114 lines
4.0 KiB
JavaScript
114 lines
4.0 KiB
JavaScript
"use strict";
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// Configure ZeroClipboard
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var zeroClipBoard = require('zeroclipboard');
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zeroClipBoard.config({
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swfPath: '/ZeroClipboard.swf'
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});
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window.setupPageShow = module.exports = function (pageId) {
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// Set up pointer
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var $pointer = $('#pointer').detach();
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var $pointerInner = $pointer.children('div.pointer').first();
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var isSelection = false;
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// Select all contents on input click
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$pointer.on('click', 'input', function (e) {
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$(this).select();
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e.stopPropagation();
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});
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// Set up copy-to-clipboard
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new zeroClipBoard($pointer.find('button').first()[0]);
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// Hide pointer when clicking away
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$(document.body).find('*').on('click focus', function (e) {
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if (!isSelection) {
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$pointer.detach();
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}
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});
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// Show pointer when selecting a single block of tagged content
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$('.page-content [id^="bkmrk"]').on('mouseup keyup', function (e) {
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e.stopPropagation();
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var selection = window.getSelection();
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if (selection.toString().length === 0) return;
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// Show pointer and set link
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var $elem = $(this);
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var link = window.location.protocol + "//" + window.location.host + '/link/' + pageId + '#' + $elem.attr('id');
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$pointer.find('input').val(link);
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$pointer.find('button').first().attr('data-clipboard-text', link);
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$elem.before($pointer);
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$pointer.show();
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// Set pointer to sit near mouse-up position
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var pointerLeftOffset = (e.pageX - $elem.offset().left - ($pointerInner.width() / 2));
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if (pointerLeftOffset < 0) pointerLeftOffset = 0;
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var pointerLeftOffsetPercent = (pointerLeftOffset / $elem.width()) * 100;
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$pointerInner.css('left', pointerLeftOffsetPercent + '%');
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isSelection = true;
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setTimeout(() => {
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isSelection = false;
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}, 100);
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});
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// Go to, and highlight if necessary, the specified text.
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function goToText(text) {
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var idElem = $('.page-content #' + text).first();
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if (idElem.length !== 0) {
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idElem.smoothScrollTo();
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idElem.css('background-color', 'rgba(244, 249, 54, 0.25)');
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} else {
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$('.page-content').find(':contains("' + text + '")').smoothScrollTo();
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}
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}
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// Check the hash on load
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if (window.location.hash) {
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var text = window.location.hash.replace(/\%20/g, ' ').substr(1);
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goToText(text);
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}
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// Make the book-tree sidebar stick in view on scroll
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var $window = $(window);
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var $bookTree = $(".book-tree");
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// Check the page is scrollable and the content is taller than the tree
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var pageScrollable = ($(document).height() > $window.height()) && ($bookTree.height() < $('.page-content').height());
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// Get current tree's width and header height
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var headerHeight = $("#header").height() + $(".toolbar").height();
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var isFixed = $window.scrollTop() > headerHeight;
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var bookTreeWidth = $bookTree.width();
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// Function to fix the tree as a sidebar
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function stickTree() {
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$bookTree.width(bookTreeWidth + 48 + 15);
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$bookTree.addClass("fixed");
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isFixed = true;
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}
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// Function to un-fix the tree back into position
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function unstickTree() {
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$bookTree.css('width', 'auto');
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$bookTree.removeClass("fixed");
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isFixed = false;
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}
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// Checks if the tree stickiness state should change
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function checkTreeStickiness(skipCheck) {
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var shouldBeFixed = $window.scrollTop() > headerHeight;
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if (shouldBeFixed && (!isFixed || skipCheck)) {
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stickTree();
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} else if (!shouldBeFixed && (isFixed || skipCheck)) {
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unstickTree();
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}
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}
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// If the page is scrollable and the window is wide enough listen to scroll events
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// and evaluate tree stickiness.
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if (pageScrollable && $window.width() > 1000) {
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$window.scroll(function() {
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checkTreeStickiness(false);
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});
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checkTreeStickiness(true);
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}
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};
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