Merge pull request #4 from daviddelon/fd16162572806fb7a26dfd6c1de4b62…

…8bbb3271f

fil d'ariane

tools/templates/actions/ariane.php

@@ -0,0 +1,89 @@
+<?php
+// WikiTrails code V2.1 based on copyrighted code by G. M. Bowen & Andrew Somerville, 2005.
+// Version 2 stores the crumbs in the $_SESSION variable. This makes this feature usable for all users.
+// Originally Prepared for a SSHRC funded research project extended by Roland Stens, 2006. Licensed under GPL.
+// Please keep attributions if distributing code.  
+
+# Define the maximum breadcrumbs shown.
+if ($max = $this->GetParameter("nb")) {
+      $max = (int) $max;
+}
+else {
+    $max=4;
+}
+
+
+$crumbs=Array();
+
+# Just get the PageTage, no use in doing that more times than 1
+
+$wikireq = $_REQUEST['wiki'];
+// remove leading slash
+$wikireq = preg_replace("/^\//", "", $wikireq);
+// split into page/method, checking wiki name & method name (XSS proof)
+if (preg_match('`^' . '(' . "[A-Za-z0-9]+" . ')/(' . "[A-Za-z0-9_-]" . '*)' . '$`', $wikireq, $matches)) {
+    list(, $PageTag, $method) = $matches;
+}
+elseif (preg_match('`^' . "[A-Za-z0-9]+" . '$`', $wikireq)) {
+    $PageTag = $wikireq;
+}
+
+# Find out if the breadcrumbs were already stored.
+if (!isset($_SESSION['breadcrumbs'])) {
+# Not stored yet, so set the current page name in the crumbs array.
+    $crumbs[0]=$PageTag;
+} else {
+# The crumbs are already stored, so get them and put them in the crumbs array.
+    $crumbs=$_SESSION['breadcrumbs'];
+
+    if ($crumbs[count($crumbs)-1] != $this->GetPageTag() ) {
+# Test for the maximum amount of crumbs and if the last pagetag is not
+# the same as the last stored tag. If it is a duplicate we'll get rid of it later.
+        if (count($crumbs) >= $max and $PageTag != $crumbs[$max - 1]) {
+# Drop the first element in the crumbs array.
+            array_shift($crumbs);
+# Add the new page name to the last position in the array.
+            $crumbs[$max - 1]= $PageTag;
+        }
+        else {
+# Not at the maximum yet, then just add to page to the end of the array.
+            $crumbs[count($crumbs)]= $PageTag;
+        }   
+    }
+}
+
+# Get rid of duplicates, but only if they are in subsequent array locations.
+$count=1;
+$temp = Array();
+$target= Array();
+# Only do this, if you have 3 or more entries in the array
+if (count($crumbs) > 2) {
+    while ($count <= (count($crumbs) - 1)) {
+        $temp[$count - 1] = $crumbs[$count - 1];
+        $temp[$count] = $crumbs[$count];
+        $temp = array_unique($temp);
+        $target= $target + $temp;
+        $temp = "";
+        $count++;
+    }
+    $crumbs = $target;
+}
+else {
+    $crumbs = array_unique($crumbs);
+}      
+
+
+# Save the breadcrumbs.
+$_SESSION['breadcrumbs'] = $crumbs;
+
+# Create the trail by walking through the array of page names.
+$separator  = "\"\"<li>\"\"";
+$page_trail = "\"\"<ul class=\"breadcrumb\">\"\"";
+foreach ($crumbs as $this_crumb) {
+    $page_trail .= $separator."[[".$this_crumb."]]";
+    $separator   = "\"\"</li><span class=\"divider\">/</span><li>\"\"";
+}
+$page_trail .= "\"\"</ul>\"\"";
+
+echo $this->format($page_trail);
+?>