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gimp/plug-ins/helpbrowser/helpbrowser.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* The GIMP Help Browser
* Copyright (C) 1999 Sven Neumann <sven@gimp.org>
* Michael Natterer <mitschel@cs.tu-berlin.de>
*
* Some code & ideas stolen from the GNOME help browser.
*
* 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 version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty 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 License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <gtk-xmhtml/gtk-xmhtml.h>
#include <gdk/gdkkeysyms.h>
#include "libgimp/gimp.h"
#include "queue.h"
/* pixmaps */
#include "back.xpm"
#include "forward.xpm"
/* defines */
#ifdef __EMX__
#define chdir _chdir2
#endif
#define GIMP_HELP_EXT_NAME "extension_gimp_help_browser"
#define GIMP_HELP_TEMP_EXT_NAME "extension_gimp_help_browser_temp"
#define GIMP_HELP_PREFIX "help"
enum {
CONTENTS,
INDEX,
HELP
};
enum {
URL_UNKNOWN,
URL_NAMED, /* ??? */
URL_JUMP,
URL_FILE_LOCAL,
/* aliases */
URL_LAST = URL_FILE_LOCAL
};
/* structures */
typedef struct
{
gint index;
gchar *label;
Queue *queue;
gchar *current_ref;
GtkWidget *html;
gchar *home;
} HelpPage;
typedef struct
{
gchar *title;
gchar *ref;
gint count;
} HistoryItem;
/* constant strings */
static char *doc_not_found_format_string =
"<html><head><title>Document not found</title></head>"
"<body bgcolor=\"#ffffff\">"
"<center>"
"<p>"
"%s"
"<h3>Couldn't find document</h3>"
"<tt>%s</tt>"
"</center>"
"<p>"
"<small>This either means that the help for this topic has not been written yet "
"or that something is wrong with your installation. Please check carefully "
"before you report this as a bug.</small>"
"</body>"
"</html>";
static char *dir_not_found_format_string =
"<html><head><title>Directory not found</title></head>"
"<body bgcolor=\"#ffffff\">"
"<center>"
"<p>"
"%s"
"<h3>Couldn't change to directory</h3>"
"<tt>%s</tt>"
"<h3>while trying to access</h3>"
"<tt>%s</tt>"
"</center>"
"<p>"
"<small>This either means that the help for this topic has not been written yet "
"or that something is wrong with your installation. Please check carefully "
"before you report this as a bug.</small>"
"</body>"
"</html>";
static gchar *eek_png_tag = "<h1>Eeek!</h1>";
/* the three help notebook pages */
static HelpPage pages[] =
{
{
CONTENTS,
"Contents",
NULL,
NULL,
NULL,
"contents.html"
},
{
INDEX,
"Index",
NULL,
NULL,
NULL,
"index.html"
},
{
HELP,
"Help",
NULL,
NULL,
NULL,
"welcome.html"
}
};
static HelpPage *current_page = &pages[HELP];
static GList *history = NULL;
static GtkWidget *back_button;
static GtkWidget *forward_button;
static GtkWidget *notebook;
static GtkWidget *combo;
static GtkTargetEntry help_dnd_target_table[] =
{
{ "_NETSCAPE_URL", 0, 0 },
};
static guint n_help_dnd_targets = (sizeof (help_dnd_target_table) /
sizeof (help_dnd_target_table[0]));
/* GIMP plugin stuff */
static void query (void);
static void run (char *name, int nparams, GParam *param,
int *nreturn_vals, GParam **return_vals);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static gboolean temp_proc_installed = FALSE;
/* forward declaration */
static gint load_page (HelpPage *source_page, HelpPage *dest_page,
gchar *ref, gint pos,
gboolean add_to_queue, gboolean add_to_history);
/* functions */
static void
close_callback (GtkWidget *widget,
gpointer user_data)
{
gtk_main_quit ();
}
static void
update_toolbar (HelpPage *page)
{
if (back_button)
gtk_widget_set_sensitive (back_button, queue_isprev (page->queue));
if (forward_button)
gtk_widget_set_sensitive (forward_button, queue_isnext (page->queue));
}
static void
jump_to_anchor (HelpPage *page,
gchar *anchor)
{
gint pos;
g_return_if_fail (page != NULL && anchor != NULL);
if (*anchor != '#')
{
gchar *a = g_strconcat ("#", anchor, NULL);
XmHTMLAnchorScrollToName (page->html, a);
g_free (a);
}
else
XmHTMLAnchorScrollToName (page->html, anchor);
pos = gtk_xmhtml_get_topline (GTK_XMHTML (page->html));
queue_add (page->queue, page->current_ref, pos);
update_toolbar (page);
}
static void
forward_callback (GtkWidget *widget,
gpointer data)
{
gchar *ref;
gint pos;
if (!(ref = queue_next (current_page->queue, &pos)))
return;
load_page (current_page, current_page, ref, pos, FALSE, FALSE);
queue_move_next (current_page->queue);
update_toolbar (current_page);
}
static void
back_callback (GtkWidget *widget,
gpointer data)
{
gchar *ref;
gint pos;
if (!(ref = queue_prev (current_page->queue, &pos)))
return;
load_page (current_page, current_page, ref, pos, FALSE, FALSE);
queue_move_prev (current_page->queue);
update_toolbar (current_page);
}
static void
entry_changed_callback (GtkWidget *widget,
gpointer data)
{
GList *list;
HistoryItem *item;
gchar *entry_text;
gchar *compare_text;
gboolean found = FALSE;
entry_text = gtk_entry_get_text (GTK_ENTRY (widget));
for (list = history; list && !found; list = list->next)
{
item = (HistoryItem *) list->data;
if (item->count)
compare_text = g_strdup_printf ("%s <%i>",
item->title,
item->count + 1);
else
compare_text = item->title;
if (strcmp (compare_text, entry_text) == 0)
{
load_page (&pages[HELP], &pages[HELP], item->ref, 0, TRUE, FALSE);
found = TRUE;
}
if (item->count)
g_free (compare_text);
}
}
static void
history_add (gchar *ref,
gchar *title)
{
GList *list;
GList *found = NULL;
HistoryItem *item;
GList *combo_list = NULL;
gint title_found_count = 0;
for (list = history; list && !found; list = list->next)
{
item = (HistoryItem *) list->data;
if (strcmp (item->title, title) == 0)
{
if (strcmp (item->ref, ref) != 0)
{
title_found_count++;
continue;
}
found = list;
}
}
if (found)
{
item = (HistoryItem *) found->data;
history = g_list_remove_link (history, found);
}
else
{
item = g_new (HistoryItem, 1);
item->ref = g_strdup (ref);
item->title = g_strdup (title);
item->count = title_found_count;
}
history = g_list_prepend (history, item);
for (list = history; list; list = list->next)
{
gchar* combo_title;
item = (HistoryItem *) list->data;
if (item->count)
combo_title = g_strdup_printf ("%s <%i>",
item->title,
item->count + 1);
else
combo_title = g_strdup (item->title);
combo_list = g_list_prepend (combo_list, combo_title);
}
combo_list = g_list_reverse (combo_list);
gtk_signal_handler_block_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry), combo);
gtk_combo_set_popdown_strings (GTK_COMBO (combo), combo_list);
gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (combo)->entry), item->title);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry), combo);
for (list = combo_list; list; list = list->next)
g_free (list->data);
g_list_free (combo_list);
}
static void
html_source (HelpPage *page,
gchar *ref,
gint pos,
gchar *source,
gboolean add_to_queue,
gboolean add_to_history)
{
gchar *title = NULL;
g_return_if_fail (page != NULL && ref != NULL && source != NULL);
/* Load it up */
gtk_xmhtml_source (GTK_XMHTML (page->html), source);
gtk_xmhtml_set_topline (GTK_XMHTML(page->html), pos);
if (add_to_queue)
queue_add (page->queue, ref, pos);
if (page->index == HELP)
{
title = XmHTMLGetTitle (page->html);
if (!title)
title = ("<Untitled>");
gtk_signal_handler_block_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry),
combo);
gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (combo)->entry), title);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry),
combo);
if (add_to_history)
history_add (ref, title);
}
update_toolbar (page);
}
static gint
load_page (HelpPage *source_page,
HelpPage *dest_page,
gchar *ref,
gint pos,
gboolean add_to_queue,
gboolean add_to_history)
{
GString *file_contents;
FILE *afile = NULL;
char aline[1024];
gchar *old_dir;
gchar *new_dir, *new_base;
gchar *new_ref;
gboolean page_valid = FALSE;
g_return_val_if_fail (ref != NULL && source_page != NULL && dest_page != NULL, FALSE);
old_dir = g_dirname (source_page->current_ref);
new_dir = g_dirname (ref);
new_base = g_basename (ref);
/* return value is intentionally ignored */
chdir (old_dir);
file_contents = g_string_new (NULL);
if (chdir (new_dir) == -1)
{
if (g_path_is_absolute (ref))
new_ref = g_strdup (ref);
else
new_ref = g_strconcat (old_dir, G_DIR_SEPARATOR_S, ref, NULL);
g_string_sprintf (file_contents, dir_not_found_format_string,
eek_png_tag, new_dir, new_ref);
html_source (dest_page, new_ref, 0, file_contents->str, add_to_queue, FALSE);
goto FINISH;
}
g_free (new_dir);
new_dir = g_get_current_dir ();
new_ref = g_strconcat (new_dir, G_DIR_SEPARATOR_S, new_base, NULL);
if (strcmp (dest_page->current_ref, new_ref) == 0)
{
gtk_xmhtml_set_topline (GTK_XMHTML (dest_page->html), pos);
if (add_to_queue)
queue_add (dest_page->queue, new_ref, pos);
goto FINISH;
}
/*
* handle basename like: filename.html#11111 -> filename.html
*/
g_strdelimit (new_base,"#",'\0');
afile = fopen (new_base, "rt");
if (afile != NULL)
{
while (fgets (aline, sizeof (aline), afile))
file_contents = g_string_append (file_contents, aline);
fclose (afile);
}
if (strlen (file_contents->str) <= 0)
{
chdir (old_dir);
g_string_sprintf (file_contents, doc_not_found_format_string,
eek_png_tag, ref);
}
else
page_valid = TRUE;
html_source (dest_page, new_ref, 0, file_contents->str,
add_to_queue, add_to_history && page_valid);
FINISH:
g_free (dest_page->current_ref);
dest_page->current_ref = new_ref;
g_string_free (file_contents, TRUE);
g_free (old_dir);
g_free (new_dir);
gtk_notebook_set_page (GTK_NOTEBOOK (notebook), dest_page->index);
return (page_valid);
}
static void
xmhtml_activate (GtkWidget *html,
gpointer data)
{
XmHTMLAnchorCallbackStruct *cbs = (XmHTMLAnchorCallbackStruct *) data;
switch (cbs->url_type)
{
case URL_JUMP:
jump_to_anchor (current_page, cbs->href);
break;
case URL_FILE_LOCAL:
load_page (current_page, &pages[HELP], cbs->href, 0, TRUE, TRUE);
break;
default:
/* should handle http request here (e.g. pass them to netscape) */
break;
}
}
static GtkWidget *
pixmap_button_new (gchar **xpm,
gchar *text,
GtkWidget *parent)
{
GtkWidget *box;
GtkWidget *label;
GtkWidget *button;
GtkWidget *pixmapwid;
GdkPixmap *pixmap;
GdkBitmap *mask;
GtkStyle *style;
gtk_widget_realize (parent);
style = gtk_widget_get_style (parent);
pixmap = gdk_pixmap_create_from_xpm_d (parent->window,
&mask,
&style->bg[GTK_STATE_NORMAL],
xpm);
pixmapwid = gtk_pixmap_new (pixmap, mask);
box = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (box), pixmapwid, FALSE, FALSE, 0);
gtk_widget_show (pixmapwid);
label = gtk_label_new (text);
gtk_box_pack_start (GTK_BOX (box), label, TRUE, TRUE, 0);
gtk_widget_show (label);
gtk_widget_show (box);
button = gtk_button_new ();
gtk_container_set_border_width (GTK_CONTAINER (button), 0);
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_container_add (GTK_CONTAINER (button), box);
return (button);
}
static void
notebook_switch_callback (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num,
gpointer user_data)
{
GtkXmHTML *html;
gint i;
GList *children;
g_return_if_fail (page_num >= 0 && page_num < 3);
html = GTK_XMHTML (current_page->html);
/* The html widget fails to do the following by itself */
GTK_WIDGET_UNSET_FLAGS (html->html.work_area, GTK_MAPPED);
GTK_WIDGET_UNSET_FLAGS (html->html.vsb, GTK_MAPPED);
GTK_WIDGET_UNSET_FLAGS (html->html.hsb, GTK_MAPPED);
/* Frames */
for (i = 0; i < html->html.nframes; i++)
GTK_WIDGET_UNSET_FLAGS (html->html.frames[i]->frame, GTK_MAPPED);
/* Form widgets */
for (children = html->children; children; children = children->next)
GTK_WIDGET_UNSET_FLAGS (children->data, GTK_MAPPED);
/* Set the new page */
current_page = &pages[page_num];
}
static void
notebook_switch_after_callback (GtkNotebook *notebook,
GtkNotebookPage *page,
gint page_num,
gpointer user_data)
{
GtkAccelGroup *accel_group = gtk_accel_group_get_default ();
gtk_widget_add_accelerator (GTK_XMHTML (current_page->html)->html.vsb,
"page_up", accel_group,
'b', 0, 0);
gtk_widget_add_accelerator (GTK_XMHTML (current_page->html)->html.vsb,
"page_down", accel_group,
' ', 0, 0);
gtk_widget_add_accelerator (GTK_XMHTML (current_page->html)->html.vsb,
"page_up", accel_group,
GDK_Page_Up, 0, 0);
gtk_widget_add_accelerator (GTK_XMHTML (current_page->html)->html.vsb,
"page_down", accel_group,
GDK_Page_Down, 0, 0);
update_toolbar (current_page);
}
static gint
notebook_label_button_press_callback (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
guint i = GPOINTER_TO_UINT (data);
if (current_page != &pages[i])
gtk_notebook_set_page (GTK_NOTEBOOK (notebook), i);
return (TRUE);
}
static void
combo_drag_begin (GtkWidget *widget,
gpointer data)
{
}
static void
combo_drag_handle (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
HelpPage *page = (HelpPage*)data;
if (page->current_ref != NULL)
{
gtk_selection_data_set (selection_data,
selection_data->target,
8,
page->current_ref,
strlen (page->current_ref));
}
}
static void
page_up_callback (GtkWidget *widget,
GtkWidget *html)
{
GtkAdjustment *adj;
adj = GTK_ADJUSTMENT (GTK_XMHTML (html)->vsba);
gtk_adjustment_set_value (adj, adj->value - (adj->page_size));
}
static void
page_down_callback (GtkWidget *widget,
GtkWidget *html)
{
GtkAdjustment *adj;
adj = GTK_ADJUSTMENT (GTK_XMHTML (html)->vsba);
gtk_adjustment_set_value (adj, adj->value + (adj->page_size));
}
static gint
set_initial_history (gpointer data)
{
gint add_to_history = GPOINTER_TO_INT (data);
gchar *title;
title = XmHTMLGetTitle (pages[HELP].html);
if (add_to_history)
history_add (pages[HELP].current_ref, title);
gtk_signal_handler_block_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry), combo);
gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (combo)->entry), title);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (GTK_COMBO (combo)->entry), combo);
return FALSE;
}
gboolean
open_browser_dialog (gchar *path)
{
GtkWidget *window;
GtkWidget *vbox, *hbox, *bbox, *html_box;
GtkWidget *button;
GtkWidget *title;
GtkWidget *drag_source;
GtkWidget *label;
gchar *initial_dir;
gchar *initial_ref;
gchar *root_dir;
gchar *eek_png_path;
gint success;
guint i;
gint argc;
gchar **argv;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("webbrowser");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
root_dir = g_strconcat (gimp_data_directory(), G_DIR_SEPARATOR_S,
GIMP_HELP_PREFIX, NULL);
if (chdir (root_dir) == -1)
{
gimp_message ("GIMP Help Browser Error.\n\n"
"Couldn't find my root html directory.");
return FALSE;
}
eek_png_path = g_strconcat (root_dir, G_DIR_SEPARATOR_S,
"eek.png", NULL);
if (access (eek_png_path, R_OK) == 0)
eek_png_tag = g_strdup_printf ("<img src=\"%s\">", eek_png_path);
g_free (eek_png_path);
g_free (root_dir);
initial_dir = g_get_current_dir ();
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC (close_callback), NULL);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (close_callback), NULL);
gtk_window_set_wmclass (GTK_WINDOW (window), "gimp_help_browser", "Gimp");
gtk_window_set_title (GTK_WINDOW (window), "GIMP Help Browser");
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
bbox = gtk_hbutton_box_new ();
gtk_button_box_set_spacing (GTK_BUTTON_BOX (bbox), 0);
gtk_box_pack_start (GTK_BOX (hbox), bbox, FALSE, FALSE, 0);
back_button = pixmap_button_new (back_xpm, "Back", window);
gtk_container_add (GTK_CONTAINER (bbox), back_button);
gtk_widget_set_sensitive (GTK_WIDGET (back_button), FALSE);
gtk_signal_connect (GTK_OBJECT (back_button), "clicked",
GTK_SIGNAL_FUNC (back_callback), NULL);
gtk_widget_show (back_button);
forward_button = pixmap_button_new (forward_xpm, "Forward", window);
gtk_container_add (GTK_CONTAINER (bbox), forward_button);
gtk_widget_set_sensitive (GTK_WIDGET (forward_button), FALSE);
gtk_signal_connect (GTK_OBJECT (forward_button), "clicked",
GTK_SIGNAL_FUNC (forward_callback), NULL);
gtk_widget_show (forward_button);
gtk_widget_show (bbox);
bbox = gtk_hbutton_box_new ();
gtk_box_pack_end (GTK_BOX (hbox), bbox, FALSE, FALSE, 0);
button = gtk_button_new_with_label ("Close");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_container_add (GTK_CONTAINER (bbox), button);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (close_callback), NULL);
gtk_widget_show (button);
gtk_widget_show (bbox);
gtk_widget_show (hbox);
notebook = gtk_notebook_new ();
gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_TOP);
gtk_notebook_set_tab_vborder (GTK_NOTEBOOK (notebook), 0);
gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
for (i = 0; i < 3; i++)
{
static guint page_up_signal = 0;
static guint page_down_signal = 0;
pages[i].index = i;
pages[i].html = gtk_xmhtml_new ();
pages[i].queue = queue_new ();
pages[i].current_ref = g_strconcat (initial_dir, G_DIR_SEPARATOR_S,
".", NULL);
gtk_xmhtml_set_anchor_underline_type (GTK_XMHTML (pages[i].html),
GTK_ANCHOR_SINGLE_LINE);
gtk_xmhtml_set_anchor_buttons (GTK_XMHTML (pages[i].html), FALSE);
gtk_widget_set_usize (GTK_WIDGET (pages[i].html), -1, 300);
switch (i)
{
case CONTENTS:
case INDEX:
title = drag_source = gtk_event_box_new ();
label = gtk_label_new (pages[i].label);
gtk_container_add (GTK_CONTAINER (title), label);
gtk_widget_show (label);
break;
case HELP:
title = combo = gtk_combo_new ();
drag_source = GTK_COMBO (combo)->entry;
gtk_widget_set_usize (GTK_WIDGET (combo), 300, -1);
gtk_entry_set_editable (GTK_ENTRY (GTK_COMBO (combo)->entry), FALSE);
gtk_combo_set_use_arrows (GTK_COMBO (combo), TRUE);
gtk_signal_connect (GTK_OBJECT (GTK_COMBO (combo)->entry),
"changed",
GTK_SIGNAL_FUNC (entry_changed_callback),
combo);
gtk_widget_show (combo);
break;
default:
break;
}
/* connect to the button_press signal to make notebook switching working */
gtk_signal_connect (GTK_OBJECT (title), "button_press_event",
GTK_SIGNAL_FUNC (notebook_label_button_press_callback),
GUINT_TO_POINTER (i));
/* dnd source */
gtk_drag_source_set (GTK_WIDGET (drag_source),
GDK_BUTTON1_MASK,
help_dnd_target_table, n_help_dnd_targets,
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (drag_source), "drag_begin",
GTK_SIGNAL_FUNC (combo_drag_begin),
&pages[i]);
gtk_signal_connect (GTK_OBJECT (drag_source), "drag_data_get",
GTK_SIGNAL_FUNC (combo_drag_handle),
&pages[i]);
html_box = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (html_box), pages[i].html);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), html_box, title);
gtk_widget_show (title);
if (i == HELP && path)
{
if (g_path_is_absolute (path))
initial_ref = g_strdup (path);
else
initial_ref = g_strconcat (initial_dir, G_DIR_SEPARATOR_S,
path, NULL);
}
else
initial_ref = g_strconcat (initial_dir, G_DIR_SEPARATOR_S,
pages[i].home, NULL);
success = load_page (&pages[i], &pages[i], initial_ref, 0, TRUE, FALSE);
g_free (initial_ref);
gtk_widget_show (pages[i].html);
gtk_widget_show (html_box);
gtk_signal_connect (GTK_OBJECT (pages[i].html), "activate",
(GtkSignalFunc) xmhtml_activate, &pages[i]);
if (! page_up_signal)
{
page_up_signal = gtk_object_class_user_signal_new
(GTK_OBJECT (GTK_XMHTML (pages[i].html)->html.vsb)->klass,
"page_up",
GTK_RUN_FIRST,
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
page_down_signal = gtk_object_class_user_signal_new
(GTK_OBJECT (GTK_XMHTML (pages[i].html)->html.vsb)->klass,
"page_down",
GTK_RUN_FIRST,
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
}
gtk_signal_connect (GTK_OBJECT (GTK_XMHTML (pages[i].html)->html.vsb),
"page_up",
GTK_SIGNAL_FUNC (page_up_callback), pages[i].html);
gtk_signal_connect (GTK_OBJECT (GTK_XMHTML (pages[i].html)->html.vsb),
"page_down",
GTK_SIGNAL_FUNC (page_down_callback), pages[i].html);
}
gtk_signal_connect (GTK_OBJECT (notebook), "switch-page",
GTK_SIGNAL_FUNC (notebook_switch_callback), NULL);
gtk_signal_connect_after (GTK_OBJECT (notebook), "switch-page",
GTK_SIGNAL_FUNC (notebook_switch_after_callback), NULL);
gtk_notebook_set_page (GTK_NOTEBOOK (notebook), HELP);
gtk_widget_show (notebook);
gtk_widget_show (vbox);
gtk_widget_show (window);
gtk_idle_add ((GtkFunction) set_initial_history, GINT_TO_POINTER (success));
g_free (initial_dir);
return TRUE;
}
static gint
idle_load_page (gpointer data)
{
gchar *path = data;
load_page (&pages[HELP], &pages[HELP], path, 0, TRUE, TRUE);
g_free (path);
return FALSE;
}
static void
run_temp_proc (gchar *name,
gint nparams,
GParam *param,
gint *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GStatusType status = STATUS_SUCCESS;
gchar *path;
/* Make sure all the arguments are there! */
if ((nparams != 1) ||
!strlen (param[0].data.d_string))
path = "welcome.html";
else
path = param[0].data.d_string;
if (g_path_is_absolute (path))
path = g_strdup (path);
else
path = g_strconcat (gimp_data_directory (), G_DIR_SEPARATOR_S,
GIMP_HELP_PREFIX, G_DIR_SEPARATOR_S,
path, NULL);
gtk_idle_add (idle_load_page, path);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
}
/* from libgimp/gimp.c */
void
gimp_run_temp (void);
static gboolean
input_callback (GIOChannel *channel,
GIOCondition condition,
gpointer data)
{
/* We have some data in the wire - read it */
/* The below will only ever run a single proc */
gimp_run_temp ();
return TRUE;
}
static void
install_temp_proc (void)
{
static GParamDef args[] =
{
{ PARAM_STRING, "path", "Path of a local document to open. "
"Can be relative to GIMP_HELP_PATH." }
};
static int nargs = sizeof (args) / sizeof (args[0]);
static GParamDef *return_vals = NULL;
static int nreturn_vals = 0;
gimp_install_temp_proc (GIMP_HELP_TEMP_EXT_NAME,
"DON'T USE THIS ONE",
"(Temporary procedure)",
"Sven Neumann <sven@gimp.org>, "
"Michael Natterer <mitschel@cs.tu-berlin.de>",
"Sven Neumann & Michael Natterer",
"1999",
NULL,
"",
PROC_TEMPORARY,
nargs, nreturn_vals,
args, return_vals,
run_temp_proc);
/* Tie into the gdk input function */
g_io_add_watch (_readchannel, G_IO_IN | G_IO_PRI, input_callback, NULL);
/* This needed on Win32 */
gimp_request_wakeups ();
temp_proc_installed = TRUE;
}
static gboolean
open_url (gchar *path)
{
if (! open_browser_dialog (path))
return FALSE;
install_temp_proc ();
gtk_main ();
return TRUE;
}
MAIN ()
static void
query ()
{
static GParamDef args[] =
{
{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
{ PARAM_STRING, "path", "Path of a local document to open. "
"Can be relative to GIMP_HELP_PATH." }
};
static int nargs = sizeof (args) / sizeof (args[0]);
static GParamDef *return_vals = NULL;
static int nreturn_vals = 0;
gimp_install_procedure (GIMP_HELP_EXT_NAME,
"Browse the GIMP help pages.",
"",
"Sven Neumann <sven@gimp.org>, "
"Michael Natterer <mitschel@cs.tu-berlin.de>",
"Sven Neumann & Michael Natterer",
"1999",
NULL,
"",
PROC_EXTENSION,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[1];
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
gchar *path;
run_mode = param[0].data.d_int32;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
*nreturn_vals = 1;
*return_vals = values;
if (strcmp (name, GIMP_HELP_EXT_NAME) == 0)
{
switch (run_mode)
{
case RUN_INTERACTIVE:
case RUN_NONINTERACTIVE:
case RUN_WITH_LAST_VALS:
/* Make sure all the arguments are there! */
if ((nparams != 2) ||
!strlen (param[1].data.d_string))
path = g_strdup ("welcome.html");
else
path = g_strdup (param[1].data.d_string);
break;
default:
break;
}
if (status == STATUS_SUCCESS)
{
if (!open_url (path))
values[0].data.d_status = STATUS_EXECUTION_ERROR;
else
values[0].data.d_status = STATUS_SUCCESS;
g_free (path);
}
else
values[0].data.d_status = STATUS_EXECUTION_ERROR;
}
else
g_assert_not_reached ();
}
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