62ddea304a
Add this CSS class both to the header bar itself, since it is what actually contains the window controls, and to MetaFrameHeader too, since it's what's directly attached to the window. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2740>
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
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* Copyright (C) 2022 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#include "config.h"
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#include "meta-frame-header.h"
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struct _MetaFrameHeader
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{
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GtkWidget parent_instance;
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};
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G_DEFINE_TYPE (MetaFrameHeader, meta_frame_header, GTK_TYPE_WIDGET)
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static void
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meta_frame_header_dispose (GObject *object)
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{
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GtkWidget *widget = GTK_WIDGET (object);
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GtkWidget *child;
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child = gtk_widget_get_first_child (widget);
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if (child)
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gtk_widget_unparent (child);
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G_OBJECT_CLASS (meta_frame_header_parent_class)->dispose (object);
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}
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static void
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meta_frame_header_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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*minimum_baseline = *natural_baseline = -1;
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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*minimum = *natural = 1;
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}
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else
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{
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GtkWidget *child;
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child = gtk_widget_get_first_child (widget);
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gtk_widget_measure (child,
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orientation, for_size,
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minimum, natural,
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minimum_baseline,
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natural_baseline);
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}
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}
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static void
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meta_frame_header_size_allocate (GtkWidget *widget,
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int width,
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int height,
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int baseline)
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{
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GtkWidget *child;
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int minimum;
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gboolean shrunk;
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GtkAllocation child_allocation;
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child = gtk_widget_get_first_child (widget);
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gtk_widget_measure (child,
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GTK_ORIENTATION_HORIZONTAL,
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height,
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&minimum, NULL, NULL, NULL);
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shrunk = width < minimum;
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child_allocation.x = shrunk ? width - minimum : 0;
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child_allocation.y = 0;
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child_allocation.width = shrunk ? minimum : width;
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child_allocation.height = height;
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gtk_widget_size_allocate (child, &child_allocation, baseline);
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}
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static void
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meta_frame_header_class_init (MetaFrameHeaderClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->dispose = meta_frame_header_dispose;
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widget_class->measure = meta_frame_header_measure;
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widget_class->size_allocate = meta_frame_header_size_allocate;
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}
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static void
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meta_frame_header_init (MetaFrameHeader *content)
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{
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GtkWidget *header_bar;
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header_bar = gtk_header_bar_new ();
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gtk_widget_add_css_class (header_bar, "titlebar");
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gtk_widget_add_css_class (header_bar, "default-decoration");
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gtk_widget_insert_before (header_bar, GTK_WIDGET (content), NULL);
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}
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GtkWidget *
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meta_frame_header_new (void)
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{
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return g_object_new (META_TYPE_FRAME_HEADER, NULL);
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}
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