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/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2004 Richard Wilson <not_ginger_matt@users.sourceforge.net>
*/
/** \file
* Interactive help (implementation).
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "oslib/help.h"
#include "oslib/wimp.h"
#include "netsurf/riscos/gui.h"
#include "netsurf/riscos/help.h"
#include "netsurf/utils/messages.h"
#include "netsurf/utils/log.h"
/* Current prefixes:
HelpB Browser window
HelpI Iconbar menu
HelpM Browser window menu
HelpT Toolbar window
HelpS Status window
The prefixes are followed by either the icon number (eg 'HelpT7'), or a series
of numbers representing the menu structure (eg 'HelpM3-1-2').
*/
static void ro_gui_interactive_help_broadcast(wimp_message *message, char *token);
/**
* Attempts to process an interactive help message request
*
* \param message the request message
*/
void ro_gui_interactive_help_request(wimp_message *message) {
char message_token[32];
char menu_buffer[4];
wimp_selection menu_tree;
help_full_message_request *message_data;
wimp_w window;
wimp_i icon;
gui_window *g;
unsigned int index;
/* Ensure we have a help request
*/
if ((!message) || (message->action != message_HELP_REQUEST)) return;
/* Initialise the basic token to a null byte
*/
message_token[0] = 0x00;
/* Get the message data
*/
message_data = (help_full_message_request *)message;
window = message_data->w;
icon = message_data->i;
/* Check if we have a browser window, toolbar window or status window
*/
g = ro_gui_window_lookup(window);
if (g) {
if (g->window == window) {
sprintf(message_token, "HelpB%i", (int)icon);
} else if ((g->data.browser.toolbar) &&
(g->data.browser.toolbar->toolbar_handle == window)) {
sprintf(message_token, "HelpT%i", (int)icon);
} else if ((g->data.browser.toolbar) &&
(g->data.browser.toolbar->status_handle == window)) {
sprintf(message_token, "HelpS%i", (int)icon);
}
}
/* If we've managed to find something so far then we broadcast it
*/
if (message_token[0] != 0x00) {
ro_gui_interactive_help_broadcast(message, &message_token[0]);
return;
}
/* As a last resort, check for menu help.
*/
if (xwimp_get_menu_state((wimp_menu_state_flags)1,
&menu_tree,
window, icon)) return;
if (menu_tree.items[0] == -1) return;
/* Set the prefix
*/
if (current_menu == iconbar_menu) {
sprintf(message_token, "HelpI");
} else if (current_menu == browser_menu) {
sprintf(message_token, "HelpM");
} else {
return;
}
/* Decode the menu
*/
index = 0;
while (menu_tree.items[index] != -1) {
if (index == 0) {
sprintf(menu_buffer, "%i", menu_tree.items[index]);
} else {
sprintf(menu_buffer, "-%i", menu_tree.items[index]);
}
strcat(message_token, menu_buffer);
index++;
}
/* Finally, broadcast the menu help
*/
ro_gui_interactive_help_broadcast(message, &message_token[0]);
}
/**
* Broadcasts a help reply
*
* \param message the original request message
* \param token the token to look up
*/
static void ro_gui_interactive_help_broadcast(wimp_message *message, char *token) {
char *translated_token;
help_full_message_reply *reply;
/* Check if the message exists
*/
translated_token = (char *)messages_get(token);
if (translated_token == token) return;
/* Copy our message string
*/
reply = (help_full_message_reply *)message;
reply->reply[235] = 0;
strncpy(reply->reply, translated_token, 235);
/* Broadcast the help reply
*/
reply->size = 256;
reply->action = message_HELP_REPLY;
reply->your_ref = reply->my_ref;
wimp_send_message(wimp_USER_MESSAGE, reply, reply->sender);
}
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