publication/app/views/publications/_viewer.html.erb

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<style type="text/css">
.flip-book {
position: relative;
height: 100%;
}
.flip-book .view {
text-align: center;
height: 100%;
}
.flip-book .view .fnav {
}
.flip-book .view .prev, .flip-book .view .next {
position: absolute;
top: 50%;
transform: translate(0, -50%);
z-index: 100;
}
.flip-book .view .prev {
left: 20px;
}
.flip-book .view .next {
right: 20px;
}
.flip-book .view .fnav a {
font-size: 6em;
color: #666;
}
@media screen and (max-width:768px) {
.flip-book .view .fnav a {
font-size: 3em;
}
}
.flip-book .view .fnav a:hover , .flip-book .view .fnav a.hover-class {
cursor: pointer;
text-shadow: 0 0 7px #000;
}
.flip-book .view .fnav a:active {
font-size: 5.83em;
}
.flip-book .view .fnav .hidden {
display: none;
}
.flip-book .view .fnav .active {
color: #555;
}
.flip-book .view .fnav .disabled {
color: #aaa;
}
.flip-book .view .fnav .disabled:hover , .flip-book .view .fnav .disabled.hover-class {
cursor: not-allowed;
text-shadow: none;
}
.flip-book .view .loading-progress {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.flip-book .view .loading-progress.hidden {
display: none;
}
.flip-book .loading-progress .progress {
background-color: #555;
background-image: none;
width: 50px;
height: 50px;
margin: 0 auto;
border-radius: 30px;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
padding: 5px;
box-shadow: 0px 0px 3px #000;
margin-bottom: 10px;
}
.flip-book .loading-progress .progress::after {
content: ' ';
display: block;
width: 100%;
height: 100%;
background-size: contain;
background-image: url(/assets/flipbook/light-loader.gif);
}
.flip-book .page-loading {
width: 50px;
height: 50px;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 1;
}
.flip-book .page-loading.hidden {
display: none;
}
.flip-book .page-loading::after {
content: ' ';
display: block;
width: 100%;
height: 100%;
background-size: contain;
background-image: url(/assets/flipbook/light-loader.gif);
}
.flip-book .loading-progress .caption {
background-color: #555;
border: 1px solid #333;
padding: 7px 10px;
font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
font-size: 0.83em;
border-radius: 5px;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
font-style: italic;
color: #eee;
}
.flip-book .controls .fnavbar {
margin: 0 auto;
opacity: 0.3;
transition: opacity 2s ease-in-out 3s;
}
.flip-book .controls .fnavbar:hover , .flip-book .controls .fnavbar.hover-class {
opacity: 1;
transition: opacity 1s ease;
}
.ctrl {
font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
}
.ctrl ul {
margin: 0;
padding: 0;
}
.ctrl .fnavbar {
text-align: center;
background-image: linear-gradient(to bottom,#3c3c3c 0,#222 100%);
-pie-background: linear-gradient(to bottom,#3c3c3c 0,#222 100%);
behavior: url(/assets/ie_support/PIE2/PIE.htc);
background-repeat: repeat-x;
padding: 3px;
overflow: visible;
background-color: #3c3c3c;
}
.ctrl .fnavbar a {
text-decoration: none;
font-size: 0.875em;
}
.ctrl .fnavbar .fnav {
display: inline-block;
text-align: left;
}
.ctrl .fnavbar .fnav li{
font-size: 0.75em;
margin: 0;
width: auto;
}
.ctrl .fnavbar .fnav .fnav-item {
display: inline-block;
}
.ctrl .fnavbar .fnav .hidden {
display: none;
}
.ctrl .fnavbar .fnav .fnav-item>a {
padding: 10px;
display: inline-block;
color: #ccc;
}
.ctrl .fnavbar .fnav>.active>a {
color: #fff;
}
.ctrl .fnavbar .fnav .fnav-item>a:hover , .ctrl .fnavbar .fnav .fnav-item>a.hover-class {
color: #fff;
cursor: pointer;
}
.ctrl .fnavbar .fnav .fnav-item>a:active {
text-shadow: 0 0 2px #fff;
}
.ctrl .fnavbar .fnav>.disabled>a {
color: #888;
}
.ctrl .fnavbar .fnav>.disabled>a:hover , .ctrl .fnavbar .fnav>.disabled>a.hover-class {
color: #888;
cursor: not-allowed;
}
.ctrl .fnavbar .fnav>.active {
background: #222;
}
.ctrl .fnavbar .fnav .dropdown, .ctrl .fnavbar .fnav .dropup {
position: relative;
}
.ctrl .fnavbar .fnav .dropdown .menu {
top: 100%;
box-shadow: 3px 0 3px #222;
}
.ctrl .fnavbar .fnav .dropdown .caret {
display: inline-block;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-top: 5px solid #ccc;
}
.ctrl .fnavbar .fnav .dropup .menu {
bottom: 100%;
box-shadow: 3px 0 3px #222;
}
.ctrl .fnavbar .fnav .dropup .caret {
display: inline-block;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-bottom: 5px solid #ccc;
}
.ctrl .fnavbar .menu {
position: absolute;
border: 1px solid #444;
background-color: #222;
z-index: 10;
min-width: 160px;
}
.ctrl .fnavbar .menu li {
display: block;
padding: 5px 10px;
}
.ctrl .fnavbar .menu .divider {
height: 1px;
background-color: #444;
padding: 0;
margin: 5px 0;
}
.ctrl .fnavbar .menu .active {
background-color: #444;
}
.ctrl .fnavbar .menu .active:hover , .ctrl .fnavbar .menu .active.hover-class {
/*background-color: #444;*/
}
.ctrl .fnavbar .menu li:hover , .ctrl .fnavbar .menu li.hover-class {
background-color: #333;
cursor: pointer;
}
.ctrl .fnavbar .menu li a {
color: #fff;
}
.ctrl .fnavbar .menu .disabled a {
color: #aaa;
cursor: not-allowed;
}
.ctrl .fnavbar .menu .icon {
display: inline-block;
width: 14px;
height: 14px;
text-align: center;
}
.ctrl .pages {
padding: 0 10px;
display: inline-block;
}
.ctrl .pages .number, .ctrl .pages .amount {
width: 50px;
height: 20px;
text-align: center;
display: inline-block;
font-size: 0.92em;
border: 0;
color: #000;
background-color: #ccc;
font-weight: bold;
border-radius: 0;
margin: 0;
padding: 2px;
}
.ctrl .pages .number {
border-top-left-radius: 5px;
border-bottom-left-radius: 5px;
background-color: #ddd;
}
.ctrl .pages .amount {
border-top-right-radius: 5px;
border-bottom-right-radius: 5px;
}
/* floating window */
.flip-book .float-wnd {
position: absolute;
bottom: 50px;
left: 10px;
border-radius: 5px 5px 0 0;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
background-color: #1a1a1a;
width: 300px;
z-index: 100;
box-shadow: 3px 0 3px #222;
}
.flip-book .float-wnd.hidden {
display: none;
}
.flip-book .float-wnd .header {
border-radius: 4px 4px 0 0;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
background-color: #3c3c3c;
background-image: linear-gradient(to bottom,#3c3c3c 0,#222 100%);
-pie-background: linear-gradient(to bottom,#3c3c3c 0,#222 100%);
behavior: url(/assets/ie_support/PIE2/PIE.htc);
background-repeat: repeat-x;
padding: 7px 10px;
border: 1px solid #444;
border-bottom: none;
color: #fff;
font-weight: bold;
cursor: move;
}
.flip-book .float-wnd .header .close {
top: 5px;
right: 8px;
font-size: 0.875em;
position: absolute;
color: #ccc;
}
.flip-book .float-wnd .header .close:hover , .flip-book .float-wnd .header .close.hover-class {
color: #fff;
}
.flip-book .float-wnd .header .close:active {
font-size: 0.75em;
padding-top: 1px;
padding-right: 1px;
}
.flip-book .float-wnd .body {
border: 1px solid #444;
border-top: none;
}
/* toc */
.ctrl .toc {
font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
}
.ctrl .toc a {
text-decoration: none;
}
.ctrl .toc .hidden {
display: none;
}
.ctrl .toc .toc-menu {
padding: 5px 10px;
}
.ctrl .toc .toc-menu ul {
list-style: none;
padding: 0;
}
.ctrl .toc .toc-menu li {
display: inline-block;
padding-right: 5px;
}
.ctrl .toc .toc-menu a {
color: #ccc;
font-size: 0.875em;
}
.ctrl .toc .toc-menu a:hover , .ctrl .toc .toc-menu a.hover-class {
color: #fff;
}
.ctrl .toc .toc-menu a:active {
text-shadow: 0 0 2px #fff;
}
.ctrl .toc .toc-menu .active a {
color: #fff;
}
.ctrl .toc .toc-view {
padding: 10px 0;
max-height: 80vh;
overflow-y: auto;
overflow-x: hidden;
}
.ctrl .toc .toc-view::-webkit-scrollbar {
width: 7px;
height: 7px;
}
.ctrl .toc .toc-view::-webkit-scrollbar-button {
width: 0;
height: 0;
}
.ctrl .toc .toc-view::-webkit-scrollbar-thumb {
background: #4a4a4a;
border-radius: 2px;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
}
.ctrl .toc .toc-view::-webkit-scrollbar-thumb:hover , .ctrl .toc .toc-view::-webkit-scrollbar-thumb.hover-class {
background: #3a3a3a;
}
.ctrl .toc .toc-view::-webkit-scrollbar-thumb:active {
background: #5a5a5a;
}
.ctrl .toc .toc-view::-webkit-scrollbar-track {
background: #2a2a2a;
border-left: 2px solid #1a1a1a;
border-right: 2px solid #1a1a1a;
}
.ctrl .bookmarks .white-space, .ctrl .bookmarks .togle, .ctrl .bookmarks .togle i {
width: 18px;
height: 18px;
}
.ctrl .bookmarks .white-space {
display: inline-block;
}
.ctrl .bookmarks li {
width: 10000px;
}
.ctrl .bookmarks .item .area {
padding: 2px 0;
}
.ctrl .bookmarks .level-0 .area {
padding-left: 5px;
}
.ctrl .bookmarks .level-1 .area {
padding-left: 10px;
}
.ctrl .bookmarks .level-2 .area {
padding-left: 15px;
}
.ctrl .bookmarks .level-3 .area {
padding-left: 20px;
}
.ctrl .bookmarks .level-4 .area {
padding-left: 25px;
}
.ctrl .bookmarks .item .area:hover , .ctrl .bookmarks .item .area.hover-class {
background-color: #444;
}
.ctrl .bookmarks .item .area:active {
background-color: #333;
}
.ctrl .bookmarks .item a {
color: #fff;
font-size: 0.875em;
}
.ctrl .bookmarks ul {
list-style: none;
padding: 0;
}
.ctrl .bookmarks .togle {
display: inline-block;
text-align: center;
position: relative;
}
.ctrl .bookmarks .togle::before {
content: ' ';
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border-radius: 50%;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
border: 0px solid #222;
transition: border 0.2s;
}
.ctrl .bookmarks .togle:active::before {
border: 12px solid #222;
transition: border 0.05s;
}
.ctrl .bookmarks .togle i {
transform: rotateZ(0deg);
transition: transform 0.2s;
}
.ctrl .bookmarks .togle.minimized i {
transform: rotateZ(90deg);
transition: transform 0.2s;
}
.ctrl .thumbnails .item a {
color: #fff;
font-size: 0.875em;
}
.ctrl .thumbnails {
padding: 10px 0;
text-align: center;
}
.ctrl .thumbnails .thumbnail {
height: 170px;
margin-bottom: 5px;
background-size: contain;
background-repeat: no-repeat;
background-position: center;
}
.ctrl .thumbnails .loading {
position: relative;
}
.ctrl .thumbnails .loading::after {
content: ' ';
position: absolute;
width: 40px;
height: 40px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
background-size: contain;
background-image: url(/assets/flipbook/light-loader.gif);
}
.ctrl .thumbnails .item {
display: inline-block;
width: 128px;
padding: 5px 5px;
border: 1px solid transparent;
border-radius: 3px;
behavior: url(/assets/ie_support/PIE2/PIE.htc);
}
.ctrl .thumbnails .item:hover , .ctrl .thumbnails .item.hover-class {
border: 1px solid #555;
background-color: #444;
}
.ctrl .thumbnails .heading {
overflow: hidden;
height: 20px;
}
.ctrl .search .result {
padding: 7px 10px;
cursor: pointer;
}
.ctrl .search .result:hover , .ctrl .search .result.hover-class {
background-color: #444;
}
.ctrl .search .results a {
color: #fff;
font-size: 0.875em;
}
.ctrl .search .query {
padding: 0 10px;
padding-bottom: 10px;
}
.ctrl .search .query input {
width: 100%;
}
.ctrl .search .status {
text-align: center;
color: #ccc;
font-size: 0.75em;
}
.fnav .prev {
left: 20px;
}
.fnav .next {
right: 20px;
}
.fnav a {
font-size: 6em;
color: #666;
}
.fnav .prev, .fnav .next {
position: absolute;
top: 50%;
transform: translate(0, -50%);
z-index: 100;
}
#magazine_block li [class^="icon"], #magazine_block li [class*=" icon"]{
width: auto;
}
</style>
<div id="magazine_block" class="flip-book">
<div id="magazine_container">
<div id="magazine">
</div>
<div class="view">
<div class="fnav">
<div class="prev">
<a class="cmdBackward disabled" href="javascript:;" title="Previous page"><span class="icon"><i class="fa fa-angle-left" title="Previous page"></i></span></a>
</div>
<div class="next">
<a class="cmdForward" href="javascript:;" title="Next page"><span class="icon"><i class="fa fa-angle-right" title="Next page"></i></span></a>
</div>
</div>
</div>
</div>
<div class="controls">
<div class="ctrl js-center" style="left: 0px;">
<nav class="fnavbar">
<ul class="fnav">
<li class="fnav-item cmdZoomIn"><a href="javascript:;" title="Zoom in"><span class="icon"><i class="fa fa-search-plus" title="Zoom in"></i></span></a></li>
<li class="fnav-item cmdZoomOut disabled"><a href="javascript:;" title="Zoom out"><span class="icon"><i class="fa fa-search-minus" title="Zoom out"></i></span></a></li>
<li class="fnav-item cmdDefaultZoom active"><a href="javascript:;" title="Fit view"><span class="icon"><i class="fa fa-compress" title="Fit view"></i></span></a></li>
<li class="fnav-item cmdToc"><a href="javascript:;" title="Table of contents"><span class="icon"><i class="fa fa-bookmark" title="Table of contents"></i></span></a></li>
<li class="fnav-item cmdBackward disabled"><a href="javascript:;" title="Previous page"><span class="icon"><i class="fa fa-backward" title="Previous page"></i></span></a></li>
<li class="fnav-item">
<div class="pages">
<input type="text" class="number inpPage" maxlength="4" placeholder="1">
<input type="text" class="amount inpPages" readonly="" maxlength="4" placeholder="1">
</div>
</li>
<li class="fnav-item cmdForward"><a href="javascript:;" title="Next page"><span class="icon"><i class="fa fa-forward" title="Next page"></i></span></a></li>
<li class="fnav-item cmdSave"><a href="<%= url %>" title="Download" download="<%= URI.decode(File.basename(url)) %>"><span class="icon"><i class="fa fa-download" title="Download"></i></span></a></li>
<li class="fnav-item cmdFullScreen"><a href="javascript:;" title="Full screen"><span class="icon"><i class="fa fa-arrows-alt" title="Full screen"></i></span></a></li>
<li class="dropup fnav-item toggle widSettings">
<a href="javascript:;" title="Settings"><div class="icon-caret"><span class="icon"><i class="fa fa-cog" title="Settings"></i> <i class="caret"></i></span></div></a>
<ul class="menu hidden">
<li class="cmdSinglePage"><a href="javascript:;" title="Single page"><span class="icon"><i class="fa fa-file-o"></i></span> Single page</a></li>
</ul>
</li>
</ul>
</nav>
</div>
</div>
<div class="float-wnd hidden">
<div class="body">
<div class="ctrl">
<div class="toc">
<div class="widThumbnails toc-view">
<div class="thumbnails"></div>
</div>
</div>
</div>
</div>
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</div>
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</div>
<%= stylesheet_link_tag "publications/pdf-turn.css" %>
<%= javascript_include_tag "publications/pdf/pdf.worker.js" %>
<%= javascript_include_tag "publications/pdf/pdf.js" %>
<%= javascript_include_tag "publications/turn.min.js" %>
<%= javascript_include_tag "publications/pdf-turn.js" %>
<style type="text/css">
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#magazine_container {
overflow: hidden;
}
#magazine {
margin: auto;
width: 100%;
}
#magazine .turn-page {
background-color: #ccc;
background-size: 100% 100%;
}
#magazine .loader {
background-image: url(https://cdn.jsdelivr.net/gh/Qiu-Weidong/blog/resources/images/loader.gif);
width: 24px;
height: 24px;
display: block;
position: absolute;
top: 238px;
left: 188px;
}
#magazine .odd {
background-image: -webkit-linear-gradient(right, #FFF 95%, #ddd 100%);
background-image: -moz-linear-gradient(right, #FFF 95%, #ddd 100%);
background-image: -o-linear-gradient(right, #FFF 95%, #ddd 100%);
background-image: -ms-linear-gradient(right, #FFF 95%, #ddd 100%);
}
#magazine .even {
background-image: -webkit-linear-gradient(left, #FFF 95%, #ddd 100%);
background-image: -moz-linear-gradient(left, #FFF 95%, #ddd 100%);
background-image: -o-linear-gradient(left, #FFF 95%, #ddd 100%);
background-image: -ms-linear-gradient(left, #FFF 95%, #ddd 100%);
}
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</style>
<script type="text/javascript">
$(document).ready(function(){
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function ScrollZoom(container,max_scale,factor){
var target = container.children().first();
var size = {w:target.width(),h:target.height()};
var pos = {x:0,y:0};
var scale = 1;
var zoom_target = {x:0,y:0};
var zoom_point = {x:0,y:0};
var curr_tranform = target.css('transition');
var last_mouse_position = { x:0, y:0 };
var drag_started = 0;
target.css('transform-origin','0 0')
target.on("mousewheel DOMMouseScroll",scrolled)
target.on('mousemove', moved)
target.on('mousedown', function() {
drag_started = 1;
target.css({'cursor':'move', 'transition': 'transform 0s'});
/* Save mouse position */
last_mouse_position = { x: event.pageX, y: event.pageY};
});
target.on('mouseup mouseout', function() {
drag_started = 0;
target.css({'cursor':'default', 'transition': curr_tranform});
});
function scrolled(e){
var offset = container.offset()
zoom_point.x = e.pageX - offset.left;
zoom_point.y = e.pageY - offset.top;
e.preventDefault();
var delta = e.delta || e.originalEvent.wheelDelta;
if (delta === undefined) {
//we are on firefox
delta = e.originalEvent.detail;
}
delta = Math.max(-1,Math.min(1,delta)) // cap the delta to [-1,1] for cross browser consistency
// determine the point on where the slide is zoomed in
zoom_target.x = (zoom_point.x - pos.x)/scale;
zoom_target.y = (zoom_point.y - pos.y)/scale;
// apply zoom
scale += delta * factor * scale;
scale = Math.max(1,Math.min(max_scale,scale));
// calculate x and y based on zoom
pos.x = -zoom_target.x * scale + zoom_point.x;
pos.y = -zoom_target.y * scale + zoom_point.y;
update();
}
target.bind('zoom', function(event, delta){
if(scale == 1){
zoom_point.x = size.w / 2 - parseFloat(flipbook.css('margin-left')) / 2;
zoom_point.y = size.h / 2;
}
// determine the point on where the slide is zoomed in
zoom_target.x = (zoom_point.x - pos.x)/scale;
zoom_target.y = (zoom_point.y - pos.y)/scale;
// apply zoom
scale += delta * factor * scale
scale = Math.max(1,Math.min(max_scale,scale))
// calculate x and y based on zoom
pos.x = -zoom_target.x * scale + zoom_point.x
pos.y = -zoom_target.y * scale + zoom_point.y
update();
});
function moved(event){
if(drag_started == 1) {
var current_mouse_position = { x: event.pageX, y: event.pageY};
var change_x = current_mouse_position.x - last_mouse_position.x;
var change_y = current_mouse_position.y - last_mouse_position.y;
/* Save mouse position */
last_mouse_position = current_mouse_position;
//Add the position change
pos.x += change_x;
pos.y += change_y;
update()
}
}
function update(){
// Make sure the slide stays in its container area when zooming out
if(pos.x>0)
pos.x = 0;
if(pos.x+size.w*scale<size.w)
pos.x = -size.w*(scale-1);
if(pos.y>0)
pos.y = 0;
if(pos.y+size.h*scale<size.h)
pos.y = -size.h*(scale-1);
target.css('transform','translate('+(pos.x)+'px,'+(pos.y)+'px) scale('+scale+','+scale+')');
if(scale == 1){
target.trigger('zoom-min');
}else if(scale == max_scale){
target.trigger('zoom-max');
}else{
target.trigger('zoom-callback');
}
}
}
var flipbook = $('#magazine');
window.flipbook = flipbook
var flipbook_container = $('#magazine_block');
flipbook_container.find('.widSettings > a').on('click', function(){
$(this).siblings('ul.menu').toggleClass('hidden');
})
flipbook_container.find('.widSettings ul.menu li').on('click', function(){
$(this).parent().addClass('hidden');
})
var current_height_ratio = null;
var init_thumbnail = false;
var single_page = false;
var isInFullScreen = false;
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var url = '<%= url %>';
const CMAP_PACKED = true;
const ENABLE_XFA = true;
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var loadingTask = pdfjsLib.getDocument({
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url,
cMapPacked: CMAP_PACKED,
enableXfa: ENABLE_XFA,
disableFontFace: true
});
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var pdfDoc = null, scale = window.devicePixelRatio || 1;
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const container = flipbook[0];
flipbook.bind('zoom-min', function(){
flipbook_container.find('.cmdZoomOut').addClass('disabled');
flipbook_container.find('.cmdDefaultZoom').addClass('active');
})
flipbook.bind('zoom-max', function(){
flipbook_container.find('.cmdZoomIn').addClass('disabled');
})
flipbook.bind('zoom-callback', function(){
flipbook_container.find('.cmdZoomOut').removeClass('disabled');
flipbook_container.find('.cmdZoomIn').removeClass('disabled');
flipbook_container.find('.cmdDefaultZoom').removeClass('active');
})
flipbook_container.find('.cmdZoomIn a').on('click', function(){
var _this = $(this);
if(_this.hasClass('disabled')){
return;
}
flipbook.trigger('zoom', 1);
})
flipbook_container.find('.cmdZoomOut a').on('click', function(){
var _this = $(this);
if(_this.hasClass('disabled')){
return;
}
flipbook.trigger('zoom', -1);
})
flipbook_container.find('.cmdDefaultZoom a').on('click', function(){
var _this = $(this);
if(_this.hasClass('disabled')){
return;
}
flipbook.trigger('zoom', -5);
flipbook_container.find('.cmdZoomIn').removeClass('disabled');
})
function makeThumb(page) {
var canvas = document.createElement("canvas");
const ctx = canvas.getContext('2d');
var viewport = page.getViewport({ scale: scale });
// Support HiDPI-screens.
var outputScale = (window.devicePixelRatio || 1) / 4;
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outputScale = outputScale / viewport.width * flipbook.width();
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canvas.width = Math.floor(viewport.width * outputScale);
canvas.height = Math.floor(viewport.height * outputScale);
canvas.style.width = "100%";
var transform = outputScale !== 1
? [outputScale, 0, 0, outputScale, 0, 0]
: null;
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// Render PDF page into canvas context
var renderContext = {
canvasContext: ctx,
transform: transform,
viewport: viewport,
};
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return page.render(renderContext).promise.then(function () {
return canvas;
});
}
function get_thumbnail(){
var pages = []; while (pages.length < pdfDoc.numPages) pages.push(pages.length + 1);
return Promise.all(pages.map(function (num) {
// create a div for each page and build a small canvas for it
var div = flipbook_container.find('.thumbnails');
var item_div = $('<div class="item" data-page="'+num+'"><a href="javascript:;"><div class="thumbnail loading"></div></a><div class="heading"><a href="javascript:;" title="'+num+'">'+num+'</a></div></div>');
div.append(item_div);
item_div.on('click', function(){
flipbook.turn('page', $(this).data('page'));
})
return pdfDoc.getPage(num).then(makeThumb).then(function (canvas) {
item_div.find('.thumbnail').append(canvas).removeClass('loading');
});
}));
}
flipbook_container.find('.cmdToc').on('click', function(){
var _this = $(this);
var toc_active = _this.hasClass('active');
if(!init_thumbnail){
get_thumbnail();
}
if(toc_active){
_this.removeClass('active');
flipbook_container.find('.float-wnd').addClass('hidden');
}else{
flipbook_container.find('.float-wnd').css('bottom', flipbook_container.find('.controls').height() + 10 + 'px');
_this.addClass('active');
flipbook_container.find('.float-wnd').removeClass('hidden');
}
})
function toggleFullscreen(docElm) {
if (!isInFullScreen) {
if (docElm.requestFullscreen) {
docElm.requestFullscreen();
} else if (docElm.mozRequestFullScreen) {
docElm.mozRequestFullScreen();
} else if (docElm.webkitRequestFullScreen) {
docElm.webkitRequestFullScreen();
} else if (docElm.msRequestFullscreen) {
docElm.msRequestFullscreen();
}
isInFullScreen = true;
} else {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
isInFullScreen = false;
}
}
function exitHandler()
{
if (!document.webkitIsFullScreen && !document.mozFullScreen && !document.msFullscreenElement)
{
var fullscreen_btn = flipbook_container.find('.cmdFullScreen');
if(fullscreen_btn.hasClass('active')){
fullscreen_btn.removeClass('active');
flipbook_container.removeClass('fullscreen');
isInFullScreen = false;
flipbook.trigger('resize_func');
}
}
}
if (document.addEventListener){
document.addEventListener('fullscreenchange', exitHandler, false);
document.addEventListener('mozfullscreenchange', exitHandler, false);
document.addEventListener('MSFullscreenChange', exitHandler, false);
document.addEventListener('webkitfullscreenchange', exitHandler, false);
}
flipbook_container.find('.cmdFullScreen').on('click', function(){
var _this = $(this);
_this.toggleClass('active');
flipbook_container.toggleClass('fullscreen');
toggleFullscreen(flipbook_container[0]);
flipbook.trigger('resize_func');
})
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loadingTask.promise.then(function (pdfDoc_) {
pdfDoc = pdfDoc_;
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window.pdfDoc = pdfDoc;
// 封面
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const cover = document.createElement('div');
cover.className = 'hard cover';
container.appendChild(cover);
renderPage(1).then(canvas => {
cover.appendChild(canvas);
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// 設置 #magazine 的長寬
// 按照 pdf的長寬比例來設定#magazine的高度。
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const height = container.clientWidth / 2 * canvas.height / canvas.width;
container.style.height = height + 'px';
const cover2 = document.createElement('div');
cover2.className = 'hard cover';
container.appendChild(cover2);
renderPage(2).then(canvas => {
cover2.appendChild(canvas);
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var numPages = pdfDoc.numPages; // 總頁數
flipbook_container.find('.inpPages').attr('placeholder', numPages.toString());
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$('#magazine').turn({
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pages: numPages,
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display: 'double',
acceleration: true,
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autoCenter: true,
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gradients: !$.isTouch,
elevation: 50,
when: {
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turned: function (e, page) {
if(!single_page && page != 1){
page -= page % 2;
}
flipbook_container.find('.inpPage').attr('placeholder', page).val(page);
if(page == 1){
flipbook_container.find('.cmdBackward').addClass('disabled');
}else{
flipbook_container.find('.cmdBackward').removeClass('disabled');
}
if((single_page && page == numPages) || (!single_page && page == (numPages - 1))){
flipbook_container.find('.cmdForward').addClass('disabled');
}else{
flipbook_container.find('.cmdForward').removeClass('disabled');
}
},
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turning: function (e, page, view) {
const range = $(this).turn('range', page);
const start = range[0], end = range[1];
for (page = start; page <= end; page++) {
addPage(page, $(this));
}
},
}
});
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// 如果要從右往左翻書,則取消註解
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// $('#magazine').turn('page', pdfDoc.numPages);
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var scroll_zoom = new ScrollZoom($('#magazine_container'),5,0.5);
flipbook_container.find('.inpPage').on('input', function(){
var _this = $(this);
var page = parseInt(_this.val());
page = Math.max(1, Math.min(page, numPages));
flipbook.turn('page', page);
})
flipbook_container.find('.cmdSinglePage').on('click', function(){
single_page = !single_page;
$(this).toggleClass('active');
if(single_page){
flipbook.turn('display', 'single');
}else{
flipbook.turn('display', 'double');
}
flipbook.trigger('resize_func');
});
flipbook.trigger('resize');
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});
});
});
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// 回傳一個渲染好的canvas
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function renderPage(num) {
return new Promise(function (resolve, _reject) {
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
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const realPage = num; // 從左往右翻書
// const realPage = pdfDoc.numPages - num + 1; // 從右往左翻書
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pdfDoc.getPage(realPage).then(function (page) {
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var viewport = page.getViewport({ scale: scale });
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// Support HiDPI-screens.
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var outputScale = window.devicePixelRatio || 1;
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outputScale = outputScale / viewport.width * flipbook.width();
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canvas.width = Math.floor(viewport.width * outputScale);
canvas.height = Math.floor(viewport.height * outputScale);
canvas.style.width = "100%";
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current_height_ratio = viewport.height / viewport.width;
var transform = outputScale !== 1
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? [outputScale, 0, 0, outputScale, 0, 0]
: null;
// Render PDF page into canvas context
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var renderContext = {
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canvasContext: ctx,
transform: transform,
viewport: viewport,
};
page.render(renderContext).promise.then(() => {
resolve(canvas);
});
});
});
}
function addPage(page, book) {
if (!book.turn('hasPage', page)) {
const element = document.createElement('div');
element.innerHTML = '<i class="loader"></i>';
book.turn('addPage', element, page);
renderPage(page).then(canvas => { element.innerHTML = ''; element.appendChild(canvas); });
}
}
$(window).bind('keydown', function (e) {
if (e.keyCode == 37)
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flipbook.turn('previous');
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else if (e.keyCode == 39)
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flipbook.turn('next');
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});
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flipbook_container.find('.cmdBackward').click(function(){
flipbook.turn('previous');
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});
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flipbook_container.find('.cmdForward').click(function(){
flipbook.turn('next');
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});
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flipbook.bind('resize_func', function(event){
if(isInFullScreen){
flipbook.css({"width": "", "height": ""});
var flipbook_height = $(window).height() - flipbook_container.find('.controls').height();
if(current_height_ratio != null){
if(single_page){
flipbook.turn("size", flipbook_height / current_height_ratio, flipbook_height);
}else{
flipbook.turn("size", flipbook_height / current_height_ratio * 2, flipbook_height);
}
}
}else{
flipbook.css({"width": "", "height": ""});
var width = $('#main-content').width();
if(current_height_ratio != null){
if(single_page){
flipbook.turn("size", width, width * current_height_ratio);
}else{
flipbook.turn("size", width, width * current_height_ratio / 2);
}
}
}
})
$(window).resize(function(){
var single_page_btn = flipbook_container.find('.cmdSinglePage');
if($(window).width() > 1200){
if(single_page){
single_page = false;
single_page_btn.removeClass('active');
flipbook.turn('display', 'double');
}
}else{
if(!single_page){
single_page = true;
single_page_btn.addClass('active');
flipbook.turn('display', 'single');
}
}
flipbook.trigger('resize_func');
})
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});
</script>