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silverbullet/web/hooks/panel_widget.ts

60 lines
1.5 KiB
TypeScript

import { Hook, Manifest } from "../../plugos/types.ts";
import { System } from "../../plugos/system.ts";
import { CodeWidgetCallback } from "$sb/types.ts";
export type PanelWidgetT = {
panelWidget?: "top" | "bottom";
};
export class PanelWidgetHook implements Hook<PanelWidgetT> {
callbacks = new Map<string, CodeWidgetCallback>();
constructor() {
}
collectAllPanelWidgets(system: System<PanelWidgetT>) {
this.callbacks.clear();
for (const plug of system.loadedPlugs.values()) {
for (
const [name, functionDef] of Object.entries(
plug.manifest!.functions,
)
) {
if (!functionDef.panelWidget) {
continue;
}
this.callbacks.set(
functionDef.panelWidget,
(bodyText, pageName) => {
return plug.invoke(name, [bodyText, pageName]);
},
);
}
}
}
apply(system: System<PanelWidgetT>): void {
this.collectAllPanelWidgets(system);
system.on({
plugLoaded: () => {
this.collectAllPanelWidgets(system);
},
});
}
validateManifest(manifest: Manifest<PanelWidgetT>): string[] {
const errors = [];
for (const functionDef of Object.values(manifest.functions)) {
if (!functionDef.panelWidget) {
continue;
}
if (!["top", "bottom"].includes(functionDef.panelWidget)) {
errors.push(
`Panel widgets must be attached to either 'top' or 'bottom'.`,
);
}
}
return errors;
}
}