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

1 files changed, 7 insertions, 0 deletions

diff --git a/core/css/styles.css b/core/css/styles.css
index 8a12057529d..f978eab7cac 100644
--- a/core/css/styles.css
+++ b/core/css/styles.css
@@ -283,6 +283,10 @@ input[type="submit"].enabled {
 	padding: 7px 10px
 }
 
+#controls .button.hidden {
+	display: none;
+}
+
 #content { position:relative; height:100%; width:100%; }
 #content .hascontrols {
 	position: relative;
@@ -922,6 +926,9 @@ div.crumb {
 	background: url('../img/breadcrumb.svg') no-repeat right center;
 	height: 44px;
 }
+div.crumb.hidden {
+	display: none;
+}
 div.crumb a,
 div.crumb span {
 	position: relative;