New profile cover actions by buttons done.

Two new types of Observers: image loaded and async file dialog.

Telegram/SourceFiles/application.cpp

@@ -27,10 +27,12 @@ Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
 #include "mainwidget.h"
 #include "lang.h"
 #include "boxes/confirmbox.h"
+#include "ui/filedialog.h"
 #include "langloaderplain.h"
 #include "localstorage.h"
 #include "autoupdater.h"
 #include "core/observer.h"
+#include "observer_peer.h"
 
 namespace {
 	void mtpStateChanged(int32 dc, int32 state) {
@@ -817,6 +819,7 @@ void AppClass::doMtpUnpause() {
 void AppClass::selfPhotoCleared(const MTPUserProfilePhoto &result) {
 	if (!App::self()) return;
 	App::self()->setPhoto(result);
+	Notify::peerUpdatedSendDelayed();
 	emit peerPhotoDone(App::self()->id);
 }
 
@@ -906,6 +909,14 @@ void AppClass::call_handleUnreadCounterUpdate() {
 	}
 }
 
+void AppClass::call_handleFileDialogQueue() {
+	while (true) {
+		if (!FileDialog::processQuery()) {
+			return;
+		}
+	}
+}
+
 void AppClass::killDownloadSessions() {
 	uint64 ms = getms(), left = MTPAckSendWaiting + MTPKillFileSessionTimeout;
 	for (QMap<int32, uint64>::iterator i = killDownloadSessionTimes.begin(); i != killDownloadSessionTimes.end(); ) {