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 java.io.UnsupportedEncodingException;
  13 import java.util.List;
  14
  15 import org.apache.log4j.Logger;
  16
  17 import eu.svjatoslav.commons.file.FilePathParser;
  18 import eu.svjatoslav.commons.network.UrlParamEncoder;
  19 import eu.svjatoslav.meviz.htmlindexer.AbstractIndexer;
  20 import eu.svjatoslav.meviz.htmlindexer.Constants;
  21 import eu.svjatoslav.meviz.htmlindexer.IndexingContext;
  22 import eu.svjatoslav.meviz.htmlindexer.Layout;
  23 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
  24 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
  25 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.GeneralFile;
  26 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
  27
  28 public class MixedLayout implements Layout {
  29
  30         Logger logger = Logger.getLogger(MixedLayout.class);
  31
  32         StringBuffer dirHtml = new StringBuffer();
  33
  34         StringBuffer filesHtml = new StringBuffer();
  35
  36         String galleryTitle;
  37
  38         List<String> path;
  39
  40         public static final String encoding = "UTF-8";
  41
  42         int currentColumn = 0;
  43
  44         int horizontalColumnsLimit = 2;
  45
  46         private AbstractIndexer indexer;
  47
  48         private IndexingContext indexingContext;
  49
  50         public void columnAdded() {
  51                 currentColumn++;
  52                 if (currentColumn > horizontalColumnsLimit) {
  53
  54                         currentColumn = 0;
  55
  56                         filesHtml.append("</TR>\n");
  57                 }
  58         }
  59
  60         @Override
  61         public void enlistDirectory(final AbstractFile directory) {
  62                 dirHtml.append("<TR>");
  63                 dirHtml.append("<TD><b><a href=\""
  64                                 + indexer.getDirectoryUrl(directory, indexingContext)
  65                                 + "\"><h2> ==&gt; " + directory.fileName + "</h2></a></b></TD>");
  66                 dirHtml.append("</TR>\n");
  67
  68         }
  69
  70         @Override
  71         public void enlistFile(final AbstractFile file) {
  72                 finishRow();
  73
  74                 final String fullFileName = file.fileName;
  75
  76                 filesHtml.append("<TR>\n");
  77                 filesHtml.append("    <TD colspan=\""
  78                                 + String.valueOf(horizontalColumnsLimit)
  79                                 + "\"><a href=\""
  80                                 + indexingContext.getGlobalUrl()
  81                                 + UrlParamEncoder.encode(indexingContext.getLocalUrl() + "/"
  82                                                 + fullFileName) + "\">" + fullFileName + "</a>\n");
  83                 filesHtml.append("&nbsp;&nbsp;("
  84                                 + FilePathParser.getFileSizeDescription(file.getFileLength())
  85                                 + ")</TD>\n");
  86                 filesHtml.append("</TR>\n");
  87
  88         }
  89
  90         @Override
  91         public void enlistImage(final AbstractFile abstractFile) {
  92                 try {
  93
  94                         final Picture picture = (Picture) abstractFile;
  95
  96                         final Dimension imageSize = picture.getDimensions();
  97
  98                         final List<Dimension> recommendedDimensions = Picture
  99                                         .getThumbnailDimensions(imageSize);
 100
 101                         Dimension listingDimension = new Dimension(500, 500);
 102
 103                         if (listingDimension.width > imageSize.width)
 104                                 if (listingDimension.height > imageSize.height)
 105                                         listingDimension = imageSize;
 106
 107                         final String listingThumbnailUrl = indexer.getThumbnailUrl(picture,
 108                                         listingDimension, indexingContext);
 109
 110                         startcolumn();
 111
 112                         filesHtml.append("<TD><center><a href=\""
 113                                         + indexingContext.getGlobalUrl()
 114                                         + UrlParamEncoder.encode(indexingContext.getLocalUrl()
 115                                                         + "/" + picture.fileName) + "\">\n");
 116
 117                         filesHtml.append("<img border=\"0\" src=\"" + listingThumbnailUrl
 118                                         + "\"/></a>\n");
 119                         filesHtml.append("<br/><b>"
 120                                         + FilePathParser
 121                                                         .getFileNameWithoutExtension(picture.fileName)
 122                                         + "</b><br/>(");
 123
 124                         int count = 0;
 125                         for (final Dimension dimension : recommendedDimensions) {
 126                                 count++;
 127                                 if (count > 1)
 128                                         filesHtml.append(", ");
 129                                 filesHtml.append("<a href=\""
 130                                                 + indexer.getThumbnailUrl(picture, dimension,
 131                                                                 indexingContext) + "\">");
 132                                 filesHtml.append(dimension.width + "x" + dimension.height);
 133                                 filesHtml.append("</a>");
 134                         }
 135
 136                         filesHtml.append(")</TD>\n");
 137
 138                         columnAdded();
 139
 140                 } catch (final Exception e) {
 141                         logger.error(
 142                                         "Error generating thumbnails for image file: "
 143                                                         + e.toString()
 144                                                         + ", thumbnail generation skipped, enlisting as ordinary file instead.",
 145                                         e);
 146                         enlistFile(abstractFile);
 147                 }
 148         }
 149
 150         /** {@inheritDoc} */
 151         @Override
 152         public void enlistOgv(final AbstractFile abstractFile)
 153                         throws UnsupportedEncodingException {
 154
 155                 final GeneralFile file = (GeneralFile) abstractFile;
 156
 157                 finishRow();
 158
 159                 filesHtml
 160                                 .append("<TR style=\"background-color: #404040; text-align: center\">\n");
 161                 filesHtml.append("<TD style=\"text-align: center\" colspan=\""
 162                                 + String.valueOf(horizontalColumnsLimit) + "\">\n");
 163
 164                 filesHtml.append("<video controls=\"controls\" tabindex=\"0\">\n");
 165                 filesHtml
 166                                 .append("<source type=\"video/ogg\" codecs=\"theora, vorbis\" src=\""
 167                                                 + indexingContext.getGlobalUrl()
 168                                                 + UrlParamEncoder.encode(indexingContext.getLocalUrl()
 169                                                                 + "/" + file.fileName) + "\">\n");
 170                 filesHtml.append("</source>\n");
 171
 172                 filesHtml.append("</video>\n");
 173
 174                 filesHtml.append("<br/>\n");
 175
 176                 filesHtml
 177                                 .append("Video: <b>"
 178                                                 + FilePathParser
 179                                                                 .getFileNameWithoutExtension(file.fileName)
 180                                                 + "<b/>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
 181                 filesHtml.append("<a href=\""
 182                                 + indexingContext.getGlobalUrl()
 183                                 + UrlParamEncoder.encode(indexingContext.getLocalUrl() + "/"
 184                                                 + file.fileName) + "\">download as OGV</a>\n");
 185
 186                 filesHtml.append("</TD></TR>\n");
 187
 188         }
 189
 190         public void finishRow() {
 191
 192                 if (currentColumn == 0)
 193                         return;
 194
 195                 while (currentColumn <= horizontalColumnsLimit) {
 196                         filesHtml.append("<TD></TD>");
 197                         currentColumn++;
 198                 }
 199                 filesHtml.append("</TR>\n");
 200                 currentColumn = 0;
 201         }
 202
 203         /** {@inheritDoc} */
 204         @Override
 205         public String getFileNameSuffix() {
 206                 return "";
 207         }
 208
 209         /** {@inheritDoc} */
 210         @Override
 211         public String getHtml(final boolean showTitle,
 212                         final boolean doHtmlHeaderAndFooter) {
 213
 214                 // assemble final page HTML
 215                 final StringBuffer finalHtml = new StringBuffer();
 216
 217                 if (doHtmlHeaderAndFooter) {
 218                         // page header
 219                         finalHtml.append("<HTML>\n");
 220                         finalHtml.append("<HEAD>\n");
 221                         finalHtml
 222                                         .append("    <meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=UTF-8\"/>\n");
 223                         finalHtml.append("</HEAD>\n");
 224                         finalHtml
 225                                         .append("<BODY bgcolor=\"#000000\" alink=\"#50ffff\" link=\"#50ffff\" vlink=\"#ff50ff\" text=\"#ffffff\">\n");
 226                         finalHtml.append("<!-- " + Constants.HTML_MAGIC_STRING + " -->\n");
 227                         finalHtml.append("<!-- " + Constants.HTML_MEMO + " -->\n");
 228                         finalHtml.append("<font color=\"#ffffff\">\n");
 229                 }
 230
 231                 if (showTitle)
 232                         finalHtml
 233                                         .append("<CENTER><H1>" + galleryTitle + "</H1></CENTER>\n");
 234
 235                 finalHtml.append("<CENTER><H2>");
 236                 for (final String p : path)
 237                         finalHtml.append(" / " + p);
 238                 finalHtml.append("</H2></CENTER>\n");
 239
 240                 // append directory listing
 241                 finalHtml.append("<TABLE>\n");
 242
 243                 if (path.size() > 0) {
 244                         finalHtml.append("<TR>");
 245                         finalHtml.append("<TD><b><a href=\""
 246                                         + indexer.getParentDirectoryUrl(indexingContext)
 247                                         + "\"><h2> &lt;== parent directory</h2></a></b></TD>");
 248                         finalHtml.append("</TR>\n");
 249                 }
 250
 251                 finalHtml.append(dirHtml.toString());
 252                 finalHtml.append("\n<TR><TD><br></TD></TR>\n");
 253                 finalHtml.append("</TABLE>\n");
 254
 255                 // append file listing
 256
 257                 finishRow();
 258                 finalHtml.append("<TABLE width=\"1100\">\n");
 259                 finalHtml.append(filesHtml.toString());
 260                 finalHtml.append("\n</TABLE>\n");
 261
 262                 if (doHtmlHeaderAndFooter)
 263                         finalHtml.append("</font></BODY></HTML>\n");
 264
 265                 return finalHtml.toString();
 266         }
 267
 268         @Override
 269         public void init(final String galleryTitle, final List<String> path,
 270                         final AbstractIndexer indexer, final IndexingContext indexingContext) {
 271
 272                 this.indexer = indexer;
 273                 this.galleryTitle = galleryTitle;
 274                 this.path = path;
 275                 this.indexingContext = indexingContext;
 276
 277                 dirHtml = new StringBuffer();
 278                 filesHtml = new StringBuffer();
 279         }
 280
 281         public void startcolumn() {
 282                 if (currentColumn == 0) {
 283                         filesHtml.append("<TR>");
 284                         currentColumn = 1;
 285                 }
 286         }
 287
 288 }