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

   1 /*
   2  * Meviz - Various tools collection to work with multimedia. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  */
   5
   6
   7 package eu.svjatoslav.meviz.htmlindexer.layouts;
   8
   9 import eu.svjatoslav.commons.file.FilePathParser;
  10 import eu.svjatoslav.meviz.htmlindexer.indexer.AbstractIndexer;
  11 import eu.svjatoslav.meviz.htmlindexer.Constants;
  12 import eu.svjatoslav.meviz.htmlindexer.IndexingContext;
  13 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
  14 import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
  15 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
  16 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
  17 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Video;
  18 import org.apache.log4j.Logger;
  19
  20 import java.io.IOException;
  21 import java.util.List;
  22
  23 import static eu.svjatoslav.commons.file.FilePathParser.getFileNameWithoutExtension;
  24 import static eu.svjatoslav.meviz.htmlindexer.Utils.urlEncode;
  25
  26 public class MixedLayout implements Layout {
  27
  28     public static final String encoding = "UTF-8";
  29
  30     private final Logger logger = Logger.getLogger(MixedLayout.class);
  31
  32     private StringBuffer dirHtml = new StringBuffer();
  33
  34     private StringBuffer filesHtml = new StringBuffer();
  35
  36     private String galleryTitle;
  37
  38     private List<String> path;
  39
  40     private AbstractIndexer indexer;
  41
  42     private IndexingContext indexingContext;
  43
  44     @Override
  45     public void enlistDirectory(final AbstractFile directory,
  46                                 final DirectoryMetadata parentDirectoryMetadata) {
  47         dirHtml.append("<TR>");
  48         dirHtml.append("<TD><b><a href=\""
  49                 + indexer.getDirectoryUrl(directory, indexingContext)
  50                 + "\"><h2> ==&gt; " + directory.fileName + "</h2></a></b></TD>");
  51         dirHtml.append("</TR>\n");
  52
  53     }
  54
  55     @Override
  56     public void enlistFile(final AbstractFile file,
  57                            final DirectoryMetadata parentDirectoryMetadata) {
  58
  59         final String fullFileName = file.fileName;
  60
  61         filesHtml.append("<div style=\"clear: both;\"><a href=\""
  62                 + indexingContext.getGlobalUrl()
  63                 + urlEncode(indexingContext.getLocalUrl() + "/"
  64                 + fullFileName) + "\">" + fullFileName + "</a>\n");
  65         filesHtml.append("&nbsp;&nbsp;("
  66                 + FilePathParser.getFileSizeDescription(file.getFileLength())
  67                 + ")</div><br/>\n");
  68
  69     }
  70
  71     @Override
  72     public void enlistImage(final Picture picture,
  73                             final DirectoryMetadata parentDirectoryMetadata) {
  74         try {
  75             enlistImageInternal(picture);
  76         } catch (final Exception e) {
  77             logger.error(
  78                     "Error generating thumbnails for image file: "
  79                             + e.toString()
  80                             + ", thumbnail generation skipped, enlisting as ordinary file instead.",
  81                     e);
  82             enlistFile(picture, parentDirectoryMetadata);
  83         }
  84     }
  85
  86     private String enlistImageDimensions(final Picture picture) {
  87         final StringBuilder html = new StringBuilder();
  88
  89         final List<Dimension> recommendedDimensions = Picture
  90                 .getThumbnailDimensions(picture.getDimensions());
  91
  92         int count = 0;
  93         for (final Dimension dimension : recommendedDimensions) {
  94             count++;
  95             if (count > 1)
  96                 html.append(", ");
  97             html.append("<a href=\""
  98                     + indexer.getThumbnailUrl(picture, dimension,
  99                     indexingContext) + "\">");
 100             html.append(dimension.width + "x" + dimension.height);
 101             html.append("</a>");
 102         }
 103
 104         return html.toString();
 105     }
 106
 107     private void enlistImageInternal(final Picture picture) {
 108
 109         filesHtml.append("<div style=\"float:left; margin: 10px;\">");
 110
 111         // clickable image thumbnail
 112         filesHtml.append("<a href=\""
 113                 + indexingContext.getGlobalUrl()
 114                 + urlEncode(indexingContext.getLocalUrl() + "/"
 115                 + picture.fileName) + "\">\n");
 116
 117         filesHtml.append("<img border=\"0\" src=\""
 118                 + getImageThumbnailUrl(picture) + "\"/></a><br/>\n");
 119
 120         // file name
 121         filesHtml.append("<b>"
 122                 + getFileNameWithoutExtension(picture.fileName)
 123                 + "</b><br/>");
 124
 125         // links to thumbnails of various sizes
 126         filesHtml.append("(" + enlistImageDimensions(picture) + ")\n");
 127
 128         filesHtml.append("</div>");
 129     }
 130
 131     /**
 132      * {@inheritDoc}
 133      */
 134     @Override
 135     public String getFileNameSuffix() {
 136         return "";
 137     }
 138
 139     /**
 140      * {@inheritDoc}
 141      *
 142      */
 143     @Override
 144     public String getHtml(final boolean showTitle,
 145                           final boolean doHtmlHeaderAndFooter,
 146                           final DirectoryMetadata directory) {
 147
 148         // assemble final page HTML
 149         final StringBuilder html = new StringBuilder();
 150
 151         if (doHtmlHeaderAndFooter)
 152             appendHtmlHeader(html);
 153
 154         if (showTitle)
 155             html.append("<CENTER><H1>" + galleryTitle + "</H1></CENTER>\n");
 156
 157         html.append(showCurrentPath());
 158         html.append(listDirectories());
 159         html.append(directory.getHeaderMevizMetadataHtml());
 160         html.append(filesHtml.toString());
 161
 162         if (doHtmlHeaderAndFooter)
 163             appendHtmlFooter(html);
 164
 165         return html.toString();
 166     }
 167
 168     private void appendHtmlFooter(StringBuilder html) {
 169         html.append("</font></BODY></HTML>\n");
 170     }
 171
 172     private void appendHtmlHeader(StringBuilder html) {
 173         // page header
 174         html.append("<HTML>\n");
 175         html.append("<HEAD>\n");
 176         html.append("    <meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=UTF-8\"/>\n");
 177         html.append("</HEAD>\n");
 178         html.append("<BODY bgcolor=\"#000000\" alink=\"#50ffff\" link=\"#50ffff\" vlink=\"#ff50ff\" text=\"#ffffff\">\n");
 179         html.append("<!-- " + Constants.HTML_MAGIC_STRING + " -->\n");
 180         html.append("<!-- " + Constants.HTML_MEMO + " -->\n");
 181         html.append("<font color=\"#ffffff\">\n");
 182     }
 183
 184     private String getImageThumbnailUrl(final Picture picture) {
 185         final Dimension imageSize = picture.getDimensions();
 186
 187         Dimension listingDimension = new Dimension(1500, 450);
 188
 189         if (listingDimension.width > imageSize.width)
 190             if (listingDimension.height > imageSize.height)
 191                 listingDimension = imageSize;
 192
 193         return indexer.getThumbnailUrl(picture, listingDimension,
 194                 indexingContext);
 195     }
 196
 197     @Override
 198     public void init(final String galleryTitle, final List<String> path,
 199                      final AbstractIndexer indexer, final IndexingContext indexingContext) {
 200
 201         this.indexer = indexer;
 202         this.galleryTitle = galleryTitle;
 203         this.path = path;
 204         this.indexingContext = indexingContext;
 205
 206         dirHtml = new StringBuffer();
 207         filesHtml = new StringBuffer();
 208     }
 209
 210     private String listDirectories() {
 211         final StringBuilder html = new StringBuilder();
 212         html.append("<TABLE>\n");
 213
 214         if (path.size() > 0) {
 215             html.append("<TR>");
 216             html.append("<TD><b><a href=\""
 217                     + indexer.getParentDirectoryUrl(indexingContext)
 218                     + "\"><h2> &lt;== parent directory</h2></a></b></TD>");
 219             html.append("</TR>\n");
 220         }
 221
 222         html.append(dirHtml.toString());
 223         html.append("\n<TR><TD><br></TD></TR>\n");
 224         html.append("</TABLE>\n");
 225
 226         return html.toString();
 227     }
 228
 229     private String showCurrentPath() {
 230         final StringBuilder html = new StringBuilder();
 231         html.append("<CENTER><H2>");
 232         for (final String p : path)
 233             html.append(" / " + p);
 234         html.append("</H2></CENTER>\n");
 235
 236         return html.toString();
 237     }
 238
 239     @Override
 240     public void enlistVideo(Video video) {
 241
 242         filesHtml.append("<div style=\"margin: 30px; clear: both;\">\n");
 243
 244         // watchable video
 245         filesHtml.append("  <video width=\"640\" controls>\n");
 246         filesHtml.append("    <source src=\"" + getFileUrl(video) + "\" type=\"" + video.mimeType + "\"/>\n");
 247         filesHtml.append("  </video>\n");
 248
 249         filesHtml.append("  <br/>\n");
 250
 251         // video title
 252         filesHtml.append("  Video: <b>"
 253                         + getFileNameWithoutExtension(video.fileName)
 254                         + "<b/>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
 255
 256         // video download link
 257         filesHtml.append("  <a href=\"" + getFileUrl(video) + "\">download</a>\n");
 258
 259         filesHtml.append("</div>\n");
 260
 261         filesHtml.append("\n");
 262     }
 263
 264
 265     private String getFileUrl(AbstractFile file) {
 266         return indexingContext.getGlobalUrl()
 267                     + urlEncode(indexingContext.getLocalUrl() + "/"
 268                     + file.fileName);
 269     }
 270 }