add gtksecentry/secmem from gpg pinentry

code is licensed GPLv2

git-svn-id: http://svn.gnome.org/svn/krb5-auth-dialog/trunk@101 517b70f8-ed25-0410-8bf6-f5db08f7b76e

1 files changed, 181 insertions, 0 deletions

diff --git a/gtksecentry/gtksecentry.h b/gtksecentry/gtksecentry.h
new file mode 100644
index 0000000..12736cd
--- /dev/null
+++ b/gtksecentry/gtksecentry.h
@@ -0,0 +1,181 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ * Copyright (C) 2004 Albrecht Dreß
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+/*
+ * Heavily stripped down for use in pinentry-gtk-2 by Albrecht Dreß
+ * <albrecht.dress@arcor.de> Feb. 2004:
+ *
+ * The entry is now always invisible, uses secure memory methods to
+ * allocate the text memory, and all potentially dangerous methods
+ * (copy & paste, popup, etc.) have been removed.
+ */
+
+#ifndef __GTK_SECURE_ENTRY_H__
+#define __GTK_SECURE_ENTRY_H__
+
+
+#include <gtk/gtk.h>
+
+#ifdef __cplusplus
+extern "C" {
+#ifdef MAKE_EMACS_HAPPY
+}
+#endif				/* MAKE_EMACS_HAPPY */
+#endif				/* __cplusplus */
+#define GTK_TYPE_SECURE_ENTRY                  (gtk_secure_entry_get_type ())
+#define GTK_SECURE_ENTRY(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SECURE_ENTRY, GtkSecureEntry))
+#define GTK_SECURE_ENTRY_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_SECURE_ENTRY, GtkSecureEntryClass))
+#define GTK_IS_SECURE_ENTRY(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SECURE_ENTRY))
+#define GTK_IS_SECURE_ENTRY_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_SECURE_ENTRY))
+#define GTK_SECURE_ENTRY_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_SECURE_ENTRY, GtkSecureEntryClass))
+typedef struct _GtkSecureEntry GtkSecureEntry;
+typedef struct _GtkSecureEntryClass GtkSecureEntryClass;
+
+struct _GtkSecureEntry {
+    GtkWidget widget;
+
+    gchar *text;
+
+    guint overwrite_mode:1;
+
+    guint16 text_length;	/* length in use, in chars */
+    guint16 text_max_length;
+
+    /*< private > */
+    GdkWindow *text_area;
+    GtkIMContext *im_context;
+
+    gint current_pos;
+    gint selection_bound;
+
+    PangoLayout *cached_layout;
+    guint cache_includes_preedit:1;
+
+    guint need_im_reset:1;
+
+    guint has_frame:1;
+
+    guint activates_default:1;
+
+    guint cursor_visible:1;
+
+    guint in_click:1;		/* Flag so we don't select all when clicking in entry to focus in */
+
+    guint is_cell_renderer:1;
+    guint editing_canceled:1;	/* Only used by GtkCellRendererText */
+
+    guint mouse_cursor_obscured:1;
+
+    guint resolved_dir : 4; /* PangoDirection */
+
+    guint button;
+    guint blink_timeout;
+    guint recompute_idle;
+    gint scroll_offset;
+    gint ascent;		/* font ascent, in pango units  */
+    gint descent;		/* font descent, in pango units  */
+
+    guint16 text_size;		/* allocated size, in bytes */
+    guint16 n_bytes;		/* length in use, in bytes */
+
+    guint16 preedit_length;	/* length of preedit string, in bytes */
+    guint16 preedit_cursor;	/* offset of cursor within preedit string, in chars */
+
+    gunichar invisible_char;
+
+    gint width_chars;
+};
+
+struct _GtkSecureEntryClass {
+    GtkWidgetClass parent_class;
+
+    /* Action signals
+     */
+    void (*activate) (GtkSecureEntry * entry);
+    void (*move_cursor) (GtkSecureEntry * entry,
+			 GtkMovementStep step,
+			 gint count, gboolean extend_selection);
+    void (*insert_at_cursor) (GtkSecureEntry * entry, const gchar * str);
+    void (*delete_from_cursor) (GtkSecureEntry * entry,
+				GtkDeleteType type, gint count);
+
+    /* Padding for future expansion */
+    void (*_gtk_reserved1) (void);
+    void (*_gtk_reserved2) (void);
+    void (*_gtk_reserved3) (void);
+    void (*_gtk_reserved4) (void);
+};
+
+GType
+gtk_secure_entry_get_type(void)
+    G_GNUC_CONST;
+GtkWidget *
+gtk_secure_entry_new(void);
+void
+gtk_secure_entry_set_invisible_char(GtkSecureEntry * entry, gunichar ch);
+gunichar
+gtk_secure_entry_get_invisible_char(GtkSecureEntry * entry);
+void
+gtk_secure_entry_set_has_frame(GtkSecureEntry * entry, gboolean setting);
+gboolean
+gtk_secure_entry_get_has_frame(GtkSecureEntry * entry);
+/* text is truncated if needed */
+void
+gtk_secure_entry_set_max_length(GtkSecureEntry * entry, gint max);
+gint
+gtk_secure_entry_get_max_length(GtkSecureEntry * entry);
+void
+gtk_secure_entry_set_activates_default(GtkSecureEntry * entry,
+				       gboolean setting);
+gboolean
+gtk_secure_entry_get_activates_default(GtkSecureEntry * entry);
+
+void
+gtk_secure_entry_set_width_chars(GtkSecureEntry * entry, gint n_chars);
+gint
+gtk_secure_entry_get_width_chars(GtkSecureEntry * entry);
+
+/* Somewhat more convenient than the GtkEditable generic functions
+ */
+void
+gtk_secure_entry_set_text(GtkSecureEntry * entry, const gchar * text);
+/* returns a reference to the text */
+G_CONST_RETURN gchar *
+gtk_secure_entry_get_text(GtkSecureEntry * entry);
+
+PangoLayout *
+gtk_secure_entry_get_layout(GtkSecureEntry * entry);
+void
+gtk_secure_entry_get_layout_offsets(GtkSecureEntry * entry,
+				    gint * x, gint * y);
+
+#ifdef __cplusplus
+}
+#endif				/* __cplusplus */
+
+
+#endif				/* __GTK_SECURE_ENTRY_H__ */