joinedmenu: add helper to join menus instead of nesting

In many cases, we have an "extra-menu" property that is used to allow
applications to join menus into the native menu for the widget. Previously,
this was done by nesting that menu in a section.

Doing so increases the complexity of the rules for GtkMenuTracker as you
may want different handling from inside of the section vs toplevel
sections.

If instead we synthetically glue the menus together, we have a much more
natural joining of menus as the application developer would expect for
their menu.

This also ports GtkLabel, GtkText, GtkPasswordEntry, and GtkTextView to
use the joined menu helper.

The joined menu helper comes originally from GNOME Builder and has had
extensive use there.

Fixes #4094
This commit is contained in:
Christian Hergert 2021-07-08 14:16:06 -07:00
parent 6818eee859
commit d63d9b2319
7 changed files with 396 additions and 14 deletions

315
gtk/gtkjoinedmenu.c Normal file
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@ -0,0 +1,315 @@
/*
* Copyright © 2020 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include "gtkjoinedmenuprivate.h"
typedef struct
{
GMenuModel *model;
gulong items_changed_handler;
} Menu;
struct _GtkJoinedMenu
{
GMenuModel parent_instance;
GArray *menus;
};
G_DEFINE_TYPE (GtkJoinedMenu, gtk_joined_menu, G_TYPE_MENU_MODEL)
static void
clear_menu (gpointer data)
{
Menu *menu = data;
g_clear_signal_handler (&menu->items_changed_handler, menu->model);
g_clear_object (&menu->model);
}
static gint
gtk_joined_menu_get_offset_at_index (GtkJoinedMenu *self,
gint index)
{
gint offset = 0;
for (guint i = 0; i < index; i++)
offset += g_menu_model_get_n_items (g_array_index (self->menus, Menu, i).model);
return offset;
}
static gint
gtk_joined_menu_get_offset_at_model (GtkJoinedMenu *self,
GMenuModel *model)
{
gint offset = 0;
for (guint i = 0; i < self->menus->len; i++)
{
const Menu *menu = &g_array_index (self->menus, Menu, i);
if (menu->model == model)
break;
offset += g_menu_model_get_n_items (menu->model);
}
return offset;
}
static gboolean
gtk_joined_menu_is_mutable (GMenuModel *model)
{
return TRUE;
}
static gint
gtk_joined_menu_get_n_items (GMenuModel *model)
{
GtkJoinedMenu *self = (GtkJoinedMenu *)model;
if (self->menus->len == 0)
return 0;
return gtk_joined_menu_get_offset_at_index (self, self->menus->len);
}
static const Menu *
gtk_joined_menu_get_item (GtkJoinedMenu *self,
gint *item_index)
{
g_assert (GTK_IS_JOINED_MENU (self));
for (guint i = 0; i < self->menus->len; i++)
{
const Menu *menu = &g_array_index (self->menus, Menu, i);
gint n_items = g_menu_model_get_n_items (menu->model);
if (n_items > *item_index)
return menu;
(*item_index) -= n_items;
}
g_return_val_if_reached (NULL);
}
static void
gtk_joined_menu_get_item_attributes (GMenuModel *model,
gint item_index,
GHashTable **attributes)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
G_MENU_MODEL_GET_CLASS (menu->model)->get_item_attributes (menu->model, item_index, attributes);
}
static GMenuAttributeIter *
gtk_joined_menu_iterate_item_attributes (GMenuModel *model,
gint item_index)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
return G_MENU_MODEL_GET_CLASS (menu->model)->iterate_item_attributes (menu->model, item_index);
}
static GVariant *
gtk_joined_menu_get_item_attribute_value (GMenuModel *model,
gint item_index,
const gchar *attribute,
const GVariantType *expected_type)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
return G_MENU_MODEL_GET_CLASS (menu->model)->get_item_attribute_value (menu->model, item_index, attribute, expected_type);
}
static void
gtk_joined_menu_get_item_links (GMenuModel *model,
gint item_index,
GHashTable **links)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
G_MENU_MODEL_GET_CLASS (menu->model)->get_item_links (menu->model, item_index, links);
}
static GMenuLinkIter *
gtk_joined_menu_iterate_item_links (GMenuModel *model,
gint item_index)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
return G_MENU_MODEL_GET_CLASS (menu->model)->iterate_item_links (menu->model, item_index);
}
static GMenuModel *
gtk_joined_menu_get_item_link (GMenuModel *model,
gint item_index,
const gchar *link)
{
const Menu *menu = gtk_joined_menu_get_item (GTK_JOINED_MENU (model), &item_index);
return G_MENU_MODEL_GET_CLASS (menu->model)->get_item_link (menu->model, item_index, link);
}
static void
gtk_joined_menu_finalize (GObject *object)
{
GtkJoinedMenu *self = (GtkJoinedMenu *)object;
g_clear_pointer (&self->menus, g_array_unref);
G_OBJECT_CLASS (gtk_joined_menu_parent_class)->finalize (object);
}
static void
gtk_joined_menu_class_init (GtkJoinedMenuClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GMenuModelClass *menu_model_class = G_MENU_MODEL_CLASS (klass);
object_class->finalize = gtk_joined_menu_finalize;
menu_model_class->is_mutable = gtk_joined_menu_is_mutable;
menu_model_class->get_n_items = gtk_joined_menu_get_n_items;
menu_model_class->get_item_attributes = gtk_joined_menu_get_item_attributes;
menu_model_class->iterate_item_attributes = gtk_joined_menu_iterate_item_attributes;
menu_model_class->get_item_attribute_value = gtk_joined_menu_get_item_attribute_value;
menu_model_class->get_item_links = gtk_joined_menu_get_item_links;
menu_model_class->iterate_item_links = gtk_joined_menu_iterate_item_links;
menu_model_class->get_item_link = gtk_joined_menu_get_item_link;
}
static void
gtk_joined_menu_init (GtkJoinedMenu *self)
{
self->menus = g_array_new (FALSE, FALSE, sizeof (Menu));
g_array_set_clear_func (self->menus, clear_menu);
}
static void
gtk_joined_menu_on_items_changed (GtkJoinedMenu *self,
guint offset,
guint removed,
guint added,
GMenuModel *model)
{
g_assert (GTK_IS_JOINED_MENU (self));
g_assert (G_IS_MENU_MODEL (model));
offset += gtk_joined_menu_get_offset_at_model (self, model);
g_menu_model_items_changed (G_MENU_MODEL (self), offset, removed, added);
}
GtkJoinedMenu *
gtk_joined_menu_new (void)
{
return g_object_new (GTK_TYPE_JOINED_MENU, NULL);
}
static void
gtk_joined_menu_insert (GtkJoinedMenu *self,
GMenuModel *model,
gint index)
{
Menu menu = { 0 };
gint offset;
gint n_items;
g_assert (GTK_IS_JOINED_MENU (self));
g_assert (G_IS_MENU_MODEL (model));
g_assert (index >= 0);
g_assert (index <= self->menus->len);
menu.model = g_object_ref (model);
menu.items_changed_handler =
g_signal_connect_swapped (menu.model,
"items-changed",
G_CALLBACK (gtk_joined_menu_on_items_changed),
self);
g_array_insert_val (self->menus, index, menu);
n_items = g_menu_model_get_n_items (model);
offset = gtk_joined_menu_get_offset_at_index (self, index);
g_menu_model_items_changed (G_MENU_MODEL (self), offset, 0, n_items);
}
void
gtk_joined_menu_append_menu (GtkJoinedMenu *self,
GMenuModel *model)
{
g_return_if_fail (GTK_IS_JOINED_MENU (self));
g_return_if_fail (G_MENU_MODEL (model));
gtk_joined_menu_insert (self, model, self->menus->len);
}
void
gtk_joined_menu_prepend_menu (GtkJoinedMenu *self,
GMenuModel *model)
{
g_return_if_fail (GTK_IS_JOINED_MENU (self));
g_return_if_fail (G_MENU_MODEL (model));
gtk_joined_menu_insert (self, model, 0);
}
void
gtk_joined_menu_remove_index (GtkJoinedMenu *self,
guint index)
{
const Menu *menu;
gint n_items;
gint offset;
g_return_if_fail (GTK_IS_JOINED_MENU (self));
g_return_if_fail (index < self->menus->len);
menu = &g_array_index (self->menus, Menu, index);
offset = gtk_joined_menu_get_offset_at_index (self, index);
n_items = g_menu_model_get_n_items (menu->model);
g_array_remove_index (self->menus, index);
g_menu_model_items_changed (G_MENU_MODEL (self), offset, n_items, 0);
}
void
gtk_joined_menu_remove_menu (GtkJoinedMenu *self,
GMenuModel *model)
{
g_return_if_fail (GTK_IS_JOINED_MENU (self));
g_return_if_fail (G_IS_MENU_MODEL (model));
for (guint i = 0; i < self->menus->len; i++)
{
if (g_array_index (self->menus, Menu, i).model == model)
{
gtk_joined_menu_remove_index (self, i);
break;
}
}
}
guint
gtk_joined_menu_get_n_joined (GtkJoinedMenu *self)
{
g_return_val_if_fail (GTK_IS_JOINED_MENU (self), 0);
return self->menus->len;
}

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@ -0,0 +1,41 @@
/*
* Copyright © 2020 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#pragma once
#include <gio/gio.h>
G_BEGIN_DECLS
#define GTK_TYPE_JOINED_MENU (gtk_joined_menu_get_type())
G_DECLARE_FINAL_TYPE (GtkJoinedMenu, gtk_joined_menu, GTK, JOINED_MENU, GMenuModel)
GtkJoinedMenu *gtk_joined_menu_new (void);
guint gtk_joined_menu_get_n_joined (GtkJoinedMenu *self);
void gtk_joined_menu_append_menu (GtkJoinedMenu *self,
GMenuModel *model);
void gtk_joined_menu_prepend_menu (GtkJoinedMenu *self,
GMenuModel *model);
void gtk_joined_menu_remove_menu (GtkJoinedMenu *self,
GMenuModel *model);
void gtk_joined_menu_remove_index (GtkJoinedMenu *self,
guint index);
G_END_DECLS

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@ -52,6 +52,7 @@
#include "gtkdragsourceprivate.h"
#include "gtkdragicon.h"
#include "gtkcsscolorvalueprivate.h"
#include "gtkjoinedmenuprivate.h"
#include <math.h>
#include <string.h>
@ -5468,9 +5469,11 @@ gtk_label_move_cursor (GtkLabel *self,
static GMenuModel *
gtk_label_get_menu_model (GtkLabel *self)
{
GtkJoinedMenu *joined;
GMenu *menu, *section;
GMenuItem *item;
joined = gtk_joined_menu_new ();
menu = g_menu_new ();
section = g_menu_new ();
@ -5498,10 +5501,13 @@ gtk_label_get_menu_model (GtkLabel *self)
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
if (self->extra_menu)
g_menu_append_section (menu, NULL, self->extra_menu);
gtk_joined_menu_append_menu (joined, G_MENU_MODEL (menu));
g_object_unref (menu);
return G_MENU_MODEL (menu);
if (self->extra_menu)
gtk_joined_menu_append_menu (joined, self->extra_menu);
return G_MENU_MODEL (joined);
}
static void

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@ -36,6 +36,7 @@
#include "gtkwidgetprivate.h"
#include "gtkcsspositionvalueprivate.h"
#include "gtkcssnodeprivate.h"
#include "gtkjoinedmenuprivate.h"
/**
@ -658,6 +659,7 @@ void
gtk_password_entry_set_extra_menu (GtkPasswordEntry *entry,
GMenuModel *model)
{
GtkJoinedMenu *joined;
GMenu *menu;
GMenu *section;
GMenuItem *item;
@ -671,6 +673,7 @@ gtk_password_entry_set_extra_menu (GtkPasswordEntry *entry,
return;
}
joined = gtk_joined_menu_new ();
menu = g_menu_new ();
section = g_menu_new ();
@ -682,13 +685,16 @@ gtk_password_entry_set_extra_menu (GtkPasswordEntry *entry,
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
if (model)
g_menu_append_section (menu, NULL, model);
gtk_text_set_extra_menu (GTK_TEXT (entry->entry), G_MENU_MODEL (menu));
gtk_joined_menu_append_menu (joined, G_MENU_MODEL (menu));
g_object_unref (menu);
if (model)
gtk_joined_menu_append_menu (joined, model);
gtk_text_set_extra_menu (GTK_TEXT (entry->entry), G_MENU_MODEL (joined));
g_object_unref (joined);
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_EXTRA_MENU]);
}

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@ -64,6 +64,7 @@
#include "gtkwindow.h"
#include "gtknative.h"
#include "gtkactionmuxerprivate.h"
#include "gtkjoinedmenuprivate.h"
#include <cairo-gobject.h>
#include <string.h>
@ -6035,9 +6036,11 @@ static GMenuModel *
gtk_text_get_menu_model (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkJoinedMenu *joined;
GMenu *menu, *section;
GMenuItem *item;
joined = gtk_joined_menu_new ();
menu = g_menu_new ();
section = g_menu_new ();
@ -6075,10 +6078,13 @@ gtk_text_get_menu_model (GtkText *self)
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
if (priv->extra_menu)
g_menu_append_section (menu, NULL, priv->extra_menu);
gtk_joined_menu_append_menu (joined, G_MENU_MODEL (menu));
g_object_unref (menu);
return G_MENU_MODEL (menu);
if (priv->extra_menu)
gtk_joined_menu_append_menu (joined, priv->extra_menu);
return G_MENU_MODEL (joined);
}
static gboolean

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@ -56,6 +56,7 @@
#include "gtkpango.h"
#include "gtknative.h"
#include "gtkwidgetprivate.h"
#include "gtkjoinedmenuprivate.h"
/**
* GtkTextView:
@ -8733,9 +8734,12 @@ static GMenuModel *
gtk_text_view_get_menu_model (GtkTextView *text_view)
{
GtkTextViewPrivate *priv = text_view->priv;
GtkJoinedMenu *joined;
GMenu *menu, *section;
GMenuItem *item;
joined = gtk_joined_menu_new ();
menu = g_menu_new ();
section = g_menu_new ();
@ -8785,10 +8789,13 @@ gtk_text_view_get_menu_model (GtkTextView *text_view)
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
if (priv->extra_menu)
g_menu_append_section (menu, NULL, priv->extra_menu);
gtk_joined_menu_append_menu (joined, G_MENU_MODEL (menu));
g_object_unref (menu);
return G_MENU_MODEL (menu);
if (priv->extra_menu)
gtk_joined_menu_append_menu (joined, priv->extra_menu);
return G_MENU_MODEL (joined);
}
static void

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@ -114,6 +114,7 @@ gtk_private_sources = files([
'gtkiconcache.c',
'gtkiconcachevalidator.c',
'gtkiconhelper.c',
'gtkjoinedmenu.c',
'gtkkineticscrolling.c',
'gtkmagnifier.c',
'gtkmenusectionbox.c',