本文整理汇总了TypeScript中@jupyterlab/services.utils.PromiseDelegate类的典型用法代码示例。如果您正苦于以下问题：TypeScript utils.PromiseDelegate类的具体用法？TypeScript utils.PromiseDelegate怎么用？TypeScript utils.PromiseDelegate使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了utils.PromiseDelegate类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: it
it('should restore the widgets in a tracker', done => {
let tracker = new InstanceTracker<Widget>({ namespace: 'foo-widget' });
let registry = new CommandRegistry();
let state = new StateDB({ namespace: NAMESPACE });
let ready = new utils.PromiseDelegate<void>();
let restorer = new InstanceRestorer({
first: ready.promise, registry, state
});
let called = false;
let key = `${tracker.namespace}:${tracker.namespace}`;
registry.addCommand(tracker.namespace, {
execute: () => { called = true; }
});
state.save(key, { data: null }).then(() => {
return restorer.restore(tracker, {
args: () => null,
name: () => tracker.namespace,
command: tracker.namespace
});
}).catch(done);
ready.resolve(void 0);
restorer.restored.then(() => { expect(called).to.be(true); })
.then(() => state.remove(key))
.then(() => { done(); })
.catch(done);
});示例2: it
it('should add a widget to be tracked by the restorer', done => {
let ready = new utils.PromiseDelegate<void>();
let restorer = new LayoutRestorer({
first: ready.promise,
registry: new CommandRegistry(),
state: new StateDB({ namespace: NAMESPACE })
});
let currentWidget = new Widget();
let mode: DockPanel.Mode = 'single-document';
let dehydrated: ApplicationShell.ILayout = {
mainArea: { currentWidget, dock: null, mode },
leftArea: { collapsed: true, currentWidget: null, widgets: null },
rightArea: { collapsed: true, currentWidget: null, widgets: null }
};
restorer.add(currentWidget, 'test-one');
ready.resolve(void 0);
restorer.restored.then(() => restorer.save(dehydrated))
.then(() => restorer.fetch())
.then(layout => {
expect(layout.mainArea.currentWidget).to.be(currentWidget);
expect(layout.mainArea.mode).to.be(mode);
done();
}).catch(done);
});