Merge pull request #108 from RicterZ/dev

Merge dev to master

README.rst

@@ -74,6 +74,12 @@ Download by tag name:
 
     nhentai --tag lolicon --download --page=2
 
+Download by language:
+
+.. code-block:: bash
+
+    nhentai --language english --download --page=2
+
 Download by artist name:
 
 .. code-block:: bash
@@ -84,13 +90,13 @@ Download by character name:
 
 .. code-block:: bash
 
-    nhentai --character kuro von einsbern --download
+    nhentai --character "kuro von einsbern" --download
 
 Download by parody name:
 
 .. code-block:: bash
 
-    nhentai --parody the idolmaster --download
+    nhentai --parody "the idolmaster" --download
 
 Download by group name:
 
@@ -102,7 +108,7 @@ Download using multiple tags (--tag, --character, --paordy and --group supported
 
 .. code-block:: bash
 
-    nhentai --tag lolicon, teasing --artist tamano kedama, atte nanakusa
+    nhentai --tag "lolicon, teasing" --artist "tamano kedama, atte nanakusa"
 
 Download your favorites with delay:
 

nhentai/cmdline.py

@@ -55,6 +55,7 @@ def cmd_parser():
     parser.add_option('--character', type='string', dest='character', action='store', help='download doujinshi by character')
     parser.add_option('--parody', type='string', dest='parody', action='store', help='download doujinshi by parody')
     parser.add_option('--group', type='string', dest='group', action='store', help='download doujinshi by group')
+    parser.add_option('--language', type='string', dest='language', action='store', help='download doujinshi by language')
     parser.add_option('--favorites', '-F', action='store_true', dest='favorites',
                       help='list or download your favorites.')
 
@@ -115,7 +116,7 @@ def cmd_parser():
 
     if args.main_viewer and not args.id and not args.keyword and \
             not args.tag and not args.artist and not args.character and \
-            not args.parody and not args.group and not args.favorites:
+            not args.parody and not args.group and not args.language and not args.favorites:
         generate_main_html()
         exit(0)
 
@@ -176,13 +177,13 @@ def cmd_parser():
 
     if (args.is_download or args.is_show) and not args.id and not args.keyword and \
             not args.tag and not args.artist and not args.character and \
-            not args.parody and not args.group and not args.favorites:
+            not args.parody and not args.group and not args.language and not args.favorites:
         logger.critical('Doujinshi id(s) are required for downloading')
         parser.print_help()
         exit(1)
 
     if not args.keyword and not args.id and not args.tag and not args.artist and \
-            not args.character and not args.parody and not args.group and not args.favorites:
+            not args.character and not args.parody and not args.group and not args.language and not args.favorites:
         parser.print_help()
         exit(1)
 

nhentai/command.py

@@ -70,6 +70,12 @@ def main():
         if options.is_download and doujinshis:
             doujinshi_ids = [i['id'] for i in doujinshis]
 
+    elif options.language:
+        doujinshis = tag_parser(options.language, max_page=options.max_page, index=5)
+        print_doujinshi(doujinshis)
+        if options.is_download and doujinshis:
+            doujinshi_ids = [i['id'] for i in doujinshis]
+
     elif options.keyword:
         doujinshis = search_parser(options.keyword, sorting=options.sorting, page=options.page)
         print_doujinshi(doujinshis)

nhentai/constant.py

@@ -21,7 +21,8 @@ TAG_URL = ['%s/tag' % BASE_URL,
            '%s/artist' % BASE_URL,
            '%s/character' % BASE_URL,
            '%s/parody' % BASE_URL,
-           '%s/group' % BASE_URL]
+           '%s/group' % BASE_URL,
+           '%s/language' % BASE_URL]
 
 TAG_API_URL = '%s/api/galleries/tagged' % BASE_URL
 LOGIN_URL = '%s/login/' % BASE_URL

nhentai/parser.py

@@ -163,7 +163,7 @@ def doujinshi_parser(id_):
     doujinshi['subtitle'] = subtitle.text if subtitle else ''
 
     doujinshi_cover = html.find('div', attrs={'id': 'cover'})
-    img_id = re.search('/galleries/([\d]+)/cover\.(jpg|png)$', doujinshi_cover.a.img.attrs['data-src'])
+    img_id = re.search('/galleries/([\d]+)/cover\.(jpg|png|gif)$', doujinshi_cover.a.img.attrs['data-src'])
 
     ext = []
     for i in html.find_all('div', attrs={'class': 'thumb-container'}):
@@ -187,7 +187,7 @@ def doujinshi_parser(id_):
 
     # gain information of the doujinshi
     information_fields = doujinshi_info.find_all('div', attrs={'class': 'field-name'})
-    needed_fields = ['Characters', 'Artists', 'Languages', 'Tags']
+    needed_fields = ['Characters', 'Artists', 'Languages', 'Tags', 'Parodies', 'Groups', 'Categories']
     for field in information_fields:
         field_name = field.contents[0].strip().strip(':')
         if field_name in needed_fields:
@@ -195,6 +195,9 @@ def doujinshi_parser(id_):
                     field.find_all('a', attrs={'class': 'tag'})]
             doujinshi[field_name.lower()] = ', '.join(data)
 
+    time_field = doujinshi_info.find('time')
+    if time_field.has_attr('datetime'):
+        doujinshi['date'] = time_field['datetime']
     return doujinshi
 
 
@@ -224,7 +227,7 @@ def tag_parser(tag_name, sorting='date', max_page=1, index=0):
     if ',' in tag_name:
         tag_name = [i.strip().replace(' ', '-') for i in tag_name.split(',')]
     else:
-        tag_name = tag_name.replace(' ', '-')
+        tag_name = tag_name.strip().replace(' ', '-')
     if sorting == 'date':
         sorting = ''
 
@@ -331,7 +334,7 @@ def __api_suspended_doujinshi_parser(id_):
     doujinshi['pages'] = len(response['images']['pages'])
 
     # gain information of the doujinshi
-    needed_fields = ['character', 'artist', 'language', 'tag']
+    needed_fields = ['character', 'artist', 'language', 'tag', 'parody', 'group', 'category']
     for tag in response['tags']:
         tag_type = tag['type']
         if tag_type in needed_fields:

nhentai/serializer.py

@@ -0,0 +1,79 @@
+# coding: utf-8
+import json
+import os
+
+def serialize(doujinshi, dir):
+    metadata = {'title'    : doujinshi.name,
+                'subtitle' : doujinshi.info.subtitle}
+    if doujinshi.info.date:
+        metadata['upload_date'] = doujinshi.info.date
+    if doujinshi.info.parodies:
+        metadata['parody']    = [i.strip() for i in doujinshi.info.parodies.split(',')]
+    if doujinshi.info.characters:
+        metadata['character']  = [i.strip() for i in doujinshi.info.characters.split(',')]
+    if doujinshi.info.tags:
+        metadata['tag']        = [i.strip() for i in doujinshi.info.tags.split(',')]
+    if doujinshi.info.artists:
+        metadata['artist']     = [i.strip() for i in doujinshi.info.artists.split(',')]
+    if doujinshi.info.groups:
+        metadata['group']      = [i.strip() for i in doujinshi.info.groups.split(',')]
+    if doujinshi.info.languages:
+        metadata['language']   = [i.strip() for i in doujinshi.info.languages.split(',')]
+    metadata['category']      = doujinshi.info.categories
+    metadata['URL']             = doujinshi.url
+    metadata['Pages']           = doujinshi.pages
+    with open(os.path.join(dir, 'metadata.json'), 'w', encoding="raw_unicode_escape") as f:
+        json.dump(metadata, f, separators=','':')
+
+
+def merge_json():
+    lst = []
+    output_dir = "./"
+    os.chdir(output_dir)
+    doujinshi_dirs = next(os.walk('.'))[1]
+    for folder in doujinshi_dirs:
+        files = os.listdir(folder)
+        if 'metadata.json' not in files:
+            continue
+        data_folder = output_dir + folder + '/' + 'metadata.json'
+        json_file = open(data_folder, 'r')
+        json_dict = {}
+        json_dict = json.load(json_file)
+        json_dict['Folder'] = folder
+        lst.append(json_dict)
+    return lst
+
+
+def serialize_unique(lst):
+    dictionary = {}
+    parody = []
+    character = []
+    tag = []
+    artist = []
+    group = []
+    for dic in lst:
+        if 'parody' in dic:
+            parody.extend([i for i in dic['parody']])
+        if 'character' in dic:
+            character.extend([i for i in dic['character']])
+        if 'tag' in dic:
+            tag.extend([i for i in dic['tag']])
+        if 'artist' in dic:
+            artist.extend([i for i in dic['artist']])
+        if 'group' in dic:
+            group.extend([i for i in dic['group']])
+    dictionary['parody'] = list(set(parody))
+    dictionary['character'] = list(set(character))
+    dictionary['tag'] = list(set(tag))
+    dictionary['artist'] = list(set(artist))
+    dictionary['group'] = list(set(group))
+    return dictionary
+
+
+def set_js_database():
+    with open('data.js', 'w') as f:
+        indexed_json = merge_json()
+        unique_json = json.dumps(serialize_unique(indexed_json), separators=','':')
+        indexed_json = json.dumps(indexed_json, separators=','':')
+        f.write('var data = '+indexed_json)
+        f.write(';\nvar tags = '+unique_json)

nhentai/utils.py

@@ -11,6 +11,7 @@ import requests
 
 from nhentai import constant
 from nhentai.logger import logger
+from nhentai.serializer import serialize, set_js_database
 
 
 def request(method, url, **kwargs):
@@ -79,19 +80,19 @@ def generate_html(output_dir='.', doujinshi_obj=None):
 
         image_html += '<img src="{0}" class="image-item"/>\n'\
             .format(image)
-
     html = readfile('viewer/index.html')
     css = readfile('viewer/styles.css')
     js = readfile('viewer/scripts.js')
 
     if doujinshi_obj is not None:
-        title = doujinshi_obj.name
+        serialize(doujinshi_obj, doujinshi_dir)
+        name = doujinshi_obj.name
         if sys.version_info < (3, 0):
-            title = title.encode('utf-8')
+            name = doujinshi_obj.name.encode('utf-8')
     else:
-        title = 'nHentai HTML Viewer'
+        name = {'title': 'nHentai HTML Viewer'}
 
-    data = html.format(TITLE=title, IMAGES=image_html, SCRIPTS=js, STYLES=css)
+    data = html.format(TITLE=name, IMAGES=image_html, SCRIPTS=js, STYLES=css)
     try:
         if sys.version_info < (3, 0):
             with open(os.path.join(doujinshi_dir, 'index.html'), 'w') as f:
@@ -112,10 +113,12 @@ def generate_main_html(output_dir='./'):
     Default output folder will be the CLI path.
     """
 
-    count = 0
     image_html = ''
+
     main = readfile('viewer/main.html')
     css = readfile('viewer/main.css')
+    js = readfile('viewer/main.js')
+
     element = '\n\
             <div class="gallery-favorite">\n\
                 <div class="gallery">\n\
@@ -130,12 +133,10 @@ def generate_main_html(output_dir='./'):
     doujinshi_dirs = next(os.walk('.'))[1]
 
     for folder in doujinshi_dirs:
-
         files = os.listdir(folder)
         files.sort()
 
         if 'index.html' in files:
-            count += 1
             logger.info('Add doujinshi \'{}\''.format(folder))
         else:
             continue
@@ -147,18 +148,19 @@ def generate_main_html(output_dir='./'):
             title = 'nHentai HTML Viewer'
 
         image_html += element.format(FOLDER=folder, IMAGE=image, TITLE=title)
-
     if image_html == '':
         logger.warning('None index.html found, --gen-main paused.')
         return
     try:
-        data = main.format(STYLES=css, COUNT=count, PICTURE=image_html)
+        data = main.format(STYLES=css, SCRIPTS=js, PICTURE=image_html)
         if sys.version_info < (3, 0):
             with open('./main.html', 'w') as f:
                 f.write(data)
         else:
             with open('./main.html', 'wb') as f:
                 f.write(data.encode('utf-8'))
+        shutil.copy(os.path.dirname(__file__)+'/viewer/logo.png', './')
+        set_js_database()
         logger.log(
             15, 'Main Viewer has been write to \'{0}main.html\''.format(output_dir))
     except Exception as e:
@@ -212,5 +214,3 @@ an invalid filename.
 def signal_handler(signal, frame):
     logger.error('Ctrl-C signal received. Stopping...')
     exit(1)
-
-

nhentai/viewer/index.html

@@ -2,6 +2,7 @@
 <html>
 <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes, viewport-fit=cover" />
     <title>{TITLE}</title>
     <style>
 {STYLES}

nhentai/viewer/main.css

@@ -1,79 +1,14 @@
 /*! normalize.css v5.0.0 | MIT License | github.com/necolas/normalize.css */
 /* Original from https://static.nhentai.net/css/main_style.9bb9b703e601.css */
-html {
-    font-family: sans-serif;
-    line-height: 1.15;
-    -ms-text-size-adjust: 100%;
-    -webkit-text-size-adjust: 100%
-}
-
-body {
-    margin: 0
-}
-
-h1 {
-    font-size: 2em;
-    margin: .67em 0
-}
-
 a {
     background-color: transparent;
     -webkit-text-decoration-skip: objects
 }
 
-a:active,a:hover {
-    outline-width: 0
-}
-
-abbr[title] {
-    border-bottom: none;
-    text-decoration: underline;
-    text-decoration: underline dotted
-}
-
-b,strong {
-    font-weight: inherit
-}
-
-b,strong {
-    font-weight: bolder
-}
-
-code,kbd,samp {
-    font-family: monospace,monospace;
-    font-size: 1em
-}
-
-small {
-    font-size: 80%
-}
-
-sub,sup {
-    font-size: 75%;
-    line-height: 0;
-    position: relative;
-    vertical-align: baseline
-}
-
-sub {
-    bottom: -.25em
-}
-
-sup {
-    top: -.5em
-}
-
 img {
     border-style: none
 }
 
-label {
-    display: block;
-    font-weight: 700;
-    text-align: justify;
-    white-space: nowrap
-}
-
 html {
     box-sizing: border-box
 }
@@ -82,10 +17,6 @@ html {
     box-sizing: inherit
 }
 
-h1,h2,h3,h4,h5,h6 {
-    font-weight: 700
-}
-
 body,html {
     font-family: 'Noto Sans',sans-serif;
     font-size: 14px;
@@ -104,25 +35,6 @@ a {
     color: #34495e
 }
 
-a:hover {
-    text-decoration: none;
-    color: #ed2553
-}
-
-a.count {
-    color: #999
-}
-
-a.bold {
-    font-weight: 700
-}
-
-code {
-    color: #ed2553;
-    border: 1px solid #fbd3dd;
-    background-color: #fef0f3
-}
-
 blockquote {
     border: 0
 }
@@ -130,15 +42,15 @@ blockquote {
 .container {
     display: block;
     clear: both;
-    margin-left: auto;
+    margin-left: 15rem;
-    margin-right: auto;
+    margin-right: 0.5rem;
-    margin-bottom: 10px;
+    margin-bottom: 5px;
-    margin-top: 10px;
+    margin-top: 5px;
-    padding: 10px;
+    padding: 4px;
     border-radius: 9px;
     background-color: #ecf0f1;
-    width: 100%;
+    width: 100% - 15rem;
-    max-width: 1200px
+    max-width: 1500px
 }
 
 .gallery,.gallery-favorite,.thumb-container {
@@ -156,7 +68,6 @@ blockquote {
     .gallery,.gallery-favorite,.thumb-container {
         width:19%;
         margin: 3px;
-        margin-bottom: 8px
     }
 }
 
@@ -222,6 +133,186 @@ blockquote {
     width: 100%
 }
 
+.sidenav {
+  height: 100%;
+  width: 15rem;
+  position: fixed;
+  z-index: 1;
+  top: 0;
+  left: 0;
+  background-color: #0d0d0d;
+  overflow: hidden;
+
+  padding-top: 20px;
+  -webkit-touch-callout: none; /* iOS Safari */
+  -webkit-user-select: none; /* Safari */
+  -khtml-user-select: none; /* Konqueror HTML */
+  -moz-user-select: none; /* Old versions of Firefox */
+  ms-user-select: none; /* Internet Explorer/Edge */
+  user-select: none;
+}
+
+.sidenav a {
+  background-color: #eee;
+  padding: 5px 0px 5px 15px;
+  text-decoration: none;
+  font-size: 15px;
+  color: #0d0d0d9;
+  display: block;
+  text-align: left;
+}
+.sidenav img {
+	width:100%;
+	padding: 0px 5px 0px 5px;
+
+}
+
+.sidenav h1 {
+    font-size: 1.5em;
+	margin: 0px 0px 10px;
+}
+
+.sidenav a:hover {
+  color: white;
+  background-color: #EC2754;
+}
+
+.accordion {
+  font-weight: bold;
+  background-color: #eee;
+  color: #444;
+  padding: 10px 0px 5px 8px;
+  width: 100%;
+  border: none;
+  text-align: left;
+  outline: none;
+  font-size: 15px;
+  transition: 0.4s;
+  cursor:pointer;
+}
+
+.accordion:hover {
+  background-color: #ddd;
+}
+
+.accordion.active{
+  background-color:#ddd;
+}
+
+.nav-btn {
+  font-weight: bold;
+  background-color: #eee;
+  color: #444;
+  padding: 8px 8px 5px 9px;
+  width: 100%;
+  border: none;
+  text-align: left;
+  outline: none;
+  font-size: 15px;
+}
+
+.hidden {
+  display:none;
+}
+
+.nav-btn a{
+  font-weight: normal;
+  padding-right: 10px;
+  border-radius: 15px;
+  cursor: crosshair
+}
+
+.options {
+  display:block;
+  padding: 0px 0px 0px 0px;
+  background-color: #eee;
+  max-height: 0;
+  overflow: hidden;
+  transition: max-height 0.2s ease-out;
+  cursor:pointer;
+}
+
+.search{
+  background-color: #eee;
+  padding-right:40px;
+  white-space: nowrap;
+  padding-top: 5px;
+  height:43px;
+
+}
+
+.search input{
+  border-top-right-radius:10px;
+  padding-top:0;
+  padding-bottom:0;
+  font-size:1em;
+  width:100%;
+  height:38px;
+  vertical-align:top;
+}
+
+.btn{
+  border-top-left-radius:10px;
+  color:#fff;
+  font-size:100%;
+  padding: 8px;
+  width:38px;
+  background-color:#ed2553;
+}
+
+#tags{
+    text-align:left;
+    display: flex;
+	width:15rem;
+    justify-content: start;
+	margin: 2px 2px 2px 0px;
+	flex-wrap: wrap;
+}
+
+.btn-2{
+  font-weight:700;
+  padding-right:0.5rem;
+  padding-left:0.5rem;
+  color:#fff;
+  border:0;
+  font-size:100%;
+  height:1.25rem;
+  outline: 0;
+  border-radius: 0.3rem;
+  cursor: pointer;
+  margin:0.15rem;
+  transition: all 1s linear;
+}
+
+.btn-2#parody{
+  background-color: red;
+}
+
+.btn-2#character{
+  background-color: blue;
+}
+
+.btn-2#tag{
+  background-color: green;
+}
+
+.btn-2#artist{
+  background-color: fuchsia;
+}
+
+.btn-2#group{
+  background-color: teal;
+}
+
+.btn-2.hover{
+  filter: saturate(20%)
+}
+
+input,input:focus{
+  border:none;
+  outline:0;
+}
+
 html.theme-black,html.theme-black body {
     color: #d9d9d9;
     background-color: #0d0d0d
@@ -231,14 +322,6 @@ html.theme-black #thumbnail-container,html.theme-black .container {
     background-color: #1f1f1f
 }
 
-html.theme-black #thumbnail-container .lazyload,html.theme-black .lazyload {
-    background-color: #262626
-}
-
-html.theme-black #thumbnail-container .lazyload-loading,html.theme-black .lazyload-loading {
-    background-color: #2e2e2e
-}
-
 html.theme-black .gallery:hover .caption {
     box-shadow: 0 10px 20px rgba(0,0,0,.5)
 }
@@ -247,9 +330,3 @@ html.theme-black .caption {
     background-color: #404040;
     color: #d9d9d9
 }
-
-html.theme-black code {
-    color: #ed2553;
-    border: none;
-    background-color: #292929
-}

nhentai/viewer/main.html

@@ -5,7 +5,8 @@
     <meta charset="utf-8" />
     <meta name="theme-color" content="#1f1f1f" />
     <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes, viewport-fit=cover" />
-    <title>nHentai &raquo; Viewer</title>
+    <title>nHentai Viewer</title>
+    <script type="text/javascript" src="data.js"></script>
         <!-- <link rel="stylesheet" href="./main.css"> -->
 <style>
 {STYLES}
@@ -14,9 +15,27 @@
 
 <body>
     <div id="content">
-
+        <nav class="sidenav">
-        <h1>Main Folder({COUNT})</h1>
+			<img src="logo.png">
-
+			<h1>nHentai Viewer</h1>
+                        <button class="accordion">Language</button>
+            <div class="options" id="language">
+                    <a>English</a>
+                    <a>Japanese</a>
+                    <a>Chinese</a>
+            </div>
+			<button class="accordion">Category</button>
+            <div class="options" id ="category">
+                    <a>Doujinshi</a>
+                    <a>Manga</a>
+            </div>
+			<button class="nav-btn hidden">Filters</button>
+			<div class="search">
+				<input autocomplete="off" type="search" id="tagfilter" name="q" value="" autocapitalize="none" required="">
+				<svg class="btn" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="white" d="M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z"/></svg>
+			<div id="tags">
+			</div>
+		</nav>
         <div class="container" id="favcontainer">
 
             {PICTURE}
@@ -24,7 +43,9 @@
         </div> <!-- container -->
 
     </div>
-
+<script>
+    {SCRIPTS}
+</script>
 </body>
 
 </html>

nhentai/viewer/main.js

@@ -0,0 +1,177 @@
+    //------------------------------------navbar script------------------------------------
+var menu = document.getElementsByClassName("accordion");
+for (var i = 0; i < menu.length; i++) {
+  menu[i].addEventListener("click", function() {
+    var panel = this.nextElementSibling;
+    if (panel.style.maxHeight) {
+	  this.classList.toggle("active");
+      panel.style.maxHeight = null;
+    } else {
+      panel.style.maxHeight = panel.scrollHeight + "px";
+	  this.classList.toggle("active");
+    }
+  });
+}
+var language = document.getElementById("language").children;
+for (var i = 0; i < language.length; i++){
+	language[i].addEventListener("click", function() {
+		toggler = document.getElementById("language")
+		toggler.style.maxHeight = null;
+		document.getElementsByClassName("accordion")[0].classList.toggle("active");
+		filter_maker(this.innerText, "language");
+});
+}
+var category = document.getElementById("category").children;
+for (var i = 0; i < category.length; i++){
+	category[i].addEventListener("click", function() {
+		document.getElementById("category").style.maxHeight = null;
+		document.getElementsByClassName("accordion")[1].classList.toggle("active");
+		filter_maker(this.innerText, "category");
+});
+}
+//-----------------------------------------------------------------------------------
+//----------------------------------Tags Script--------------------------------------
+tag_maker(tags);
+
+var tag = document.getElementsByClassName("btn-2");
+for (var i = 0; i < tag.length; i++){
+	tag[i].addEventListener("click", function() {
+	filter_maker(this.innerText, this.id);
+});
+}
+
+var input = document.getElementById("tagfilter");
+input.addEventListener("input", function() {
+	var tags = document.querySelectorAll(".btn-2");
+	if (this.value.length > 0) {
+        for (var i = 0; i < tags.length; i++) {
+            var tag = tags[i];
+            var nome = tag.innerText;
+            var exp = new RegExp(this.value, "i");;
+            if (exp.test(nome)) {
+                tag.classList.remove("hidden");
+		    }
+			else {
+				tag.classList.add("hidden");
+            }
+        }
+    } else {
+        for (var i = 0; i < tags.length; i++) {
+            var tag = tags[i];
+				tag.classList.add('hidden');
+        }
+    }
+});
+input.addEventListener('keypress', function (e) {
+	enter_search(e, this.value);
+});
+//-----------------------------------------------------------------------------------
+//------------------------------------Functions--------------------------------------
+function enter_search(e, input){
+	var count = 0;
+	var key = e.which || e.keyCode;
+	if (key === 13 && input.length > 0) {
+	  var all_tags = document.getElementById("tags").children;
+	  for(i = 0; i < all_tags.length; i++){
+		if (!all_tags[i].classList.contains("hidden")){
+			count++;
+			var tag_name = all_tags[i].innerText;
+			var tag_id   = all_tags[i].id;
+			if (count>1){break}
+		}
+	  }
+	  if (count == 1){
+		filter_maker(tag_name, tag_id);
+	  }
+	}
+}
+function filter_maker(text, class_value){
+    var check = filter_checker(text);
+	var nav_btn = document.getElementsByClassName("nav-btn")[0];
+	if (nav_btn.classList.contains("hidden")){
+	  nav_btn.classList.toggle("hidden");
+	}
+	if (check == true){
+		var node = document.createElement("a");
+		var textnode = document.createTextNode(text);
+		node.appendChild(textnode);
+		node.classList.add(class_value);
+		nav_btn.appendChild(node);
+		filter_searcher();
+	}
+}
+
+function filter_searcher(){
+	var verifier = null;
+	var tags_filter = [];
+	var doujinshi_id = [];
+	var filter_tag = document.getElementsByClassName("nav-btn")[0].children;
+	filter_tag[filter_tag.length-1].addEventListener("click", function() {
+		this.remove();
+		try{
+			filter_searcher();
+		}
+		catch{
+			var gallery = document.getElementsByClassName("gallery-favorite");
+			for (var i = 0; i < gallery.length; i++){
+				gallery[i].classList.remove("hidden");
+			}
+		}
+	});
+	for (var i=0; i < filter_tag.length; i++){
+		var fclass = filter_tag[i].className;
+		var fname = filter_tag[i].innerText.toLowerCase();
+		tags_filter.push([fclass, fname])
+	}
+	for (var i=0; i < data.length; i++){
+		for (var j=0; j < tags_filter.length; j++){
+			try{
+				if(data[i][tags_filter[j][0]].includes(tags_filter[j][1])){
+					verifier = true;
+				}
+				else{
+					verifier = false;
+					break
+				}
+			}
+			catch{
+				verifier = false;
+					break
+			}
+		}
+		if (verifier){doujinshi_id.push(data[i].Folder);}
+	}
+	var gallery = document.getElementsByClassName("gallery-favorite");
+	for (var i = 0; i < gallery.length; i++){
+		gtext = gallery	[i].children[0].children[0].children[1].innerText;
+		if(doujinshi_id.includes(gtext)){
+			gallery[i].classList.remove("hidden");
+		}
+		else{
+		gallery[i].classList.add("hidden");
+		}
+	}
+}
+
+function filter_checker(text){
+    var filter_tags = document.getElementsByClassName("nav-btn")[0].children;
+	if (filter_tags == null){return true;}
+	for (var i=0; i < filter_tags.length; i++){
+		if (filter_tags[i].innerText == text){return false;}
+	}
+	return true;
+}
+
+function tag_maker(data){
+	for (i in data){
+		for (j in data[i]){
+			var node = document.createElement("button");
+			var textnode = document.createTextNode(data[i][j]);
+			node.appendChild(textnode);
+			node.classList.add("btn-2");
+			node.setAttribute('id', i);
+			node.classList.add("hidden");
+			document.getElementById("tags").appendChild(node);
+		}
+	}
+}

nhentai/viewer/styles.css

@@ -1,3 +1,4 @@
+  
 *, *::after, *::before {
     box-sizing: border-box;
 }