vuepress-plugin-smooth-scroll/lib/enhanceApp.js

VuePress plugin for smooth scrolling

// fork from vue-router@3.0.2
// src/util/scroll.js
function getElementPosition(el) {
    const docEl = document.documentElement;
    const docRect = docEl.getBoundingClientRect();
    const elRect = el.getBoundingClientRect();
    return {
        x: elRect.left - docRect.left,
        y: elRect.top - docRect.top,
    };
}
const enhanceApp = ({ Vue, router }) => {
    router.options.scrollBehavior = (to, from, savedPosition) => {
        if (savedPosition) {
            return window.scrollTo({
                top: savedPosition.y,
                behavior: 'smooth',
            });
        }
        else if (to.hash) {
            if (Vue.$vuepress.$get('disableScrollBehavior')) {
                return;
            }
            const targetAnchor = to.hash.slice(1);
            const targetElement = document.getElementById(targetAnchor) ||
                document.querySelector(`[name='${targetAnchor}']`);
            if (targetElement) {
                return window.scrollTo({
                    top: getElementPosition(targetElement).y,
                    behavior: 'smooth',
                });
            }
        }
        else {
            return window.scrollTo({
                top: 0,
                behavior: 'smooth',
            });
        }
    };
};
export default enhanceApp;
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