JsonWizard: Allow to delegate accept/reject to the current page

Change-Id: I1d2826159ce1cd4f531a576720b9ba6f204d15fb
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/libs/utils/wizardpage.cpp

@@ -70,4 +70,14 @@ void WizardPage::registerFieldWithName(const QString &name, QWidget *widget,
     registerField(name, widget, property, changedSignal);
 }
 
+bool WizardPage::handleReject()
+{
+    return false;
+}
+
+bool WizardPage::handleAccept()
+{
+    return false;
+}
+
 } // namespace Utils

src/libs/utils/wizardpage.h

@@ -52,6 +52,9 @@ public:
     void registerFieldWithName(const QString &name, QWidget *widget,
                                const char *property = 0, const char *changedSignal = 0);
 
+    virtual bool handleReject();
+    virtual bool handleAccept();
+
 signals:
     // Emitted when there is something that the developer using this page should be aware of.
     void reportError(const QString &errorMessage);

src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp

@@ -176,6 +176,10 @@ void JsonWizard::removeAttributeFromAllFiles(Core::GeneratedFile::Attribute a)
 
 void JsonWizard::accept()
 {
+    auto page = qobject_cast<Utils::WizardPage *>(currentPage());
+    if (page && page->handleAccept())
+        return;
+
     Utils::Wizard::accept();
 
     QString errorMessage;
@@ -231,6 +235,15 @@ void JsonWizard::accept()
     openFiles(m_files);
 }
 
+void JsonWizard::reject()
+{
+    auto page = qobject_cast<Utils::WizardPage *>(currentPage());
+    if (page && page->handleReject())
+        return;
+
+    Utils::Wizard::reject();
+}
+
 void JsonWizard::handleNewPages(int pageId)
 {
     Utils::WizardPage *wp = qobject_cast<Utils::WizardPage *>(page(pageId));

src/plugins/projectexplorer/jsonwizard/jsonwizard.h

@@ -95,6 +95,7 @@ signals:
 
 public slots:
     void accept();
+    void reject();
 
 private slots:
     void handleNewPages(int pageId);