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import type Swup from '../Swup.js';
/**
* Utility function to validate and run the global option 'resolveUrl'
* @param {string} url
* @returns {string} the resolved url
*/
export function resolveUrl(this: Swup, url: string): string {
if (typeof this.options.resolveUrl !== 'function') {
console.warn(`[swup] options.resolveUrl expects a callback function.`);
return url;
}
const result = this.options.resolveUrl(url);
if (!result || typeof result !== 'string') {
console.warn(`[swup] options.resolveUrl needs to return a url`);
return url;
}
if (result.startsWith('//') || result.startsWith('http')) {
console.warn(`[swup] options.resolveUrl needs to return a relative url`);
return url;
}
return result;
}
/**
* Compares the resolved version of two paths and returns true if they are the same
* @param {string} url1
* @param {string} url2
* @returns {boolean}
*/
export function isSameResolvedUrl(this: Swup, url1: string, url2: string): boolean {
return this.resolveUrl(url1) === this.resolveUrl(url2);
}
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