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-rw-r--r--calendar/gui/dialogs/cal-attachment-bar.c918
1 files changed, 918 insertions, 0 deletions
diff --git a/calendar/gui/dialogs/cal-attachment-bar.c b/calendar/gui/dialogs/cal-attachment-bar.c
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index 0000000000..1d2c252476
--- /dev/null
+++ b/calendar/gui/dialogs/cal-attachment-bar.c
@@ -0,0 +1,918 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/*
+ * Authors: Harish Krishnaswamy <kharish@novell.com>
+ *
+ * Copyright 2004 Novell, Inc. (www.novell.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.
+ *
+ */
+
+
+/* Much of this file has been shamelessly copied from the mail attachment
+ * handling code, including the fixmes. Modifications/Additions that are
+ * specific to the calendar component have been flagged by some comments
+ * fwiw */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+#include <gtk/gtk.h>
+#include <glade/glade.h>
+#include <gconf/gconf.h>
+#include <gconf/gconf-client.h>
+#include <gdk/gdkkeysyms.h>
+#include <libgnomevfs/gnome-vfs-mime-handlers.h>
+#include <libgnome/gnome-i18n.h>
+#include "comp-editor.h"
+#include "cal-attachment-select-file.h"
+#include "cal-attachment.h"
+#include "cal-attachment-bar.h"
+
+#include <libedataserver/e-iconv.h>
+
+#include <camel/camel-data-wrapper.h>
+#include <camel/camel-stream-fs.h>
+#include <camel/camel-stream-null.h>
+#include <camel/camel-stream-mem.h>
+#include <camel/camel-stream-filter.h>
+#include <camel/camel-mime-filter-bestenc.h>
+#include <camel/camel-mime-part.h>
+#include <camel/camel-file-utils.h>
+
+#include "e-util/e-gui-utils.h"
+#include "e-util/e-icon-factory.h"
+#include "widgets/misc/e-error.h"
+#include "mail/em-popup.h"
+
+#define ICON_WIDTH 64
+#define ICON_SEPARATORS " /-_"
+#define ICON_SPACING 2
+#define ICON_ROW_SPACING ICON_SPACING
+#define ICON_COL_SPACING ICON_SPACING
+#define ICON_BORDER 2
+#define ICON_TEXT_SPACING 2
+
+static GnomeIconListClass *parent_class = NULL;
+
+struct _CalAttachmentBarPrivate {
+ GSList *attachments;
+ guint num_attachments;
+ /* The persistent copies of the attachments
+ * derive their location and name from the
+ * source_url and the comp_uid.
+ */
+ char *source_url;
+ char *comp_uid;
+};
+
+enum {
+ CHANGED,
+ LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void update (CalAttachmentBar *bar);
+
+static char *
+size_to_string (gulong size)
+{
+ char *size_string;
+
+ /* FIXME: The following should probably go into a separate module, as
+ we might have to do the same thing in other places as well. Also,
+ I am not sure this will be OK for all the languages. */
+
+ if (size < 1e3L) {
+ size_string = NULL;
+ } else {
+ gdouble displayed_size;
+
+ if (size < 1e6L) {
+ displayed_size = (gdouble) size / 1.0e3;
+ size_string = g_strdup_printf (_("%.0fK"), displayed_size);
+ } else if (size < 1e9L) {
+ displayed_size = (gdouble) size / 1.0e6;
+ size_string = g_strdup_printf (_("%.0fM"), displayed_size);
+ } else {
+ displayed_size = (gdouble) size / 1.0e9;
+ size_string = g_strdup_printf (_("%.0fG"), displayed_size);
+ }
+ }
+
+ return size_string;
+}
+
+/* Attachment handling functions. */
+
+static void
+free_attachment_list (CalAttachmentBar *bar)
+{
+ CalAttachmentBarPrivate *priv;
+ GSList *p;
+
+ priv = bar->priv;
+
+ for (p = priv->attachments; p != NULL; p = p->next)
+ g_object_unref (p->data);
+
+ priv->attachments = NULL;
+}
+
+static void
+attachment_changed_cb (CalAttachment *attachment,
+ gpointer data)
+{
+ update (CAL_ATTACHMENT_BAR (data));
+}
+
+static void
+add_common (CalAttachmentBar *bar,
+ CalAttachment *attachment)
+{
+ g_return_if_fail (attachment != NULL);
+
+ g_signal_connect (attachment, "changed",
+ G_CALLBACK (attachment_changed_cb),
+ bar);
+
+ bar->priv->attachments = g_slist_append (bar->priv->attachments,
+ attachment);
+ bar->priv->num_attachments++;
+
+ update (bar);
+
+ g_signal_emit (bar, signals[CHANGED], 0);
+}
+
+static void
+add_from_mime_part (CalAttachmentBar *bar,
+ CamelMimePart *part)
+{
+ add_common (bar, cal_attachment_new_from_mime_part (part));
+}
+
+static void
+add_from_file (CalAttachmentBar *bar,
+ const char *file_name,
+ const char *disposition)
+{
+ CalAttachment *attachment;
+ CamelException ex;
+
+ camel_exception_init (&ex);
+ attachment = cal_attachment_new (file_name, disposition, &ex);
+ if (attachment) {
+ add_common (bar, attachment);
+ } else {
+ e_error_run((GtkWindow *)gtk_widget_get_toplevel((GtkWidget *)bar), "event-editor:no-attach",
+ file_name, camel_exception_get_description(&ex), NULL);
+ camel_exception_clear (&ex);
+ }
+}
+
+static void
+remove_attachment (CalAttachmentBar *bar,
+ CalAttachment *attachment)
+{
+ g_return_if_fail (E_IS_CAL_ATTACHMENT_BAR (bar));
+ g_return_if_fail (g_slist_find (bar->priv->attachments, attachment) != NULL);
+
+ bar->priv->attachments = g_slist_remove (bar->priv->attachments,
+ attachment);
+ bar->priv->num_attachments--;
+ if (attachment->editor_gui != NULL) {
+ GtkWidget *dialog = glade_xml_get_widget (attachment->editor_gui, "dialog");
+ g_signal_emit_by_name (dialog, "response", GTK_RESPONSE_CLOSE);
+ }
+
+ g_object_unref(attachment);
+
+ g_signal_emit (bar, signals[CHANGED], 0);
+}
+
+/* Icon list contents handling. */
+
+static void
+update (CalAttachmentBar *bar)
+{
+ CalAttachmentBarPrivate *priv;
+ GnomeIconList *icon_list;
+ GSList *p;
+
+ priv = bar->priv;
+ icon_list = GNOME_ICON_LIST (bar);
+
+ gnome_icon_list_freeze (icon_list);
+
+ gnome_icon_list_clear (icon_list);
+
+ for (p = priv->attachments; p != NULL; p = p->next) {
+ CalAttachment *attachment;
+ CamelContentType *content_type;
+ char *size_string, *label;
+ GdkPixbuf *pixbuf;
+ const char *desc;
+
+ attachment = p->data;
+ content_type = camel_mime_part_get_content_type (attachment->body);
+ /* Get the image out of the attachment
+ and create a thumbnail for it */
+ pixbuf = attachment->pixbuf_cache;
+ if (pixbuf) {
+ g_object_ref(pixbuf);
+ } else if (camel_content_type_is(content_type, "image", "*")) {
+ CamelDataWrapper *wrapper;
+ CamelStreamMem *mstream;
+ GdkPixbufLoader *loader;
+ gboolean error = TRUE;
+
+ wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (attachment->body));
+ mstream = (CamelStreamMem *) camel_stream_mem_new ();
+
+ camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) mstream);
+
+ /* Stream image into pixbuf loader */
+ loader = gdk_pixbuf_loader_new ();
+ error = !gdk_pixbuf_loader_write (loader, mstream->buffer->data, mstream->buffer->len, NULL);
+ gdk_pixbuf_loader_close (loader, NULL);
+
+ if (!error) {
+ int ratio, width, height;
+
+ /* Shrink pixbuf */
+ pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+ if (width >= height) {
+ if (width > 48) {
+ ratio = width / 48;
+ width = 48;
+ height = height / ratio;
+ }
+ } else {
+ if (height > 48) {
+ ratio = height / 48;
+ height = 48;
+ width = width / ratio;
+ }
+ }
+
+ attachment->pixbuf_cache = gdk_pixbuf_scale_simple
+ (pixbuf,
+ width,
+ height,
+ GDK_INTERP_BILINEAR);
+ pixbuf = attachment->pixbuf_cache;
+ g_object_ref(pixbuf);
+ } else {
+ pixbuf = NULL;
+ g_warning ("GdkPixbufLoader Error");
+ }
+
+ /* Destroy everything */
+ g_object_unref (loader);
+ camel_object_unref (mstream);
+ }
+
+ desc = camel_mime_part_get_description (attachment->body);
+ if (!desc || *desc == '\0')
+ desc = camel_mime_part_get_filename (attachment->body);
+
+ if (!desc)
+ desc = _("attachment");
+
+ if (attachment->size
+ && (size_string = size_to_string (attachment->size))) {
+ label = g_strdup_printf ("%s (%s)", desc, size_string);
+ g_free (size_string);
+ } else
+ label = g_strdup (desc);
+
+ if (pixbuf == NULL) {
+ char *mime_type;
+
+ mime_type = camel_content_type_simple (content_type);
+ pixbuf = e_icon_for_mime_type (mime_type, 48);
+ if (pixbuf == NULL) {
+ g_warning("cannot find icon for mime type %s (installation problem?)", mime_type);
+ /* stock_attach would be better, but its fugly scaled up */
+ pixbuf = e_icon_factory_get_icon("stock_unknown", E_ICON_SIZE_DIALOG);
+ }
+ g_free (mime_type);
+ }
+
+ if (pixbuf) {
+ gnome_icon_list_append_pixbuf (icon_list, pixbuf, NULL, label);
+ g_object_unref(pixbuf);
+ }
+
+ g_free (label);
+ }
+ gnome_icon_list_thaw (icon_list);
+}
+
+static void
+remove_selected (CalAttachmentBar *bar)
+{
+ GnomeIconList *icon_list;
+ CalAttachment *attachment;
+ GSList *attachment_list, *l;
+ GList *p;
+ int num = 0, left, dlen;
+
+ icon_list = GNOME_ICON_LIST (bar);
+
+ attachment_list = NULL;
+ p = gnome_icon_list_get_selection (icon_list);
+ dlen = g_list_length (p);
+ for ( ; p != NULL; p = p->next) {
+ num = GPOINTER_TO_INT (p->data);
+ attachment = CAL_ATTACHMENT (g_slist_nth_data (bar->priv->attachments, num));
+
+ if (g_slist_find (attachment_list, attachment) == NULL) {
+ attachment_list = g_slist_prepend (attachment_list, attachment);
+ }
+ }
+
+ for (l = attachment_list; l != NULL; l = l->next)
+ remove_attachment (bar, CAL_ATTACHMENT (l->data));
+
+ g_slist_free (attachment_list);
+
+ update (bar);
+
+ left = gnome_icon_list_get_num_icons (icon_list);
+ num = num - dlen + 1;
+ if (left > 0)
+ gnome_icon_list_focus_icon (icon_list, left > num ? num : left - 1);
+}
+
+static void
+edit_selected (CalAttachmentBar *bar)
+{
+ GnomeIconList *icon_list;
+ GList *selection;
+ GSList *attach;
+ int num;
+
+ icon_list = GNOME_ICON_LIST (bar);
+
+ selection = gnome_icon_list_get_selection (icon_list);
+ if (selection) {
+ num = GPOINTER_TO_INT (selection->data);
+ attach = g_slist_nth (bar->priv->attachments, num);
+ if (attach)
+ cal_attachment_edit ((CalAttachment *)attach->data, GTK_WIDGET (bar));
+ }
+}
+
+/* "Attach" dialog. */
+
+static void
+add_from_user (CalAttachmentBar *bar)
+{
+ CompEditor *editor;
+ GPtrArray *file_list;
+ gboolean is_inline = FALSE;
+ int i;
+
+ editor = COMP_EDITOR (gtk_widget_get_toplevel (GTK_WIDGET (bar)));
+
+
+ file_list = comp_editor_select_file_attachments (editor, &is_inline);
+ /*TODO add a good implementation here */
+ if (!file_list)
+ return;
+
+ for (i = 0; i < file_list->len; i++) {
+ add_from_file (bar, file_list->pdata[i], is_inline ? "inline" : "attachment");
+ g_free (file_list->pdata[i]);
+ }
+
+ g_ptr_array_free (file_list, TRUE);
+}
+
+/* Callbacks. */
+
+static void
+cab_add(EPopup *ep, EPopupItem *item, void *data)
+{
+ CalAttachmentBar *bar = data;
+
+ add_from_user(bar);
+}
+
+static void
+cab_properties(EPopup *ep, EPopupItem *item, void *data)
+{
+ CalAttachmentBar *bar = data;
+
+ edit_selected(bar);
+}
+
+static void
+cab_remove(EPopup *ep, EPopupItem *item, void *data)
+{
+ CalAttachmentBar *bar = data;
+
+ remove_selected(bar);
+}
+
+/* Popup menu handling. */
+static EPopupItem cab_popups[] = {
+ { E_POPUP_ITEM, "10.attach", N_("_Remove"), cab_remove, NULL, GTK_STOCK_REMOVE, EM_POPUP_ATTACHMENTS_MANY },
+ { E_POPUP_ITEM, "20.attach", N_("_Properties"), cab_properties, NULL, GTK_STOCK_PROPERTIES, EM_POPUP_ATTACHMENTS_ONE },
+ { E_POPUP_BAR, "30.attach.00", NULL, NULL, NULL, NULL, EM_POPUP_ATTACHMENTS_MANY|EM_POPUP_ATTACHMENTS_ONE },
+ { E_POPUP_ITEM, "30.attach.01", N_("_Add attachment..."), cab_add, NULL, GTK_STOCK_ADD, 0 },
+};
+
+static void
+cab_popup_position(GtkMenu *menu, int *x, int *y, gboolean *push_in, gpointer user_data)
+{
+ CalAttachmentBar *bar = user_data;
+ GnomeIconList *icon_list = user_data;
+ GList *selection;
+ GnomeCanvasPixbuf *image;
+
+ gdk_window_get_origin (((GtkWidget*) bar)->window, x, y);
+
+ selection = gnome_icon_list_get_selection (icon_list);
+ if (selection == NULL)
+ return;
+
+ image = gnome_icon_list_get_icon_pixbuf_item (icon_list, (gint)selection->data);
+ if (image == NULL)
+ return;
+
+ /* Put menu to the center of icon. */
+ *x += (int)(image->item.x1 + image->item.x2) / 2;
+ *y += (int)(image->item.y1 + image->item.y2) / 2;
+}
+
+static void
+cab_popups_free(EPopup *ep, GSList *l, void *data)
+{
+ g_slist_free(l);
+}
+
+/* if id != -1, then use it as an index for target of the popup */
+static void
+cab_popup(CalAttachmentBar *bar, GdkEventButton *event, int id)
+{
+ GList *p;
+ GSList *attachments = NULL, *menus = NULL;
+ int i;
+ EMPopup *emp;
+ EMPopupTargetAttachments *t;
+ GtkMenu *menu;
+ CalAttachment *attachment;
+
+ if (id == -1
+ || (attachment = g_slist_nth_data(bar->priv->attachments, id)) == NULL) {
+ p = gnome_icon_list_get_selection((GnomeIconList *)bar);
+ for ( ; p != NULL; p = p->next) {
+ int num = GPOINTER_TO_INT(p->data);
+ CalAttachment *attachment = g_slist_nth_data(bar->priv->attachments, num);
+
+ if (attachment && g_slist_find(attachments, attachment) == NULL) {
+ g_object_ref(attachment);
+ attachments = g_slist_prepend(attachments, attachment);
+ }
+ }
+ attachments = g_slist_reverse(attachments);
+ } else {
+ g_object_ref(attachment);
+ attachments = g_slist_prepend(attachments, attachment);
+ }
+
+ for (i=0;i<sizeof(cab_popups)/sizeof(cab_popups[0]);i++)
+ menus = g_slist_prepend(menus, &cab_popups[i]);
+
+ /** @HookPoint-EMPopup: Composer Attachment Bar Context Menu
+ * @Id: org.gnome.evolution.mail.composer.attachmentbar.popup
+ * @Class: org.gnome.evolution.mail.popup:1.0
+ * @Target: EMPopupTargetAttachments
+ *
+ * This is the context menu on the composer attachment bar.
+ */
+ emp = em_popup_new("org.gnome.evolution.mail.composer.attachmentbar.popup");
+ e_popup_add_items((EPopup *)emp, menus, NULL, cab_popups_free, bar);
+ t = em_popup_target_new_attachments(emp, attachments);
+ t->target.widget = (GtkWidget *)bar;
+ menu = e_popup_create_menu_once((EPopup *)emp, (EPopupTarget *)t, 0);
+
+ if (event == NULL)
+ gtk_menu_popup(menu, NULL, NULL, cab_popup_position, bar, 0, gtk_get_current_event_time());
+ else
+ gtk_menu_popup(menu, NULL, NULL, NULL, NULL, event->button, event->time);
+}
+
+/* GtkObject methods. */
+
+static void
+destroy (GtkObject *object)
+{
+ CalAttachmentBar *bar;
+
+ bar = CAL_ATTACHMENT_BAR (object);
+
+ if (bar->priv) {
+ free_attachment_list (bar);
+ g_free (bar->priv);
+ bar->priv = NULL;
+ }
+
+ /* TODO leaking this here to prevent a crash */
+ /*
+ if (bar->priv->source_url)
+ g_free (bar->priv->source_url);
+ if (bar->priv->comp_uid)
+ g_free (bar->priv->comp_uid);
+ */
+ if (GTK_OBJECT_CLASS (parent_class)->destroy != NULL)
+ (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+/* GtkWidget methods. */
+
+static gboolean
+popup_menu_event (GtkWidget *widget)
+{
+ cab_popup((CalAttachmentBar *)widget, NULL, -1);
+ return TRUE;
+}
+
+
+static int
+button_press_event (GtkWidget *widget, GdkEventButton *event)
+{
+ CalAttachmentBar *bar = (CalAttachmentBar *)widget;
+ GnomeIconList *icon_list = GNOME_ICON_LIST(widget);
+ int icon_number;
+
+ if (event->button != 3)
+ return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
+
+ icon_number = gnome_icon_list_get_icon_at (icon_list, event->x, event->y);
+ if (icon_number >= 0) {
+ gnome_icon_list_unselect_all(icon_list);
+ gnome_icon_list_select_icon (icon_list, icon_number);
+ }
+
+ cab_popup(bar, event, icon_number);
+
+ return TRUE;
+}
+
+static gint
+key_press_event(GtkWidget *widget, GdkEventKey *event)
+{
+ CalAttachmentBar *bar = CAL_ATTACHMENT_BAR (widget);
+
+ if (event->keyval == GDK_Delete) {
+ remove_selected (bar);
+ return TRUE;
+ }
+
+ return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
+}
+
+/* Initialization. */
+
+static void
+class_init (CalAttachmentBarClass *klass)
+{
+ GtkObjectClass *object_class;
+ GtkWidgetClass *widget_class;
+ GnomeIconListClass *icon_list_class;
+
+ object_class = GTK_OBJECT_CLASS (klass);
+ widget_class = GTK_WIDGET_CLASS (klass);
+ icon_list_class = GNOME_ICON_LIST_CLASS (klass);
+
+ parent_class = g_type_class_ref (gnome_icon_list_get_type ());
+
+ object_class->destroy = destroy;
+
+ widget_class->button_press_event = button_press_event;
+ widget_class->popup_menu = popup_menu_event;
+ widget_class->key_press_event = key_press_event;
+
+ /* Setup signals. */
+
+ signals[CHANGED] =
+ g_signal_new ("changed",
+ E_TYPE_CAL_ATTACHMENT_BAR,
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CalAttachmentBarClass, changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+}
+
+static void
+init (CalAttachmentBar *bar)
+{
+ CalAttachmentBarPrivate *priv;
+
+ priv = g_new (CalAttachmentBarPrivate, 1);
+
+ priv->attachments = NULL;
+ priv->num_attachments = 0;
+ priv->source_url = NULL;
+ priv->comp_uid = NULL;
+
+ bar->priv = priv;
+}
+
+GType
+cal_attachment_bar_get_type (void)
+{
+ static GType type = 0;
+
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (CalAttachmentBarClass),
+ NULL, NULL,
+ (GClassInitFunc) class_init,
+ NULL, NULL,
+ sizeof (CalAttachmentBar),
+ 0,
+ (GInstanceInitFunc) init,
+ };
+
+ type = g_type_register_static (GNOME_TYPE_ICON_LIST, "CalAttachmentBar", &info, 0);
+ }
+
+ return type;
+}
+
+GtkWidget *
+cal_attachment_bar_new (GtkAdjustment *adj)
+{
+ CalAttachmentBar *new;
+ GnomeIconList *icon_list;
+ int width, height, icon_width, window_height;
+ PangoFontMetrics *metrics;
+ PangoContext *context;
+
+ new = g_object_new (cal_attachment_bar_get_type (), NULL);
+
+ icon_list = GNOME_ICON_LIST (new);
+
+ context = gtk_widget_get_pango_context ((GtkWidget *) new);
+ metrics = pango_context_get_metrics (context, ((GtkWidget *) new)->style->font_desc, pango_context_get_language (context));
+ width = PANGO_PIXELS (pango_font_metrics_get_approximate_char_width (metrics)) * 15;
+ /* This should be *2, but the icon list creates too much space above ... */
+ height = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) + pango_font_metrics_get_descent (metrics)) * 3;
+ pango_font_metrics_unref (metrics);
+
+ icon_width = ICON_WIDTH + ICON_SPACING + ICON_BORDER + ICON_TEXT_SPACING;
+ icon_width = MAX (icon_width, width);
+
+ gnome_icon_list_construct (icon_list, icon_width, adj, 0);
+
+ window_height = ICON_WIDTH + ICON_SPACING + ICON_BORDER + ICON_TEXT_SPACING + height;
+ gtk_widget_set_size_request (GTK_WIDGET (new), icon_width * 4, window_height);
+
+ gnome_icon_list_set_separators (icon_list, ICON_SEPARATORS);
+ gnome_icon_list_set_row_spacing (icon_list, ICON_ROW_SPACING);
+ gnome_icon_list_set_col_spacing (icon_list, ICON_COL_SPACING);
+ gnome_icon_list_set_icon_border (icon_list, ICON_BORDER);
+ gnome_icon_list_set_text_spacing (icon_list, ICON_TEXT_SPACING);
+ gnome_icon_list_set_selection_mode (icon_list, GTK_SELECTION_MULTIPLE);
+
+ return GTK_WIDGET (new);
+}
+
+static char *
+get_default_charset (void)
+{
+ GConfClient *gconf;
+ const char *locale;
+ char *charset;
+
+ gconf = gconf_client_get_default ();
+ charset = gconf_client_get_string (gconf, "/apps/evolution/mail/composer/charset", NULL);
+
+ if (!charset || charset[0] == '\0') {
+ g_free (charset);
+ charset = gconf_client_get_string (gconf, "/apps/evolution/mail/format/charset", NULL);
+ if (charset && charset[0] == '\0') {
+ g_free (charset);
+ charset = NULL;
+ }
+ }
+
+ g_object_unref (gconf);
+
+ if (!charset && (locale = e_iconv_locale_charset ()))
+ charset = g_strdup (locale);
+
+ return charset ? charset : g_strdup ("us-ascii");
+}
+
+void
+cal_attachment_bar_set_source_url (CalAttachmentBar *bar, char *source_url)
+{
+ if (bar->priv->source_url)
+ g_free (bar->priv->source_url);
+ bar->priv->source_url = source_url;
+}
+
+void
+cal_attachment_bar_set_comp_uid (CalAttachmentBar *bar, char *comp_uid)
+{
+ if (bar->priv->comp_uid)
+ g_free (bar->priv->comp_uid);
+ bar->priv->comp_uid = comp_uid;
+}
+
+guint
+cal_attachment_bar_get_num_attachments (CalAttachmentBar *bar)
+{
+ g_return_val_if_fail (bar != NULL, 0);
+ g_return_val_if_fail (E_IS_CAL_ATTACHMENT_BAR (bar), 0);
+
+ return bar->priv->num_attachments;
+}
+
+void
+cal_attachment_bar_attach (CalAttachmentBar *bar,
+ const gchar *file_name)
+{
+ g_return_if_fail (E_IS_CAL_ATTACHMENT_BAR (bar));
+
+ if (file_name == NULL)
+ add_from_user (bar);
+ else
+ add_from_file (bar, file_name, "attachment");
+}
+
+/*
+ * TODO write a good documentation
+ * this method serializes the attached files on the filesystem
+ * and sets the urls to the component
+ */
+GSList *
+cal_attachment_bar_get_attachment_list (CalAttachmentBar *bar)
+{
+ CalAttachmentBarPrivate *priv;
+ CalAttachment *attachment;
+ GSList *list = NULL, *p;
+
+ priv = bar->priv;
+ for (p = priv->attachments; p != NULL; p = p->next) {
+ CamelDataWrapper *wrapper;
+ CamelStreamMem *mstream;
+ unsigned char *buffer = NULL;
+ int fd;
+ char *attach_file_url;
+
+ attachment = p->data;
+ wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (attachment->body));
+ mstream = (CamelStreamMem *) camel_stream_mem_new ();
+
+ camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) mstream);
+ buffer = g_memdup (mstream->buffer->data, mstream->buffer->len);
+
+
+ /* Extract the content from the stream and write it down
+ * as a mime part file into the directory denoting the
+ * calendar source */
+ /* TODO convert it into a generic path using the source
+ * uri and use content-id to generate filename */
+ attach_file_url = g_strconcat (priv->source_url,
+ priv->comp_uid, "-",
+ camel_file_util_safe_filename
+ (camel_mime_part_get_filename (attachment->body)), NULL);
+
+ fd = open (attach_file_url+7, O_RDWR|O_CREAT|O_TRUNC, 0600);
+ if (fd == -1) {
+ /* TODO handle error conditions */
+ g_message ("DEBUG: could not open the file descriptor\n");
+ }
+
+ /* write the camel mime part (attachment->body) into the file*/
+ if (camel_write (fd, buffer, mstream->buffer->len) == -1) {
+ /* TODO handle error condition */
+ g_message ("DEBUG: camel write failed.\n");
+ }
+ list = g_slist_append (list, g_strdup (attach_file_url));
+ /* do i need to close the fd */
+ g_free (attach_file_url);
+ }
+
+ return list;
+}
+
+char *
+cal_attachment_bar_get_nth_attachment_filename (CalAttachmentBar *bar, int n)
+{
+ CalAttachment *attach;
+
+ g_return_val_if_fail (bar != NULL, 0);
+ g_return_val_if_fail (E_IS_CAL_ATTACHMENT_BAR (bar), 0);
+
+ attach = g_slist_nth_data (bar->priv->attachments, n);
+ return g_strconcat (bar->priv->source_url, bar->priv->comp_uid, "-", camel_mime_part_get_filename
+ (attach->body), NULL);
+}
+
+/* TODO (sigh) this loads the attachments
+ * from the file system just for displaying the iconlist
+ * need a better approach here.
+ */
+void
+cal_attachment_bar_set_attachment_list (CalAttachmentBar *bar, GSList *attach_list)
+{
+ CalAttachmentBarPrivate *priv;
+ GSList *p;
+
+ priv = bar->priv;
+
+ if (priv->attachments) {
+ /* To prevent repopulating the
+ * bar due to redraw functions in fill_widget.
+ * Assumes it can be set only once.
+ */
+ return;
+ }
+
+ for (p = attach_list; p != NULL; p = p->next) {
+ char *attach_filename;
+ CalAttachment *attach;
+
+ attach_filename = (char *) p->data;
+ /* should we assert if g_str_has_prefix (attach_filename, "file://"))
+ * here
+ */
+ /* get url sans protocol and add it to the bar.
+ * how to set the filename properly */
+ cal_attachment_bar_attach (bar, attach_filename +7);
+ /* set file name correctly on the display */
+ attach = g_slist_nth_data (priv->attachments,
+ priv->num_attachments-1);
+ camel_mime_part_set_filename (attach->body,
+ attach_filename + strlen (priv->source_url)+
+ strlen (priv->comp_uid) + 1);
+ update (bar);
+ }
+}
+
+GSList *
+cal_attachment_bar_get_mime_attach_list (CalAttachmentBar *bar)
+{
+ CalAttachmentBarPrivate *priv;
+ struct CalMimeAttach *cal_mime_attach;
+ GSList *attach_list = NULL, *l;
+
+ /* TODO assert sanity of bar */
+ priv = bar->priv;
+ for (l = priv->attachments; l ; l = l->next) {
+
+ CalAttachment *attach = (CalAttachment *) l->data;
+ CamelDataWrapper *wrapper;
+ CamelStreamMem *mstream;
+ unsigned char *buffer = NULL;
+ char *desc;
+
+ cal_mime_attach = g_malloc0 (sizeof (struct CalMimeAttach));
+ wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (attach->body));
+ mstream = (CamelStreamMem *) camel_stream_mem_new ();
+
+ camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) mstream);
+ buffer = g_memdup (mstream->buffer->data, mstream->buffer->len);
+
+ cal_mime_attach->encoded_data = buffer;
+ cal_mime_attach->length = mstream->buffer->len;
+ cal_mime_attach->filename = g_strdup (camel_mime_part_get_filename
+ ((CamelMimePart *) attach->body));
+ desc = camel_mime_part_get_description ((CamelMimePart *) attach->body);
+ if (!desc || *desc == '\0')
+ desc = _("attachment");
+ cal_mime_attach->description = g_strdup (desc);
+ cal_mime_attach->content_type = g_strdup (camel_data_wrapper_get_mime_type (wrapper));
+
+ attach_list = g_slist_append (attach_list, cal_mime_attach);
+
+ }
+
+ return attach_list;
+}