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logic.js
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logic.js
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['left', 'right', 'top', 'bottom'].forEach(function(navid) {
if (/\w/.test(CONFIG['tb_list_' + navid]))
$body.append(tb_generate(CONFIG['tb_list_' + navid], navid,navid.indexOf('o')>=0? 'tb-h':'tb-v'));
});
function music_handler(){
if (music_active){
if (last_music_url!=current_music_url){
$music_tag[0].src = last_music_url = current_music_url;
$music_tag.stop()[0].volume = 1;
try {
$music_tag[0].play();
}catch(e){
console.error(e);
}
}
} else if (last_music_url) {
last_music_url = null;
$music_tag.animate({volume: 0, duration:200,complete:function(){
try {
$music_tag[0].pause();
}catch(e){
console.error(e);
}
}});
}
}
// create a new jQuery element out of a <template> element of id '#tmpl_'+name
function tmpl(name,id){
var clone = document.importNode(document.querySelector('#tmpl_'+name).content, true).querySelector('*');
if (id)
clone.id = id;
//consolelog('tmpl(',name,') = ',clone);
return $(clone);
}//tmpl
// show teaser for flipping pages
function show_peel_corner(){
consolelog('show_peel_corner');
clearTimeout(show_peel_corner_TO);
show_peel_corner_TO = setTimeout(function(){
if (!$book.turn('animating')&&!search_results_clicked){
// bug when activating peel animation while moving pages or showing another peel
// bug: srcolling stuck when peel animation
$book.turn('peel','bl');
}
search_results_clicked = false;
},2000);
}//show_peel_corner
// check if page cannot be moved to
function is_page_skip_me(page){
return turn_display_mode=='single' && !!$('.p'+page+'.skip_me').length;
}
// wrapper for $book.turn('page',page)
// handles skipping of cover pages on single page mode
function go_to_page(page){
if (page == 'prev'){text_share_dialog
page = 'previous';
}
if (page == 'next' || page == 'previous' ){
if (turn_display_mode=='single'){
var direction = page == 'previous' ? -1 : 1;
var new_page = current_page()+direction;
if (is_page_skip_me(new_page)){
// activate skipping empty pages method below
page = new_page;
}
}
}
if (page == 'last')
page = numpages - 1;
if (page == 'first')
page = 1;
if (turn_display_mode == 'single'){
var direction = current_page()>page ? -1 : 1;
// skipping empty pages when need to
while (is_page_skip_me(page)){
page+=direction;
}
}
if (page == 'next' || page == 'previous') {
$book.turn(page);
} else {
if (page>0 && page<numpages){
$book.turn('page',page);
} else {
console.log('Error go_to_page(',page,') - page not in range of book');
}
}
pages_depth_turning();
consolelog('go_to_page(',page,') to ',page);
}//go_to_page
// get objects of the pages in current view (if any)
function current_pages_docs(){
var a = [];
var view = $book.turn('view');
for (var i=0;i<view.length;i++){
var idx = page_number_to_page_index(view[i]);
if (book_list[idx]){
a[a.length] = book_list[idx];
a[a.length-1].page_number = view[i];
a[a.length-1].idx = idx;
}
}
return a;
}
function handle_title(){
if (CONFIG["text_window_title_content"]){
var rx = /\%page_title/;
var title = '';
if (rx.test(CONFIG["text_window_title_content"])){
var docs = current_pages_docs();
for (var i=0;i<docs.length;i++){
if (docs[i].name){
if (title)
title += CONFIG["text_window_title_separator"];
title += docs[i].name;
}
}
}
document.title = CONFIG["text_window_title_content"].replace(rx,title || '');
var meta = document.querySelector('#og_title');
if (meta){
meta.name = "title";
meta.content = document.title;
}
}
if (CONFIG["generate_og_image"]) {
// add share image
var meta = document.querySelector('#og_image');
meta.name = 'og:image';
html2canvas(document.querySelector('#book_container'), {
onrendered: function(canvas) {
meta.content = canvas.toDataURL();
}
});
}
}
function handle_pushstate(page){
if (enable_pushstate) {
var new_url_search = '?p='+page;
if (location.search!=new_url_search)
window.history.pushState({"page":page},"", new_url_search);
}
}
window.onpopstate = function(e){
if(e.state){
go_to_page(e.state.page);
}
};
// wrapper for $book.turn('page')
function current_page() {
return $book.turn('page');
}
function current_pages() {
return $book.turn('view');
}
function current_pagenum(){
var current = current_page() - cover_pages_before;
return current<0 || current>total_pagenum() ? false : current;
}
function go_to_pagenum(page){
if (isFinite(page))
go_to_page(cover_pages_before + page);
else
go_to_page(page);
}
function total_pagenum(){
return numpages - cover_pages_before - cover_pages_after;
}
function total_page(){
return numpages;
}
// populate search results text
function set_found_text(results_or_text){
if (typeof results_or_text == 'string') {
$('#tb-item-nav-found').html(results_or_text);
} else if (typeof results_or_text == 'number') {
if (results_or_text>0){
$('#tb-item-nav-found').html(CONFIG["text_found"].replace('%s',results_or_text));
} else {
$('#tb-item-nav-found').html(CONFIG["text_not_found"]);
}
} else {
$('#tb-item-nav-found').html("");
}
}//set_found_text
// set status of currently searching
function set_searching_state(state){
$('#tb-item-nav-go').toggleClass('disabled',state);
$('#tb-item-nav-go .tb-icon').toggleClass('fa-refresh fa-spin',state).toggleClass('fa-search',!state);
}
// handle search query
function handle_search(){
var q = $.trim($('#id-q').val());
if (search_q !== q) {
search_q = q;
set_searching_state(true);
var set_searching_state_false = function () {
set_searching_state(false);
}
if (CONFIG["remember_last_search"]){
// remember last visit q
localStorage.setItem('turn_reader_q',q);
}
if (CONFIG["search_or_filter"]=='search'){
// search mode
load_search(q,set_searching_state_false);
} else {
// filter mode
load_book(q,set_searching_state_false);
}
consolelog('handle_search(',q,')');
}
}//handle_search
// search mode
function load_search(q,callback){
consolelog('load_search(',q,')');
if (!q){
// clear search
set_found_text("");
populate_search_results(false);
if (callback){
callback();
}
} else {
// do search
var url='ajax.php?f=list&cfg='+CUSTOM_CONFIG_NAME+'&q='+encodeURI(q||'');
var ajax_object = ajax(url,function(data){
if (data.error){
$('#tb-item-nav-found').text(data.error);
return;
}
populate_search_results(data);
if (callback){
callback();
}
});
}
}//load_search
// populate search results
function populate_search_results(data){
consolelog('populate_search_results(',data,')');
// sort and populate results by page numbers
var pages = [];
var length;
if (data) {
length = data.length;
for (var i=0;i<data.length;i++){
var id = data[i].id;
pages[id_to_page(id)]=id;
}
}
search_results = [];
for(var i=0;i<pages.length;i++){
if (pages[i]){
search_results[search_results.length] = {
id:pages[i],
page:i
};
}
}
search_position = 0;
set_found_text(length);
set_searching_state(false);
if (length){
// go to first result
go_to_search_position();
}
}//populate_search_results
function go_to_search_position(){
consolelog('go_to_search_position: search_results[',search_position,'] = ',search_results[search_position]);
set_found_text(CONFIG["text_found_in"].replace('%s1',search_position+1).replace('%s2',search_results.length));
var page = search_results[search_position].page;
if (page){
// animate pages flow
//pause_turn_events = true;
//pause_turn_events = false;
// go to actual page
go_to_page(page);
}
}
function id_to_page(id){
for(var i=0;i<book_list.length;i++){
if (book_list[i].id==id)
return 1 + i + cover_pages_before;
}
}
// next/prev buttons
function search_next_prev(next_or_prev,search_or_page){
if (!search_or_page)
search_or_page = search_results.length ? 's' : 'p';
if (search_or_page == 's' && !search_results.length)
return;
if (next_or_prev=='prev')
next_or_prev='previous';
if (search_or_page == 's'){
search_results_clicked = true;
// next/prev search result
if ((next_or_prev=='next' && search_position<search_results.length-1)
|| (next_or_prev=='previous' && search_position>0 )){
search_position += next_or_prev == 'next' ? 1 : -1;
}
// last/first search result
if (next_or_prev=='first' || next_or_prev=='last'){
search_position = next_or_prev == 'last' ? search_results.length-1 : 0;
}
go_to_search_position();
} else {
// next/prev page
go_to_page(next_or_prev);
}
tb_updateState();
}//search_next_prev
function load_music_files(){
var url = 'ajax.php?f=music&cfg='+CUSTOM_CONFIG_NAME;
var ajax_object = ajax(url,function(data){
if (data.length){
music_list = data;
}
});
}
function toggle_bookmark(){
var pages = current_pages();
var i0 = bookmarks.indexOf(pages[0]);
var i1 = bookmarks.indexOf(pages[1]);
if (i0>=0 || i1>=0){
if (i0>=0)
bookmarks.splice(i0,1);
if (i1>=0)
bookmarks.splice(i1,1);
}
else
{
bookmarks.push(pages[0]);
}
localStorage.setItem('bookmarks',JSON.stringify(bookmarks));
curpage_bookmark();
}
function is_bookmarked(){
var pages = current_pages();
return bookmarks.indexOf(pages[0])>=0 || bookmarks.indexOf(pages[1])>=0;
}
function load_bookmarks(){
bookmarks = JSON.parse(localStorage.getItem('bookmarks')||'[]');
}
function show_bookmarks(){
bookmarks.sort(function sortNumber(a,b) {return a - b;});
$('#bookmarks').css($book_parent.position()).width($book_parent.width()).height($book_parent.height());
bookmarks.forEach(show_bookmark);
curpage_bookmark();
}
function curpage_bookmark() {
$('#curpage_bookmark').remove();
if (!!current_pagenum()) {
var $even_page = $('.p'+current_pages()[0]+'.even,.p'+current_pages[1]+'.even');
var $cur = $('<div id="curpage_bookmark" class="bookmark_ribbon r"></div>');
var is_curpage = is_bookmarked();
var display_page = current_pagenum && total_pagenum && page_index_to_display_number(page_number_to_page_index(current_page()));
if (!$cur.data('runonce'))
$cur.data('runonce',1).click(toggle_bookmark);
$cur.toggleClass('active',is_curpage).prop('title',CONFIG["text_bookmark"].replace('%s',display_page)).appendTo($even_page);
}
}
function show_bookmark(page,index) {
var id = 'bm-'+page;
var $bookmarks = $('#bookmarks');
var $elem = $('#'+id);
if (!$('#'+id).length)
$elem = $('<div id="' + id + '" class="bookmark_ribbon" data-page="' + page + '">').appendTo($bookmarks);
var pages = current_pages();
if (page == pages[0] || page == pages[1]){
$elem.hide();
}
else
{
var after = page > pages[0] && page > pages[1];
var side = direction.charAt(after ? 2 : 0) == 'l' ? 'left' : 'right';
if (side == 'left')
$elem.css('right','').css('left',-13-$('#pages_depth_l').width());
else
$elem.css('left','').css('right',-13-$('#pages_depth_r').width());
$elem.css('top',10 + (25 * index)).click(bookmark_click).toggleClass('r',side=='right').toggleClass('l',side=='left').show();
}
$elem.prop('title',CONFIG["text_bookmark"].replace('%s',page_index_to_display_number(page_number_to_page_index(page))));
}
function hide_bookmark(page) {
var id = 'bm-'+page;
$('#'+id).remove();
}
function bookmark_click(ev) {
var $elem = $(ev.target);
var page = $elem.data('page');
if (page)
go_to_page(page);
}
function get_page_from_location_search(){
var rx,match;
rx = /\bp=(\d+)\b/;
if (rx.test(location.search)){
match = location.search.match(rx);
return (1*match[1]) || false;
}
rx = /\bid=([^%&]+)\b/;
if (rx.test(location.search)){
match = location.search.match(rx);
return id_to_page(match[1]);
}
}
// load a book according to a search query using ajax
// used: filter mode + on first run
function load_book(q,callback) {
set_found_text("");
set_searching_state(true);
var url = 'ajax.php?f=list&cfg='+CUSTOM_CONFIG_NAME+'&q='+encodeURI(q||'');
var ajax_object = ajax(url,function(data){
set_searching_state(false);
search_results = [];
search_position = 0;
if (data.error){
set_found_text(data.error);
return;
}
set_found_text(data.length);
if (data.length){
book_list = data;
build_book();
if (CONFIG["show_peel_corner"]) {
show_peel_corner();
}
var p = get_page_from_location_search();
if (p){
// start on page from url
go_to_page(p);
} else if (!CONFIG["start_with_closed_book"]){
// start on first page
go_to_page(3);
}
}
handle_title();
if (callback){
callback();
}
if (typeof book_loaded_hook == 'function'){
book_loaded_hook();
}
enable_pushstate = 1;
setTimeout(tb_updateState,100);
});
}//load_book
// generate the index pages and add them to correct place
function generate_index(){
if (!CONFIG["generate_index"])
return;
var tmpl_row = '<li class="idx_row" pi="__PAGE__"><span class="idx_name">__NAME__</span><span class="idx_number">__NUMBER__</span></a></li>';
var current_page,i;
var rows = [];
var pages_html = [];
index_pages=[];
index_numpages = Math.ceil(book_list.length/CONFIG["index_lines_per_page"]);
if (CONFIG["generate_index"]=="start"){
cover_pages_before += index_numpages;
} else {
cover_pages_after += index_numpages;
}
// generate the rows
for (i=0;i<book_list.length;i++){
current_page = Math.floor(i/CONFIG["index_lines_per_page"]);
pages_html[current_page] = pages_html[current_page] || '';
pages_html[current_page] += tmpl_row.replace('__NAME__',book_list[i].name).replace('__PAGE__',i).replace('__NUMBER__',page_index_to_display_number(i));
}
for (current_page=0;current_page<pages_html.length;current_page++){
index_pages[current_page] = tmpl('index_page');
index_pages[current_page].find('.idx_list').append(pages_html[current_page]).find('.idx_row').click(index_row_click);
}
}
function index_row_click(){
var p = page_index_to_page_number(1*jQuery(this).attr('pi'));
go_to_page(p);
}
// return page number for displaying page number
function page_index_to_display_number(i){
return i + 1;
}
// return page number for a page element index
function page_index_to_page_number(i){
return i + 1 + cover_pages_before;
}
// return page index for a page number
function page_number_to_page_index(i){
return i - 1 - cover_pages_before;
}
// populate the book. based on book_list. removes previous content if any.
function build_book(){
// reset
cover_pages_before = 0;
cover_pages_after = 0;
generate_index();
numpages = book_list.length + cover_pages_before + cover_pages_after;
var extra_blank_page = (numpages % 2)>0; // for odd number of pages, add a blank page at the end
if (CONFIG["hard_cover"]) {
cover_pages_before += 2;
cover_pages_after += 2;
}
if(extra_blank_page){
cover_pages_after++;
}
numpages = book_list.length + cover_pages_before + cover_pages_after;
var id = $book[0].id;
try{
$book.turn("destroy")
}catch(e){}
$book.remove();
$book = $('<div id="'+id+'">').appendTo($book_parent);
$book.bind('turned', turned);
$book.bind('turning', turning);
$book.bind('start', animation_start);
$book.bind('end', animation_end);
if (CONFIG["middle_gradient"]){
$book.addClass('middle_gradient');
}
loaded_pages = [];
// append pages to book and remember which pages are already loaded
var append = function(tmpl_name,page,id){
if (page && !id)
id = 'page-'+page;
var $elem = tmpl(tmpl_name,id);
return $elem.appendTo($book);
}
// add front cover
if (CONFIG["hard_cover"]){
append('cover_front',1,'cover_front');
append('inside_front',2,'inside_front');
}
// add index if at beginning
if (CONFIG["generate_index"]=="start"){
for (i=0;i<index_pages.length;i++){
$book.append(index_pages[i]);
}
}
// add book content placeholders
// book actual content will is loaded via ajax on turning event. see function turning()
var i;
for (i=0;i<book_list.length;i++){
var page = page_index_to_page_number(i);
append('empty_page',page).attr('i',i);
}
// when number of pages is odd, add another blank page to allow folding of the last page
if (extra_blank_page) {
append('extra_page',numpages - 2);
}
// add back cover
if (CONFIG["hard_cover"]){
append('inside_back',numpages-1,'inside_back');
append('cover_back',numpages,'cover_back');
}
// add index if at end
if (CONFIG["generate_index"]=="end"){
for (i=0;i<index_pages.length;i++){
$book.append(index_pages[i]);
}
}
// the turnjs magic!
var turn_options = CONFIG["turn_options"];
turn_options.width = $size_parent.width() - pages_depth_width;
turn_options.height = $size_parent.height();
turn_options.pages = numpages;
turn_options.direction = direction;
turn_count = 0;
$book.turn(turn_options);
build_book_time = Date.now();
resize();
$(window).off('resize',resize).resize(resize);
setTimeout(resize,100);
setTimeout(resize,1000);
setTimeout(resize,2000);
init($book);
// fix page width via css
//$('#id-style-fix-pages').remove();
//$('head').append('<style id="id-style-fix-pages">#flipbook .page { width:' +(turn_options.width/2)+'px; height:' + turn_options.height + 'px;</style>');
}//build_book
// detect and handle single/double pages view mode.
// called by resize()
function set_display_mode() {
var mode = CONFIG["single_page_mode"]=="always" || (mobile_mode && CONFIG["single_page_mode"]=="mobile") ? 'single' : 'double';
if (turn_display_mode!==mode) {
// single/double mode change + on init
turn_display_mode=mode;
$body.removeClass('display-double display-single');
$body.addClass('display-'+turn_display_mode);
$book.turn("display",turn_display_mode);
if (turn_display_mode=='single'){
go_to_page(current_page()); // make sure not to dispaly skip_me pages
}
}
}//set_display_mode
// handle book depth display/hide
// called by resize() and build_book()
function handle_pages_depth() {
if (!CONFIG["pages_depth"]){
return;
}
var width = 0;
if (turn_display_mode=='double') {
width = Math.min(CONFIG["pages_depth_max_width"],Math.floor(numpages*CONFIG["pages_depth_paper_thickness"]));
}
var height = $size_parent.height();
if (pages_depth_width !== width || pages_depth_height !== height){
pages_depth_height = height;
pages_depth_width = width;
var visible = !!pages_depth_width;
$('.pages_depth_element').toggle(visible);
$body.toggleClass('pages_depth',visible);
if (visible){
pages_depth_turning();
}
}
}//handle_pages_depth
// handle book depth effect, width of both sides
// called by turned()
function pages_depth_turning() {
if (pages_depth_width){
var percent_of_book = current_page()/numpages;
if (direction == "rtl"){
percent_of_book = 1-percent_of_book;
}
var width_l = pages_depth_width * percent_of_book;
var width_r = pages_depth_width - width_l;
$('#pages_depth_l').width(width_l).toggleClass('has_width',!!pages_depth_width).height(pages_depth_height);
$('#pages_depth_r').width(width_r).toggleClass('has_width',!!pages_depth_width).height(pages_depth_height);
if (CONFIG["pages_depth_fix_margin"]){
$('#pages_depth_l').css('margin-left' ,width_r);
$('#pages_depth_r').css('margin-right',width_l);
}
$size_parent.toggleClass('pages_depth',!!pages_depth_width);
}
}
// detect and handle mobile mode
// called by resize()
function set_mobile_mode() {
var mode = window.innerWidth <= CONFIG["mobile_width"];
if (mobile_mode !== mode){
// desktop/mobile mode change + on init
mobile_mode = mode;
$body.toggleClass('mobile',mobile_mode).toggleClass('desktop',!mobile_mode);
}
var orientation = mobile_mode ? (innerWidth>innerHeight ? 'p':'l') : undefined;
if (mobile_orientation !== orientation) {
mobile_orientation = orientation;
$body.toggleClass('orientation-p',orientation == 'p').toggleClass('orientation-l',orientation=='l');
}
}//set_mobile_mode
// turnjs start event
function animation_start(event, pageObject, corner) {
if (CONFIG["prevent_corner_peels_on_mobile_to_allow_scrolling"] && mobile_mode && mobile_orientation == 'p' && corner && corner[1]==direction[0]) {
event.preventDefault();
return false;
}
autofit_text();
}
// turnjs end event
function animation_end(event, pageObject, corner) {
}
// turnjs turning event - when starting to animate turning to a specific page
function turning(event, page, view) {
turn_count ++;
clearTimeout(show_peel_corner_TO);
if (pause_turn_events){
return;
}
if (is_page_skip_me(page)){
event.preventDefault();
go_to_page(page);
} else {
if (page > numpages - cover_pages_after)
return; // page out of range, a cover page, or is already loaded
var range = $book.turn('range', page);
for (var i = range[0]; i<=range[1]; i++){
load_page(i);
}
pages_depth_turning();
}
if (CONFIG["page_sound"] && sound_active && turn_count > 1){ // dont play sound on first 'turning' event
try{
document.querySelector("#page_sound").play();
}catch(e){
console.error(e);
}
}
$('#curpage_bookmark').hide();
}//turning
// turnjs turned event - when a page has finished animation and is displayed
function turned(event, page, view) {
if (pause_turn_events){
consolelog('pause_turn_events',page);
return;
}
consolelog('turned',page);
var visible_scrollable;
for (var i = 0; i<=view.length; i++){
if (handle_scrollable_pages(view[i])){
visible_scrollable=1;
}
var page_element=$('.p'+view[i]);
if (page_element[0]){
page_turned(page,page_element);
}
}
if (CONFIG["show_peel_corner"] && !visible_scrollable){
// bug: showing peel disables the scrolling
show_peel_corner();
}
$('#id-pagenum').val(page);
music_handler();
autofit_text();
handle_scrollable_pages();
tb_updateState();
handle_pushstate(page);
handle_title();
show_bookmarks();
}//turned
// event to run when book is ready (called by build_book)
function init($book){
page_turned(0,$('.p0'));
page_turned(0,$('.p1'));
page_turned(0,$('.p2'));
page_turned(0,$('.p3'));
}
function autofit_text($elements){
if (CONFIG["autofit_text"]){
if (autofit_text_running)
return;
autofit_text_running=1;
var $visible = $(".page_content:visible");
$elements = $elements || $visible;
var w = $visible.width(),h=$visible.height();
if (w&&h){
$elements.each(function(){
var $container=$(this),
$content=$container.children(),
$imgs=$content.find('img');
$content.width(w).height(h);
try{
textFit($content.toArray(),CONFIG["textfit_options"]);
$imgs.load(function(){
textFit($content.toArray(),CONFIG["textfit_options"]);
});
}catch(e){
console.error(e);
}
});
}
autofit_text_running=0;
}
}
// turnjs resize event - redetect mobile state, and reset the book size
function resize(){
set_mobile_mode();
set_display_mode();
var width = $size_parent.width() - pages_depth_width;
var height = $size_parent.height();
$book_parent.width(width);
handle_pages_depth();
$book.turn("size",width,height);
autofit_text();
handle_scrollable_pages();
show_bookmarks();
}
// make changes to a content page
function process_page(page,page_element,page_content,title){
if (!page_element.runonce){
page_element.runonce = 1;
}//runonce
if (CONFIG["hr_to_read_more"]){
var hr = page_element.find("hr:first");
var hidden = hr.nextAll().addClass('hr_read_more_text').hide();
var clickable = $("<span class='hr_read_more_clickable'>").html(CONFIG["text_hr_read_more"]).click(function(){
clickable.remove();
hidden.slideDown();
});
hr.after(clickable);
}
if (CONFIG["remove_first_row_if_identical_to_page_title"] || CONFIG["bold_first_content_line"]){
var first_content_line = get_first_content_line(page_content[0]);
first_content_line.className+=' first_content_line';
}
if (CONFIG["remove_first_row_if_identical_to_page_title"]){
if ($.trim(first_content_line.textContent)==$.trim(title)){
first_content_line.style.display = 'none';
}
}
if (CONFIG["show_page_number"]){
page_element.find('.page_number').html(page - cover_pages_before);
}
if (window.process_page_hook)
window.process_page_hook(page, page_element, page_content, title);
var music = get_music_iframe(page,page_element,page_content,title);
if (music){
page_element.find('.page_content>div').append(music);
}
}// process_page
function get_music_iframe(page,page_element,page_content,title){
var trimrx = /\.[^\.]*$|_|-|%20| |\s+$|^\s+/g;
var book_entry = book_list[page_element.parent().attr('i')];
if (book_entry){
for (var i in music_list){
if (music_list[i].name && music_list[i].name.replace(trimrx,'')==book_entry.name.replace(trimrx,'')){
return $('<div class="music_pop"><iframe src="https://drive.google.com/file/d/'+music_list[i].id+'/preview" i="'+i+'"></iframe></div>');
}
}
}
}
// bind events to a page after it has turned
function page_turned(page,page_element){
if (!page_element[0])
return;
if (page_element[0].className.indexOf('index_page')>=0){
page_element.find('.idx_row').off().click(index_row_click);
}
if (window.page_turned_hook)
window.page_turned_hook(page, page_element);
}// page_turned
// load a specific page number using ajax
function load_page(page) {
if (page<=cover_pages_before || page>numpages - cover_pages_after || loaded_pages[page]){
return; // page out of range, a cover page, or is already loaded
}
if (CONFIG["show_page_number"]){
$('.p' + page + ' .page_number').html(page - cover_pages_before);
}
var index = page - cover_pages_before - 1; // index is zero-based, page is one-based
if (book_list[index] && book_list[index].id) {
loaded_pages[page]=1; // do not load same page twice
// Get the data for that page
var url = 'ajax.php?f=content&id=' + book_list[index].id + '&modifiedTime=' + book_list[index].modifiedTime;
// p.s: no need for cfg parameter here
ajax(url,function(data) {
if (data.error){
data.content = 'Error: ' + data.error;
loaded_pages[page]=0; // allow retry loading by turning pages
}
// Create an element for this page
var title = $.trim(data.name || book_list[index].name);
var element = tmpl('page');
if (CONFIG["show_page_title"]){
element.find('.page_title').html(title);
}
var page_content = element.find('.page_content');
page_content.html(data.content);
element.find('.print_footer').html(location.href+' ' + document.title);
$('#flipbook .p'+page).empty().append(element);
process_page(page,element,page_content,title);
autofit_text();
handle_scrollable_pages();
});
}
}// load page
// helper for remove_first_row_if_identical_to_page_title and bold_first_content_line
function get_first_content_line(element){
var children = $(element).find(':not(:empty)');
if (children.length){
// traverse all children
for (var i=0;i<children.length;i++){
var value = get_first_content_line(children[i]);
if (value!==undefined){
// stop when element is found (return element), or when we past the first element (return false)
return value;
}
}
} else {
// check current element
var content = $.trim(element.textContent);
if (content){
return get_display_block_parent(element,content);
}
}
}
// helper for get_first_content_line - find the display:block parent
function get_display_block_parent(element,content){
while(getComputedStyle(element)['display']!='block'){
var parent = element.parentElement;
if ($.trim(parent.textContent)!=content){
return element;
}
element = parent;
}
return element;
}
// handle scrollable pages
function handle_scrollable_pages(page){
page = page || current_page();
var scrollable;
var page_content = document.querySelector('.p'+page+' .page_content');
if (page_content){
scrollable = page_content.scrollHeight > page_content.offsetHeight + 10;
if (scrollable){
var $page_content = $(page_content);
$page_content.addClass('scrollable');
if (page_content_scroll_hide_page_number){
$page_content.scroll(page_content_scroll_hide_page_number);
}
}
}
return scrollable;
}
// handle ajax calls + local memory caching
function ajax(url,callback){
if (url in ajax_cache){