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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | 3x 3x 3x 3x 3x 9x 13x 13x 13x 13x 13x 13x 13x 40x 3x | import classMetadataRegistry from "../helpers/classMetadataRegistry";
import { CustomElementPropertyMetadata, CustomElementStateMetadata } from "../interfaces";
import AttributeChangeHandlerMixin from "./AttributeChangeHandlerMixin";
import StateChangeHandlerMixin from "./StateChangeHandlerMixin";
import StylesMetadataInitializerMixin from "./StylesMetadataInitializerMixin";
/**
* Initializes a web component type (not instance) from the metadata provided
* @param Base The base class to extend
* @returns The mixin class
*/
const MetadataInitializerMixin = Base =>
//@ts-ignore
class MetadataInitializer extends
StylesMetadataInitializerMixin(
StateChangeHandlerMixin( // This one extends from StateMetadataInitializer
AttributeChangeHandlerMixin( // This one extends from PropertyMetadataInitializer
Base
)
)
) {
static get observedAttributes(): string[] {
// Initialize the metadata
Eif (!classMetadataRegistry.has(this)) {
classMetadataRegistry.set(this, {
properties: new Map<string, CustomElementPropertyMetadata>(),
observedAttributes: [],
state: new Map<string, CustomElementStateMetadata>(),
styles: []
});
}
const {
metadata
} = this;
(this as any).initalizeProperties(metadata);
(this as any).initializeState(metadata);
(this as any).initializeStyles(metadata);
return metadata.observedAttributes;
}
static get metadata() {
return classMetadataRegistry.get(this);
}
}
export default MetadataInitializerMixin;
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