TypeScript WeakMap.set函数代码示例

/**
 * A utility function that sets the listeners for a tab which are then passed in the generated VDom.  The function
 * returns a handle that can be used to clean up the listeners
 * @param tabbed The tabbed mixin that should be effected when the listeners fire
 * @param tab The tab that the listeners are referring to
 */
function setTabListeners(tabbed: TabbedMixin<TabbedChild, TabbedState>, tab: TabbedChild): Handle {
	/* TODO: There is an edge case where if a child tab is moved from one tabbed panel to another without being destroyed */
	tabListenersMap.set(tab, {
		onclickTabListener(evt: MouseEvent): boolean {
			evt.preventDefault();
			setActiveTab(tabbed, tab);
			return true;
		},
		onclickTabCloseListener(evt: MouseEvent): boolean {
			evt.preventDefault();
			tab.close().then((result) => {
				/* while Maquette schedules a render on DOM events, close happens async, therefore we have to
				 * invalidate the tabbed when resolved, otherwise the tab panel won't reflect the actual
				 * children */
				if (result) {
					tabbed.invalidate();
				};
			});
			return true;
		}
	});
	return {
		destroy() {
			const tabListeners = tabListenersMap.get(tab);
			if (tabListeners) {
				tabListenersMap.delete(tab);
			}
		}
	};
}

	}, (instance: any, options: StatefulOptions<State>) => {
		const state = {};
		stateWeakMap.set(instance, state);
		if (options) {
			if (options.state) {
				instance.setState(options.state);
			}
			if (options.id && options.stateFrom) {
				instance.own(instance.observeState(options.id, options.stateFrom));
			}
			else if (options.id || options.stateFrom) {
				throw new TypeError('Factory requires options "id" and "stateFrom" to be supplied together.');
			}
		}
	})

/**
 * A utility function that sets the listeners for a tab which are then passed in the generated VDom.  The function
 * returns a handle that can be used to clean up the listeners
 * @param tabbed The tabbed mixin that should be effected when the listeners fire
 * @param tab The tab that the listeners are referring to
 */
function setTabListeners(tabbed: TabbedMixin<TabbedChild, TabbedState>, tab: TabbedChild): Handle {
	/* TODO: There is an edge case where if a child tab is moved from one tabbed panel to another without being destroyed */
	tabListenersMap.set(tab, {
		onclickTabListener(evt: MouseEvent): boolean {
			evt.preventDefault();
			setActiveTab(tabbed, tab);
			return true;
		},
		onclickTabCloseListener(evt: MouseEvent): boolean {
			evt.preventDefault();
			/* TODO: actually close the tab */
			console.log('close');
			return;
		}
	});
	return {
		destroy() {
			const tabListeners = tabListenersMap.get(tab);
			if (tabListeners) {
				tabListenersMap.delete(tab);
			}
		}
	};
}

			return projectorData && projectorData.root && projectorData.root.ownerDocument;
		},

		get state(): ProjectorState {
			const projectorData = projectorDataMap.get(this);
			return projectorData && projectorData.state;
		}
	})
	.mixin({
		mixin: createParentMixin,
		initialize(instance: Projector, options: ProjectorOptions) {
			const projector = createMaquetteProjector({});
			const root = options && options.root || document.body;
			projectorDataMap.set(instance, {
				projector,
				root,
				state: ProjectorState.Detached
			});
			if (options && options.autoAttach) {
				instance.attach(options && options.append);
			}
		},
		aspectAdvice: {
			after: {
				clear(): void {
					const projector: Projector = this;
					projector.invalidate();
				}
			}
		}
	})

		},

		hasWidget(id: Identifier): boolean {
			return widgets.get(this).hasId(id);
		}
	},

	initialize (instance: App, { toAbsMid = (moduleId: string) => moduleId }: AppOptions = {}) {
		instance._registry = {
			getAction: instance.getAction.bind(instance),
			hasAction: instance.hasAction.bind(instance),
			getCustomElementFactory: instance.getCustomElementFactory.bind(instance),
			hasCustomElementFactory: instance.hasCustomElementFactory.bind(instance),
			getStore: instance.getStore.bind(instance),
			hasStore: instance.hasStore.bind(instance),
			getWidget: instance.getWidget.bind(instance),
			hasWidget: instance.hasWidget.bind(instance)
		};
		Object.freeze(instance._registry);

		instance._resolveMid = makeMidResolver(toAbsMid);

		actions.set(instance, new IdentityRegistry<RegisteredFactory<ActionLike>>());
		customElements.set(instance, new IdentityRegistry<RegisteredFactory<WidgetLike>>());
		stores.set(instance, new IdentityRegistry<RegisteredFactory<StoreLike>>());
		widgets.set(instance, new IdentityRegistry<RegisteredFactory<WidgetLike>>());
	}
}) as AppFactory;

export default createApp;

					});
					unobserve(stateful);
				}, () => { /* completed handler */
					unobserve(stateful);
				}),
				handle: {
					destroy() {
						const observedState = observedStateMap.get(stateful);
						if (observedState) {
							observedState.subscription.unsubscribe();
							observedStateMap.delete(stateful);
						}
					}
				}
			};
			observedStateMap.set(stateful, observedState);
			return observedState.handle;
		}
	}, (instance: any, options: StatefulOptions<State>) => {
		const state = {};
		stateWeakMap.set(instance, state);
		if (options) {
			if (options.state) {
				instance.setState(options.state);
			}
			if (options.id && options.stateFrom) {
				instance.own(instance.observeState(options.id, options.stateFrom));
			}
			else if (options.id || options.stateFrom) {
				throw new TypeError('Factory requires options "id" and "stateFrom" to be supplied together.');
			}

					if (tab.state.closeable) {
						nodes.push(h('div.tab-close', { onclick: tabListeners.onclickTabCloseListener }, [ 'X' ]));
					}
					return nodes;
				}

				/* We need to generate a set of VDom the represents the buttons */
				/* TODO: Allow the location of the tab bar to be set (top/left/bottom/right) */
				const tabs: VNode[] = [];
				let childrenNodes = childrenNodesCache.get(tabbed);

				/* Best to discard the childrenNodes array if the sizes don't match, otherwise
				 * we can get some vdom generation issues when adding or removing tabs */
				if (!childrenNodes || childrenNodes.length !== tabbed.children.size) {
					childrenNodes = Array(tabbed.children.size);
					childrenNodesCache.set(tabbed, childrenNodes);
				}

				tabbed.children.forEach((tab, key) => {
					const isActiveTab = tab === activeTab;
					if (isActiveTab || (childrenNodes[key] && childrenNodes[key].properties.classes['visible'])) {
						tab.invalidate();
						const tabVNode = tab.render();
						tabVNode.properties.classes['visible'] = isActiveTab;
						childrenNodes[key] = tabVNode;
					}
					/* else, this tab isn't active and hasn't been previously rendered */

					tabs.push(h(tabbed.tagNames.tab, { key: tab, classes: { active: isActiveTab } }, getTabChildVNode(tab)));
				});

import compose from 'dojo-compose/compose';
import { MemoryStore } from 'dojo-widgets/util/createMemoryStore';

const idToWidgetMap = new Map<string, Child>();
const widgetToIdMap = new WeakMap<Child, string>();

interface TodoRegistryOptions {
	widgetStore: MemoryStore<Object>;
}

const todoRegistryFactory = compose({
	get(id: string): Promise<Child> {
		let widget: Child = idToWidgetMap.get(id);
		if (!widget) {
			widget = createTodoItem({id, stateFrom: this.widgetStore});
			widgetToIdMap.set(widget, id);
			idToWidgetMap.set(id, widget);
		}
		return Promise.resolve(widget);
	},
	identify(value: Child): string {
		return widgetToIdMap.get(value);
	}
}, function (todoRegistry: any, options: any) {
	if (options) {
		for (let key in options) {
			todoRegistry[key] = options[key];
		}
	}
});

}, (instance) => {
	handlesWeakMap.set(instance, []);
});

	}
}

const createFocusableTextInput: FocusableTextInputFactory = createTextInput
	.mixin({
		mixin: createFormFieldMixin,
		aspectAdvice: {
			before: {
				getNodeAttributes(overrides: VNodeProperties = {}) {
					const focusableTextInput: FocusableTextInput = this;

					overrides.afterUpdate = afterUpdateFunctions.get(focusableTextInput);

					return [overrides];
				}
			}
		},
		initialize(instance) {
			instance.own(instance.on('input', (event: TypedTargetEvent<HTMLInputElement>) => {
				instance.value = event.target.value;
			}));
			afterUpdateFunctions.set(instance, (element: any) => afterUpdate(instance, element));
		}
	})
	.extend({
		type: 'text',
		tagName: 'input'
	});

export default createFocusableTextInput;