src/main/java/eu/svjatoslav/meviz/htmlindexer/layouts/MixedLayout.java

   1 /*
   2  * Meviz - Various tools collection to work with multimedia.
   3  * Copyright (C) 2012 -- 2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU General Public License
   7  * as published by the Free Software Foundation.
   8  */
   9
  10 package eu.svjatoslav.meviz.htmlindexer.layouts;
  11
  12 import eu.svjatoslav.commons.file.FilePathParser;
  13 import eu.svjatoslav.meviz.htmlindexer.*;
  14 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
  15 import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
  16 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
  17 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.GeneralFile;
  18 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
  19 import org.apache.log4j.Logger;
  20
  21 import java.io.IOException;
  22 import java.util.List;
  23
  24 public class MixedLayout implements Layout {
  25
  26     public static final String encoding = "UTF-8";
  27
  28     private final Logger logger = Logger.getLogger(MixedLayout.class);
  29
  30     private StringBuffer dirHtml = new StringBuffer();
  31
  32     private StringBuffer filesHtml = new StringBuffer();
  33
  34     private String galleryTitle;
  35
  36     private List<String> path;
  37
  38     private AbstractIndexer indexer;
  39
  40     private IndexingContext indexingContext;
  41
  42     @Override
  43     public void enlistDirectory(final AbstractFile directory,
  44                                 final DirectoryMetadata parentDirectoryMetadata) {
  45         dirHtml.append("<TR>");
  46         dirHtml.append("<TD><b><a href=\""
  47                 + indexer.getDirectoryUrl(directory, indexingContext)
  48                 + "\"><h2> ==&gt; " + directory.fileName + "</h2></a></b></TD>");
  49         dirHtml.append("</TR>\n");
  50
  51     }
  52
  53     @Override
  54     public void enlistFile(final AbstractFile file,
  55                            final DirectoryMetadata parentDirectoryMetadata) {
  56
  57         final String fullFileName = file.fileName;
  58
  59         filesHtml.append("<div style=\"clear: both;\"><a href=\""
  60                 + indexingContext.getGlobalUrl()
  61                 + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
  62                 + fullFileName) + "\">" + fullFileName + "</a>\n");
  63         filesHtml.append("&nbsp;&nbsp;("
  64                 + FilePathParser.getFileSizeDescription(file.getFileLength())
  65                 + ")</div><br/>\n");
  66
  67     }
  68
  69     @Override
  70     public void enlistImage(final Picture picture,
  71                             final DirectoryMetadata parentDirectoryMetadata) {
  72         try {
  73             enlistImageInternal(picture);
  74         } catch (final Exception e) {
  75             logger.error(
  76                     "Error generating thumbnails for image file: "
  77                             + e.toString()
  78                             + ", thumbnail generation skipped, enlisting as ordinary file instead.",
  79                     e);
  80             enlistFile(picture, parentDirectoryMetadata);
  81         }
  82     }
  83
  84     private String enlistImageDimensions(final Picture picture) {
  85         final StringBuilder html = new StringBuilder();
  86
  87         final List<Dimension> recommendedDimensions = Picture
  88                 .getThumbnailDimensions(picture.getDimensions());
  89
  90         int count = 0;
  91         for (final Dimension dimension : recommendedDimensions) {
  92             count++;
  93             if (count > 1)
  94                 html.append(", ");
  95             html.append("<a href=\""
  96                     + indexer.getThumbnailUrl(picture, dimension,
  97                     indexingContext) + "\">");
  98             html.append(dimension.width + "x" + dimension.height);
  99             html.append("</a>");
 100         }
 101
 102         return html.toString();
 103     }
 104
 105     private void enlistImageInternal(final Picture picture) {
 106
 107         filesHtml.append("<div style=\"float:left; margin: 10px;\">");
 108
 109         // clickable image thumbnail
 110         filesHtml.append("<a href=\""
 111                 + indexingContext.getGlobalUrl()
 112                 + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
 113                 + picture.fileName) + "\">\n");
 114
 115         filesHtml.append("<img border=\"0\" src=\""
 116                 + getImageThumbnailUrl(picture) + "\"/></a><br/>\n");
 117
 118         // file name
 119         filesHtml.append("<b>"
 120                 + FilePathParser.getFileNameWithoutExtension(picture.fileName)
 121                 + "</b><br/>");
 122
 123         // links to thumbnails of various sizes
 124         filesHtml.append("(" + enlistImageDimensions(picture) + ")\n");
 125
 126         filesHtml.append("</div>");
 127     }
 128
 129     /**
 130      * {@inheritDoc}
 131      */
 132     @Override
 133     public void enlistOgv(final AbstractFile abstractFile,
 134                           final DirectoryMetadata parentDirectoryMetadata) {
 135
 136         final GeneralFile file = (GeneralFile) abstractFile;
 137
 138         filesHtml.append("<div style=\"margin: 30px; clear: both;\">");
 139
 140         // watchable video
 141         filesHtml
 142                 .append("<video preload=\"metadata\" controls=\"controls\" tabindex=\"0\">\n");
 143         filesHtml
 144                 .append("<source type=\"video/ogg\" codecs=\"theora, vorbis\" src=\""
 145                         + indexingContext.getGlobalUrl()
 146                         + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
 147                         + file.fileName) + "\">\n");
 148         filesHtml.append("</source>\n");
 149         filesHtml.append("</video>\n");
 150         filesHtml.append("<br/>\n");
 151
 152         // video title
 153         filesHtml
 154                 .append("Video: <b>"
 155                         + FilePathParser
 156                         .getFileNameWithoutExtension(file.fileName)
 157                         + "<b/>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
 158
 159         // video download link
 160         filesHtml.append("<a href=\""
 161                 + indexingContext.getGlobalUrl()
 162                 + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
 163                 + file.fileName) + "\">download as OGV file</a>");
 164
 165         filesHtml.append("</div>\n");
 166
 167         filesHtml.append("\n");
 168
 169     }
 170
 171     /**
 172      * {@inheritDoc}
 173      */
 174     @Override
 175     public String getFileNameSuffix() {
 176         return "";
 177     }
 178
 179     /**
 180      * {@inheritDoc}
 181      *
 182      * @throws IOException
 183      */
 184     @Override
 185     public String getHtml(final boolean showTitle,
 186                           final boolean doHtmlHeaderAndFooter,
 187                           final DirectoryMetadata directory) {
 188
 189         // assemble final page HTML
 190         final StringBuilder html = new StringBuilder();
 191
 192         if (doHtmlHeaderAndFooter)
 193             appendHtmlHeader(html);
 194
 195         if (showTitle)
 196             html.append("<CENTER><H1>" + galleryTitle + "</H1></CENTER>\n");
 197
 198         html.append(showCurrentPath());
 199         html.append(listDirectories());
 200         html.append(directory.getHeaderMevizMetadataHtml());
 201         html.append(filesHtml.toString());
 202
 203         if (doHtmlHeaderAndFooter)
 204             appendHtmlFooter(html);
 205
 206         return html.toString();
 207     }
 208
 209     private void appendHtmlFooter(StringBuilder html) {
 210         html.append("</font></BODY></HTML>\n");
 211     }
 212
 213     private void appendHtmlHeader(StringBuilder html) {
 214         // page header
 215         html.append("<HTML>\n");
 216         html.append("<HEAD>\n");
 217         html.append("    <meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=UTF-8\"/>\n");
 218         html.append("</HEAD>\n");
 219         html.append("<BODY bgcolor=\"#000000\" alink=\"#50ffff\" link=\"#50ffff\" vlink=\"#ff50ff\" text=\"#ffffff\">\n");
 220         html.append("<!-- " + Constants.HTML_MAGIC_STRING + " -->\n");
 221         html.append("<!-- " + Constants.HTML_MEMO + " -->\n");
 222         html.append("<font color=\"#ffffff\">\n");
 223     }
 224
 225     private String getImageThumbnailUrl(final Picture picture) {
 226         final Dimension imageSize = picture.getDimensions();
 227
 228         Dimension listingDimension = new Dimension(1500, 450);
 229
 230         if (listingDimension.width > imageSize.width)
 231             if (listingDimension.height > imageSize.height)
 232                 listingDimension = imageSize;
 233
 234         return indexer.getThumbnailUrl(picture, listingDimension,
 235                 indexingContext);
 236     }
 237
 238     @Override
 239     public void init(final String galleryTitle, final List<String> path,
 240                      final AbstractIndexer indexer, final IndexingContext indexingContext) {
 241
 242         this.indexer = indexer;
 243         this.galleryTitle = galleryTitle;
 244         this.path = path;
 245         this.indexingContext = indexingContext;
 246
 247         dirHtml = new StringBuffer();
 248         filesHtml = new StringBuffer();
 249     }
 250
 251     private String listDirectories() {
 252         final StringBuilder html = new StringBuilder();
 253         html.append("<TABLE>\n");
 254
 255         if (path.size() > 0) {
 256             html.append("<TR>");
 257             html.append("<TD><b><a href=\""
 258                     + indexer.getParentDirectoryUrl(indexingContext)
 259                     + "\"><h2> &lt;== parent directory</h2></a></b></TD>");
 260             html.append("</TR>\n");
 261         }
 262
 263         html.append(dirHtml.toString());
 264         html.append("\n<TR><TD><br></TD></TR>\n");
 265         html.append("</TABLE>\n");
 266
 267         return html.toString();
 268     }
 269
 270     private String showCurrentPath() {
 271         final StringBuilder html = new StringBuilder();
 272         html.append("<CENTER><H2>");
 273         for (final String p : path)
 274             html.append(" / " + p);
 275         html.append("</H2></CENTER>\n");
 276
 277         return html.toString();
 278     }
 279
 280     @Override
 281     public void enlistWebm(AbstractFile abstractFile,
 282                            DirectoryMetadata directory) {
 283         final GeneralFile file = (GeneralFile) abstractFile;
 284
 285         filesHtml.append("<div style=\"margin: 30px; clear: both;\">");
 286
 287         // watchable video
 288
 289         String fileUrl = indexingContext.getGlobalUrl()
 290                 + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
 291                 + file.fileName);
 292
 293         filesHtml.append("<video controls>\n");
 294         filesHtml.append("  <source src=\"" + fileUrl
 295                 + "\" type='video/webm;codecs=\"vp8, opus\"'/>\n");
 296         filesHtml.append("</video>\n");
 297         filesHtml.append("<br/>\n");
 298
 299         // video title
 300         filesHtml
 301                 .append("Video: <b>"
 302                         + FilePathParser
 303                         .getFileNameWithoutExtension(file.fileName)
 304                         + "<b/>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
 305
 306         // video download link
 307         filesHtml.append("<a href=\""
 308                 + indexingContext.getGlobalUrl()
 309                 + Utils.urlEncode(indexingContext.getLocalUrl() + "/"
 310                 + file.fileName) + "\">download as WebM file</a>");
 311
 312         filesHtml.append("</div>\n");
 313
 314         filesHtml.append("\n");
 315     }
 316 }