diff options
Diffstat (limited to 'mail/mail-display.c')
| -rw-r--r-- | mail/mail-display.c | 2995 |
1 files changed, 2995 insertions, 0 deletions
diff --git a/mail/mail-display.c b/mail/mail-display.c new file mode 100644 index 0000000000..6c6d9aaf2a --- /dev/null +++ b/mail/mail-display.c @@ -0,0 +1,2995 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Authors: Dan Winship <danw@ximian.com> + * Jeffrey Stedfast <fejj@ximian.com> + * Michael Zucchi <notzed@ximian.com> + * Miguel de Icaza <miguel@ximian.com> + * Larry Ewing <lewing@ximian.com> + * + * Copyright 2002 Ximian, Inc. (www.ximian.com) + * + * 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 Street #330, Boston, MA 02111-1307, USA. + * + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <sys/stat.h> +#include <ctype.h> +#include <fcntl.h> +#include <errno.h> + +#include <gtk/gtkinvisible.h> +#include <libgnome/gnome-program.h> + +#include <gconf/gconf.h> +#include <gconf/gconf-client.h> + +#include <libgnomevfs/gnome-vfs.h> +#include <libgnome/gnome-url.h> +#include <bonobo/bonobo-exception.h> +#include <bonobo/bonobo-control-frame.h> +#include <bonobo/bonobo-stream-memory.h> +#include <bonobo/bonobo-widget.h> +#include <bonobo/bonobo-socket.h> + +#include <gdk/gdkkeysyms.h> +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gdk-pixbuf/gdk-pixbuf-loader.h> +#include <gal/util/e-util.h> +#include <gal/widgets/e-gui-utils.h> +#include <gal/widgets/e-popup-menu.h> + +#include <gtkhtml/gtkhtml.h> +#include <gtkhtml/gtkhtml-embedded.h> +#include <gtkhtml/htmlengine.h> +#include <gtkhtml/htmlobject.h> +#include <gtkhtml/htmltext.h> +#include <gtkhtml/htmlinterval.h> +#include <gtkhtml/gtkhtml-stream.h> + +#include <libsoup/soup-message.h> + +#include "e-util/e-gui-utils.h" +#include "e-util/e-mktemp.h" +#include "addressbook/backend/ebook/e-book-util.h" + +#include "e-searching-tokenizer.h" +#include "folder-browser-factory.h" +#include "mail-display-stream.h" +#include "folder-browser.h" +#include "mail-component.h" +#include "mail-config.h" +#include "mail-display.h" +#include "mail-format.h" +#include "mail-ops.h" +#include "mail-mt.h" +#include "mail.h" + +#include "camel/camel-data-cache.h" + +#define d(x) + +struct _MailDisplayPrivate { + + /* because we want to control resource usage, we need our own queues, etc */ + EDList fetch_active; + EDList fetch_queue; + + /* used to try and make some sense with progress reporting */ + int fetch_total; + int fetch_total_done; + + /* bit hackish, 'fake' an async message and processing, + so we can use that to get cancel and report progress */ + struct _mail_msg *fetch_msg ; + GIOChannel *fetch_cancel_channel; + guint fetch_cancel_watch; + + guint display_notify_id; +}; + +/* max number of connections to download images */ +#define FETCH_MAX_CONNECTIONS (4) + +/* path to http cache in fetch_cache */ +#define FETCH_HTTP_CACHE "http" + +/* for asynchronously downloading remote content */ +struct _remote_data { + struct _remote_data *next; + struct _remote_data *prev; + + MailDisplay *md; /* not ref'd */ + + SoupMessage *msg; + char *uri; + GtkHTML *html; + GtkHTMLStream *stream; + CamelStream *cstream; /* cache stream */ + size_t length; + size_t total; +}; + +static void fetch_remote(MailDisplay *md, const char *uri, GtkHTML *html, GtkHTMLStream *stream); +static void fetch_cancel(MailDisplay *md); +static void fetch_next(MailDisplay *md); +static void fetch_data(SoupMessage *req, void *data); +static void fetch_free(struct _remote_data *rd); +static void fetch_done(SoupMessage *req, void *data); + +/* global http cache, relies on external evolution_dir as well */ +static CamelDataCache *fetch_cache; + +#define PARENT_TYPE (gtk_vbox_get_type ()) + +static GtkObjectClass *mail_display_parent_class; + +struct _PixbufLoader { + CamelDataWrapper *wrapper; /* The data */ + CamelStream *mstream; + GdkPixbufLoader *loader; + GtkHTMLEmbedded *eb; + char *type; /* Type of data, in case the conversion fails */ + char *cid; /* Strdupped on creation, but not freed until + the hashtable is destroyed */ + GtkWidget *pixmap; + guint32 destroy_id; +}; +static GHashTable *thumbnail_cache = NULL; + +/* Drag & Drop types */ +#define TEXT_URI_LIST_TYPE "text/uri-list" + +enum DndTargetType { + DND_TARGET_TYPE_TEXT_URI_LIST, + DND_TARGET_TYPE_PART_MIME_TYPE +}; + +static GtkTargetEntry drag_types[] = { + { TEXT_URI_LIST_TYPE, 0, DND_TARGET_TYPE_TEXT_URI_LIST }, + { NULL, 0, DND_TARGET_TYPE_PART_MIME_TYPE } +}; + +static const int num_drag_types = sizeof (drag_types) / sizeof (drag_types[0]); + +/*----------------------------------------------------------------------* + * Callbacks + *----------------------------------------------------------------------*/ + +static void +write_data_written(CamelMimePart *part, char *name, int done, void *data) +{ + int *ret = data; + + /* should we popup a dialogue to say its done too? */ + *ret = done; +} + +static gboolean +write_data_to_file (CamelMimePart *part, const char *name, gboolean unique) +{ + int fd, ret = FALSE; + + g_return_val_if_fail (CAMEL_IS_MIME_PART (part), FALSE); + + fd = open (name, O_WRONLY | O_CREAT | O_EXCL, 0666); + if (fd == -1 && errno == EEXIST && !unique) { + GtkWidget *dialog; + int button; + + dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, + _("File `%s' already exists.\nOverwrite it?"), + name); + + g_object_set (dialog, "title", _("Overwrite file?"), "allow_grow", TRUE, NULL); + button = gtk_dialog_run ((GtkDialog *) dialog); + gtk_widget_destroy (dialog); + + if (button != GTK_RESPONSE_YES) + return FALSE; + } + + if (fd != -1) + close (fd); + + /* should this have progress of what its doing? */ + mail_msg_wait (mail_save_part (part, name, write_data_written, &ret)); + + return ret; +} + +static char * +make_safe_filename (const char *prefix, CamelMimePart *part) +{ + const char *name; + char *safe, *p; + + name = part ? camel_mime_part_get_filename (part) : NULL; + + if (!name) { + /* This is a filename. Translators take note. */ + name = _("attachment"); + } + + p = strrchr (name, '/'); + if (p) + safe = g_strdup_printf ("%s%s", prefix, p); + else + safe = g_strdup_printf ("%s/%s", prefix, name); + + p = strrchr (safe, '/'); + if (p) + e_filename_make_safe (p + 1); + + return safe; +} + +static void +save_data_cb (GtkWidget *widget, gpointer user_data) +{ + GtkFileSelection *file_select; + GConfClient *gconf; + char *dir; + + file_select = (GtkFileSelection *) gtk_widget_get_ancestor (widget, GTK_TYPE_FILE_SELECTION); + + /* uh, this doesn't really feel right, but i dont know what to do better */ + gtk_widget_hide (GTK_WIDGET (file_select)); + write_data_to_file (user_data, gtk_file_selection_get_filename (file_select), FALSE); + + /* preserve the pathname */ + dir = g_path_get_dirname (gtk_file_selection_get_filename (file_select)); + gconf = mail_config_get_gconf_client (); + gconf_client_set_string (gconf, "/apps/evolution/mail/save_dir", dir, NULL); + g_free (dir); + + gtk_widget_destroy (GTK_WIDGET (file_select)); +} + +static void +save_destroy_cb (CamelMimePart *part, GObject *deadbeef) +{ + camel_object_unref (part); +} + +static gboolean +idle_redisplay (gpointer data) +{ + MailDisplay *md = data; + + md->idle_id = 0; + mail_display_redisplay (md, FALSE); + + return FALSE; +} + +void +mail_display_queue_redisplay (MailDisplay *md) +{ + if (!md->idle_id) { + md->idle_id = g_idle_add_full (G_PRIORITY_LOW, idle_redisplay, + md, NULL); + } +} + +static void +mail_display_jump_to_anchor (MailDisplay *md, const char *url) +{ + char *anchor = strstr (url, "#"); + + g_return_if_fail (anchor != NULL); + + if (anchor) + gtk_html_jump_to_anchor (md->html, anchor + 1); +} + +static void +on_link_clicked (GtkHTML *html, const char *url, MailDisplay *md) +{ + if (!strncasecmp (url, "mailto:", 7)) { + send_to_url (url, NULL); + } else if (*url == '#') { + mail_display_jump_to_anchor (md, url); + } else { + GError *err = NULL; + + gnome_url_show (url, &err); + + if (err) { + g_warning ("gnome_url_show: %s", err->message); + g_error_free (err); + } + } +} + +static void +save_part (CamelMimePart *part) +{ + char *filename, *dir, *home, *base; + GtkFileSelection *file_select; + GConfClient *gconf; + + camel_object_ref (part); + + home = getenv ("HOME"); + gconf = mail_config_get_gconf_client (); + dir = gconf_client_get_string (gconf, "/apps/evolution/mail/save_dir", NULL); + filename = make_safe_filename (dir ? dir : (home ? home : ""), part); + g_free (dir); + + file_select = GTK_FILE_SELECTION (gtk_file_selection_new (_("Save Attachment"))); + gtk_file_selection_set_filename (file_select, filename); + /* set the GtkEntry with the locale filename by breaking abstraction */ + base = g_path_get_basename (filename); + gtk_entry_set_text (GTK_ENTRY (file_select->selection_entry), base); + g_free (filename); + g_free (base); + + g_signal_connect (file_select->ok_button, "clicked", + G_CALLBACK (save_data_cb), part); + + g_signal_connect_swapped (file_select->cancel_button, "clicked", + G_CALLBACK (gtk_widget_destroy), file_select); + + g_object_weak_ref ((GObject *) file_select, (GWeakNotify) save_destroy_cb, part); + + gtk_widget_show (GTK_WIDGET (file_select)); +} + +static void +save_cb (GtkWidget *widget, gpointer user_data) +{ + CamelMimePart *part = g_object_get_data ((GObject *) user_data, "CamelMimePart"); + + save_part (part); +} + +static void +launch_cb (GtkWidget *widget, gpointer user_data) +{ + CamelMimePart *part = g_object_get_data(user_data, "CamelMimePart"); + MailMimeHandler *handler; + GList *apps, *children, *c; + GnomeVFSMimeApplication *app; + char *command, *filename; + const char *tmpdir; + + handler = mail_lookup_handler (g_object_get_data(user_data, "mime_type")); + g_return_if_fail (handler != NULL && handler->applications != NULL); + + /* Yum. Too bad EPopupMenu doesn't allow per-item closures. */ + children = gtk_container_get_children (GTK_CONTAINER (widget->parent)); + /* We need to bypass the first 2 menu items */ + g_return_if_fail (children != NULL && children->next != NULL + && children->next->next != NULL && children->next->next->next != NULL); + + for (c = children->next->next->next, apps = handler->applications; c && apps; c = c->next, apps = apps->next) { + if (c->data == widget) + break; + } + g_list_free (children); + g_return_if_fail (c != NULL && apps != NULL); + app = apps->data; + + tmpdir = e_mkdtemp ("app-launcher-XXXXXX"); + + if (!tmpdir) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_RESPONSE_CLOSE, + _("Could not create temporary directory: %s"), + g_strerror (errno)); + + /* FIXME: this should be async */ + gtk_dialog_run ((GtkDialog *) dialog); + gtk_widget_destroy (dialog); + return; + } + + filename = make_safe_filename (tmpdir, part); + + if (!write_data_to_file (part, filename, TRUE)) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_RESPONSE_CLOSE, + _("Could not create temporary file '%s': %s"), + filename, g_strerror (errno)); + + /* FIXME: this should be async */ + gtk_dialog_run ((GtkDialog *) dialog); + gtk_widget_destroy (dialog); + g_free (filename); + return; + } + + command = g_strdup_printf ("%s %s%s &", app->command, + app->expects_uris == GNOME_VFS_MIME_APPLICATION_ARGUMENT_TYPE_URIS ? + "file://" : "", filename); + g_free (filename); + + system (command); + g_free (command); +} + +static void +inline_cb (GtkWidget *widget, gpointer user_data) +{ + MailDisplay *md = g_object_get_data (user_data, "MailDisplay"); + CamelMimePart *part = g_object_get_data (user_data, "CamelMimePart"); + + mail_part_toggle_displayed (part, md); + mail_display_queue_redisplay (md); +} + +static void +save_all_parts_cb (GtkWidget *widget, gpointer user_data) +{ + GtkFileSelection *dir_select = (GtkFileSelection *) + gtk_widget_get_ancestor (widget, GTK_TYPE_FILE_SELECTION); + const char *filename; + char *save_filename, *dir; + struct stat st; + int i; + GPtrArray *attachment_array; + CamelMimePart *part; + GConfClient *gconf; + + gtk_widget_hide (GTK_WIDGET (dir_select)); + + /* Get the selected directory name */ + filename = gtk_file_selection_get_filename (dir_select); + if (stat (filename, &st) == -1 || !S_ISDIR (st.st_mode)) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, + _("%s is not a valid directory name."), filename); + + /* FIXME: this should be async */ + gtk_dialog_run ((GtkDialog *) dialog); + gtk_widget_destroy (dialog); + gtk_widget_destroy (GTK_WIDGET (dir_select)); + return; + } else { + dir = g_strdup (filename); + } + + /* Now save the attachment one by one */ + attachment_array = (GPtrArray *)user_data; + for (i = 0; i < attachment_array->len; i++) { + part = g_ptr_array_index (attachment_array, i); + save_filename = make_safe_filename (dir, part); + write_data_to_file (part, save_filename, FALSE); + g_free (save_filename); + } + + /* preserve the pathname */ + gconf = mail_config_get_gconf_client (); + gconf_client_set_string (gconf, "/apps/evolution/mail/save_dir", dir, NULL); + g_free (dir); + + gtk_widget_destroy (GTK_WIDGET (dir_select)); +} + +static void +save_all_parts (GPtrArray *attachment_array) +{ + GtkFileSelection *dir_select; + char *dir, *home, *dir2; + GConfClient *gconf; + + g_return_if_fail (attachment_array != NULL); + + home = getenv ("HOME"); + gconf = mail_config_get_gconf_client (); + dir = gconf_client_get_string (gconf, "/apps/evolution/mail/save_dir", NULL); + dir = dir ? dir : (home ? g_strdup (home) : g_strdup ("")); + + /* Make sure dir2 has a '/' as its tail */ + dir2 = g_strdup_printf ("%s/", dir); + g_free (dir); + + dir_select = GTK_FILE_SELECTION ( + gtk_file_selection_new (_("Select Directory for Attachments"))); + gtk_file_selection_set_filename (dir_select, dir2); + gtk_widget_set_sensitive (dir_select->file_list, FALSE); + gtk_widget_hide (dir_select->selection_entry); + g_free (dir2); + + g_signal_connect (dir_select->ok_button, "clicked", + G_CALLBACK (save_all_parts_cb), attachment_array); + g_signal_connect_swapped (dir_select->cancel_button, + "clicked", + G_CALLBACK (gtk_widget_destroy), + dir_select); + + gtk_widget_show (GTK_WIDGET (dir_select)); +} + +static void +save_all_cb (GtkWidget *widget, gpointer user_data) +{ + MailDisplay *md = g_object_get_data (user_data, "MailDisplay"); + GPtrArray *attachment_array; + + if (md == NULL) { + g_warning ("No MailDisplay!"); + return; + } + + attachment_array = g_datalist_get_data (md->data, "attachment_array"); + save_all_parts (attachment_array); +} + +static void +inline_toggle(MailDisplay *md, CamelMimePart *part) +{ + g_return_if_fail(md != NULL); + + mail_part_toggle_displayed (part, md); + mail_display_queue_redisplay (md); +} + +static void +inline_button_clicked(GtkWidget *widget, CamelMimePart *part) +{ + inline_toggle((MailDisplay *)g_object_get_data((GObject *)widget, "MailDisplay"), part); +} + +static gboolean +inline_button_press(GtkWidget *widget, GdkEventKey *event, CamelMimePart *part) +{ + if (event->keyval != GDK_Return) + return FALSE; + + inline_toggle((MailDisplay *)g_object_get_data((GObject *)widget, "MailDisplay"), part); + + return TRUE; +} + +static void +popup_menu_placement_callback(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer user_data) +{ + GtkWidget *widget = (GtkWidget*) user_data; + + gdk_window_get_origin (gtk_widget_get_parent_window (widget), x, y); + *x += widget->allocation.x + widget->allocation.width; + *y += widget->allocation.y; + + return; +} + +static gboolean +pixmap_press (GtkWidget *widget, GdkEvent *event, gpointer user_data) +{ + EPopupMenu *menu; + GtkMenu *gtk_menu; + EPopupMenu save_item = E_POPUP_ITEM (N_("Save Attachment..."), G_CALLBACK (save_cb), 0); + EPopupMenu save_all_item = E_POPUP_ITEM (N_("Save all attachments..."), G_CALLBACK (save_all_cb), 0); + EPopupMenu view_item = E_POPUP_ITEM (N_("View Inline"), G_CALLBACK (inline_cb), 2); + EPopupMenu open_item = E_POPUP_ITEM (N_("Open in %s..."), G_CALLBACK (launch_cb), 1); + MailDisplay *md; + CamelMimePart *part; + MailMimeHandler *handler; + int mask = 0, i, nitems; + int current_item = 0; + + if (event->type == GDK_BUTTON_PRESS) { +#ifdef USE_OLD_DISPLAY_STYLE + if (event->button.button != 3) { + gtk_propagate_event (GTK_WIDGET (user_data), + (GdkEvent *)event); + return TRUE; + } +#endif + + if (event->button.button != 1 && event->button.button != 3) { + gtk_propagate_event (GTK_WIDGET (user_data), + (GdkEvent *)event); + return TRUE; + } + /* Stop the signal, since we don't want the button's class method to + mess up our popup. */ + g_signal_stop_emission_by_name (widget, "button_press_event"); + } else { + if (event->key.keyval != GDK_Return) + return FALSE; + } + + part = g_object_get_data ((GObject *) widget, "CamelMimePart"); + handler = mail_lookup_handler (g_object_get_data ((GObject *) widget, "mime_type")); + + if (handler && handler->applications) + nitems = g_list_length (handler->applications) + 3; + else + nitems = 4; + menu = g_new0 (EPopupMenu, nitems + 1); + + /* Save item */ + memcpy (&menu[current_item], &save_item, sizeof (menu[current_item])); + menu[current_item].name = g_strdup (_(menu[current_item].name)); + current_item++; + + /* Save All item */ + memcpy (&menu[current_item], &save_all_item, sizeof (menu[current_item])); + menu[current_item].name = g_strdup (_(menu[current_item].name)); + current_item++; + + /* Inline view item */ + memcpy (&menu[current_item], &view_item, sizeof (menu[current_item])); + if (handler && handler->builtin) { + md = g_object_get_data ((GObject *) widget, "MailDisplay"); + + if (!mail_part_is_displayed_inline (part, md)) { + if (handler->component) { + Bonobo_ActivationProperty *prop; + char *name; + + prop = bonobo_server_info_prop_find (handler->component, "name"); + if (!prop) { + prop = bonobo_server_info_prop_find (handler->component, + "description"); + } + if (prop && prop->v._d == Bonobo_ACTIVATION_P_STRING) + name = prop->v._u.value_string; + else + name = "bonobo"; + menu[current_item].name = g_strdup_printf (_("View Inline (via %s)"), name); + } else + menu[current_item].name = g_strdup (_(menu[current_item].name)); + } else + menu[current_item].name = g_strdup (_("Hide")); + } else { + menu[current_item].name = g_strdup (_(menu[current_item].name)); + mask |= 2; + } + current_item++; + + /* External views */ + if (handler && handler->applications) { + GnomeVFSMimeApplication *app; + GList *apps; + int i; + + apps = handler->applications; + for (i = current_item; i < nitems; i++, apps = apps->next) { + app = apps->data; + memcpy (&menu[i], &open_item, sizeof (menu[i])); + menu[i].name = g_strdup_printf (_(menu[i].name), app->name); + current_item++; + } + } else { + memcpy (&menu[current_item], &open_item, sizeof (menu[current_item])); + menu[current_item].name = g_strdup_printf (_(menu[current_item].name), _("External Viewer")); + mask |= 1; + } + + gtk_menu = e_popup_menu_create (menu, mask, 0, widget); + e_auto_kill_popup_menu_on_selection_done (gtk_menu); + + if (event->type == GDK_BUTTON_PRESS) + gtk_menu_popup (gtk_menu, NULL, NULL, NULL, (gpointer)widget, event->button.button, event->button.time); + else + gtk_menu_popup (gtk_menu, NULL, NULL, popup_menu_placement_callback, (gpointer)widget, 0, event->key.time); + + for (i = 1; i < nitems; i++) + g_free (menu[i].name); + g_free (menu); + + return TRUE; +} + +static gboolean +pixbuf_uncache (gpointer key) +{ + GdkPixbuf *pixbuf; + + pixbuf = g_hash_table_lookup (thumbnail_cache, key); + g_object_unref (pixbuf); + g_hash_table_remove (thumbnail_cache, key); + g_free (key); + return FALSE; +} + +static gint +pixbuf_gen_idle (struct _PixbufLoader *pbl) +{ + GdkPixbuf *pixbuf, *mini; + gboolean error = FALSE; + char tmp[4096]; + int len, width, height, ratio; + gpointer orig_key; + + /* Get the pixbuf from the cache */ + if (g_hash_table_lookup_extended (thumbnail_cache, pbl->cid, + &orig_key, (gpointer *)&mini)) { + width = gdk_pixbuf_get_width (mini); + height = gdk_pixbuf_get_height (mini); + + gtk_image_set_from_pixbuf ((GtkImage *) pbl->pixmap, mini); + gtk_widget_set_size_request (pbl->pixmap, width, height); + + /* Restart the cache-cleaning timer */ + g_source_remove_by_user_data (orig_key); + g_timeout_add (5 * 60 * 1000, pixbuf_uncache, orig_key); + + if (pbl->loader) { + gdk_pixbuf_loader_close (pbl->loader, NULL); + g_object_unref (pbl->loader); + camel_object_unref (pbl->mstream); + } + + g_signal_handler_disconnect (pbl->eb, pbl->destroy_id); + g_free (pbl->type); + g_free (pbl->cid); + g_free (pbl); + + return FALSE; + } + + /* Not in cache, so get a pixbuf from the wrapper */ + + if (!GTK_IS_WIDGET (pbl->pixmap)) { + /* Widget has died */ + if (pbl->mstream) + camel_object_unref (pbl->mstream); + + if (pbl->loader) { + gdk_pixbuf_loader_close (pbl->loader, NULL); + g_object_unref (pbl->loader); + } + + g_signal_handler_disconnect (pbl->eb, pbl->destroy_id); + g_free (pbl->type); + g_free (pbl->cid); + g_free (pbl); + + return FALSE; + } + + if (pbl->mstream) { + if (pbl->loader == NULL) + pbl->loader = gdk_pixbuf_loader_new (); + + len = camel_stream_read (pbl->mstream, tmp, 4096); + if (len > 0) { + error = !gdk_pixbuf_loader_write (pbl->loader, tmp, len, NULL); + if (!error) + return TRUE; + } else if (!camel_stream_eos (pbl->mstream)) + error = TRUE; + } + + if (error || !pbl->mstream) { + if (pbl->type) + pixbuf = e_icon_for_mime_type (pbl->type, 24); + else + pixbuf = gdk_pixbuf_new_from_file (EVOLUTION_ICONSDIR "/pgp-signature-nokey.png", NULL); + } else + pixbuf = gdk_pixbuf_loader_get_pixbuf (pbl->loader); + + if (pixbuf == NULL) { + /* pixbuf is non-existant */ + if (pbl->mstream) + camel_object_unref (pbl->mstream); + + if (pbl->loader) { + gdk_pixbuf_loader_close (pbl->loader, NULL); + g_object_unref (pbl->loader); + } + + g_signal_handler_disconnect (pbl->eb, pbl->destroy_id); + g_free (pbl->type); + g_free (pbl->cid); + g_free (pbl); + + return FALSE; + } + + width = gdk_pixbuf_get_width (pixbuf); + height = gdk_pixbuf_get_height (pixbuf); + + if (width >= height) { + if (width > 24) { + ratio = width / 24; + width = 24; + height /= ratio; + } + } else { + if (height > 24) { + ratio = height / 24; + height = 24; + width /= ratio; + } + } + + mini = gdk_pixbuf_scale_simple (pixbuf, width, height, GDK_INTERP_BILINEAR); + if (error || !pbl->mstream) + g_object_unref (pixbuf); + + gtk_image_set_from_pixbuf ((GtkImage *) pbl->pixmap, mini); + + /* Add the pixbuf to the cache */ + g_hash_table_insert (thumbnail_cache, pbl->cid, mini); + g_timeout_add (5 * 60 * 1000, pixbuf_uncache, pbl->cid); + + g_signal_handler_disconnect (pbl->eb, pbl->destroy_id); + if (pbl->loader) { + gdk_pixbuf_loader_close (pbl->loader, NULL); + g_object_unref (pbl->loader); + camel_object_unref (pbl->mstream); + } + + g_free (pbl->type); + g_free (pbl); + + return FALSE; +} + +/* Stop the idle function and free the pbl structure + as the widget that the pixbuf was to be rendered to + has died on us. */ +static void +embeddable_destroy_cb (GtkObject *embeddable, struct _PixbufLoader *pbl) +{ + g_idle_remove_by_data (pbl); + if (pbl->mstream) + camel_object_unref (pbl->mstream); + + if (pbl->loader) { + gdk_pixbuf_loader_close (pbl->loader, NULL); + g_object_unref (pbl->loader); + } + + g_free (pbl->type); + g_free (pbl->cid); + g_free (pbl); +}; + +static GtkWidget * +get_embedded_for_component (const char *iid, MailDisplay *md) +{ + GtkWidget *embedded; + BonoboControlFrame *control_frame; + Bonobo_PropertyBag prop_bag; + + /* + * First try a control. + */ + embedded = bonobo_widget_new_control (iid, NULL); + if (embedded == NULL) { +#warning "what about bonobo_widget_new_subdoc?" +#if 0 + /* + * No control, try an embeddable instead. + */ + embedded = bonobo_widget_new_subdoc (iid, NULL); + if (embedded != NULL) { + /* FIXME: as of bonobo 0.18, there's an extra + * client_site dereference in the BonoboWidget + * destruction path that we have to balance out to + * prevent problems. + */ + bonobo_object_ref (BONOBO_OBJECT (bonobo_widget_get_client_site ( + BONOBO_WIDGET (embedded)))); + + return embedded; + } +#endif + } + + if (embedded == NULL) + return NULL; + + control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (embedded)); + + prop_bag = bonobo_control_frame_get_control_property_bag (control_frame, NULL); + + if (prop_bag != CORBA_OBJECT_NIL) { + CORBA_Environment ev; + /* + * Now we can take care of business. Currently, the only control + * that needs something passed to it through a property bag is + * the iTip control, and it needs only the From email address, + * but perhaps in the future we can generalize this section of code + * to pass a bunch of useful things to all embedded controls. + */ + const CamelInternetAddress *from; + char *from_address; + + CORBA_exception_init (&ev); + + from = camel_mime_message_get_from (md->current_message); + from_address = camel_address_encode ((CamelAddress *) from); + bonobo_property_bag_client_set_value_string ( + prop_bag, "from_address", + from_address, &ev); + g_free (from_address); + + Bonobo_Unknown_unref (prop_bag, &ev); + CORBA_exception_free (&ev); + } + + return embedded; +} + +static void * +save_url (MailDisplay *md, const char *url) +{ + GHashTable *urls; + CamelMimePart *part; + + urls = g_datalist_get_data (md->data, "part_urls"); + g_return_val_if_fail (url != NULL, NULL); + g_return_val_if_fail (urls != NULL, NULL); + + part = g_hash_table_lookup (urls, url); + if (part == NULL) { + CamelDataWrapper *wrapper; + CamelStream *stream = NULL; + const char *name; + + /* See if it's some piece of cached data if it is then pretend it + * is a mime part so that we can use the mime part saving routines. + * It is gross but it keeps duplicated code to a minimum and helps + * out with ref counting and the like. + */ + name = strrchr (url, '/'); + name = name ? name : url; + + if (fetch_cache) { + /* look in the soup cache */ + stream = camel_data_cache_get(fetch_cache, FETCH_HTTP_CACHE, url, NULL); + } else { + GByteArray *ba = NULL; + + urls = g_datalist_get_data (md->data, "data_urls"); + g_return_val_if_fail (urls != NULL, NULL); + + ba = g_hash_table_lookup (urls, url); + if (ba) { + /* we have to copy the data here since the ba may be long gone + * by the time the user actually saves the file + */ + stream = camel_stream_mem_new_with_buffer (ba->data, ba->len); + } + } + + if (stream) { + wrapper = camel_data_wrapper_new (); + camel_data_wrapper_construct_from_stream (wrapper, stream); + camel_object_unref (stream); + part = camel_mime_part_new (); + camel_medium_set_content_object (CAMEL_MEDIUM (part), wrapper); + camel_object_unref (wrapper); + camel_mime_part_set_filename (part, name); + } + } else { + camel_object_ref (part); + } + + if (part) { + CamelDataWrapper *data; + + g_return_val_if_fail (CAMEL_IS_MIME_PART (part), NULL); + + data = camel_medium_get_content_object ((CamelMedium *)part); + if (!mail_content_loaded (data, md, TRUE, NULL, NULL, NULL)) { + return NULL; + } + + save_part (part); + camel_object_unref (part); + return NULL; + } + + g_warning ("Data for url: \"%s\" not found", url); + + return NULL; +} + +static void +drag_data_get_cb (GtkWidget *widget, + GdkDragContext *drag_context, + GtkSelectionData *selection_data, + guint info, + guint time, + gpointer user_data) +{ + CamelMimePart *part = user_data; + const char *filename, *tmpdir; + char *uri_list; + + switch (info) { + case DND_TARGET_TYPE_TEXT_URI_LIST: + /* Kludge around Nautilus requesting the same data many times */ + uri_list = g_object_get_data ((GObject *) widget, "uri-list"); + if (uri_list) { + gtk_selection_data_set (selection_data, selection_data->target, 8, + uri_list, strlen (uri_list)); + return; + } + + tmpdir = e_mkdtemp ("drag-n-drop-XXXXXX"); + if (!tmpdir) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_RESPONSE_CLOSE, + _("Could not create temporary directory: %s"), + g_strerror (errno)); + + /* FIXME: this should be async */ + gtk_dialog_run ((GtkDialog *) dialog); + gtk_widget_destroy (dialog); + } + + filename = camel_mime_part_get_filename (part); + /* This is the default filename used for dnd temporary target of attachment */ + if (!filename) + filename = _("Unknown"); + + uri_list = g_strdup_printf ("file://%s/%s", tmpdir, filename); + + if (!write_data_to_file (part, uri_list + 7, TRUE)) { + g_free (uri_list); + return; + } + + gtk_selection_data_set (selection_data, selection_data->target, 8, + uri_list, strlen (uri_list)); + + g_object_set_data_full ((GObject *) widget, "uri-list", uri_list, g_free); + break; + case DND_TARGET_TYPE_PART_MIME_TYPE: + if (header_content_type_is (((CamelDataWrapper *) part)->mime_type, "text", "*")) { + GByteArray *ba; + + ba = mail_format_get_data_wrapper_text ((CamelDataWrapper *) part, NULL); + if (ba) { + gtk_selection_data_set (selection_data, selection_data->target, 8, + ba->data, ba->len); + g_byte_array_free (ba, TRUE); + } + } else { + CamelDataWrapper *wrapper; + CamelStreamMem *mem; + + mem = (CamelStreamMem *) camel_stream_mem_new (); + wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); + camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) mem); + + gtk_selection_data_set (selection_data, selection_data->target, 8, + mem->buffer->data, mem->buffer->len); + + camel_object_unref (mem); + } + break; + default: + g_assert_not_reached (); + } +} + +static void +drag_data_delete_cb (GtkWidget *widget, + GdkDragContext *drag_context, + gpointer user_data) +{ + char *uri_list; + + uri_list = g_object_get_data ((GObject *) widget, "uri-list"); + if (uri_list) { + unlink (uri_list + 7); + g_object_set_data ((GObject *) widget, "uri-list", NULL); + } +} + +/* This is a wrapper function */ +void ptr_array_free_notify (gpointer array) +{ + g_ptr_array_free ((GPtrArray *) array, TRUE); +} + +static gboolean +do_attachment_header (GtkHTML *html, GtkHTMLEmbedded *eb, + CamelMimePart *part, MailDisplay *md) +{ + GtkWidget *button, *mainbox, *hbox, *arrow, *popup; + MailMimeHandler *handler; + struct _PixbufLoader *pbl; + GPtrArray *attachment_array; + + pbl = g_new0 (struct _PixbufLoader, 1); + if (strncasecmp (eb->type, "image/", 6) == 0) { + CamelDataWrapper *content; + + content = camel_medium_get_content_object (CAMEL_MEDIUM (part)); + if (!camel_data_wrapper_is_offline (content)) { + pbl->mstream = camel_stream_mem_new (); + camel_data_wrapper_decode_to_stream (content, pbl->mstream); + camel_stream_reset (pbl->mstream); + } + } + + pbl->type = g_strdup (eb->type); + pbl->cid = g_strdup (eb->classid + 6); + pbl->pixmap = gtk_image_new(); + gtk_widget_set_size_request (pbl->pixmap, 24, 24); + pbl->eb = eb; + pbl->destroy_id = g_signal_connect (eb, "destroy", G_CALLBACK (embeddable_destroy_cb), pbl); + + g_idle_add_full (G_PRIORITY_LOW, (GSourceFunc) pixbuf_gen_idle, pbl, NULL); + + mainbox = gtk_hbox_new (FALSE, 0); + + button = gtk_button_new (); + g_object_set_data ((GObject *) button, "MailDisplay", md); + + handler = mail_lookup_handler (eb->type); + if (handler && handler->builtin) { + g_signal_connect (button, "clicked", G_CALLBACK (inline_button_clicked), part); + g_signal_connect (button, "key_press_event", G_CALLBACK (inline_button_press), part); + } else { + gtk_widget_set_sensitive (button, FALSE); + GTK_WIDGET_UNSET_FLAGS (button, GTK_CAN_FOCUS); + } + + /* Drag & Drop */ + drag_types[DND_TARGET_TYPE_PART_MIME_TYPE].target = header_content_type_simple (((CamelDataWrapper *) part)->mime_type); + camel_strdown (drag_types[DND_TARGET_TYPE_PART_MIME_TYPE].target); + + gtk_drag_source_set (button, GDK_BUTTON1_MASK, + drag_types, num_drag_types, + GDK_ACTION_COPY); + g_signal_connect (button, "drag-data-get", G_CALLBACK (drag_data_get_cb), part); + g_signal_connect (button, "drag-data-delete", G_CALLBACK (drag_data_delete_cb), part); + + g_free (drag_types[DND_TARGET_TYPE_PART_MIME_TYPE].target); + drag_types[DND_TARGET_TYPE_PART_MIME_TYPE].target = NULL; + + hbox = gtk_hbox_new (FALSE, 2); + gtk_container_set_border_width (GTK_CONTAINER (hbox), 2); + + /* should this be a gtk_arrow? */ + if (handler && mail_part_is_displayed_inline (part, md)) + arrow = gtk_image_new_from_stock (GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_BUTTON); + else + arrow = gtk_image_new_from_stock (GTK_STOCK_GO_FORWARD, GTK_ICON_SIZE_BUTTON); + gtk_box_pack_start (GTK_BOX (hbox), arrow, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (hbox), pbl->pixmap, TRUE, TRUE, 0); + gtk_container_add (GTK_CONTAINER (button), hbox); + + popup = gtk_button_new (); + gtk_container_add (GTK_CONTAINER (popup), + gtk_arrow_new (GTK_ARROW_DOWN, + GTK_SHADOW_ETCHED_IN)); + + g_object_set_data ((GObject *) popup, "MailDisplay", md); + g_object_set_data ((GObject *) popup, "CamelMimePart", part); + g_object_set_data_full ((GObject *) popup, "mime_type", g_strdup (eb->type), (GDestroyNotify) g_free); + + /* Save attachment pointer in an array for "save all attachment" use */ + attachment_array = g_datalist_get_data (md->data, "attachment_array"); + if (!attachment_array) { + attachment_array = g_ptr_array_new (); + g_datalist_set_data_full (md->data, "attachment_array", + attachment_array, (GDestroyNotify) ptr_array_free_notify); + } + /* Since the attachment pointer might have been added to the array before, + remove it first anyway to avoide duplication */ + g_ptr_array_remove (attachment_array, part); + g_ptr_array_add (attachment_array, part); + + + g_signal_connect (popup, "button_press_event", G_CALLBACK (pixmap_press), md->scroll); + g_signal_connect (popup, "key_press_event", G_CALLBACK (pixmap_press), md->scroll); + + gtk_box_pack_start (GTK_BOX (mainbox), button, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (mainbox), popup, TRUE, TRUE, 0); + gtk_widget_show_all (mainbox); + + gtk_container_add (GTK_CONTAINER (eb), mainbox); + + return TRUE; +} + +static gboolean +do_external_viewer (GtkHTML *html, GtkHTMLEmbedded *eb, + CamelMimePart *part, MailDisplay *md) +{ + CamelDataWrapper *wrapper; + Bonobo_ServerInfo *component; + GtkWidget *embedded; + Bonobo_PersistStream persist; + CORBA_Environment ev; + CamelStreamMem *cstream; + BonoboStream *bstream; + MailMimeHandler *handler; + + handler = mail_lookup_handler (eb->type); + if (!handler || !handler->is_bonobo) + return FALSE; + + component = gnome_vfs_mime_get_default_component (eb->type); + if (!component) + return FALSE; + + embedded = get_embedded_for_component (component->iid, md); + CORBA_free (component); + if (!embedded) + return FALSE; + + persist = (Bonobo_PersistStream) Bonobo_Unknown_queryInterface ( + bonobo_widget_get_objref (BONOBO_WIDGET (embedded)), + "IDL:Bonobo/PersistStream:1.0", NULL); + + if (persist == CORBA_OBJECT_NIL) { + gtk_object_sink (GTK_OBJECT (embedded)); + return FALSE; + } + + /* Write the data to a CamelStreamMem... */ + cstream = (CamelStreamMem *) camel_stream_mem_new (); + wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); + camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *)cstream); + + /* ...convert the CamelStreamMem to a BonoboStreamMem... */ + bstream = bonobo_stream_mem_create (cstream->buffer->data, cstream->buffer->len, TRUE, FALSE); + camel_object_unref (cstream); + + /* ...and hydrate the PersistStream from the BonoboStream. */ + CORBA_exception_init (&ev); + Bonobo_PersistStream_load (persist, + bonobo_object_corba_objref (BONOBO_OBJECT (bstream)), + eb->type, &ev); + bonobo_object_unref (BONOBO_OBJECT (bstream)); + Bonobo_Unknown_unref (persist, &ev); + CORBA_Object_release (persist, &ev); + + if (ev._major != CORBA_NO_EXCEPTION) { + gtk_object_sink (GTK_OBJECT (embedded)); + CORBA_exception_free (&ev); + return FALSE; + } + CORBA_exception_free (&ev); + + gtk_widget_show (embedded); + gtk_container_add (GTK_CONTAINER (eb), embedded); + + return TRUE; +} + +static gboolean +do_signature (GtkHTML *html, GtkHTMLEmbedded *eb, + CamelMimePart *part, MailDisplay *md) +{ + GtkWidget *button; + struct _PixbufLoader *pbl; + + pbl = g_new0 (struct _PixbufLoader, 1); + pbl->type = NULL; + pbl->cid = g_strdup (eb->classid); + pbl->pixmap = gtk_image_new (); + gtk_widget_set_size_request (pbl->pixmap, 24, 24); + pbl->eb = eb; + pbl->destroy_id = g_signal_connect (eb, "destroy", G_CALLBACK (embeddable_destroy_cb), pbl); + + g_idle_add_full (G_PRIORITY_LOW, (GSourceFunc) pixbuf_gen_idle, pbl, NULL); + + button = gtk_button_new (); + g_object_set_data ((GObject *) button, "MailDisplay", md); + g_signal_connect (button, "clicked", G_CALLBACK (inline_button_clicked), part); + g_signal_connect (button, "key_press_event", G_CALLBACK (inline_button_press), part); + + gtk_container_add (GTK_CONTAINER (button), pbl->pixmap); + gtk_widget_show_all (button); + gtk_container_add (GTK_CONTAINER (eb), button); + + return TRUE; +} + +static gboolean +on_object_requested (GtkHTML *html, GtkHTMLEmbedded *eb, gpointer data) +{ + MailDisplay *md = data; + GHashTable *urls; + CamelMimePart *part; + + if (!eb->classid) + return FALSE; + + urls = g_datalist_get_data (md->data, "part_urls"); + if (!urls) + return FALSE; + + if (!strncmp (eb->classid, "popup:", 6) && eb->type) { + part = g_hash_table_lookup (urls, eb->classid + 6); + if (!CAMEL_IS_MIME_PART (part)) + return FALSE; + return do_attachment_header (html, eb, part, md); + } else if (!strncmp (eb->classid, "signature:", 10)) { + part = g_hash_table_lookup (urls, eb->classid); + if (!CAMEL_IS_MIME_PART (part)) + return FALSE; + return do_signature (html, eb, part, md); + } else if (!strncmp (eb->classid, "cid:", 4) && eb->type) { + part = g_hash_table_lookup (urls, eb->classid); + if (!CAMEL_IS_MIME_PART (part)) + return FALSE; + return do_external_viewer (html, eb, part, md); + } + + return FALSE; +} + +static void +ebook_callback (EBook *book, const gchar *addr, ECard *card, gpointer data) +{ + MailDisplay *md = data; + + if (card && md->current_message) { + const CamelInternetAddress *from = camel_mime_message_get_from (md->current_message); + const char *md_name = NULL, *md_addr = NULL; + + /* We are extra anal, in case we are dealing with some sort of pathological message + w/o a From: header. */ + if (from != NULL && camel_internet_address_get (from, 0, &md_name, &md_addr)) { + if (md_addr != NULL && !strcmp (addr, md_addr)) + mail_display_load_images (md); + } + } +} + +static void +on_url_requested (GtkHTML *html, const char *url, GtkHTMLStream *handle, + gpointer user_data) +{ + MailDisplay *md = user_data; + GConfClient *gconf; + GHashTable *urls; + CamelMedium *medium; + GByteArray *ba; + + gconf = mail_config_get_gconf_client (); + + urls = g_datalist_get_data (md->data, "part_urls"); + g_return_if_fail (urls != NULL); + + /* See if it refers to a MIME part (cid: or http:) */ + medium = g_hash_table_lookup (urls, url); + if (medium) { + CamelContentType *content_type; + CamelDataWrapper *wrapper; + CamelStream *html_stream; + + g_return_if_fail (CAMEL_IS_MEDIUM (medium)); + + if (md->related) + g_hash_table_remove (md->related, medium); + + wrapper = camel_medium_get_content_object (medium); + if (!mail_content_loaded (wrapper, md, FALSE, url, html, handle)) + return; + + content_type = camel_data_wrapper_get_mime_type_field (wrapper); + + html_stream = mail_display_stream_new (html, handle); + + if (header_content_type_is (content_type, "text", "*")) { + mail_format_data_wrapper_write_to_stream (wrapper, TRUE, md, html_stream); + } else { + camel_data_wrapper_decode_to_stream (wrapper, html_stream); + } + + camel_object_unref (html_stream); + + gtk_html_end (html, handle, GTK_HTML_STREAM_OK); + return; + } + + urls = g_datalist_get_data (md->data, "data_urls"); + g_return_if_fail (urls != NULL); + + /* See if it's some piece of cached data */ + ba = g_hash_table_lookup (urls, url); + if (ba) { + if (ba->len) { + gtk_html_write (html, handle, ba->data, ba->len); + /* printf ("-- begin --\n"); + printf (ba->data); + printf ("-- end --\n"); */ + } + gtk_html_end (html, handle, GTK_HTML_STREAM_OK); + return; + } + + /* See if it's something we can load. */ + if (strncmp (url, "http:", 5) == 0 || strncmp (url, "https:", 6) == 0) { + int http_mode; + + http_mode = gconf_client_get_int (gconf, "/apps/evolution/mail/display/load_http_images", NULL); + if (http_mode == MAIL_CONFIG_HTTP_ALWAYS || + g_datalist_get_data (md->data, "load_images")) { + fetch_remote (md, url, html, handle); + } else if (http_mode == MAIL_CONFIG_HTTP_SOMETIMES && + !g_datalist_get_data (md->data, "checking_from")) { + const CamelInternetAddress *from; + const char *name, *addr; + + from = camel_mime_message_get_from (md->current_message); + g_datalist_set_data (md->data, "checking_from", GINT_TO_POINTER (1)); + + /* Make sure we aren't deal w/ some sort of a + pathological message w/o a From: header */ + if (from != NULL && camel_internet_address_get (from, 0, &name, &addr)) + e_book_query_address_default (addr, ebook_callback, md); + else + gtk_html_end (html, handle, GTK_HTML_STREAM_ERROR); + } + } +} + +/* for processing asynchronous url fetch cancels */ +static struct _mail_msg_op fetch_fake_op = { + NULL, NULL, NULL, NULL, +}; + +static gboolean +fetch_cancelled (GIOChannel *source, GIOCondition cond, void *user_data) +{ + fetch_cancel ((MailDisplay *) user_data); + + return FALSE; +} + +static void +fetch_next (MailDisplay *md) +{ + struct _remote_data *rd; + struct _MailDisplayPrivate *p = md->priv; + SoupMessage *msg; + SoupContext *ctx; + + /* if we're called and no more work to do, clean up, otherwise, setup */ + if (e_dlist_empty(&p->fetch_active) && e_dlist_empty(&p->fetch_queue)) { + if (p->fetch_msg) { + p->fetch_total = 0; + mail_disable_stop(); + camel_operation_end(p->fetch_msg->cancel); + camel_operation_unregister(p->fetch_msg->cancel); + mail_msg_free(p->fetch_msg); + p->fetch_msg = NULL; + g_source_remove(p->fetch_cancel_watch); + g_io_channel_unref(p->fetch_cancel_channel); + } + } else { + if (p->fetch_msg == NULL) { + p->fetch_total_done = 0; + p->fetch_msg = mail_msg_new(&fetch_fake_op, NULL, sizeof(*p->fetch_msg)); + camel_operation_register(p->fetch_msg->cancel); + camel_operation_start(p->fetch_msg->cancel, _("Downloading images")); + p->fetch_cancel_channel = g_io_channel_unix_new(camel_operation_cancel_fd(p->fetch_msg->cancel)); + p->fetch_cancel_watch = g_io_add_watch(p->fetch_cancel_channel, G_IO_IN, fetch_cancelled, md); + mail_enable_stop(); + } + } + + while (e_dlist_length(&p->fetch_active) < FETCH_MAX_CONNECTIONS + && (rd = (struct _remote_data *)e_dlist_remhead(&p->fetch_queue))) { + + ctx = soup_context_get(rd->uri); + rd->msg = msg = soup_message_new(ctx, SOUP_METHOD_GET); + + if (ctx) + soup_context_unref(ctx); + + soup_message_set_flags(msg, SOUP_MESSAGE_OVERWRITE_CHUNKS); + soup_message_add_handler(msg, SOUP_HANDLER_BODY_CHUNK, fetch_data, rd); + e_dlist_addtail(&p->fetch_active, (EDListNode *)rd); + soup_message_queue(msg, fetch_done, rd); + } +} + +static void fetch_remote(MailDisplay *md, const char *uri, GtkHTML *html, GtkHTMLStream *stream) +{ + struct _remote_data *rd; + CamelStream *cstream = NULL; + + if (fetch_cache) { + cstream = camel_data_cache_get(fetch_cache, FETCH_HTTP_CACHE, uri, NULL); + if (cstream) { + char buf[1024]; + ssize_t len; + + /* need to verify header? */ + + while (!camel_stream_eos(cstream)) { + len = camel_stream_read(cstream, buf, 1024); + if (len > 0) { + gtk_html_write(html, stream, buf, len); + } else if (len < 0) { + gtk_html_end(html, stream, GTK_HTML_STREAM_ERROR); + camel_object_unref(cstream); + return; + } + } + gtk_html_end(html, stream, GTK_HTML_STREAM_OK); + camel_object_unref(cstream); + return; + } + cstream = camel_data_cache_add(fetch_cache, FETCH_HTTP_CACHE, uri, NULL); + } + + rd = g_malloc0(sizeof(*rd)); + rd->md = md; /* dont ref */ + rd->uri = g_strdup(uri); + rd->html = html; + g_object_ref(html); + rd->stream = stream; + rd->cstream = cstream; + + md->priv->fetch_total++; + e_dlist_addtail(&md->priv->fetch_queue, (EDListNode *)rd); + + fetch_next(md); +} + +static void fetch_data(SoupMessage *req, void *data) +{ + struct _remote_data *rd = data, *wd; + struct _MailDisplayPrivate *p = rd->md->priv; + int count; + double complete; + + /* we could just hook into the header function for this, but i'm lazy today */ + if (rd->total == 0) { + const char *cl = soup_message_get_header(req->response_headers, "content-length"); + if (cl) + rd->total = strtoul(cl, 0, 10); + else + rd->total = 0; + } + rd->length += req->response.length; + + gtk_html_write(rd->html, rd->stream, req->response.body, req->response.length); + + /* copy to cache, clear cache if we get a cache failure */ + if (rd->cstream) { + if (camel_stream_write(rd->cstream, req->response.body, req->response.length) == -1) { + camel_data_cache_remove(fetch_cache, FETCH_HTTP_CACHE, rd->uri, NULL); + camel_object_unref(rd->cstream); + rd->cstream = NULL; + } + } + + /* update based on total active + finished totals */ + complete = 0.0; + wd = (struct _remote_data *)p->fetch_active.head; + count = e_dlist_length(&p->fetch_active); + while (wd->next) { + if (wd->total) + complete += (double)wd->length / wd->total / count; + wd = wd->next; + } + + d(printf("%s: %f total %f (%d,%d)\n", rd->uri, complete, (p->fetch_total_done + complete ) * 100.0 / p->fetch_total, p->fetch_total, p->fetch_total_done)); + + camel_operation_progress(p->fetch_msg->cancel, (p->fetch_total_done + complete ) * 100.0 / p->fetch_total); +} + +static void fetch_free(struct _remote_data *rd) +{ + g_object_unref(rd->html); + if (rd->cstream) + camel_object_unref(rd->cstream); + g_free(rd->uri); + g_free(rd); +} + +static void fetch_done(SoupMessage *req, void *data) +{ + struct _remote_data *rd = data; + MailDisplay *md = rd->md; + + if (SOUP_MESSAGE_IS_ERROR(req)) { + d(printf("Loading '%s' failed!\n", rd->uri)); + gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_ERROR); + if (fetch_cache) + camel_data_cache_remove(fetch_cache, FETCH_HTTP_CACHE, rd->uri, NULL); + } else { + d(printf("Loading '%s' complete!\n", rd->uri)); + gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_OK); + } + + e_dlist_remove((EDListNode *)rd); + fetch_free(rd); + md->priv->fetch_total_done++; + + fetch_next(md); +} + +static void fetch_cancel(MailDisplay *md) +{ + struct _remote_data *rd; + + /* first, clean up all the ones we haven't finished yet */ + while ((rd = (struct _remote_data *)e_dlist_remhead(&md->priv->fetch_queue))) { + gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_ERROR); + if (fetch_cache) + camel_data_cache_remove(fetch_cache, FETCH_HTTP_CACHE, rd->uri, NULL); + fetch_free(rd); + } + + /* cancel the rest, cancellation will free it/etc */ + while (!e_dlist_empty(&md->priv->fetch_active)) { + rd = (struct _remote_data *)md->priv->fetch_active.head; + soup_message_cancel(rd->msg); + } +} + +struct _load_content_msg { + struct _mail_msg msg; + + MailDisplay *display; + GtkHTML *html; + + GtkHTMLStream *handle; + int redisplay_counter; + char *url; + CamelMimeMessage *message; + void (*callback)(MailDisplay *, gpointer); + gpointer data; +}; + +static char * +load_content_desc (struct _mail_msg *mm, int done) +{ + return g_strdup (_("Loading message content")); +} + +static void +load_content_load (struct _mail_msg *mm) +{ + struct _load_content_msg *m = (struct _load_content_msg *)mm; + + m->callback (m->display, m->data); +} + +static gboolean +try_part_urls (struct _load_content_msg *m) +{ + GHashTable *urls; + CamelMedium *medium; + + urls = g_datalist_get_data (m->display->data, "part_urls"); + g_return_val_if_fail (urls != NULL, FALSE); + + /* See if it refers to a MIME part (cid: or http:) */ + medium = g_hash_table_lookup (urls, m->url); + if (medium) { + CamelDataWrapper *data; + CamelStream *html_stream; + + g_return_val_if_fail (CAMEL_IS_MEDIUM (medium), FALSE); + + data = camel_medium_get_content_object (medium); + if (!mail_content_loaded (data, m->display, FALSE, m->url, m->html, m->handle)) { + g_warning ("This code should not be reached\n"); + return TRUE; + } + + html_stream = mail_display_stream_new (m->html, m->handle); + camel_data_wrapper_decode_to_stream (data, html_stream); + camel_object_unref (html_stream); + + gtk_html_end (m->html, m->handle, GTK_HTML_STREAM_OK); + return TRUE; + } + + return FALSE; +} + +static gboolean +try_data_urls (struct _load_content_msg *m) +{ + GHashTable *urls; + GByteArray *ba; + + urls = g_datalist_get_data (m->display->data, "data_urls"); + ba = g_hash_table_lookup (urls, m->url); + + if (ba) { + if (ba->len) + gtk_html_write (m->html, m->handle, ba->data, ba->len); + gtk_html_end (m->html, m->handle, GTK_HTML_STREAM_OK); + return TRUE; + } + + return FALSE; +} + +static void +load_content_loaded (struct _mail_msg *mm) +{ + struct _load_content_msg *m = (struct _load_content_msg *)mm; + + if (m->display->destroyed) + return; + + if (m->display->current_message == m->message) { + if (m->handle) { + if (m->redisplay_counter == m->display->redisplay_counter) { + if (!try_part_urls (m) && !try_data_urls (m)) + gtk_html_end (m->html, m->handle, GTK_HTML_STREAM_ERROR); + } + } else { + mail_display_redisplay (m->display, FALSE); + } + } +} + +static void +load_content_free (struct _mail_msg *mm) +{ + struct _load_content_msg *m = (struct _load_content_msg *)mm; + + g_free (m->url); + g_object_unref (m->html); + g_object_unref (m->display); + camel_object_unref (m->message); +} + +static struct _mail_msg_op load_content_op = { + load_content_desc, + load_content_load, + load_content_loaded, + load_content_free, +}; + +static void +stream_write_or_redisplay_when_loaded (MailDisplay *md, + GtkHTML *html, + gconstpointer key, + const gchar *url, + void (*callback)(MailDisplay *, gpointer), + GtkHTMLStream *handle, + gpointer data) +{ + struct _load_content_msg *m; + GHashTable *loading; + + if (md->destroyed) + return; + + loading = g_datalist_get_data (md->data, "loading"); + if (loading) { + if (g_hash_table_lookup (loading, key)) + return; + } else { + loading = g_hash_table_new (NULL, NULL); + g_datalist_set_data_full (md->data, "loading", loading, + (GDestroyNotify) g_hash_table_destroy); + } + g_hash_table_insert (loading, (gpointer) key, GINT_TO_POINTER (1)); + + m = mail_msg_new (&load_content_op, NULL, sizeof (*m)); + m->display = md; + g_object_ref((m->display)); + m->html = html; + g_object_ref((html)); + m->handle = handle; + m->url = g_strdup (url); + m->redisplay_counter = md->redisplay_counter; + m->message = md->current_message; + camel_object_ref (m->message); + m->callback = callback; + m->data = data; + + e_thread_put (mail_thread_queued, (EMsg *)m); + return; +} + +void +mail_display_stream_write_when_loaded (MailDisplay *md, + gconstpointer key, + const char *url, + void (*callback)(MailDisplay *, gpointer), + GtkHTML *html, + GtkHTMLStream *handle, + gpointer data) +{ + stream_write_or_redisplay_when_loaded (md, html, key, url, callback, handle, data); +} + +void +mail_display_redisplay_when_loaded (MailDisplay *md, + gconstpointer key, + void (*callback)(MailDisplay *, gpointer), + GtkHTML *html, + gpointer data) +{ + stream_write_or_redisplay_when_loaded (md, html, key, NULL, callback, NULL, data); +} + +void +mail_text_write (MailDisplayStream *stream, MailDisplay *md, CamelMimePart *part, + int idx, gboolean printing, const char *text) +{ + CamelStreamFilter *filtered_stream; + CamelMimeFilter *html_filter; + GConfClient *gconf; + guint32 flags, rgb; + GdkColor colour; + char *buf; + + gconf = mail_config_get_gconf_client (); + + flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_NL | CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES; + + if (!printing) + flags |= CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS | CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES; + + if (!printing && gconf_client_get_bool (gconf, "/apps/evolution/mail/display/mark_citations", NULL)) + flags |= CAMEL_MIME_FILTER_TOHTML_MARK_CITATION; + + buf = gconf_client_get_string (gconf, "/apps/evolution/mail/display/citation_colour", NULL); + gdk_color_parse (buf ? buf : "#737373", &colour); + g_free (buf); + + rgb = ((colour.red & 0xff00) << 8) | (colour.green & 0xff00) | ((colour.blue & 0xff00) >> 8); + html_filter = camel_mime_filter_tohtml_new (flags, rgb); + filtered_stream = camel_stream_filter_new_with_stream ((CamelStream *) stream); + camel_stream_filter_add (filtered_stream, html_filter); + camel_object_unref (html_filter); + + camel_stream_write ((CamelStream *) stream, "<tt>\n", 5); + camel_stream_write ((CamelStream *) filtered_stream, text, strlen (text)); + camel_stream_flush ((CamelStream *) filtered_stream); + camel_stream_write ((CamelStream *) stream, "</tt>\n", 6); + camel_object_unref (filtered_stream); + +#if 0 + /* this was the old way of doing it, I don't understand why we need iframes... */ + GByteArray *ba; + char *xed, *iframe; + char *btt = "<tt>\n"; + char *ett = "</tt>\n"; + char *htmltext; + guint32 flags; + + flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_NL | CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES; + + if (!printing) + flags |= CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS | CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES; + + if (!printing && mail_config_get_citation_highlight ()) + flags |= CAMEL_MIME_FILTER_TOHTML_MARK_CITATION; + + htmltext = camel_text_to_html (text, flags, mail_config_get_citation_color ()); + + ba = g_byte_array_new (); + g_byte_array_append (ba, (const guint8 *) btt, strlen (btt) + 1); + g_byte_array_append (ba, (const guint8 *) htmltext, strlen (htmltext) + 1); + g_byte_array_append (ba, (const guint8 *) ett, strlen (ett) + 1); + g_free (htmltext); + + xed = g_strdup_printf ("x-evolution-data:%p-%d", part, idx); + iframe = g_strdup_printf ("<iframe src=\"%s\" frameborder=0 scrolling=no>could not get %s</iframe>", xed, xed); + mail_display_add_url (md, "data_urls", xed, ba); + camel_stream_write ((CamelStream *) stream, iframe, strlen (iframe)); + g_free (iframe); +#endif +} + +void +mail_error_printf (MailDisplayStream *stream, const char *format, ...) +{ + /* FIXME: it'd be nice if camel-stream had a vprintf method... */ + char *buf, *htmltext; + va_list ap; + + va_start (ap, format); + buf = g_strdup_vprintf (format, ap); + va_end (ap); + + htmltext = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL | + CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0); + g_free (buf); + + camel_stream_printf ((CamelStream *) stream, "<em><font color=red>"); + camel_stream_write ((CamelStream *) stream, htmltext, strlen (htmltext)); + camel_stream_printf ((CamelStream *) stream, "</font></em>"); + + g_free (htmltext); +} + + +#define COLOR_IS_LIGHT(r, g, b) ((r + g + b) > (128 * 3)) + +#define HTML_HEADER "<!doctype html public \"-//W3C//DTD HTML 4.0 TRANSITIONAL//EN\">\n<html>\n" \ + "<head>\n<meta name=\"generator\" content=\"Evolution Mail Component\">\n</head>\n" + +void +mail_display_render (MailDisplay *md, GtkHTML *html, gboolean reset_scroll) +{ + const char *flag, *completed; + GtkHTMLStream *html_stream; + MailDisplayStream *stream; + + g_return_if_fail (IS_MAIL_DISPLAY (md)); + g_return_if_fail (GTK_IS_HTML (html)); + + if (!md->html) { + /* we've been destroyed */ + return; + } + + html_stream = gtk_html_begin (html); + if (!reset_scroll) { + /* This is a hack until there's a clean way to do this. */ + GTK_HTML (md->html)->engine->newPage = FALSE; + } + + gtk_html_stream_write (html_stream, HTML_HEADER, sizeof (HTML_HEADER) - 1); + + if (md->current_message && md->display_style == MAIL_CONFIG_DISPLAY_SOURCE) + gtk_html_stream_write (html_stream, "<body>\n", 7); + else + gtk_html_stream_write (html_stream, "<body marginwidth=0 marginheight=0>\n", 36); + + flag = md->info ? camel_tag_get (&md->info->user_tags, "follow-up") : NULL; + completed = md->info ? camel_tag_get (&md->info->user_tags, "completed-on") : NULL; + if ((flag && *flag) && !(completed && *completed)) { + const char *due_by, *overdue = ""; + char bgcolor[7], fontcolor[7]; + time_t target_date, now; + GtkStyle *style = NULL; + char due_date[256]; + struct tm due; + int offset; + + /* my favorite thing to do... muck around with colors so we respect people's stupid themes. */ + /* FIXME: this is also in mail-format.c */ + style = gtk_widget_get_style (GTK_WIDGET (html)); + if (style && !md->printing) { + int state = GTK_WIDGET_STATE (GTK_WIDGET (html)); + gushort r, g, b; + + r = style->base[state].red / 256; + g = style->base[state].green / 256; + b = style->base[state].blue / 256; + + if (COLOR_IS_LIGHT (r, g, b)) { + r *= 1.0; + g *= 0.97; + b *= 0.75; + } else { + r = 255 - (1.0 * (255 - r)); + g = 255 - (0.97 * (255 - g)); + b = 255 - (0.75 * (255 - b)); + } + + sprintf (bgcolor, "%.2X%.2X%.2X", r, g, b); + + r = style->text[state].red / 256; + g = style->text[state].green / 256; + b = style->text[state].blue / 256; + + sprintf (fontcolor, "%.2X%.2X%.2X", r, g, b); + } else { + strcpy (bgcolor, "EEEEEE"); + strcpy (fontcolor, "000000"); + } + + due_by = camel_tag_get (&md->info->user_tags, "due-by"); + if (due_by && *due_by) { + target_date = header_decode_date (due_by, &offset); + now = time (NULL); + if (now >= target_date) + overdue = _("Overdue:"); + + localtime_r (&target_date, &due); + + e_utf8_strftime_fix_am_pm (due_date, sizeof (due_date), _("by %B %d, %Y, %l:%M %p"), &due); + } else { + due_date[0] = '\0'; + } + + gtk_html_stream_printf (html_stream, "<font color=\"#%s\">" + "<table width=\"100%%\" cellpadding=0 cellspacing=0><tr><td colspan=3 height=10></td></tr>" + "<tr><td width=10></td><td>" + "<table cellspacing=1 cellpadding=1 bgcolor=\"#000000\" width=\"100%%\"><tr><td>" + "<table cellspacing=0 bgcolor=\"#%s\" cellpadding=2 cellspacing=2 width=\"100%%\">" + "<tr><td align=\"left\" width=20><img src=\"%s\" align=\"middle\"></td>" + "<td>%s%s%s%s %s</td></table></td></tr></table>" + "</td><td width=10></td></tr></table></font>", fontcolor, bgcolor, + mail_display_get_url_for_icon (md, EVOLUTION_IMAGES "/flag-for-followup-16.png"), + overdue ? "<b>" : "", overdue, overdue ? "</b> " : "", + flag, due_date); + } + + if (md->current_message) { + stream = (MailDisplayStream *) mail_display_stream_new (html, html_stream); + + if (md->display_style == MAIL_CONFIG_DISPLAY_SOURCE) + mail_format_raw_message (md->current_message, md, stream); + else + mail_format_mime_message (md->current_message, md, stream); + + camel_object_unref (stream); + } + + gtk_html_stream_write (html_stream, "</body></html>\n", 15); + gtk_html_end (html, html_stream, GTK_HTML_STREAM_OK); +} + +/** + * mail_display_redisplay: + * @mail_display: the mail display object + * @reset_scroll: specifies whether or not to reset current scroll + * + * Force a redraw of the message display. + **/ +void +mail_display_redisplay (MailDisplay *md, gboolean reset_scroll) +{ + if (md->destroyed) + return; + + /* we're in effect stealing the queued redisplay */ + if (md->idle_id) { + g_source_remove(md->idle_id); + md->idle_id = 0; + } + + fetch_cancel(md); + + md->last_active = NULL; + md->redisplay_counter++; + /* printf ("md %p redisplay %d\n", md, md->redisplay_counter); */ + + mail_display_render (md, md->html, reset_scroll); +} + + +/** + * mail_display_set_message: + * @mail_display: the mail display object + * @medium: the input camel medium, or %NULL + * @folder: CamelFolder + * @info: message info + * + * Makes the mail_display object show the contents of the medium + * param. + **/ +void +mail_display_set_message (MailDisplay *md, CamelMedium *medium, CamelFolder *folder, CamelMessageInfo *info) +{ + /* For the moment, we deal only with CamelMimeMessage, but in + * the future, we should be able to deal with any medium. + */ + if (md->destroyed + || (medium && !CAMEL_IS_MIME_MESSAGE (medium))) + return; + + /* Clean up from previous message. */ + if (md->current_message) { + fetch_cancel (md); + camel_object_unref (md->current_message); + g_datalist_clear (md->data); + } + + if (medium) { + camel_object_ref (medium); + md->current_message = (CamelMimeMessage *) medium; + } else + md->current_message = NULL; + + if (md->folder && md->info) { + camel_folder_free_message_info (md->folder, md->info); + camel_object_unref (md->folder); + } + + if (folder && info) { + md->info = info; + md->folder = folder; + camel_object_ref (folder); + camel_folder_ref_message_info (folder, info); + } else { + md->info = NULL; + md->folder = NULL; + } + + g_datalist_init (md->data); + mail_display_redisplay (md, TRUE); +} + +/** + * mail_display_set_charset: + * @mail_display: the mail display object + * @charset: charset or %NULL + * + * Makes the mail_display object show the contents of the medium + * param. + **/ +void +mail_display_set_charset (MailDisplay *mail_display, const char *charset) +{ + g_free (mail_display->charset); + mail_display->charset = g_strdup (charset); + + mail_display_queue_redisplay (mail_display); +} + +/** + * mail_display_load_images: + * @md: the mail display object + * + * Load all HTTP images in the current message + **/ +void +mail_display_load_images (MailDisplay *md) +{ + g_datalist_set_data (md->data, "load_images", GINT_TO_POINTER (1)); + mail_display_redisplay (md, FALSE); +} + +/*----------------------------------------------------------------------* + * Standard Gtk+ Class functions + *----------------------------------------------------------------------*/ + +static void +mail_display_init (GObject *object) +{ + MailDisplay *mail_display = MAIL_DISPLAY (object); + GConfClient *gconf; + int style; + + mail_display->scroll = NULL; + mail_display->html = NULL; + mail_display->redisplay_counter = 0; + mail_display->last_active = NULL; + mail_display->idle_id = 0; + mail_display->selection = NULL; + mail_display->charset = NULL; + mail_display->current_message = NULL; + mail_display->folder = NULL; + mail_display->info = NULL; + mail_display->data = NULL; + + mail_display->invisible = gtk_invisible_new (); + g_object_ref (mail_display->invisible); + gtk_object_sink ((GtkObject *) mail_display->invisible); + + gconf = mail_config_get_gconf_client (); + style = gconf_client_get_int (gconf, "/apps/evolution/mail/format/message_display_style", NULL); + mail_display->display_style = style; + + mail_display->printing = FALSE; + + mail_display->priv = g_malloc0(sizeof(*mail_display->priv)); + e_dlist_init(&mail_display->priv->fetch_active); + e_dlist_init(&mail_display->priv->fetch_queue); +} + +static void +mail_display_destroy (GtkObject *object) +{ + MailDisplay *mail_display = MAIL_DISPLAY (object); + + if (mail_display->html) { + g_object_unref (mail_display->html); + mail_display->html = NULL; + } + + if (mail_display->current_message) { + camel_object_unref (mail_display->current_message); + g_datalist_clear (mail_display->data); + fetch_cancel(mail_display); + mail_display->current_message = NULL; + } + + g_free (mail_display->charset); + mail_display->charset = NULL; + g_free (mail_display->selection); + mail_display->selection = NULL; + + if (mail_display->folder) { + if (mail_display->info) + camel_folder_free_message_info (mail_display->folder, mail_display->info); + camel_object_unref (mail_display->folder); + mail_display->folder = NULL; + } + + g_free (mail_display->data); + mail_display->data = NULL; + + if (mail_display->idle_id) { + g_source_remove (mail_display->idle_id); + mail_display->idle_id = 0; + } + + if (mail_display->invisible) { + g_object_unref (mail_display->invisible); + mail_display->invisible = NULL; + } + + if (mail_display->priv && mail_display->priv->display_notify_id) { + GConfClient *gconf = mail_config_get_gconf_client (); + gconf_client_notify_remove (gconf, mail_display->priv->display_notify_id); + mail_display->priv->display_notify_id = 0; + } + + g_free (mail_display->priv); + mail_display->priv = NULL; + + mail_display->destroyed = TRUE; + + mail_display_parent_class->destroy (object); +} + +static void +invisible_selection_get_callback (GtkWidget *widget, + GtkSelectionData *selection_data, + guint info, + guint time, + void *data) +{ + MailDisplay *display; + + display = MAIL_DISPLAY (data); + + if (!display->selection) + return; + + g_assert (info == 1); + + gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING, 8, + display->selection, strlen (display->selection)); +} + +static gint +invisible_selection_clear_event_callback (GtkWidget *widget, + GdkEventSelection *event, + void *data) +{ + MailDisplay *display; + + display = MAIL_DISPLAY (data); + + g_free (display->selection); + display->selection = NULL; + + return TRUE; +} + +static void +mail_display_class_init (GtkObjectClass *object_class) +{ + object_class->destroy = mail_display_destroy; + + if (mail_display_parent_class == NULL) { + const char *base_directory = mail_component_peek_base_directory (mail_component_peek ()); + char *path; + + path = g_alloca (strlen (base_directory) + 16); + sprintf (path, "%s/cache", base_directory); + + /* cache expiry - 2 hour access, 1 day max */ + fetch_cache = camel_data_cache_new(path, 0, NULL); + camel_data_cache_set_expire_age(fetch_cache, 24*60*60); + camel_data_cache_set_expire_access(fetch_cache, 2*60*60); + + mail_display_parent_class = g_type_class_ref (PARENT_TYPE); + thumbnail_cache = g_hash_table_new (g_str_hash, g_str_equal); + } +} + +static void +link_open_in_browser (GtkWidget *w, MailDisplay *mail_display) +{ + if (!mail_display->html->pointer_url) + return; + + on_link_clicked (mail_display->html, mail_display->html->pointer_url, + mail_display); +} + +#if 0 +static void +link_save_as (GtkWidget *w, MailDisplay *mail_display) +{ + g_print ("FIXME save %s\n", mail_display->html->pointer_url); +} +#endif + +static void +link_copy_location (GtkWidget *w, MailDisplay *mail_display) +{ + GdkAtom clipboard_atom; + + g_free (mail_display->selection); + mail_display->selection = g_strdup (mail_display->html->pointer_url); + + clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE); + if (clipboard_atom == GDK_NONE) + return; /* failed */ + + /* We don't check the return values of the following since there is not + * much we can do if we cannot assert the selection. + */ + + gtk_selection_owner_set (GTK_WIDGET (mail_display->invisible), + GDK_SELECTION_PRIMARY, + GDK_CURRENT_TIME); + gtk_selection_owner_set (GTK_WIDGET (mail_display->invisible), + clipboard_atom, + GDK_CURRENT_TIME); +} + +static void +image_save_as (GtkWidget *w, MailDisplay *mail_display) +{ + const char *src; + + src = g_object_get_data ((GObject *) mail_display, "current_src_uri"); + + save_url (mail_display, src); +} + +enum { + /* + * This is used to mask the link specific menu items. + */ + MASK_URL = 1, + + /* + * This is used to mask src specific menu items. + */ + MASK_SRC = 2 +}; + +#define SEPARATOR { "", NULL, (NULL), NULL, 0 } +#define TERMINATOR { NULL, NULL, (NULL), NULL, 0 } + +static EPopupMenu link_menu [] = { + E_POPUP_ITEM (N_("Open Link in Browser"), G_CALLBACK (link_open_in_browser), MASK_URL), + E_POPUP_ITEM (N_("Copy Link Location"), G_CALLBACK (link_copy_location), MASK_URL), +#if 0 + E_POPUP_ITEM (N_("Save Link as (FIXME)"), G_CALLBACK (link_save_as), MASK_URL), +#endif + E_POPUP_ITEM (N_("Save Image as..."), G_CALLBACK (image_save_as), MASK_SRC), + + TERMINATOR +}; + + +/* + * Create a window and popup our widget, with reasonable semantics for the popup + * disappearing, etc. + */ + +typedef struct _PopupInfo PopupInfo; +struct _PopupInfo { + GtkWidget *w; + GtkWidget *win; + guint destroy_timeout; + guint widget_destroy_handle; + Bonobo_Listener listener; + gboolean hidden; +}; + +/* Aiieee! Global Data! */ +static GtkWidget *the_popup = NULL; + +static void +popup_window_destroy_cb (PopupInfo *pop, GObject *deadbeef) +{ + the_popup = NULL; + + if (pop->destroy_timeout != 0) + g_source_remove(pop->destroy_timeout); + + bonobo_event_source_client_remove_listener (bonobo_widget_get_objref (BONOBO_WIDGET (pop->w)), + pop->listener, + NULL); + CORBA_Object_release (pop->listener, NULL); + g_object_unref(pop->w); + g_free (pop); +} + +static int +popup_timeout_cb (gpointer user_data) +{ + PopupInfo *pop = (PopupInfo *) user_data; + + pop->destroy_timeout = 0; + gtk_widget_destroy (pop->win); + + return 0; +} + +static int +popup_enter_cb (GtkWidget *w, GdkEventCrossing *ev, gpointer user_data) +{ + PopupInfo *pop = (PopupInfo *) user_data; + + if (pop->destroy_timeout) + g_source_remove (pop->destroy_timeout); + pop->destroy_timeout = 0; + + return 0; +} + +static int +popup_leave_cb (GtkWidget *w, GdkEventCrossing *ev, gpointer user_data) +{ + PopupInfo *pop = (PopupInfo *) user_data; + + if (pop->destroy_timeout) + g_source_remove (pop->destroy_timeout); + + if (!pop->hidden) + pop->destroy_timeout = g_timeout_add (500, popup_timeout_cb, pop); + + return 0; +} + +static void +popup_realize_cb (GtkWidget *widget, gpointer user_data) +{ + PopupInfo *pop = (PopupInfo *) user_data; + + gtk_widget_add_events (pop->win, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); + + if (pop->destroy_timeout == 0) { + if (!pop->hidden) { + pop->destroy_timeout = g_timeout_add (5000, popup_timeout_cb, pop); + } else { + pop->destroy_timeout = 0; + } + } +} + +static void +popup_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer user_data) +{ + gtk_window_set_position (GTK_WINDOW (widget), GTK_WIN_POS_MOUSE); +} + +static PopupInfo * +make_popup_window (GtkWidget *w) +{ + PopupInfo *pop = g_new0 (PopupInfo, 1); + GtkWidget *fr; + + /* Only allow for one popup at a time. Ugly. */ + if (the_popup) + gtk_widget_destroy (the_popup); + + pop->w = w; + g_object_ref(w); + the_popup = pop->win = gtk_window_new (GTK_WINDOW_POPUP); + fr = gtk_frame_new (NULL); + + gtk_container_add (GTK_CONTAINER (pop->win), fr); + gtk_container_add (GTK_CONTAINER (fr), w); + + gtk_window_set_resizable (GTK_WINDOW (pop->win), FALSE); + + g_signal_connect (pop->win, "enter_notify_event", G_CALLBACK (popup_enter_cb), pop); + g_signal_connect (pop->win, "leave_notify_event", G_CALLBACK (popup_leave_cb), pop); + g_signal_connect_after (pop->win, "realize", G_CALLBACK (popup_realize_cb), pop); + g_signal_connect (pop->win, "size_allocate", G_CALLBACK (popup_size_allocate_cb), pop); + + g_object_weak_ref ((GObject *) pop->win, (GWeakNotify) popup_window_destroy_cb, pop); + + gtk_widget_show (w); + gtk_widget_show (fr); + gtk_widget_show (pop->win); + + return pop; +} + +static void +listener_cb (BonoboListener *listener, + char *event_name, + CORBA_any *any, + CORBA_Environment *ev, + gpointer user_data) +{ + PopupInfo *pop; + char *type; + + pop = user_data; + + if (pop->destroy_timeout) + g_source_remove (pop->destroy_timeout); + pop->destroy_timeout = 0; + + type = bonobo_event_subtype (event_name); + + if (!strcmp (type, "Destroy")) { + gtk_widget_destroy (GTK_WIDGET (pop->win)); + } else if (!strcmp (type, "Hide")) { + pop->hidden = TRUE; + gtk_widget_hide (GTK_WIDGET (pop->win)); + } + + g_free (type); +} + +static int +html_button_press_event (GtkWidget *widget, GdkEventButton *event, MailDisplay *mail_display) +{ + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (event->type == GDK_BUTTON_PRESS) { + if (event->button == 3) { + HTMLEngine *e; + HTMLPoint *point; + GtkWidget *popup_thing; + + e = GTK_HTML (widget)->engine; + point = html_engine_get_point_at (e, event->x, event->y, FALSE); + + if (point) { + const char *url, *src; + + url = html_object_get_url (point->object); + src = html_object_get_src (point->object); + + if (url && !strncasecmp (url, "mailto:", 7)) { + PopupInfo *pop; + char *url_decoded; + + url_decoded = gtk_html_get_url_object_relative (GTK_HTML (widget), + point->object, + url); + camel_url_decode (url_decoded); + + popup_thing = bonobo_widget_new_control ("OAFIID:GNOME_Evolution_Addressbook_AddressPopup", + CORBA_OBJECT_NIL); + + bonobo_widget_set_property (BONOBO_WIDGET (popup_thing), + "email", TC_CORBA_string, url_decoded+7, + NULL); + g_free (url_decoded); + + pop = make_popup_window (popup_thing); + + pop->listener = bonobo_event_source_client_add_listener_full( + bonobo_widget_get_objref (BONOBO_WIDGET (popup_thing)), + g_cclosure_new (G_CALLBACK (listener_cb), pop, NULL), + NULL, NULL); + } else if (url || src) { + int hide_mask = 0; + + if (!url) + hide_mask |= MASK_URL; + + if (!src) + hide_mask |= MASK_SRC; + + g_free (g_object_get_data ((GObject *) mail_display, "current_src_uri")); + g_object_set_data ((GObject *) mail_display, "current_src_uri", + gtk_html_get_url_object_relative (GTK_HTML (widget), + point->object, + src)); + + e_popup_menu_run (link_menu, (GdkEvent *) event, 0, hide_mask, mail_display); + } + + html_point_destroy (point); + return TRUE; + } + } + } + + return FALSE; +} + +static inline void +set_underline (HTMLEngine *e, HTMLObject *o, gboolean underline) +{ + HTMLText *text = HTML_TEXT (o); + + html_text_set_font_style (text, e, underline + ? html_text_get_font_style (text) | GTK_HTML_FONT_STYLE_UNDERLINE + : html_text_get_font_style (text) & ~GTK_HTML_FONT_STYLE_UNDERLINE); + html_engine_queue_draw (e, o); +} + +static void +update_active (GtkWidget *widget, gint x, gint y, MailDisplay *mail_display) +{ + HTMLEngine *e; + HTMLPoint *point; + const gchar *email; + + e = GTK_HTML (widget)->engine; + + point = html_engine_get_point_at (e, x, y, FALSE); + if (mail_display->last_active && (!point || mail_display->last_active != point->object)) { + set_underline (e, HTML_OBJECT (mail_display->last_active), FALSE); + mail_display->last_active = NULL; + } + if (point) { + email = (const gchar *) html_object_get_data (point->object, "email"); + if (email && html_object_is_text (point->object)) { + set_underline (e, point->object, TRUE); + mail_display->last_active = point->object; + } + html_point_destroy (point); + } +} + +static int +html_enter_notify_event (GtkWidget *widget, GdkEventCrossing *event, MailDisplay *mail_display) +{ + update_active (widget, event->x, event->y, mail_display); + + return FALSE; +} + +static int +html_motion_notify_event (GtkWidget *widget, GdkEventMotion *event, MailDisplay *mail_display) +{ + int x, y; + + g_return_val_if_fail (widget != NULL, 0); + g_return_val_if_fail (GTK_IS_HTML (widget), 0); + g_return_val_if_fail (event != NULL, 0); + + if (event->is_hint) + gdk_window_get_pointer (GTK_LAYOUT (widget)->bin_window, &x, &y, NULL); + else { + x = event->x; + y = event->y; + } + + update_active (widget, x, y, mail_display); + + return FALSE; +} + +static void +html_iframe_created (GtkWidget *w, GtkHTML *iframe, MailDisplay *mail_display) +{ + g_signal_connect (iframe, "button_press_event", + G_CALLBACK (html_button_press_event), mail_display); + g_signal_connect (iframe, "motion_notify_event", + G_CALLBACK (html_motion_notify_event), mail_display); + g_signal_connect (iframe, "enter_notify_event", + G_CALLBACK (html_enter_notify_event), mail_display); +} + +static GNOME_Evolution_ShellView +retrieve_shell_view_interface_from_control (BonoboControl *control) +{ + Bonobo_ControlFrame control_frame; + GNOME_Evolution_ShellView shell_view_interface; + CORBA_Environment ev; + + control_frame = bonobo_control_get_control_frame (control, NULL); + + if (control_frame == NULL) + return CORBA_OBJECT_NIL; + + CORBA_exception_init (&ev); + shell_view_interface = Bonobo_Unknown_queryInterface (control_frame, + "IDL:GNOME/Evolution/ShellView:1.0", + &ev); + + if (BONOBO_EX (&ev)) + shell_view_interface = CORBA_OBJECT_NIL; + + CORBA_exception_free (&ev); + + return shell_view_interface; +} + +static void +set_status_message (const char *message, int busy) +{ + EList *controls; + EIterator *it; + + controls = folder_browser_factory_get_control_list (); + for (it = e_list_get_iterator (controls); e_iterator_is_valid (it); e_iterator_next (it)) { + BonoboControl *control; + GNOME_Evolution_ShellView shell_view_interface; + CORBA_Environment ev; + + control = BONOBO_CONTROL (e_iterator_get (it)); + + shell_view_interface = retrieve_shell_view_interface_from_control (control); + + CORBA_exception_init (&ev); + + if (shell_view_interface != CORBA_OBJECT_NIL) { + if (message != NULL) + GNOME_Evolution_ShellView_setMessage (shell_view_interface, + message[0] ? message: "", + busy, + &ev); + } + + CORBA_exception_free (&ev); + + bonobo_object_release_unref (shell_view_interface, NULL); + + /* yeah we only set the first one. Why? Because it seems to leave + random ones lying around otherwise. Shrug. */ + break; + } + + g_object_unref (it); +} + +/* For now show every url but possibly limit it to showing only http: + or ftp: urls */ +static void +html_on_url (GtkHTML *html, const char *url, MailDisplay *mail_display) +{ + static char *previous_url = NULL; + + /* This all looks silly but yes, this is the proper way to mix + GtkHTML's on_url with BonoboUIComponent statusbar */ + if (!url || (previous_url && (strcmp (url, previous_url) != 0))) + set_status_message ("", FALSE); + if (url) { + set_status_message (url, FALSE); + g_free (previous_url); + previous_url = g_strdup (url); + } +} + +/* If if a gconf setting for the mail display has changed redisplay to pick up the changes */ +static void +display_notify (GConfClient *gconf, guint cnxn_id, GConfEntry *entry, gpointer data) +{ + MailDisplay *md = data; + gchar *tkey; + + g_return_if_fail (entry != NULL); + g_return_if_fail (gconf_entry_get_key (entry) != NULL); + g_return_if_fail (gconf_entry_get_value (entry) != NULL); + + tkey = strrchr (entry->key, '/'); + + g_return_if_fail (tkey != NULL); + + if (!strcmp (tkey, "/animate_images")) { + gtk_html_set_animate (md->html, gconf_value_get_bool (gconf_entry_get_value(entry))); + } else if (!strcmp (tkey, "/citation_color") + || !strcmp (tkey, "/mark_citations")) { + mail_display_queue_redisplay (md); + } else if (!strcmp (tkey, "/caret_mode")) { + gtk_html_set_caret_mode(md->html, gconf_value_get_bool (gconf_entry_get_value(entry))); + } +} + +GtkWidget * +mail_display_new (void) +{ + MailDisplay *mail_display = g_object_new (mail_display_get_type (), NULL); + GtkWidget *scroll, *html; + GdkAtom clipboard_atom; + HTMLTokenizer *tok; + GConfClient *gconf; + + gtk_box_set_homogeneous (GTK_BOX (mail_display), FALSE); + gtk_widget_show (GTK_WIDGET (mail_display)); + + scroll = gtk_scrolled_window_new (NULL, NULL); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); + gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scroll), GTK_SHADOW_IN); + gtk_box_pack_start_defaults (GTK_BOX (mail_display), scroll); + gtk_widget_show (scroll); + + html = gtk_html_new (); + tok = e_searching_tokenizer_new (); + html_engine_set_tokenizer (GTK_HTML (html)->engine, tok); + g_object_unref (tok); + + mail_display_initialize_gtkhtml (mail_display, GTK_HTML (html)); + + gtk_container_add (GTK_CONTAINER (scroll), html); + gtk_widget_show (GTK_WIDGET (html)); + + g_signal_connect (mail_display->invisible, "selection_get", + G_CALLBACK (invisible_selection_get_callback), mail_display); + g_signal_connect (mail_display->invisible, "selection_clear_event", + G_CALLBACK (invisible_selection_clear_event_callback), mail_display); + + gtk_selection_add_target (mail_display->invisible, + GDK_SELECTION_PRIMARY, GDK_SELECTION_TYPE_STRING, 1); + + clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE); + if (clipboard_atom != GDK_NONE) + gtk_selection_add_target (mail_display->invisible, + clipboard_atom, GDK_SELECTION_TYPE_STRING, 1); + + gconf = mail_config_get_gconf_client (); + gtk_html_set_animate (GTK_HTML (html), gconf_client_get_bool (gconf, "/apps/evolution/mail/display/animate_images", NULL)); + gtk_html_set_caret_mode (GTK_HTML (html), gconf_client_get_bool (gconf, "/apps/evolution/mail/display/caret_mode", NULL)); + + gconf_client_add_dir (gconf, "/apps/evolution/mail/display",GCONF_CLIENT_PRELOAD_NONE, NULL); + mail_display->priv->display_notify_id = gconf_client_notify_add (gconf, "/apps/evolution/mail/display", + display_notify, mail_display, NULL, NULL); + + mail_display->scroll = GTK_SCROLLED_WINDOW (scroll); + mail_display->html = GTK_HTML (html); + g_object_ref (mail_display->html); + mail_display->last_active = NULL; + mail_display->data = g_new0 (GData *, 1); + g_datalist_init (mail_display->data); + + return GTK_WIDGET (mail_display); +} + +void +mail_display_initialize_gtkhtml (MailDisplay *mail_display, GtkHTML *html) +{ + gtk_html_set_default_content_type (GTK_HTML (html), "text/html; charset=utf-8"); + + gtk_html_set_editable (GTK_HTML (html), FALSE); + + g_signal_connect (html, "url_requested", + G_CALLBACK (on_url_requested), + mail_display); + g_signal_connect (html, "object_requested", + G_CALLBACK (on_object_requested), + mail_display); + g_signal_connect (html, "link_clicked", + G_CALLBACK (on_link_clicked), + mail_display); + g_signal_connect (html, "button_press_event", + G_CALLBACK (html_button_press_event), mail_display); + g_signal_connect (html, "motion_notify_event", + G_CALLBACK (html_motion_notify_event), mail_display); + g_signal_connect (html, "enter_notify_event", + G_CALLBACK (html_enter_notify_event), mail_display); + g_signal_connect (html, "iframe_created", + G_CALLBACK (html_iframe_created), mail_display); + g_signal_connect (html, "on_url", + G_CALLBACK (html_on_url), mail_display); +} + +static void +free_url (gpointer key, gpointer value, gpointer data) +{ + g_free (key); + if (data) + g_byte_array_free (value, TRUE); +} + +static void +free_data_urls (gpointer urls) +{ + g_hash_table_foreach (urls, free_url, GINT_TO_POINTER (1)); + g_hash_table_destroy (urls); +} + +char * +mail_display_add_url (MailDisplay *md, const char *kind, char *url, gpointer data) +{ + GHashTable *urls; + gpointer old_key, old_value; + + urls = g_datalist_get_data (md->data, kind); + if (!urls) { + urls = g_hash_table_new (g_str_hash, g_str_equal); + g_datalist_set_data_full (md->data, "data_urls", urls, + free_data_urls); + } + + if (g_hash_table_lookup_extended (urls, url, &old_key, &old_value)) { + g_free (url); + url = old_key; + } + + g_hash_table_insert (urls, url, data); + + return url; +} + +const char * +mail_display_get_url_for_icon (MailDisplay *md, const char *icon_name) +{ + char *icon_path, buf[1024], *url; + int fd, nread; + GByteArray *ba; + + /* FIXME: cache */ + + if (*icon_name == '/') + icon_path = g_strdup (icon_name); + else { + icon_path = gnome_program_locate_file (NULL, GNOME_FILE_DOMAIN_PIXMAP, + icon_name, TRUE, NULL); + if (!icon_path) + return "file:///dev/null"; + } + + fd = open (icon_path, O_RDONLY); + g_free (icon_path); + if (fd == -1) + return "file:///dev/null"; + + ba = g_byte_array_new (); + while (1) { + nread = read (fd, buf, sizeof (buf)); + if (nread < 1) + break; + g_byte_array_append (ba, buf, nread); + } + close (fd); + + url = g_strdup_printf ("x-evolution-data:%p", ba); + + return mail_display_add_url (md, "data_urls", url, ba); +} + + +struct _location_url_stack { + struct _location_url_stack *parent; + CamelURL *url; +}; + +void +mail_display_push_content_location (MailDisplay *md, const char *location) +{ + struct _location_url_stack *node; + CamelURL *url; + + url = camel_url_new (location, NULL); + node = g_new (struct _location_url_stack, 1); + node->parent = md->urls; + node->url = url; + md->urls = node; +} + +CamelURL * +mail_display_get_content_location (MailDisplay *md) +{ + return md->urls ? md->urls->url : NULL; +} + +void +mail_display_pop_content_location (MailDisplay *md) +{ + struct _location_url_stack *node; + + if (!md->urls) { + g_warning ("content-location stack underflow!"); + return; + } + + node = md->urls; + md->urls = node->parent; + + if (node->url) + camel_url_free (node->url); + + g_free (node); +} + +E_MAKE_TYPE (mail_display, "MailDisplay", MailDisplay, mail_display_class_init, mail_display_init, PARENT_TYPE); |