ROX-Filer/src/bind.c

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * Copyright (C) 2001, the ROX-Filer team.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 /* bind.c - converts user gestures (clicks, etc) into actions */
  23
  24 #include "config.h"
  25
  26 #include <stdlib.h>
  27
  28 #include "global.h"
  29
  30 #include "options.h"
  31 #include "bind.h"
  32
  33 gboolean o_new_window_on_1 = FALSE;
  34 static gboolean o_menu_button = 3;
  35 static gboolean o_single_click = TRUE;
  36
  37 /* Static prototypes */
  38 static void update_options(void);
  39
  40 /****************************************************************
  41  *                      EXTERNAL INTERFACE                      *
  42  ****************************************************************/
  43
  44 void bind_init(void)
  45 {
  46         option_add_int("bind_new_button_1", o_new_window_on_1, NULL);
  47         option_add_int("bind_menu_button_2", FALSE, NULL);
  48         option_add_int("bind_single_click", o_single_click, NULL);
  49
  50         option_add_notify(update_options);
  51 }
  52
  53 /* Call this when a button event occurs and you want to know what
  54  * to do.
  55  */
  56 BindAction bind_lookup_bev(BindContext context, GdkEventButton *event)
  57 {
  58         gint    b = event->button;
  59         gboolean shift = (event->state & GDK_SHIFT_MASK) != 0;
  60         gboolean ctrl = (event->state & GDK_CONTROL_MASK) != 0;
  61         gboolean icon  = context == BIND_PINBOARD_ICON ||
  62                                 context == BIND_PANEL_ICON;
  63         gboolean item = icon || context == BIND_DIRECTORY_ICON;
  64         gboolean background = context == BIND_PINBOARD ||
  65                                 context == BIND_PANEL ||
  66                                 context == BIND_DIRECTORY;
  67         gboolean press = event->type == GDK_BUTTON_PRESS;
  68         gboolean release = event->type == GDK_BUTTON_RELEASE;
  69         gboolean select = event->button == 1; /* (old RISC OS names) */
  70         gboolean adjust = event->button != 1;
  71
  72         gboolean dclick = event->type == GDK_2BUTTON_PRESS;
  73         gboolean dclick_mode =
  74                 (context == BIND_DIRECTORY_ICON && !o_single_click);
  75
  76         if (b > 3)
  77                 return ACT_IGNORE;
  78
  79         if (b == o_menu_button)
  80                 return press ? ACT_POPUP_MENU : ACT_IGNORE;
  81
  82         if (item && dclick && dclick_mode)
  83                 return shift ? ACT_EDIT_ITEM : ACT_OPEN_ITEM;
  84
  85         if (dclick && context == BIND_DIRECTORY)
  86                 return ACT_RESIZE;
  87
  88         if (!press)
  89         {
  90                 if (release && item && (!dclick_mode) && (!ctrl) &&
  91                         (select || (adjust && context == BIND_DIRECTORY_ICON)))
  92                         return shift ? ACT_EDIT_ITEM : ACT_OPEN_ITEM;
  93                 return ACT_IGNORE;
  94         }
  95
  96         if (background)
  97         {
  98                 gboolean clear = (!ctrl) && select;
  99
 100                 if (context == BIND_DIRECTORY)
 101                         return clear ? ACT_LASSO_CLEAR : ACT_LASSO_MODIFY;
 102
 103                 if (context == BIND_PANEL)
 104                         return clear ? ACT_SLIDE_CLEAR_PANEL : ACT_SLIDE_PANEL;
 105
 106                 return clear ? ACT_CLEAR_SELECTION : ACT_IGNORE;
 107         }
 108
 109         if (ctrl || (adjust && dclick_mode))
 110                 return ACT_PRIME_AND_TOGGLE;
 111
 112         if (icon && adjust)
 113                 return ACT_MOVE_ICON;
 114
 115         return dclick_mode ? ACT_PRIME_AND_SELECT : ACT_PRIME_FOR_DND;
 116 }
 117
 118 /****************************************************************
 119  *                      INTERNAL FUNCTIONS                      *
 120  ****************************************************************/
 121
 122 static void update_options(void)
 123 {
 124         o_new_window_on_1 = option_get_int("bind_new_button_1");
 125         o_menu_button = option_get_int("bind_menu_button_2") ? 2 : 3;
 126         o_single_click = option_get_int("bind_single_click");
 127 }
 128