/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * mail-display.c: Mail display widget * * Author: * Miguel de Icaza * Bertrand Guiheneuf (bg@aful.org) * * (C) 2000 Helix Code, Inc. */ #include #include #include "e-util/e-util.h" #include "mail-display.h" #include "mail-format.h" #define PARENT_TYPE (gtk_vbox_get_type ()) static GtkObjectClass *mail_display_parent_class; /*----------------------------------------------------------------------* * Callbacks *----------------------------------------------------------------------*/ static CamelStream * cid_stream (const char *cid, CamelMimeMessage *message) { CamelDataWrapper *data; data = gtk_object_get_data (GTK_OBJECT (message), cid); g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data), NULL); return camel_data_wrapper_get_output_stream (data); } static void on_link_clicked (GtkHTML *html, const char *url, gpointer user_data) { gnome_url_show (url); } static void on_url_requested (GtkHTML *html, const char *url, GtkHTMLStreamHandle handle, gpointer user_data) { char buf[1024]; int nread; CamelStream *output; CamelMimeMessage *message = CAMEL_MIME_MESSAGE (user_data); if (strncmp (url, "camel:", 6) == 0) { output = GUINT_TO_POINTER (strtoul (url + 6, NULL, 0)); g_return_if_fail (CAMEL_IS_STREAM (output)); } else if (strncmp (url, "cid:", 4) == 0) { output = cid_stream (url + 4, message); g_return_if_fail (CAMEL_IS_STREAM (output)); } else return; camel_stream_reset (output); do { nread = camel_stream_read (output, buf, sizeof (buf)); if (nread > 0) gtk_html_write (html, handle, buf, nread); } while (!camel_stream_eos (output)); } /* HTML part code */ static void html_size_req (GtkWidget *widget, GtkRequisition *requisition) { requisition->height = GTK_LAYOUT (widget)->height; requisition->width = GTK_LAYOUT (widget)->width; } void mail_html_new (GtkHTML **html, GtkHTMLStreamHandle **stream, CamelMimeMessage *root, gboolean init) { *html = GTK_HTML (gtk_html_new ()); gtk_html_set_editable (*html, FALSE); gtk_signal_connect (GTK_OBJECT (*html), "size_request", GTK_SIGNAL_FUNC (html_size_req), NULL); gtk_signal_connect (GTK_OBJECT (*html), "url_requested", GTK_SIGNAL_FUNC (on_url_requested), root); gtk_signal_connect (GTK_OBJECT (*html), "link_clicked", GTK_SIGNAL_FUNC (on_link_clicked), root); *stream = gtk_html_begin (*html, ""); if (init) { mail_html_write (*html, *stream, HTML_HEADER "\n"); } } void mail_html_write (GtkHTML *html, GtkHTMLStreamHandle *stream, const char *format, ...) { char *buf; va_list ap; va_start (ap, format); buf = g_strdup_vprintf (format, ap); va_end (ap); gtk_html_write (html, stream, buf, strlen (buf)); g_free (buf); } void mail_html_end (GtkHTML *html, GtkHTMLStreamHandle *stream, gboolean finish, GtkBox *box) { GtkWidget *scroll; scroll = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER); gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (html)); if (finish) mail_html_write (html, stream, "\n"); gtk_html_end (html, stream, GTK_HTML_STREAM_OK); gtk_box_pack_start (box, scroll, FALSE, TRUE, 0); gtk_widget_show (GTK_WIDGET (html)); gtk_widget_show (scroll); } /** * mail_display_set_message: * @mail_display: the mail display object * @mime_message: the input camel medium * * Makes the mail_display object show the contents of the medium * param. This means feeding mail_display->body_stream and * mail_display->headers_stream with html. * **/ void mail_display_set_message (MailDisplay *mail_display, CamelMedium *medium) { GtkAdjustment *adj; /* * for the moment, camel-formatter deals only with * mime messages, but in the future, it should be * able to deal with any medium. * It can work on pretty much data wrapper, but in * fact, only the medium class has the distinction * header / body */ if (!CAMEL_IS_MIME_MESSAGE (medium)) return; /* Clean up from previous message. */ if (mail_display->current_message) { GtkContainer *container = GTK_CONTAINER (mail_display->inner_box); GList *htmls; htmls = gtk_container_children (container); while (htmls) { gtk_container_remove (container, htmls->data); htmls = htmls->next; } gtk_object_unref (GTK_OBJECT (mail_display->current_message)); } mail_display->current_message = CAMEL_MIME_MESSAGE (medium); gtk_object_ref (GTK_OBJECT (medium)); mail_format_mime_message (CAMEL_MIME_MESSAGE (medium), mail_display->inner_box); adj = gtk_scrolled_window_get_vadjustment (mail_display->scroll); gtk_adjustment_set_value (adj, 0); gtk_scrolled_window_set_vadjustment (mail_display->scroll, adj); adj = gtk_scrolled_window_get_hadjustment (mail_display->scroll); gtk_adjustment_set_value (adj, 0); gtk_scrolled_window_set_hadjustment (mail_display->scroll, adj); } /*----------------------------------------------------------------------* * Standard Gtk+ Class functions *----------------------------------------------------------------------*/ static void mail_display_init (GtkObject *object) { MailDisplay *mail_display = MAIL_DISPLAY (object); /* various other initializations */ mail_display->current_message = NULL; } static void mail_display_destroy (GtkObject *object) { /* MailDisplay *mail_display = MAIL_DISPLAY (object); */ mail_display_parent_class->destroy (object); } static void mail_display_class_init (GtkObjectClass *object_class) { object_class->destroy = mail_display_destroy; mail_display_parent_class = gtk_type_class (PARENT_TYPE); } GtkWidget * mail_display_new (FolderBrowser *parent_folder_browser) { MailDisplay *mail_display = gtk_type_new (mail_display_get_type ()); GtkWidget *scroll, *vbox; g_assert (parent_folder_browser); mail_display->parent_folder_browser = parent_folder_browser; gtk_box_set_homogeneous (GTK_BOX (mail_display), FALSE); gtk_widget_show (GTK_WIDGET (mail_display)); /* For now, the box only contains a single scrolled window, * which in turn contains a vbox itself. */ scroll = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS); gtk_box_pack_start_defaults (GTK_BOX (mail_display), GTK_WIDGET (scroll)); gtk_widget_show (GTK_WIDGET (scroll)); vbox = gtk_vbox_new (FALSE, 2); gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scroll), vbox); gtk_widget_show (GTK_WIDGET (vbox)); mail_display->scroll = GTK_SCROLLED_WINDOW (scroll); mail_display->inner_box = GTK_BOX (vbox); return GTK_WIDGET (mail_display); } E_MAKE_TYPE (mail_display, "MailDisplay", MailDisplay, mail_display_class_init, mail_display_init, PARENT_TYPE);