gridview: Add move keybindings
This commit is contained in:
Benjamin Otte
@@ -1452,6 +1452,262 @@ gtk_grid_view_activate_item (GtkWidget *widget,
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g_signal_emit (widget, signals[ACTIVATE], 0, pos);
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}
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static void
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gtk_grid_view_move_to (GtkGridView *self,
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guint pos,
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gboolean select,
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gboolean modify,
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gboolean extend)
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{
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Cell *cell;
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cell = gtk_list_item_manager_get_nth (self->item_manager, pos, NULL);
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if (cell == NULL)
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return;
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if (!cell->parent.widget)
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{
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GtkListItemTracker *tracker = gtk_list_item_tracker_new (self->item_manager);
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/* We need a tracker here to create the widget.
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* That needs to have happened or we can't grab it.
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* And we can't use a different tracker, because they manage important rows,
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* so we create a temporary one. */
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gtk_list_item_tracker_set_position (self->item_manager, tracker, pos, 0, 0);
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cell = gtk_list_item_manager_get_nth (self->item_manager, pos, NULL);
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g_assert (cell->parent.widget);
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if (!gtk_widget_grab_focus (cell->parent.widget))
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return; /* FIXME: What now? Can this even happen? */
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gtk_list_item_tracker_free (self->item_manager, tracker);
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}
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else
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{
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if (!gtk_widget_grab_focus (cell->parent.widget))
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return; /* FIXME: What now? Can this even happen? */
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}
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if (select)
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gtk_grid_view_select_item (self, pos, modify, extend);
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}
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static void
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gtk_grid_view_move_cursor (GtkWidget *widget,
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GVariant *args,
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gpointer unused)
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{
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GtkGridView *self = GTK_GRID_VIEW (widget);
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int amount;
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guint orientation;
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guint pos, n_items;
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gboolean select, modify, extend;
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g_variant_get (args, "(ubbbi)", &orientation, &select, &modify, &extend, &amount);
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if (self->orientation == orientation)
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amount *= self->n_columns;
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if (orientation == GTK_ORIENTATION_HORIZONTAL &&
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gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
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amount = -amount;
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pos = gtk_list_item_tracker_get_position (self->item_manager, self->focus);
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n_items = self->model ? g_list_model_get_n_items (self->model) : 0;
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if (pos >= n_items || /* no focused item */
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(amount < 0 && pos < -amount))
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return;
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if (amount > 0 && amount > n_items - pos)
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{
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/* pressing down with no item below the current item is more complicated
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* because we want to move to the last row if we're not there yet */
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if (pos / self->n_columns < (n_items - 1) / self->n_columns)
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amount = n_items - pos - 1;
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else
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return;
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}
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gtk_grid_view_move_to (self, pos + amount, select, modify, extend);
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}
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static void
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gtk_grid_view_move_cursor_to_start (GtkWidget *widget,
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GVariant *args,
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gpointer unused)
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{
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GtkGridView *self = GTK_GRID_VIEW (widget);
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gboolean select, modify, extend;
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if (self->model == NULL || g_list_model_get_n_items (self->model) == 0)
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return;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_grid_view_move_to (self, 0, select, modify, extend);
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}
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static void
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gtk_grid_view_move_cursor_to_end (GtkWidget *widget,
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GVariant *args,
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gpointer unused)
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{
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GtkGridView *self = GTK_GRID_VIEW (widget);
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gboolean select, modify, extend;
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guint n_items;
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if (self->model == NULL)
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return;
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n_items = g_list_model_get_n_items (self->model);
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if (n_items == 0)
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return;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_grid_view_move_to (self, n_items - 1, select, modify, extend);
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}
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static void
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gtk_grid_view_move_cursor_page_up (GtkWidget *widget,
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GVariant *args,
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gpointer unused)
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{
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GtkGridView *self = GTK_GRID_VIEW (widget);
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gboolean select, modify, extend;
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int offset, start, size, page_size;
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guint pos, new_pos;
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pos = gtk_list_item_tracker_get_position (self->item_manager, self->anchor);
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if (pos < self->n_columns) /* already on first row */
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return;
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if (!gtk_grid_view_get_size_at_position (self, pos, &start, &size))
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return;
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page_size = gtk_adjustment_get_page_size(self->adjustment[self->orientation]);
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if (!gtk_grid_view_get_cell_at_y (self,
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MAX (0, start + size - page_size),
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&new_pos,
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&offset,
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NULL))
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return;
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/* gtk_grid_view_get_cell_at_y() returns first column positions, we want to keep columns */
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new_pos += pos % self->n_columns;
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if (offset > 0)
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new_pos += self->n_columns;
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if (new_pos >= pos)
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new_pos = pos - self->n_columns;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_grid_view_move_to (self, new_pos, select, modify, extend);
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}
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static void
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gtk_grid_view_move_cursor_page_down (GtkWidget *widget,
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GVariant *args,
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gpointer unused)
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{
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GtkGridView *self = GTK_GRID_VIEW (widget);
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gboolean select, modify, extend;
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int start, page_size;
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guint pos, new_pos, n_items;
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pos = gtk_list_item_tracker_get_position (self->item_manager, self->anchor);
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n_items = g_list_model_get_n_items (self->model);
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if (n_items == 0 || pos / self->n_columns >= (n_items - 1) / self->n_columns)
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return;
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if (!gtk_grid_view_get_size_at_position (self, pos, &start, NULL))
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return;
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page_size = gtk_adjustment_get_page_size(self->adjustment[self->orientation]);
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if (gtk_grid_view_get_cell_at_y (self,
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start + page_size,
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&new_pos,
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NULL, NULL))
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{
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/* We want a fully visible row and we just checked for the row that covers the
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* pixels more than a page down */
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if (new_pos >= self->n_columns)
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new_pos -= self->n_columns;
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}
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else
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{
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/* scroll to last row if there's nothing in the place we checked */
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new_pos = (n_items - 1);
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new_pos -= new_pos % self->n_columns;
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}
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/* gtk_grid_view_get_cell_at_y() returns first column positions, we want to keep columns */
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new_pos += pos % self->n_columns;
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/* We want to scroll at least one row */
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if (new_pos <= pos)
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new_pos = pos + self->n_columns;
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/* And finally, we need to check we've not scrolled to a cell in the last row that isn't
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* covered because n_items is not a multiple of n_columns */
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if (new_pos >= n_items)
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new_pos = n_items - 1;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_grid_view_move_to (self, new_pos, select, modify, extend);
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}
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static void
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gtk_grid_view_add_custom_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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GtkBindingCallback callback)
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{
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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0,
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callback,
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g_variant_new ("(bbb)", TRUE, FALSE, FALSE),
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NULL, NULL);
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_CONTROL_MASK,
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callback,
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g_variant_new ("(bbb)", FALSE, FALSE, FALSE),
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NULL, NULL);
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_SHIFT_MASK,
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callback,
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g_variant_new ("(bbb)", TRUE, FALSE, TRUE),
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NULL, NULL);
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_CONTROL_MASK | GDK_SHIFT_MASK,
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callback,
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g_variant_new ("(bbb)", TRUE, TRUE, TRUE),
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NULL, NULL);
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}
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static void
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gtk_grid_view_add_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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GtkOrientation orientation,
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int amount)
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{
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_CONTROL_MASK,
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gtk_grid_view_move_cursor,
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g_variant_new ("(ubbbi)", orientation, FALSE, FALSE, FALSE, amount),
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NULL, NULL);
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_SHIFT_MASK,
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gtk_grid_view_move_cursor,
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g_variant_new ("(ubbbi)", orientation, TRUE, FALSE, TRUE, amount),
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NULL, NULL);
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gtk_binding_entry_add_callback (binding_set,
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keyval,
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GDK_CONTROL_MASK | GDK_SHIFT_MASK,
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gtk_grid_view_move_cursor,
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g_variant_new ("(ubbbi)", orientation, TRUE, TRUE, TRUE, amount),
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NULL, NULL);
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}
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static void
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gtk_grid_view_class_init (GtkGridViewClass *klass)
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{
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@@ -1646,6 +1902,24 @@ gtk_grid_view_class_init (GtkGridViewClass *klass)
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binding_set = gtk_binding_set_by_class (klass);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_Up, GTK_ORIENTATION_VERTICAL, -1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_KP_Up, GTK_ORIENTATION_VERTICAL, -1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_Down, GTK_ORIENTATION_VERTICAL, 1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_KP_Down, GTK_ORIENTATION_VERTICAL, 1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_Left, GTK_ORIENTATION_HORIZONTAL, -1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_KP_Left, GTK_ORIENTATION_HORIZONTAL, -1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_Right, GTK_ORIENTATION_HORIZONTAL, 1);
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gtk_grid_view_add_move_binding (binding_set, GDK_KEY_KP_Right, GTK_ORIENTATION_HORIZONTAL, 1);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_Home, gtk_grid_view_move_cursor_to_start);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_KP_Home, gtk_grid_view_move_cursor_to_start);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_End, gtk_grid_view_move_cursor_to_end);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_KP_End, gtk_grid_view_move_cursor_to_end);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_Page_Up, gtk_grid_view_move_cursor_page_up);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_KP_Page_Up, gtk_grid_view_move_cursor_page_up);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_Page_Down, gtk_grid_view_move_cursor_page_down);
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gtk_grid_view_add_custom_move_binding (binding_set, GDK_KEY_KP_Page_Down, gtk_grid_view_move_cursor_page_down);
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gtk_binding_entry_add_action (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "list.select-all", NULL);
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gtk_binding_entry_add_action (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "list.select-all", NULL);
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