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Die Seite wurde neu angelegt: „* * Copyright (c) 2021-present, 安忆. * * @author 安忆 (https://zh.wikipedia.org/wiki/User:安忆) * @file scrollUpButton.js * @license GPL v3: $(function scrollUpButton() { var $window = $(window); var scrollButtonIcon = '/w/images/7/72/Font_Awesome_5_regular_arrow-circle-up_blue.webp'; var changeOpacity = function changeOpacity(event) { event.currentTarget.style.opacity = event.type === 'mouseenter' ? '1' : '0.7'; }; var scro…“

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/**
* Copyright (c) 2021-present, 安忆.
*
* @author 安忆 (https://zh.wikipedia.org/wiki/User:安忆)
* @file scrollUpButton.js
* @license GPL v3
*/
$(function scrollUpButton() {
var $window = $(window);
var scrollButtonIcon = '/w/images/7/72/Font_Awesome_5_regular_arrow-circle-up_blue.webp';
var changeOpacity = function changeOpacity(event) {
event.currentTarget.style.opacity = event.type === 'mouseenter' ? '1' : '0.7';
};
var scrollTop = function scrollTop(height) {
$('html, body').animate({
scrollTop: height
}, 660);
};
var $scrollButton = $('<span>Top</span><img>').addClass('noprint').attr({
draggable: 'false',
src: scrollButtonIcon
}).css({
display: 'none',
position: 'fixed',
right: '18px',
cursor: 'pointer',
opacity: '0.7',
'-moz-user-select': 'none',
'-webkit-user-select': 'none',
'user-select': 'none'
});
var $scrollDownButton = $scrollButton.clone().attr('id', 'scrollDownButton').css('transform', 'rotate(180deg)').on('click', function () {
scrollTop(($(document).height() || 0) - ($window.height() || 0));
});
var $scrollUpButton = $scrollButton.clone().attr('id', 'scrollUpButton').on('click', function () {
scrollTop(0);
});
var $elements = [$scrollDownButton, $scrollUpButton];
$elements.forEach(function ($element) {
$element.on('mouseenter mouseleave', changeOpacity).appendTo(document.body);
});
var fadeIn = function fadeIn() {
$elements.forEach(function ($element) {
$element.fadeIn('slow');
});
};
var fadeOut = function fadeOut() {
$elements.forEach(function ($element) {
$element.fadeOut('slow');
});
};
var left = function left(px) {
$elements.forEach(function ($element) {
$element.css('left', px ? px + 'px' : 'unset');
});
};
var right = function right(px) {
$elements.forEach(function ($element) {
$element.css('right', px ? px + 'px' : 'unset');
});
};
var mediaQueryList = window.matchMedia('(min-width: 1400px)');
var isVector2022Match = false;
if (mw.config.get('skin') === 'vector-2022') {
var mediaQueryHandler = function mediaQueryHandler(event) {
if (event.matches) {
isVector2022Match = true;
right(8);
} else {
isVector2022Match = false;
right(18);
}
};
// Check mediaQueryList as Safari doesn't have support for mediaQueryList.addEventListener
try {
mediaQueryList.addEventListener('change', mediaQueryHandler);
} catch (e) {
mediaQueryList.addListener(mediaQueryHandler);
}
if (mediaQueryList.matches) {
isVector2022Match = true;
right(8);
}
}
var scrollButtonTimer;
$window.on('scroll selectionchange', function () {
var dingHeight = $('#bluedeck_ding>div').height() || 0;
var vector2022Height = isVector2022Match ? 24 : 0;
$scrollDownButton.css('bottom', dingHeight + vector2022Height + 24 + 'px');
$scrollUpButton.css('bottom', dingHeight + vector2022Height + 65 + 'px');
if (mw.config.get('wgGEHelpPanelEnabled') && $('#mw-ge-help-panel-cta-button').length || $('#cat_a_lot').length || $('#proveit').length || $('.wordcount').length) {
left(10);
} else {
left();
}
var windowScrollTop = $window.scrollTop() || 0;
if (windowScrollTop > 60) {
fadeIn();
} else {
fadeOut();
}
clearTimeout(scrollButtonTimer);
scrollButtonTimer = setTimeout(fadeOut, 2000);
});
$elements.forEach(function ($element) {
$element.on('mouseenter', function () {
clearTimeout(scrollButtonTimer);
});
});
});

MediaWiki:ScrollUpButton.js - Versionsgeschichte