ppokorny
00cc9fca23
as argument introducers. in 0.4-pre10, these were changed
from foo to -foo and this broke many clients. This change
should fix that and be backward/forward compatible.
+ Added a noop function to the protocol. This is useful for writing
shell script clients of LCDproc.
+ Changed the shared sock_send_string function to NOT send the
ending NUL ('\0') byte with the string. This was confusing
in Perl clients which saw NUL's as the first character of
each reply. WARNING: The LCDPROC client depended on this
behavior, your client may too. Use the newline instead.
See the code in clients/lcdproc/main.c (look for "switch(buf[i])")
to see one way to handle this. This should allow new clients
to connect to old servers and vice-versa.
+ Messed with include structure in .c files. It should no longer
be necessary to specify ../.. to get to shared code headers.
Also, since we are using automake, the global config.h can be
found with just #include "config.h" as it's location is included
in a -I to the compilers. As a result "make distcheck" now works.
130 lines
2.7 KiB
C
130 lines
2.7 KiB
C
/*
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input.c
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Handles keypad (and other?) input from the user.
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Currently, the keys are as follows:
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Context Key Function
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------- --- --------
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Normal "normal" context is handled in this source file.
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A Pause/Continue
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B Back(Go to previous screen)
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C Forward(Go to next screen)
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D Open main menu
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E-Z Sent to client, if any; ignored otherwise
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(menu keys are not handled here, but in the menu code)
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Menu
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A Enter/select
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B Up/Left
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C Down/Right
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D Exit/Cancel
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E-Z Ignored
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "shared/sockets.h"
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#include "shared/debug.h"
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#include "drivers/lcd.h"
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#include "client_data.h"
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#include "clients.h"
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#include "screen.h"
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#include "widget.h"
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#include "screenlist.h"
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#include "menus.h"
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#include "input.h"
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int server_input (int key);
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// FIXME! The server tends to crash when "E" is pressed.. (?!)
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// (but only when the joystick driver is the last one on the list...)
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// Checks for keypad input, and dispatches it
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int
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handle_input ()
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{
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char str[256];
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int key;
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screen *s;
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widget *w;
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client *c;
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key = lcd.getkey ();
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if (!key)
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return 0;
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debug ("handle_input(%c)\n", (char) key);
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if (key) {
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// TODO: Interpret and translate keys!
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// Give current screen a shot at the key first
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s = screenlist_current ();
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w = widget_find( s, KEYS_WIDGETID );
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if( s->parent && w && w->text && strchr( w->text, key ) ) {
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// This screen wants this key. Tell it we got one
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sprintf(str, "key %c\n", key);
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sock_send_string(s->parent->sock, str);
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// Nobody else gets this key
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} else {
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// Give key to clients who want it
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c = (client *)LL_GetFirst(clients);
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while(c) {
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// If the client should have this keypress...
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if( c->data->client_keys && strchr(c->data->client_keys, key) ) {
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// Send keypress to client
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sprintf(str, "key %c\n", key);
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sock_send_string(c->sock, str);
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};
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c = (client *)LL_GetNext(clients);
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} // while clients
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// Give server a shot at all keys
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server_input (key);
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}
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};
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return 0;
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}
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int
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server_input (int key)
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{
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debug ("server_input(%c)\n", (char) key);
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switch (key) {
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case 'A':
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if (screenlist_action == SCR_HOLD)
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screenlist_action = 0;
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else
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screenlist_action = SCR_HOLD;
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break;
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case 'B':
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screenlist_action = SCR_BACK;
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screenlist_prev ();
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break;
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case 'C':
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screenlist_action = SCR_SKIP;
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screenlist_next ();
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break;
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case 'D':
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debug ("got the menu key!\n");
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server_menu ();
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break;
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default:
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debug ("server_input: Unused key \"%c\" (%i)\n", (char) key, key);
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break;
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}
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return 0;
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}
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