1 files changed, 98 insertions, 0 deletions
diff --git a/indra/newview/llselectmgr.cpp b/indra/newview/llselectmgr.cpp
index da891d1c51..50bc0b4a98 100644
--- a/indra/newview/llselectmgr.cpp
+++ b/indra/newview/llselectmgr.cpp
@@ -65,6 +65,7 @@
 #include "llinventorymodel.h"
 #include "llmenugl.h"
 #include "llmutelist.h"
+#include "llnotificationsutil.h"
 #include "llsidepaneltaskinfo.h"
 #include "llslurl.h"
 #include "llstatusbar.h"
@@ -562,6 +563,103 @@ BOOL LLSelectMgr::removeObjectFromSelections(const LLUUID &id)
 	return object_found;
 }
 
+bool LLSelectMgr::linkObjects()
+{
+	if (!LLSelectMgr::getInstance()->selectGetAllRootsValid())
+	{
+		LLNotificationsUtil::add("UnableToLinkWhileDownloading");
+		return true;
+	}
+
+	S32 object_count = LLSelectMgr::getInstance()->getSelection()->getObjectCount();
+	if (object_count > MAX_CHILDREN_PER_TASK + 1)
+	{
+		LLSD args;
+		args["COUNT"] = llformat("%d", object_count);
+		int max = MAX_CHILDREN_PER_TASK+1;
+		args["MAX"] = llformat("%d", max);
+		LLNotificationsUtil::add("UnableToLinkObjects", args);
+		return true;
+	}
+
+	if (LLSelectMgr::getInstance()->getSelection()->getRootObjectCount() < 2)
+	{
+		LLNotificationsUtil::add("CannotLinkIncompleteSet");
+		return true;
+	}
+
+	if (!LLSelectMgr::getInstance()->selectGetRootsModify())
+	{
+		LLNotificationsUtil::add("CannotLinkModify");
+		return true;
+	}
+
+	LLUUID owner_id;
+	std::string owner_name;
+	if (!LLSelectMgr::getInstance()->selectGetOwner(owner_id, owner_name))
+	{
+		// we don't actually care if you're the owner, but novices are
+		// the most likely to be stumped by this one, so offer the
+		// easiest and most likely solution.
+		LLNotificationsUtil::add("CannotLinkDifferentOwners");
+		return true;
+	}
+
+	LLSelectMgr::getInstance()->sendLink();
+
+	return true;
+}
+
+bool LLSelectMgr::unlinkObjects()
+{
+	LLSelectMgr::getInstance()->sendDelink();
+	return true;
+}
+
+// in order to link, all objects must have the same owner, and the
+// agent must have the ability to modify all of the objects. However,
+// we're not answering that question with this method. The question
+// we're answering is: does the user have a reasonable expectation
+// that a link operation should work? If so, return true, false
+// otherwise. this allows the handle_link method to more finely check
+// the selection and give an error message when the uer has a
+// reasonable expectation for the link to work, but it will fail.
+bool LLSelectMgr::enableLinkObjects()
+{
+	bool new_value = false;
+	// check if there are at least 2 objects selected, and that the
+	// user can modify at least one of the selected objects.
+
+	// in component mode, can't link
+	if (!gSavedSettings.getBOOL("EditLinkedParts"))
+	{
+		if(LLSelectMgr::getInstance()->selectGetAllRootsValid() && LLSelectMgr::getInstance()->getSelection()->getRootObjectCount() >= 2)
+		{
+			struct f : public LLSelectedObjectFunctor
+			{
+				virtual bool apply(LLViewerObject* object)
+				{
+					return object->permModify();
+				}
+			} func;
+			const bool firstonly = true;
+			new_value = LLSelectMgr::getInstance()->getSelection()->applyToRootObjects(&func, firstonly);
+		}
+	}
+	return new_value;
+}
+
+bool LLSelectMgr::enableUnlinkObjects()
+{
+	LLViewerObject* first_editable_object = LLSelectMgr::getInstance()->getSelection()->getFirstEditableObject();
+
+	bool new_value = LLSelectMgr::getInstance()->selectGetAllRootsValid() &&
+		first_editable_object &&
+		!first_editable_object->isAttachment();
+
+	return new_value;
+}
+
 void LLSelectMgr::deselectObjectAndFamily(LLViewerObject* object, BOOL send_to_sim, BOOL include_entire_object)
 {
 	// bail if nothing selected or if object wasn't selected in the first place