better scanning model for gallery, more feedback to user while scanning

apps/gallery/ajax/galleryOp.php

@@ -37,39 +37,61 @@ function handleRemove($name) {
   OC_Gallery_Album::remove(OC_User::getUser(), $name);
 }
 
-function handleGetThumbnails($albumname)
-{
+function handleGetThumbnails($albumname) {
   OC_JSON::checkLoggedIn();
   $photo = new OC_Image();
   $photo->loadFromFile(OC::$CONFIG_DATADIRECTORY.'/../gallery/'.$albumname.'.png');
   $photo->show();
 }
 
-function handleGalleryScanning()
-{
+function handleGalleryScanning() {
   OC_JSON::checkLoggedIn();
   OC_Gallery_Scanner::cleanup();
   OC_JSON::success(array('albums' => OC_Gallery_Scanner::scan('/')));
 }
 
+function handleFilescan() {
+  OC_JSON::checkLoggedIn();
+  $pathlist = OC_Gallery_Scanner::find_paths('/');
+  sort($pathlist);
+  OC_JSON::success(array('paths' => $pathlist));
+}
+
+function handlePartialCreate($path) {
+  OC_JSON::checkLoggedIn();
+  if (empty($path)) OC_JSON::error(array('cause' => 'No path specified'));
+  if (!OC_Filesystem::is_dir($path)) OC_JSON::error(array('cause' => 'Invalid path given'));
+
+  $album = OC_Gallery_Album::find(OC_User::getUser(), null, $path);
+  $albums;
+  OC_Gallery_Scanner::scanDir($path, $albums);
+  OC_JSON::success(array('album_details' => $albums));
+}
+
 if ($_GET['operation']) {
   switch($_GET['operation']) {
-	case "rename":
+  case 'rename':
 	  handleRename($_GET['oldname'], $_GET['newname']);
 	  OC_JSON::success(array('newname' => $_GET['newname']));
 	break;
-	case "remove":
+  case 'remove':
 	  handleRemove($_GET['name']);
 	  OC_JSON::success();
     break;
-  case "get_covers":
+  case 'get_covers':
     handleGetThumbnails($_GET['albumname']);
     break;
-  case "scan":
+  case 'scan':
     handleGalleryScanning();
     break;
+  case 'filescan':
+    handleFilescan();
+    break;
+  case 'partial_create':
+    handlePartialCreate($_GET['path']);
+    break;
   default:
-     OC_JSON::error(array('cause' => "Unknown operation"));
+    OC_JSON::error(array('cause' => 'Unknown operation'));
   }
 }
 ?>

apps/gallery/js/album_cover.js

@@ -4,10 +4,11 @@ $(document).ready(function() {
     if (r.status == 'success') {
       for (var i in r.albums) {
         var a = r.albums[i];
-        Albums.add(a.name, a.numOfItems, a.bgPath);
+        Albums.add(a.name, a.numOfItems);
       }
       var targetDiv = document.getElementById('gallery_list');
       if (targetDiv) {
+        $(targetDiv).html('');
         Albums.display(targetDiv);
       } else {
         alert('Error occured: no such layer `gallery_list`');
@@ -30,14 +31,42 @@ function createNewAlbum() {
   }
 }
 
+var albumCounter = 0;
+var totalAlbums = 0;
+
 function scanForAlbums() {
+  var albumCounter = 0;
+  var totalAlbums = 0;
+  $('#notification').text("Scanning directories");
   $("#notification").fadeIn();
   $("#notification").slideDown();
-  $.getJSON('ajax/galleryOp.php?operation=scan', function(r) {
-    $("#notification").fadeOut();
-    $("#notification").slideUp();
+  $.getJSON('ajax/galleryOp.php?operation=filescan', function(r) {
+
     if (r.status == 'success') {
-      window.location.reload(true);
+      totalAlbums = r.paths.length;
+      $('#notification').text("Creating thumbnails ... " + Math.floor((albumCounter/totalAlbums)*100) + "%");
+      for(var a in r.paths) {
+        $.getJSON('ajax/galleryOp.php?operation=partial_create&path='+r.paths[a], function(r) {
+
+          if (r.status == 'success') {
+            Albums.add(r.album_details.albumName, r.album_details.imagesCount);
+          }
+
+          albumCounter++;
+          $('#notification').text("Creating thumbnails ... " + Math.floor((albumCounter/totalAlbums)*100) + "%");
+          if (albumCounter == totalAlbums) {
+            $("#notification").fadeOut();
+            $("#notification").slideUp();
+            var targetDiv = document.getElementById('gallery_list');
+            if (targetDiv) {
+              targetDiv.innerHTML = '';
+              Albums.display(targetDiv);
+            } else {
+              alert('Error occured: no such layer `gallery_list`');
+            }
+          }
+        });
+      }
     } else {
       alert('Error occured: ' + r.message);
     }
@@ -48,8 +77,8 @@ function galleryRemove(albumName) {
   if (confirm("Do you wan't to remove album " + albumName + "?")) {
 	$.getJSON("ajax/galleryOp.php", {operation: "remove", name: albumName}, function(r) {
 	  if (r.status == "success") {
-		$("#gallery_album_box[title='"+albumName+"']").remove();
-		Albums.remove(albumName);
+      $("#gallery_album_box[title='"+albumName+"']").remove();
+      Albums.remove(albumName);
 	  } else {
 		alert("Error: " + r.cause);
 	  }

apps/gallery/js/albums.js

@@ -12,13 +12,9 @@ Albums={
   // album with the same name wont be insered,
   // and false will be returned
   // true on success
-  add: function(album_name, num, bgPath) {
-    for (var a in Albums.albums) {
-      if (a.name == album_name) {
-        return false;
-      }
-    }
-    Albums.albums.push({name: album_name, numOfCovers: num, backgroundPath: bgPath});
+  add: function(album_name, num) {
+    if (Albums.albums[album_name] != undefined) return false;
+    Albums.albums[album_name] = {name: album_name, numOfCovers: num};
     return true;
   },
   // remove element with given name
@@ -40,19 +36,7 @@ Albums={
   // return element which match given name
   // of undefined if such element do not exist
   find: function(name) {
-    var i = -1, tmp = 0;
-    for (var k in Albums.albums) {
-      var a = Albums.albums[k];
-      if (a.name == name) {
-        i = tmp;
-        break;
-      }
-      tmp++;
-    }
-    if (i != -1) {
-      return Albums.albums[i];
-    }
-    return undefined;
+    return Albums.albums[name];
   },
   // displays gallery in linear representation
   // on given element, and apply default styles for gallery

apps/gallery/lib/scanner.php

@@ -50,15 +50,14 @@ class OC_Gallery_Scanner {
       while (($filename = readdir($dh)) !== false) {
         $filepath = ($path[strlen($path)-1]=='/'?$path:$path.'/').$filename;
         if (substr($filename, 0, 1) == '.') continue;
-        if (OC_Filesystem::is_dir($filepath)) {
-          self::scanDir($filepath, $albums);
-        } elseif (self::isPhoto($path.'/'.$filename)) {
+        if (self::isPhoto($path.'/'.$filename)) {
           $current_album['images'][] = $filepath;
         }
       }
     }
     $current_album['imagesCount'] = count($current_album['images']);
-    $albums[] = $current_album;
+    $albums['imagesCount'] = $current_album['imagesCount'];
+    $albums['albumName'] = $current_album['name'];
 
     $result = OC_Gallery_Album::find(OC_User::getUser(), $current_album['name']);
     if ($result->numRows() == 0 && count($current_album['images'])) {
@@ -92,5 +91,23 @@ class OC_Gallery_Scanner {
       return 1;
     return 0;
   }
+
+  public static function find_paths($path) {
+    $ret = array();
+    $dirres;
+    $addpath = FALSE;
+    if (($dirres = OC_Filesystem::opendir($path)) == FALSE) return $ret;
+
+    while (($file = readdir($dirres)) != FALSE) {
+      if ($file[0] == '.') continue;
+      if (OC_Filesystem::is_dir($path.$file))
+        $ret = array_merge($ret, self::find_paths($path.$file.'/'));
+      if (self::isPhoto($path.$file)) $addpath = TRUE;
+    }
+
+    if ($addpath) $ret[] = $path;
+
+    return $ret;
+  }
 }
 ?>