Fixes #17

PROTOCOL.md

@@ -11,6 +11,9 @@ The protocol in general is based on the OBS Remote protocol created by Bill Hami
   - [Event Types](#event-types)
     - ["SwitchScenes"](#switchscenes)
     - ["ScenesChanged"](#sceneschanged)
+    - ["SourceOrderChanged"](#sourceorderchanged)
+    - ["SceneItemAdded"](#sceneitemadded)
+    - ["SceneItemRemoved"](#sceneitemremoved)
     - ["SceneCollectionChanged"](#scenecollectionchanged)
     - ["SceneCollectionListChanged"](#scenecollectionlistchanged)
     - ["SwitchTransition"](#switchtransition)
@@ -80,6 +83,26 @@ The scene list has been modified (Scenes have been added, removed, or renamed).
 
 ---
 
+#### "SourceOrderChanged"
+Scene items have been reordered.
+- **"scene-name"** (string) : name of the scene where items have been reordered
+
+---
+
+#### "SceneItemAdded"
+An item has been added to the current scene.
+- **"scene-name"** (string) :  name of the scene
+- **"item-name"** (string) : name of the item added to **scene-name**
+
+---
+
+#### "SceneItemRemoved"
+An item has been removed from the current scene.
+- **"scene-name"** (string) :  name of the scene
+- **"item-name"** (string) : name of the item removed from **scene-name**
+
+---
+
 #### "SceneCollectionChanged"
 Triggered when switching to another scene collection or when renaming the current scene collection.
 

WSEvents.cpp

@@ -21,6 +21,7 @@ with this program. If not, see <https://www.gnu.org/licenses/>
 #include <QTimer>
 #include "Utils.h"
 #include "WSEvents.h"
+#include "obs-websocket.h"
 
 bool transition_is_cut(obs_source_t *transition)
 {
@@ -49,12 +50,17 @@ WSEvents::WSEvents(WSServer *srv)
 	statusTimer->start(2000); // equal to frontend's constant BITRATE_UPDATE_SECONDS
 
 	transition_handler = nullptr;
+	scene_handler = nullptr;
 
 	WSEvents* instance = this;
 	QTimer::singleShot(1000, [instance]() {
 		obs_source_t* transition = obs_frontend_get_current_transition();
 		instance->connectTransitionSignals(transition);
 		obs_source_release(transition);
+
+		obs_source_t* scene = obs_frontend_get_current_scene();
+		instance->connectSceneSignals(scene);
+		obs_source_release(scene);
 	});
 
 	_stream_starttime = 0;
@@ -159,11 +165,16 @@ void WSEvents::broadcastUpdate(const char *updateType, obs_data_t *additionalFie
 	obs_data_release(update);
 }
 
-void WSEvents::connectTransitionSignals(obs_source_t* current_transition)
+void WSEvents::connectTransitionSignals(obs_source_t* transition)
 {
-	if (!transition_is_cut(current_transition))
+	if (transition_handler)
 	{
-		transition_handler = obs_source_get_signal_handler(current_transition);
+		signal_handler_disconnect(transition_handler, "transition_start", OnTransitionBegin, this);
+	}
+
+	if (!transition_is_cut(transition))
+	{
+		transition_handler = obs_source_get_signal_handler(transition);
 		signal_handler_connect(transition_handler, "transition_start", OnTransitionBegin, this);	}
 	else
 	{
@@ -171,12 +182,31 @@ void WSEvents::connectTransitionSignals(obs_source_t* current_transition)
 	}
 }
 
+void WSEvents::connectSceneSignals(obs_source_t* scene)
+{
+	// TODO : connect to all scenes, not just the current one.
+
+	if (scene_handler)
+	{
+		signal_handler_disconnect(scene_handler, "reorder", OnSceneReordered, this);
+		signal_handler_disconnect(scene_handler, "item_add", OnSceneItemAdd, this);
+		signal_handler_disconnect(scene_handler, "item_remove", OnSceneItemDelete, this);
+	}
+
+	scene_handler = obs_source_get_signal_handler(scene);
+	signal_handler_connect(scene_handler, "reorder", OnSceneReordered, this);
+	signal_handler_connect(scene_handler, "item_add", OnSceneItemAdd, this);
+	signal_handler_connect(scene_handler, "item_remove", OnSceneItemDelete, this);
+}
+
 void WSEvents::OnSceneChange()
 {
 	// Implements an existing update type from bilhamil's OBS Remote
 	obs_data_t *data = obs_data_create();
 
 	obs_source_t* current_scene = obs_frontend_get_current_scene();
+	connectSceneSignals(current_scene);
+
 	obs_data_set_string(data, "scene-name", obs_source_get_name(current_scene));
 	
 	broadcastUpdate("SwitchScenes", data);
@@ -202,11 +232,6 @@ void WSEvents::OnSceneCollectionListChange()
 
 void WSEvents::OnTransitionChange()
 {
-	if (transition_handler)
-	{
-		signal_handler_disconnect(transition_handler, "transition_start", OnTransitionBegin, this);
-	}
-
 	obs_source_t* current_transition = obs_frontend_get_current_transition();
 	connectTransitionSignals(current_transition);
 
@@ -381,4 +406,63 @@ void WSEvents::OnTransitionBegin(void* param, calldata_t* data)
 	instance->broadcastUpdate("TransitionBegin");
 
 	blog(LOG_INFO, "transition begin");
+}
+
+void WSEvents::OnSceneReordered(void *param, calldata_t *data)
+{
+	WSEvents* instance = static_cast<WSEvents*>(param);
+
+	obs_scene_t* scene = nullptr;
+	calldata_get_ptr(data, "scene", &scene);
+
+	obs_data_t *fields = obs_data_create();
+	obs_data_set_string(fields, "scene-name", obs_source_get_name(obs_scene_get_source(scene)));
+	
+	instance->broadcastUpdate("SourceOrderChanged", fields);
+
+	obs_data_release(fields);
+}
+
+void WSEvents::OnSceneItemAdd(void *param, calldata_t *data)
+{
+	WSEvents* instance = static_cast<WSEvents*>(param);
+
+	obs_scene_t* scene = nullptr;
+	calldata_get_ptr(data, "scene", &scene);
+
+	obs_sceneitem_t* scene_item = nullptr;
+	calldata_get_ptr(data, "item", &scene_item);
+
+	const char* scene_name = obs_source_get_name(obs_scene_get_source(scene));
+	const char* sceneitem_name = obs_source_get_name(obs_sceneitem_get_source(scene_item));
+
+	obs_data_t* fields = obs_data_create();
+	obs_data_set_string(fields, "scene-name", scene_name);
+	obs_data_set_string(fields, "item-name", sceneitem_name);
+
+	instance->broadcastUpdate("SceneItemAdded", fields);
+
+	obs_data_release(fields);
+}
+
+void WSEvents::OnSceneItemDelete(void *param, calldata_t *data)
+{
+	WSEvents* instance = static_cast<WSEvents*>(param);
+
+	obs_scene_t* scene = nullptr;
+	calldata_get_ptr(data, "scene", &scene);
+
+	obs_sceneitem_t* scene_item = nullptr;
+	calldata_get_ptr(data, "item", &scene_item);
+
+	const char* scene_name = obs_source_get_name(obs_scene_get_source(scene));
+	const char* sceneitem_name = obs_source_get_name(obs_sceneitem_get_source(scene_item));
+
+	obs_data_t* fields = obs_data_create();
+	obs_data_set_string(fields, "scene-name", scene_name);
+	obs_data_set_string(fields, "item-name", sceneitem_name);
+
+	instance->broadcastUpdate("SceneItemRemoved", fields);
+
+	obs_data_release(fields);
 }

WSEvents.h

@@ -31,7 +31,8 @@ class WSEvents : public QObject
 		explicit WSEvents(WSServer *srv);
 		~WSEvents();
 		static void FrontendEventHandler(enum obs_frontend_event event, void *private_data);
-		void connectTransitionSignals(obs_source_t* current_transition);
+		void connectTransitionSignals(obs_source_t* transition);
+		void connectSceneSignals(obs_source_t* scene);
 
 	private Q_SLOTS:
 		void StreamStatus();
@@ -40,7 +41,8 @@ class WSEvents : public QObject
 	private:
 		WSServer *_srv;
 		signal_handler_t *transition_handler;
-		
+		signal_handler_t *scene_handler;
+
 		uint64_t _stream_starttime;
 		uint64_t _rec_starttime;
 		uint64_t _lastBytesSent;
@@ -72,6 +74,10 @@ class WSEvents : public QObject
 		void OnExit();
 
 		static void OnTransitionBegin(void *param, calldata_t *data);
+
+		static void OnSceneReordered(void *param, calldata_t *data);
+		static void OnSceneItemAdd(void *param, calldata_t *data);
+		static void OnSceneItemDelete(void *param, calldata_t *data);
 };
 
 #endif // WSEVENTS_H