User:Quiddity/common.js

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The accompanying .css page for this skin is at User:Quiddity/common.css.

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importScript('User:Mvolz/veCiteFromURLLoader.js');

/* User:Zhaofeng Li/Reflinks.js */
importScript( 'User:Zhaofeng Li/Reflinks.js' );// Backlink: [[User:Zhaofeng Li/Reflinks.js]]

	

	

    // Proof-of-concept of an "article map" sidebar for Wikipedia articles.
    // Displays a scaled-down version of the page on the right side of the window.
     
    // Doesn't work correctly on Chrome (and Chrome-like browsers) because of its
    // numerous bugs, doesn't work on Internet Explorer because of its lack of
    // support for advanced SVG features.
     
    // Works on Firefox, mostly works on Opera 12.
     
    // By Bartosz Dziewoński (Matma Rex), released under MIT license.
    // Little attention was paid to details and code quality. Beware.
    // version 1.0
     
     
    /*global $ */
     
    var sidebarWidth = 150;
     
    $('#content')
            .css('margin-right', sidebarWidth);
     
    var contentWidth = $('#content').outerWidth();
    var scale = sidebarWidth / contentWidth;
    var contentHeight = $('#content').outerHeight();
    var sidebarHeight = contentHeight * scale;
    var windowHeight = $(window).height();
     
    var contentTop = $('#content').offset().top;
    var contentBottom = contentTop + contentHeight - windowHeight;
     
    var $svg = $( '<div>' )
            .css({
                    position: 'fixed',
                    overflow: 'hidden',
                    top: '0',
                    bottom: '0',
                    right: '0',
                    width: sidebarWidth
            })
            .insertAfter('#content')
            .html(
                    '<svg width="'+sidebarWidth+'" height="'+sidebarHeight+'">' +
                            '<g transform="scale('+scale+')">' +
                                    '<foreignObject width="'+contentWidth+'" height="'+contentHeight+'">' +
                                    '</foreignObject>' +
                            '</g>' +
                    '</svg>'
            );
     
    $svg.find( 'foreignObject' ).append(
            $('#content').clone().attr('id', '').css({
                    'margin-right': 0,
                    'margin-left': 0
            })
    );
     
    // overlay to prevent clicking and hover effects
    $svg.append( $('<div>')
            .css({
                    position: 'absolute',
                    left: 0,
                    top: 0,
                    right: 0,
                    bottom: 0
            }) );
     
    var $indicator = $('<div>')
            .css({
                    position: 'absolute',
                    background: 'rgba(0,0,0,0.3)',
                    left: 0,
                    top: 0,
                    width: sidebarWidth,
                    height: windowHeight * scale
            });
    $svg.append($indicator);
     
    var maxContentScrollTop = document.documentElement.scrollHeight - windowHeight;
    var needSidebarScrolling = sidebarHeight > windowHeight;
    var maxSidebarScrollTop = sidebarHeight - windowHeight;
     
    var state = 'top'; // || 'middle' || 'bottom'
    var sidebarScrollTop = 0;
    function scrollHandler() {
            if(document.documentElement.scrollTop < contentTop) {
                    setTimeout( function () {
                            var top = Math.max(0, contentTop - document.documentElement.scrollTop);
                            $svg.css('top', top);
                            state = (top === 0 ? 'middle' : 'top');
                    }, 50 );
            } else if(needSidebarScrolling && document.documentElement.scrollTop > contentBottom) {
                    setTimeout( function () {
                            var bottom = Math.max(0, document.documentElement.scrollTop - contentBottom);
                            $svg.css('bottom', bottom);
                            $svg.css('margin-top', -bottom);
                            state = (bottom === 0 ? 'middle' : 'bottom');
                    }, 50 );
            } else {
                    if(state !== 'middle') {
                            $svg.css('top', 0);
                            $svg.css('bottom', 0);
                            $svg.css('margin-top', 0);
                            state = 'middle';
                    }
            }
           
            $indicator.css('top', document.documentElement.scrollTop * scale);
           
            if(needSidebarScrolling) {
                    var scrollPercentage = document.documentElement.scrollTop / maxContentScrollTop;
                    sidebarScrollTop = scrollPercentage * maxSidebarScrollTop;
                    $svg.find('svg').css('margin-top', -sidebarScrollTop );
                    $indicator.css('margin-top', -sidebarScrollTop );
            }
    }
    $(window).on('scroll', scrollHandler);
    scrollHandler();
     
    function clickHandler(e) {
            e.stopPropagation();
            e.preventDefault();
           
            var ycoord = sidebarScrollTop + e.clientY;
            var scrollTop = (ycoord / scale) - windowHeight/2;
           
            $(document.documentElement).animate({ scrollTop: scrollTop }, 'fast');
            scrollHandler();
    }
    $svg[0].addEventListener( 'click', clickHandler, true );