File 0012-Simplify-AppMenu-menu-management.patch of Package plasma5-workspace

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File 0012-Simplify-AppMenu-menu-management.patch of Package plasma5-workspace (Revision 47629e01d5c9851d7f76fb85665b483a)

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From f5adedb6a756c45ffdadb88f31e76fe1f39a899e Mon Sep 17 00:00:00 2001
From: David Edmundson <kde@davidedmundson.co.uk>
Date: Wed, 11 Jan 2017 14:00:51 +0000
Subject: [PATCH 12/44] Simplify AppMenu menu management

Summary:
Instead of having a menu from the importer and our custom vertical menu
then syncing entries we can simply use the factory method in
DBusMenuImporter to create our custom one from the start.

This makes memory management easier as we only need to worry about the
importer which implicitly owns the menu.

Test Plan: Ran in-window menu, everything worked for me perfectly.

Reviewers: #plasma, broulik

Reviewed By: #plasma, broulik

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D4062
---
 appmenu/appmenu.cpp     | 39 ++++++++++-----------------------------
 appmenu/appmenu.h       |  5 +++--
 appmenu/kdbusimporter.h |  4 ++++
 3 files changed, 17 insertions(+), 31 deletions(-)

diff --git a/appmenu/appmenu.cpp b/appmenu/appmenu.cpp
index e9d2ad18..52ce4839 100644
--- a/appmenu/appmenu.cpp
+++ b/appmenu/appmenu.cpp
@@ -119,8 +119,8 @@ void AppMenuModule::slotShowMenu(int x, int y, const QString &serviceName, const
     }
 
     // If menu visible, hide it
-    if (m_menu && m_menu->isVisible()) {
-        m_menu->hide();
+    if (m_menu && m_menu.data()->isVisible()) {
+        m_menu.data()->hide();
         return;
     }
 
@@ -132,49 +132,32 @@ void AppMenuModule::slotShowMenu(int x, int y, const QString &serviceName, const
     }
 
     auto *importer = new KDBusMenuImporter(serviceName, menuObjectPath.path(), this);
-    // FIXME this causes a 4 second freeze in dbusmenu when the app times out in aboutToShow
-    // DBusMenuImporter::slotMenuAboutToShow(): Application did not answer to AboutToShow() before timeout
-    //QMetaObject::invokeMethod(importer, "updateMenu", Qt::DirectConnection);
     QMetaObject::invokeMethod(importer, "updateMenu", Qt::QueuedConnection);
-
-    /*connect(importer, &DBusMenuImporter::actionActivationRequested, this, [=](QAction *action) {
-        // else send request to kwin or others dbus interface registrars
-        m_waitingAction = action;
-        emit showRequest(serviceName, menuObjectPath);
-    });*/
+    disconnect(importer, 0, this, 0); // ensure we don't popup multiple times in case the menu updates again later
 
     connect(importer, &KDBusMenuImporter::menuUpdated, this, [=] {
         QMenu *menu = importer->menu();
         if (!menu) {
             return;
         }
+        m_menu = qobject_cast<VerticalMenu*>(menu);
 
-        const auto &actions = menu->actions();
-        if (actions.isEmpty()) {
-            return;
-        }
-
-        m_menu = new VerticalMenu();
-        m_menu->setServiceName(serviceName);
-        m_menu->setMenuObjectPath(menuObjectPath);
-
-        for (QAction *action : actions) {
-            m_menu->addAction(action);
-        }
+        m_menu.data()->setServiceName(serviceName);
+        m_menu.data()->setMenuObjectPath(menuObjectPath);
 
-        connect(m_menu, &QMenu::aboutToHide, this, [this, importer] {
+        connect(m_menu.data(), &QMenu::aboutToHide, this, [this, importer] {
             hideMenu();
             importer->deleteLater();
         });
 
         //m_menuImporter->fakeUnityAboutToShow(serviceName, menuObjectPath);
 
-        m_menu->popup(QPoint(x, y));
+        m_menu.data()->popup(QPoint(x, y));
 
         emit menuShown(serviceName, menuObjectPath);
 
         if (m_waitingAction) {
-            m_menu->setActiveAction(m_waitingAction);
+            m_menu.data()->setActiveAction(m_waitingAction);
             m_waitingAction = nullptr;
         }
     });
@@ -183,9 +166,7 @@ void AppMenuModule::slotShowMenu(int x, int y, const QString &serviceName, const
 void AppMenuModule::hideMenu()
 {
     if (m_menu) {
-        emit menuHidden(m_menu->serviceName(), m_menu->menuObjectPath());
-        m_menu->deleteLater();
-        m_menu = nullptr;
+        emit menuHidden(m_menu.data()->serviceName(), m_menu->menuObjectPath());
     }
 }
 
diff --git a/appmenu/appmenu.h b/appmenu/appmenu.h
index dacfd7b6..6fd22bc4 100644
--- a/appmenu/appmenu.h
+++ b/appmenu/appmenu.h
@@ -28,6 +28,8 @@
 #define APPMENUMODULE_H
 
 #include <kdedmodule.h>
+
+#include <QPointer>
 #include "menuimporter.h"
 
 class QDBusPendingCallWatcher;
@@ -89,10 +91,9 @@ private:
 
     MenuImporter *m_menuImporter = nullptr;
     AppmenuDBus *m_appmenuDBus;
+    QPointer<VerticalMenu> m_menu;
 
-    VerticalMenu *m_menu = nullptr;
     QAction *m_waitingAction = nullptr;
-
 };
 
 #endif
diff --git a/appmenu/kdbusimporter.h b/appmenu/kdbusimporter.h
index d4246e10..ead7d65f 100644
--- a/appmenu/kdbusimporter.h
+++ b/appmenu/kdbusimporter.h
@@ -29,6 +29,7 @@
 #include <dbusmenuimporter.h>
 
 #include <QIcon>
+#include "verticalmenu.h"
 
 class KDBusMenuImporter : public DBusMenuImporter
 {
@@ -45,6 +46,9 @@ protected:
         return QIcon::fromTheme(name);
     }
 
+    QMenu *createMenu(QWidget *parent) override {
+        return new VerticalMenu(parent);
+    }
 };
 
 #endif //KDBUSMENUIMPORTER_H
-- 
2.12.0

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File 0012-Simplify-AppMenu-menu-management.patch of Package plasma5-workspace (Revision 47629e01d5c9851d7f76fb85665b483a)

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