Events performance (#1645)

* rearrange event route and splitted into several components

* useIntersectionObserver

* re-arrange

* searchstring improvement

* added xs tailwind breakpoint

* useOuterClick hook

* cleaned up

* removed some video controls for mobile devices

* lint

* moved hooks to global folder

* moved buttons for small devices

* added button groups

Co-authored-by: Bernt Christian Egeland <cbegelan@gmail.com>

web/src/routes/Events/components/tableRow.jsx

@@ -0,0 +1,119 @@
+import { h } from 'preact';
+import { memo } from 'preact/compat';
+import { useCallback, useState, useMemo } from 'preact/hooks';
+import { Tr, Td, Tbody } from '../../../components/Table';
+import Filterable from './filterable';
+import Event from '../../Event';
+import { useSearchString } from '../../../hooks/useSearchString';
+import { useClickOutside } from '../../../hooks/useClickOutside';
+
+const EventsRow = memo(
+  ({
+    id,
+    apiHost,
+    start_time: startTime,
+    end_time: endTime,
+    scrollToRef,
+    lastRowRef,
+    handleFilter,
+    pathname,
+    limit,
+    camera,
+    label,
+    top_score: score,
+    zones,
+  }) => {
+    const [viewEvent, setViewEvent] = useState(null);
+    const { searchString, removeDefaultSearchKeys } = useSearchString(limit);
+    const searchParams = useMemo(() => new URLSearchParams(searchString), [searchString]);
+
+    const innerRef = useClickOutside(() => {
+      setViewEvent(null);
+    });
+
+    const viewEventHandler = useCallback(
+      (id) => {
+        //Toggle event view
+        if (viewEvent === id) return setViewEvent(null);
+        //Set event id to be rendered.
+        setViewEvent(id);
+      },
+      [viewEvent]
+    );
+
+    const start = new Date(parseInt(startTime * 1000, 10));
+    const end = new Date(parseInt(endTime * 1000, 10));
+
+    return (
+      <Tbody reference={innerRef}>
+        <Tr data-testid={`event-${id}`} className={`${viewEvent === id ? 'border-none' : ''}`}>
+          <Td className="w-40">
+            <a
+              onClick={() => viewEventHandler(id)}
+              ref={lastRowRef}
+              data-start-time={startTime}
+              // data-reached-end={reachedEnd} <-- Enable this will cause all events to re-render when reaching end.
+            >
+              <img
+                width="150"
+                height="150"
+                className="cursor-pointer"
+                style="min-height: 48px; min-width: 48px;"
+                src={`${apiHost}/api/events/${id}/thumbnail.jpg`}
+              />
+            </a>
+          </Td>
+          <Td>
+            <Filterable
+              onFilter={handleFilter}
+              pathname={pathname}
+              searchParams={searchParams}
+              paramName="camera"
+              name={camera}
+              removeDefaultSearchKeys={removeDefaultSearchKeys}
+            />
+          </Td>
+          <Td>
+            <Filterable
+              onFilter={handleFilter}
+              pathname={pathname}
+              searchParams={searchParams}
+              paramName="label"
+              name={label}
+              removeDefaultSearchKeys={removeDefaultSearchKeys}
+            />
+          </Td>
+          <Td>{(score * 100).toFixed(2)}%</Td>
+          <Td>
+            <ul>
+              {zones.map((zone) => (
+                <li>
+                  <Filterable
+                    onFilter={handleFilter}
+                    pathname={pathname}
+                    searchParams={searchString}
+                    paramName="zone"
+                    name={zone}
+                    removeDefaultSearchKeys={removeDefaultSearchKeys}
+                  />
+                </li>
+              ))}
+            </ul>
+          </Td>
+          <Td>{start.toLocaleDateString()}</Td>
+          <Td>{start.toLocaleTimeString()}</Td>
+          <Td>{end.toLocaleTimeString()}</Td>
+        </Tr>
+        {viewEvent === id ? (
+          <Tr className="border-b-1">
+            <Td colSpan="8" reference={(el) => (scrollToRef[id] = el)}>
+              <Event eventId={id} close={() => setViewEvent(null)} scrollRef={scrollToRef} />
+            </Td>
+          </Tr>
+        ) : null}
+      </Tbody>
+    );
+  }
+);
+
+export default EventsRow;