Fix port deprecated [=] operator in c++20

Minimal set of changes so that a compiled version of NeoChat on KF6 will run and at least be functional.

src/models/completionmodel.cpp

@@ -145,7 +145,7 @@ void CompletionModel::updateCompletion()
         m_filterModel->setFullText(m_fullText);
         m_filterModel->setFilterText(m_text);
         m_filterModel->invalidate();
-    } else if (text().startsWith(QLatin1Char(':')) && !text()[1].isUpper()
+    } else if (text().startsWith(QLatin1Char(':')) && text().size() > 1 && !text()[1].isUpper()
                && (m_fullText.indexOf(QLatin1Char(':'), 1) == -1
                    || (m_fullText.indexOf(QLatin1Char(' ')) != -1 && m_fullText.indexOf(QLatin1Char(':'), 1) > m_fullText.indexOf(QLatin1Char(' '), 1)))) {
         m_filterModel->setSourceModel(m_emojiModel);

src/qml/Page/ImageEditorPage.qml

@@ -31,15 +31,15 @@ Kirigami.Page {
         imageDoc.crop(selectionTool.selectionX / ratioX, selectionTool.selectionY / ratioY, selectionTool.selectionWidth / ratioX, selectionTool.selectionHeight / ratioY);
     }
 
-    actions {
+    actions: [
-        left: Kirigami.Action {
+        Kirigami.Action {
             id: undoAction
             text: i18nc("@action:button Undo modification", "Undo")
             icon.name: "edit-undo"
             onTriggered: imageDoc.undo();
             visible: imageDoc.edited
-        }
+        },
-        main: Kirigami.Action {
+        Kirigami.Action {
             id: okAction
             text: i18nc("@action:button Accept image modification", "Accept")
             icon.name: "dialog-ok"
@@ -54,7 +54,7 @@ Kirigami.Page {
                 }
             }
         }
-    }
+    ]
 
 
 

src/qml/Page/JoinRoomPage.qml

@@ -122,10 +122,10 @@ Kirigami.ScrollablePage {
 
                     title: i18nc("@title:window", "Add server")
 
-                    onSheetOpenChanged: if (!serverUrlField.isValidServer && !sheetOpen) {
+                    onOpened: if (!serverUrlField.isValidServer && !opened) {
                             serverField.currentIndex = 0
                             server = serverField.currentValue
-                        } else if (sheetOpen) {
+                        } else if (opened) {
                             serverUrlField.forceActiveFocus()
                         }
 

src/qml/Page/RoomList/ExploreComponent.qml

@@ -40,7 +40,7 @@ RowLayout {
         text: i18n("Create a Space")
         icon.name: "list-add"
         onTriggered: {
-            let dialog = createSpaceDialog.createObject(root.overlay);
+            let dialog = createSpaceDialog.createObject(applicationWindow().overlay);
             dialog.open()
         }
     }

src/qml/Page/RoomPage.qml

@@ -27,13 +27,13 @@ Kirigami.Page {
     focus: true
     padding: 0
 
-    actions {
+    actions: [
-        main: Kirigami.Action {
+        Kirigami.Action {
             visible: Kirigami.Settings.isMobile || !applicationWindow().pageStack.wideMode
             icon.name: "view-right-new"
             onTriggered: applicationWindow().openRoomDrawer()
         }
-    }
+    ]
 
     KeyNavigation.left: pageStack.get(0)
 

src/qml/RoomDrawer/RoomDrawerPage.qml

@@ -31,12 +31,12 @@ Kirigami.ScrollablePage {
 
     title: roomInformation.title
 
-    actions {
+    actions: [
-        main: Kirigami.Action {
+        Kirigami.Action {
             icon.name: "settings-configure"
             onTriggered: applicationWindow().pageStack.pushDialogLayer('qrc:/Categories.qml', {room: root.room}, { title: i18n("Room Settings") })
         }
-    }
+    ]
 
     RoomInformation {
         id: roomInformation

src/registration.cpp

@@ -21,9 +21,9 @@ Registration::Registration()
 {
     auto server = new QTcpServer(this);
     server->listen(QHostAddress("127.0.0.1"_ls), 20847);
-    connect(server, &QTcpServer::newConnection, this, [=]() {
+    connect(server, &QTcpServer::newConnection, this, [this, server]() {
         auto conn = server->nextPendingConnection();
-        connect(conn, &QIODevice::readyRead, this, [=]() {
+        connect(conn, &QIODevice::readyRead, this, [this, conn]() {
             auto code =
                 "HTTP/1.0 200\nContent-type: text/html\n\n<html><head><script src=\"https://www.google.com/recaptcha/api.js\" async defer></script></head><body style=\"background: #00000000\"><center><div class=\"g-recaptcha\" data-sitekey=\"%1\"></div></center></body></html>"_ls
                     .arg(m_recaptchaSiteKey);
@@ -86,7 +86,7 @@ void Registration::registerAccount()
         };
     }
     auto job = m_connection->callApi<NeoChatRegisterJob>("user"_ls, authData, m_username, m_password, QString(), QString(), true);
-    connect(job, &BaseJob::result, this, [=]() {
+    connect(job, &BaseJob::result, this, [this, job]() {
         if (job->status() == BaseJob::Success) {
             setNextStep("loading"_ls);
             auto connection = new NeoChatConnection(this);
@@ -332,7 +332,7 @@ void Registration::registerEmail()
     data.sendAttempt = 0;
 
     auto job = m_connection->callApi<RequestTokenToRegisterEmailJob>(data);
-    connect(job, &BaseJob::finished, this, [=]() {
+    connect(job, &BaseJob::finished, this, [this, job]() {
         m_sid = job->jsonData()["sid"_ls].toString();
     });
 }