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// http://source.pixiv.net/www/js/novel_parser.js

var cur_page = 1;
var max_page = 1;
var temp_page = 1;
var illust_id_list = [];
var temp_illust_id_list = [];
var illust_html_list = [];
var temp_chapter_list = [];
var chapter_list = [];
var RPC_NOVEL_ILLUST_URL = "/novel/rpc_novel_illust.php";
function countPage(text, isEscaped)
{
    var plain_text = text;
    var parsed_text = "";
    var max_page = 1;

    if (plain_text.length > 0) {
        if (isEscaped) {
            parsed_text = plain_text;
        }else{
            parsed_text = plain_text.replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
        }
        parsed_text = parsed_text.replace(/\r\n?/g, "\n");

        // PAGE
        parsed_text = parsed_text.replace(/[\n]?\[newpage\][\n]?/g , '[newpage]');

        var page_array = parsed_text.split("[newpage]");

        max_page = page_array.length;
    }

    return max_page;
}

function parseNovel(text, isEscaped){
    var plain_text = text || '';

    var parsed_text = "";
    if (!(plain_text.length > 0)) {
        return false;
    }

    if (isEscaped) {
        parsed_text = plain_text;
    } else {
        parsed_text = plain_text.replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
    }
    parsed_text = parsed_text.replace(/\r\n?/g, "\n");

    // PAGE
    parsed_text = parsed_text.replace(/[\n]?\[newpage\][\n]/g, '[newpage]');

    // NEW_LINE
    parsed_text = parsed_text.replace(/\n/g, "<br>");

    var page_array = parsed_text.split("[newpage]");

    parsed_text = "";
    max_page = page_array.length;
    var parsed_page = "";
    for (var i = 0; i < max_page; i++) {
        style = ' style="display:none;"';
        parsed_page = '<div class="novel_article" id="page_' + (i + 1) + '"' + style + '>' + page_array[i] + '</div>';

        //CHAPTER
        temp_chapter_list = [];
        temp_page = i + 1;
        parsed_page = parsed_page.replace(/\[chapter:([^\]]+)\](<br>)?/g , push_chapter);
        for(var j = 0; j < temp_chapter_list.length; j++){
            chapter_list.push({ title:temp_chapter_list[j],
                                page:i+1,
                                id:j
            });
        }

        //ILLUST
        temp_illust_id_list = [];
        parsed_page.replace(/\[pixivimage:([1-9][0-9]*)(-[1-9][0-9]*)?\](<br>)?/g, push_image_id);

        parsed_text += parsed_page;
    }

    show_chapter_list();

    if (window.location.hash != "") {
        var hash = parseInt(window.location.hash.substring(1));
        if (hash > 1 && hash <= max_page) {
            cur_page = hash;
        }
    }

    var preview_area = jQuery("#preview_area")[0];
    if (preview_area.firstChild) {
        preview_area.removeChild(preview_area.firstChild);
    }
    preview_area.innerHTML = parsed_text;
    jump_to(cur_page);

    if (illust_id_list.length > 0) {
        jQuery.post(this.RPC_NOVEL_ILLUST_URL, {
            'illust_ids': encodeURIComponent(illust_id_list.join(',')),
            'mtime'     : pixiv.context.updated || parseInt(+new Date / 1000),
            'content_id': pixiv.context.illustId,
            'x_restrict': pixiv.context.explicit,
            'restrict'  : pixiv.context.permission,
            'user_id'   : pixiv.context.userId,
            'verbosity' : ''
        }, 'json').done(this.onLoad);
    }

    return true;
}

function show_chapter_list(){
    if(!jQuery("#novel_chapter")){
        return;
    }
    if (chapter_list.length > 0) {
        for (var i = 0; i < chapter_list.length; i++) {
            var chapter = chapter_list[i];
            jQuery("#novel_chapter .novel-outline").append('<li><a href="javascript:jump_to(' + chapter.page + ', true, ' + chapter.id + ');">' + chapter.title + '</a><em>' + chapter.page + '</em></li>');
            jQuery("#novel_chapter").show();
        }
    }
}

/* 挿絵タグからイラストIDを抽出、HTMLへ置換 */
function push_image_id(str, p1, p2){
    if (temp_illust_id_list.length != 0) {
        return '<span class="preview_page" style="color:#ff0000;font-weight:bold;">[エラー : 1ページ内に挿入できる挿絵タグは1つまでです]</span>';
    }
    var image_str = p1;
    if (p2 != undefined) {
        image_str += p2;
    }
    if (jQuery.inArray(image_str, temp_illust_id_list) == -1) {
        temp_illust_id_list.push(image_str);
    }
    if (jQuery.inArray(image_str, illust_id_list) == -1) {
        illust_id_list.push(image_str);
    }

    return '<span class="novelimage novelimage_' + image_str + '" illust_id="'+ image_str + '"><a href="/member_illust.php?mode=medium&illust_id=' + p1 + '" target="_blank"><img src="http://source.pixiv.net/source/pixpedia/images/noimage300.gif" /></a></span>';
}

/* 章タイトルの一覧を取得 */
function push_chapter(str, p1, p2){
    temp_chapter_list.push(p1);

    return '<p class="chapter" id="chapter_'+ temp_page +'_'+ (temp_chapter_list.length - 1) +'">' + p1 + '</p>';
}

function parse_page(plain_text){
    var parsed_page = plain_text;

    //ILLUST
    temp_illust_id_list = [];
    parsed_page = parsed_page.replace(/\[pixivimage:([1-9][0-9]*)(-[1-9][0-9]*)?\]/g , push_image_id);

    //JUMP(PAGE)
    parsed_page = parsed_page.replace(/\[jump:([0-9^\]]+)\]/g , push_jump_page);

    //JUMP(URI)
    parsed_page = parsed_page.replace(/\[\[jumpuri:([^\]]+)&gt; *([^\]]+)\]\]/g , push_jump_uri);

    return parsed_page;
}

/* 小説内リンクタグをHTMLへ置換 */
function push_jump_page(str, p1){
    var targetPage = parseInt(p1, 10);
    if(targetPage > max_page || targetPage < 1){
        return '<span class="preview_page" style="color:#ff0000;font-weight:bold;">[エラー : 小説内リンクに指定できないページです]</span>';
    }
    return '<a href="javascript:jump_to(' + targetPage + ', true);">' + targetPage + 'ページへ</a> ';
}

/* 小説外リンクタグをHTMLへ置換 */
function push_jump_uri(str, p1, p2){
    var title = p1;
    var uri = p2;

    if (title===null || title==='' || uri===null || uri==='') {
        return str;
    }
    title = title.replace(/^ +| +$/g, '');
    if (title === '' || uri === '' || !isUrl(uri)) {
        return str;
    }
    if (!isPixivUri(uri)) {
        return '<a href="/jump.php?'+encodeURIComponent(uri)+'" target="_blank">' + title + '</a> ';
    }
    return '<a href="'+uri+'">' + title + '</a> ';
}

//Thank you for rafaeltds. http://snippets.dzone.com/posts/show/452
function isUrl(s) {
    var regexp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
    return regexp.test(s);
}

function isPixivUri(uri) {
    var regexp = /(http|https):\/\/(\w+\.pixiv\.net.*|p\.tl\/i\/\d+|p\.tl\/e\/\d+|p\.tl\/t\/\d+)/;
    return regexp.test(uri);
}

function onLoad(response) {
    if (!response || !$.isArray(response)){
        return;
    }

    var id,html;
    jQuery.each(response, function(i, illust_set) {
        id = illust_set.id;
        html = illust_set.html;
        illust_html_list[id] = html;
    });

    jump_to(cur_page);
}

function page_prev(){
    if(cur_page <= 1) return false;
    jump_to(cur_page - 1, true);
    return false;
}

function page_next(){
    if(cur_page >= max_page) return false;
    jump_to(cur_page + 1, true);
    return false;
}
function jump_to(page, scroll, chapter_id){
    if (cur_page != page) {
        jQuery('#page_' + cur_page).css('display', 'none');
    }
    cur_page = page;

    var target_page = jQuery('#page_' + cur_page).css('display', 'block');
    if(!target_page.hasClass('parsed')){
        target_page.html(parse_page(target_page.html())).addClass('parsed');
    }
    target_page.find('.novelimage').each(function() {
        var el = jQuery(this);
        if(el.hasClass('added')) return;

        var illust_id = el.attr('illust_id');
        if(illust_id === null) return;
        if(!illust_html_list[illust_id]) return;

        el.html(illust_html_list[illust_id]).addClass('added');
    });

    display_page_navi(cur_page);

    if (scroll) {
        if(window.location.hash !== '#' + cur_page){
            window.location.replace('#' + cur_page);
        }
        if(chapter_id !== undefined){
            jQuery(window).scrollTop(jQuery("#chapter_"+ cur_page + "_" + chapter_id).offset().top);
        }else{
            var target = jQuery('.works_display');
            target.length || (target = jQuery('.novel_navi'));
            jQuery(window).scrollTop(target.offset().top);
        }
    }
}
function display_page_navi(page){
    jQuery(".button_prev").each(function() {
        jQuery(this).css('visibility', (cur_page <= 1)? "hidden": "visible");
    });

    jQuery(".button_next").each(function() {
        jQuery(this).css('visibility', (cur_page >= max_page)? "hidden": "visible");
    });

    jQuery(".page_num").each(function() {
        jQuery(this).html(page + " / " + max_page + " ページ");
    });

    jQuery(".commentback_page").each(function() {
        jQuery(this).val(page);
    });
}

function add_marker() {
    jQuery(".add_marker").each(function() {
        this.innerHTML = "Loading ...";
    });

    var i_id = pixiv.context.illustId,
        u_id = pixiv.user.id;

    pixiv.api.post('rpc_marker.php', {
        mode: 'save',
        i_id: i_id,
        u_id: u_id,
        page: cur_page
    }).done(function(data) {
        if (data.page) {
            message = '<span class="marker_page">' + data.page + '</span>ページにしおりをはさみました';
        }
        setTimeout(enable_add_marker, 30000); // avoid repeatedly clicking

        jQuery(".add_marker").each(function() {
            this.innerHTML = message;
        });
        jQuery(".marker_page").each(function() {
            this.innerHTML = data.page;
        });
        jQuery(".marker_link").each(function() {
            this.style.visibility = "visible";
        });
    });
}

function enable_marker_link(){
    jQuery(".marker_link").each(function() {
        jQuery(this).bind('click', function(){
            jump_to(parseInt(jQuery('.marker_page')[0].innerHTML), true);
        });
    });
}
function enable_add_marker(){
    jQuery(".add_marker").each(function() {
        jQuery(this).html('<a href="javascript:void(0);" onclick="add_marker();">しおりをはさむ</a>');
    });
}
function set_font_size(size){
    var list = ["small", "big"];
    jQuery('#preview_area').removeClass('novel_size_small novel_size_big');
    if (jQuery.inArray(size, list) != -1) {
        jQuery('#preview_area').addClass('novel_size_' + size);
    }else{
        size = '';
    }
    jQuery.cookie('novel_size', size, { expires: 365, path: '/'});
    load_font_config();
    return false;
}
function toggle_font_family(){
    var class_name = 'novel_font_pgothic';
    var bool = jQuery('#preview_area').toggleClass(class_name).hasClass(class_name);
    jQuery.cookie('novel_font', (bool)?'pgothic':'', { expires: 365, path: '/'});
    load_font_config();
    return false;
}
function toggle_line_height(){
    var class_name = 'novel_line_narrow';
    var bool = jQuery('#preview_area').toggleClass(class_name).hasClass(class_name);
    jQuery.cookie('novel_line', (bool)?'narrow':'', { expires: 365, path: '/'});
    load_font_config();
    return false;
}
function update_novel_navi(cookie_name, class_name, list){
    var value = jQuery.cookie(cookie_name);
    if (jQuery.inArray(value, list) != -1) {
        jQuery('#preview_area').addClass(cookie_name + '_' + value);
    }else{
        value = "";
    }
    jQuery(class_name).each(function(){
        if (jQuery(this).attr("cvalue") == value) {
            jQuery(this).addClass("on");
        } else {
            jQuery(this).removeClass("on");
        }
    });
}

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