* New string property subtype: PASSWORD

When this new subtypes is used, then string of property is hidden using
asterisks, e.g.: mysecretpassword -> ****************

This code was reviewed and modified by Brecht. Thanks very much:
 - https://codereview.appspot.com/6713044/

This new subtype of string property is intended mostly for Add-on developers
writing Add-on which communicates with some server (http, sql, ftp, verse,
etc.). When this server requires user authentication and user has to type
username and password, then current API didn't allow to type 'hidden' password,
e.g. when you want to demonstrate this script, then everybody can see this
security password. Some examples of Add-on which could use this new subtype:
 - On-line database of textures
 - Integration of render farm
 - Integration of Verse

Security Notes:
 - You can copy paste hiddent string of property from text input using (Ctrl-C, Ctrl-V),
but you can do this in other GUI toolkits too (this behavior it is widely used).
 - Text of string property is stored in plain text, but it is widely used in other
GUI toolkits (Qt, Gtk, etc.).

Simple examples:
 - https://dl.dropbox.com/u/369894/draw_op_passwd.py
 - https://dl.dropbox.com/u/369894/blender-password.png

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/editors/interface/interface_intern.h b/source/blender/editors/interface/interface_intern.h
index b4b0686d6fc..98b75060aa8 100644
--- a/source/blender/editors/interface/interface_intern.h
+++ b/source/blender/editors/interface/interface_intern.h
@@ -160,7 +160,8 @@ struct uiBut {
 	int flag, drawflag;
 	eButType         type;
 	eButPointerType  pointype;
-	short bit, bitnr, retval, strwidth, ofs, pos, selsta, selend, alignnr;
+	short bit, bitnr, retval, strwidth, alignnr;
+	short ofs, pos, selsta, selend;
 
 	char *str;
 	char strdata[UI_MAX_NAME_STR];
@@ -484,6 +485,7 @@ extern void ui_button_activate_do(struct bContext *C, struct ARegion *ar, uiBut
 extern void ui_button_active_free(const struct bContext *C, uiBut *but);
 extern int ui_button_is_active(struct ARegion *ar);
 extern int ui_button_open_menu_direction(uiBut *but);
+extern void ui_button_text_password_hide(char password_str[UI_MAX_DRAW_STR], uiBut *but, int restore);
 
 /* interface_widgets.c */
 void ui_draw_anti_tria(float x1, float y1, float x2, float y2, float x3, float y3);