feat(calls): minimise the call PiP to a small bar; phones start minimised (#323)

The PiP had no way to get out of the way short of dragging it. Add a
minimise / expand button: minimised it is a 220×40 bar with the call
room's name (still draggable, tap to return to the call). The choice is
remembered; with no saved choice, phones start minimised.

Fixes #323

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/components/CallEmbedProvider.tsx

@@ -89,6 +89,9 @@ import { zIndices } from '../styles/zIndex';
 
 const PIP_MIN_W = 200;
 const PIP_MIN_H = 112;
+/** [Gitea #323] Minimised PiP bar size. */
+const PIP_MINI_W = 220;
+const PIP_MINI_H = 40;
 
 type Corner = 'se' | 'sw' | 'ne' | 'nw';
 
@@ -981,6 +984,28 @@ export function CallEmbedProvider({ children }: CallEmbedProviderProps) {
   );
 
   const [pipIsFullscreen, setPipIsFullscreen] = useState(false);
+  // [Gitea #323] Minimised PiP: a small draggable bar (room name + expand)
+  // instead of the video. Remembered; phones start minimised.
+  const [pipMinimized, setPipMinimized] = useState<boolean>(() => {
+    try {
+      const v = localStorage.getItem('pip-minimized');
+      if (v !== null) return v === '1';
+    } catch {
+      /* storage unavailable */
+    }
+    return window.innerWidth < 600;
+  });
+  const pipFullSizeRef = React.useRef({ width: 280, height: 158 });
+  const togglePipMinimized = useCallback(() => {
+    setPipMinimized((m) => {
+      try {
+        localStorage.setItem('pip-minimized', m ? '0' : '1');
+      } catch {
+        /* storage unavailable */
+      }
+      return !m;
+    });
+  }, []);
   useEffect(() => {
     const onFsChange = () => setPipIsFullscreen(!!document.fullscreenElement);
     document.addEventListener('fullscreenchange', onFsChange);
@@ -1078,6 +1103,26 @@ export function CallEmbedProvider({ children }: CallEmbedProviderProps) {
     }
   }, [pipMode, callVisible]);
 
+  // [Gitea #323] Apply the minimised / full PiP size (after the entry effect
+  // below has positioned and sized it). Keeps the bar on screen.
+  React.useEffect(() => {
+    const el = callEmbedRef.current;
+    if (!el || !pipMode) return;
+    if (pipMinimized) {
+      if (el.offsetHeight > PIP_MINI_H) {
+        pipFullSizeRef.current = { width: el.offsetWidth, height: el.offsetHeight };
+      }
+      el.style.width = `${PIP_MINI_W}px`;
+      el.style.height = `${PIP_MINI_H}px`;
+    } else {
+      el.style.width = `${pipFullSizeRef.current.width}px`;
+      el.style.height = `${pipFullSizeRef.current.height}px`;
+    }
+    const rect = el.getBoundingClientRect();
+    el.style.left = `${Math.max(0, Math.min(rect.left, window.innerWidth - el.offsetWidth))}px`;
+    el.style.top = `${Math.max(0, Math.min(rect.top, window.innerHeight - el.offsetHeight))}px`;
+  }, [pipMode, pipMinimized, callEmbedRef]);
+
   React.useEffect(() => {
     if (!pipMode) return;
     const onPipWindowResize = (): void => {
@@ -1396,19 +1441,50 @@ export function CallEmbedProvider({ children }: CallEmbedProviderProps) {
                 position: 'absolute',
                 inset: 0,
                 zIndex: 1,
-                background: 'transparent',
+                // Minimised: cover the frame so only the bar shows.
+                background: pipMinimized ? color.Surface.Container : 'transparent',
                 cursor: 'grab',
                 // [Gitea #43] The call's "Share your screen?" prompt is drawn
                 // inside the frame: let the click reach its Share button.
                 pointerEvents: pipPromptOpen ? 'none' : undefined,
                 display: 'flex',
-                alignItems: 'flex-start',
                 justifyContent: 'flex-end',
+                alignItems: pipMinimized ? 'center' : 'flex-start',
                 padding: '6px',
               }}
             >
-              <div style={{ display: 'flex', gap: config.space.S100, alignItems: 'center' }}>
-                {document.fullscreenEnabled && (
+              <div
+                style={{
+                  display: 'flex',
+                  gap: config.space.S100,
+                  alignItems: 'center',
+                  ...(pipMinimized ? { width: '100%' } : {}),
+                }}
+              >
+                {/* Leftmost: the top-right corner is a resize handle. */}
+                <IconButton
+                  type="button"
+                  size="300"
+                  radii="300"
+                  variant="Surface"
+                  fill="None"
+                  aria-label={pipMinimized ? 'Expand call' : 'Minimise call'}
+                  aria-pressed={pipMinimized}
+                  onClick={(e) => {
+                    e.stopPropagation();
+                    togglePipMinimized();
+                  }}
+                  onMouseDown={(e) => e.stopPropagation()}
+                  onTouchStart={(e) => e.stopPropagation()}
+                  style={{
+                    background: 'rgba(0,0,0,0.65)',
+                    backdropFilter: 'blur(4px)',
+                    color: '#fff',
+                  }}
+                >
+                  <Icon size="100" src={pipMinimized ? Icons.ChevronTop : Icons.Minus} />
+                </IconButton>
+                {!pipMinimized && document.fullscreenEnabled && (
                   <IconButton
                     type="button"
                     size="300"
@@ -1440,14 +1516,23 @@ export function CallEmbedProvider({ children }: CallEmbedProviderProps) {
                     fontSize: '11px',
                     fontWeight: 600,
                     pointerEvents: 'none',
+                    ...(pipMinimized
+                      ? {
+                          flexGrow: 1,
+                          minWidth: 0,
+                          overflow: 'hidden',
+                          textOverflow: 'ellipsis',
+                          whiteSpace: 'nowrap',
+                        }
+                      : {}),
                   }}
                 >
-                  ↗ Return to call
+                  {pipMinimized ? `↗ ${callEmbed.room.name ?? 'Call'}` : '↗ Return to call'}
                 </div>
               </div>
             </div>
-            <PipMuteOverlay callEmbed={callEmbed} />
-            {(['se', 'sw', 'ne', 'nw'] as Corner[]).map((corner) => {
+            {!pipMinimized && <PipMuteOverlay callEmbed={callEmbed} />}
+            {(pipMinimized ? [] : (['se', 'sw', 'ne', 'nw'] as Corner[])).map((corner) => {
               const s = corner.includes('s');
               const e2 = corner.includes('e');
               const dots = [

src/app/components/image-pack-view/ImagePackContent.tsx

@@ -16,7 +16,7 @@ import { SettingTile } from '../setting-tile';
 import { UsageSwitcher } from './UsageSwitcher';
 import { ImagePackProfile, ImagePackProfileEdit } from './PackMeta';
 import * as css from './style.css';
-import { useStrippedFilePicker } from '../../hooks/useStrippedFilePicker';
+import { useFilePicker } from '../../hooks/useFilePicker';
 import { CompactUploadCardRenderer } from '../upload-card';
 import { UploadSuccess } from '../../state/upload';
 import { getImageInfo, TUploadContent } from '../../utils/matrix';
@@ -60,7 +60,7 @@ export const ImagePackContent = as<'div', ImagePackContentProps>(
       [imagePack, savedImages, uploadedImages],
     );
 
-    const pickFiles = useStrippedFilePicker(
+    const pickFiles = useFilePicker(
       useCallback(
         (pickedFiles: File[]) => {
           const uniqueFiles = pickedFiles.map((file) => {

src/app/components/image-pack-view/PackMeta.tsx

@@ -19,7 +19,7 @@ import { nameInitials } from '../../utils/common';
 import { BreakWord } from '../../styles/Text.css';
 import { LINKIFY_OPTS } from '../../plugins/react-custom-html-parser';
 import { ContainerColor } from '../../styles/ContainerColor.css';
-import { useStrippedFilePicker } from '../../hooks/useStrippedFilePicker';
+import { useFilePicker } from '../../hooks/useFilePicker';
 import { useObjectURL } from '../../hooks/useObjectURL';
 import { createUploadAtom, UploadSuccess } from '../../state/upload';
 import { CompactUploadCardRenderer } from '../upload-card';
@@ -111,7 +111,7 @@ export function ImagePackProfileEdit({ meta, onCancel, onSave }: ImagePackProfil
     return undefined;
   }, [imageFile]);
 
-  const pickFile = useStrippedFilePicker(setImageFile, false);
+  const pickFile = useFilePicker(setImageFile, false);
 
   const handleRemoveUpload = useCallback(() => {
     setImageFile(undefined);

src/app/features/common-settings/permissions/PowersEditor.tsx

@@ -40,7 +40,7 @@ import { useImagePackRooms } from '../../../hooks/useImagePackRooms';
 import { roomToParentsAtom } from '../../../state/room/roomToParents';
 import { useMediaAuthentication } from '../../../hooks/useMediaAuthentication';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
-import { useStrippedFilePicker } from '../../../hooks/useStrippedFilePicker';
+import { useFilePicker } from '../../../hooks/useFilePicker';
 import { CompactUploadCardRenderer } from '../../../components/upload-card';
 import { createUploadAtom, UploadSuccess } from '../../../state/upload';
 import { AsyncStatus, useAsyncCallback } from '../../../hooks/useAsyncCallback';
@@ -68,7 +68,7 @@ function EditPower({ maxPower, power, tag, onSave, onClose }: EditPowerProps) {
   const imagePackRooms = useImagePackRooms(room.roomId, roomToParents);
 
   const [iconFile, setIconFile] = useState<File>();
-  const pickFile = useStrippedFilePicker(setIconFile, false);
+  const pickFile = useFilePicker(setIconFile, false);
 
   const [tagColor, setTagColor] = useState<string | undefined>(tag?.color);
   const [tagIcon, setTagIcon] = useState<MemberPowerTagIcon | undefined>(tag?.icon);

src/app/hooks/useStrippedFilePicker.ts

@@ -1,36 +0,0 @@
-import { useCallback } from 'react';
-import { useFilePicker } from './useFilePicker';
-import { useSetting } from '../state/hooks/settings';
-import { settingsAtom } from '../state/settings';
-import { stripImageMetadata } from '../utils/stripImageMetadata';
-
-/**
- * [Gitea #332] `useFilePicker` for images that get published (emoji / sticker
- * packs, pack avatars, power-level badges): applies "Remove Photo Metadata"
- * like message attachments and avatars, so a phone photo's GPS location and
- * timestamp don't go to every member of the room or space.
- */
-export const useStrippedFilePicker = <M extends boolean | undefined = undefined>(
-  onSelect: (file: M extends true ? File[] : File) => void,
-  multiple?: M,
-) => {
-  const [strip] = useSetting(settingsAtom, 'stripImageMetadata');
-  const handle = useCallback(
-    (picked: File | File[]) => {
-      if (!strip) {
-        onSelect(picked as M extends true ? File[] : File);
-        return;
-      }
-      const clean = (f: File) => stripImageMetadata(f).then((r) => r.file);
-      if (Array.isArray(picked)) {
-        Promise.all(picked.map(clean)).then((files) =>
-          onSelect(files as M extends true ? File[] : File),
-        );
-      } else {
-        clean(picked).then((file) => onSelect(file as M extends true ? File[] : File));
-      }
-    },
-    [strip, onSelect],
-  );
-  return useFilePicker(handle as (file: M extends true ? File[] : File) => void, multiple);
-};