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list box: Make focusable headers possible

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Previously we were assuming that only list box rows could occur
as focus children of a list box, and would crash if that wasn't
the case. This commit handles this case, and integrates focusable
headers into directional keynav and the focus chain.

The typical case of using separators as headers is not affected
by this change.

https://bugzilla.gnome.org/show_bug.cgi?id=753694
This commit is contained in:
Matthias Clasen 2015-08-21 20:51:03 -04:00
parent bff28ac6b0
commit 1d2ff9a069
1 changed files with 39 additions and 3 deletions
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42
gtk/gtklistbox.c
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@ -1939,8 +1939,11 @@ gtk_list_box_focus (GtkWidget *widget,
GtkListBoxPrivate *priv = BOX_PRIV (box);
GtkWidget *focus_child;
GtkListBoxRow *next_focus_row;
GtkWidget *row;
GtkWidget *header;
focus_child = gtk_container_get_focus_child ((GtkContainer *)box);
next_focus_row = NULL;
if (focus_child != NULL)
{
@ -1951,7 +1954,23 @@ gtk_list_box_focus (GtkWidget *widget,
if (direction == GTK_DIR_UP || direction == GTK_DIR_TAB_BACKWARD)
{
i = gtk_list_box_get_previous_visible (box, ROW_PRIV (GTK_LIST_BOX_ROW (focus_child))->iter);
if (GTK_IS_LIST_BOX_ROW (focus_child))
{
header = ROW_PRIV (GTK_LIST_BOX_ROW (focus_child))->header;
if (header && gtk_widget_child_focus (header, direction))
return TRUE;
}
if (GTK_IS_LIST_BOX_ROW (focus_child))
row = focus_child;
else
row = g_hash_table_lookup (priv->header_hash, focus_child);
if (GTK_IS_LIST_BOX_ROW (row))
i = gtk_list_box_get_previous_visible (box, ROW_PRIV (GTK_LIST_BOX_ROW (row))->iter);
else
i = NULL;
while (i != NULL)
{
if (gtk_widget_get_sensitive (g_sequence_get (i)))
@ -1965,7 +1984,17 @@ gtk_list_box_focus (GtkWidget *widget,
}
else if (direction == GTK_DIR_DOWN || direction == GTK_DIR_TAB_FORWARD)
{
i = gtk_list_box_get_next_visible (box, ROW_PRIV (GTK_LIST_BOX_ROW (focus_child))->iter);
if (GTK_IS_LIST_BOX_ROW (focus_child))
i = gtk_list_box_get_next_visible (box, ROW_PRIV (GTK_LIST_BOX_ROW (focus_child))->iter);
else
{
row = g_hash_table_lookup (priv->header_hash, focus_child);
if (GTK_IS_LIST_BOX_ROW (row))
i = ROW_PRIV (GTK_LIST_BOX_ROW (row))->iter;
else
i = NULL;
}
while (!g_sequence_iter_is_end (i))
{
if (gtk_widget_get_sensitive (g_sequence_get (i)))
@ -2008,10 +2037,17 @@ gtk_list_box_focus (GtkWidget *widget,
return FALSE;
}
if (direction == GTK_DIR_DOWN || direction == GTK_DIR_TAB_FORWARD)
{
header = ROW_PRIV (next_focus_row)->header;
if (header && gtk_widget_child_focus (header, direction))
return TRUE;
}
if (gtk_widget_child_focus (GTK_WIDGET (next_focus_row), direction))
return TRUE;
return TRUE;
return FALSE;
}
static gboolean