From 64ffd414d6bbe05be33e7a6a1cf6028d5d883be6 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Wed, 28 Jan 2015 17:05:29 +0000
Subject: Stop using dynamic_cast when performing text drag (Mac OS only).

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10536 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 FL/mac.H                | 1 +
 src/Fl_Input.cxx        | 7 ++++++-
 src/Fl_Text_Display.cxx | 4 ++++
 src/Fl_cocoa.mm         | 9 +++++++--
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/FL/mac.H b/FL/mac.H
index 1bfd77a47..9a5e193a5 100644
--- a/FL/mac.H
+++ b/FL/mac.H
@@ -186,6 +186,7 @@ public:
   static int insertion_point_location(int *px, int *py, int *pheight); // computes window coordinates & height of insertion point
   static const int CoreText_threshold;  // Mac OS version from which the Core Text API is used to display text
   static Fl_Fontdesc* calc_fl_fonts(void); // computes the fl_fonts global variable
+  static int dnd(int use_selection); // call Fl_X::dnd(1) to support text dragging
 private:
 #if FLTK_ABI_VERSION >= 10304
   CGRect* subRect_;           // makes sure subwindow remains inside its parent window
diff --git a/src/Fl_Input.cxx b/src/Fl_Input.cxx
index 9dcc0eed8..a7232117e 100644
--- a/src/Fl_Input.cxx
+++ b/src/Fl_Input.cxx
@@ -678,7 +678,12 @@ int Fl_Input::handle(int event) {
           dnd_save_mark = mark();
 	  dnd_save_focus = this;
           // drag the data:
-          copy(0); Fl::dnd();
+          copy(0);
+#ifdef __APPLE__
+          Fl_X::dnd(1);
+#else
+          Fl::dnd();
+#endif
           return 1;
         }
       }
diff --git a/src/Fl_Text_Display.cxx b/src/Fl_Text_Display.cxx
index 613481da0..7159a036d 100644
--- a/src/Fl_Text_Display.cxx
+++ b/src/Fl_Text_Display.cxx
@@ -3863,7 +3863,11 @@ int Fl_Text_Display::handle(int event) {
       if (dragType==DRAG_START_DND) {
         if (!Fl::event_is_click() && Fl::dnd_text_ops()) {
           const char* copy = buffer()->selection_text();
+#ifdef __APPLE__
+          Fl_X::dnd(1);
+#else
           Fl::dnd();
+#endif
           free((void*)copy);
         }
         return 1;
diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 495806c97..0c1736a86 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -4001,7 +4001,12 @@ static NSImage *defaultDragImage(int *pwidth, int *pheight)
   return image;
 }
 
-int Fl::dnd(void)
+int Fl::dnd()
+{
+  return Fl_X::dnd(0);
+}
+
+int Fl_X::dnd(int use_selection)
 {
   CFDataRef text = CFDataCreate(kCFAllocatorDefault, (UInt8*)fl_selection_buffer[0], fl_selection_length[0]);
   if (text==NULL) return false;
@@ -4018,7 +4023,7 @@ int Fl::dnd(void)
   
   int width, height;
   NSImage *image;
-  if ( dynamic_cast<Fl_Input_*>(w) != NULL ||  dynamic_cast<Fl_Text_Display*>(w) != NULL) {
+  if (use_selection) {
     fl_selection_buffer[0][ fl_selection_length[0] ] = 0;
     image = imageFromText(fl_selection_buffer[0], &width, &height);
   } else {
-- 
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