Refactor dialogue GUI to talk to the dialogue manager, not the other way around and not both ways.

- Fix memory leaks in DialogueWindow
- Fix Link objects being deleted from their own event handler

apps/openmw/mwbase/dialoguemanager.hpp

@@ -2,6 +2,8 @@
 #define GAME_MWBASE_DIALOGUEMANAGER_H
 
 #include <string>
+#include <vector>
+#include <list>
 
 #include <stdint.h>
 
@@ -42,24 +44,29 @@ namespace MWBase
 
             virtual bool isInChoice() const = 0;
 
-            virtual void startDialogue (const MWWorld::Ptr& actor) = 0;
+            typedef std::pair<std::string, std::string> Response; // title, text
+            virtual bool startDialogue (const MWWorld::Ptr& actor, Response& response) = 0;
 
             virtual void addTopic (const std::string& topic) = 0;
 
-            virtual void askQuestion (const std::string& question,int choice) = 0;
+            virtual void addChoice (const std::string& text,int choice) = 0;
+            virtual const std::vector<std::pair<std::string, int> >& getChoices() = 0;
+
+            virtual bool isGoodbye() = 0;
 
             virtual void goodbye() = 0;
 
             virtual void say(const MWWorld::Ptr &actor, const std::string &topic) = 0;
 
-            //calbacks for the GUI
-            virtual void keywordSelected (const std::string& keyword) = 0;
+            virtual Response keywordSelected (const std::string& keyword) = 0;
             virtual void goodbyeSelected() = 0;
-            virtual void questionAnswered (int answer) = 0;
+            virtual Response questionAnswered (int answer) = 0;
+
+            virtual std::list<std::string> getAvailableTopics() = 0;
 
-            virtual bool checkServiceRefused () = 0;
+            virtual bool checkServiceRefused (Response& response) = 0;
 
-            virtual void persuade (int type) = 0;
+            virtual Response persuade (int type) = 0;
             virtual int getTemporaryDispositionChange () const = 0;
 
             /// @note This change is temporary and gets discarded when dialogue ends.

apps/openmw/mwbase/windowmanager.hpp

@@ -140,7 +140,6 @@ namespace MWBase
             virtual bool isAllowed (MWGui::GuiWindow wnd) const = 0;
 
             /// \todo investigate, if we really need to expose every single lousy UI element to the outside world
-            virtual MWGui::DialogueWindow* getDialogueWindow() = 0;
             virtual MWGui::InventoryWindow* getInventoryWindow() = 0;
             virtual MWGui::CountDialog* getCountDialog() = 0;
             virtual MWGui::ConfirmationDialog* getConfirmationDialog() = 0;

apps/openmw/mwdialogue/dialoguemanagerimp.cpp

@@ -5,6 +5,7 @@
 #include <algorithm>
 #include <iterator>
 #include <list>
+#include <iostream>
 
 #include <components/esm/loaddial.hpp>
 #include <components/esm/loadinfo.hpp>
@@ -33,8 +34,6 @@
 #include "../mwworld/containerstore.hpp"
 #include "../mwworld/esmstore.hpp"
 
-#include "../mwgui/dialogue.hpp"
-
 #include "../mwscript/compilercontext.hpp"
 #include "../mwscript/interpretercontext.hpp"
 #include "../mwscript/extensions.hpp"
@@ -59,6 +58,7 @@ namespace MWDialogue
     {
         mChoice = -1;
         mIsInChoice = false;
+        mGoodbye = false;
         mCompilerContext.setExtensions (&extensions);
     }
 
@@ -99,17 +99,15 @@ namespace MWDialogue
             if (mActorKnownTopics.count( topicId ))
                 mKnownTopics.insert( topicId );
         }
-
-        updateTopics();
     }
 
-    void DialogueManager::startDialogue (const MWWorld::Ptr& actor)
+    bool DialogueManager::startDialogue (const MWWorld::Ptr& actor, Response& response)
     {
         updateGlobals();
 
         // Dialogue with dead actor (e.g. through script) should not be allowed.
         if (actor.getClass().getCreatureStats(actor).isDead())
-            return;
+            return false;
 
         mLastTopic = "";
         mPermanentDispositionChange = 0;
@@ -117,6 +115,8 @@ namespace MWDialogue
 
         mChoice = -1;
         mIsInChoice = false;
+        mGoodbye = false;
+        mChoices.clear();
 
         mActor = actor;
 
@@ -125,8 +125,6 @@ namespace MWDialogue
 
         mActorKnownTopics.clear();
 
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
-
         //greeting
         const MWWorld::Store<ESM::Dialogue> &dialogs =
             MWBase::Environment::get().getWorld()->getStore().get<ESM::Dialogue>();
@@ -140,10 +138,6 @@ namespace MWDialogue
                 // Search a response (we do not accept a fallback to "Info refusal" here)
                 if (const ESM::DialInfo *info = filter.search (*it, false))
                 {
-                    //initialise the GUI
-                    MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue);
-                    win->startDialogue(actor, actor.getClass().getName (actor));
-
                     creatureStats.talkedToPlayer();
 
                     if (!info->mSound.empty())
@@ -152,29 +146,23 @@ namespace MWDialogue
                     }
 
                     // first topics update so that parseText knows the keywords to highlight
-                    updateTopics();
+                    updateActorKnownTopics();
 
                     parseText (info->mResponse);
 
                     MWScript::InterpreterContext interpreterContext(&mActor.getRefData().getLocals(),mActor);
-                    win->addResponse (Interpreter::fixDefinesDialog(info->mResponse, interpreterContext), "", false);
+                    response = Response ("", Interpreter::fixDefinesDialog(info->mResponse, interpreterContext));
                     executeScript (info->mResultScript, mActor);
                     mLastTopic = it->mId;
 
                     // update topics again to accommodate changes resulting from executeScript
-                    updateTopics();
+                    updateActorKnownTopics();
 
-                    return;
+                    return true;
                 }
             }
         }
-
-        // No greetings found. The dialogue window should not be shown.
-        // If this is a companion, we must show the companion window directly (used by BM_bear_be_unique).
-        bool isCompanion = !mActor.getClass().getScript(mActor).empty()
-                && mActor.getRefData().getLocals().getIntVar(mActor.getClass().getScript(mActor), "companion");
-        if (isCompanion)
-            MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Companion, mActor);
+        return false;
     }
 
     bool DialogueManager::compile (const std::string& cmd, std::vector<Interpreter::Type_Code>& code, const MWWorld::Ptr& actor)
@@ -252,8 +240,9 @@ namespace MWDialogue
         }
     }
 
-    void DialogueManager::executeTopic (const std::string& topic)
+    DialogueManager::Response DialogueManager::executeTopic (const std::string& topic)
     {
+        DialogueManager::Response response;
         Filter filter (mActor, mChoice, mTalkedTo);
 
         const MWWorld::Store<ESM::Dialogue> &dialogues =
@@ -261,8 +250,6 @@ namespace MWDialogue
 
         const ESM::Dialogue& dialogue = *dialogues.find (topic);
 
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
-
         const ESM::DialInfo* info = filter.search(dialogue, true);
         if (info)
         {
@@ -287,7 +274,7 @@ namespace MWDialogue
                 title = topic;
 
             MWScript::InterpreterContext interpreterContext(&mActor.getRefData().getLocals(),mActor);
-            win->addResponse (Interpreter::fixDefinesDialog(info->mResponse, interpreterContext), title);
+            response = Response(title, Interpreter::fixDefinesDialog(info->mResponse, interpreterContext));
 
             if (dialogue.mType == ESM::Dialogue::Topic)
             {
@@ -308,11 +295,7 @@ namespace MWDialogue
 
             mLastTopic = topic;
         }
-        else
-        {
-            // no response found, print a fallback text
-            win->addResponse ("…", topic);
-        }
+        return response;
     }
 
     const ESM::Dialogue *DialogueManager::searchDialogue(const std::string& id)
@@ -325,11 +308,10 @@ namespace MWDialogue
         MWBase::Environment::get().getWorld()->updateDialogueGlobals();
     }
 
-    void DialogueManager::updateTopics()
+    void DialogueManager::updateActorKnownTopics()
     {
         updateGlobals();
 
-        std::list<std::string> keywordList;
         mActorKnownTopics.clear();
 
         const MWWorld::Store<ESM::Dialogue> &dialogs =
@@ -345,35 +327,42 @@ namespace MWDialogue
                 {
                     std::string lower = Misc::StringUtils::lowerCase(iter->mId);
                     mActorKnownTopics.insert (lower);
-
-                    //does the player know the topic?
-                    if (mKnownTopics.count(lower))
-                    {
-                        keywordList.push_back (iter->mId);
-                    }
                 }
             }
         }
 
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
+    }
+
+    std::list<std::string> DialogueManager::getAvailableTopics()
+    {
+        updateActorKnownTopics();
+
+        std::list<std::string> keywordList;
+
+        for (const std::string& topic : mActorKnownTopics)
+        {
+            //does the player know the topic?
+            if (mKnownTopics.count(Misc::StringUtils::lowerCase(topic)))
+                keywordList.push_back(topic);
+        }
 
         // sort again, because the previous sort was case-sensitive
         keywordList.sort(Misc::StringUtils::ciLess);
-        win->setKeywords(keywordList);
+        return keywordList;
     }
 
-    void DialogueManager::keywordSelected (const std::string& keyword)
+    DialogueManager::Response DialogueManager::keywordSelected (const std::string& keyword)
     {
+        Response response;
         if(!mIsInChoice)
         {
             const ESM::Dialogue* dialogue = searchDialogue(keyword);
             if (dialogue && dialogue->mType == ESM::Dialogue::Topic)
             {
-                executeTopic (keyword);
+                response = executeTopic (keyword);
             }
         }
-
-        updateTopics();
+        return response;
     }
 
     bool DialogueManager::isInChoice() const
@@ -383,8 +372,6 @@ namespace MWDialogue
 
     void DialogueManager::goodbyeSelected()
     {
-        MWBase::Environment::get().getWindowManager()->removeGuiMode(MWGui::GM_Dialogue);
-
         // Apply disposition change to NPC's base disposition
         if (mActor.getClass().isNpc())
         {
@@ -400,9 +387,10 @@ namespace MWDialogue
         mTemporaryDispositionChange = 0;
     }
 
-    void DialogueManager::questionAnswered (int answer)
+    DialogueManager::Response DialogueManager::questionAnswered (int answer)
     {
         mChoice = answer;
+        DialogueManager::Response response;
 
         const ESM::Dialogue* dialogue = searchDialogue(mLastTopic);
         if (dialogue)
@@ -418,10 +406,10 @@ namespace MWDialogue
 
                     mChoice = -1;
                     mIsInChoice = false;
-                    MWBase::Environment::get().getWindowManager()->getDialogueWindow()->clearChoices();
+                    mChoices.clear();
 
                     MWScript::InterpreterContext interpreterContext(&mActor.getRefData().getLocals(),mActor);
-                    MWBase::Environment::get().getWindowManager()->getDialogueWindow()->addResponse (Interpreter::fixDefinesDialog(text, interpreterContext));
+                    response = Response("", Interpreter::fixDefinesDialog(text, interpreterContext));
 
                     // Make sure the returned DialInfo is from the Dialogue we supplied. If could also be from the Info refusal group,
                     // in which case it should not be added to the journal.
@@ -441,32 +429,39 @@ namespace MWDialogue
                 {
                     mChoice = -1;
                     mIsInChoice = false;
-                    MWBase::Environment::get().getWindowManager()->getDialogueWindow()->clearChoices();
+                    mChoices.clear();
                 }
             }
         }
 
-        updateTopics();
+        updateActorKnownTopics();
+        return response;
     }
 
-    void DialogueManager::askQuestion (const std::string& question, int choice)
+    void DialogueManager::addChoice (const std::string& text, int choice)
     {
         mIsInChoice = true;
 
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
-        win->addChoice(question, choice);
+        mChoices.push_back(std::make_pair(text, choice));
     }
 
-    void DialogueManager::goodbye()
+    const std::vector<std::pair<std::string, int> >& DialogueManager::getChoices()
     {
-        mIsInChoice = true;
+        return mChoices;
+    }
 
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
+    bool DialogueManager::isGoodbye()
+    {
+        return mGoodbye;
+    }
 
-        win->goodbye();
+    void DialogueManager::goodbye()
+    {
+        mIsInChoice = false;
+        mGoodbye = true;
     }
 
-    void DialogueManager::persuade(int type)
+    DialogueManager::Response DialogueManager::persuade(int type)
     {
         bool success;
         float temp, perm;
@@ -515,7 +510,7 @@ namespace MWDialogue
             text = "Bribe";
         }
 
-        executeTopic (text + (success ? " Success" : " Fail"));
+        return executeTopic (text + (success ? " Success" : " Fail"));
     }
 
     int DialogueManager::getTemporaryDispositionChange() const
@@ -528,7 +523,7 @@ namespace MWDialogue
         mTemporaryDispositionChange += delta;
     }
 
-    bool DialogueManager::checkServiceRefused()
+    bool DialogueManager::checkServiceRefused(Response& response)
     {
         Filter filter (mActor, mChoice, mTalkedTo);
 
@@ -536,7 +531,6 @@ namespace MWDialogue
             MWBase::Environment::get().getWorld()->getStore().get<ESM::Dialogue>();
 
         const ESM::Dialogue& dialogue = *dialogues.find ("Service Refusal");
-        MWGui::DialogueWindow* win = MWBase::Environment::get().getWindowManager()->getDialogueWindow();
 
         std::vector<const ESM::DialInfo *> infos = filter.list (dialogue, false, false, true);
         if (!infos.empty())
@@ -550,8 +544,7 @@ namespace MWDialogue
 
             MWScript::InterpreterContext interpreterContext(&mActor.getRefData().getLocals(),mActor);
 
-            win->addResponse (Interpreter::fixDefinesDialog(info->mResponse, interpreterContext),
-                              gmsts.find ("sServiceRefusal")->getString());
+            response = Response(gmsts.find ("sServiceRefusal")->getString(), Interpreter::fixDefinesDialog(info->mResponse, interpreterContext));
 
             executeScript (info->mResultScript, mActor);
             return true;

apps/openmw/mwdialogue/dialoguemanagerimp.hpp

@@ -41,19 +41,22 @@ namespace MWDialogue
             int mChoice;
             std::string mLastTopic; // last topic ID, lowercase
             bool mIsInChoice;
+            bool mGoodbye;
+
+            std::vector<std::pair<std::string, int> > mChoices;
 
             float mTemporaryDispositionChange;
             float mPermanentDispositionChange;
 
             void parseText (const std::string& text);
 
-            void updateTopics();
+            void updateActorKnownTopics();
             void updateGlobals();
 
             bool compile (const std::string& cmd, std::vector<Interpreter::Type_Code>& code, const MWWorld::Ptr& actor);
             void executeScript (const std::string& script, const MWWorld::Ptr& actor);
 
-            void executeTopic (const std::string& topic);
+            Response executeTopic (const std::string& topic);
 
             const ESM::Dialogue* searchDialogue(const std::string& id);
 
@@ -65,24 +68,29 @@ namespace MWDialogue
 
             virtual bool isInChoice() const;
 
-            virtual void startDialogue (const MWWorld::Ptr& actor);
+            virtual bool startDialogue (const MWWorld::Ptr& actor, Response& response);
+
+            std::list<std::string> getAvailableTopics();
 
             virtual void addTopic (const std::string& topic);
 
-            virtual void askQuestion (const std::string& question,int choice);
+            virtual void addChoice (const std::string& text,int choice);
+            const std::vector<std::pair<std::string, int> >& getChoices();
+
+            virtual bool isGoodbye();
 
             virtual void goodbye();
 
-            virtual bool checkServiceRefused ();
+            virtual bool checkServiceRefused (Response& response);
 
             virtual void say(const MWWorld::Ptr &actor, const std::string &topic);
 
             //calbacks for the GUI
-            virtual void keywordSelected (const std::string& keyword);
+            virtual Response keywordSelected (const std::string& keyword);
             virtual void goodbyeSelected();
-            virtual void questionAnswered (int answer);
+            virtual Response questionAnswered (int answer);
 
-            virtual void persuade (int type);
+            virtual Response persuade (int type);
             virtual int getTemporaryDispositionChange () const;
 
             /// @note This change is temporary and gets discarded when dialogue ends.

apps/openmw/mwgui/dialogue.cpp

@@ -68,7 +68,9 @@ namespace MWGui
         else /*if (sender == mBribe1000Button)*/
             type = MWBase::MechanicsManager::PT_Bribe1000;
 
-        MWBase::Environment::get().getDialogueManager()->persuade(type);
+        MWBase::DialogueManager::Response response = MWBase::Environment::get().getDialogueManager()->persuade(type);
+
+        eventPersuadeMsg(response.first, response.second);
 
         setVisible(false);
     }
@@ -214,30 +216,26 @@ namespace MWGui
 
     void Choice::activated()
     {
-
         MWBase::Environment::get().getWindowManager()->playSound("Menu Click");
-        MWBase::Environment::get().getDialogueManager()->questionAnswered(mChoiceId);
+        eventChoiceActivated(mChoiceId);
     }
 
     void Topic::activated()
     {
-
         MWBase::Environment::get().getWindowManager()->playSound("Menu Click");
-        MWBase::Environment::get().getDialogueManager()->keywordSelected(mTopicId);
+        eventTopicActivated(mTopicId);
     }
 
     void Goodbye::activated()
     {
-
         MWBase::Environment::get().getWindowManager()->playSound("Menu Click");
-        MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+        eventActivated();
     }
 
     // --------------------------------------------------------------------------------------------------
 
     DialogueWindow::DialogueWindow()
         : WindowBase("openmw_dialogue_window.layout")
-        , mEnabled(false)
         , mGoodbye(false)
         , mPersuasionDialog()
     {
@@ -245,13 +243,14 @@ namespace MWGui
         center();
 
         mPersuasionDialog.setVisible(false);
+        mPersuasionDialog.eventPersuadeMsg += MyGUI::newDelegate(this, &DialogueWindow::onPersuadeResult);
 
         //History view
         getWidget(mHistory, "History");
 
         //Topics list
         getWidget(mTopicsList, "TopicsList");
-        mTopicsList->eventItemSelected += MyGUI::newDelegate(this, &DialogueWindow::onSelectTopic);
+        mTopicsList->eventItemSelected += MyGUI::newDelegate(this, &DialogueWindow::onSelectListItem);
 
         getWidget(mGoodbyeButton, "ByeButton");
         mGoodbyeButton->eventMouseButtonClick += MyGUI::newDelegate(this, &DialogueWindow::onByeClicked);
@@ -269,15 +268,27 @@ namespace MWGui
         mMainWidget->castType<MyGUI::Window>()->eventWindowChangeCoord += MyGUI::newDelegate(this, &DialogueWindow::onWindowResize);
     }
 
+    DialogueWindow::~DialogueWindow()
+    {
+        mPersuasionDialog.eventPersuadeMsg.clear();
+
+        deleteLater();
+        for (Link* link : mLinks)
+            delete link;
+        for (auto link : mTopicLinks)
+            delete link.second;
+        for (auto history : mHistoryContents)
+            delete history;
+    }
+
     void DialogueWindow::onTradeComplete()
     {
-        addResponse(MyGUI::LanguageManager::getInstance().replaceTags("#{sBarterDialog5}"));
+        addResponse("", MyGUI::LanguageManager::getInstance().replaceTags("#{sBarterDialog5}"));
     }
 
     bool DialogueWindow::exit()
     {
-        if ((!mEnabled || MWBase::Environment::get().getDialogueManager()->isInChoice())
-                && !mGoodbye)
+        if ((MWBase::Environment::get().getDialogueManager()->isInChoice()))
         {
             return false;
         }
@@ -315,9 +326,9 @@ namespace MWGui
             MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
     }
 
-    void DialogueWindow::onSelectTopic(const std::string& topic, int id)
+    void DialogueWindow::onSelectListItem(const std::string& topic, int id)
     {
-        if (!mEnabled || MWBase::Environment::get().getDialogueManager()->isInChoice())
+        if (mGoodbye ||  MWBase::Environment::get().getDialogueManager()->isInChoice())
             return;
 
         int separatorPos = 0;
@@ -328,17 +339,18 @@ namespace MWGui
         }
 
         if (id >= separatorPos)
-            MWBase::Environment::get().getDialogueManager()->keywordSelected(topic);
+            onTopicActivated(topic);
         else
         {
             const MWWorld::Store<ESM::GameSetting> &gmst =
                 MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();
 
+            MWBase::DialogueManager::Response response;
             if (topic == gmst.find("sPersuasion")->getString())
                 mPersuasionDialog.setVisible(true);
             else if (topic == gmst.find("sCompanionShare")->getString())
                 MWBase::Environment::get().getWindowManager()->pushGuiMode(GM_Companion, mPtr);
-            else if (!MWBase::Environment::get().getDialogueManager()->checkServiceRefused())
+            else if (!MWBase::Environment::get().getDialogueManager()->checkServiceRefused(response))
             {
                 if (topic == gmst.find("sBarter")->getString())
                     MWBase::Environment::get().getWindowManager()->pushGuiMode(GM_Barter, mPtr);
@@ -355,21 +367,30 @@ namespace MWGui
                 else if (topic == gmst.find("sRepair")->getString())
                     MWBase::Environment::get().getWindowManager()->pushGuiMode(GM_MerchantRepair, mPtr);
             }
+            else
+                addResponse(response.first, response.second);
         }
     }
 
-    void DialogueWindow::startDialogue(MWWorld::Ptr actor, std::string npcName)
+    void DialogueWindow::setPtr(const MWWorld::Ptr& actor)
     {
+        MWBase::DialogueManager::Response response;
+        if (!MWBase::Environment::get().getDialogueManager()->startDialogue(actor, response))
+        {
+            // No greetings found. The dialogue window should not be shown.
+            // If this is a companion, we must show the companion window directly (used by BM_bear_be_unique).
+            if (isCompanion())
+                MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Companion, mPtr);
+            return;
+        }
+
         MWBase::Environment::get().getWindowManager()->setKeyFocusWidget(mGoodbyeButton);
 
         mGoodbye = false;
-        mEnabled = true;
         bool sameActor = (mPtr == actor);
         mPtr = actor;
         mTopicsList->setEnabled(true);
-        setTitle(npcName);
-
-        clearChoices();
+        setTitle(mPtr.getClass().getName(mPtr));
 
         mTopicsList->clear();
 
@@ -381,12 +402,13 @@ namespace MWGui
         }
 
         for (std::vector<Link*>::iterator it = mLinks.begin(); it != mLinks.end(); ++it)
-            delete (*it);
+            mDeleteLater.push_back(*it); // Links are not deleted right away to prevent issues with event handlers
         mLinks.clear();
 
         updateDisposition();
-
         restock();
+
+        addResponse(response.first, response.second, false);
     }
 
     void DialogueWindow::restock()
@@ -403,11 +425,18 @@ namespace MWGui
         }
     }
 
+    void DialogueWindow::deleteLater()
+    {
+        for (Link* link : mDeleteLater)
+            delete link;
+        mDeleteLater.clear();
+    }
+
     void DialogueWindow::setKeywords(std::list<std::string> keyWords)
     {
         mTopicsList->clear();
         for (std::map<std::string, Link*>::iterator it = mTopicLinks.begin(); it != mTopicLinks.end(); ++it)
-            delete it->second;
+            mDeleteLater.push_back(it->second);
         mTopicLinks.clear();
         mKeywordSearch.clear();
 
@@ -416,9 +445,6 @@ namespace MWGui
         bool travel = (mPtr.getTypeName() == typeid(ESM::NPC).name() && !mPtr.get<ESM::NPC>()->mBase->getTransport().empty())
                 || (mPtr.getTypeName() == typeid(ESM::Creature).name() && !mPtr.get<ESM::Creature>()->mBase->getTransport().empty());
 
-        bool isCompanion = !mPtr.getClass().getScript(mPtr).empty()
-                && mPtr.getRefData().getLocals().getIntVar(mPtr.getClass().getScript(mPtr), "companion");
-
         const MWWorld::Store<ESM::GameSetting> &gmst =
             MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();
 
@@ -446,7 +472,7 @@ namespace MWGui
         if (services & ESM::NPC::Repair)
             mTopicsList->addItem(gmst.find("sRepair")->getString());
 
-        if (isCompanion)
+        if (isCompanion())
             mTopicsList->addItem(gmst.find("sCompanionShare")->getString());
 
         if (mTopicsList->getItemCount() > 0)
@@ -458,6 +484,7 @@ namespace MWGui
             mTopicsList->addItem(*it);
 
             Topic* t = new Topic(*it);
+            t->eventTopicActivated += MyGUI::newDelegate(this, &DialogueWindow::onTopicActivated);
             mTopicLinks[Misc::StringUtils::lowerCase(*it)] = t;
 
             mKeywordSearch.seed(Misc::StringUtils::lowerCase(*it), intptr_t(t));
@@ -491,9 +518,11 @@ namespace MWGui
         typesetter->sectionBreak(9);
         // choices
         const TextColours& textColours = MWBase::Environment::get().getWindowManager()->getTextColours();
-        for (std::vector<std::pair<std::string, int> >::iterator it = mChoices.begin(); it != mChoices.end(); ++it)
+        mChoices = MWBase::Environment::get().getDialogueManager()->getChoices();
+        for (std::vector<std::pair<std::string, int> >::const_iterator it = mChoices.begin(); it != mChoices.end(); ++it)
         {
             Choice* link = new Choice(it->second);
+            link->eventChoiceActivated += MyGUI::newDelegate(this, &DialogueWindow::onChoiceActivated);
             mLinks.push_back(link);
 
             typesetter->lineBreak();
@@ -503,9 +532,11 @@ namespace MWGui
             typesetter->write(questionStyle, to_utf8_span(it->first.c_str()));
         }
 
+        mGoodbye = MWBase::Environment::get().getDialogueManager()->isGoodbye();
         if (mGoodbye)
         {
             Goodbye* link = new Goodbye();
+            link->eventActivated += MyGUI::newDelegate(this, &DialogueWindow::onGoodbyeActivated);
             mLinks.push_back(link);
             std::string goodbye = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find("sGoodbye")->getString();
             BookTypesetter::Style* questionStyle = typesetter->createHotStyle(body, textColours.answer, textColours.answerOver,
@@ -550,32 +581,40 @@ namespace MWGui
         reinterpret_cast<Link*>(link)->activated();
     }
 
-    void DialogueWindow::onScrollbarMoved(MyGUI::ScrollBar *sender, size_t pos)
+    void DialogueWindow::onTopicActivated(const std::string &topicId)
     {
-        mHistory->setPosition(0, static_cast<int>(pos) * -1);
+        MWBase::DialogueManager::Response response = MWBase::Environment::get().getDialogueManager()->keywordSelected(topicId);
+        addResponse(response.first, response.second);
     }
 
-    void DialogueWindow::addResponse(const std::string &text, const std::string &title, bool needMargin)
+    void DialogueWindow::onChoiceActivated(int id)
     {
-        mHistoryContents.push_back(new Response(text, title, needMargin));
-        updateHistory();
+        MWBase::DialogueManager::Response response = MWBase::Environment::get().getDialogueManager()->questionAnswered(id);
+        addResponse(response.first, response.second);
     }
 
-    void DialogueWindow::addMessageBox(const std::string& text)
+    void DialogueWindow::onGoodbyeActivated()
     {
-        mHistoryContents.push_back(new Message(text));
-        updateHistory();
+        MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+        MWBase::Environment::get().getWindowManager()->removeGuiMode(MWGui::GM_Dialogue);
+        resetReference();
+    }
+
+    void DialogueWindow::onScrollbarMoved(MyGUI::ScrollBar *sender, size_t pos)
+    {
+        mHistory->setPosition(0, static_cast<int>(pos) * -1);
     }
 
-    void DialogueWindow::addChoice(const std::string& choice, int id)
+    void DialogueWindow::addResponse(const std::string &title, const std::string &text, bool needMargin)
     {
-        mChoices.push_back(std::make_pair(choice, id));
+        mHistoryContents.push_back(new Response(text, title, needMargin));
         updateHistory();
+        updateTopics();
     }
 
-    void DialogueWindow::clearChoices()
+    void DialogueWindow::addMessageBox(const std::string& text)
     {
-        mChoices.clear();
+        mHistoryContents.push_back(new Message(text));
         updateHistory();
     }
 
@@ -608,13 +647,6 @@ namespace MWGui
         }
     }
 
-    void DialogueWindow::goodbye()
-    {
-        mGoodbye = true;
-        mEnabled = false;
-        updateHistory();
-    }
-
     void DialogueWindow::onReferenceUnavailable()
     {
         MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
@@ -623,6 +655,30 @@ namespace MWGui
     void DialogueWindow::onFrame(float dt)
     {
         checkReferenceAvailable();
+        if (mPtr.isEmpty())
+            return;
+
         updateDisposition();
+        deleteLater();
+
+        if (mChoices != MWBase::Environment::get().getDialogueManager()->getChoices()
+                || mGoodbye != MWBase::Environment::get().getDialogueManager()->isGoodbye())
+            updateHistory();
+    }
+
+    void DialogueWindow::updateTopics()
+    {
+        setKeywords(MWBase::Environment::get().getDialogueManager()->getAvailableTopics());
+    }
+
+    bool DialogueWindow::isCompanion()
+    {
+        return !mPtr.getClass().getScript(mPtr).empty()
+                && mPtr.getRefData().getLocals().getIntVar(mPtr.getClass().getScript(mPtr), "companion");
+    }
+
+    void DialogueWindow::onPersuadeResult(const std::string &title, const std::string &text)
+    {
+        addResponse(title, text);
     }
 }

apps/openmw/mwgui/dialogue.hpp

@@ -8,6 +8,8 @@
 
 #include "../mwdialogue/keywordsearch.hpp"
 
+#include <MyGUI_Delegate.h>
+
 namespace Gui
 {
     class MWList;
@@ -20,14 +22,14 @@ namespace MWGui
 
 namespace MWGui
 {
-    class DialogueHistoryViewModel;
-    class BookPage;
-
     class PersuasionDialog : public WindowModal
     {
     public:
         PersuasionDialog();
 
+        typedef MyGUI::delegates::CMultiDelegate2<const std::string&, const std::string&> EventHandle_Result;
+        EventHandle_Result eventPersuadeMsg;
+
         virtual void onOpen();
 
     private:
@@ -53,6 +55,8 @@ namespace MWGui
 
     struct Topic : Link
     {
+        typedef MyGUI::delegates::CMultiDelegate1<const std::string&> EventHandle_TopicId;
+        EventHandle_TopicId eventTopicActivated;
         Topic(const std::string& id) : mTopicId(id) {}
         std::string mTopicId;
         virtual void activated ();
@@ -60,6 +64,8 @@ namespace MWGui
 
     struct Choice : Link
     {
+        typedef MyGUI::delegates::CMultiDelegate1<int> EventHandle_ChoiceId;
+        EventHandle_ChoiceId eventChoiceActivated;
         Choice(int id) : mChoiceId(id) {}
         int mChoiceId;
         virtual void activated ();
@@ -67,6 +73,8 @@ namespace MWGui
 
     struct Goodbye : Link
     {
+        typedef MyGUI::delegates::CMultiDelegate0 Event_Activated;
+        Event_Activated eventActivated;
         virtual void activated ();
     };
 
@@ -98,6 +106,7 @@ namespace MWGui
     {
     public:
         DialogueWindow();
+        ~DialogueWindow();
 
         void onTradeComplete();
 
@@ -108,25 +117,29 @@ namespace MWGui
 
         void notifyLinkClicked (TypesetBook::InteractiveId link);
 
-        void startDialogue(MWWorld::Ptr actor, std::string npcName);
+        void setPtr(const MWWorld::Ptr& actor);
+
         void setKeywords(std::list<std::string> keyWord);
 
-        void addResponse (const std::string& text, const std::string& title="", bool needMargin = true);
+        void addResponse (const std::string& title, const std::string& text, bool needMargin = true);
 
         void addMessageBox(const std::string& text);
 
-        void addChoice(const std::string& choice, int id);
-        void clearChoices();
-
-        void goodbye();
         void onFrame(float dt);
         void clear() { resetReference(); }
 
     protected:
-        void onSelectTopic(const std::string& topic, int id);
+        void updateTopics();
+        bool isCompanion();
+
+        void onPersuadeResult(const std::string& title, const std::string& text);
+        void onSelectListItem(const std::string& topic, int id);
         void onByeClicked(MyGUI::Widget* _sender);
         void onMouseWheel(MyGUI::Widget* _sender, int _rel);
         void onWindowResize(MyGUI::Window* _sender);
+        void onTopicActivated(const std::string& topicId);
+        void onChoiceActivated(int id);
+        void onGoodbyeActivated();
 
         void onScrollbarMoved (MyGUI::ScrollBar* sender, size_t pos);
 
@@ -137,17 +150,19 @@ namespace MWGui
     private:
         void updateDisposition();
         void restock();
+        void deleteLater();
 
         bool mEnabled;
 
-        bool mGoodbye;
-
         std::vector<DialogueText*> mHistoryContents;
         std::vector<std::pair<std::string, int> > mChoices;
+        bool mGoodbye;
 
         std::vector<Link*> mLinks;
         std::map<std::string, Link*> mTopicLinks;
 
+        std::vector<Link*> mDeleteLater;
+
         KeywordSearchT mKeywordSearch;
 
         BookPage* mHistory;

apps/openmw/mwgui/enchantingdialog.cpp

@@ -353,6 +353,7 @@ namespace MWGui
 
                     MWBase::Environment::get().getWindowManager()->removeGuiMode (GM_Enchanting);
                     MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+                    MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
                     return;
                 }
             }

apps/openmw/mwgui/tradewindow.cpp

@@ -323,6 +323,7 @@ namespace MWGui
 
                 onCancelButtonClicked(mCancelButton);
                 MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+                MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
                 return;
             }
         }

apps/openmw/mwgui/trainingwindow.cpp

@@ -197,6 +197,7 @@ namespace MWGui
         // go back to game mode
         MWBase::Environment::get().getWindowManager()->removeGuiMode (GM_Training);
         MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+        MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
     }
 
     void TrainingWindow::onFrame(float dt)

apps/openmw/mwgui/travelwindow.cpp

@@ -178,6 +178,7 @@ namespace MWGui
 
         MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Travel);
         MWBase::Environment::get().getDialogueManager()->goodbyeSelected();
+        MWBase::Environment::get().getWindowManager()->removeGuiMode(GM_Dialogue);
 
         // Teleports any followers, too.
         MWWorld::ActionTeleport action(interior ? cellname : "", pos, true);

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -1288,7 +1288,6 @@ namespace MWGui
         mConsole->executeFile (path);
     }
 
-    MWGui::DialogueWindow* WindowManager::getDialogueWindow() { return mDialogueWindow;  }
     MWGui::InventoryWindow* WindowManager::getInventoryWindow() { return mInventoryWindow; }
     MWGui::CountDialog* WindowManager::getCountDialog() { return mCountDialog; }
     MWGui::ConfirmationDialog* WindowManager::getConfirmationDialog() { return mConfirmationDialog; }

apps/openmw/mwgui/windowmanagerimp.hpp

@@ -179,7 +179,6 @@ namespace MWGui
     virtual bool isAllowed(GuiWindow wnd) const;
 
     /// \todo investigate, if we really need to expose every single lousy UI element to the outside world
-    virtual MWGui::DialogueWindow* getDialogueWindow();
     virtual MWGui::InventoryWindow* getInventoryWindow();
     virtual MWGui::CountDialog* getCountDialog();
     virtual MWGui::ConfirmationDialog* getConfirmationDialog();

apps/openmw/mwscript/dialogueextensions.cpp

@@ -11,6 +11,7 @@
 #include "../mwbase/dialoguemanager.hpp"
 #include "../mwbase/journal.hpp"
 #include "../mwbase/world.hpp"
+#include "../mwbase/windowmanager.hpp"
 
 #include "../mwworld/class.hpp"
 #include "../mwmechanics/npcstats.hpp"
@@ -116,7 +117,7 @@ namespace MWScript
                             runtime.pop();
                             arg0 = arg0 -1;
                         }
-                        dialogue->askQuestion(question,choice);
+                        dialogue->addChoice(question,choice);
                     }
                 }
         };
@@ -133,7 +134,7 @@ namespace MWScript
                     if (!ptr.getRefData().isEnabled())
                         return;
 
-                    MWBase::Environment::get().getDialogueManager()->startDialogue (ptr);
+                    MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue, ptr);
                 }
         };
 

apps/openmw/mwworld/actiontalk.cpp

@@ -1,7 +1,7 @@
 #include "actiontalk.hpp"
 
 #include "../mwbase/environment.hpp"
-#include "../mwbase/dialoguemanager.hpp"
+#include "../mwbase/windowmanager.hpp"
 
 namespace MWWorld
 {
@@ -9,6 +9,6 @@ namespace MWWorld
 
     void ActionTalk::executeImp (const Ptr& actor)
     {
-        MWBase::Environment::get().getDialogueManager()->startDialogue (getTarget());
+        MWBase::Environment::get().getWindowManager()->pushGuiMode(MWGui::GM_Dialogue, getTarget());
     }
 }