plugins/mouse/mouseparse.c

   1 #include "kernel/action.h"
   2 #include "kernel/parse.h"
   3 #include "kernel/prop.h"
   4 #include "mouse.h"
   5
   6 void mouseparse(ParseToken *token)
   7 {
   8     static char *top = NULL;
   9     static char *context = NULL, *button = NULL;
  10     static char *arg_str = NULL;
  11     static int arg_int = 0;
  12     static MouseAction event = -1;
  13     static Action *action = NULL;
  14     static gboolean err = FALSE;
  15
  16     if (err) {
  17         if (token->type == TOKEN_NEWLINE)
  18             err = FALSE;
  19         /* just fall through and free the token */
  20     } else if (top == NULL) {
  21         if (token->type == TOKEN_IDENTIFIER &&
  22             !g_ascii_strcasecmp("mbind", token->data.identifier)) {
  23             top = token->data.identifier;
  24             return;
  25         } else {
  26             yyerror("syntax error (expected mbind)");
  27             err = TRUE;
  28         }
  29     } else if (context == NULL) {
  30         if (token->type == TOKEN_IDENTIFIER) {
  31             context = token->data.identifier;
  32             return;
  33         } else {
  34             yyerror("syntax error (expected Key)");
  35             err = TRUE;
  36         }
  37     } else if (event == (unsigned) -1) {
  38         if (token->type == TOKEN_IDENTIFIER) {
  39             if (!g_ascii_strcasecmp("press", token->data.identifier))
  40                 event = MouseAction_Press;
  41             else if (!g_ascii_strcasecmp("release", token->data.identifier))
  42                 event = MouseAction_Release;
  43             else if (!g_ascii_strcasecmp("click", token->data.identifier))
  44                 event = MouseAction_Click;
  45             else if (!g_ascii_strcasecmp("doubleclick",token->data.identifier))
  46                 event = MouseAction_DClick;
  47             else if (!g_ascii_strcasecmp("drag", token->data.identifier))
  48                 event = MouseAction_Motion;
  49             if (event != (unsigned) -1)
  50                 return;
  51             else {
  52                 yyerror("invalid event");
  53                 err = TRUE;
  54             }
  55         } else {
  56             yyerror("syntax error (expected event)");
  57             err = TRUE;
  58         }
  59     } else if (button == NULL) {
  60         if (token->type == TOKEN_IDENTIFIER) {
  61             button = token->data.identifier;
  62             return;
  63         } else {
  64             yyerror("syntax error (expected button)");
  65             err = TRUE;
  66         }
  67     } else if (action == NULL) {
  68         if (token->type == TOKEN_IDENTIFIER) {
  69             action = action_from_string(token->data.identifier);
  70
  71             /* check for valid actions for motion events */
  72             if (event == MouseAction_Motion) {
  73                 if (action && (action->func != action_moveresize ||
  74                                action->data.moveresize.corner ==
  75                                prop_atoms.net_wm_moveresize_move_keyboard ||
  76                                action->data.moveresize.corner ==
  77                                prop_atoms.net_wm_moveresize_size_keyboard)) {
  78                     action_free(action);
  79                     action = NULL;
  80                 }
  81             } else {
  82                 if (action && action->func == action_moveresize &&
  83                     action->data.moveresize.corner !=
  84                     prop_atoms.net_wm_moveresize_move_keyboard &&
  85                     action->data.moveresize.corner !=
  86                     prop_atoms.net_wm_moveresize_size_keyboard) {
  87                     action_free(action);
  88                     action = NULL;
  89                 }
  90             }
  91
  92             if (action != NULL) {
  93                 return;
  94             } else {
  95                 yyerror("invalid action");
  96                 err = TRUE;
  97             }
  98         } else {
  99             yyerror("syntax error (expected action)");
 100             err = TRUE;
 101         }
 102     } else if (token->type == TOKEN_STRING) {
 103         arg_str = token->data.string;
 104         return;
 105     } else if (token->type == TOKEN_INTEGER) {
 106         arg_int = token->data.integer;
 107         return;
 108     } else if (token->type != TOKEN_NEWLINE) {
 109         yyerror("syntax error (unexpected trailing token)");
 110     } else {
 111
 112         /* these use the argument */
 113         if (action->func == action_execute || action->func == action_restart)
 114             action->data.execute.path = g_strdup(arg_str);
 115         else if (action->func == action_showmenu)
 116             action->data.showmenu.name = g_strdup(arg_str);
 117         if ((action->func == action_desktop ||
 118              action->func == action_send_to_desktop) &&
 119             arg_int)
 120             action->data.desktop.desk = (unsigned) arg_int - 1;
 121         if (action->func == action_move_relative_horz ||
 122             action->func == action_move_relative_vert ||
 123             action->func == action_resize_relative_horz ||
 124             action->func == action_resize_relative_vert)
 125             action->data.relative.delta = arg_int;
 126
 127         if (mbind(button, context, event, action))
 128             action = NULL; /* don't free this if mbind succeeds */
 129         else
 130             yyerror("failed to add mouse binding");
 131     }
 132
 133     g_free(top); top = NULL;
 134     g_free(context); context = NULL;
 135     g_free(button); button = NULL;
 136     g_free(arg_str); arg_str = NULL;
 137     arg_int = 0;
 138     event = -1;
 139     action_free(action); action = NULL;
 140     parse_free_token(token);
 141 }