Files
NetMesh/domain/focusSidebarHostDrop.ts

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export const FOCUS_SIDEBAR_HOST_DRAG_TYPE = 'host-id';
export const FOCUS_SIDEBAR_SESSION_DRAG_TYPE = 'workspace-focus-session-id';
export type FocusSidebarDragKind = 'session-reorder' | 'host-append' | null;
export function dataTransferHasType(
types: ArrayLike<string> | readonly string[],
type: string,
): boolean {
return Array.from(types as ArrayLike<string>).includes(type);
}
/**
* Decide how the focus-mode workspace sidebar should treat an in-progress drag.
* Session reorder wins when this sidebar started the drag, so a host mime that
* happens to be present cannot steal reorder gestures.
*/
export function resolveFocusSidebarDragKind(input: {
types: ArrayLike<string> | readonly string[];
activeSessionDragId?: string | null;
}): FocusSidebarDragKind {
if (
input.activeSessionDragId
|| dataTransferHasType(input.types, FOCUS_SIDEBAR_SESSION_DRAG_TYPE)
) {
return 'session-reorder';
}
if (dataTransferHasType(input.types, FOCUS_SIDEBAR_HOST_DRAG_TYPE)) {
return 'host-append';
}
return null;
}
export function readHostIdFromDataTransfer(
getData: (type: string) => string,
): string | null {
const hostId = getData(FOCUS_SIDEBAR_HOST_DRAG_TYPE)?.trim();
return hostId || null;
}
export function appendHostFromWorkspaceDrop(input: {
types: ArrayLike<string> | readonly string[];
getData: (type: string) => string;
workspaceId: string;
activeSessionDragId?: string | null;
onAppendHostToWorkspace: (workspaceId: string, hostId: string) => void;
}): boolean {
if (resolveFocusSidebarDragKind(input) !== 'host-append') return false;
const hostId = readHostIdFromDataTransfer(input.getData);
if (!hostId) return false;
input.onAppendHostToWorkspace(input.workspaceId, hostId);
return true;
}