Trigger events before and after a file action is executed

In the same way that other elements can know when a FileAction is
registered or a default action is set this commit makes possible to be
notified before and after a FileAction is executed.

This is achieved by wrapping the registered action handler in a custom
function that notifies the listeners before and after executing the
handler itself. Due to this approach only FileActions registered through
"registerAction" trigger the events, although that is not a problem as
this is how the actions should be added to the FileActions anyway.

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/apps/files/js/fileactions.js b/apps/files/js/fileactions.js
index 6c031ab06d5..1b94ee15a61 100644
--- a/apps/files/js/fileactions.js
+++ b/apps/files/js/fileactions.js
@@ -142,7 +142,22 @@
 			var mime = action.mime;
 			var name = action.name;
 			var actionSpec = {
-				action: action.actionHandler,
+				action: function(fileName, context) {
+					// Actions registered in one FileAction may be executed on a
+					// different one (for example, due to the "merge" function),
+					// so the listeners have to be updated on the FileActions
+					// from the context instead of on the one in which it was
+					// originally registered.
+					if (context && context.fileActions) {
+						context.fileActions._notifyUpdateListeners('beforeTriggerAction', {action: actionSpec, fileName: fileName, context: context});
+					}
+
+					action.actionHandler(fileName, context);
+
+					if (context && context.fileActions) {
+						context.fileActions._notifyUpdateListeners('afterTriggerAction', {action: actionSpec, fileName: fileName, context: context});
+					}
+				},
 				name: name,
 				displayName: action.displayName,
 				mime: mime,