MixedLayout.java

   1 /*
   2  * Meviz - Various tools collection to work with multimedia.
   3  * Copyright (C) 2012 -- 2019, 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 3 of the GNU Lesser General Public License
   7  * or later 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.AbstractIndexer;
  14 import eu.svjatoslav.meviz.htmlindexer.Constants;
  15 import eu.svjatoslav.meviz.htmlindexer.IndexingContext;
  16 import eu.svjatoslav.meviz.htmlindexer.Layout;
  17 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
  18 import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
  19 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
  20 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
  21 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Video;
  22 import org.apache.log4j.Logger;
  23
  24 import java.io.IOException;
  25 import java.util.List;
  26
  27 import static eu.svjatoslav.commons.file.FilePathParser.getFileNameWithoutExtension;
  28 import static eu.svjatoslav.meviz.htmlindexer.Utils.urlEncode;
  29
  30 public class MixedLayout implements Layout {
  31
  32     public static final String encoding = "UTF-8";
  33
  34     private final Logger logger = Logger.getLogger(MixedLayout.class);
  35
  36     private StringBuffer dirHtml = new StringBuffer();
  37
  38     private StringBuffer filesHtml = new StringBuffer();
  39
  40     private String galleryTitle;
  41
  42     private List<String> path;
  43
  44     private AbstractIndexer indexer;
  45
  46     private IndexingContext indexingContext;
  47
  48     @Override
  49     public void enlistDirectory(final AbstractFile directory,
  50                                 final DirectoryMetadata parentDirectoryMetadata) {
  51         dirHtml.append("<TR>");
  52         dirHtml.append("<TD><b><a href=\""
  53                 + indexer.getDirectoryUrl(directory, indexingContext)
  54                 + "\"><h2> ==&gt; " + directory.fileName + "</h2></a></b></TD>");
  55         dirHtml.append("</TR>\n");
  56
  57     }
  58
  59     @Override
  60     public void enlistFile(final AbstractFile file,
  61                            final DirectoryMetadata parentDirectoryMetadata) {
  62
  63         final String fullFileName = file.fileName;
  64
  65         filesHtml.append("<div style=\"clear: both;\"><a href=\""
  66                 + indexingContext.getGlobalUrl()
  67                 + urlEncode(indexingContext.getLocalUrl() + "/"
  68                 + fullFileName) + "\">" + fullFileName + "</a>\n");
  69         filesHtml.append("&nbsp;&nbsp;("
  70                 + FilePathParser.getFileSizeDescription(file.getFileLength())
  71                 + ")</div><br/>\n");
  72
  73     }
  74
  75     @Override
  76     public void enlistImage(final Picture picture,
  77                             final DirectoryMetadata parentDirectoryMetadata) {
  78         try {
  79             enlistImageInternal(picture);
  80         } catch (final Exception e) {
  81             logger.error(
  82                     "Error generating thumbnails for image file: "
  83                             + e.toString()
  84                             + ", thumbnail generation skipped, enlisting as ordinary file instead.",
  85                     e);
  86             enlistFile(picture, parentDirectoryMetadata);
  87         }
  88     }
  89
  90     private String enlistImageDimensions(final Picture picture) {
  91         final StringBuilder html = new StringBuilder();
  92
  93         final List<Dimension> recommendedDimensions = Picture
  94                 .getThumbnailDimensions(picture.getDimensions());
  95
  96         int count = 0;
  97         for (final Dimension dimension : recommendedDimensions) {
  98             count++;
  99             if (count > 1)
 100                 html.append(", ");
 101             html.append("<a href=\""
 102                     + indexer.getThumbnailUrl(picture, dimension,
 103                     indexingContext) + "\">");
 104             html.append(dimension.width + "x" + dimension.height);
 105             html.append("</a>");
 106         }
 107
 108         return html.toString();
 109     }
 110
 111     private void enlistImageInternal(final Picture picture) {
 112
 113         filesHtml.append("<div style=\"float:left; margin: 10px;\">");
 114
 115         // clickable image thumbnail
 116         filesHtml.append("<a href=\""
 117                 + indexingContext.getGlobalUrl()
 118                 + urlEncode(indexingContext.getLocalUrl() + "/"
 119                 + picture.fileName) + "\">\n");
 120
 121         filesHtml.append("<img border=\"0\" src=\""
 122                 + getImageThumbnailUrl(picture) + "\"/></a><br/>\n");
 123
 124         // file name
 125         filesHtml.append("<b>"
 126                 + getFileNameWithoutExtension(picture.fileName)
 127                 + "</b><br/>");
 128
 129         // links to thumbnails of various sizes
 130         filesHtml.append("(" + enlistImageDimensions(picture) + ")\n");
 131
 132         filesHtml.append("</div>");
 133     }
 134
 135     /**
 136      * {@inheritDoc}
 137      */
 138     @Override
 139     public String getFileNameSuffix() {
 140         return "";
 141     }
 142
 143     /**
 144      * {@inheritDoc}
 145      *
 146      * @throws IOException
 147      */
 148     @Override
 149     public String getHtml(final boolean showTitle,
 150                           final boolean doHtmlHeaderAndFooter,
 151                           final DirectoryMetadata directory) {
 152
 153         // assemble final page HTML
 154         final StringBuilder html = new StringBuilder();
 155
 156         if (doHtmlHeaderAndFooter)
 157             appendHtmlHeader(html);
 158
 159         if (showTitle)
 160             html.append("<CENTER><H1>" + galleryTitle + "</H1></CENTER>\n");
 161
 162         html.append(showCurrentPath());
 163         html.append(listDirectories());
 164         html.append(directory.getHeaderMevizMetadataHtml());
 165         html.append(filesHtml.toString());
 166
 167         if (doHtmlHeaderAndFooter)
 168             appendHtmlFooter(html);
 169
 170         return html.toString();
 171     }
 172
 173     private void appendHtmlFooter(StringBuilder html) {
 174         html.append("</font></BODY></HTML>\n");
 175     }
 176
 177     private void appendHtmlHeader(StringBuilder html) {
 178         // page header
 179         html.append("<HTML>\n");
 180         html.append("<HEAD>\n");
 181         html.append("    <meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=UTF-8\"/>\n");
 182         html.append("</HEAD>\n");
 183         html.append("<BODY bgcolor=\"#000000\" alink=\"#50ffff\" link=\"#50ffff\" vlink=\"#ff50ff\" text=\"#ffffff\">\n");
 184         html.append("<!-- " + Constants.HTML_MAGIC_STRING + " -->\n");
 185         html.append("<!-- " + Constants.HTML_MEMO + " -->\n");
 186         html.append("<font color=\"#ffffff\">\n");
 187     }
 188
 189     private String getImageThumbnailUrl(final Picture picture) {
 190         final Dimension imageSize = picture.getDimensions();
 191
 192         Dimension listingDimension = new Dimension(1500, 450);
 193
 194         if (listingDimension.width > imageSize.width)
 195             if (listingDimension.height > imageSize.height)
 196                 listingDimension = imageSize;
 197
 198         return indexer.getThumbnailUrl(picture, listingDimension,
 199                 indexingContext);
 200     }
 201
 202     @Override
 203     public void init(final String galleryTitle, final List<String> path,
 204                      final AbstractIndexer indexer, final IndexingContext indexingContext) {
 205
 206         this.indexer = indexer;
 207         this.galleryTitle = galleryTitle;
 208         this.path = path;
 209         this.indexingContext = indexingContext;
 210
 211         dirHtml = new StringBuffer();
 212         filesHtml = new StringBuffer();
 213     }
 214
 215     private String listDirectories() {
 216         final StringBuilder html = new StringBuilder();
 217         html.append("<TABLE>\n");
 218
 219         if (path.size() > 0) {
 220             html.append("<TR>");
 221             html.append("<TD><b><a href=\""
 222                     + indexer.getParentDirectoryUrl(indexingContext)
 223                     + "\"><h2> &lt;== parent directory</h2></a></b></TD>");
 224             html.append("</TR>\n");
 225         }
 226
 227         html.append(dirHtml.toString());
 228         html.append("\n<TR><TD><br></TD></TR>\n");
 229         html.append("</TABLE>\n");
 230
 231         return html.toString();
 232     }
 233
 234     private String showCurrentPath() {
 235         final StringBuilder html = new StringBuilder();
 236         html.append("<CENTER><H2>");
 237         for (final String p : path)
 238             html.append(" / " + p);
 239         html.append("</H2></CENTER>\n");
 240
 241         return html.toString();
 242     }
 243
 244     @Override
 245     public void enlistVideo(Video video) {
 246
 247         filesHtml.append("<div style=\"margin: 30px; clear: both;\">\n");
 248
 249         // watchable video
 250         filesHtml.append("  <video width=\"640\" controls>\n");
 251         filesHtml.append("    <source src=\"" + getFileUrl(video) + "\" type=\"" + video.mimeType + "\"/>\n");
 252         filesHtml.append("  </video>\n");
 253
 254         filesHtml.append("  <br/>\n");
 255
 256         // video title
 257         filesHtml.append("  Video: <b>"
 258                         + getFileNameWithoutExtension(video.fileName)
 259                         + "<b/>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
 260
 261         // video download link
 262         filesHtml.append("  <a href=\"" + getFileUrl(video) + "\">download</a>\n");
 263
 264         filesHtml.append("</div>\n");
 265
 266         filesHtml.append("\n");
 267     }
 268
 269
 270     private String getFileUrl(AbstractFile file) {
 271         return indexingContext.getGlobalUrl()
 272                     + urlEncode(indexingContext.getLocalUrl() + "/"
 273                     + file.fileName);
 274     }
 275 }