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ac09ce11fd
Adding the 'default-decoration' CSS class to MetaFrameHeader after it is set as the headerbar makes it not account for the minimum size correctly sometimes. This is a bit racy though - if the window opens very quickly, it works as expected. Adding the CSS class before the widget is used guarantees it'll always report the correct size though, so do that. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2753>
130 lines
3.6 KiB
C
130 lines
3.6 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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gtk_widget_add_css_class (GTK_WIDGET (content), "default-decoration");
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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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