/*
* e-cell-combo.c: Combo cell renderer
*
* 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/>
*
*
* Authors:
* Damon Chaplin <damon@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
/*
* ECellCombo - a subclass of ECellPopup used to support popup lists like a
* GtkCombo widget. It only supports a basic popup list of strings at present,
* with no auto-completion.
*/
/*
* Notes: (handling pointer grabs and GTK+ grabs is a nightmare!)
*
* o We must grab the pointer when we show the popup, so that if any buttons
* are pressed outside the application we hide the popup.
*
* o We have to be careful when popping up any widgets which also grab the
* pointer at some point, since we will lose our own pointer grab.
* When we pop up a list it will grab the pointer itself when an item is
* selected, and release the grab when the button is released.
* Fortunately we hide the popup at this point, so it isn't a problem.
* But for other types of widgets in the popup it could cause trouble.
* - I think GTK+ should provide help for this (nested pointer grabs?).
*
* o We must set the 'owner_events' flag of the pointer grab to TRUE so that
* pointer events get reported to all the application windows as normal.
* If we don't do this then the widgets in the popup may not work properly.
*
* o We must do a gtk_grab_add() so that we only allow events to go to the
* widgets within the popup (though some special events still get reported
* to the widget owning the window). Doing th gtk_grab_add() on the toplevel
* popup window should be fine. We can then check for any events that should
* close the popup, like the Escape key, or a button press outside the popup.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-cell-combo.h"
#include <string.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>
#include "e-cell-text.h"
#include "e-table-item.h"
#include "e-unicode.h"
#define d(x)
/* The height to make the popup list if there aren't any items in it. */
#define E_CELL_COMBO_LIST_EMPTY_HEIGHT 15
static void e_cell_combo_dispose (GObject *object);
static gint e_cell_combo_do_popup (ECellPopup *ecp,
GdkEvent *event,
gint row,
gint view_col);
static void e_cell_combo_select_matching_item
(ECellCombo *ecc);
static void e_cell_combo_show_popup (ECellCombo *ecc,
gint row,
gint view_col);
static void e_cell_combo_get_popup_pos (ECellCombo *ecc,
gint row,
gint view_col,
gint *x,
gint *y,
gint *height,
gint *width);
static void e_cell_combo_selection_changed (GtkTreeSelection *selection,
ECellCombo *ecc);
static gint e_cell_combo_button_press (GtkWidget *popup_window,
GdkEvent *button_event,
ECellCombo *ecc);
static gint e_cell_combo_button_release (GtkWidget *popup_window,
GdkEvent *button_event,
ECellCombo *ecc);
static gint e_cell_combo_key_press (GtkWidget *popup_window,
GdkEvent *key_event,
ECellCombo *ecc);
static void e_cell_combo_update_cell (ECellCombo *ecc);
static void e_cell_combo_restart_edit (ECellCombo *ecc);
G_DEFINE_TYPE (ECellCombo, e_cell_combo, E_TYPE_CELL_POPUP)
static void
e_cell_combo_class_init (ECellComboClass *class)
{
ECellPopupClass *ecpc = E_CELL_POPUP_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->dispose = e_cell_combo_dispose;
ecpc->popup = e_cell_combo_do_popup;
}
static void
e_cell_combo_init (ECellCombo *ecc)
{
GtkWidget *frame;
AtkObject *a11y;
GtkListStore *store;
GtkTreeSelection *selection;
GtkScrolledWindow *scrolled_window;
/* We create one popup window for the ECell, since there will only
* ever be one popup in use at a time. */
ecc->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_type_hint (
GTK_WINDOW (ecc->popup_window), GDK_WINDOW_TYPE_HINT_COMBO);
gtk_window_set_resizable (GTK_WINDOW (ecc->popup_window), TRUE);
frame = gtk_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (ecc->popup_window), frame);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_widget_show (frame);
ecc->popup_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
scrolled_window = GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window);
gtk_scrolled_window_set_policy (
scrolled_window, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_can_focus (
gtk_scrolled_window_get_hscrollbar (scrolled_window), FALSE);
gtk_widget_set_can_focus (
gtk_scrolled_window_get_vscrollbar (scrolled_window), FALSE);
gtk_container_add (GTK_CONTAINER (frame), ecc->popup_scrolled_window);
gtk_widget_show (ecc->popup_scrolled_window);
store = gtk_list_store_new (1, G_TYPE_STRING);
ecc->popup_tree_view =
gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
gtk_tree_view_append_column (
GTK_TREE_VIEW (ecc->popup_tree_view),
gtk_tree_view_column_new_with_attributes (
"Text", gtk_cell_renderer_text_new (),
"text", 0, NULL));
gtk_tree_view_set_headers_visible (
GTK_TREE_VIEW (ecc->popup_tree_view), FALSE);
selection = gtk_tree_view_get_selection (
GTK_TREE_VIEW (ecc->popup_tree_view));
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
gtk_scrolled_window_add_with_viewport (
GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window),
ecc->popup_tree_view);
gtk_container_set_focus_vadjustment (
GTK_CONTAINER (ecc->popup_tree_view),
gtk_scrolled_window_get_vadjustment (
GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
gtk_container_set_focus_hadjustment (
GTK_CONTAINER (ecc->popup_tree_view),
gtk_scrolled_window_get_hadjustment (
GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
gtk_widget_show (ecc->popup_tree_view);
a11y = gtk_widget_get_accessible (ecc->popup_tree_view);
atk_object_set_name (a11y, _("popup list"));
g_signal_connect (
selection, "changed",
G_CALLBACK (e_cell_combo_selection_changed), ecc);
g_signal_connect (
ecc->popup_window, "button_press_event",
G_CALLBACK (e_cell_combo_button_press), ecc);
g_signal_connect (
ecc->popup_window, "button_release_event",
G_CALLBACK (e_cell_combo_button_release), ecc);
g_signal_connect (
ecc->popup_window, "key_press_event",
G_CALLBACK (e_cell_combo_key_press), ecc);
}
/**
* e_cell_combo_new:
*
* Creates a new ECellCombo renderer.
*
* Returns: an ECellCombo object.
*/
ECell *
e_cell_combo_new (void)
{
return g_object_new (E_TYPE_CELL_COMBO, NULL);
}
/*
* GObject::dispose method
*/
static void
e_cell_combo_dispose (GObject *object)
{
ECellCombo *ecc = E_CELL_COMBO (object);
if (ecc->popup_window != NULL) {
gtk_widget_destroy (ecc->popup_window);
ecc->popup_window = NULL;
}
if (ecc->grabbed_keyboard != NULL) {
gdk_device_ungrab (ecc->grabbed_keyboard, GDK_CURRENT_TIME);
g_object_unref (ecc->grabbed_keyboard);
ecc->grabbed_keyboard = NULL;
}
if (ecc->grabbed_pointer != NULL) {
gdk_device_ungrab (ecc->grabbed_pointer, GDK_CURRENT_TIME);
g_object_unref (ecc->grabbed_pointer);
ecc->grabbed_pointer = NULL;
}
G_OBJECT_CLASS (e_cell_combo_parent_class)->dispose (object);
}
void
e_cell_combo_set_popdown_strings (ECellCombo *ecc,
GList *strings)
{
GList *elem;
GtkListStore *store;
g_return_if_fail (E_IS_CELL_COMBO (ecc));
g_return_if_fail (strings != NULL);
store = GTK_LIST_STORE (
gtk_tree_view_get_model (
GTK_TREE_VIEW (ecc->popup_tree_view)));
gtk_list_store_clear (store);
for (elem = strings; elem; elem = elem->next) {
GtkTreeIter iter;
gchar *utf8_text = elem->data;
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, utf8_text, -1);
}
}
static gint
e_cell_combo_do_popup (ECellPopup *ecp,
GdkEvent *event,
gint row,
gint view_col)
{
ECellCombo *ecc = E_CELL_COMBO (ecp);
GtkTreeSelection *selection;
GdkGrabStatus grab_status;
GdkWindow *window;
GdkDevice *keyboard;
GdkDevice *pointer;
GdkDevice *event_device;
guint32 event_time;
g_return_val_if_fail (ecc->grabbed_keyboard == NULL, FALSE);
g_return_val_if_fail (ecc->grabbed_pointer == NULL, FALSE);
selection = gtk_tree_view_get_selection (
GTK_TREE_VIEW (ecc->popup_tree_view));
g_signal_handlers_block_by_func (
selection, e_cell_combo_selection_changed, ecc);
e_cell_combo_show_popup (ecc, row, view_col);
e_cell_combo_select_matching_item (ecc);
g_signal_handlers_unblock_by_func (
selection, e_cell_combo_selection_changed, ecc);
window = gtk_widget_get_window (ecc->popup_tree_view);
event_device = gdk_event_get_device (event);
event_time = gdk_event_get_time (event);
if (gdk_device_get_source (event_device) == GDK_SOURCE_KEYBOARD) {
keyboard = event_device;
pointer = gdk_device_get_associated_device (event_device);
} else {
keyboard = gdk_device_get_associated_device (event_device);
pointer = event_device;
}
if (pointer != NULL) {
grab_status = gdk_device_grab (
pointer,
window,
GDK_OWNERSHIP_NONE,
TRUE,
GDK_ENTER_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK,
NULL,
event_time);
if (grab_status != GDK_GRAB_SUCCESS)
return FALSE;
ecc->grabbed_pointer = g_object_ref (pointer);
}
gtk_grab_add (ecc->popup_window);
if (keyboard != NULL) {
grab_status = gdk_device_grab (
keyboard,
window,
GDK_OWNERSHIP_NONE,
TRUE,
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK,
NULL,
event_time);
if (grab_status != GDK_GRAB_SUCCESS) {
if (ecc->grabbed_pointer != NULL) {
gdk_device_ungrab (
ecc->grabbed_pointer,
event_time);
g_object_unref (ecc->grabbed_pointer);
ecc->grabbed_pointer = NULL;
}
return FALSE;
}
ecc->grabbed_keyboard = g_object_ref (keyboard);
}
return TRUE;
}
static void
e_cell_combo_select_matching_item (ECellCombo *ecc)
{
ECellPopup *ecp = E_CELL_POPUP (ecc);
ECellView *ecv = (ECellView *) ecp->popup_cell_view;
ECellText *ecell_text = E_CELL_TEXT (ecp->child);
ETableItem *eti;
ETableCol *ecol;
gboolean found = FALSE;
gchar *cell_text;
gboolean valid;
GtkTreeSelection *selection;
GtkTreeIter iter;
GtkTreeModel *model;
eti = E_TABLE_ITEM (ecp->popup_cell_view->cell_view.e_table_item_view);
ecol = e_table_header_get_column (eti->header, ecp->popup_view_col);
cell_text = e_cell_text_get_text (
ecell_text, ecv->e_table_model,
ecol->spec->model_col, ecp->popup_row);
model = gtk_tree_view_get_model (GTK_TREE_VIEW (ecc->popup_tree_view));
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (ecc->popup_tree_view));
for (valid = gtk_tree_model_get_iter_first (model, &iter);
valid && !found;
valid = gtk_tree_model_iter_next (model, &iter)) {
gchar *str = NULL;
gtk_tree_model_get (model, &iter, 0, &str, -1);
if (str && g_str_equal (str, cell_text)) {
GtkTreePath *path;
path = gtk_tree_model_get_path (model, &iter);
gtk_tree_view_set_cursor (
GTK_TREE_VIEW (ecc->popup_tree_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
found = TRUE;
}
g_free (str);
}
if (!found)
gtk_tree_selection_unselect_all (selection);
e_cell_text_free_text (ecell_text, cell_text);
}
static void
e_cell_combo_show_popup (ECellCombo *ecc,
gint row,
gint view_col)
{
GdkWindow *window;
GtkAllocation allocation;
gint x, y, width, height, old_width, old_height;
gtk_widget_get_allocation (ecc->popup_window, &allocation);
/* This code is practically copied from GtkCombo. */
old_width = allocation.width;
old_height = allocation.height;
e_cell_combo_get_popup_pos (ecc, row, view_col, &x, &y, &height, &width);
/* workaround for gtk_scrolled_window_size_allocate bug */
if (old_width != width || old_height != height) {
gtk_widget_hide (
gtk_scrolled_window_get_hscrollbar (
GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
gtk_widget_hide (
gtk_scrolled_window_get_vscrollbar (
GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window)));
}
gtk_window_move (GTK_WINDOW (ecc->popup_window), x, y);
gtk_widget_set_size_request (ecc->popup_window, width, height);
gtk_widget_realize (ecc->popup_window);
window = gtk_widget_get_window (ecc->popup_window);
gdk_window_resize (window, width, height);
gtk_widget_show (ecc->popup_window);
e_cell_popup_set_shown (E_CELL_POPUP (ecc), TRUE);
d (g_print ("%s: popup_shown = TRUE\n", __FUNCTION__));
}
/* Calculates the size and position of the popup window (like GtkCombo). */
static void
e_cell_combo_get_popup_pos (ECellCombo *ecc,
gint row,
gint view_col,
gint *x,
gint *y,
gint *height,
gint *width)
{
ECellPopup *ecp = E_CELL_POPUP (ecc);
ETableItem *eti;
GtkWidget *canvas;
GtkWidget *widget;
GtkWidget *popwin_child;
GtkWidget *popup_child;
GtkStyle *popwin_style;
GtkStyle *popup_style;
GdkWindow *window;
GtkBin *popwin;
GtkScrolledWindow *popup;
GtkRequisition requisition;
GtkRequisition list_requisition;
gboolean show_vscroll = FALSE, show_hscroll = FALSE;
gint avail_height, avail_width, min_height, work_height, screen_width;
gint column_width, row_height, scrollbar_width;
gdouble x1, y1;
gdouble wx, wy;
eti = E_TABLE_ITEM (ecp->popup_cell_view->cell_view.e_table_item_view);
canvas = GTK_WIDGET (GNOME_CANVAS_ITEM (eti)->canvas);
/* This code is practically copied from GtkCombo. */
popup = GTK_SCROLLED_WINDOW (ecc->popup_scrolled_window);
popwin = GTK_BIN (ecc->popup_window);
window = gtk_widget_get_window (canvas);
gdk_window_get_origin (window, x, y);
x1 = e_table_header_col_diff (eti->header, 0, view_col + 1);
y1 = e_table_item_row_diff (eti, 0, row + 1);
column_width = e_table_header_col_diff (
eti->header, view_col, view_col + 1);
row_height = e_table_item_row_diff (eti, row, row + 1);
gnome_canvas_item_i2w (GNOME_CANVAS_ITEM (eti), &x1, &y1);
gnome_canvas_world_to_window (
GNOME_CANVAS (canvas), x1, y1, &wx, &wy);
x1 = wx;
y1 = wy;
*x += x1;
/* The ETable positions don't include the grid lines, I think, so we add 1. */
*y += y1 + 1 - (gint)
gtk_adjustment_get_value (
gtk_scrollable_get_vadjustment (
GTK_SCROLLABLE (&((GnomeCanvas *) canvas)->layout)))
+ ((GnomeCanvas *) canvas)->zoom_yofs;
widget = gtk_scrolled_window_get_vscrollbar (popup);
gtk_widget_get_preferred_size (widget, &requisition, NULL);
scrollbar_width =
requisition.width
+ GTK_SCROLLED_WINDOW_CLASS (G_OBJECT_GET_CLASS (popup))->scrollbar_spacing;
avail_height = gdk_screen_height () - *y;
/* We'll use the entire screen width if needed, but we save space for
* the vertical scrollbar in case we need to show that. */
screen_width = gdk_screen_width ();
avail_width = screen_width - scrollbar_width;
widget = gtk_scrolled_window_get_vscrollbar (popup);
gtk_widget_get_preferred_size (widget, &requisition, NULL);
gtk_widget_get_preferred_size (ecc->popup_tree_view, &list_requisition, NULL);
min_height = MIN (list_requisition.height, requisition.height);
if (!gtk_tree_model_iter_n_children (
gtk_tree_view_get_model (
GTK_TREE_VIEW (ecc->popup_tree_view)), NULL))
list_requisition.height += E_CELL_COMBO_LIST_EMPTY_HEIGHT;
popwin_child = gtk_bin_get_child (popwin);
popwin_style = gtk_widget_get_style (popwin_child);
popup_child = gtk_bin_get_child (GTK_BIN (popup));
popup_style = gtk_widget_get_style (popup_child);
/* Calculate the desired width. */
*width = list_requisition.width
+ 2 * popwin_style->xthickness
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popwin_child))
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popup))
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popup_child))
+ 2 * popup_style->xthickness;
/* Use at least the same width as the column. */
if (*width < column_width)
*width = column_width;
/* If it is larger than the available width, use that instead and show
* the horizontal scrollbar. */
if (*width > avail_width) {
*width = avail_width;
show_hscroll = TRUE;
}
/* Calculate all the borders etc. that we need to add to the height. */
work_height = (2 * popwin_style->ythickness
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popwin_child))
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popup))
+ 2 * gtk_container_get_border_width (GTK_CONTAINER (popup_child))
+ 2 * popup_style->xthickness);
widget = gtk_scrolled_window_get_hscrollbar (popup);
gtk_widget_get_preferred_size (widget, &requisition, NULL);
/* Add on the height of the horizontal scrollbar if we need it. */
if (show_hscroll)
work_height +=
requisition.height +
GTK_SCROLLED_WINDOW_GET_CLASS (popup)->scrollbar_spacing;
/* Check if it fits in the available height. */
if (work_height + list_requisition.height > avail_height) {
/* It doesn't fit, so we see if we have the minimum space
* needed. */
if (work_height + min_height > avail_height
&& *y - row_height > avail_height) {
/* We don't, so we show the popup above the cell
* instead of below it. */
avail_height = *y - row_height;
*y -= (work_height + list_requisition.height
+ row_height);
if (*y < 0)
*y = 0;
}
}
/* Check if we still need the vertical scrollbar. */
if (work_height + list_requisition.height > avail_height) {
*width += scrollbar_width;
show_vscroll = TRUE;
}
/* We try to line it up with the right edge of the column, but we don't
* want it to go off the edges of the screen. */
if (*x > screen_width)
*x = screen_width;
*x -= *width;
if (*x < 0)
*x = 0;
if (show_vscroll)
*height = avail_height;
else
*height = work_height + list_requisition.height;
}
static void
e_cell_combo_selection_changed (GtkTreeSelection *selection,
ECellCombo *ecc)
{
GtkTreeIter iter;
GtkTreeModel *model;
if (!gtk_widget_get_realized (ecc->popup_window) ||
!gtk_tree_selection_get_selected (selection, &model, &iter))
return;
e_cell_combo_update_cell (ecc);
e_cell_combo_restart_edit (ecc);
}
/* This handles button press events in the popup window.
* Note that since we have a pointer grab on this window, we also get button
* press events for windows outside the application here, so we hide the popup
* window if that happens. We also get propagated events from child widgets
* which we ignore. */
static gint
e_cell_combo_button_press (GtkWidget *popup_window,
GdkEvent *button_event,
ECellCombo *ecc)
{
GtkWidget *event_widget;
guint32 event_time;
event_time = gdk_event_get_time (button_event);
event_widget = gtk_get_event_widget (button_event);
/* If the button press was for a widget inside the popup list, but
* not the popup window itself, then we ignore the event and return
* FALSE. Otherwise we will hide the popup.
* Note that since we have a pointer grab on the popup list, button
* presses outside the application will be reported to this window,
* which is why we hide the popup in this case. */
while (event_widget) {
event_widget = gtk_widget_get_parent (event_widget);
if (event_widget == ecc->popup_tree_view)
return FALSE;
}
gtk_grab_remove (ecc->popup_window);
if (ecc->grabbed_keyboard != NULL) {
gdk_device_ungrab (ecc->grabbed_keyboard, event_time);
g_object_unref (ecc->grabbed_keyboard);
ecc->grabbed_keyboard = NULL;
}
if (ecc->grabbed_pointer != NULL) {
gdk_device_ungrab (ecc->grabbed_pointer, event_time);
g_object_unref (ecc->grabbed_pointer);
ecc->grabbed_pointer = NULL;
}
gtk_widget_hide (ecc->popup_window);
e_cell_popup_set_shown (E_CELL_POPUP (ecc), FALSE);
d (g_print ("%s: popup_shown = FALSE\n", __FUNCTION__));
/* We don't want to update the cell here. Since the list is in browse
* mode there will always be one item selected, so when we popup the
* list one item is selected even if it doesn't match the current text
* in the cell. So if you click outside the popup (which is what has
* happened here) it is better to not update the cell. */
/*e_cell_combo_update_cell (ecc);*/
e_cell_combo_restart_edit (ecc);
return TRUE;
}
/* This handles button release events in the popup window. If the button is
* released inside the list, we want to hide the popup window and update the
* cell with the new selection. */
static gint
e_cell_combo_button_release (GtkWidget *popup_window,
GdkEvent *button_event,
ECellCombo *ecc)
{
GtkWidget *event_widget;
guint32 event_time;
event_time = gdk_event_get_time (button_event);
event_widget = gtk_get_event_widget (button_event);
/* See if the button was released in the list (or its children). */
while (event_widget && event_widget != ecc->popup_tree_view)
event_widget = gtk_widget_get_parent (event_widget);
/* If it wasn't, then we just ignore the event. */
if (event_widget != ecc->popup_tree_view)
return FALSE;
/* The button was released inside the list, so we hide the popup and
* update the cell to reflect the new selection. */
gtk_grab_remove (ecc->popup_window);
if (ecc->grabbed_keyboard != NULL) {
gdk_device_ungrab (ecc->grabbed_keyboard, event_time);
g_object_unref (ecc->grabbed_keyboard);
ecc->grabbed_keyboard = NULL;
}
if (ecc->grabbed_pointer != NULL) {
gdk_device_ungrab (ecc->grabbed_pointer, event_time);
g_object_unref (ecc->grabbed_pointer);
ecc->grabbed_pointer = NULL;
}
gtk_widget_hide (ecc->popup_window);
e_cell_popup_set_shown (E_CELL_POPUP (ecc), FALSE);
d (g_print ("%s: popup_shown = FALSE\n", __FUNCTION__));
e_cell_combo_update_cell (ecc);
e_cell_combo_restart_edit (ecc);
return TRUE;
}
/* This handles key press events in the popup window. If the Escape key is
* pressed we hide the popup, and do not change the cell contents. */
static gint
e_cell_combo_key_press (GtkWidget *popup_window,
GdkEvent *key_event,
ECellCombo *ecc)
{
guint event_keyval = 0;
guint32 event_time;
gdk_event_get_keyval (key_event, &event_keyval);
event_time = gdk_event_get_time (key_event);
/* If the Escape key is pressed we hide the popup. */
if (event_keyval != GDK_KEY_Escape
&& event_keyval != GDK_KEY_Return
&& event_keyval != GDK_KEY_KP_Enter
&& event_keyval != GDK_KEY_ISO_Enter
&& event_keyval != GDK_KEY_3270_Enter)
return FALSE;
if (event_keyval == GDK_KEY_Escape &&
(!ecc->popup_window || !gtk_widget_get_visible (ecc->popup_window)))
return FALSE;
gtk_grab_remove (ecc->popup_window);
if (ecc->grabbed_keyboard != NULL) {
gdk_device_ungrab (ecc->grabbed_keyboard, event_time);
g_object_unref (ecc->grabbed_keyboard);
ecc->grabbed_keyboard = NULL;
}
if (ecc->grabbed_pointer != NULL) {
gdk_device_ungrab (ecc->grabbed_pointer, event_time);
g_object_unref (ecc->grabbed_pointer);
ecc->grabbed_pointer = NULL;
}
gtk_widget_hide (ecc->popup_window);
e_cell_popup_set_shown (E_CELL_POPUP (ecc), FALSE);
d (g_print ("%s: popup_shown = FALSE\n", __FUNCTION__));
if (event_keyval != GDK_KEY_Escape)
e_cell_combo_update_cell (ecc);
e_cell_combo_restart_edit (ecc);
return TRUE;
}
static void
e_cell_combo_update_cell (ECellCombo *ecc)
{
ECellPopup *ecp = E_CELL_POPUP (ecc);
ECellView *ecv = (ECellView *) ecp->popup_cell_view;
ECellText *ecell_text = E_CELL_TEXT (ecp->child);
ETableItem *eti = E_TABLE_ITEM (ecv->e_table_item_view);
ETableCol *ecol;
GtkTreeSelection *selection = gtk_tree_view_get_selection (
GTK_TREE_VIEW (ecc->popup_tree_view));
GtkTreeModel *model;
GtkTreeIter iter;
gchar *text = NULL, *old_text;
/* Return if no item is selected. */
if (!gtk_tree_selection_get_selected (selection, &model, &iter))
return;
/* Get the text of the selected item. */
gtk_tree_model_get (model, &iter, 0, &text, -1);
g_return_if_fail (text != NULL);
/* Compare it with the existing cell contents. */
ecol = e_table_header_get_column (eti->header, ecp->popup_view_col);
old_text = e_cell_text_get_text (
ecell_text, ecv->e_table_model,
ecol->spec->model_col, ecp->popup_row);
/* If they are different, update the cell contents. */
if (old_text && strcmp (old_text, text)) {
e_cell_text_set_value (
ecell_text, ecv->e_table_model,
ecol->spec->model_col, ecp->popup_row, text);
}
e_cell_text_free_text (ecell_text, old_text);
g_free (text);
}
static void
e_cell_combo_restart_edit (ECellCombo *ecc)
{
/* This doesn't work. ETable stops the edit straight-away again. */
#if 0
ECellView *ecv = (ECellView *) ecc->popup_cell_view;
ETableItem *eti = E_TABLE_ITEM (ecv->e_table_item_view);
e_table_item_enter_edit (eti, ecc->popup_view_col, ecc->popup_row);
#endif
}
