Adds external editor capability to fluid for all platforms.

Solves STR#3213. [CORRECTED]



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11818 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 51 insertions, 0 deletions

diff --git a/fluid/ExternalCodeEditor_UNIX.h b/fluid/ExternalCodeEditor_UNIX.h
new file mode 100644
index 000000000..07d8e3762
--- /dev/null
+++ b/fluid/ExternalCodeEditor_UNIX.h
@@ -0,0 +1,51 @@
+//
+// "$Id: ExternalCodeEditor_UNIX.h 10800 2016-07-10 00:00:00Z greg.ercolano $".
+//
+//       External code editor management class for Unix
+//
+//       Handles starting and keeping track of an external text editor,
+//       including process start, temp file creation/removal, bookkeeping, killing..
+//
+#ifndef _EXTCODEEDITOR_H
+#define _EXTCODEEDITOR_H
+
+#include <errno.h>      /* errno */
+#include <string.h>     /* strerror() */
+
+#include <sys/types.h>  /* stat().. */
+#include <sys/stat.h>
+#include <unistd.h>
+
+class ExternalCodeEditor {
+  int pid_;
+  time_t file_mtime_;                   // last modify time of the file (used to determine if file changed)
+  size_t file_size_;                    // last file size (used to determine if changed)
+  const char *filename_;
+protected:
+  void kill_editor();
+  const char *create_tmpdir();
+  const char *tmp_filename();
+  int start_editor(const char *cmd, const char *filename);
+  void set_filename(const char *val);
+public:
+  ExternalCodeEditor();
+  ~ExternalCodeEditor();
+  int is_editing();
+  pid_t reap_editor();
+  const char *filename() { return filename_; }
+  int open_editor(const char *editor_cmd, const char *code);
+  int handle_changes(const char **code, int force=0);
+  int remove_tmpfile();
+  // Public static methods
+  static void start_update_timer();
+  static void stop_update_timer();
+  static const char* tmpdir_name();
+  static void tmpdir_clear();
+  static int editors_open();
+  static void set_update_timer_callback(Fl_Timeout_Handler);
+};
+
+#endif /*_EXTCODEEDITOR_H */
+//
+// End of "$Id: ExternalCodeEditor_UNIX.h 10800 2016-07-10 00:00:00Z greg.ercolano $".
+//