47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
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class DomHelper {
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static isVisible(element) {
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return element.offsetParent !== null;
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}
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static openNewTab(url) {
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let win = window.open("");
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win.opener = null;
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win.location = url;
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win.focus();
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}
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static scrollPageTo(element) {
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let windowScrollPosition = window.pageYOffset;
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let windowHeight = document.documentElement.clientHeight;
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let viewportPosition = windowScrollPosition + windowHeight;
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let itemBottomPosition = element.offsetTop + element.offsetHeight;
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if (viewportPosition - itemBottomPosition < 0 || viewportPosition - element.offsetTop > windowHeight) {
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window.scrollTo(0, element.offsetTop - 10);
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}
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}
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static getVisibleElements(selector) {
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let elements = document.querySelectorAll(selector);
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let result = [];
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for (let i = 0; i < elements.length; i++) {
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if (this.isVisible(elements[i])) {
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result.push(elements[i]);
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}
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}
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return result;
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}
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static findParent(element, selector) {
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for (; element && element !== document; element = element.parentNode) {
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if (element.classList.contains(selector)) {
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return element;
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}
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}
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return null;
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}
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}
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