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The option-heavy player UIs (mixer, camera director, viz, audio routing)
all live in the rail popovers, which are exclusive: openPopFor() closes
the last one before opening the next. You cannot watch the mixer while
riding the camera, and both vanish the moment you look at the highway.
Add `window.feedBack.panes` — a core registry for live UI that is
authored once as `mount(root, ctx)` and hosted anywhere. Panes are
non-exclusive, and they survive song switches structurally: the dock is a
body child outside every .screen, so the per-song teardown never sees it.
The adoption cost for a plugin is two calls:
feedBack.panes.register({ id, title, icon, mount, unmount });
feedBack.panes.attachChip(myExistingDialogEl, id);
attachChip injects THE standard pop-out chip. Clicking it opens the pane
and hides the plugin's dialog, leaving a stub to bring it back. Core owns
the hide/restore, so every plugin's pop-out looks and behaves the same —
which is the point. It hides via a dedicated .fb-pane-detached class, not
.hidden/[hidden], because the dialogs we attach to already toggle those.
Everything a pane may touch arrives through `ctx` — never a global. That
is what will let the same mount() run inside a pop-out window, a separate
JS realm with no window.feedBack, no window.highway and no audio graph:
ctx.call(domain, cmd, payload) -> the capability bus
ctx.on(event, fn) -> the feedBack bus (allowlisted)
ctx.subscribe(stream, fn) -> playhead / meters
ctx.state.get/set -> persisted, main realm is the only writer
ctx.playhead(), ctx.song(), ctx.toast(), ctx.close()
ctx tracks every subscription it hands out and drops them on unmount, so
a pane cannot leak listeners across a dock/undock cycle.
Streams exist because an AnalyserNode cannot cross a window boundary:
levels are reduced to numbers in the realm that owns the audio graph.
One shared rAF loop, refcounted against live subscriptions, dirty-checked
before fan-out, and stopped dead when the last pane closes.
Hosts register themselves with the manager rather than being imported by
it — the dock lands at priority 0 (the floor, always available), so the
OS pane window can drop in later without this code changing.
Ships two built-in panes: Now Playing (the reference pane — reads the bus,
a stream, and levels, and touches no globals) and Mixer (the same faders
as the rail, via ctx.call('audio-mix', ...), with the chip attached to the
real #mixer-control). Plus a "Panes" rail popover to open panes that have
no dialog of their own; the system tray will mirror that list.
Note the dock sits at z-index 110, not on the docs/plugin-v3-ui.md ladder
(transport 20, rail 30, popovers 40) — those live INSIDE #player's
stacking context, and #player is itself fixed at z-index 100. A dock below
100 is invisible on the one screen panes exist for. Body-level ladder:
#player 100 < dock 110 < toasts 120 < modals 200.
Pop-out windows, the system tray, manifest-declared panes and mirrorGlobal
(the window.__h3dCamCtl proxy the camera director needs) follow.
Signed-off-by: topkoa <topkoa@gmail.com>
109 lines
3.9 KiB
JavaScript
109 lines
3.9 KiB
JavaScript
/*
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* fee[dB]ack — pane dock (the in-window pane host).
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*
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* A right-edge stack of cards, one per open pane. Deliberately NOT a rail
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* popover: the rail is exclusive (player-chrome.js openPopFor closes the last
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* one before opening the next), which is precisely why you can't watch the
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* mixer while riding the camera. Cards here coexist.
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*
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* Song-switch survival is structural, not defended. `#fb-pane-dock` is appended
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* to <body>, outside every `.screen`, so the per-song teardown never sees it —
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* and `playSong()` ends in `showScreen('player')`, whose id === 'player' short-
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* circuits the teardown branch anyway. Nothing to reset, nothing to re-mount.
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*
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* Registers itself as the `dock` host at priority 0 — the floor. Whatever else
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* exists (an OS pane window), a pane can always land here.
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*/
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(function () {
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'use strict';
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const panes = window.feedBack && window.feedBack.panes;
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if (!panes || typeof panes.registerHost !== 'function') {
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console.error('[panes] pane-manager.js must load before pane-dock.js');
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return;
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}
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let dockEl = null;
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const cards = new Map(); // paneId -> card element
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function dock() {
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if (dockEl && dockEl.isConnected) return dockEl;
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dockEl = document.getElementById('fb-pane-dock');
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if (!dockEl) {
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dockEl = document.createElement('div');
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dockEl.id = 'fb-pane-dock';
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dockEl.className = 'fb-pane-dock';
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dockEl.setAttribute('role', 'region');
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dockEl.setAttribute('aria-label', 'Panes');
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document.body.appendChild(dockEl);
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}
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return dockEl;
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}
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function _syncEmpty() {
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const d = dock();
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d.classList.toggle('is-empty', cards.size === 0);
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}
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function mount(spec) {
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const card = document.createElement('section');
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card.className = 'fb-pane-card';
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card.dataset.paneId = spec.id;
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card.setAttribute('aria-label', spec.title);
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const head = document.createElement('header');
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head.className = 'fb-pane-card-head';
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const title = document.createElement('span');
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title.className = 'fb-pane-card-title';
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// textContent, not innerHTML — a pane title can come from a plugin
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// manifest, i.e. from outside core.
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title.textContent = spec.icon + ' ' + spec.title;
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const close = document.createElement('button');
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close.type = 'button';
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close.className = 'fb-pane-card-btn';
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close.setAttribute('aria-label', 'Close ' + spec.title);
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close.title = 'Close';
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close.textContent = '✕';
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close.addEventListener('click', () => panes.close(spec.id));
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head.appendChild(title);
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head.appendChild(close);
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const body = document.createElement('div');
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body.className = 'fb-pane-card-body fb-selectable';
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card.appendChild(head);
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card.appendChild(body);
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dock().appendChild(card);
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cards.set(spec.id, card);
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_syncEmpty();
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// The pane mounts into the body, never the card — so it cannot reach
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// (or accidentally destroy) the chrome that owns its close button.
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return body;
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}
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function unmount(id) {
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const card = cards.get(id);
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if (card) card.remove();
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cards.delete(id);
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_syncEmpty();
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}
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function focus(id) {
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const card = cards.get(id);
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if (!card) return;
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card.scrollIntoView({ block: 'nearest', behavior: 'smooth' });
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// Re-trigger the flash even if the class is already there (repeat focus
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// of the same card would otherwise be a no-op animation).
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card.classList.remove('is-flash');
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void card.offsetWidth;
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card.classList.add('is-flash');
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setTimeout(() => card.classList.remove('is-flash'), 700);
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}
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panes.registerHost({ id: 'dock', priority: 0, available: () => !!document.body, mount, unmount, focus });
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})();
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