X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4d3e2dc9935ab7d46ce7ede856b496591b0d0627..81f94bb54ef82056e0170b23af4b2595f3503aa3:/src/osx/cocoa/filedlg.mm

diff --git a/src/osx/cocoa/filedlg.mm b/src/osx/cocoa/filedlg.mm
index a1c79b7fc5..d08d3a3c3e 100644
--- a/src/osx/cocoa/filedlg.mm
+++ b/src/osx/cocoa/filedlg.mm
@@ -38,6 +38,8 @@
 #include "wx/osx/private.h"
 #include "wx/sysopt.h"
 
+#include <mach-o/dyld.h>
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -49,6 +51,32 @@
 // then the delegate method - (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename will have to
 // be implemented
 
+namespace
+{
+
+bool HasAppKit_10_6()
+{
+    // Even if we require 10.6, we might be loaded by an application that
+    // was linked against 10.5.  setAllowedFileTypes will still be ignored
+    // in this case.  From NSSavePanel.h:
+    // NSOpenPanel: On versions less than 10.6, this property is ignored.
+    // For applications that link against 10.6 and higher, this property will
+    // determine which files should be enabled in the open panel.
+    int32_t version = NSVersionOfLinkTimeLibrary("AppKit");
+    if (version == -1)
+    {
+        // If we're loaded by an application that doesn't link against AppKit,
+        // use the runtime version instead.  This check will not work for the
+        // case above.
+        version = NSVersionOfRunTimeLibrary("AppKit");
+    }
+
+    // Notice that this still works correctly even if version is -1.
+    return version >= 0x40e2400 /* version of 10.6 AppKit */;
+}
+
+} // anonymous namespace
+
 @interface wxOpenPanelDelegate : NSObject wxOSX_10_6_AND_LATER(<NSOpenSavePanelDelegate>)
 {
     wxFileDialog* _dialog;
@@ -436,7 +464,7 @@ void wxFileDialog::SetupExtraControls(WXWindow nativeWindow)
         accView = m_filterPanel->GetHandle();
         if( HasFlag(wxFD_OPEN) )
         {
-            if ( UMAGetSystemVersion() < 0x1060 )
+            if ( UMAGetSystemVersion() < 0x1060 || !HasAppKit_10_6() )
             {
                 wxOpenPanelDelegate* del = [[wxOpenPanelDelegate alloc]init];
                 [del setFileDialog:this];
@@ -585,20 +613,22 @@ int wxFileDialog::ShowModal()
         [oPanel setMessage:cf.AsNSString()];
         [oPanel setAllowsMultipleSelection: (HasFlag(wxFD_MULTIPLE) ? YES : NO )];
 
-        if ( UMAGetSystemVersion() < 0x1060 )
-        {
-            returnCode = [oPanel runModalForDirectory:m_dir.IsEmpty() ? nil : dir.AsNSString()
-                                                 file:file.AsNSString() types:(m_delegate == nil ? types : nil)];
-        }
-        else 
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+        if ( UMAGetSystemVersion() >= 0x1060 && HasAppKit_10_6() )
         {
             [oPanel setAllowedFileTypes: (m_delegate == nil ? types : nil)];
             if ( !m_dir.IsEmpty() )
                 [oPanel setDirectoryURL:[NSURL fileURLWithPath:dir.AsNSString() 
-                                               isDirectory:YES]];
+                                                   isDirectory:YES]];
             returnCode = [oPanel runModal];
         }
-
+        else 
+#endif
+        {
+            returnCode = [oPanel runModalForDirectory:m_dir.IsEmpty() ? nil : dir.AsNSString()
+                                                 file:file.AsNSString() types:(m_delegate == nil ? types : nil)];
+        }
+            
         ModalFinishedCallback(oPanel, returnCode);
     }