X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a2c9411060933aa5e92edf3e6251f9fc90090d20..fdf20a26dba64a6d31dead1e1d19b2d755c0af13:/src/gtk/combobox.cpp

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index 88a9c2fd29..e5a8a75d6d 100644
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -44,6 +44,20 @@ gtkcombobox_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 {
     combo->SendSelectionChangedEvent(wxEVT_COMMAND_COMBOBOX_SELECTED);
 }
+
+static void
+gtkcombobox_popupshown_callback(GObject *WXUNUSED(gobject),
+                                GParamSpec *WXUNUSED(param_spec),
+                                wxComboBox *combo)
+{
+    gboolean isShown;
+    g_object_get( combo->m_widget, "popup-shown", &isShown, NULL );
+    wxCommandEvent event( isShown ? wxEVT_COMMAND_COMBOBOX_DROPDOWN
+                                  : wxEVT_COMMAND_COMBOBOX_CLOSEUP,
+                          combo->GetId() );
+    event.SetEventObject( combo );
+    combo->HandleWindowEvent( event );
+}
 }
 
 //-----------------------------------------------------------------------------
@@ -72,6 +86,11 @@ BEGIN_EVENT_TABLE(wxComboBox, wxChoice)
     EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
 END_EVENT_TABLE()
 
+void wxComboBox::Init()
+{
+    m_entry = NULL;
+}
+
 bool wxComboBox::Create( wxWindow *parent, wxWindowID id,
                          const wxString& value,
                          const wxPoint& pos, const wxSize& size,
@@ -91,8 +110,6 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                          long style, const wxValidator& validator,
                          const wxString& name )
 {
-    m_strings = NULL;
-
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
@@ -103,12 +120,7 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     if (HasFlag(wxCB_SORT))
         m_strings = new wxSortedArrayString();
 
-    m_widget = gtk_combo_box_entry_new_text();
-
-    // Set it up to trigger default item on enter key press
-    GtkWidget *widget = gtk_bin_get_child(GTK_BIN(m_widget));
-    gtk_entry_set_activates_default(GTK_ENTRY(widget),
-                                    !HasFlag(wxTE_PROCESS_ENTER));
+    GTKCreateComboBoxWidget();
 
     if (HasFlag(wxBORDER_NONE))
     {
@@ -118,35 +130,65 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
 
     GtkEntry * const entry = GetEntry();
 
-    gtk_entry_set_editable( entry, TRUE );
+    if ( entry )
+    {
+        // Set it up to trigger default item on enter key press
+        gtk_entry_set_activates_default( entry,
+                                         !HasFlag(wxTE_PROCESS_ENTER) );
+
+        gtk_entry_set_editable( entry, TRUE );
+    }
 
     Append(n, choices);
 
     m_parent->DoAddChild( this );
 
-    m_focusWidget = GTK_WIDGET( entry );
+    if ( entry )
+        m_focusWidget = GTK_WIDGET( entry );
 
     PostCreation(size);
 
-    gtk_entry_set_text( entry, wxGTK_CONV(value) );
-
-    if (style & wxCB_READONLY)
-        gtk_entry_set_editable( entry, FALSE );
-
-    g_signal_connect_after (entry, "changed",
-                        G_CALLBACK (gtkcombobox_text_changed_callback), this);
+    if ( entry )
+    {
+        if (style & wxCB_READONLY)
+        {
+            // this will assert and do nothing if the value is not in our list
+            // of strings which is the desired behaviour (for consistency with
+            // wxMSW and also because it doesn't make sense to have a string
+            // which is not a possible choice in a read-only combobox)
+            SetStringSelection(value);
+            gtk_entry_set_editable( entry, FALSE );
+        }
+        else // editable combobox
+        {
+            // any value is accepted, even if it's not in our list
+            gtk_entry_set_text( entry, wxGTK_CONV(value) );
+        }
+
+        g_signal_connect_after (entry, "changed",
+                                G_CALLBACK (gtkcombobox_text_changed_callback), this);
+    }
 
     g_signal_connect_after (m_widget, "changed",
                         G_CALLBACK (gtkcombobox_changed_callback), this);
 
+    if ( !gtk_check_version(2,10,0) )
+    {
+        g_signal_connect (m_widget, "notify::popup-shown",
+                          G_CALLBACK (gtkcombobox_popupshown_callback), this);
+    }
+
     SetInitialSize(size); // need this too because this is a wxControlWithItems
 
     return true;
 }
 
-GtkEntry *wxComboBox::GetEntry() const
+void wxComboBox::GTKCreateComboBoxWidget()
 {
-    return GTK_ENTRY(GTK_BIN(m_widget)->child);
+    m_widget = gtk_combo_box_entry_new_text();
+    g_object_ref(m_widget);
+
+    m_entry = GTK_ENTRY(GTK_BIN(m_widget)->child);
 }
 
 GtkEditable *wxComboBox::GetEditable() const
@@ -159,7 +201,7 @@ void wxComboBox::OnChar( wxKeyEvent &event )
     switch ( event.GetKeyCode() )
     {
         case WXK_RETURN:
-            if ( HasFlag(wxTE_PROCESS_ENTER) )
+            if ( HasFlag(wxTE_PROCESS_ENTER) && GetEntry() )
             {
                 // GTK automatically selects an item if its in the list
                 wxCommandEvent eventEnter(wxEVT_COMMAND_TEXT_ENTER, GetId());
@@ -182,20 +224,26 @@ void wxComboBox::OnChar( wxKeyEvent &event )
 
 void wxComboBox::DisableEvents()
 {
-    g_signal_handlers_block_by_func(GTK_BIN(m_widget)->child,
-        (gpointer)gtkcombobox_text_changed_callback, this);
+    if ( GetEntry() )
+        g_signal_handlers_block_by_func(GTK_BIN(m_widget)->child,
+            (gpointer)gtkcombobox_text_changed_callback, this);
 
     g_signal_handlers_block_by_func(m_widget,
         (gpointer)gtkcombobox_changed_callback, this);
+    g_signal_handlers_block_by_func(m_widget,
+        (gpointer)gtkcombobox_popupshown_callback, this);
 }
 
 void wxComboBox::EnableEvents()
 {
-    g_signal_handlers_unblock_by_func(GTK_BIN(m_widget)->child,
-        (gpointer)gtkcombobox_text_changed_callback, this);
+    if ( GetEntry() )
+        g_signal_handlers_unblock_by_func(GTK_BIN(m_widget)->child,
+            (gpointer)gtkcombobox_text_changed_callback, this);
 
     g_signal_handlers_unblock_by_func(m_widget,
         (gpointer)gtkcombobox_changed_callback, this);
+    g_signal_handlers_unblock_by_func(m_widget,
+        (gpointer)gtkcombobox_popupshown_callback, this);
 }
 
 GtkWidget* wxComboBox::GetConnectWidget()