7 files changed, 37 insertions, 9 deletions

diff --git a/core/array.cpp b/core/array.cpp
index 23792f90fc..683a43e3d0 100644
--- a/core/array.cpp
+++ b/core/array.cpp
@@ -276,16 +276,26 @@ void Array::push_front(const Variant& p_value) {
 	_p->array.insert(0,p_value);
 }
 
-void Array::pop_back(){
+Variant Array::pop_back(){
 
-	if (!_p->array.empty())
-		_p->array.resize( _p->array.size() -1 );
+	if (!_p->array.empty()) {
+		int n = _p->array.size() - 1;
+		Variant ret = _p->array.get(n);
+		_p->array.resize(n);
+		return ret;
+	}
+	return Variant();
 
 }
-void Array::pop_front(){
 
-	if (!_p->array.empty())
+Variant Array::pop_front(){
+
+	if (!_p->array.empty()) {
+		Variant ret = _p->array.get(0);
 		_p->array.remove(0);
+		return ret;
+	}
+	return Variant();
 
 }
 
diff --git a/core/array.h b/core/array.h
index dfc902525c..eb79b0cf33 100644
--- a/core/array.h
+++ b/core/array.h
@@ -80,8 +80,8 @@ public:
 	void erase(const Variant& p_value);
 
 	void push_front(const Variant& p_value);
-	void pop_back();
-	void pop_front();
+	Variant pop_back();
+	Variant pop_front();
 
 	Array(const Array& p_from);
 	Array(bool p_shared=false);
diff --git a/core/object.cpp b/core/object.cpp
index 8cd4e07097..9a1e9be8d5 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -1215,6 +1215,15 @@ void Object::emit_signal(const StringName& p_name,const Variant** p_args,int p_a
 
 	Signal *s = signal_map.getptr(p_name);
 	if (!s) {
+#ifdef DEBUG_ENABLED
+		bool signal_is_valid = ObjectTypeDB::has_signal(get_type_name(),p_name);
+		//check in script
+		if (!signal_is_valid && !script.is_null() && !Ref<Script>(script)->has_script_signal(p_name)) {
+			ERR_EXPLAIN("Can't emit non-existing signal " + String("\"")+p_name+"\".");
+			ERR_FAIL();
+		}
+#endif
+		//not connected? just return
 		return;
 	}
 
diff --git a/core/os/os.h b/core/os/os.h
index 8e9293b3c8..c2b46a5420 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -372,6 +372,7 @@ public:
 	virtual void set_screen_orientation(ScreenOrientation p_orientation);
 	ScreenOrientation get_screen_orientation() const;
 
+	virtual void enable_for_stealing_focus(ProcessID pid) {}
 	virtual void move_window_to_foreground() {}
 
 	virtual void debug_break();
diff --git a/core/script_debugger_remote.cpp b/core/script_debugger_remote.cpp
index 1ac0907967..6d685d3c43 100644
--- a/core/script_debugger_remote.cpp
+++ b/core/script_debugger_remote.cpp
@@ -134,6 +134,8 @@ void ScriptDebuggerRemote::debug(ScriptLanguage *p_script,bool p_can_continue) {
 		ERR_FAIL();
 	}
 
+	OS::get_singleton()->enable_for_stealing_focus(Globals::get_singleton()->get("editor_pid"));
+
 	packet_peer_stream->put_var("debug_enter");
 	packet_peer_stream->put_var(2);
 	packet_peer_stream->put_var(p_can_continue);
@@ -273,6 +275,7 @@ void ScriptDebuggerRemote::debug(ScriptLanguage *p_script,bool p_can_continue) {
 
 				set_depth(-1);
 				set_lines_left(-1);
+				OS::get_singleton()->move_window_to_foreground();
 				break;
 			} else if (command=="break") {
 				ERR_PRINT("Got break when already broke!");
diff --git a/core/ustring.cpp b/core/ustring.cpp
index f7dcba6b14..2e907381f7 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -3073,6 +3073,11 @@ String String::simplify_path() const {
 	}
 
 	s =s.replace("\\","/");
+	while(true){ // in case of using 2 or more slash
+		String compare = s.replace("//","/");
+		if (s==compare) break;
+		else s=compare;
+	}
 	Vector<String> dirs = s.split("/",false);
 
 	for(int i=0;i<dirs.size();i++) {
diff --git a/core/variant_call.cpp b/core/variant_call.cpp
index 5f052bce8e..a84eed4d88 100644
--- a/core/variant_call.cpp
+++ b/core/variant_call.cpp
@@ -465,8 +465,8 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM0R(Array,hash);
 	VCALL_LOCALMEM1(Array,push_back);
 	VCALL_LOCALMEM1(Array,push_front);
-	VCALL_LOCALMEM0(Array,pop_back);
-	VCALL_LOCALMEM0(Array,pop_front);
+	VCALL_LOCALMEM0R(Array,pop_back);
+	VCALL_LOCALMEM0R(Array,pop_front);
 	VCALL_LOCALMEM1(Array,append);
 	VCALL_LOCALMEM1(Array,resize);
 	VCALL_LOCALMEM2(Array,insert);