Add keyboard navigation module from http://photo.dragonsoft.us/clickcount/click.php?id=9

modules/kbd_nav/changelog.txt

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+Kbd Navigation Changelog
+
+version 1.5:
+- Fix for RTL detection
+- Added support for Wind theme
+
+version 1.4:
+- Added RTL detection
+
+version 1.3:
+- Internal revision
+
+version 1.2:
+- Added support for GreyDragon Photo Slideshow navigation - in Photo SB slideshow mode, key navigation is superseded by slideshow navigation. 
+
+version 1.1:
+- Internal revision
+
+version 1.0:
+- Initial release

modules/kbd_nav/helpers/kbd_nav_theme.php

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+<?php defined("SYSPATH") or die("No direct script access.");
+
+class Kbd_Nav_theme_Core {
+
+  static function head($theme) {
+    $theme->script("kbd_nav.js");
+  }
+}

modules/kbd_nav/js/kbd_nav.js

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+/**
+*
+* Copyright (c) 2010 Serguei Dosyukov, http://blog.dragonsoft.us
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation
+* files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy,
+* modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*
+*/
+
+$.fn.KbdNavigation = function(options, callback) {
+  
+  this.options = options || {};
+  var opt = this.options;
+  this.callback = callback || null;
+  var clbk = this.callback;
+
+  $(this).bind("keydown", function(event) {
+    if ($('#sb-body-inner>img#sb-content').is(':visible')) {
+      return false;
+    }
+
+    var direction = "ltr";
+    if (document.body) {
+      if (window.getComputedStyle) {
+        direction = window.getComputedStyle(document.body, null).direction;
+      } else if (document.body.currentStyle) {
+        direction = document.body.currentStyle.direction;
+      }
+    }
+
+    var lnk = "";
+    var lnk_first, lnk_prev, lnk_parent, lnk_next, lnk_last;
+
+    if(opt.first)  { lnk_first  = opt.first;  } else { lnk_first  = $("#g-navi-first").attr("href");  }
+    if(opt.prev)   { lnk_prev   = opt.prev;   } else { lnk_prev   = $("#g-navi-prev").attr("href");   }
+    if(opt.parent) { lnk_parent = opt.parent; } else { lnk_parent = $("#g-navi-parent").attr("href"); }
+    if(opt.next)   { lnk_next   = opt.next;   } else { lnk_next   = $("#g-navi-next").attr("href");   }
+    if(opt.last)   { lnk_last   = opt.last;   } else { lnk_last   = $("#g-navi-last").attr("href");   }
+
+    // Support for standard Wind Theme tags
+    if(!lnk_first) { lnk_first = $(".g-paginator .ui-icon-seek-first").parent().attr("href"); }
+    if(!lnk_prev)  { lnk_prev  = $(".g-paginator .ui-icon-seek-prev").parent().attr("href"); }
+    if(!lnk_next)  { lnk_next  = $(".g-paginator .ui-icon-seek-next").parent().attr("href");  }
+    if(!lnk_last)  { lnk_last  = $(".g-paginator .ui-icon-seek-end").parent().attr("href");  }
+
+    var keyCode = event.keyCode;
+
+    if (direction == "rtl") {
+      switch(keyCode) {
+        case 0x25: // Left
+          keyCode = 0x27;
+          break;
+        case 0x27: // Right
+          keyCode = 0x25;
+          break;
+      }
+    }
+    
+    switch(keyCode) {
+      case 0x25: // Ctr+Left/Left
+        if(event.ctrlKey) { lnk = lnk_first; } else { lnk = lnk_prev; }
+        break;  
+      case 0x26: // Ctrl+Up
+        if(event.ctrlKey) { lnk = lnk_parent; }
+        break; 
+      case 0x27: // Ctrl+Right/Right
+        if(event.ctrlKey) { lnk = lnk_last; } else { lnk = lnk_next; }
+        break;  
+    }
+    
+    if(lnk) {
+      if(typeof clbk == 'function') {
+        clbk();
+        return false;
+      } else {
+        window.location = lnk;
+        return true;
+      }
+    }
+    
+    return true;
+  });
+}
+
+$(document).ready( function() {
+  $(document).KbdNavigation({});
+  if ($('#sb-content').is(':visible')) { return true; }
+});

modules/kbd_nav/module.info

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+name = "Kbd Navigation"
+description = "Adds keyboard navigation to the gallery.<br />Version 1.5 | By <a href=http://blog.dragonsoft.us>Serguei Dosyukov</a> | <a href=http://codex.gallery2.org/Gallery3:Modules:kbd_nav>Visit plugin Site</a> | <a href=http://gallery.menalto.com/node/95438>Support</a>"
+version = 5