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

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