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Diffstat (limited to 'e-util/e-attachment-button.c')
| -rw-r--r-- | e-util/e-attachment-button.c | 868 |
1 files changed, 868 insertions, 0 deletions
diff --git a/e-util/e-attachment-button.c b/e-util/e-attachment-button.c new file mode 100644 index 0000000000..a2057e3354 --- /dev/null +++ b/e-util/e-attachment-button.c @@ -0,0 +1,868 @@ +/* + * 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"); +} |