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Make GtkCellAreaBox remember what was the last focus cell so that when

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cycling focus from row to row for a horizontal area we can remember
where focus was the last time around.
This commit is contained in:
Tristan Van Berkom 2010-12-09 18:20:39 +09:00
parent 2f4e451075
commit 89b3700b78
1 changed files with 54 additions and 13 deletions
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67
gtk/gtkcellareabox.c
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@ -129,6 +129,9 @@ static void gtk_cell_area_box_layout_pack_end (GtkCellLayout
static void gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gint position);
static void gtk_cell_area_box_focus_changed (GtkCellArea *area,
GParamSpec *pspec,
GtkCellAreaBox *box);
/* CellInfo/CellGroup metadata handling and convenience functions */
@ -184,18 +187,24 @@ static GSList *get_allocated_cells (GtkCellAreaBox *box,
struct _GtkCellAreaBoxPrivate
{
GtkOrientation orientation;
GtkOrientation orientation;
GList *cells;
GArray *groups;
/* We hold on to the previously focused cell when navigating
* up and down in a horizontal box (or left and right on a vertical one)
* this way we always re-enter the last focused cell. */
GtkCellRenderer *last_focus_cell;
gulong focus_cell_id;
GSList *contexts;
GList *cells;
GArray *groups;
gint spacing;
GSList *contexts;
gint spacing;
/* We hold on to the rtl state from a widget we are requested for
* so that we can navigate focus correctly */
gboolean rtl;
gboolean rtl;
};
enum {
@ -236,6 +245,11 @@ gtk_cell_area_box_init (GtkCellAreaBox *box)
priv->contexts = NULL;
priv->spacing = 0;
priv->rtl = FALSE;
/* Watch whenever focus is given to a cell, even if it's not with keynav,
* this way we remember upon entry of the area where focus was last time around */
priv->focus_cell_id = g_signal_connect (box, "notify::focus-cell",
G_CALLBACK (gtk_cell_area_box_focus_changed), box);
}
static void
@ -895,6 +909,16 @@ get_allocated_cells (GtkCellAreaBox *box,
return g_slist_reverse (allocated_cells);
}
static void
gtk_cell_area_box_focus_changed (GtkCellArea *area,
GParamSpec *pspec,
GtkCellAreaBox *box)
{
if (gtk_cell_area_get_focus_cell (area))
box->priv->last_focus_cell = gtk_cell_area_get_focus_cell (area);
}
/*************************************************************
* GObjectClass *
*************************************************************/
@ -991,6 +1015,9 @@ gtk_cell_area_box_remove (GtkCellArea *area,
GtkCellAreaBoxPrivate *priv = box->priv;
GList *node;
if (priv->last_focus_cell == renderer)
priv->last_focus_cell = NULL;
node = g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find);
@ -1717,7 +1744,8 @@ gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
enum {
FOCUS_NONE,
FOCUS_PREV,
FOCUS_NEXT
FOCUS_NEXT,
FOCUS_LAST_CELL
};
static gboolean
@ -1751,26 +1779,39 @@ gtk_cell_area_box_focus (GtkCellArea *area,
cycle = priv->rtl ? FOCUS_NEXT : FOCUS_PREV;
break;
case GTK_DIR_UP:
if (priv->orientation == GTK_ORIENTATION_VERTICAL || !focus_cell)
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
cycle = FOCUS_PREV;
else if (!focus_cell)
cycle = FOCUS_LAST_CELL;
break;
case GTK_DIR_DOWN:
if (priv->orientation == GTK_ORIENTATION_VERTICAL || !focus_cell)
cycle = FOCUS_NEXT;
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
cycle = FOCUS_PREV;
else if (!focus_cell)
cycle = FOCUS_LAST_CELL;
break;
case GTK_DIR_LEFT:
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL || !focus_cell)
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
cycle = priv->rtl ? FOCUS_NEXT : FOCUS_PREV;
else if (!focus_cell)
cycle = FOCUS_LAST_CELL;
break;
case GTK_DIR_RIGHT:
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL || !focus_cell)
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
cycle = priv->rtl ? FOCUS_PREV : FOCUS_NEXT;
else if (!focus_cell)
cycle = FOCUS_LAST_CELL;
break;
default:
break;
}
if (cycle != FOCUS_NONE)
if (cycle == FOCUS_LAST_CELL)
{
gtk_cell_area_set_focus_cell (area, priv->last_focus_cell);
cycled_focus = TRUE;
}
else if (cycle != FOCUS_NONE)
{
gboolean found_cell = FALSE;
GList *list;