Add support for fetching thumnails separately

src/components/gallery.ts

@@ -1,5 +1,4 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-import { HomeAssistant } from 'custom-card-helpers';
 import {
   css,
   CSSResultGroup,
@@ -13,6 +12,7 @@ import { customElement, property } from 'lit/decorators.js';
 import galleryStyle from '../scss/gallery.scss';
 import {
   CameraConfig,
+  ExtendedHomeAssistant,
   frigateCardConfigDefaults,
   GalleryConfig,
   THUMBNAIL_WIDTH_MAX,
@@ -31,7 +31,7 @@ import { THUMBNAIL_DETAILS_WIDTH_MIN } from './thumbnail.js';
 @customElement('frigate-card-gallery')
 export class FrigateCardGallery extends LitElement {
   @property({ attribute: false })
-  public hass?: HomeAssistant;
+  public hass?: ExtendedHomeAssistant;
 
   @property({ attribute: false })
   public view?: Readonly<View>;
@@ -109,7 +109,7 @@ export class FrigateCardGallery extends LitElement {
 @customElement('frigate-card-gallery-core')
 export class FrigateCardGalleryCore extends LitElement {
   @property({ attribute: false })
-  public hass?: HomeAssistant;
+  public hass?: ExtendedHomeAssistant;
 
   @property({ attribute: false })
   public view?: Readonly<View>;

src/components/live.ts

@@ -138,6 +138,19 @@ export class FrigateCardLive extends LitElement {
     }
   }
 
+  /**
+   * Determine whether the element should be updated.
+   * @param _changedProps The changed properties if any.
+   * @returns `true` if the element should be updated.
+   */  
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  protected shouldUpdate(_changedProps: PropertyValues): boolean {
+    // Don't process updates if it's in the background and a message was
+    // received (otherwise an error message thrown by the background live
+    // component may continually be re-spammed hitting performance).
+    return !this._inBackground || !this._messageReceivedPostRender;
+  }
+
   /**
    * Component connected callback.
    */

src/components/surround-thumbnails.ts

@@ -1,4 +1,3 @@
-import { HomeAssistant } from 'custom-card-helpers';
 import {
   CSSResultGroup,
   html,
@@ -12,6 +11,7 @@ import surroundThumbnailsStyle from '../scss/surround.scss';
 import {
   BrowseMediaQueryParameters,
   CameraConfig,
+  ExtendedHomeAssistant,
   FrigateBrowseMediaSource,
   FrigateCardError,
   FrigateCardView,
@@ -30,7 +30,7 @@ import { ThumbnailCarouselTap } from './thumbnail-carousel.js';
 @customElement('frigate-card-surround-thumbnails')
 export class FrigateCardSurround extends LitElement {
   @property({ attribute: false })
-  public hass?: HomeAssistant;
+  public hass?: ExtendedHomeAssistant;
 
   @property({ attribute: false })
   public view?: Readonly<View>;

src/components/thumbnail-carousel.ts

@@ -1,4 +1,3 @@
-import { HomeAssistant } from 'custom-card-helpers';
 import { EmblaOptionsType, EmblaPluginType } from 'embla-carousel';
 import { WheelGesturesPlugin } from 'embla-carousel-wheel-gestures';
 import {
@@ -15,6 +14,7 @@ import { createRef, ref, Ref } from 'lit/directives/ref.js';
 import thumbnailCarouselStyle from '../scss/thumbnail-carousel.scss';
 import {
   CameraConfig,
+  ExtendedHomeAssistant,
   FrigateBrowseMediaSource,
   ThumbnailsControlConfig,
 } from '../types.js';
@@ -36,7 +36,7 @@ export interface ThumbnailCarouselTap {
 @customElement('frigate-card-thumbnail-carousel')
 export class FrigateCardThumbnailCarousel extends LitElement {
   @property({ attribute: false })
-  public hass?: HomeAssistant;
+  public hass?: ExtendedHomeAssistant;
 
   @property({ attribute: false })
   public view?: Readonly<View>;

src/components/thumbnail.ts

@@ -1,4 +1,4 @@
-import { HomeAssistant } from 'custom-card-helpers';
+import { Task } from '@lit-labs/task/task.js';
 import { format, fromUnixTime } from 'date-fns';
 import { CSSResult, html, LitElement, TemplateResult, unsafeCSS } from 'lit';
 import { customElement, property } from 'lit/decorators.js';
@@ -9,6 +9,7 @@ import thumbnailFeatureEventStyle from '../scss/thumbnail-feature-event.scss';
 import thumbnailFeatureRecordingStyle from '../scss/thumbnail-feature-recording.scss';
 import thumbnailStyle from '../scss/thumbnail.scss';
 import type {
+  ExtendedHomeAssistant,
   FrigateBrowseMediaSource,
   FrigateEvent,
   FrigateRecording,
@@ -17,7 +18,9 @@ import { stopEventFromActivatingCardWideActions } from '../utils/action.js';
 import { errorToConsole, prettifyTitle } from '../utils/basic.js';
 import { retainEvent } from '../utils/frigate.js';
 import { getEventDurationString } from '../utils/ha/browse-media.js';
+import { homeAssistantSignPath } from '../utils/ha/index.js';
 import { View } from '../view.js';
+import { dispatchFrigateCardErrorEvent, renderProgressIndicator } from './message.js';
 
 // The minimum width of a thumbnail with details enabled.
 export const THUMBNAIL_DETAILS_WIDTH_MIN = 300;
@@ -27,10 +30,51 @@ export class FrigateCardThumbnailFeatureEvent extends LitElement {
   @property({ attribute: false })
   public thumbnail?: string;
 
+  @property({ attribute: false })
+  public hass?: ExtendedHomeAssistant;
+
+  protected _signThumbnailTask = new Task(
+    this,
+    this._signThumbnail.bind(this),
+    // Do not re-run the task if hass changes, unless it was previously undefined.
+    (): [boolean, string | undefined] => [!!this.hass, this.thumbnail],
+  );
+
+  public count = 0;
+
+  /**
+   * Sign a thumbnail URL if necessary. May throw.
+   * @param param0 A list of lit-task dependencies.
+   * @returns A signed URL or null.
+   */
+  protected async _signThumbnail([haveHASS, thumbnail]: [
+    boolean,
+    string | undefined,
+  ]): Promise<string | null> {
+    this.count++;
+    if (!haveHASS || !this.hass || !thumbnail) {
+      return null;
+    }
+    if (this.thumbnail?.startsWith('data:')) {
+      return this.thumbnail;
+    }
+    return await homeAssistantSignPath(this.hass, thumbnail);
+  }
+
   protected render(): TemplateResult | void {
     return html`
       ${this.thumbnail
-        ? html`<img src="${this.thumbnail}" />`
+        ? html` ${this._signThumbnailTask.render({
+            initial: () => renderProgressIndicator(),
+            pending: () => renderProgressIndicator(),
+            error: (e: unknown) => {
+              errorToConsole(e as Error);
+              dispatchFrigateCardErrorEvent(this, e as Error);
+            },
+            complete: (signedThumbnail: string | null) => {
+              return signedThumbnail ? html`<img src="${signedThumbnail}" />` : html``;
+            },
+          })}`
         : html`<ha-icon
             icon="mdi:image-off"
             title=${localize('thumbnail.no_thumbnail')}
@@ -134,35 +178,35 @@ export class FrigateCardThumbnail extends LitElement {
   @property({ attribute: true, type: Boolean })
   public show_timeline_control = false;
 
-  // ============================
+  // ======================
-  // Data-binding based interface
+  // Target-based interface
-  // ============================
+  // ======================
-  @property({ attribute: false })
-  public view?: Readonly<View>;
-
   @property({ attribute: false })
   public target?: FrigateBrowseMediaSource | null;
 
   @property({ attribute: false })
   public childIndex?: number;
 
-  // =============================================================
+  // ===================================================
-  // Overrides that can be used if data bindings are not available
+  // Raw interface (can override target-based interface)
-  // =============================================================
+  // ===================================================
   @property({ attribute: true })
   public thumbnail?: string;
 
   @property({ attribute: true })
   public label?: string;
 
-  @property({ attribute: true })
+  @property({ attribute: false })
-  public event?: string;
+  public event?: FrigateEvent;
 
   // ================================
   // Optional parameters for controls
   // ================================
   @property({ attribute: false })
-  public hass?: HomeAssistant;
+  public view?: Readonly<View>;
+
+  @property({ attribute: false })
+  public hass?: ExtendedHomeAssistant;
 
   @property({ attribute: false })
   public clientID?: string;
@@ -188,7 +232,7 @@ export class FrigateCardThumbnail extends LitElement {
 
     // Always give the overrides preference (if specified).
     if (this.event) {
-      event = JSON.parse(this.event);
+      event = this.event;
     }
     thumbnail = this.thumbnail ? this.thumbnail : thumbnail;
     label = this.label ? this.label : label;
@@ -206,6 +250,7 @@ export class FrigateCardThumbnail extends LitElement {
       ? html`<frigate-card-thumbnail-feature-event
           aria-label="${label ?? ''}"
           title="${label ?? ''}"
+          .hass=${this.hass}
           .thumbnail=${thumbnail ?? undefined}
           .label=${label ?? undefined}
         ></frigate-card-thumbnail-feature-event>`

src/components/timeline.ts

@@ -96,7 +96,10 @@ interface CameraRecordings {
   summary: RecordingSummary;
 }
 
-const isHoverableDevice = window.matchMedia('(hover: hover) and (pointer: fine)');
+// An event used to fetch the HASS object. See "Special note" below.
+class HASSRequestEvent extends Event {
+  public hass?: ExtendedHomeAssistant;
+}
 
 /**
  * A manager to maintain/fetch timeline events.
@@ -117,17 +120,6 @@ class TimelineDataManager {
   // than this).
   protected _maxAgeSeconds: number = TIMELINE_DATA_MANAGER_MAX_AGE_SECONDS;
 
-  protected _contentCallback?: (source: FrigateBrowseMediaSource) => string;
-  protected _tooltipCallback?: (source: FrigateBrowseMediaSource) => string;
-
-  constructor(params?: {
-    contentCallback?: (source: FrigateBrowseMediaSource) => string;
-    tooltipCallback?: (source: FrigateBrowseMediaSource) => string;
-  }) {
-    this._contentCallback = params?.contentCallback;
-    this._tooltipCallback = params?.tooltipCallback;
-  }
-
   // Get the last event fetch date.
   get lastFetchDate(): Date | null {
     return this._dateFetch ?? null;
@@ -178,8 +170,7 @@ class TimelineDataManager {
           item = {
             id: event.id,
             group: camera,
-            content: this._contentCallback?.(child) ?? '',
+            content: '',
-            title: this._tooltipCallback?.(child) ?? '',
             start: event.start_time * 1000,
             event: event,
           };
@@ -423,6 +414,62 @@ class TimelineDataManager {
   }
 }
 
+/**
+ * A simgple thumbnail wrapper class for use in the timeline where LIT data
+ * bindings are not available.
+ */
+@customElement('frigate-card-timeline-thumbnail')
+export class FrigateCardTimelineThumbnail extends LitElement {
+  @property({ attribute: true })
+  public thumbnail?: string;
+
+  @property({ attribute: true, type: Boolean })
+  public details = false;
+
+  @property({ attribute: true })
+  public event?: string;
+
+  @property({ attribute: true })
+  public label?: string;
+
+  /**
+   * Master render method.
+   * @returns A rendered template.
+   */
+  protected render(): TemplateResult | void {
+    // Don't display tooltips on touch devices, they just get in the way of
+    // the drawer.
+    if (!this.thumbnail || !this.event) {
+      return html``;
+    }
+
+    /* Special note on what's going on here:
+     *
+     * This component does not have access to HASS, as there's no way to pass it
+     * in via the string-based tooltip that timeline supports. Instead dispatch
+     * an event to request HASS which the timeline adds to the event object
+     * before execution continues.
+     */
+    const hassRequest = new HASSRequestEvent(`frigate-card:timeline:hass-request`, {
+      composed: true,
+      bubbles: true,
+    });
+    this.dispatchEvent(hassRequest);
+    if (!hassRequest.hass) {
+      return html``;
+    }
+
+    return html` <frigate-card-thumbnail
+      .hass=${hassRequest.hass}
+      .event=${JSON.parse(this.event)}
+      .label=${this.label}
+      .thumbnail=${this.thumbnail}
+      ?details=${this.details}
+    >
+    </frigate-card-thumbnail>`;
+  }
+}
+
 @customElement('frigate-card-timeline')
 export class FrigateCardTimeline extends LitElement {
   @property({ attribute: false })
@@ -484,9 +531,8 @@ export class FrigateCardTimelineCore extends LitElement {
   @property({ attribute: false })
   public timelineConfig?: TimelineConfig;
 
-  protected _data = new TimelineDataManager({
+  protected _data = new TimelineDataManager();
-    tooltipCallback: this._getTooltip.bind(this),
+
-  });
   protected _refTimeline: Ref<HTMLElement> = createRef();
   protected _timeline?: Timeline;
 
@@ -495,13 +541,18 @@ export class FrigateCardTimelineCore extends LitElement {
   protected _pointerHeld = false;
   protected _ignoreClick = false;
 
+  protected static _isHoverableDevice = window.matchMedia(
+    '(hover: hover) and (pointer: fine)',
+  ).matches;
+
   /**
    * Get a tooltip for a given timeline event.
    * @param source The FrigateBrowseMediaSource in question.
    * @returns The tooltip as a string to render.
    */
-  protected _getTooltip(source: FrigateBrowseMediaSource): string {
+  protected _getTooltip(item: TimelineItem): string {
-    if (!isHoverableDevice.matches) {
+    const source = (<FrigateCardTimelineItem>item).source;
+    if (!FrigateCardTimelineCore._isHoverableDevice || !source) {
       // Don't display tooltips on touch devices, they just get in the way of
       // the drawer.
       return '';
@@ -518,13 +569,13 @@ export class FrigateCardTimelineCore extends LitElement {
     // Note that changes to attributes here must be mirrored in the xss
     // whitelist in `_getOptions()` .
     return `
-      <frigate-card-thumbnail
+      <frigate-card-timeline-thumbnail
-        ${detailsAttr}
         thumbnail="${source.thumbnail}"
-        label="${source.title}"
+        ${detailsAttr}
         ${eventAttr}
+        label="${source.title}"
       >
-      </frigate-card-thumbnail>`;
+      </frigate-card-timeline-thumbnail>`;
   }
 
   /**
@@ -544,6 +595,9 @@ export class FrigateCardTimelineCore extends LitElement {
     };
 
     return html`<div
+      @frigate-card:timeline:hass-request=${(request: HASSRequestEvent) => {
+        request.hass = this.hass;
+      }}
       class="${classMap(timelineClasses)}"
       ${ref(this._refTimeline)}
     ></div>`;
@@ -735,7 +789,7 @@ export class FrigateCardTimelineCore extends LitElement {
     properties: TimelineEventPropertiesResult,
   ): void {
     if (properties.event && this._pointerHeld) {
-      // An event will have been set when it's a human changes the range, 
+      // An event will have been set when it's a human changes the range.
       this._ignoreClick = true;
     }
   }
@@ -1052,12 +1106,18 @@ export class FrigateCardTimelineCore extends LitElement {
       tooltip: {
         followMouse: true,
         overflowMethod: 'cap',
+        template: this._getTooltip.bind(this),
       },
       xss: {
         disabled: false,
         filterOptions: {
           whiteList: {
-            'frigate-card-thumbnail': ['details', 'thumbnail', 'label', 'event'],
+            'frigate-card-timeline-thumbnail': [
+              'details',
+              'thumbnail',
+              'label',
+              'event',
+            ],
             div: ['title'],
             span: ['style'],
           },
@@ -1229,14 +1289,9 @@ export class FrigateCardTimelineCore extends LitElement {
         // Don't show an empty timeline, show a message instead.
         const groups = this._getGroups();
         if (!groups.length) {
-          dispatchMessageEvent(
+          dispatchMessageEvent(this, localize('error.timeline_no_cameras'), 'info', {
-            this,
-            localize('error.timeline_no_cameras'),
-            'info',
-            {
             icon: 'mdi:chart-gantt',
-            }
+          });
-          );
           return;
         }
 
@@ -1257,10 +1312,10 @@ export class FrigateCardTimelineCore extends LitElement {
         this._timeline.on('mouseDown', () => {
           this._pointerHeld = true;
           this._ignoreClick = false;
-        })
+        });
         this._timeline.on('mouseUp', () => {
           this._pointerHeld = false;
-        })
+        });
       }
     }
 
@@ -1279,6 +1334,7 @@ export class FrigateCardTimelineCore extends LitElement {
 
 declare global {
   interface HTMLElementTagNameMap {
+    'frigate-card-timeline-thumbnail': FrigateCardTimelineThumbnail;
     'frigate-card-timeline-core': FrigateCardTimelineCore;
     'frigate-card-timeline': FrigateCardTimeline;
   }

src/scss/thumbnail-feature-event.scss

@@ -8,7 +8,8 @@ img {
 }
 
 img,
-ha-icon {
+ha-icon,
+frigate-card-progress-indicator {
   border-radius: var(--ha-card-border-radius, 4px);
 
   max-width: var(--frigate-card-thumbnail-size);