Files, trashbin, public apps use ajax/JSON for the file list

Files app:

- removed file list template, now rendering list from JSON response
- FileList.addFile/addDir is now FileList.add() and takes a JS map with all required
  arguments instead of having a long number of function arguments
- added unit tests for many FileList operations
- fixed newfile.php, newfolder.php and rename.php to return the file's
  full JSON on success
- removed obsolete/unused undo code
- removed download_url / loading options, now using
  Files.getDownloadUrl() for that
- server side now uses Helper::getFileInfo() to prepare file JSON response
- previews are now client-side only

Breadcrumbs are now JS only:

- Added BreadCrumb class to handle breadcrumb rendering and events
- Added unit test for BreadCrumb class
- Moved all relevant JS functions to the BreadCrumb class

Public page now uses ajax to load the file list:

- Added Helper class in sharing app to make it easier to authenticate
  and retrieve the file's real path
- Added ajax/list.php to retrieve the file list
- Fixed FileActions and FileList to work with the ajax list

Core:

- Fixed file picker dialog to use the same list format as files app

3 files changed, 6 insertions, 93 deletions

diff --git a/apps/files/templates/index.php b/apps/files/templates/index.php
index 34acd9c4f51..95edd625cb3 100644
--- a/apps/files/templates/index.php
+++ b/apps/files/templates/index.php
@@ -1,6 +1,5 @@
 <div id="controls">
-	<?php print_unescaped($_['breadcrumb']); ?>
-		<div class="actions creatable <?php if (!$_['isCreatable']):?>hidden<?php endif; ?>">
+		<div class="actions creatable hidden">
 			<?php if(!isset($_['dirToken'])):?>
 			<div id="new" class="button">
 				<a><?php p($l->t('New'));?></a>
@@ -48,20 +47,20 @@
 			</div>
 		</div>
 		<div id="file_action_panel"></div>
-		<div class="notCreatable notPublic <?php if ($_['isCreatable'] or $_['isPublic'] ):?>hidden<?php endif; ?>">
+		<div class="notCreatable notPublic hidden">
 			<?php p($l->t('You don’t have permission to upload or create files here'))?>
 		</div>
 	<input type="hidden" name="permissions" value="<?php p($_['permissions']); ?>" id="permissions">
 </div>
 
-<div id="emptycontent" <?php if (!$_['emptyContent']):?>class="hidden"<?php endif; ?>><?php p($l->t('Nothing in here. Upload something!'))?></div>
+<div id="emptycontent" class="hidden"><?php p($l->t('Nothing in here. Upload something!'))?></div>
 
 <input type="hidden" id="disableSharing" data-status="<?php p($_['disableSharing']); ?>" />
 
 <table id="filestable" data-allow-public-upload="<?php p($_['publicUploadEnabled'])?>" data-preview-x="36" data-preview-y="36">
 	<thead>
 		<tr>
-			<th <?php if (!$_['fileHeader']):?>class="hidden"<?php endif; ?> id='headerName'>
+			<th class="hidden" id='headerName'>
 				<div id="headerName-container">
 					<input type="checkbox" id="select_all" />
 					<label for="select_all"></label>
@@ -77,8 +76,8 @@
 					</span>
 				</div>
 			</th>
-			<th <?php if (!$_['fileHeader']):?>class="hidden"<?php endif; ?> id="headerSize"><?php p($l->t('Size')); ?></th>
-			<th <?php if (!$_['fileHeader']):?>class="hidden"<?php endif; ?> id="headerDate">
+			<th class="hidden" id="headerSize"><?php p($l->t('Size')); ?></th>
+			<th class="hidden" id="headerDate">
 				<span id="modified"><?php p($l->t( 'Modified' )); ?></span>
 				<?php if ($_['permissions'] & OCP\PERMISSION_DELETE): ?>
 					<span class="selectedActions"><a href="" class="delete-selected">
@@ -91,7 +90,6 @@
 		</tr>
 	</thead>
 	<tbody id="fileList">
-		<?php print_unescaped($_['fileList']); ?>
 	</tbody>
 </table>
 <div id="editor"></div><!-- FIXME Do not use this div in your app! It is deprecated and will be removed in the future! -->
@@ -111,7 +109,6 @@
 
 <!-- config hints for javascript -->
 <input type="hidden" name="filesApp" id="filesApp" value="1" />
-<input type="hidden" name="ajaxLoad" id="ajaxLoad" value="<?php p($_['ajaxLoad']); ?>" />
 <input type="hidden" name="allowZipDownload" id="allowZipDownload" value="<?php p($_['allowZipDownload']); ?>" />
 <input type="hidden" name="usedSpacePercent" id="usedSpacePercent" value="<?php p($_['usedSpacePercent']); ?>" />
 <?php if (!$_['isPublic']) :?>
diff --git a/apps/files/templates/part.breadcrumb.php b/apps/files/templates/part.breadcrumb.php
deleted file mode 100644
index 69b4cbca10d..00000000000
--- a/apps/files/templates/part.breadcrumb.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<div class="crumb svg <?php if(!count($_["breadcrumb"])) p('last');?>" data-dir=''>
-	<a href="<?php print_unescaped($_['baseURL']); ?>">
-		<?php if(isset($_['rootBreadCrumb'])):
-			echo $_['rootBreadCrumb'];
-		else:?>
-			<img src="<?php print_unescaped(OCP\image_path('core', 'places/home.svg'));?>" class="svg" />
-		<?php endif;?>
-	</a>
-</div>
-<?php for($i=0; $i<count($_["breadcrumb"]); $i++):
-	$crumb = $_["breadcrumb"][$i];
-	$dir = \OCP\Util::encodePath($crumb["dir"]); ?>
-	<div class="crumb <?php if($i == count($_["breadcrumb"])-1) p('last');?> svg"
-		 data-dir='<?php p($dir);?>'>
-	<a href="<?php p($_['baseURL'].$dir); ?>"><?php p($crumb["name"]); ?></a>
-	</div>
-<?php endfor;
diff --git a/apps/files/templates/part.list.php b/apps/files/templates/part.list.php
deleted file mode 100644
index 8a7a1e370eb..00000000000
--- a/apps/files/templates/part.list.php
+++ /dev/null
@@ -1,67 +0,0 @@
-<?php $totalfiles = 0;
-$totaldirs = 0;
-$totalsize = 0; ?>
-<?php foreach($_['files'] as $file):
-	// the bigger the file, the darker the shade of grey; megabytes*2
-	$simple_size_color = intval(160-$file['size']/(1024*1024)*2);
-	if($simple_size_color<0) $simple_size_color = 0;
-	$relative_modified_date = OCP\relative_modified_date($file['mtime']);
-	// the older the file, the brighter the shade of grey; days*14
-	$relative_date_color = round((time()-$file['mtime'])/60/60/24*14);
-	if($relative_date_color>160) $relative_date_color = 160;
-	$name = \OCP\Util::encodePath($file['name']);
-	$directory = \OCP\Util::encodePath($file['directory']); ?>
-	<tr data-id="<?php p($file['fileid']); ?>"
-		data-file="<?php p($name);?>"
-		data-type="<?php ($file['type'] == 'dir')?p('dir'):p('file')?>"
-		data-mime="<?php p($file['mimetype'])?>"
-		data-size="<?php p($file['size']);?>"
-		data-etag="<?php p($file['etag']);?>"
-		data-permissions="<?php p($file['permissions']); ?>"
-
-		<?php if(isset($file['displayname_owner'])): ?>
-			data-share-owner="<?php p($file['displayname_owner']) ?>"
-		<?php endif; ?>
-		>
-
-		<?php if(isset($file['isPreviewAvailable']) and $file['isPreviewAvailable']): ?>
-		<td class="filename svg preview-icon"
-		<?php else: ?>
-		<td class="filename svg"
-		<?php endif; ?>
-		    style="background-image:url(<?php print_unescaped($file['icon']); ?>)"
-			>
-		<?php if(!isset($_['readonly']) || !$_['readonly']): ?>
-			<input id="select-<?php p($file['fileid']); ?>" type="checkbox" />
-			<label for="select-<?php p($file['fileid']); ?>"></label>
-		<?php endif; ?>
-		<?php if($file['type'] == 'dir'): ?>
-			<a class="name" href="<?php p(rtrim($_['baseURL'],'/').'/'.trim($directory,'/').'/'.$name); ?>" title="">
-				<span class="nametext">
-					<?php print_unescaped(htmlspecialchars($file['name']));?>
-				</span>
-				<span class="uploadtext" currentUploads="0">
-				</span>
-			</a>
-		<?php else: ?>
-			<a class="name" href="<?php p(rtrim($_['downloadURL'],'/').'/'.trim($directory,'/').'/'.$name); ?>">
-				<label class="filetext" title="" for="select-<?php p($file['fileid']); ?>"></label>
-				<span class="nametext"><?php print_unescaped(htmlspecialchars($file['basename']));?><span class='extension'><?php p($file['extension']);?></span></span>
-			</a>
-		<?php endif; ?>
-		</td>
-		<td class="filesize"
-			style="color:rgb(<?php p($simple_size_color.','.$simple_size_color.','.$simple_size_color) ?>)">
-				<?php print_unescaped(OCP\human_file_size($file['size'])); ?>
-		</td>
-		<td class="date">
-			<span class="modified"
-				  title="<?php p($file['date']); ?>"
-				  style="color:rgb(<?php p($relative_date_color.','
-												.$relative_date_color.','
-												.$relative_date_color) ?>)">
-				<?php p($relative_modified_date); ?>
-			</span>
-		</td>
-	</tr>
-<?php endforeach;