browser-plugin: add magicWrapper property

Allow browser to provide an object with callbacks / properties for the
plugin to call when status changes (title, clipboard controls, etc.)

1 files changed, 37 insertions, 2 deletions

diff --git a/browser-plugin/scriptable.cpp b/browser-plugin/scriptable.cpp
index 2669cac..0be9736 100644
--- a/browser-plugin/scriptable.cpp
+++ b/browser-plugin/scriptable.cpp
@@ -193,9 +193,11 @@ AllocateScriptablePluginObject (NPP npp, NPClass *aClass)
 }
 
 ScriptablePluginObject::ScriptablePluginObject (NPP npp) :
-                        ScriptablePluginObjectBase (npp)
+                        ScriptablePluginObjectBase (npp),
+                        mMagicWrapper(0)
 {
 	mTitleID = NPN_GetStringIdentifier ("title");
+	mMagicWrapperID = NPN_GetStringIdentifier ("magicWrapper");
 
 	mZoomInID = NPN_GetStringIdentifier ("zoomIn");
 	mZoomOutID = NPN_GetStringIdentifier ("zoomOut");
@@ -226,7 +228,8 @@ bool
 ScriptablePluginObject::HasProperty (NPIdentifier name)
 {
 	NPIdentifier properties[] = {
-		mTitleID
+		mTitleID,
+		mMagicWrapperID
 	};
 
 	for (guint i = 0; i < G_N_ELEMENTS(properties); i++) {
@@ -259,6 +262,38 @@ ScriptablePluginObject::GetProperty (NPIdentifier name, NPVariant *result)
 }
 
 bool
+ScriptablePluginObject::SetProperty (NPIdentifier name, const NPVariant *value)
+{
+	Plugin *plugin = reinterpret_cast<Plugin*> (mNpp->pdata);
+
+	if (name == mMagicWrapperID) {
+		NPObject *newWrapper = NULL;
+
+		if (NPVARIANT_IS_OBJECT (*value)) {
+			newWrapper = NPVARIANT_TO_OBJECT (*value);
+		} else if (NPVARIANT_IS_VOID (*value) ||
+			   NPVARIANT_IS_NULL (*value)) {
+			// ok, newWrapper=NULL
+		} else {
+			NPN_SetException (this, "Invalid type for magicWrapper, expected object or null");
+			return false;
+		}
+
+		if (newWrapper) {
+			NPN_RetainObject (newWrapper);
+		}
+		if (mMagicWrapper) {
+			NPN_ReleaseObject (mMagicWrapper);
+		}
+		mMagicWrapper = newWrapper;
+
+		return true;
+	}
+
+	return false;
+}
+
+bool
 ScriptablePluginObject::Invoke (NPIdentifier name, const NPVariant *args,
                                 uint32_t argCount, NPVariant *result)
 {