11ca787488
* mail-format.c, mail-display.c: Now that we're not limited to a single GtkHTML for the display, there's no reason to embed Bonobo objects for unrecognized content-types in GtkHTML rather than embedded them into the vbox directly. So do that. Meanwhile, fix up the handler-selection code so that we can declare which built-in handlers are more desirable than external handlers and which are less. (Of course, eventually we'll want this to be customizable.) Add some cleverness to handle_multipart_alternative as well so it doesn't accept an alternative which we can display generically over one we can display specifically. svn path=/trunk/; revision=2616
252 lines
6.6 KiB
C
252 lines
6.6 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* mail-display.c: Mail display widget
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*
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* Author:
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* Miguel de Icaza
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* Bertrand Guiheneuf (bg@aful.org)
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*
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* (C) 2000 Helix Code, Inc.
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*/
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#include <config.h>
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#include <gnome.h>
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#include "e-util/e-util.h"
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#include "mail-display.h"
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#include "mail-format.h"
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#define PARENT_TYPE (gtk_vbox_get_type ())
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static GtkObjectClass *mail_display_parent_class;
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/*----------------------------------------------------------------------*
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* Callbacks
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*----------------------------------------------------------------------*/
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static CamelStream *
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cid_stream (const char *cid, CamelMimeMessage *message)
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{
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CamelDataWrapper *data;
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data = gtk_object_get_data (GTK_OBJECT (message), cid);
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data), NULL);
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return camel_data_wrapper_get_output_stream (data);
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}
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static void
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on_url_requested (GtkHTML *html, const char *url, GtkHTMLStreamHandle handle,
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gpointer user_data)
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{
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char buf[1024];
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int nread;
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CamelStream *output;
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CamelMimeMessage *message = CAMEL_MIME_MESSAGE (user_data);
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if (strncmp (url, "camel:", 6) == 0) {
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output = GUINT_TO_POINTER (strtoul (url + 6, NULL, 0));
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g_return_if_fail (CAMEL_IS_STREAM (output));
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} else if (strncmp (url, "cid:", 4) == 0) {
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output = cid_stream (url + 4, message);
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g_return_if_fail (CAMEL_IS_STREAM (output));
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} else
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return;
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camel_stream_reset (output);
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do {
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nread = camel_stream_read (output, buf, sizeof (buf));
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if (nread > 0)
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gtk_html_write (html, handle, buf, nread);
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} while (!camel_stream_eos (output));
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}
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/* HTML part code */
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static void
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html_size_req (GtkWidget *widget, GtkRequisition *requisition)
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{
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requisition->height = GTK_LAYOUT (widget)->height;
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requisition->width = GTK_LAYOUT (widget)->width;
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}
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void
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mail_html_new (GtkHTML **html, GtkHTMLStreamHandle **stream,
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CamelMimeMessage *root, gboolean init)
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{
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*html = GTK_HTML (gtk_html_new ());
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gtk_html_set_editable (*html, FALSE);
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gtk_signal_connect (GTK_OBJECT (*html), "size_request",
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GTK_SIGNAL_FUNC (html_size_req), NULL);
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gtk_signal_connect (GTK_OBJECT (*html), "url_requested",
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GTK_SIGNAL_FUNC (on_url_requested), root);
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*stream = gtk_html_begin (*html, "");
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if (init) {
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mail_html_write (*html, *stream, HTML_HEADER
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"<BODY TEXT=\"#000000\" "
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"BGCOLOR=\"#FFFFFF\">\n");
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}
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}
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void
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mail_html_write (GtkHTML *html, GtkHTMLStreamHandle *stream,
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const char *format, ...)
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{
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char *buf;
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va_list ap;
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va_start (ap, format);
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buf = g_strdup_vprintf (format, ap);
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va_end (ap);
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gtk_html_write (html, stream, buf, strlen (buf));
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g_free (buf);
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}
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void
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mail_html_end (GtkHTML *html, GtkHTMLStreamHandle *stream,
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gboolean finish, GtkBox *box)
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{
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GtkWidget *scroll;
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scroll = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
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GTK_POLICY_NEVER,
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GTK_POLICY_NEVER);
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gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (html));
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if (finish)
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mail_html_write (html, stream, "</BODY></HTML>\n");
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gtk_html_end (html, stream, GTK_HTML_STREAM_OK);
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gtk_box_pack_start (box, scroll, FALSE, TRUE, 0);
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gtk_widget_show (GTK_WIDGET (html));
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gtk_widget_show (scroll);
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}
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/**
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* mail_display_set_message:
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* @mail_display: the mail display object
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* @mime_message: the input camel medium
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*
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* Makes the mail_display object show the contents of the medium
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* param. This means feeding mail_display->body_stream and
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* mail_display->headers_stream with html.
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*
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**/
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void
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mail_display_set_message (MailDisplay *mail_display,
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CamelMedium *medium)
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{
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GtkAdjustment *adj;
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/*
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* for the moment, camel-formatter deals only with
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* mime messages, but in the future, it should be
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* able to deal with any medium.
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* It can work on pretty much data wrapper, but in
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* fact, only the medium class has the distinction
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* header / body
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*/
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if (!CAMEL_IS_MIME_MESSAGE (medium))
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return;
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/* Clean up from previous message. */
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if (mail_display->current_message) {
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GtkContainer *container =
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GTK_CONTAINER (mail_display->inner_box);
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GList *htmls;
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htmls = gtk_container_children (container);
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while (htmls) {
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gtk_container_remove (container, htmls->data);
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htmls = htmls->next;
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}
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gtk_object_unref (GTK_OBJECT (mail_display->current_message));
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}
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mail_display->current_message = CAMEL_MIME_MESSAGE (medium);
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gtk_object_ref (GTK_OBJECT (medium));
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mail_format_mime_message (CAMEL_MIME_MESSAGE (medium),
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mail_display->inner_box);
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adj = gtk_scrolled_window_get_vadjustment (mail_display->scroll);
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gtk_adjustment_set_value (adj, 0);
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gtk_scrolled_window_set_vadjustment (mail_display->scroll, adj);
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adj = gtk_scrolled_window_get_hadjustment (mail_display->scroll);
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gtk_adjustment_set_value (adj, 0);
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gtk_scrolled_window_set_hadjustment (mail_display->scroll, adj);
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}
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/*----------------------------------------------------------------------*
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* Standard Gtk+ Class functions
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*----------------------------------------------------------------------*/
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static void
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mail_display_init (GtkObject *object)
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{
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MailDisplay *mail_display = MAIL_DISPLAY (object);
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/* various other initializations */
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mail_display->current_message = NULL;
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}
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static void
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mail_display_destroy (GtkObject *object)
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{
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/* MailDisplay *mail_display = MAIL_DISPLAY (object); */
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mail_display_parent_class->destroy (object);
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}
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static void
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mail_display_class_init (GtkObjectClass *object_class)
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{
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object_class->destroy = mail_display_destroy;
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mail_display_parent_class = gtk_type_class (PARENT_TYPE);
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}
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GtkWidget *
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mail_display_new (FolderBrowser *parent_folder_browser)
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{
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MailDisplay *mail_display = gtk_type_new (mail_display_get_type ());
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GtkWidget *scroll, *vbox;
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g_assert (parent_folder_browser);
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mail_display->parent_folder_browser = parent_folder_browser;
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gtk_box_set_homogeneous (GTK_BOX (mail_display), FALSE);
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gtk_widget_show (GTK_WIDGET (mail_display));
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/* For now, the box only contains a single scrolled window,
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* which in turn contains a vbox itself.
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*/
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scroll = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_ALWAYS);
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gtk_box_pack_start_defaults (GTK_BOX (mail_display),
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GTK_WIDGET (scroll));
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gtk_widget_show (GTK_WIDGET (scroll));
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vbox = gtk_vbox_new (FALSE, 2);
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gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scroll),
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vbox);
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gtk_widget_show (GTK_WIDGET (vbox));
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mail_display->scroll = GTK_SCROLLED_WINDOW (scroll);
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mail_display->inner_box = GTK_BOX (vbox);
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return GTK_WIDGET (mail_display);
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}
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E_MAKE_TYPE (mail_display, "MailDisplay", MailDisplay, mail_display_class_init, mail_display_init, PARENT_TYPE);
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