Enable start button only when source and target is selected

3 files changed, 32 insertions, 4 deletions

diff --git a/alpine-usb-creator.fbp b/alpine-usb-creator.fbp
index 3c388b7..673fc16 100644
--- a/alpine-usb-creator.fbp
+++ b/alpine-usb-creator.fbp
@@ -432,7 +432,7 @@
                                                     <event name="OnChar"></event>

                                                     <event name="OnEnterWindow"></event>

                                                     <event name="OnEraseBackground"></event>

-                                                    <event name="OnFileChanged"></event>

+                                                    <event name="OnFileChanged">OnIsoChange</event>

                                                     <event name="OnKeyDown"></event>

                                                     <event name="OnKeyUp"></event>

                                                     <event name="OnKillFocus"></event>

@@ -500,7 +500,7 @@
                                                     <property name="window_name"></property>

                                                     <property name="window_style"></property>

                                                     <event name="OnChar"></event>

-                                                    <event name="OnChoice"></event>

+                                                    <event name="OnChoice">OnTargetChange</event>

                                                     <event name="OnEnterWindow"></event>

                                                     <event name="OnEraseBackground"></event>

                                                     <event name="OnKeyDown"></event>

@@ -665,7 +665,7 @@
                                             <property name="context_help"></property>

                                             <property name="context_menu">1</property>

                                             <property name="default">0</property>

-                                            <property name="enabled">1</property>

+                                            <property name="enabled">0</property>

                                             <property name="fg"></property>

                                             <property name="font"></property>

                                             <property name="hidden">0</property>

diff --git a/dialog.cpp b/dialog.cpp
index 7b5145b..73a0ff2 100644
--- a/dialog.cpp
+++ b/dialog.cpp
@@ -33,11 +33,14 @@ void Dialog::RefreshDrives(void)
     m_target->Clear();
     m_target->Append(wxT("~/tmp/alpine"));
 #endif
+    if (!m_target->IsEmpty())
+        m_target->SetSelection(0);
 }
 
 void Dialog::OnRefreshDrives(wxCommandEvent &event)
 {
     RefreshDrives();
+    UpdateStartButton();
 }
 
 void Dialog::OnStartButton(wxCommandEvent &event)
@@ -47,5 +50,26 @@ void Dialog::OnStartButton(wxCommandEvent &event)
 
 void Dialog::OnCancelButton(wxCommandEvent &event)
 {
-	Close();	
+    Close();	
 }
+
+void Dialog::UpdateStartButton(void)
+{
+    if ((m_target->GetSelection() != wxNOT_FOUND)
+            && wxFileExists(m_iso_picker->GetPath())) {
+        m_start_button->Enable();
+    } else {
+        m_start_button->Disable();
+    }
+}
+
+void Dialog::OnIsoChange(wxFileDirPickerEvent &event)
+{
+    UpdateStartButton();
+}
+
+void Dialog::OnTargetChange(wxCommandEvent &event)
+{
+    UpdateStartButton();
+}
+
diff --git a/dialog.h b/dialog.h
index e187c19..d8eb652 100644
--- a/dialog.h
+++ b/dialog.h
@@ -10,9 +10,13 @@ public:
 	void RefreshDrives(void);
 
 protected:
+	void UpdateStartButton(void);
+
 	void OnRefreshDrives(wxCommandEvent& event);
 	void OnStartButton(wxCommandEvent& event);
 	void OnCancelButton(wxCommandEvent& event);
+	void OnIsoChange(wxFileDirPickerEvent &event);
+	void OnTargetChange(wxCommandEvent& event);
 };
 
 #endif