本文整理汇总了TypeScript中@angular/core/src/view/index.createEmbeddedView函数的典型用法代码示例。如果您正苦于以下问题:TypeScript createEmbeddedView函数的具体用法?TypeScript createEmbeddedView怎么用?TypeScript createEmbeddedView使用的例子?那么, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了createEmbeddedView函数的3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 attach and detach embedded views', () => {
const {view: parentView, rootNodes} = createAndGetRootNodes(compViewDef([
elementDef(NodeFlags.None, null, null, 2, 'div'),
anchorDef(NodeFlags.HasEmbeddedViews, null, null, 0, embeddedViewDef([
elementDef(NodeFlags.None, null, null, 0, 'span', {'name': 'child0'})
])),
anchorDef(NodeFlags.None, null, null, 0, embeddedViewDef([
elementDef(NodeFlags.None, null, null, 0, 'span', {'name': 'child1'})
]))
]));
const childView0 = createEmbeddedView(parentView, parentView.def.nodes[1]);
const childView1 = createEmbeddedView(parentView, parentView.def.nodes[2]);
const rootChildren = getDOM().childNodes(rootNodes[0]);
attachEmbeddedView(asElementData(parentView, 1), 0, childView0);
attachEmbeddedView(asElementData(parentView, 1), 1, childView1);
// 2 anchors + 2 elements
expect(rootChildren.length).toBe(4);
expect(getDOM().getAttribute(rootChildren[1], 'name')).toBe('child0');
expect(getDOM().getAttribute(rootChildren[2], 'name')).toBe('child1');
detachEmbeddedView(asElementData(parentView, 1), 1);
detachEmbeddedView(asElementData(parentView, 1), 0);
expect(getDOM().childNodes(rootNodes[0]).length).toBe(2);
});
示例2: it
it('should dirty check embedded views', () => {
let childValue = 'v1';
const parentContext = new Object();
const childContext = new Object();
const updater = jasmine.createSpy('updater').and.callFake(
(updater: NodeUpdater, view: ViewData) => updater.checkInline(view, 0, childValue));
const {view: parentView, rootNodes} = createAndGetRootNodes(
compViewDef([
elementDef(NodeFlags.None, 1, 'div'),
anchorDef(
NodeFlags.HasEmbeddedViews, 0,
embeddedViewDef(
[elementDef(
NodeFlags.None, 0, 'span', null,
[[BindingType.ElementAttribute, 'name', SecurityContext.NONE]])],
updater))
]),
parentContext);
const childView0 = createEmbeddedView(parentView, parentView.def.nodes[1], childContext);
const rootEl = rootNodes[0];
attachEmbeddedView(parentView.nodes[1], 0, childView0);
checkAndUpdateView(parentView);
expect(updater).toHaveBeenCalled();
// component
expect(updater.calls.mostRecent().args[2]).toBe(parentContext);
// view context
expect(updater.calls.mostRecent().args[3]).toBe(childContext);
updater.calls.reset();
checkNoChangesView(parentView);
expect(updater).toHaveBeenCalled();
// component
expect(updater.calls.mostRecent().args[2]).toBe(parentContext);
// view context
expect(updater.calls.mostRecent().args[3]).toBe(childContext);
childValue = 'v2';
expect(() => checkNoChangesView(parentView))
.toThrowError(
`Expression has changed after it was checked. Previous value: 'v1'. Current value: 'v2'.`);
});
示例3: it
it('should include projected nodes when attaching / detaching embedded views', () => {
const {view, rootNodes} = createAndGetRootNodes(compViewDef(hostElDef([textDef(0, ['a'])], [
elementDef(NodeFlags.None, null, null, 1, 'div'),
anchorDef(NodeFlags.HasEmbeddedViews, null, 0, 0, embeddedViewDef([ngContentDef(null, 0)])),
])));
const componentView = asProviderData(view, 1).componentView;
const view0 = createEmbeddedView(componentView, componentView.def.nodes[1]);
attachEmbeddedView(asElementData(componentView, 1), 0, view0);
expect(getDOM().childNodes(getDOM().firstChild(rootNodes[0])).length).toBe(2);
expect(getDOM().childNodes(getDOM().firstChild(rootNodes[0]))[1])
.toBe(asTextData(view, 2).renderText);
detachEmbeddedView(asElementData(componentView, 1), 0);
expect(getDOM().childNodes(getDOM().firstChild(rootNodes[0])).length).toBe(1);
});