Simon Brooke
e2e06d0244
Also brought up to date, and fixed some stylistic errors noted by Kondo, and set the default locale to the runtime default locale.
113 lines
3.4 KiB
JavaScript
113 lines
3.4 KiB
JavaScript
function visibleInParent(element) {
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var position = $(element).position().top
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return position > -50 && position < ($(element).offsetParent().height() - 50)
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}
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function hasFragment(link, fragment) {
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return $(link).attr("href").indexOf("#" + fragment) != -1
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}
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function findLinkByFragment(elements, fragment) {
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return $(elements).filter(function(i, e) { return hasFragment(e, fragment)}).first()
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}
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function scrollToCurrentVarLink(elements) {
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var elements = $(elements);
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var parent = elements.offsetParent();
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if (elements.length == 0) return;
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var top = elements.first().position().top;
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var bottom = elements.last().position().top + elements.last().height();
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if (top >= 0 && bottom <= parent.height()) return;
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if (top < 0) {
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parent.scrollTop(parent.scrollTop() + top);
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}
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else if (bottom > parent.height()) {
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parent.scrollTop(parent.scrollTop() + bottom - parent.height());
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}
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}
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function setCurrentVarLink() {
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$('.secondary a').parent().removeClass('current')
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$('.anchor').
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filter(function(index) { return visibleInParent(this) }).
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each(function(index, element) {
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findLinkByFragment(".secondary a", element.id).
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parent().
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addClass('current')
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});
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scrollToCurrentVarLink('.secondary .current');
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}
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var hasStorage = (function() { try { return localStorage.getItem } catch(e) {} }())
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function scrollPositionId(element) {
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var directory = window.location.href.replace(/[^\/]+\.html$/, '')
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return 'scroll::' + $(element).attr('id') + '::' + directory
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}
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function storeScrollPosition(element) {
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if (!hasStorage) return;
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localStorage.setItem(scrollPositionId(element) + "::x", $(element).scrollLeft())
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localStorage.setItem(scrollPositionId(element) + "::y", $(element).scrollTop())
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}
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function recallScrollPosition(element) {
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if (!hasStorage) return;
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$(element).scrollLeft(localStorage.getItem(scrollPositionId(element) + "::x"))
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$(element).scrollTop(localStorage.getItem(scrollPositionId(element) + "::y"))
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}
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function persistScrollPosition(element) {
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recallScrollPosition(element)
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$(element).scroll(function() { storeScrollPosition(element) })
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}
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function sidebarContentWidth(element) {
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var widths = $(element).find('.inner').map(function() { return $(this).innerWidth() })
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return Math.max.apply(Math, widths)
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}
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function calculateSize(width, snap, margin, minimum) {
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if (width == 0) {
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return 0
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}
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else {
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return Math.max(minimum, (Math.ceil(width / snap) * snap) + (margin * 2))
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}
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}
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function resizeSidebars() {
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var primaryWidth = sidebarContentWidth('.primary')
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var secondaryWidth = 0
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if ($('.secondary').length != 0) {
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secondaryWidth = sidebarContentWidth('.secondary')
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}
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// snap to grid
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primaryWidth = calculateSize(primaryWidth, 32, 13, 160)
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secondaryWidth = calculateSize(secondaryWidth, 32, 13, 160)
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$('.primary').css('width', primaryWidth)
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$('.secondary').css('width', secondaryWidth).css('left', primaryWidth + 1)
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if (secondaryWidth > 0) {
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$('#content').css('left', primaryWidth + secondaryWidth + 2)
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}
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else {
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$('#content').css('left', primaryWidth + 1)
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}
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}
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$(window).ready(resizeSidebars)
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$(window).ready(setCurrentVarLink)
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$(window).ready(function() { persistScrollPosition('.primary')})
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$(window).ready(function() {
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$('#content').scroll(setCurrentVarLink)
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$(window).resize(setCurrentVarLink)
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})
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