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Queries allow a directive to inject a live list of directives of a given type from its LightDom. The injected list is Iterable (in JS and Dart). It will be Observable when Observables are support in JS, for now it maintains a simple list of onChange callbacks API. To support queries, element injectors now maintain a list of child injectors in the correct DOM order (dynamically updated by viewports). For performance reasons we allow only 3 active queries in an injector subtree. The feature adds no overhead to the application when not used. Queries walk the injector tree only during dynamic view addition/removal as triggered by viewport directives. Syncs changes between viewContainer on the render and logic sides. Closes #792 |
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| change_detection | ||
| core | ||
| di | ||
| directives | ||
| dom | ||
| facade | ||
| forms | ||
| mock | ||
| reflection | ||
| render/dom | ||
| services | ||
| test_lib | ||
| transform | ||