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, 3 insertions, 104 deletions

diff --git a/apps/files_trashbin/templates/index.php b/apps/files_trashbin/templates/index.php
index f9264d4352c..615cf8bdd00 100644
--- a/apps/files_trashbin/templates/index.php
+++ b/apps/files_trashbin/templates/index.php
@@ -1,13 +1,11 @@
 <div id="controls">
-	<?php print_unescaped($_['breadcrumb']); ?>
-		<div id="file_action_panel"></div>
+	<div id="file_action_panel"></div>
 </div>
 <div id='notification'></div>
 
-<div id="emptycontent" <?php if (!(isset($_['files']) && count($_['files']) === 0 && $_['dirlisting'] === false && !$_['ajaxLoad'])):?>class="hidden"<?php endif; ?>><?php p($l->t('Nothing in here. Your trash bin is empty!'))?></div>
+<div id="emptycontent" class="hidden"><?php p($l->t('Nothing in here. Your trash bin is empty!'))?></div>
 
-<input type="hidden" name="ajaxLoad" id="ajaxLoad" value="<?php p($_['ajaxLoad']); ?>" />
-<input type="hidden" id="disableSharing" data-status="<?php p($_['disableSharing']); ?>"></input>
+<input type="hidden" id="permissions" value="0"></input>
 <input type="hidden" name="dir" value="<?php p($_['dir']) ?>" id="dir">
 
 <table id="filestable">
@@ -40,6 +38,5 @@
 		</tr>
 	</thead>
 	<tbody id="fileList">
-		<?php print_unescaped($_['fileList']); ?>
 	</tbody>
 </table>
diff --git a/apps/files_trashbin/templates/part.breadcrumb.php b/apps/files_trashbin/templates/part.breadcrumb.php
deleted file mode 100644
index fdf78c190d0..00000000000
--- a/apps/files_trashbin/templates/part.breadcrumb.php
+++ /dev/null
@@ -1,19 +0,0 @@
-<div class="crumb home">
-		<a href="<?php print_unescaped($_['home']); ?>">
-			<img src="<?php print_unescaped(OCP\image_path('core', 'places/home.svg'));?>" class="svg" />
-		</a>
-</div>
-<div class="crumb svg"
-	 data-dir='/'>
-	<a href="<?php p($_['baseURL']); ?>"><?php p($l->t("Deleted Files")); ?></a>
-</div>
-<?php if(count($_["breadcrumb"])):?>
-<?php endif;?>
-<?php for($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_trashbin/templates/part.list.php b/apps/files_trashbin/templates/part.list.php
deleted file mode 100644
index c32d9fd54da..00000000000
--- a/apps/files_trashbin/templates/part.list.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php foreach($_['files'] as $file):
-	$relative_deleted_date = OCP\relative_modified_date($file['timestamp']);
-	// the older the file, the brighter the shade of grey; days*14
-	$relative_date_color = round((time()-$file['date'])/60/60/24*14);
-	if($relative_date_color>200) $relative_date_color = 200;
-	$name = \OCP\Util::encodePath($file['name']);
-	$directory = \OCP\Util::encodePath($file['directory']); ?>
-	<tr data-filename="<?php p($file['name']);?>"
-		data-type="<?php ($file['type'] === 'dir')?p('dir'):p('file')?>"
-		data-mime="<?php p($file['mimetype'])?>"
-		data-permissions='<?php p($file['permissions']); ?>'
-		<?php if ( $_['dirlisting'] ): ?>
-		id="<?php p($file['directory'].'/'.$file['name']);?>"
-		data-file="<?php p($name);?>"
-		data-timestamp=''
-		data-dirlisting=1
-		<?php  else: ?>
-		id="<?php p($file['name'].'.d'.$file['timestamp']);?>"
-		data-file="<?php p($file['name'].'.d'.$file['timestamp']);?>"
-		data-timestamp='<?php p($file['timestamp']);?>'
-		data-dirlisting=0
-		<?php endif; ?>>
-		<?php if($file['isPreviewAvailable']): ?>
-		<td class="filename svg preview-icon"
-		<?php else: ?>
-		<td class="filename svg"
-		<?php endif; ?>
-		<?php if($file['type'] === 'dir'): ?>
-			style="background-image:url(<?php print_unescaped(OCP\mimetype_icon('dir')); ?>)"
-		<?php else: ?>
-				<?php if($file['isPreviewAvailable']): ?>
-				style="background-image:url(<?php print_unescaped(OCA\Files_Trashbin\Trashbin::preview_icon(!$_['dirlisting'] ? ($file['name'].'.d'.$file['timestamp']) : ($file['directory'].'/'.$file['name']))); ?>)"
-				<?php else: ?>
-				style="background-image:url(<?php print_unescaped(OCP\mimetype_icon($file['mimetype'])); ?>)"
-				<?php endif; ?>
-		<?php endif; ?>
-			>
-		<?php if(!isset($_['readonly']) || !$_['readonly']): ?>
-			<input id="select-<?php p($file['id']); ?>" type="checkbox" />
-			<label for="select-<?php p($file['id']); ?>"></label>
-		<?php endif; ?>
-		<?php if($file['type'] === 'dir'): ?>
-			<?php if( $_['dirlisting'] ): ?>
-				<a class="name dir" href="<?php p($_['baseURL'].'/'.$name); ?>" title="">
-			<?php else: ?>
-				<a class="name dir" href="<?php p($_['baseURL'].'/'.$name.'.d'.$file['timestamp']); ?>" title="">
-			<?php endif; ?>
-		<?php else: ?>
-			<?php if( $_['dirlisting'] ): ?>
-				<a class="name file" href="<?php p($_['downloadURL'].'/'.$name); ?>" title="">
-			<?php else: ?>
-				<a class="name file" href="<?php p($_['downloadURL'].'/'.$name.'.d'.$file['timestamp']);?>" title="">
-			<?php endif; ?>
-		<?php endif; ?>
-			<span class="nametext">
-				<?php if($file['type'] === 'dir'):?>
-					<?php print_unescaped(htmlspecialchars($file['name']));?>
-				<?php else:?>
-					<?php print_unescaped(htmlspecialchars($file['basename']));?><span
-						class='extension'><?php p($file['extension']);?></span>
-				<?php endif;?>
-			</span>
-			<?php if($file['type'] === 'dir'):?>
-				<span class="uploadtext" currentUploads="0">
-				</span>
-			<?php endif;?>
-			</a>
-		</td>
-		<td class="date">
-			<span class="modified"
-				  title="<?php p($file['date']); ?>"
-				  style="color:rgb(<?php p($relative_date_color.','
-												.$relative_date_color.','
-												.$relative_date_color) ?>)">
-				<?php p($relative_deleted_date); ?>
-			</span>
-		</td>
-	</tr>
-<?php endforeach;