Don't enable ok button when we don't have test apps

src/ksieveui/sievescriptdebugger/sievescriptdebuggerdialog.cpp

@@ -81,7 +81,9 @@ void SieveScriptDebuggerDialog::debugButtonEnableStateChanged(bool state)
 
 void SieveScriptDebuggerDialog::slotScriptTextChanged()
 {
-    mOkButton->setEnabled(mOriginScript != mSieveScriptDebuggerWidget->script());
+    if (mSieveScriptDebuggerWidget->haveDebugApps()) {
+        mOkButton->setEnabled(mOriginScript != mSieveScriptDebuggerWidget->script());
+    }
 }
 
 void SieveScriptDebuggerDialog::slotAccepted()

src/ksieveui/sievescriptdebugger/sievescriptdebuggerwidget.cpp

@@ -94,9 +94,16 @@ QString SieveScriptDebuggerWidget::script() const
 void SieveScriptDebuggerWidget::checkSieveTestApplication()
 {
     if (QStandardPaths::findExecutable(QStringLiteral("sieve-test")).isEmpty()) {
+        mHaveDebugApps = false;
         mStackedWidget->setCurrentWidget(mSieveNoExistingFrontEnd);
         Q_EMIT sieveTestNotFound();
     } else {
+        mHaveDebugApps = true;
         mStackedWidget->setCurrentWidget(mSieveScriptFrontEnd);
     }
 }
+
+bool SieveScriptDebuggerWidget::haveDebugApps() const
+{
+    return mHaveDebugApps;
+}

src/ksieveui/sievescriptdebugger/sievescriptdebuggerwidget.h

@@ -38,13 +38,15 @@ public:
     ~SieveScriptDebuggerWidget();
 
     void setScript(const QString &script);
-    QString script() const;
+    Q_REQUIRED_RESULT QString script() const;
 
     bool canAccept() const;
 
     QList<int> splitterSizes() const;
     void setSplitterSizes(const QList<int> &sizes);
 
+    Q_REQUIRED_RESULT bool haveDebugApps() const;
+
 Q_SIGNALS:
     void scriptTextChanged();
     void debugScriptButtonClicked();
@@ -56,6 +58,7 @@ private:
     QStackedWidget *mStackedWidget = nullptr;
     SieveScriptDebuggerFrontEndWidget *mSieveScriptFrontEnd = nullptr;
     QLabel *mSieveNoExistingFrontEnd = nullptr;
+    bool mHaveDebugApps = false;
 };
 }
 #endif // SIEVESCRIPTDEBUGGERWIDGET_H