BookStack/resources/assets/js/pages/page-show.js
2017-05-28 13:16:21 +01:00

166 lines
5.9 KiB
JavaScript

"use strict";
// Configure ZeroClipboard
const Clipboard = require("clipboard");
const Code = require('../code');
let setupPageShow = window.setupPageShow = function (pageId) {
Code.highlight();
if (!pageId) return;
// Set up pointer
let $pointer = $('#pointer').detach();
let pointerShowing = false;
let $pointerInner = $pointer.children('div.pointer').first();
let isSelection = false;
let pointerModeLink = true;
let pointerSectionId = '';
// Select all contents on input click
$pointer.on('click', 'input', function (e) {
$(this).select();
e.stopPropagation();
});
// Pointer mode toggle
$pointer.on('click', 'span.icon', event => {
let $icon = $(event.currentTarget);
pointerModeLink = !pointerModeLink;
$icon.html(pointerModeLink ? '<i class="zmdi zmdi-link"></i>' : '<i class="zmdi zmdi-square-down"></i>');
updatePointerContent();
});
// Set up clipboard
let clipboard = new Clipboard('#pointer button');
// Hide pointer when clicking away
$(document.body).find('*').on('click focus', event => {
if (!pointerShowing || isSelection) return;
let target = $(event.target);
if (target.is('.zmdi') || $(event.target).closest('#pointer').length === 1) return;
$pointer.detach();
pointerShowing = false;
});
function updatePointerContent() {
let inputText = pointerModeLink ? window.baseUrl(`/link/${pageId}#${pointerSectionId}`) : `{{@${pageId}#${pointerSectionId}}}`;
if (pointerModeLink && inputText.indexOf('http') !== 0) inputText = window.location.protocol + "//" + window.location.host + inputText;
$pointer.find('input').val(inputText);
}
// Show pointer when selecting a single block of tagged content
$('.page-content [id^="bkmrk"]').on('mouseup keyup', function (e) {
e.stopPropagation();
let selection = window.getSelection();
if (selection.toString().length === 0) return;
// Show pointer and set link
let $elem = $(this);
pointerSectionId = $elem.attr('id');
updatePointerContent();
$elem.before($pointer);
$pointer.show();
pointerShowing = true;
// Set pointer to sit near mouse-up position
let pointerLeftOffset = (e.pageX - $elem.offset().left - ($pointerInner.width() / 2));
if (pointerLeftOffset < 0) pointerLeftOffset = 0;
let pointerLeftOffsetPercent = (pointerLeftOffset / $elem.width()) * 100;
$pointerInner.css('left', pointerLeftOffsetPercent + '%');
isSelection = true;
setTimeout(() => {
isSelection = false;
}, 100);
});
// Go to, and highlight if necessary, the specified text.
function goToText(text) {
let idElem = document.getElementById(text);
$('.page-content [data-highlighted]').attr('data-highlighted', '').css('background-color', '');
if (idElem !== null) {
let $idElem = $(idElem);
let color = $('#custom-styles').attr('data-color-light');
$idElem.css('background-color', color).attr('data-highlighted', 'true').smoothScrollTo();
setTimeout(() => {
$idElem.addClass('anim').addClass('selectFade').css('background-color', '');
setTimeout(() => {
$idElem.removeClass('selectFade');
}, 3000);
}, 100);
} else {
$('.page-content').find(':contains("' + text + '")').smoothScrollTo();
}
}
// Check the hash on load
if (window.location.hash) {
let text = window.location.hash.replace(/\%20/g, ' ').substr(1);
goToText(text);
}
// Sidebar page nav click event
$('.sidebar-page-nav').on('click', 'a', event => {
goToText(event.target.getAttribute('href').substr(1));
});
// Make the book-tree sidebar stick in view on scroll
let $window = $(window);
let $bookTree = $(".book-tree");
let $bookTreeParent = $bookTree.parent();
// Check the page is scrollable and the content is taller than the tree
let pageScrollable = ($(document).height() > $window.height()) && ($bookTree.height() < $('.page-content').height());
// Get current tree's width and header height
let headerHeight = $("#header").height() + $(".toolbar").height();
let isFixed = $window.scrollTop() > headerHeight;
// Function to fix the tree as a sidebar
function stickTree() {
$bookTree.width($bookTreeParent.width() + 15);
$bookTree.addClass("fixed");
isFixed = true;
}
// Function to un-fix the tree back into position
function unstickTree() {
$bookTree.css('width', 'auto');
$bookTree.removeClass("fixed");
isFixed = false;
}
// Checks if the tree stickiness state should change
function checkTreeStickiness(skipCheck) {
let shouldBeFixed = $window.scrollTop() > headerHeight;
if (shouldBeFixed && (!isFixed || skipCheck)) {
stickTree();
} else if (!shouldBeFixed && (isFixed || skipCheck)) {
unstickTree();
}
}
// The event ran when the window scrolls
function windowScrollEvent() {
checkTreeStickiness(false);
}
// If the page is scrollable and the window is wide enough listen to scroll events
// and evaluate tree stickiness.
if (pageScrollable && $window.width() > 1000) {
$window.on('scroll', windowScrollEvent);
checkTreeStickiness(true);
}
// Handle window resizing and switch between desktop/mobile views
$window.on('resize', event => {
if (pageScrollable && $window.width() > 1000) {
$window.on('scroll', windowScrollEvent);
checkTreeStickiness(true);
} else {
$window.off('scroll', windowScrollEvent);
unstickTree();
}
});
};
module.exports = setupPageShow;