/* * e-attachment-button.c * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) version 3. * * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with the program; if not, see <http://www.gnu.org/licenses/> * * * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) * */ /* Much of the popup menu logic here was ripped from GtkMenuToolButton. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "e-attachment-button.h" #define E_ATTACHMENT_BUTTON_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE \ ((obj), E_TYPE_ATTACHMENT_BUTTON, EAttachmentButtonPrivate)) struct _EAttachmentButtonPrivate { EAttachmentView *view; EAttachment *attachment; gulong reference_handler_id; GBinding *can_show_binding; GBinding *shown_binding; GtkWidget *expand_button; GtkWidget *toggle_button; GtkWidget *cell_view; GtkWidget *popup_menu; guint expandable : 1; guint expanded : 1; }; enum { PROP_0, PROP_ATTACHMENT, PROP_EXPANDABLE, PROP_EXPANDED, PROP_VIEW }; G_DEFINE_TYPE ( EAttachmentButton, e_attachment_button, GTK_TYPE_HBOX) static void attachment_button_menu_deactivate_cb (EAttachmentButton *button) { EAttachmentView *view; GtkActionGroup *action_group; GtkToggleButton *toggle_button; view = e_attachment_button_get_view (button); action_group = e_attachment_view_get_action_group (view, "inline"); toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button); gtk_toggle_button_set_active (toggle_button, FALSE); gtk_action_group_set_visible (action_group, FALSE); } static void attachment_button_menu_position (GtkMenu *menu, gint *x, gint *y, gboolean *push_in, EAttachmentButton *button) { GtkRequisition menu_requisition; GtkTextDirection direction; GtkAllocation allocation; GdkRectangle monitor; GdkScreen *screen; GdkWindow *window; GtkWidget *widget; GtkWidget *toggle_button; gint monitor_num; widget = GTK_WIDGET (button); toggle_button = button->priv->toggle_button; gtk_widget_get_preferred_size (GTK_WIDGET (menu), &menu_requisition, NULL); window = gtk_widget_get_parent_window (widget); screen = gtk_widget_get_screen (GTK_WIDGET (menu)); monitor_num = gdk_screen_get_monitor_at_window (screen, window); if (monitor_num < 0) monitor_num = 0; gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor); gtk_widget_get_allocation (widget, &allocation); gdk_window_get_origin (window, x, y); *x += allocation.x; *y += allocation.y; direction = gtk_widget_get_direction (widget); if (direction == GTK_TEXT_DIR_LTR) *x += MAX (allocation.width - menu_requisition.width, 0); else if (menu_requisition.width > allocation.width) *x -= menu_requisition.width - allocation.width; gtk_widget_get_allocation (toggle_button, &allocation); if ((*y + allocation.height + menu_requisition.height) <= monitor.y + monitor.height) *y += allocation.height; else if ((*y - menu_requisition.height) >= monitor.y) *y -= menu_requisition.height; else if (monitor.y + monitor.height - (*y + allocation.height) > *y) *y += allocation.height; else *y -= menu_requisition.height; *push_in = FALSE; } static void attachment_button_select_path (EAttachmentButton *button) { EAttachmentView *view; EAttachment *attachment; GtkTreeRowReference *reference; GtkTreePath *path; attachment = e_attachment_button_get_attachment (button); g_return_if_fail (E_IS_ATTACHMENT (attachment)); reference = e_attachment_get_reference (attachment); g_return_if_fail (gtk_tree_row_reference_valid (reference)); view = e_attachment_button_get_view (button); path = gtk_tree_row_reference_get_path (reference); e_attachment_view_unselect_all (view); e_attachment_view_select_path (view, path); gtk_tree_path_free (path); } static void attachment_button_show_popup_menu (EAttachmentButton *button, GdkEventButton *event) { EAttachmentView *view; GtkActionGroup *action_group; GtkToggleButton *toggle_button; view = e_attachment_button_get_view (button); action_group = e_attachment_view_get_action_group (view, "inline"); toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button); attachment_button_select_path (button); gtk_toggle_button_set_active (toggle_button, TRUE); e_attachment_view_show_popup_menu ( view, event, (GtkMenuPositionFunc) attachment_button_menu_position, button); gtk_action_group_set_visible (action_group, TRUE); } static void attachment_button_update_cell_view (EAttachmentButton *button) { GtkCellView *cell_view; EAttachment *attachment; GtkTreeRowReference *reference; GtkTreeModel *model = NULL; GtkTreePath *path = NULL; cell_view = GTK_CELL_VIEW (button->priv->cell_view); attachment = e_attachment_button_get_attachment (button); if (attachment == NULL) goto exit; reference = e_attachment_get_reference (attachment); if (reference == NULL) goto exit; model = gtk_tree_row_reference_get_model (reference); path = gtk_tree_row_reference_get_path (reference); exit: gtk_cell_view_set_model (cell_view, model); gtk_cell_view_set_displayed_row (cell_view, path); if (path != NULL) gtk_tree_path_free (path); } static void attachment_button_update_pixbufs (EAttachmentButton *button) { GtkCellLayout *cell_layout; GtkCellRenderer *renderer; GdkPixbuf *pixbuf_expander_open; GdkPixbuf *pixbuf_expander_closed; GList *list; /* Grab the first cell renderer. */ cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view); list = gtk_cell_layout_get_cells (cell_layout); renderer = GTK_CELL_RENDERER (list->data); g_list_free (list); pixbuf_expander_open = gtk_widget_render_icon ( GTK_WIDGET (button), GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_BUTTON, NULL); pixbuf_expander_closed = gtk_widget_render_icon ( GTK_WIDGET (button), GTK_STOCK_GO_FORWARD, GTK_ICON_SIZE_BUTTON, NULL); g_object_set ( renderer, "pixbuf-expander-open", pixbuf_expander_open, "pixbuf-expander-closed", pixbuf_expander_closed, NULL); g_object_unref (pixbuf_expander_open); g_object_unref (pixbuf_expander_closed); } static void attachment_button_expand_clicked_cb (EAttachmentButton *button) { gboolean expanded; expanded = e_attachment_button_get_expanded (button); e_attachment_button_set_expanded (button, !expanded); } static void attachment_button_expand_drag_begin_cb (EAttachmentButton *button, GdkDragContext *context) { EAttachmentView *view; view = e_attachment_button_get_view (button); attachment_button_select_path (button); e_attachment_view_drag_begin (view, context); } static void attachment_button_expand_drag_data_get_cb (EAttachmentButton *button, GdkDragContext *context, GtkSelectionData *selection, guint info, guint time) { EAttachmentView *view; if (button->priv->attachment) { gchar *mime_type; mime_type = e_attachment_get_mime_type ( button->priv->attachment); if (mime_type) { gboolean processed = FALSE; GdkAtom atom; gchar *atom_name; atom = gtk_selection_data_get_target (selection); atom_name = gdk_atom_name (atom); if (g_strcmp0 (atom_name, mime_type) == 0) { CamelMimePart *mime_part; mime_part = e_attachment_get_mime_part ( button->priv->attachment); if (CAMEL_IS_MIME_PART (mime_part)) { CamelDataWrapper *wrapper; CamelStream *stream; GByteArray *buffer; buffer = g_byte_array_new (); stream = camel_stream_mem_new (); camel_stream_mem_set_byte_array ( CAMEL_STREAM_MEM (stream), buffer); wrapper = camel_medium_get_content ( CAMEL_MEDIUM (mime_part)); camel_data_wrapper_decode_to_stream_sync ( wrapper, stream, NULL, NULL); g_object_unref (stream); gtk_selection_data_set ( selection, atom, 8, buffer->data, buffer->len); processed = TRUE; g_byte_array_free (buffer, TRUE); } } g_free (atom_name); g_free (mime_type); if (processed) return; } } view = e_attachment_button_get_view (button); e_attachment_view_drag_data_get ( view, context, selection, info, time); } static void attachment_button_expand_drag_end_cb (EAttachmentButton *button, GdkDragContext *context) { EAttachmentView *view; view = e_attachment_button_get_view (button); e_attachment_view_drag_end (view, context); } static gboolean attachment_button_toggle_button_press_event_cb (EAttachmentButton *button, GdkEventButton *event) { if (event->button == 1) { attachment_button_show_popup_menu (button, event); return TRUE; } return FALSE; } static void attachment_button_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { switch (property_id) { case PROP_ATTACHMENT: e_attachment_button_set_attachment ( E_ATTACHMENT_BUTTON (object), g_value_get_object (value)); return; case PROP_EXPANDABLE: e_attachment_button_set_expandable ( E_ATTACHMENT_BUTTON (object), g_value_get_boolean (value)); return; case PROP_EXPANDED: e_attachment_button_set_expanded ( E_ATTACHMENT_BUTTON (object), g_value_get_boolean (value)); return; case PROP_VIEW: e_attachment_button_set_view ( E_ATTACHMENT_BUTTON (object), g_value_get_object (value)); return; } G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } static void attachment_button_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { switch (property_id) { case PROP_ATTACHMENT: g_value_set_object ( value, e_attachment_button_get_attachment ( E_ATTACHMENT_BUTTON (object))); return; case PROP_EXPANDABLE: g_value_set_boolean ( value, e_attachment_button_get_expandable ( E_ATTACHMENT_BUTTON (object))); return; case PROP_EXPANDED: g_value_set_boolean ( value, e_attachment_button_get_expanded ( E_ATTACHMENT_BUTTON (object))); return; case PROP_VIEW: g_value_set_object ( value, e_attachment_button_get_view ( E_ATTACHMENT_BUTTON (object))); return; } G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } static void attachment_button_dispose (GObject *object) { EAttachmentButtonPrivate *priv; priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (object); if (priv->view != NULL) { g_object_unref (priv->view); priv->view = NULL; } if (priv->attachment != NULL) { g_signal_handler_disconnect ( priv->attachment, priv->reference_handler_id); g_object_unref (priv->attachment); priv->attachment = NULL; } if (priv->expand_button != NULL) { g_object_unref (priv->expand_button); priv->expand_button = NULL; } if (priv->toggle_button != NULL) { g_object_unref (priv->toggle_button); priv->toggle_button = NULL; } if (priv->cell_view != NULL) { g_object_unref (priv->cell_view); priv->cell_view = NULL; } if (priv->popup_menu != NULL) { g_signal_handlers_disconnect_matched ( priv->popup_menu, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, object); g_object_unref (priv->popup_menu); priv->popup_menu = NULL; } /* Chain up to parent's dispose() method. */ G_OBJECT_CLASS (e_attachment_button_parent_class)->dispose (object); } static void attachment_button_style_set (GtkWidget *widget, GtkStyle *previous_style) { EAttachmentButton *button; /* Chain up to parent's style_set() method. */ GTK_WIDGET_CLASS (e_attachment_button_parent_class)-> style_set (widget, previous_style); button = E_ATTACHMENT_BUTTON (widget); attachment_button_update_pixbufs (button); } static void e_attachment_button_class_init (EAttachmentButtonClass *class) { GObjectClass *object_class; GtkWidgetClass *widget_class; g_type_class_add_private (class, sizeof (EAttachmentButtonPrivate)); object_class = G_OBJECT_CLASS (class); object_class->set_property = attachment_button_set_property; object_class->get_property = attachment_button_get_property; object_class->dispose = attachment_button_dispose; widget_class = GTK_WIDGET_CLASS (class); widget_class->style_set = attachment_button_style_set; g_object_class_install_property ( object_class, PROP_ATTACHMENT, g_param_spec_object ( "attachment", "Attachment", NULL, E_TYPE_ATTACHMENT, G_PARAM_READWRITE)); g_object_class_install_property ( object_class, PROP_EXPANDABLE, g_param_spec_boolean ( "expandable", "Expandable", NULL, TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property ( object_class, PROP_EXPANDED, g_param_spec_boolean ( "expanded", "Expanded", NULL, FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property ( object_class, PROP_VIEW, g_param_spec_object ( "view", "View", NULL, E_TYPE_ATTACHMENT_VIEW, G_PARAM_READWRITE)); } static void e_attachment_button_init (EAttachmentButton *button) { GtkCellRenderer *renderer; GtkCellLayout *cell_layout; GtkTargetEntry *targets; GtkTargetList *list; GtkWidget *container; GtkWidget *widget; GtkStyleContext *context; gint n_targets; button->priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (button); /* Configure Widgets */ container = GTK_WIDGET (button); context = gtk_widget_get_style_context (container); gtk_style_context_add_class (context, "linked"); widget = gtk_button_new (); gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0); button->priv->expand_button = g_object_ref (widget); gtk_widget_show (widget); g_object_bind_property ( button, "expandable", widget, "sensitive", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE); widget = gtk_toggle_button_new (); gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0); button->priv->toggle_button = g_object_ref (widget); gtk_widget_show (widget); container = button->priv->expand_button; widget = gtk_cell_view_new (); gtk_container_add (GTK_CONTAINER (container), widget); button->priv->cell_view = g_object_ref (widget); gtk_widget_show (widget); container = button->priv->toggle_button; widget = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE); gtk_container_add (GTK_CONTAINER (container), widget); gtk_widget_show (widget); /* Configure Renderers */ cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view); renderer = gtk_cell_renderer_pixbuf_new (); g_object_set (renderer, "is-expander", TRUE, NULL); gtk_cell_layout_pack_start (cell_layout, renderer, FALSE); g_object_bind_property ( button, "expanded", renderer, "is-expanded", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE); renderer = gtk_cell_renderer_pixbuf_new (); g_object_set (renderer, "stock-size", GTK_ICON_SIZE_BUTTON, NULL); gtk_cell_layout_pack_start (cell_layout, renderer, FALSE); gtk_cell_layout_add_attribute ( cell_layout, renderer, "gicon", E_ATTACHMENT_STORE_COLUMN_ICON); /* Configure Drag and Drop */ list = gtk_target_list_new (NULL, 0); gtk_target_list_add_uri_targets (list, 0); targets = gtk_target_table_new_from_list (list, &n_targets); gtk_drag_source_set ( button->priv->expand_button, GDK_BUTTON1_MASK, targets, n_targets, GDK_ACTION_COPY); gtk_drag_source_set ( button->priv->toggle_button, GDK_BUTTON1_MASK, targets, n_targets, GDK_ACTION_COPY); gtk_target_table_free (targets, n_targets); gtk_target_list_unref (list); /* Configure Signal Handlers */ g_signal_connect_swapped ( button->priv->expand_button, "clicked", G_CALLBACK (attachment_button_expand_clicked_cb), button); g_signal_connect_swapped ( button->priv->expand_button, "drag-begin", G_CALLBACK (attachment_button_expand_drag_begin_cb), button); g_signal_connect_swapped ( button->priv->expand_button, "drag-data-get", G_CALLBACK (attachment_button_expand_drag_data_get_cb), button); g_signal_connect_swapped ( button->priv->expand_button, "drag-end", G_CALLBACK (attachment_button_expand_drag_end_cb), button); g_signal_connect_swapped ( button->priv->toggle_button, "button-press-event", G_CALLBACK (attachment_button_toggle_button_press_event_cb), button); g_signal_connect_swapped ( button->priv->toggle_button, "drag-begin", G_CALLBACK (attachment_button_expand_drag_begin_cb), button); g_signal_connect_swapped ( button->priv->toggle_button, "drag-data-get", G_CALLBACK (attachment_button_expand_drag_data_get_cb), button); g_signal_connect_swapped ( button->priv->toggle_button, "drag-end", G_CALLBACK (attachment_button_expand_drag_end_cb), button); } GtkWidget * e_attachment_button_new () { return g_object_new ( E_TYPE_ATTACHMENT_BUTTON, NULL); } EAttachmentView * e_attachment_button_get_view (EAttachmentButton *button) { g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL); return button->priv->view; } void e_attachment_button_set_view (EAttachmentButton *button, EAttachmentView *view) { GtkWidget *popup_menu; g_return_if_fail (button->priv->view == NULL); g_object_ref (view); if (button->priv->view) g_object_unref (button->priv->view); button->priv->view = view; popup_menu = e_attachment_view_get_popup_menu (view); g_signal_connect_swapped ( popup_menu, "deactivate", G_CALLBACK (attachment_button_menu_deactivate_cb), button); /* Keep a reference to the popup menu so we can * disconnect the signal handler in dispose(). */ if (button->priv->popup_menu) g_object_unref (button->priv->popup_menu); button->priv->popup_menu = g_object_ref (popup_menu); } EAttachment * e_attachment_button_get_attachment (EAttachmentButton *button) { g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL); return button->priv->attachment; } void e_attachment_button_set_attachment (EAttachmentButton *button, EAttachment *attachment) { GtkTargetEntry *targets; GtkTargetList *list; gint n_targets; g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button)); if (attachment != NULL) { g_return_if_fail (E_IS_ATTACHMENT (attachment)); g_object_ref (attachment); } if (button->priv->attachment != NULL) { g_object_unref (button->priv->can_show_binding); button->priv->can_show_binding = NULL; g_object_unref (button->priv->shown_binding); button->priv->shown_binding = NULL; g_signal_handler_disconnect ( button->priv->attachment, button->priv->reference_handler_id); g_object_unref (button->priv->attachment); } button->priv->attachment = attachment; if (attachment != NULL) { GBinding *binding; gulong handler_id; binding = g_object_bind_property ( attachment, "can-show", button, "expandable", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE); button->priv->can_show_binding = binding; binding = g_object_bind_property ( attachment, "shown", button, "expanded", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE); button->priv->shown_binding = binding; handler_id = g_signal_connect_swapped ( attachment, "notify::reference", G_CALLBACK (attachment_button_update_cell_view), button); button->priv->reference_handler_id = handler_id; attachment_button_update_cell_view (button); attachment_button_update_pixbufs (button); } /* update drag sources */ list = gtk_target_list_new (NULL, 0); gtk_target_list_add_uri_targets (list, 0); if (attachment) { gchar *simple_type; simple_type = e_attachment_get_mime_type (attachment); if (simple_type) { GtkTargetEntry attach_entry[] = { { NULL, 0, 2 } }; attach_entry[0].target = simple_type; gtk_target_list_add_table ( list, attach_entry, G_N_ELEMENTS (attach_entry)); g_free (simple_type); } } targets = gtk_target_table_new_from_list (list, &n_targets); gtk_drag_source_set ( button->priv->expand_button, GDK_BUTTON1_MASK, targets, n_targets, GDK_ACTION_COPY); gtk_drag_source_set ( button->priv->toggle_button, GDK_BUTTON1_MASK, targets, n_targets, GDK_ACTION_COPY); gtk_target_table_free (targets, n_targets); gtk_target_list_unref (list); g_object_notify (G_OBJECT (button), "attachment"); } gboolean e_attachment_button_get_expandable (EAttachmentButton *button) { g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE); return button->priv->expandable; } void e_attachment_button_set_expandable (EAttachmentButton *button, gboolean expandable) { g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button)); if (button->priv->expandable == expandable) return; button->priv->expandable = expandable; if (!expandable) e_attachment_button_set_expanded (button, FALSE); g_object_notify (G_OBJECT (button), "expandable"); } gboolean e_attachment_button_get_expanded (EAttachmentButton *button) { g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE); return button->priv->expanded; } void e_attachment_button_set_expanded (EAttachmentButton *button, gboolean expanded) { g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button)); if (button->priv->expanded == expanded) return; button->priv->expanded = expanded; g_object_notify (G_OBJECT (button), "expanded"); }