/* -*- mode: c; style: linux -*- */ /* capplet-dir-view-html.c * Copyright (C) 2000, 2001 Ximian, Inc. * * Written by Jacob Berkman * * 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, 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 #include #include #include #include #include #include #include "capplet-dir-view.h" typedef struct { GtkHTML *top; GtkHTML *sidebar; GtkHTML *main; CappletDir *root_dir; int icon_cols; gboolean only_update_main; } HtmlViewData; static void html_clear (CappletDirView *view) { HtmlViewData *data; data = view->view_data; gtk_html_load_empty (data->top); gtk_html_load_empty (data->main); } static void html_clean (CappletDirView *view) { /* gtk_widget_unparent (view->view); */ g_free (view->view_data); view->view_data = NULL; } #define BUFLEN 4096 static void handle_url_cb (GtkHTML *html, const gchar *url, GtkHTMLStream *stream, CappletDirView *view) { char buf[BUFLEN]; int fd; ssize_t s; fd = open (url, O_RDONLY); if (fd == -1) goto loading_error; while (1) { s = read (fd, buf, BUFLEN); switch (s) { case -1: if (! (errno == EINTR || errno == EAGAIN) ) goto loading_error; break; case 0: gtk_html_end (html, stream, GTK_HTML_STREAM_OK); return; default: gtk_html_write (html, stream, buf, s); break; } } return; loading_error: gtk_html_end (html, stream, GTK_HTML_STREAM_ERROR); } #undef BUFLEN static void handle_link_cb (GtkHTML *html, const gchar *url, CappletDirView *view) { CappletDirEntry *entry; entry = capplet_lookup (url); if (entry) capplet_dir_entry_activate (entry, view); } static void write_parent_html (CappletDir *dir, GtkHTML *html, GtkHTMLStream *stream) { char *s, *utfs; if (!dir) return; g_return_if_fail (html != NULL); g_return_if_fail (stream != NULL); write_parent_html (dir->entry.dir, html, stream); utfs = e_utf8_from_locale_string (dir->entry.label); s = g_strdup_printf ("%s %s", dir->entry.dir ? " |" : "", dir->entry.path, utfs); g_free (utfs); gtk_html_write (html, stream, s, strlen (s)); g_free (s); } static gboolean save_cb (gpointer engine, gchar *data, guint len, gpointer user_data) { fprintf (user_data, data); } static void header_populate (CappletDirView *view) { GtkHTMLStream *stream; HtmlViewData *data; char *s, *utf_title, *utf_path; data = view->view_data; stream = gtk_html_begin (data->top); utf_title = e_utf8_from_locale_string (_("GNOME Control Center:")); utf_path = e_utf8_from_locale_string (CAPPLET_DIR_ENTRY (view->capplet_dir)->label); s = g_strdup_printf ( "" "" "" "" "" "" "

$\"\"$

%s %s

" "", utf_title, utf_path); g_free (utf_title); g_free (utf_path); gtk_html_write (data->top, stream, s, strlen (s)); g_free (s); gtk_html_end (data->top, stream, GTK_HTML_STREAM_OK); } static int total_num_items (GSList *items) { GSList *l; CappletDirEntry *entry; int num = 0; for (l = items; l != NULL; l = l->next) { entry = CAPPLET_DIR_ENTRY (l->data); if (entry->type == TYPE_CAPPLET_DIR) { num += total_num_items (CAPPLET_DIR (entry)->entries); continue; } else num++; } return num; } static void sidebar_populate (CappletDirView *view) { GtkHTMLStream *stream; HtmlViewData *data; CappletDirEntry *entry; GSList *item; char *s, *utfs; data = view->view_data; stream = gtk_html_begin (data->sidebar); utfs = e_utf8_from_locale_string (CAPPLET_DIR_ENTRY (data->root_dir)->label); s = g_strdup_printf ( "" "" "" "" //"" "" "" "" "", CAPPLET_DIR_ENTRY (data->root_dir)->path, CAPPLET_DIR_ENTRY (data->root_dir)->icon, CAPPLET_DIR_ENTRY (data->root_dir)->path, utfs, (data->root_dir == view->capplet_dir) ? ART_DIR "/active.png" : ART_DIR "/blank.png"); g_free (utfs); gtk_html_write (data->sidebar, stream, s, strlen (s)); g_free (s); for (item = data->root_dir->entries; item; item = item->next) { entry = CAPPLET_DIR_ENTRY (item->data); if (entry->type != TYPE_CAPPLET_DIR) continue; if (total_num_items (CAPPLET_DIR (entry)->entries) < 1) continue; utfs = e_utf8_from_locale_string (entry->label); s = g_strdup_printf ("", entry->path, entry->icon, entry->path, utfs, (CAPPLET_DIR (entry) == view->capplet_dir) ? ART_DIR "/active.png" : ART_DIR "/blank.png"); g_free (utfs); gtk_html_write (data->sidebar, stream, s, strlen (s)); g_free (s); } s = "


$\"\"$	%s	$\"\"$
$\"\"$	%s	$\"\"$

"; gtk_html_write (data->sidebar, stream, s, strlen (s)); } /* Write a row of up to 4 items and return a pointer to the next 4 */ static GSList* html_write_row (GtkHTML *html, GtkHTMLStream *stream, GSList *list, int the_max) { CappletDirEntry *entry; int i; char *s, *utfs; GSList *item; g_return_val_if_fail (list != NULL, NULL); s = g_strdup_printf ("

", the_max * 2 + 1); gtk_html_write (html, stream, s, strlen (s)); g_free (s); i = 0; for (item = list; item; item = item->next) { entry = CAPPLET_DIR_ENTRY (item->data); if (entry->type != TYPE_CAPPLET) continue; s = g_strdup_printf (" $\"\"$

", entry->path, entry->icon); gtk_html_write (html, stream, s, strlen (s)); g_free (s); /* Control. Can't go in for-decl because it would inc in all * cases, including the skipped directories. */ i++; if (!(i < the_max)) break; } s = "

"; gtk_html_write (html, stream, s, strlen (s)); i = 0; for (item = list; item; item = item->next) { entry = CAPPLET_DIR_ENTRY (item->data); if (entry->type != TYPE_CAPPLET) continue; utfs = e_utf8_from_locale_string (entry->label); s = g_strdup_printf ("%s

", entry->path, utfs); g_free (utfs); gtk_html_write (html, stream, s, strlen (s)); g_free (s); i++; if (!(i < the_max)) { item = item->next; break; } } s = "tr>\n"; gtk_html_write (html, stream, s, strlen (s)); return item; } static void html_populate (CappletDirView *view) { HtmlViewData *data; GtkHTMLStream *stream; GSList *item; char *s; data = view->view_data; if (!data->root_dir) data->root_dir = view->capplet_dir; if (!data->only_update_main) { header_populate (view); sidebar_populate (view); } stream = gtk_html_begin (data->main); s = "" "" "" "" "" ""; gtk_html_write (data->main, stream, s, strlen (s)); /* write_parent_html (view->capplet_dir->entry.dir, data->main, stream); */ for (item = view->capplet_dir->entries; item; ) { item = html_write_row (data->main, stream, item, data->icon_cols); } s = g_strdup_printf ("", data->icon_cols * 2 + 1); gtk_html_write (data->main, stream, s, strlen (s)); g_free (s); s = "

\n" " \n" "\n"; gtk_html_write (data->main, stream, s, strlen (s)); gtk_html_end (data->main, stream, GTK_HTML_STREAM_OK); // gtk_widget_set_usize (GTK_WIDGET (data->main), html_engine_calc_min_width (data->main->engine), 0); // g_print ("%i\n", html_engine_calc_min_width (data->main->engine)); } static void main_allocate_cb (GtkWidget *widget, GtkAllocation *allocation, CappletDirView *view) { int new_cols = allocation->width / 64 - 1; HtmlViewData *data = view->view_data; if (new_cols != data->icon_cols) { data->icon_cols = new_cols; data->only_update_main = TRUE; html_populate (view); data->only_update_main = FALSE; } } static GtkWidget * html_create (CappletDirView *view) { GtkWidget *vbox; GtkWidget *hbox; HtmlViewData *data; GtkWidget *sw; data = g_new (HtmlViewData, 1); view->view_data = data; data->root_dir = NULL; data->icon_cols = 3; data->only_update_main = FALSE; vbox = gtk_vbox_new (FALSE, 0); /* top widget */ data->top = GTK_HTML (gtk_html_new ()); gtk_html_set_default_content_type (GTK_HTML (data->top), "text/html; charset=utf-8"); sw = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_NEVER); gtk_container_add (GTK_CONTAINER (sw), GTK_WIDGET (data->top)); gtk_widget_set_usize (GTK_WIDGET (data->top), 0, 48); gtk_box_pack_start (GTK_BOX (vbox), sw, FALSE, FALSE, 0); hbox = gtk_hbox_new (FALSE, 0); gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0); /* sidebar */ data->sidebar = GTK_HTML (gtk_html_new ()); gtk_html_set_default_content_type (GTK_HTML (data->sidebar), "text/html; charset=utf-8"); sw = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC); gtk_container_add (GTK_CONTAINER (sw), GTK_WIDGET (data->sidebar)); gtk_widget_set_usize (GTK_WIDGET (data->sidebar), 140, 0); gtk_box_pack_start (GTK_BOX (hbox), sw, FALSE, FALSE, 0); /* main widget */ data->main = GTK_HTML (gtk_html_new ()); gtk_html_set_default_content_type (GTK_HTML (data->main), "text/html; charset=utf-8"); sw = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_ALWAYS); gtk_container_add (GTK_CONTAINER (sw), GTK_WIDGET (data->main)); gtk_box_pack_start (GTK_BOX (hbox), sw, TRUE, TRUE, 0); gtk_signal_connect (GTK_OBJECT (data->top), "url_requested", GTK_SIGNAL_FUNC (handle_url_cb), view); gtk_signal_connect (GTK_OBJECT (data->sidebar), "url_requested", GTK_SIGNAL_FUNC (handle_url_cb), view); gtk_signal_connect (GTK_OBJECT (data->main), "url_requested", GTK_SIGNAL_FUNC (handle_url_cb), view); gtk_signal_connect (GTK_OBJECT (data->sidebar), "link_clicked", GTK_SIGNAL_FUNC (handle_link_cb), view); gtk_signal_connect (GTK_OBJECT (data->main), "link_clicked", GTK_SIGNAL_FUNC (handle_link_cb), view); gtk_signal_connect (GTK_OBJECT (data->main), "size_allocate", GTK_SIGNAL_FUNC (main_allocate_cb), view); gtk_html_allow_selection (data->top, FALSE); gtk_html_allow_selection (data->sidebar, FALSE); gtk_html_allow_selection (data->main, FALSE); gtk_widget_show_all (vbox); return vbox; } CappletDirViewImpl capplet_dir_view_html = { html_clear, html_clean, html_populate, html_create };