108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/* ide-surfaces-button.c
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*
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* Copyright 2018 Christian Hergert <unknown@domain.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "ide-surfaces-button"
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#include "config.h"
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#include <libide-core.h>
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#include "ide-surfaces-button.h"
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struct _IdeSurfacesButton
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{
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DzlMenuButton parent_instance;
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};
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G_DEFINE_FINAL_TYPE (IdeSurfacesButton, ide_surfaces_button, DZL_TYPE_MENU_BUTTON)
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static void
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ide_surfaces_button_items_changed_cb (IdeSurfacesButton *self,
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guint position,
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guint added,
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guint removed,
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GMenuModel *model)
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{
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gboolean visible = FALSE;
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guint n_items;
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guint count = 0;
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g_assert (IDE_IS_MAIN_THREAD ());
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g_assert (IDE_IS_SURFACES_BUTTON (self));
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g_assert (G_IS_MENU_MODEL (model));
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/* We either have multiple sections, or a single section with
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* possibly multiple children. Any of these means visible.
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*/
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n_items = g_menu_model_get_n_items (model);
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visible = n_items > 1;
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for (guint i = 0; !visible && i < n_items; i++)
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{
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g_autoptr(GMenuLinkIter) iter = g_menu_model_iterate_item_links (model, i);
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while (g_menu_link_iter_next (iter))
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{
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g_autoptr(GMenuModel) child = g_menu_link_iter_get_value (iter);
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count += g_menu_model_get_n_items (child);
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}
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visible = count > 1;
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}
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gtk_widget_set_visible (GTK_WIDGET (self), visible);
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}
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static void
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ide_surfaces_button_notify_model (IdeSurfacesButton *self,
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GParamSpec *pspec,
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gpointer user_data)
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{
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GMenuModel *model;
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g_assert (IDE_IS_MAIN_THREAD ());
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g_assert (IDE_IS_SURFACES_BUTTON (self));
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if ((model = dzl_menu_button_get_model (DZL_MENU_BUTTON (self))))
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{
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g_signal_connect_object (model,
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"items-changed",
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G_CALLBACK (ide_surfaces_button_items_changed_cb),
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self,
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G_CONNECT_SWAPPED);
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ide_surfaces_button_items_changed_cb (self, 0, 0, 0, model);
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}
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}
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static void
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ide_surfaces_button_class_init (IdeSurfacesButtonClass *klass)
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{
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}
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static void
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ide_surfaces_button_init (IdeSurfacesButton *self)
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{
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g_signal_connect (self,
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"notify::model",
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G_CALLBACK (ide_surfaces_button_notify_model),
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NULL);
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}
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