forked from AuroraMiddleware/gtk
listview: Add move keybindings
My god, these are a lot. And my god, these are complicated to get right.
This commit is contained in:
Benjamin Otte
Matthias Clasen
parent
2b9481ecdc
commit
042e13a932
@ -1071,6 +1071,264 @@ gtk_list_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_list_view_move_to (GtkListView *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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ListRow *row;
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row = gtk_list_item_manager_get_nth (self->item_manager, pos, NULL);
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if (row == NULL)
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return;
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if (!row->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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row = gtk_list_item_manager_get_nth (self->item_manager, pos, NULL);
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g_assert (row->parent.widget);
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if (!gtk_widget_grab_focus (row->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 (row->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_list_view_select_item (self, pos, modify, extend);
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}
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static gboolean
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gtk_list_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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GtkListView *self = GTK_LIST_VIEW (widget);
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int amount;
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guint orientation;
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guint pos, new_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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return TRUE;
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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)
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return TRUE;
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new_pos = pos + amount;
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/* This overflow check only works reliably for amount == 1 */
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if (new_pos >= n_items)
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return TRUE;
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gtk_list_view_move_to (self, new_pos, select, modify, extend);
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return TRUE;
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}
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static gboolean
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gtk_list_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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GtkListView *self = GTK_LIST_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 TRUE;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_list_view_move_to (self, 0, select, modify, extend);
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return TRUE;
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}
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static gboolean
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gtk_list_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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GtkListView *self = GTK_LIST_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 TRUE;
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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 TRUE;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_list_view_move_to (self, n_items - 1, select, modify, extend);
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return TRUE;
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}
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static gboolean
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gtk_list_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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GtkListView *self = GTK_LIST_VIEW (widget);
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gboolean select, modify, extend;
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guint start, pos, n_items;
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ListRow *row;
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int pixels, offset;
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start = gtk_list_item_tracker_get_position (self->item_manager, self->focus);
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row = gtk_list_item_manager_get_nth (self->item_manager, start, NULL);
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if (row == NULL)
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return TRUE;
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n_items = self->model ? g_list_model_get_n_items (self->model) : 0;
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/* check that we can go at least one row up */
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if (n_items == 0 || start == 0)
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return TRUE;
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if (self->orientation == GTK_ORIENTATION_HORIZONTAL)
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pixels = gtk_widget_get_width (widget);
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else
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pixels = gtk_widget_get_height (widget);
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pixels -= row->height;
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pos = gtk_list_view_get_position_at_y (self,
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MAX (0, list_row_get_y (self, row) - pixels),
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&offset,
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NULL);
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/* there'll always be rows between 0 and this row */
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g_assert (pos < n_items);
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/* if row is too high, go one row less */
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if (offset > 0)
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pos++;
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/* but go at least 1 row */
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if (pos >= start)
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pos = start - 1;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_list_view_move_to (self, pos, select, modify, extend);
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return TRUE;
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}
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static gboolean
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gtk_list_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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GtkListView *self = GTK_LIST_VIEW (widget);
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gboolean select, modify, extend;
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guint start, pos, n_items;
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ListRow *row;
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int pixels, offset;
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start = gtk_list_item_tracker_get_position (self->item_manager, self->focus);
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row = gtk_list_item_manager_get_nth (self->item_manager, start, NULL);
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if (row == NULL)
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return TRUE;
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n_items = self->model ? g_list_model_get_n_items (self->model) : 0;
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/* check that we can go at least one row down */
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if (n_items == 0 || start >= n_items - 1)
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return TRUE;
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if (self->orientation == GTK_ORIENTATION_HORIZONTAL)
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pixels = gtk_widget_get_width (widget);
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else
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pixels = gtk_widget_get_height (widget);
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pos = gtk_list_view_get_position_at_y (self,
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list_row_get_y (self, row) + pixels,
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&offset,
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NULL);
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if (pos >= n_items)
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pos = n_items - 1;
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/* if row is too high, go one row less */
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else if (pos > 0 && offset > 0)
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pos--;
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/* but go at least 1 row */
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if (pos <= start)
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pos = start + 1;
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g_variant_get (args, "(bbb)", &select, &modify, &extend);
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gtk_list_view_move_to (self, pos, select, modify, extend);
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return TRUE;
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}
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static void
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gtk_list_view_add_custom_move_binding (GtkWidgetClass *widget_class,
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guint keyval,
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GtkShortcutFunc callback)
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{
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gtk_widget_class_add_binding (widget_class,
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keyval,
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0,
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callback,
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"(bbb)", TRUE, FALSE, FALSE);
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gtk_widget_class_add_binding (widget_class,
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keyval,
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GDK_CONTROL_MASK,
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callback,
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"(bbb)", FALSE, FALSE, FALSE);
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gtk_widget_class_add_binding (widget_class,
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keyval,
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GDK_SHIFT_MASK,
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callback,
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"(bbb)", TRUE, FALSE, TRUE);
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gtk_widget_class_add_binding (widget_class,
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keyval,
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GDK_CONTROL_MASK | GDK_SHIFT_MASK,
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callback,
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"(bbb)", TRUE, TRUE, TRUE);
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}
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static void
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gtk_list_view_add_move_binding (GtkWidgetClass *widget_class,
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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_widget_class_add_binding (widget_class,
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keyval,
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GDK_CONTROL_MASK,
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gtk_list_view_move_cursor,
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"(ubbbi)", orientation, FALSE, FALSE, FALSE, amount);
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gtk_widget_class_add_binding (widget_class,
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keyval,
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GDK_SHIFT_MASK,
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gtk_list_view_move_cursor,
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"(ubbbi)", orientation, TRUE, FALSE, TRUE, amount);
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gtk_widget_class_add_binding (widget_class,
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keyval,
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GDK_CONTROL_MASK | GDK_SHIFT_MASK,
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gtk_list_view_move_cursor,
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"(ubbbi)", orientation, TRUE, TRUE, TRUE, amount);
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}
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static void
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gtk_list_view_class_init (GtkListViewClass *klass)
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{
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@ -1247,6 +1505,24 @@ gtk_list_view_class_init (GtkListViewClass *klass)
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"u",
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gtk_list_view_scroll_to_item);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_Up, GTK_ORIENTATION_VERTICAL, -1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_KP_Up, GTK_ORIENTATION_VERTICAL, -1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_Down, GTK_ORIENTATION_VERTICAL, 1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_KP_Down, GTK_ORIENTATION_VERTICAL, 1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_Left, GTK_ORIENTATION_HORIZONTAL, -1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_KP_Left, GTK_ORIENTATION_HORIZONTAL, -1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_Right, GTK_ORIENTATION_HORIZONTAL, 1);
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gtk_list_view_add_move_binding (widget_class, GDK_KEY_KP_Right, GTK_ORIENTATION_HORIZONTAL, 1);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_Home, gtk_list_view_move_cursor_to_start);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_KP_Home, gtk_list_view_move_cursor_to_start);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_End, gtk_list_view_move_cursor_to_end);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_KP_End, gtk_list_view_move_cursor_to_end);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_Page_Up, gtk_list_view_move_cursor_page_up);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_KP_Page_Up, gtk_list_view_move_cursor_page_up);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_Page_Down, gtk_list_view_move_cursor_page_down);
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gtk_list_view_add_custom_move_binding (widget_class, GDK_KEY_KP_Page_Down, gtk_list_view_move_cursor_page_down);
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gtk_widget_class_add_binding_action (widget_class, GDK_KEY_a, GDK_CONTROL_MASK, "list.select-all", NULL);
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gtk_widget_class_add_binding_action (widget_class, GDK_KEY_slash, GDK_CONTROL_MASK, "list.select-all", NULL);
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