428 lines
13 KiB
C
428 lines
13 KiB
C
/**
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* \file
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* The program handler, used for loading programs and starting the
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* screensaver.
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* \author Adam Dunkels <adam@dunkels.com>
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*
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* The Contiki program handler is responsible for the Contiki menu and
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* the desktop icons, as well as for loading programs and displaying a
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* dialog with a message telling which program that is loading.
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*
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* The program handler also is responsible for starting the
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* screensaver when the CTK detects that it should be started.
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*/
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/*
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* Copyright (c) 2003, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki desktop OS
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*
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* $Id: program-handler.c,v 1.3 2006/08/30 22:40:58 oliverschmidt Exp $
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*
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "contiki.h"
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#include "ctk/ctk.h"
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#include "ctk/ctk-draw.h"
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#include "program-handler.h"
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/* Menus */
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static struct ctk_menu contikimenu = {NULL, "Contiki", 7, 0, 0};
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#ifndef PROGRAM_HANDLER_CONF_MAX_NUMDSCS
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#define MAX_NUMDSCS 10
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#else /* PROGRAM_HANDLER_CONF_MAX_NUMDSCS */
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#define MAX_NUMDSCS PROGRAM_HANDLER_CONF_MAX_NUMDSCS
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#endif /* PROGRAM_HANDLER_CONF_MAX_NUMDSCS */
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static struct dsc *contikidsc[MAX_NUMDSCS];
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static unsigned char contikidsclast = 0;
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#ifndef PROGRAM_HANDLER_CONF_QUIT_MENU
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#define QUIT_MENU 0
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#else /* PROGRAM_HANDLER_CONF_QUIT_MENU */
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#define QUIT_MENU PROGRAM_HANDLER_CONF_QUIT_MENU
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#endif /* PROGRAM_HANDLER_CONF_QUIT_MENU */
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#if QUIT_MENU
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static unsigned char quitmenuitem;
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/* "Quit" dialog */
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static struct ctk_window quitdialog;
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static struct ctk_label quitdialoglabel =
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{CTK_LABEL(2, 1, 20, 1, "Really quit Contiki?")};
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static struct ctk_button quityesbutton =
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{CTK_BUTTON(4, 3, 3, "Yes")};
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static struct ctk_button quitnobutton =
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{CTK_BUTTON(16, 3, 2, "No")};
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#endif /* QUIT_MENU */
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#if WITH_LOADER_ARCH
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/* "Run..." window */
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static struct ctk_window runwindow;
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static unsigned char runmenuitem;
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static struct ctk_label namelabel =
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{CTK_LABEL(0, 0, 13, 1, "Program name:")};
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static char name[31];
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static struct ctk_textentry nameentry =
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{CTK_TEXTENTRY(0, 1, 14, 1, name, 30)};
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static struct ctk_button loadbutton =
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{CTK_BUTTON(10, 2, 4, "Load")};
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static struct ctk_window loadingdialog;
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static struct ctk_label loadingmsg =
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{CTK_LABEL(0, 0, 8, 1, "Starting")};
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static struct ctk_label loadingname =
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{CTK_LABEL(9, 0, 16, 1, name)};
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static struct ctk_window errordialog;
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static struct ctk_label errormsg =
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{CTK_LABEL(0, 1, 22, 1, "Error loading program:")};
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static char errorfilename[22];
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static struct ctk_label errorfilelabel =
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{CTK_LABEL(0, 3, 22, 1, errorfilename)};
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static struct ctk_label errortype =
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{CTK_LABEL(4, 5, 16, 1, "")};
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static struct ctk_button errorokbutton =
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{CTK_BUTTON(9, 7, 2, "Ok")};
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#endif /* WITH_LOADER_ARCH */
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PROCESS(program_handler_process, "Program handler");
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static const char * const errormsgs[] = {
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"Ok",
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"Read error",
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"Header error",
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"OS error",
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"Data format error",
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"Out of memory",
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"File not found",
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"No loader"
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};
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#define LOADER_EVENT_LOAD 1
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#define LOADER_EVENT_DISPLAY_NAME 2
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static char *displayname;
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#if CTK_CONF_SCREENSAVER
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char program_handler_screensaver[20];
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#endif /* CTK_CONF_SCREENSAVER */
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/*-----------------------------------------------------------------------------------*/
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/**
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* Add a program to the program handler.
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*
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* \param dsc The DSC description structure for the program to be added.
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*
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* \param menuname The name that the program should have in the
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* Contiki menu.
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*
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* \param desktop Flag which specifies if the program should show up
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* as an icon on the desktop or not.
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*/
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/*-----------------------------------------------------------------------------------*/
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void
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program_handler_add(struct dsc *dsc, char *menuname,
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unsigned char desktop)
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{
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contikidsc[contikidsclast++] = dsc;
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ctk_menuitem_add(&contikimenu, menuname);
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if(desktop) {
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CTK_ICON_ADD(dsc->icon, &program_handler_process);
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}
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}
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/*-----------------------------------------------------------------------------------*/
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/**
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* Initializes the program handler.
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*
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* Is called by the initialization before any programs have been added
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* with program_handler_add().
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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#ifdef WITH_LOADER_ARCH
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#define NUM_PNARGS 6
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#define NAMELEN 32
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struct pnarg {
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char name[NAMELEN];
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char *arg;
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};
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static struct pnarg pnargs[NUM_PNARGS];
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static struct pnarg *
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pnarg_copy(char *name, char *arg)
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{
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char i;
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struct pnarg *pnargsptr;
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pnargsptr = pnargs;
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/* Allocate a place in the loadernames table. */
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for(i = 0; i < NUM_PNARGS; ++i) {
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if(*(pnargsptr->name) == 0) {
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strncpy(pnargsptr->name, name, NAMELEN);
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pnargsptr->arg = arg;
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return pnargsptr;
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}
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++pnargsptr;
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}
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return NULL;
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}
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static void
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pnarg_free(struct pnarg *pn)
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{
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*(pn->name) = 0;
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}
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#endif /* WITH_LOADER_ARCH */
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/*-----------------------------------------------------------------------------------*/
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/**
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* Loads a program and displays a dialog telling the user about it.
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*
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* \param name The name of the program to be loaded.
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*
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* \param arg An argument which is passed to the new process when it
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* is loaded.
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*/
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/*-----------------------------------------------------------------------------------*/
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void
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program_handler_load(char *name, char *arg)
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{
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#ifdef WITH_LOADER_ARCH
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struct pnarg *pnarg;
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pnarg = pnarg_copy(name, arg);
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if(pnarg != NULL) {
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process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, pnarg);
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} else {
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ctk_label_set_text(&errortype, "Out of memory");
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ctk_dialog_open(&errordialog);
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}
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/* ctk_redraw(); */
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/* ctk_window_redraw(&loadingdialog);*/
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#endif /* WITH_LOADER_ARCH */
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}
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#ifdef WITH_LOADER_ARCH
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#define RUN(prg, name, arg) program_handler_load(prg, arg)
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#else /* WITH_LOADER_ARCH */
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#define RUN(prg, process, arg) process_start(process, arg)
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#endif /* WITH_LOADER_ARCH */
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/*-----------------------------------------------------------------------------------*/
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/**
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* Configures the name of the screensaver to be loaded when
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* appropriate.
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*
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* \param name The name of the screensaver or NULL if no screensaver
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* should be used.
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*/
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/*-----------------------------------------------------------------------------------*/
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#if CTK_CONF_SCREENSAVER
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void
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program_handler_setscreensaver(char *name)
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{
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if(name == NULL) {
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program_handler_screensaver[0] = 0;
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} else {
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strncpy(program_handler_screensaver, name, sizeof(program_handler_screensaver));
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}
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}
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#endif /* CTK_CONF_SCREENSAVER */
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/*-----------------------------------------------------------------------------------*/
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static void
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make_windows(void)
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{
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#ifdef WITH_LOADER_ARCH
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ctk_window_new(&runwindow, 16, 3, "Run");
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CTK_WIDGET_ADD(&runwindow, &namelabel);
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CTK_WIDGET_ADD(&runwindow, &nameentry);
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CTK_WIDGET_ADD(&runwindow, &loadbutton);
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CTK_WIDGET_FOCUS(&runwindow, &nameentry);
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ctk_dialog_new(&loadingdialog, 25, 1);
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CTK_WIDGET_ADD(&loadingdialog, &loadingmsg);
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CTK_WIDGET_ADD(&loadingdialog, &loadingname);
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ctk_dialog_new(&errordialog, 22, 8);
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CTK_WIDGET_ADD(&errordialog, &errormsg);
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CTK_WIDGET_ADD(&errordialog, &errorfilelabel);
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CTK_WIDGET_ADD(&errordialog, &errortype);
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CTK_WIDGET_ADD(&errordialog, &errorokbutton);
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CTK_WIDGET_FOCUS(&errordialog, &errorokbutton);
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#endif /* WITH_LOADER_ARCH */
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}
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/*-----------------------------------------------------------------------------------*/
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PROCESS_THREAD(program_handler_process, ev, data)
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{
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#ifdef WITH_LOADER_ARCH
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unsigned char err;
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struct dsc *dsc;
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#endif /* WITH_LOADER_ARCH */
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unsigned char i;
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struct dsc **dscp;
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PROCESS_BEGIN();
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/* Create the menus */
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ctk_menu_add(&contikimenu);
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#if WITH_LOADER_ARCH
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runmenuitem = ctk_menuitem_add(&contikimenu, "Run program...");
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make_windows();
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#endif /* WITH_LOADER_ARCH */
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#if QUIT_MENU
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quitmenuitem = ctk_menuitem_add(&contikimenu, "Quit");
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#endif /* QUIT_MENU */
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displayname = NULL;
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#if CTK_CONF_SCREENSAVER
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program_handler_screensaver[0] = 0;
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#endif /* CTK_CONF_SCREENSAVER */
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ev == ctk_signal_button_activate) {
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#ifdef WITH_LOADER_ARCH
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if(data == (process_data_t)&loadbutton) {
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ctk_window_close(&runwindow);
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program_handler_load(name, NULL);
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} else if(data == (process_data_t)&errorokbutton) {
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ctk_dialog_close();
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}
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#endif /* WITH_LOADER_ARCH */
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#if QUIT_MENU
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if(data == (process_data_t)&quityesbutton) {
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ctk_draw_init();
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exit(EXIT_SUCCESS);
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} else if(data == (process_data_t)&quitnobutton) {
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ctk_dialog_close();
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}
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#endif /* QUIT_MENU */
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dscp = &contikidsc[0];
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for(i = 0; i < CTK_CONF_MAXMENUITEMS; ++i) {
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if(*dscp != NULL &&
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data == (process_data_t)(*dscp)->icon) {
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RUN((*dscp)->prgname, (*dscp)->process, NULL);
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break;
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}
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++dscp;
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}
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} else if(ev == ctk_signal_menu_activate) {
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if((struct ctk_menu *)data == &contikimenu) {
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#if WITH_LOADER_ARCH
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dsc = contikidsc[contikimenu.active];
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if(dsc != NULL) {
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RUN(dsc->prgname, dsc->process, NULL);
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} else if(contikimenu.active == runmenuitem) {
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make_windows();
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ctk_window_close(&runwindow);
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ctk_window_open(&runwindow);
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CTK_WIDGET_FOCUS(&runwindow, &nameentry);
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}
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#else /* WITH_LOADER_ARCH */
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if(contikidsc[contikimenu.active] != NULL) {
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RUN(contikidsc[contikimenu.active]->prgname,
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contikidsc[contikimenu.active]->process,
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NULL);
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}
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#endif /* WITH_LOADER_ARCH */
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#if QUIT_MENU
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if(contikimenu.active == quitmenuitem) {
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ctk_dialog_new(&quitdialog, 24, 5);
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CTK_WIDGET_ADD(&quitdialog, &quitdialoglabel);
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CTK_WIDGET_ADD(&quitdialog, &quityesbutton);
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CTK_WIDGET_ADD(&quitdialog, &quitnobutton);
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CTK_WIDGET_FOCUS(&quitdialog, &quitnobutton);
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ctk_dialog_open(&quitdialog);
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}
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#endif /* QUIT_MENU */
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}
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#if CTK_CONF_SCREENSAVER
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} else if(ev == ctk_signal_screensaver_start) {
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#if WITH_LOADER_ARCH
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if(program_handler_screensaver[0] != 0) {
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program_handler_load(program_handler_screensaver, NULL);
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}
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#endif /* WITH_LOADER_ARCH */
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#endif /* CTK_CONF_SCREENSAVER */
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} else if(ev == LOADER_EVENT_DISPLAY_NAME) {
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#if WITH_LOADER_ARCH
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if(displayname == NULL) {
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make_windows();
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ctk_label_set_text(&loadingname, ((struct pnarg *)data)->name);
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ctk_dialog_open(&loadingdialog);
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process_post(&program_handler_process, LOADER_EVENT_LOAD, data);
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displayname = data;
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} else {
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/* Try again. */
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process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, data);
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}
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#endif /* WITH_LOADER_ARCH */
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} else if(ev == LOADER_EVENT_LOAD) {
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#if WITH_LOADER_ARCH
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if(displayname == data) {
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ctk_dialog_close();
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displayname = NULL;
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log_message("Loading ", ((struct pnarg *)data)->name);
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err = LOADER_LOAD(((struct pnarg *)data)->name,
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((struct pnarg *)data)->arg);
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if(err != LOADER_OK) {
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make_windows();
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errorfilename[0] = '"';
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strncpy(errorfilename + 1, ((struct pnarg *)data)->name,
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sizeof(errorfilename) - 2);
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errorfilename[1 + strlen(((struct pnarg *)data)->name)] = '"';
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ctk_label_set_text(&errortype, (char *)errormsgs[err]);
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ctk_dialog_open(&errordialog);
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log_message((char *)errormsgs[err], errorfilename);
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}
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pnarg_free(data);
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} else {
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/* Try again. */
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process_post(&program_handler_process, LOADER_EVENT_DISPLAY_NAME, data);
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}
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#endif /* WITH_LOADEER_ARCH */
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}
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}
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PROCESS_END();
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}
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/*-----------------------------------------------------------------------------------*/
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