diff --git a/_javascript/commons/scroll-helper.js b/_javascript/commons/scroll-helper.js
new file mode 100644
index 0000000..5dc6bd5
--- /dev/null
+++ b/_javascript/commons/scroll-helper.js
@@ -0,0 +1,36 @@
+/**
+ * A tool for smooth scrolling and topbar switcher
+ */
+const ScrollHelper = (function () {
+ const $body = $("body");
+ const ATTR_TOPBAR_VISIBLE = "topbar-visible";
+ const topbarHeight = $("#topbar-wrapper").outerHeight();
+
+ let scrollUpCount = 0; // the number of times the scroll up was triggered by ToC or anchor
+ let topbarLocked = false;
+ let orientationLocked = false;
+
+ return {
+ hideTopbar: () => $body.attr(ATTR_TOPBAR_VISIBLE, false),
+ showTopbar: () => $body.attr(ATTR_TOPBAR_VISIBLE, true),
+
+ // scroll up
+
+ addScrollUpTask: () => {
+ scrollUpCount += 1;
+ if (!topbarLocked) { topbarLocked = true; }
+ },
+ popScrollUpTask: () => scrollUpCount -= 1,
+ hasScrollUpTask: () => scrollUpCount > 0,
+ topbarLocked: () => topbarLocked === true,
+ unlockTopbar: () => topbarLocked = false,
+ getTopbarHeight: () => topbarHeight,
+
+ // orientation change
+
+ orientationLocked: () => orientationLocked === true,
+ lockOrientation: () => orientationLocked = true,
+ unLockOrientation: () => orientationLocked = false
+ };
+
+}());
diff --git a/_javascript/commons/topbar-switch.js b/_javascript/commons/topbar-switch.js
deleted file mode 100644
index b8942dd..0000000
--- a/_javascript/commons/topbar-switch.js
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Hide Header on scroll down
- */
-
-$(function() {
- const $topbarWrapper = $("#topbar-wrapper");
- const $topbarTitle = $("#topbar-title");
- const $panel = $("#panel-wrapper");
- const $searchInput = $("#search-input");
-
- const CLASS_TOPBAR_UP = "topbar-up";
- const CLASS_TOPBAR_DOWN = "topbar-down";
- const ATTR_TOC_SCROLLING_UP = "toc-scrolling-up"; // topbar locked
-
- let didScroll;
- let lastScrollTop = 0;
-
- const delta = $topbarWrapper.outerHeight();
- const topbarHeight = $topbarWrapper.outerHeight();
-
- function hasScrolled() {
- let st = $(this).scrollTop();
-
- /* Make sure they scroll more than delta */
- if (Math.abs(lastScrollTop - st) <= delta) {
- return;
- }
-
- if (st > lastScrollTop ) { // Scroll Down
- if (st > topbarHeight) {
- $topbarWrapper.removeClass(CLASS_TOPBAR_DOWN).addClass(CLASS_TOPBAR_UP);
- $panel.removeClass(CLASS_TOPBAR_DOWN);
-
- if ($searchInput.is(":focus")) {
- $searchInput.blur(); /* remove focus */
- }
- }
- } else {// Scroll up
- // did not reach the bottom of the document, i.e., still have space to scroll up
- if (st + $(window).height() < $(document).height()) {
- let tocScrollingUp = $topbarWrapper.attr(ATTR_TOC_SCROLLING_UP);
- if (typeof tocScrollingUp !== "undefined") {
- if (tocScrollingUp === "false") {
- $topbarWrapper.removeAttr(ATTR_TOC_SCROLLING_UP);
- }
-
- } else {
- $topbarWrapper.removeClass(CLASS_TOPBAR_UP).addClass(CLASS_TOPBAR_DOWN);
- $panel.addClass(CLASS_TOPBAR_DOWN);
- }
- }
- }
-
- lastScrollTop = st;
- }
-
- $(window).scroll(function(event) {
- if ($topbarTitle.is(":hidden")) {
- didScroll = true;
- }
- });
-
- setInterval(function() {
- if (didScroll) {
- hasScrolled();
- didScroll = false;
- }
- }, 250);
-
-});
diff --git a/_javascript/commons/topbar-switcher.js b/_javascript/commons/topbar-switcher.js
new file mode 100644
index 0000000..f1c42bf
--- /dev/null
+++ b/_javascript/commons/topbar-switcher.js
@@ -0,0 +1,90 @@
+/*
+ * Hide Header on scroll down
+ */
+
+$(function() {
+ const $searchInput = $("#search-input");
+ const delta = ScrollHelper.getTopbarHeight();
+
+ let didScroll;
+ let lastScrollTop = 0;
+
+ function hasScrolled() {
+ let st = $(this).scrollTop();
+
+ /* Make sure they scroll more than delta */
+ if (Math.abs(lastScrollTop - st) <= delta) {
+ return;
+ }
+
+ if (st > lastScrollTop ) { // Scroll Down
+ ScrollHelper.hideTopbar();
+
+ if ($searchInput.is(":focus")) {
+ $searchInput.blur(); /* remove focus */
+ }
+
+ } else { // Scroll up
+ // has not yet scrolled to the bottom of the screen, that is, there is still space for scrolling
+ if (st + $(window).height() < $(document).height()) {
+
+ if (ScrollHelper.hasScrollUpTask()) {
+ return;
+ }
+
+ if (ScrollHelper.topbarLocked()) { // avoid redundant scroll up event from smooth scrolling
+ ScrollHelper.unlockTopbar();
+ } else {
+ if (ScrollHelper.orientationLocked()) { // avoid device auto scroll up on orientation change
+ ScrollHelper.unLockOrientation();
+ } else {
+ ScrollHelper.showTopbar();
+ }
+ }
+ }
+ }
+
+ lastScrollTop = st;
+
+ } // hasScrolled()
+
+ function handleLandscape() {
+ if ($(window).scrollTop() === 0) {
+ return;
+ }
+ ScrollHelper.lockOrientation();
+ ScrollHelper.hideTopbar();
+ }
+
+ if (screen.orientation) {
+ screen.orientation.onchange = () => {
+ const type = screen.orientation.type;
+ if (type === "landscape-primary" || type === "landscape-secondary") {
+ handleLandscape();
+ }
+ };
+
+ } else {
+ // for the browsers that not support `window.screen.orientation` API
+ $(window).on("orientationchange",() => {
+ if ($(window).width() < $(window).height()) { // before rotating, it is still in portrait mode.
+ handleLandscape();
+ }
+ });
+ }
+
+ $(window).scroll(() => {
+ if (didScroll) {
+ return;
+ }
+ didScroll = true;
+ });
+
+ setInterval(() => {
+ if (didScroll) {
+ hasScrolled();
+ didScroll = false;
+ }
+ }, 250);
+
+});
diff --git a/_javascript/commons/topbar-title.js b/_javascript/commons/topbar-title.js
index 2208afa..ff82151 100644
--- a/_javascript/commons/topbar-title.js
+++ b/_javascript/commons/topbar-title.js
@@ -14,17 +14,22 @@ $(function() {
}
const defaultTitleText = $topbarTitle.text().trim();
- let titleText = $pageTitle.text().trim();
+ let pageTitleText = $pageTitle.text().trim();
let hasScrolled = false;
let lastScrollTop = 0;
if ($("#page-category").length || $("#page-tag").length) {
/* The title in Category or Tag page will be " " */
- if (/\s/.test(titleText)) {
- titleText = titleText.replace(/[0-9]/g, "").trim();
+ if (/\s/.test(pageTitleText)) {
+ pageTitleText = pageTitleText.replace(/[0-9]/g, "").trim();
}
}
+ // When the page is scrolled down and then refreshed, the topbar title needs to be initialized
+ if ($pageTitle.offset().top < $(window).scrollTop()) {
+ $topbarTitle.text(pageTitleText);
+ }
+
let options = {
rootMargin: '-48px 0px 0px 0px', // 48px equals to the topbar height (3rem)
threshold: [0, 1]
@@ -43,7 +48,7 @@ $(function() {
if (isScrollDown) {
if (heading.intersectionRatio === 0) {
- $topbarTitle.text(titleText);
+ $topbarTitle.text(pageTitleText);
}
} else {
if (heading.intersectionRatio === 1) {
diff --git a/_javascript/utils/smooth-scroll.js b/_javascript/utils/smooth-scroll.js
index a8ad44c..200cb65 100644
--- a/_javascript/utils/smooth-scroll.js
+++ b/_javascript/utils/smooth-scroll.js
@@ -8,21 +8,16 @@
*/
$(function() {
- const $topbarWrapper = $("#topbar-wrapper");
- const topbarHeight = $topbarWrapper.outerHeight();
const $topbarTitle = $("#topbar-title");
-
- const ATTR_TOC_SCROLLING = "toc-scrolling-up";
- const SCROLL_MARK = "scroll-focus";
const REM = 16; // in pixels
- let tocScrollUpCount = 0;
+ const ATTR_SCROLL_FOCUS = "scroll-focus";
$("a[href*='#']")
.not("[href='#']")
.not("[href='#0']")
.click(function(event) {
-
- if (this.pathname.replace(/^\//, "") !== location.pathname.replace(/^\//, "")) {
+ if (this.pathname.replace(/^\//, "") !==
+ location.pathname.replace(/^\//, "")) {
return;
}
@@ -36,9 +31,8 @@ $(function() {
let selector = hash.includes(":") ? hash.replace(/\:/g, "\\:") : hash;
let $target = $(selector);
- let parent = $(this).parent().prop("tagName");
- let isAnchor = RegExp(/^H\d/).test(parent);
- let isMobileViews = !$topbarTitle.is(":hidden");
+ let isMobileViews = $topbarTitle.is(":visible");
+ let isPortrait = $(window).width() < $(window).height();
if (typeof $target === "undefined") {
return;
@@ -50,26 +44,20 @@ $(function() {
history.pushState(null, null, hash);
}
- let curOffset = isAnchor ? $(this).offset().top : $(window).scrollTop();
+ let curOffset = $(window).scrollTop();
let destOffset = $target.offset().top -= REM / 2;
if (destOffset < curOffset) { // scroll up
- if (!isAnchor && !toFootnote) { // trigger by ToC item
- if (!isMobileViews) { // on desktop/tablet screens
- $topbarWrapper.removeClass("topbar-down").addClass("topbar-up");
- // Send message to `${JS_ROOT}/commons/topbar-switch.js`
- $topbarWrapper.attr(ATTR_TOC_SCROLLING, true);
- tocScrollUpCount += 1;
- }
+ ScrollHelper.hideTopbar();
+ ScrollHelper.addScrollUpTask();
+
+ if (isMobileViews && isPortrait) {
+ destOffset -= ScrollHelper.getTopbarHeight();
}
- if ((isAnchor || toFootnoteRef) && isMobileViews) {
- destOffset -= topbarHeight;
- }
-
- } else {
- if (isMobileViews) {
- destOffset -= topbarHeight;
+ } else { // scroll down
+ if (isMobileViews && isPortrait) {
+ destOffset -= ScrollHelper.getTopbarHeight();
}
}
@@ -79,18 +67,18 @@ $(function() {
$target.focus();
/* clean up old scroll mark */
- if ($(`[${SCROLL_MARK}=true]`).length) {
- $(`[${SCROLL_MARK}=true]`).attr(SCROLL_MARK, false);
+ if ($(`[${ATTR_SCROLL_FOCUS}=true]`).length) {
+ $(`[${ATTR_SCROLL_FOCUS}=true]`).attr(ATTR_SCROLL_FOCUS, false);
}
/* Clean :target links */
if ($(":target").length) { /* element that visited by the URL with hash */
- $(":target").attr(SCROLL_MARK, false);
+ $(":target").attr(ATTR_SCROLL_FOCUS, false);
}
/* set scroll mark to footnotes */
if (toFootnote || toFootnoteRef) {
- $target.attr(SCROLL_MARK, true);
+ $target.attr(ATTR_SCROLL_FOCUS, true);
}
if ($target.is(":focus")) { /* Checking if the target was focused */
@@ -100,12 +88,8 @@ $(function() {
$target.focus(); /* Set focus again */
}
- if (typeof $topbarWrapper.attr(ATTR_TOC_SCROLLING) !== "undefined") {
- tocScrollUpCount -= 1;
-
- if (tocScrollUpCount <= 0) {
- $topbarWrapper.attr(ATTR_TOC_SCROLLING, "false");
- }
+ if (ScrollHelper.hasScrollUpTask()) {
+ ScrollHelper.popScrollUpTask();
}
});
}); /* click() */
diff --git a/_layouts/default.html b/_layouts/default.html
index 4bcede5..99c4d8a 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -21,7 +21,7 @@ layout: compress
{% include mode-toggle.html %}
{% endunless %}
-
+
{% include sidebar.html %}
diff --git a/_layouts/page.html b/_layouts/page.html
index cf998f0..5eafb93 100644
--- a/_layouts/page.html
+++ b/_layouts/page.html
@@ -34,7 +34,7 @@ layout: default
-
+
{% include update-list.html %}
diff --git a/_sass/addon/commons.scss b/_sass/addon/commons.scss
index 13a11e9..ce8f6be 100644
--- a/_sass/addon/commons.scss
+++ b/_sass/addon/commons.scss
@@ -247,7 +247,7 @@ img[data-src] {
}
}
- &.topbar-down > div {
+ [topbar-visible=true] & > div {
top: 6rem;
}
}
@@ -570,10 +570,6 @@ img[data-src] {
box-shadow: 0 0 8px 0 var(--btn-box-shadow) !important;
}
-.topbar-up {
- top: -3rem !important; /* same as topbar height. */
-}
-
.no-text-decoration {
@include no-text-decoration;
}
@@ -876,6 +872,10 @@ $sidebar-display: "sidebar-display";
z-index: 50;
border-bottom: 1px solid rgba(0, 0, 0, 0.07);
background-color: var(--topbar-wrapper-bg);
+
+ [topbar-visible=false] & {
+ top: -$topbar-height; /* same as topbar height. */
+ }
}
#topbar {
@@ -1193,9 +1193,15 @@ $sidebar-display: "sidebar-display";
/* hide sidebar and panel */
@media all and (max-width: 849px) {
- %slide {
- -webkit-transition: transform 0.4s ease;
- transition: transform 0.4s ease;
+ @mixin slide($append: null) {
+ $basic: transform 0.4s ease;
+ @if $append {
+ -webkit-transition: $basic, $append;
+ transition: $basic, $append;
+ } @else {
+ -webkit-transition: $basic;
+ transition: $basic;
+ }
}
html,
@@ -1203,15 +1209,6 @@ $sidebar-display: "sidebar-display";
overflow-x: hidden;
}
- .footnotes ol > li {
- padding-top: 3.5rem;
- margin-top: -3.2rem;
-
- &:first-child {
- margin-top: -3.5rem;
- }
- }
-
[#{$sidebar-display}] {
#sidebar {
transform: translateX(0);
@@ -1221,11 +1218,10 @@ $sidebar-display: "sidebar-display";
#main-wrapper {
transform: translateX(#{$sidebar-width});
}
-
}
#sidebar {
- @extend %slide;
+ @include slide;
transform: translateX(-#{$sidebar-width}); // hide
-webkit-transform: translateX(-#{$sidebar-width});
@@ -1238,7 +1234,7 @@ $sidebar-display: "sidebar-display";
}
#main-wrapper {
- @extend %slide;
+ @include slide;
padding-top: $topbar-height;
}
@@ -1253,15 +1249,11 @@ $sidebar-display: "sidebar-display";
}
#topbar-wrapper {
- @extend %slide;
+ @include slide(top 0.2s ease);
left: 0;
}
- .topbar-up {
- top: 0 !important;
- }
-
#main > div.row:first-child > div:nth-child(1),
#main > div.row:first-child > div:nth-child(2) {
margin-top: 0;
@@ -1308,6 +1300,12 @@ $sidebar-display: "sidebar-display";
} // max-width: 849px
+@media all and (max-width: 849px) and (orientation: portrait) {
+ [topbar-visible=false] #topbar-wrapper {
+ top: 0;
+ }
+}
+
/* Phone & Pad */
@media all and (min-width: 577px) and (max-width: 1199px) {
footer > .d-flex > div {
@@ -1353,10 +1351,6 @@ $sidebar-display: "sidebar-display";
right: 1.2rem;
}
- .topbar-up {
- box-shadow: none !important;
- }
-
#topbar-title {
text-align: left;
}
diff --git a/assets/js/dist/categories.min.js b/assets/js/dist/categories.min.js
index 5aa4341..72ce62c 100644
--- a/assets/js/dist/categories.min.js
+++ b/assets/js/dist/categories.min.js
@@ -3,4 +3,4 @@
* © 2019 Cotes Chung
* MIT Licensed
*/
-$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),s=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),r=$("#search-wrapper"),n=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),f={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),r.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),r.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},p=function(){let e=!1;return{on(){e||(u.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),s.removeClass("visible"),a.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible(){return e}}}();function h(){return t.hasClass("loaded")}o.click(function(){f.on(),p.on(),i.focus()}),t.click(function(){f.off(),p.off()}),i.focus(function(){r.addClass("input-focus")}),i.focusout(function(){r.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):p.off():""!==i.val()&&(p.on(),s.hasClass("visible")||s.addClass("visible"),h()&&c.addClass("unloaded"))}),s.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):p.off(),i.focus(),s.removeClass("visible")})}),$(function(){var e=function(){const e="sidebar-display";let o=!1;const t=$("body");return{toggle(){!1===o?t.attr(e,""):t.removeAttr(e),o=!o}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const t=$("#topbar-wrapper"),o=$("#topbar-title"),s=$("#panel-wrapper"),a=$("#search-input"),l="topbar-up",r="topbar-down",n="toc-scrolling-up";let d,i=0;const c=t.outerHeight(),u=t.outerHeight();$(window).scroll(function(e){o.is(":hidden")&&(d=!0)}),setInterval(function(){d&&(function(){var e,o=$(this).scrollTop();Math.abs(i-o)<=c||(o>i?o>u&&(t.removeClass(r).addClass(l),s.removeClass(r),a.is(":focus")&&a.blur()):o+$(window).height()<$(document).height()&&(void 0!==(e=t.attr(n))?"false"===e&&t.removeAttr(n):(t.removeClass(l).addClass(r),s.addClass(r))),i=o)}(),d=!1)},250)}),$(function(){var o="div.post>h1:first-of-type";const t=$(o),r=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!r.is(":hidden")){const n=r.text().trim();let s=t.text().trim(),a=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(s)&&(s=s.replace(/[0-9]/g,"").trim());let e=new IntersectionObserver(e=>{var o,t;a?(o=$(window).scrollTop(),t=l
{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(o=>{const e=$(o.target);let t=e.prop("tagName")==="button".toUpperCase()?e:e.parent();t.blur(),flipMode()})});const ScrollHelper=function(){const o=$("body"),e="topbar-visible",t=$("#topbar-wrapper").outerHeight();let l=0,a=!1,r=!1;return{hideTopbar:()=>o.attr(e,!1),showTopbar:()=>o.attr(e,!0),addScrollUpTask:()=>{l+=1,a=a||!0},popScrollUpTask:()=>--l,hasScrollUpTask:()=>0!0===a,unlockTopbar:()=>a=!1,getTopbarHeight:()=>t,orientationLocked:()=>!0===r,lockOrientation:()=>r=!0,unLockOrientation:()=>r=!1}}();$(function(){const o=$("#sidebar-trigger"),e=$("#search-trigger"),t=$("#search-cancel"),l=$("#search-cleaner"),a=$("#main"),r=$("#topbar-title"),s=$("#search-wrapper"),n=$("#search-result-wrapper"),i=$("#search-results"),c=$("#search-input"),d=$("#search-hints"),p=function(){let o=0;return{block(){o=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(o)},getOffset(){return o}}}(),f={on(){o.addClass("unloaded"),r.addClass("unloaded"),e.addClass("unloaded"),s.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),s.removeClass("d-flex"),o.removeClass("unloaded"),r.removeClass("unloaded"),e.removeClass("unloaded")}},u=function(){let o=!1;return{on(){o||(p.block(),n.removeClass("unloaded"),a.addClass("unloaded"),o=!0)},off(){o&&(i.empty(),d.hasClass("unloaded")&&d.removeClass("unloaded"),n.addClass("unloaded"),l.removeClass("visible"),a.removeClass("unloaded"),p.release(),c.val(""),o=!1)},isVisible(){return o}}}();function h(){return t.hasClass("loaded")}e.click(function(){f.on(),u.on(),c.focus()}),t.click(function(){f.off(),u.off()}),c.focus(function(){s.addClass("input-focus")}),c.focusout(function(){s.removeClass("input-focus")}),c.on("keyup",function(o){8===o.keyCode&&""===c.val()?h()?d.removeClass("unloaded"):u.off():""!==c.val()&&(u.on(),l.hasClass("visible")||l.addClass("visible"),h()&&d.addClass("unloaded"))}),l.on("click",function(){c.val(""),h()?(d.removeClass("unloaded"),i.empty()):u.off(),c.focus(),l.removeClass("visible")})}),$(function(){var o=function(){const o="sidebar-display";let e=!1;const t=$("body");return{toggle(){!1===e?t.attr(o,""):t.removeAttr(o),e=!e}}}();$("#sidebar-trigger").click(o.toggle),$("#mask").click(o.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const e=$("#search-input"),t=ScrollHelper.getTopbarHeight();let o,l=0;function 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diff --git a/assets/js/dist/post.min.js b/assets/js/dist/post.min.js
index 7353d90..67e97ec 100644
--- a/assets/js/dist/post.min.js
+++ b/assets/js/dist/post.min.js
@@ -3,4 +3,4 @@
* © 2019 Cotes Chung
* MIT Licensed
*/
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