1 files changed, 40 insertions, 0 deletions

diff --git a/linden/indra/newview/llwlparammanager.cpp b/linden/indra/newview/llwlparammanager.cpp
index b8a2bf0..081313c 100644
--- a/linden/indra/newview/llwlparammanager.cpp
+++ b/linden/indra/newview/llwlparammanager.cpp
@@ -63,6 +63,7 @@
 #include "curl/curl.h"
 
 LLWLParamManager * LLWLParamManager::sInstance = NULL;
+std::vector<LLWLPresetsObserver*> LLWLParamManager::sObservers;
 
 LLWLParamManager::LLWLParamManager() :
 
@@ -239,6 +240,8 @@ void LLWLParamManager::loadPreset(const std::string & name,bool propagate)
                 getParamSet(name, mCurParams);
                 propagateParameters();
         }
+
+        notifyObservers();
 }       
 
 void LLWLParamManager::savePreset(const std::string & name)
@@ -265,6 +268,7 @@ void LLWLParamManager::savePreset(const std::string & name)
         presetsXML.close();
 
         propagateParameters();
+        notifyObservers();
 }
 
 void LLWLParamManager::updateShaderUniforms(LLGLSLShader * shader)
@@ -539,6 +543,8 @@ bool LLWLParamManager::removeParamSet(const std::string& name, bool delete_from_
                 gDirUtilp->deleteFilesInDir(path_name, escaped_name + ".xml");
         }
 
+        notifyObservers();
+
         return true;
 }
 
@@ -567,3 +573,37 @@ LLWLParamManager * LLWLParamManager::instance()
 
         return sInstance;
 }
+
+// static
+void LLWLParamManager::addObserver(LLWLPresetsObserver* observer)
+{
+        sObservers.push_back(observer);
+}
+
+// static
+void LLWLParamManager::removeObserver(LLWLPresetsObserver* observer)
+{
+        std::vector<LLWLPresetsObserver*>::iterator it;
+        it = std::find(sObservers.begin(), sObservers.end(), observer);
+        if (it != sObservers.end())
+        {
+                sObservers.erase(it);
+        }
+}
+
+// Call this method when it's time to update everyone on a new state.
+// Copy the list because an observer could respond by removing itself
+// from the list. Static
+void LLWLParamManager::notifyObservers()
+{
+        lldebugs << "LLWLPresetsObserver::notifyObservers" << llendl;
+
+        std::vector<LLWLPresetsObserver*> observers = sObservers;
+
+        std::vector<LLWLPresetsObserver*>::iterator it;
+        for (it = observers.begin(); it != observers.end(); ++it)
+        {
+                LLWLPresetsObserver* observer = *it;
+                observer->changed();
+        }
+}