ToolsMenu/broker.c

/*
ToolsMenu - Add tools to the Workbench Tools menu

Copyright (C) 2015, 2018  Kim Fastrup Larsen

This program is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, either ver-
sion 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be use-
ful, but WITHOUT ANY WARRANTY; without even the implied war-
ranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

You should have received a copy of the GNU General Public Li-
cense along with this program. If not, see
<http://www.gnu.org/licenses/>.

The author can be contacted on <kimflarsen@hotmail.com>
*/

#include <dos/dos.h>
#include <libraries/commodities.h>

#include <clib/commodities_protos.h>
#include <clib/exec_protos.h>

#ifdef USE_PRAGMAS
#include <proto/commodities.h>
#include <proto/exec.h>
#endif

#include <stdlib.h>
#include <strings.h>

#define CATCOMP_NUMBERS

#include "args.h"
#include "broker.h"
#include "catalog.h"
#include "common.h"
#include "cx.h"
#include "error.h"
#include "strings.h"

static struct MsgPort *broker_port;
static CxObj *broker;

ULONG broker_set_up()
{
    struct NewBroker new_broker;
    LONG error;
    CxObj *filter;

    if ((broker_port = CreateMsgPort()) == NULL)
        exit(RETURN_FAIL);
    memset(&new_broker, 0, sizeof new_broker);
    new_broker.nb_Version = NB_VERSION;
    new_broker.nb_Name = APP_NAME;
    new_broker.nb_Title = TITLE;
    new_broker.nb_Descr = get_string(MSG_DESCRIPTION);
    new_broker.nb_Unique = NBU_UNIQUE | NBU_NOTIFY;
    new_broker.nb_Flags = COF_SHOW_HIDE;
    new_broker.nb_Pri = args.cx_priority;
    new_broker.nb_Port = broker_port;
    if ((broker = CxBroker(&new_broker, &error)) == NULL)
        exit((error == CBERR_DUP) ? RETURN_OK : RETURN_FAIL);
    if ((filter = CxFilter(args.cx_popkey)) == NULL)
        exit(RETURN_FAIL);
    AttachCxObj(broker, filter);
    AttachCxObj(filter, CxSender(broker_port, 0));
    AttachCxObj(filter, CxTranslate(NULL));
    if ((error = CxObjError(filter)) != 0) {
        if (error == COERR_BADFILTER) {
            error_message(get_string(MSG_ERR_HOTKEY), NULL);
            exit(RETURN_ERROR);
        } else
            exit(RETURN_FAIL);
    }
    ActivateCxObj(broker, 1);
    return 1UL << broker_port->mp_SigBit;
}

static void handle_command(ULONG msg_id)
{
    switch (msg_id) {
    case CXCMD_DISABLE:
        ActivateCxObj(broker, 0);
        cx_disable();
        break;
    case CXCMD_ENABLE:
        ActivateCxObj(broker, 1);
        cx_enable();
        break;
    case CXCMD_KILL:
        cx_quit();
        break;
    case CXCMD_UNIQUE:
    case CXCMD_APPEAR:
        cx_show();
        break;
    case CXCMD_DISAPPEAR:
        cx_hide();
        break;
    }
}

void broker_handle_signal()
{
    CxMsg *msg;
    ULONG msg_type, msg_id;

    while ((msg = (CxMsg *) GetMsg(broker_port)) != NULL) {
        msg_type = CxMsgType(msg);
        msg_id = CxMsgID(msg);
        ReplyMsg((struct Message *) msg);
        switch (msg_type) {
        case CXM_IEVENT:
            /* Must be Hot Key event */
            cx_show();
            break;
        case CXM_COMMAND:
            handle_command(msg_id);
            break;
        }
    }
}

void broker_clean_up()
{
    if (broker != NULL)
        DeleteCxObjAll(broker);
    delete_port(broker_port);
}