions = {
-      cluster: thumbnailConfig.clustering_threshold > 0
+      cluster:
+        thumbnailConfig.clustering_threshold > 0
           ? {
               showStipes: true,
               // It would be better to automatically calculate `maxItems` from the
@@ -257,13 +345,18 @@ export class FrigateCardTimeline extends LitElement {
               // created, also does not appear to work as expected.
               maxItems: thumbnailConfig.clustering_threshold,
             }
-        : false as TimelineOptionsCluster,
+          : (false as TimelineOptionsCluster),
       minHeight: '100%',
       maxHeight: '100%',
-      margin: {
-        item: thumbnailConfig.size_pixels - thumbnailConfig.overlap_pixels + gap,
-        axis: thumbnailConfig.size_pixels + gap,
+      tooltip: {
+        followMouse: true,
+        overflowMethod: 'cap',
       },
+      zoomMax: 31 * 24 * 60 * 60 * 1000,
+      zoomMin: 1 * 1000,
+      start: this._getYesterday(),
+      end: this._getToday(),
+      groupHeightMode: 'fixed',
       xss: {
         disabled: false,
         filterOptions: {
@@ -275,29 +368,85 @@ export class FrigateCardTimeline extends LitElement {
               'thumbnail_size',
             ],
             div: ['title'],
+            span: ['style'],
           },
         },
       },
     };
   }
 
+  /**
+   * Get today date object.
+   * @returns A date object for today.
+   */
+  protected _getToday(): Date {
+    return new Date();
+  }
+
+  /**
+   * Get yesterday date object.
+   * @returns A date object for yesterday.
+   */
+  protected _getYesterday(): Date {
+    const yesterday = new Date();
+    yesterday.setDate(this._getToday().getDate() - 1);
+    return yesterday;
+  }
+
+  /**
+   * Determine if the component should be updated.
+   * @param _changedProps The changed properties.
+   * @returns
+   */
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  protected shouldUpdate(_changedProps: PropertyValues): boolean {
+    return !!this.hass && !!this.cameras && this.cameras.size > 0;
+  }
+
+  /**
+   * Called on the first update.
+   * @param changedProps The changed properties.
+   */
+  protected firstUpdated(changedProps: PropertyValues): void {
+    super.firstUpdated(changedProps);
+
+    if (changedProps.has('cameras')) {
+      this._events.clear();
+    }
+
+    if (this._events.isEmpty() && this.hass && this.cameras) {
+      // Fetch an initial 1-day worth of events.
+      this._events.fetchEvents(
+        this,
+        this.hass,
+        this.cameras,
+        this._getToday(),
+        this._getYesterday(),
+      );
+    }
+  }
+
   /**
    * Called when the component is updated.
    * @param changedProps The changed properties if any.
    */
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   protected updated(changedProperties: PropertyValues): void {
     super.updated(changedProperties);
 
     if (this._timelineRef.value) {
       if (this._timeline) {
         this._timeline.destroy();
+        this._timeline = undefined;
       }
+
       this._timeline = new Timeline(
         this._timelineRef.value,
-        this._buildDataset(),
+        this._events.dataset,
+        this._getGroups(),
         this._timelineOptions,
       );
+      this._timeline.on('select', this._timelineSelectHandler.bind(this));
+      this._timeline.on('rangechanged', this._timelineRangeHandler.bind(this));
     }
   }
 

src/scss/timeline-event.scss

@@ -4,17 +4,13 @@
   height: 100%;
 
   --frigate-card-timeline-thumbnail-size: 75px;
+
+  border-radius: 5px;
+  overflow: hidden;
 }
 
 img {
   width: var(--frigate-card-timeline-thumbnail-size);
   height: var(--frigate-card-timeline-thumbnail-size);
   display: block;
-  border-radius: 5px;
-  transition: transform 0.2s linear;
-  border: 1px solid black;
-}
-
-img:hover {
-  transform: scale(1.04);
 }

src/scss/timeline.scss

@@ -17,12 +17,19 @@ div.timeline {
 }
 
 .vis-timeline {
-  border: hidden;
+  border: none;
+}
+
+.vis-labelset .vis-label {
+  // Group labels.
+  color: var(--primary-text-color);
 }
 
 .vis-item {
   border-color: var(--primary-color);
   background: none;
+  color: var(--primary-text-color);
+  background-color: var(--primary-color);
 }
 
 .vis-item:hover {
@@ -31,7 +38,7 @@ div.timeline {
 }
 
 .vis-item.vis-box {
-  border-style: hidden;
+  border: none;
 }
 
 .vis-item .vis-item-content {
@@ -39,13 +46,14 @@ div.timeline {
 }
 
 .vis-item.vis-cluster {
-  width: 30px;
-  height: 30px;
   border-style: dotted;
-  border-radius: 50%;
-  padding: 5px;
-
   color: var(--primary-text-color);
   background-color: var(--primary-background-color);
-  box-shadow: 0px 0px 20px 5px var(--primary-color);
+  box-shadow: 0px 0px 5px 1px var(--primary-color);
+}
+
+div.vis-tooltip {
+  padding: 0px;
+  background-color: unset;
+  border: none;
 }

src/types.ts

@@ -868,6 +868,7 @@ export interface BrowseMediaQueryParameters {
   zone?: string;
   before?: number;
   after?: number;
+  unlimited?: boolean;
 }
 
 export interface BrowseMediaNeighbors {