14094812696

Committed 26 Mar 2025 10:37PM UTC coverage: 71.929% (-26.1%) from 98.002%

Build # 14094812696

Build Type

Pull #5095

github

Committed by

web-flow

Commit Message

Merge 2c0bd48e0 into 3184c1e6a

Pull Request Pull Request #5095: feat(accordion,base,theme): initial global system reporting

Run Details

168 of 203 branches covered (82.76%)

Branch coverage included in aggregate %.

11 of 14 new or added lines in 2 files covered. (78.57%)

656 existing lines in 5 files now uncovered.

1659 of 2337 relevant lines covered (70.99%)

305.59 hits per line

Source File
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95.12

/tools/reactive-controllers/src/ElementResolution.ts

/*
Copyright 2022 Adobe. All rights reserved.
This file is licensed to you under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. You may obtain a copy
of the License at http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under
the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
OF ANY KIND, either express or implied. See the License for the specific language
governing permissions and limitations under the License.
*/

import type { ReactiveController, ReactiveElement } from 'lit';
export const elementResolverUpdatedSymbol = Symbol('element resolver updated');

export class ElementResolutionController implements ReactiveController {
    get element(): HTMLElement | null {
        return this._element;
    }

    set element(element: HTMLElement | null) {
        if (element === this.element) return;
        const previous = this.element;
        this._element = element;
        // requestUpdate leveraging the exported Symbol() so that the
        // changes can be easily tracked in the host element.
        this.host.requestUpdate(elementResolverUpdatedSymbol, previous);
    }

    private _element: HTMLElement | null = null;

    private host!: ReactiveElement;

    private observer!: MutationObserver;

    get selector(): string {
        return this._selector;
    }

    set selector(selector: string) {
        if (selector === this.selector) return;
        this.releaseElement();
        this._selector = selector;
        this.resolveElement();
    }

    private _selector = '';

    get selectorAsId(): string {
        return this.selector.slice(1);
    }

    get selectorIsId(): boolean {
        return !!this.selector && this.selector.startsWith('#');
    }

    constructor(
        host: ReactiveElement,
        { selector }: { selector: string } = { selector: '' }
    ) {
        this.host = host;
        this.selector = selector;
        this.observer = new MutationObserver(this.mutationCallback);
        // Add the controller after the MutationObserver has been created in preparation
        // for the `hostConnected`/`hostDisconnected` callbacks to be run.
        this.host.addController(this);
    }

    protected mutationCallback: MutationCallback = (mutationList) => {
        let needsResolution = false;
        mutationList.forEach((mutation) => {
            if (needsResolution) return;
            if (mutation.type === 'childList') {
                const currentElementRemoved =
                    this.element &&
                    [...mutation.removedNodes].includes(this.element);
                const matchingElementAdded =
                    !!this.selector &&
                    ([...mutation.addedNodes] as HTMLElement[]).some(
                        this.elementIsSelected
                    );
                needsResolution =
                    needsResolution ||
                    currentElementRemoved ||
                    matchingElementAdded;
            }
            if (mutation.type === 'attributes') {
                const attributeChangedOnCurrentElement =
                    mutation.target === this.element;
                const attributeChangedOnMatchingElement =
                    !!this.selector &&
                    this.elementIsSelected(mutation.target as HTMLElement);
                needsResolution =
                    needsResolution ||
                    attributeChangedOnCurrentElement ||
                    attributeChangedOnMatchingElement;
            }
        });
        if (needsResolution) {
            this.resolveElement();
        }
    };

    public hostConnected(): void {
        this.resolveElement();
        this.observer.observe(this.host.getRootNode(), {
            subtree: true,
            childList: true,
            attributes: true,
        });
    }

    public hostDisconnected(): void {
        this.releaseElement();
        this.observer.disconnect();
    }

    private resolveElement(): void {
        if (!this.selector) {
            this.releaseElement();
            return;
        }

        const parent = this.host.getRootNode() as ShadowRoot;
        this.element = this.selectorIsId
            ? (parent.getElementById(this.selectorAsId) as HTMLElement)
            : (parent.querySelector(this.selector) as HTMLElement);
    }

    private releaseElement(): void {
        this.element = null;
    }

    private elementIsSelected = (el: HTMLElement): boolean => {
        return this.selectorIsId
            ? el?.id === this.selectorAsId
            : el?.matches?.(this.selector);
    };
}

1	/*	1✔
2	Copyright 2022 Adobe. All rights reserved.	1✔
3	This file is licensed to you under the Apache License, Version 2.0 (the "License");	1✔
4	you may not use this file except in compliance with the License. You may obtain a copy	1✔
5	of the License at http://www.apache.org/licenses/LICENSE-2.0	1✔
6		1✔
7	Unless required by applicable law or agreed to in writing, software distributed under	1✔
8	the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS	1✔
9	OF ANY KIND, either express or implied. See the License for the specific language	1✔
10	governing permissions and limitations under the License.	1✔
11	*/	1✔
12		1✔
13	import type { ReactiveController, ReactiveElement } from 'lit';	1✔
14	export const elementResolverUpdatedSymbol = Symbol('element resolver updated');	1✔
15		1✔
16	export class ElementResolutionController implements ReactiveController {	1✔
17	get element(): HTMLElement \| null {	1✔
18	return this._element;	1✔
19	}	1✔
20		1✔
21	set element(element: HTMLElement \| null) {	1✔
22	if (element === this.element) return;	7✔
23	const previous = this.element;	5✔
24	this._element = element;	5✔
25	// requestUpdate leveraging the exported Symbol() so that the	5✔
26	// changes can be easily tracked in the host element.	5✔
27	this.host.requestUpdate(elementResolverUpdatedSymbol, previous);	5✔
28	}	7✔
29		1✔
30	private _element: HTMLElement \| null = null;	1✔
31		1✔
32	private host!: ReactiveElement;	1✔
33		1✔
34	private observer!: MutationObserver;	1✔
35		1✔
36	get selector(): string {	1✔
37	return this._selector;	32✔
38	}	32✔
39		1✔
40	set selector(selector: string) {	1✔
41	if (selector === this.selector) return;	2✔
42	this.releaseElement();	1✔
43	this._selector = selector;	1✔
44	this.resolveElement();	1✔
45	}	2✔
46		1✔
47	private _selector = '';	1✔
48		1✔
49	get selectorAsId(): string {	1✔
UNCOV 50	return this.selector.slice(1);	×
UNCOV 51	}	×
52		1✔
53	get selectorIsId(): boolean {	1✔
54	return !!this.selector && this.selector.startsWith('#');	7✔
55	}	7✔
56		1✔
57	constructor(	1✔
58	host: ReactiveElement,	1✔
59	{ selector }: { selector: string } = { selector: '' }	1✔
60	) {	1✔
61	this.host = host;	1✔
62	this.selector = selector;	1✔
63	this.observer = new MutationObserver(this.mutationCallback);	1✔
64	// Add the controller after the MutationObserver has been created in preparation	1✔
65	// for the `hostConnected`/`hostDisconnected` callbacks to be run.	1✔
66	this.host.addController(this);	1✔
67	}	1✔
68		1✔
69	protected mutationCallback: MutationCallback = (mutationList) => {	1✔
70	let needsResolution = false;	3✔
71	mutationList.forEach((mutation) => {	3✔
72	if (needsResolution) return;	4!
73	if (mutation.type === 'childList') {	4✔
74	const currentElementRemoved =	2✔
75	this.element &&	2✔
76	[...mutation.removedNodes].includes(this.element);	2✔
77	const matchingElementAdded =	2✔
78	!!this.selector &&	2✔
79	([...mutation.addedNodes] as HTMLElement[]).some(	2✔
80	this.elementIsSelected	2✔
81	);	2✔
82	needsResolution =	2✔
83	needsResolution \|\|	2✔
84	currentElementRemoved \|\|	2✔
85	matchingElementAdded;	2✔
86	}	2✔
87	if (mutation.type === 'attributes') {	4✔
88	const attributeChangedOnCurrentElement =	2✔
89	mutation.target === this.element;	2✔
90	const attributeChangedOnMatchingElement =	2✔
91	!!this.selector &&	2✔
92	this.elementIsSelected(mutation.target as HTMLElement);	2✔
93	needsResolution =	2✔
94	needsResolution \|\|	2✔
95	attributeChangedOnCurrentElement \|\|	2✔
96	attributeChangedOnMatchingElement;	1✔
97	}	2✔
98	});	3✔
99	if (needsResolution) {	3✔
100	this.resolveElement();	3✔
101	}	3✔
102	};	3✔
103		1✔
104	public hostConnected(): void {	1✔
105	this.resolveElement();	1✔
106	this.observer.observe(this.host.getRootNode(), {	1✔
107	subtree: true,	1✔
108	childList: true,	1✔
109	attributes: true,	1✔
110	});	1✔
111	}	1✔
112		1✔
113	public hostDisconnected(): void {	1✔
114	this.releaseElement();	1✔
115	this.observer.disconnect();	1✔
116	}	1✔
117		1✔
118	private resolveElement(): void {	1✔
119	if (!this.selector) {	5✔
120	this.releaseElement();	1✔
121	return;	1✔
122	}	1✔
123		4✔
124	const parent = this.host.getRootNode() as ShadowRoot;	4✔
125	this.element = this.selectorIsId	4!
UNCOV 126	? (parent.getElementById(this.selectorAsId) as HTMLElement)	✔
127	: (parent.querySelector(this.selector) as HTMLElement);	4✔
128	}	5✔
129		1✔
130	private releaseElement(): void {	1✔
131	this.element = null;	3✔
132	}	3✔
133		1✔
134	private elementIsSelected = (el: HTMLElement): boolean => {	1✔
135	return this.selectorIsId	3!
UNCOV 136	? el?.id === this.selectorAsId	×
137	: el?.matches?.(this.selector);	3!
138	};	3✔
139	}	1✔

adobe / spectrum-web-components / 14094812696

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