nes-proj/apps/program-handler/program-handler.c

385 lines
11 KiB
C

/**
* \file
* The program handler, used for loading programs and starting the
* screensaver.
* \author Adam Dunkels <adam@dunkels.com>
*
* The Contiki program handler is responsible for the Contiki menu and
* the desktop icons, as well as for loading programs and displaying a
* dialog with a message telling which program that is loading.
*
* The program handler also is responsible for starting the
* screensaver when the CTK detects that it should be started.
*/
/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki desktop OS
*
* $Id: program-handler.c,v 1.2 2006/08/15 00:11:45 oliverschmidt Exp $
*
*/
#include <string.h>
#include "contiki.h"
#include "ctk/ctk.h"
#include "ctk/ctk-draw.h"
#include "program-handler.h"
/* Menus */
static struct ctk_menu contikimenu = {NULL, "Contiki", 7, 0, 0};
#ifndef PROGRAM_HANDLER_CONF_MAX_NUMDSCS
#define MAX_NUMDSCS 10
#else /* PROGRAM_HANDLER_CONF_MAX_NUMDSCS */
#define MAX_NUMDSCS PROGRAM_HANDLER_CONF_MAX_NUMDSCS
#endif /* PROGRAM_HANDLER_CONF_MAX_NUMDSCS */
static struct dsc *contikidsc[MAX_NUMDSCS];
static unsigned char contikidsclast = 0;
#if WITH_LOADER_ARCH
/* "Run..." window */
static struct ctk_window runwindow;
static unsigned char runmenuitem;
static struct ctk_label namelabel =
{CTK_LABEL(0, 0, 13, 1, "Program name:")};
static char name[31];
static struct ctk_textentry nameentry =
{CTK_TEXTENTRY(0, 1, 14, 1, name, 30)};
static struct ctk_button loadbutton =
{CTK_BUTTON(10, 2, 4, "Load")};
static struct ctk_window loadingdialog;
static struct ctk_label loadingmsg =
{CTK_LABEL(0, 0, 8, 1, "Starting")};
static struct ctk_label loadingname =
{CTK_LABEL(9, 0, 16, 1, name)};
static struct ctk_window errordialog;
static struct ctk_label errormsg =
{CTK_LABEL(0, 1, 22, 1, "Error loading program:")};
static char errorfilename[22];
static struct ctk_label errorfilelabel =
{CTK_LABEL(0, 3, 22, 1, errorfilename)};
static struct ctk_label errortype =
{CTK_LABEL(4, 5, 16, 1, "")};
static struct ctk_button errorokbutton =
{CTK_BUTTON(9, 7, 2, "Ok")};
#endif /* WITH_LOADER_ARCH */
PROCESS(program_handler_process, "Program handler");
static const char * const errormsgs[] = {
"Ok",
"Read error",
"Header error",
"OS error",
"Data format error",
"Out of memory",
"File not found",
"No loader"
};
#define LOADER_EVENT_LOAD 1
#define LOADER_EVENT_DISPLAY_NAME 2
static char *displayname;
#if CTK_CONF_SCREENSAVER
char program_handler_screensaver[20];
#endif /* CTK_CONF_SCREENSAVER */
/*-----------------------------------------------------------------------------------*/
/**
* Add a program to the program handler.
*
* \param dsc The DSC description structure for the program to be added.
*
* \param menuname The name that the program should have in the
* Contiki menu.
*
* \param desktop Flag which specifies if the program should show up
* as an icon on the desktop or not.
*/
/*-----------------------------------------------------------------------------------*/
void
program_handler_add(struct dsc *dsc, char *menuname,
unsigned char desktop)
{
contikidsc[contikidsclast++] = dsc;
ctk_menuitem_add(&contikimenu, menuname);
if(desktop) {
CTK_ICON_ADD(dsc->icon, &program_handler_process);
}
}
/*-----------------------------------------------------------------------------------*/
/**
* Initializes the program handler.
*
* Is called by the initialization before any programs have been added
* with program_handler_add().
*
*/
/*-----------------------------------------------------------------------------------*/
#ifdef WITH_LOADER_ARCH
#define NUM_PNARGS 6
#define NAMELEN 32
struct pnarg {
char name[NAMELEN];
char *arg;
};
static struct pnarg pnargs[NUM_PNARGS];
static struct pnarg *
pnarg_copy(char *name, char *arg)
{
char i;
struct pnarg *pnargsptr;
pnargsptr = pnargs;
/* Allocate a place in the loadernames table. */
for(i = 0; i < NUM_PNARGS; ++i) {
if(*(pnargsptr->name) == 0) {
strncpy(pnargsptr->name, name, NAMELEN);
pnargsptr->arg = arg;
return pnargsptr;
}
++pnargsptr;
}
return NULL;
}
static void
pnarg_free(struct pnarg *pn)
{
*(pn->name) = 0;
}
#endif /* WITH_LOADER_ARCH */
/*-----------------------------------------------------------------------------------*/
/**
* Loads a program and displays a dialog telling the user about it.
*
* \param name The name of the program to be loaded.
*
* \param arg An argument which is passed to the new process when it
* is loaded.
*/
/*-----------------------------------------------------------------------------------*/
void
program_handler_load(char *name, char *arg)
{
#ifdef WITH_LOADER_ARCH
struct pnarg *pnarg;
pnarg = pnarg_copy(name, arg);
if(pnarg != NULL) {
process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, pnarg);
} else {
ctk_label_set_text(&errortype, "Out of memory");
ctk_dialog_open(&errordialog);
}
/* ctk_redraw(); */
/* ctk_window_redraw(&loadingdialog);*/
#endif /* WITH_LOADER_ARCH */
}
#ifdef WITH_LOADER_ARCH
#define RUN(prg, name, arg) program_handler_load(prg, arg)
#else /* WITH_LOADER_ARCH */
#define RUN(prg, process, arg) process_start(process, arg)
#endif /* WITH_LOADER_ARCH */
/*-----------------------------------------------------------------------------------*/
/**
* Configures the name of the screensaver to be loaded when
* appropriate.
*
* \param name The name of the screensaver or NULL if no screensaver
* should be used.
*/
/*-----------------------------------------------------------------------------------*/
#if CTK_CONF_SCREENSAVER
void
program_handler_setscreensaver(char *name)
{
if(name == NULL) {
program_handler_screensaver[0] = 0;
} else {
strncpy(program_handler_screensaver, name, sizeof(program_handler_screensaver));
}
}
#endif /* CTK_CONF_SCREENSAVER */
/*-----------------------------------------------------------------------------------*/
static void
make_windows(void)
{
#ifdef WITH_LOADER_ARCH
ctk_window_new(&runwindow, 16, 3, "Run");
CTK_WIDGET_ADD(&runwindow, &namelabel);
CTK_WIDGET_ADD(&runwindow, &nameentry);
CTK_WIDGET_ADD(&runwindow, &loadbutton);
CTK_WIDGET_FOCUS(&runwindow, &nameentry);
ctk_dialog_new(&loadingdialog, 25, 1);
CTK_WIDGET_ADD(&loadingdialog, &loadingmsg);
CTK_WIDGET_ADD(&loadingdialog, &loadingname);
ctk_dialog_new(&errordialog, 22, 8);
CTK_WIDGET_ADD(&errordialog, &errormsg);
CTK_WIDGET_ADD(&errordialog, &errorfilelabel);
CTK_WIDGET_ADD(&errordialog, &errortype);
CTK_WIDGET_ADD(&errordialog, &errorokbutton);
CTK_WIDGET_FOCUS(&errordialog, &errorokbutton);
#endif /* WITH_LOADER_ARCH */
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(program_handler_process, ev, data)
{
#ifdef WITH_LOADER_ARCH
unsigned char err;
struct dsc *dsc;
#endif /* WITH_LOADER_ARCH */
unsigned char i;
struct dsc **dscp;
PROCESS_BEGIN();
/* Create the menus */
ctk_menu_add(&contikimenu);
#if WITH_LOADER_ARCH
runmenuitem = ctk_menuitem_add(&contikimenu, "Run program...");
make_windows();
#endif /* WITH_LOADER_ARCH */
displayname = NULL;
#if CTK_CONF_SCREENSAVER
program_handler_screensaver[0] = 0;
#endif /* CTK_CONF_SCREENSAVER */
while(1) {
PROCESS_WAIT_EVENT();
if(ev == ctk_signal_button_activate) {
#ifdef WITH_LOADER_ARCH
if(data == (process_data_t)&loadbutton) {
ctk_window_close(&runwindow);
program_handler_load(name, NULL);
} else if(data == (process_data_t)&errorokbutton) {
ctk_dialog_close();
}
#endif /* WITH_LOADER_ARCH */
dscp = &contikidsc[0];
for(i = 0; i < CTK_CONF_MAXMENUITEMS; ++i) {
if(*dscp != NULL &&
data == (process_data_t)(*dscp)->icon) {
RUN((*dscp)->prgname, (*dscp)->process, NULL);
break;
}
++dscp;
}
} else if(ev == ctk_signal_menu_activate) {
if((struct ctk_menu *)data == &contikimenu) {
#if WITH_LOADER_ARCH
dsc = contikidsc[contikimenu.active];
if(dsc != NULL) {
RUN(dsc->prgname, dsc->process, NULL);
} else if(contikimenu.active == runmenuitem) {
make_windows();
ctk_window_close(&runwindow);
ctk_window_open(&runwindow);
CTK_WIDGET_FOCUS(&runwindow, &nameentry);
}
#else /* WITH_LOADER_ARCH */
if(contikidsc[contikimenu.active] != NULL) {
RUN(contikidsc[contikimenu.active]->prgname,
contikidsc[contikimenu.active]->process,
NULL);
}
#endif /* WITH_LOADER_ARCH */
}
#if CTK_CONF_SCREENSAVER
} else if(ev == ctk_signal_screensaver_start) {
#if WITH_LOADER_ARCH
if(program_handler_screensaver[0] != 0) {
program_handler_load(program_handler_screensaver, NULL);
}
#endif /* WITH_LOADER_ARCH */
#endif /* CTK_CONF_SCREENSAVER */
} else if(ev == LOADER_EVENT_DISPLAY_NAME) {
#if WITH_LOADER_ARCH
if(displayname == NULL) {
make_windows();
ctk_label_set_text(&loadingname, ((struct pnarg *)data)->name);
ctk_dialog_open(&loadingdialog);
process_post(&program_handler_process, LOADER_EVENT_LOAD, data);
displayname = data;
} else {
/* Try again. */
process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, data);
}
#endif /* WITH_LOADER_ARCH */
} else if(ev == LOADER_EVENT_LOAD) {
#if WITH_LOADER_ARCH
if(displayname == data) {
ctk_dialog_close();
displayname = NULL;
log_message("Loading ", ((struct pnarg *)data)->name);
err = LOADER_LOAD(((struct pnarg *)data)->name,
((struct pnarg *)data)->arg);
if(err != LOADER_OK) {
make_windows();
errorfilename[0] = '"';
strncpy(errorfilename + 1, ((struct pnarg *)data)->name,
sizeof(errorfilename) - 2);
errorfilename[1 + strlen(((struct pnarg *)data)->name)] = '"';
ctk_label_set_text(&errortype, (char *)errormsgs[err]);
ctk_dialog_open(&errordialog);
log_message((char *)errormsgs[err], errorfilename);
}
pnarg_free(data);
} else {
/* Try again. */
process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, data);
}
#endif /* WITH_LOADEER_ARCH */
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/