343 lines
9.2 KiB
C
343 lines
9.2 KiB
C
/* help_dlg.c
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*
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* $Id$
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*
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* Laurent Deniel <laurent.deniel@free.fr>
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 2000 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gtk/gtk.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "epan/filesystem.h"
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#include "help_dlg.h"
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#include "text_page.h"
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#include <epan/prefs.h>
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#include "gtkglobals.h"
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#include "ui_util.h"
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#include "compat_macros.h"
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#include "dlg_utils.h"
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#include "simple_dialog.h"
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#include "webbrowser.h"
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#define HELP_DIR "help"
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#define NOTEBOOK_KEY "notebook_key"
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static void help_destroy_cb(GtkWidget *w, gpointer data);
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/*
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* Keep a static pointer to the current "Help" window, if any, so that
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* if somebody tries to do "Help->Help" while there's already a
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* "Help" window up, we just pop up the existing one, rather than
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* creating a new one.
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*/
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static GtkWidget *help_w = NULL;
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/*
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* Keep a list of text widgets and corresponding file names as well
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* (for text format changes).
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*/
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typedef struct {
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char *topic;
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char *pathname;
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GtkWidget *page;
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} help_page_t;
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static GSList *help_text_pages = NULL;
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/*
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* Helper function to show a simple help text page.
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*/
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static GtkWidget * help_page(const char *topic, const char *filename)
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{
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GtkWidget *text_page;
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char *relative_path, *absolute_path;
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help_page_t *page;
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relative_path = g_strconcat(HELP_DIR, G_DIR_SEPARATOR_S, filename, NULL);
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absolute_path = get_datafile_path(relative_path);
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text_page = text_page_new(absolute_path);
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g_free(relative_path);
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gtk_widget_show(text_page);
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page = g_malloc(sizeof (help_page_t));
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page->topic = g_strdup(topic);
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page->pathname = absolute_path;
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page->page = text_page;
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help_text_pages = g_slist_append(help_text_pages, page);
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return text_page;
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}
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/*
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* Create and show help dialog.
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*/
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void help_cb(GtkWidget *w _U_, gpointer data _U_)
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{
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GtkWidget *main_vb, *bbox, *help_nb, *close_bt, *label, *topic_vb;
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char line[4096+1]; /* XXX - size? */
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char *p;
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char *filename;
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char *help_toc_file_path;
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FILE *help_toc_file;
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if (help_w != NULL) {
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/* There's already a "Help" dialog box; reactivate it. */
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reactivate_window(help_w);
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return;
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}
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help_toc_file_path = get_datafile_path(HELP_DIR G_DIR_SEPARATOR_S "toc");
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help_toc_file = fopen(help_toc_file_path, "r");
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if (help_toc_file == NULL) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Could not open file \"%s\": %s",
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help_toc_file_path, strerror(errno));
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g_free(help_toc_file_path);
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return;
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}
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help_w = window_new_with_geom(GTK_WINDOW_TOPLEVEL, "Ethereal: Help", "help");
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gtk_window_set_default_size(GTK_WINDOW(help_w), DEF_WIDTH, DEF_HEIGHT);
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gtk_container_border_width(GTK_CONTAINER(help_w), 2);
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/* Container for each row of widgets */
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main_vb = gtk_vbox_new(FALSE, 1);
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gtk_container_border_width(GTK_CONTAINER(main_vb), 1);
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gtk_container_add(GTK_CONTAINER(help_w), main_vb);
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/* help topics container */
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help_nb = gtk_notebook_new();
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gtk_container_add(GTK_CONTAINER(main_vb), help_nb);
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OBJECT_SET_DATA(help_w, NOTEBOOK_KEY, help_nb);
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/* help topics */
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while (fgets(line, sizeof line, help_toc_file) != NULL) {
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/* Strip off line ending. */
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p = strpbrk(line, "\r\n");
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if (p == NULL)
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break; /* last line has no line ending */
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*p = '\0';
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/* {Topic title}:{filename of help file} */
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p = strchr(line, ':');
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if (p != NULL) {
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*p++ = '\0';
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filename = p;
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/*
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* "line" refers to the topic now, and "filename" refers to the
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* file name.
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*/
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topic_vb = help_page(line, filename);
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label = gtk_label_new(line);
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gtk_notebook_append_page(GTK_NOTEBOOK(help_nb), topic_vb, label);
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}
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}
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if(ferror(help_toc_file)) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Error reading file \"%s\": %s",
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help_toc_file_path, strerror(errno));
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}
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fclose(help_toc_file);
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/* Button row */
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bbox = dlg_button_row_new(GTK_STOCK_OK, NULL);
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gtk_box_pack_end(GTK_BOX(main_vb), bbox, FALSE, FALSE, 5);
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close_bt = OBJECT_GET_DATA(bbox, GTK_STOCK_OK);
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window_set_cancel_button(help_w, close_bt, window_cancel_button_cb);
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SIGNAL_CONNECT(help_w, "delete_event", window_delete_event_cb, NULL);
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SIGNAL_CONNECT(help_w, "destroy", help_destroy_cb, NULL);
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gtk_quit_add_destroy(gtk_main_level(), GTK_OBJECT(help_w));
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gtk_widget_show_all(help_w);
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window_present(help_w);
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} /* help_cb */
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/*
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* Open the help dialog and show a specific help page.
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*/
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void help_topic_cb(GtkWidget *w _U_, gpointer data) {
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gchar *topic = data;
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gchar *page_topic;
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GtkWidget *help_nb;
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GSList *help_page_ent;
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gint page_num = 0;
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help_page_t *page;
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/* show help dialog, if not already opened */
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help_cb(NULL, NULL);
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help_nb = OBJECT_GET_DATA(help_w, NOTEBOOK_KEY);
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/* find page to display */
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for (help_page_ent = help_text_pages; help_page_ent != NULL;
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help_page_ent = g_slist_next(help_page_ent))
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{
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page = (help_page_t *)help_page_ent->data;
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page_topic = page->topic;
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if (strcmp (page_topic, topic) == 0) {
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/* topic page found, switch to notebook page */
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gtk_notebook_set_page(GTK_NOTEBOOK(help_nb), page_num);
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return;
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}
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page_num++;
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}
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/* topic page not found, default (first page) will be shown */
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}
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/*
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* Help dialog is closed now.
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*/
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static void help_destroy_cb(GtkWidget *w _U_, gpointer data _U_)
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{
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GSList *help_page_ent;
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help_page_t *page;
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/* Free up the list of help pages. */
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for (help_page_ent = help_text_pages; help_page_ent != NULL;
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help_page_ent = g_slist_next(help_page_ent)) {
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page = (help_page_t *)help_page_ent->data;
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g_free(page->topic);
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g_free(page->pathname);
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g_free(page);
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}
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g_slist_free(help_text_pages);
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help_text_pages = NULL;
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/* Note that we no longer have a Help window. */
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help_w = NULL;
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}
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/**
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* Redraw all help pages, to use a new font.
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*/
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void help_redraw(void)
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{
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GSList *help_page_ent;
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help_page_t *help_page;
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if (help_w != NULL) {
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for (help_page_ent = help_text_pages; help_page_ent != NULL;
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help_page_ent = g_slist_next(help_page_ent))
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{
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help_page = (help_page_t *)help_page_ent->data;
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text_page_redraw(help_page->page, help_page->pathname);
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}
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}
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}
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void
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url_page_action(url_page_action_e action)
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{
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/* pages online at www.ethereal.com */
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switch(action) {
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case(ONLINEPAGE_HOME):
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browser_open_url ("http://www.ethereal.com");
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break;
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case(ONLINEPAGE_WIKI):
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browser_open_url ("http://wiki.ethereal.com");
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break;
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case(ONLINEPAGE_DOWNLOAD):
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browser_open_url ("http://www.ethereal.com/download.html");
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break;
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case(ONLINEPAGE_USERGUIDE):
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browser_open_url ("http://www.ethereal.com/docs/user-guide");
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break;
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case(ONLINEPAGE_FAQ):
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browser_open_url ("http://www.ethereal.com/faq.html");
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break;
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case(ONLINEPAGE_SAMPLE_FILES):
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browser_open_url ("http://wiki.ethereal.com/SampleCaptures");
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break;
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/* local manual pages */
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case(LOCALPAGE_MAN_ETHEREAL):
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browser_open_data_file("ethereal.html");
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break;
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case(LOCALPAGE_MAN_ETHEREAL_FILTER):
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browser_open_data_file("ethereal-filter.html");
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break;
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case(LOCALPAGE_MAN_TETHEREAL):
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browser_open_data_file("tethereal.html");
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break;
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case(LOCALPAGE_MAN_MERGECAP):
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browser_open_data_file("mergecap.html");
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break;
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case(LOCALPAGE_MAN_EDITCAP):
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browser_open_data_file("editcap.html");
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break;
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case(LOCALPAGE_MAN_TEXT2PCAP):
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browser_open_data_file("text2pcap.html");
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break;
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#ifdef ETHEREAL_EUG_DIR
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/* local help pages (User's Guide) */
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case(HELP_CONTENT):
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browser_open_data_file("eug_html_chunked/index.html");
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break;
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case(HELP_CAPTURE_OPTIONS_DIALOG):
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browser_open_data_file("eug_html_chunked/ChCapCaptureOptions.html");
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break;
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case(HELP_CAPTURE_FILTERS_DIALOG):
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browser_open_data_file("eug_html_chunked/ChWorkDefineFilterSection.html");
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break;
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case(HELP_DISPLAY_FILTERS_DIALOG):
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browser_open_data_file("eug_html_chunked/ChWorkDefineFilterSection.html");
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break;
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#endif
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default:
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g_assert_not_reached();
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}
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}
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void
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url_page_cb(GtkWidget *w _U_, url_page_action_e action)
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{
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url_page_action(action);
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}
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void
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url_page_menu_cb( GtkWidget *w _U_, gpointer data _U_, url_page_action_e action)
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{
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url_page_action(action);
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}
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