Function getLayoutModelForTab

frontend/layout/lib/layoutModelHooks.ts:15–37

(tabAtom: Atom<Tab>)

const layoutModelMap: Map<string, LayoutModel> = new Map();

function getLayoutModelForTab(tabAtom: Atom<Tab>): LayoutModel {
    const tabData = globalStore.get(tabAtom);
    if (!tabData) return;
    const tabId = tabData.oid;
    if (layoutModelMap.has(tabId)) {
        const layoutModel = layoutModelMap.get(tabData.oid);
        if (layoutModel) {
            return layoutModel;
        }
    }
    const layoutModel = new LayoutModel(tabAtom, globalStore.get, globalStore.set);
    
    const staticTabId = globalStore.get(atoms.staticTabId);
    if (tabId === staticTabId) {
        const layoutStateAtom = getLayoutStateAtomFromTab(tabAtom, globalStore.get);
        globalStore.sub(layoutStateAtom, () => {
            layoutModel.onBackendUpdate();
        });
    }
    
    layoutModelMap.set(tabId, layoutModel);
    return layoutModel;
}

function getLayoutModelForTabById(tabId: string) {
    const tabOref = WOS.makeORef("tab", tabId);