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gtk2/gtk/gtkmodelbutton.c
Matthias Clasen b55195fa2e Move the idle sizer to GtkWindow 
This was only living in gtkcontainer.c for historic
reasons. Move it closer to where it belongs, and
rename it from 'idle' to 'layout', since it is
really about the layout phase of the frame clock,
nowadays.
2020-04-20 16:30:45 -04:00

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/*
* Copyright © 2014 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 of the licence, 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/>.
*
* Author: Matthias Clasen
*/
#include "config.h"
#include "gtkmodelbuttonprivate.h"
#include "gtkactionhelperprivate.h"
#include "gtkboxlayout.h"
#include "gtkgestureclick.h"
#include "gtkwidgetprivate.h"
#include "gtkmenutrackeritemprivate.h"
#include "gtkimage.h"
#include "gtklabel.h"
#include "gtkbox.h"
#include "gtkstylecontext.h"
#include "gtktypebuiltins.h"
#include "gtkstack.h"
#include "gtkpopovermenuprivate.h"
#include "gtkintl.h"
#include "gtkcssnodeprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkstylecontextprivate.h"
#include "gtkbuiltiniconprivate.h"
#include "gtksizegroup.h"
#include "gtkaccellabelprivate.h"
#include "gtkactionable.h"
#include "gtkeventcontrollermotion.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollerfocus.h"
#include "gtknative.h"
#include "gtkshortcuttrigger.h"
#include "gtkshortcutcontroller.h"
#include "gtkshortcut.h"
/**
* SECTION:gtkmodelbutton
* @Short_description: A button that uses a GAction as model
* @Title: GtkModelButton
*
* GtkModelButton is a button class that can use a #GAction as its model.
* In contrast to #GtkToggleButton or #GtkRadioButton, which can also
* be backed by a #GAction via the #GtkActionable:action-name property,
* GtkModelButton will adapt its appearance according to the kind of
* action it is backed by, and appear either as a plain, check or
* radio button.
*
* Model buttons are used when popovers from a menu model with
* gtk_popover_menu_new_from_model(); they can also be used manually in
* a #GtkPopoverMenu.
*
* When the action is specified via the #GtkActionable:action-name
* and #GtkActionable:action-target properties, the role of the button
* (i.e. whether it is a plain, check or radio button) is determined by
* the type of the action and doesn't have to be explicitly specified
* with the #GtkModelButton:role property.
*
* The content of the button is specified by the #GtkModelButton:text
* and #GtkModelButton:icon properties.
*
* The appearance of model buttons can be influenced with the
* #GtkModelButton:centered and #GtkModelButton:iconic properties.
*
* Model buttons have built-in support for submenus in #GtkPopoverMenu.
* To make a GtkModelButton that opens a submenu when activated, set
* the #GtkModelButton:menu-name property. To make a button that goes
* back to the parent menu, you should set the #GtkModelButton:inverted
* property to place the submenu indicator at the opposite side.
*
* # Example
*
* |[
* <object class="GtkPopoverMenu">
* <child>
* <object class="GtkBox">
* <property name="visible">True</property>
* <property name="margin-start">10</property>
* <property name="margin-end">10</property>
* <property name="margin-top">10</property>
* <property name="margin-bottom">10</property>
* <child>
* <object class="GtkModelButton">
* <property name="visible">True</property>
* <property name="action-name">view.cut</property>
* <property name="text" translatable="yes">Cut</property>
* </object>
* </child>
* <child>
* <object class="GtkModelButton">
* <property name="visible">True</property>
* <property name="action-name">view.copy</property>
* <property name="text" translatable="yes">Copy</property>
* </object>
* </child>
* <child>
* <object class="GtkModelButton">
* <property name="visible">True</property>
* <property name="action-name">view.paste</property>
* <property name="text" translatable="yes">Paste</property>
* </object>
* </child>
* </object>
* </child>
* </object>
* ]|
*
* # CSS nodes
*
* |[<!-- language="plain" -->
* modelbutton
* ├── <child>
* ╰── check
* ]|
*
* |[<!-- language="plain" -->
* modelbutton
* ├── <child>
* ╰── radio
* ]|
*
* |[<!-- language="plain" -->
* modelbutton
* ├── <child>
* ╰── arrow
* ]|
*
* GtkModelButton has a main CSS node with name modelbutton, and a subnode,
* which will have the name check, radio or arrow, depending on the role
* of the button and whether it has a menu name set.
*
* The subnode is positioned before or after the content nodes and gets the
* .left or .right style class, depending on where it is located.
*
* |[<!-- language="plain" -->
* button.model
* ├── <child>
* ╰── check
* ]|
*
* Iconic model buttons (see #GtkModelButton:iconic) change the name of
* their main node to button and add a .model style class to it. The indicator
* subnode is invisible in this case.
*/
struct _GtkModelButton
{
GtkWidget parent_instance;
GtkWidget *box;
GtkWidget *image;
GtkWidget *label;
GtkWidget *accel_label;
GtkWidget *start_box;
GtkWidget *start_indicator;
GtkWidget *end_indicator;
GtkWidget *popover;
GtkActionHelper *action_helper;
gchar *menu_name;
GtkButtonRole role;
GtkSizeGroup *indicators;
char *accel;
guint open_timeout;
GtkEventController *controller;
guint active : 1;
guint centered : 1;
guint iconic : 1;
};
typedef GtkWidgetClass GtkModelButtonClass;
static void gtk_model_button_actionable_iface_init (GtkActionableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkModelButton, gtk_model_button, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIONABLE, gtk_model_button_actionable_iface_init))
GType
gtk_button_role_get_type (void)
{
static gsize gtk_button_role_type;
if (g_once_init_enter (&gtk_button_role_type))
{
static const GEnumValue values[] = {
{ GTK_BUTTON_ROLE_NORMAL, "GTK_BUTTON_ROLE_NORMAL", "normal" },
{ GTK_BUTTON_ROLE_CHECK, "GTK_BUTTON_ROLE_CHECK", "check" },
{ GTK_BUTTON_ROLE_RADIO, "GTK_BUTTON_ROLE_RADIO", "radio" },
{ GTK_BUTTON_ROLE_TITLE, "GTK_BUTTON_ROLE_RADIO", "title" },
{ 0, NULL, NULL }
};
GType type;
type = g_enum_register_static (I_("GtkButtonRole"), values);
g_once_init_leave (&gtk_button_role_type, type);
}
return gtk_button_role_type;
}
enum
{
PROP_0,
PROP_ROLE,
PROP_ICON,
PROP_TEXT,
PROP_USE_MARKUP,
PROP_ACTIVE,
PROP_MENU_NAME,
PROP_POPOVER,
PROP_ICONIC,
PROP_ACCEL,
PROP_INDICATOR_SIZE_GROUP,
/* actionable properties */
PROP_ACTION_NAME,
PROP_ACTION_TARGET,
LAST_PROP = PROP_ACTION_NAME
};
enum
{
SIGNAL_CLICKED,
LAST_SIGNAL
};
static GParamSpec *properties[LAST_PROP] = { NULL, };
static guint signals[LAST_SIGNAL] = { 0 };
static void
gtk_model_button_set_action_name (GtkActionable *actionable,
const char *action_name)
{
GtkModelButton *self = GTK_MODEL_BUTTON (actionable);
if (!self->action_helper)
self->action_helper = gtk_action_helper_new (actionable);
gtk_action_helper_set_action_name (self->action_helper, action_name);
}
static void
gtk_model_button_set_action_target_value (GtkActionable *actionable,
GVariant *action_target)
{
GtkModelButton *self = GTK_MODEL_BUTTON (actionable);
if (!self->action_helper)
self->action_helper = gtk_action_helper_new (actionable);
gtk_action_helper_set_action_target_value (self->action_helper, action_target);
}
static const char *
gtk_model_button_get_action_name (GtkActionable *actionable)
{
GtkModelButton *self = GTK_MODEL_BUTTON (actionable);
return gtk_action_helper_get_action_name (self->action_helper);
}
static GVariant *
gtk_model_button_get_action_target_value (GtkActionable *actionable)
{
GtkModelButton *self = GTK_MODEL_BUTTON (actionable);
return gtk_action_helper_get_action_target_value (self->action_helper);
}
static void
gtk_model_button_actionable_iface_init (GtkActionableInterface *iface)
{
iface->get_action_name = gtk_model_button_get_action_name;
iface->set_action_name = gtk_model_button_set_action_name;
iface->get_action_target_value = gtk_model_button_get_action_target_value;
iface->set_action_target_value = gtk_model_button_set_action_target_value;
}
static void
update_node_ordering (GtkModelButton *button)
{
GtkWidget *child;
if (gtk_widget_get_direction (GTK_WIDGET (button)) == GTK_TEXT_DIR_LTR)
{
if (button->start_indicator)
{
gtk_widget_add_css_class (button->start_indicator, GTK_STYLE_CLASS_LEFT);
gtk_widget_remove_css_class (button->start_indicator, GTK_STYLE_CLASS_RIGHT);
}
if (button->end_indicator)
{
gtk_widget_add_css_class (button->end_indicator, GTK_STYLE_CLASS_RIGHT);
gtk_widget_remove_css_class (button->end_indicator, GTK_STYLE_CLASS_LEFT);
}
child = gtk_widget_get_first_child (GTK_WIDGET (button));
if (button->start_indicator && child != button->start_box)
gtk_widget_insert_before (button->start_box, GTK_WIDGET (button), child);
child = gtk_widget_get_last_child (GTK_WIDGET (button));
if (button->end_indicator && child != button->end_indicator)
gtk_widget_insert_after (button->end_indicator, GTK_WIDGET (button), child);
}
else
{
if (button->start_indicator)
{
gtk_widget_add_css_class (button->start_indicator, GTK_STYLE_CLASS_RIGHT);
gtk_widget_remove_css_class (button->start_indicator, GTK_STYLE_CLASS_LEFT);
}
if (button->end_indicator)
{
gtk_widget_add_css_class (button->end_indicator, GTK_STYLE_CLASS_LEFT);
gtk_widget_remove_css_class (button->end_indicator, GTK_STYLE_CLASS_RIGHT);
}
child = gtk_widget_get_first_child (GTK_WIDGET (button));
if (button->end_indicator && child != button->end_indicator)
gtk_widget_insert_before (button->end_indicator, GTK_WIDGET (button), child);
child = gtk_widget_get_last_child (GTK_WIDGET (button));
if (child != button->start_box)
gtk_widget_insert_after (button->start_box, GTK_WIDGET (button), child);
}
}
static void
update_end_indicator (GtkModelButton *self)
{
const gboolean is_ltr = gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_LTR;
if (!self->end_indicator)
return;
if (is_ltr)
{
gtk_widget_add_css_class (self->end_indicator, GTK_STYLE_CLASS_RIGHT);
gtk_widget_remove_css_class (self->end_indicator, GTK_STYLE_CLASS_LEFT);
}
else
{
gtk_widget_add_css_class (self->end_indicator, GTK_STYLE_CLASS_LEFT);
gtk_widget_remove_css_class (self->end_indicator, GTK_STYLE_CLASS_RIGHT);
}
}
static GtkStateFlags
get_start_indicator_state (GtkModelButton *self)
{
GtkStateFlags state = gtk_widget_get_state_flags (GTK_WIDGET (self));
if (self->role == GTK_BUTTON_ROLE_CHECK ||
self->role == GTK_BUTTON_ROLE_RADIO)
{
if (self->active)
state |= GTK_STATE_FLAG_CHECKED;
else
state &= ~GTK_STATE_FLAG_CHECKED;
}
return state;
}
static void
update_start_indicator (GtkModelButton *self)
{
const gboolean is_ltr = gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_LTR;
if (!self->start_indicator)
return;
gtk_widget_set_state_flags (self->start_indicator, get_start_indicator_state (self), TRUE);
if (is_ltr)
{
gtk_widget_add_css_class (self->start_indicator, GTK_STYLE_CLASS_LEFT);
gtk_widget_remove_css_class (self->start_indicator, GTK_STYLE_CLASS_RIGHT);
}
else
{
gtk_widget_add_css_class (self->start_indicator, GTK_STYLE_CLASS_RIGHT);
gtk_widget_remove_css_class (self->start_indicator, GTK_STYLE_CLASS_LEFT);
}
}
static void
gtk_model_button_update_state (GtkModelButton *self)
{
GtkStateFlags indicator_state;
update_start_indicator (self);
update_end_indicator (self);
indicator_state = get_start_indicator_state (self);
if (self->iconic)
gtk_widget_set_state_flags (GTK_WIDGET (self), indicator_state, TRUE);
if (self->role == GTK_BUTTON_ROLE_CHECK ||
self->role == GTK_BUTTON_ROLE_RADIO)
{
AtkObject *object = _gtk_widget_peek_accessible (GTK_WIDGET (self));
if (object)
atk_object_notify_state_change (object, ATK_STATE_CHECKED,
(indicator_state & GTK_STATE_FLAG_CHECKED));
}
}
static void
gtk_model_button_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_flags)
{
gtk_model_button_update_state (GTK_MODEL_BUTTON (widget));
GTK_WIDGET_CLASS (gtk_model_button_parent_class)->state_flags_changed (widget, previous_flags);
}
static void
gtk_model_button_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir)
{
GtkModelButton *button = GTK_MODEL_BUTTON (widget);
gtk_model_button_update_state (button);
update_node_ordering (button);
GTK_WIDGET_CLASS (gtk_model_button_parent_class)->direction_changed (widget, previous_dir);
}
static void
update_node_name (GtkModelButton *self)
{
AtkObject *accessible;
AtkRole a11y_role;
const gchar *start_name;
const gchar *end_name;
accessible = gtk_widget_get_accessible (GTK_WIDGET (self));
switch (self->role)
{
case GTK_BUTTON_ROLE_TITLE:
a11y_role = ATK_ROLE_PUSH_BUTTON;
start_name = "arrow";
end_name = NULL;
break;
case GTK_BUTTON_ROLE_NORMAL:
a11y_role = ATK_ROLE_PUSH_BUTTON;
start_name = NULL;
if (self->menu_name || self->popover)
end_name = "arrow";
else
end_name = NULL;
break;
case GTK_BUTTON_ROLE_CHECK:
a11y_role = ATK_ROLE_CHECK_BOX;
start_name = "check";
end_name = NULL;
break;
case GTK_BUTTON_ROLE_RADIO:
a11y_role = ATK_ROLE_RADIO_BUTTON;
start_name = "radio";
end_name = NULL;
break;
default:
g_assert_not_reached ();
}
if (self->iconic)
{
start_name = NULL;
end_name = NULL;
}
atk_object_set_role (accessible, a11y_role);
if (start_name && !self->start_indicator)
{
self->start_indicator = gtk_builtin_icon_new (start_name);
gtk_widget_set_halign (self->start_indicator, GTK_ALIGN_CENTER);
gtk_widget_set_valign (self->start_indicator, GTK_ALIGN_CENTER);
update_start_indicator (self);
gtk_container_add (GTK_CONTAINER (self->start_box), self->start_indicator);
}
else if (start_name)
{
gtk_css_node_set_name (gtk_widget_get_css_node (self->start_indicator), g_quark_from_static_string (start_name));
}
else if (self->start_indicator)
{
gtk_container_remove (GTK_CONTAINER (self->start_box), self->start_indicator);
self->start_indicator = NULL;
}
if (end_name && !self->end_indicator)
{
self->end_indicator = gtk_builtin_icon_new (end_name);
gtk_widget_set_halign (self->end_indicator, GTK_ALIGN_CENTER);
gtk_widget_set_valign (self->end_indicator, GTK_ALIGN_CENTER);
gtk_widget_set_parent (self->end_indicator, GTK_WIDGET (self));
update_end_indicator (self);
}
else if (end_name)
{
gtk_css_node_set_name (gtk_widget_get_css_node (self->end_indicator), g_quark_from_static_string (end_name));
}
else
{
g_clear_pointer (&self->end_indicator, gtk_widget_unparent);
}
}
static void
gtk_model_button_set_role (GtkModelButton *self,
GtkButtonRole role)
{
if (role == self->role)
return;
self->role = role;
if (role == GTK_BUTTON_ROLE_TITLE)
{
gtk_widget_add_css_class (GTK_WIDGET (self), "title");
gtk_widget_set_halign (self->label, GTK_ALIGN_CENTER);
}
else
{
gtk_widget_remove_css_class (GTK_WIDGET (self), "title");
gtk_widget_set_halign (self->label, GTK_ALIGN_START);
}
update_node_name (self);
gtk_model_button_update_state (self);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ROLE]);
}
static void
update_visibility (GtkModelButton *self)
{
gboolean has_icon;
gboolean has_text;
has_icon = self->image && gtk_image_get_storage_type (GTK_IMAGE (self->image)) != GTK_IMAGE_EMPTY;
has_text = gtk_label_get_text (GTK_LABEL (self->label))[0] != '\0';
gtk_widget_set_visible (self->label, has_text && (!self->iconic || !has_icon));
gtk_widget_set_hexpand (self->label,
gtk_widget_get_visible (self->label) && !has_icon);
if (self->accel_label)
gtk_widget_set_visible (self->accel_label, has_text && (!self->iconic || !has_icon));
if (self->image)
{
gtk_widget_set_visible (self->image, has_icon && (self->iconic || !has_text));
gtk_widget_set_hexpand (self->image,
has_icon && (!has_text || !gtk_widget_get_visible (self->label)));
}
}
static void
gtk_model_button_set_icon (GtkModelButton *self,
GIcon *icon)
{
if (!self->image && icon)
{
self->image = gtk_image_new_from_gicon (icon);
gtk_widget_insert_before (self->image, GTK_WIDGET (self), self->label);
}
else if (self->image && !icon)
{
g_clear_pointer (&self->image, gtk_widget_unparent);
}
else if (icon)
{
gtk_image_set_from_gicon (GTK_IMAGE (self->image), icon);
}
update_visibility (self);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ICON]);
}
static void
gtk_model_button_set_text (GtkModelButton *button,
const gchar *text)
{
gtk_label_set_text_with_mnemonic (GTK_LABEL (button->label),
text ? text : "");
update_visibility (button);
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_TEXT]);
}
static void
gtk_model_button_set_use_markup (GtkModelButton *button,
gboolean use_markup)
{
use_markup = !!use_markup;
if (gtk_label_get_use_markup (GTK_LABEL (button->label)) == use_markup)
return;
gtk_label_set_use_markup (GTK_LABEL (button->label), use_markup);
update_visibility (button);
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_USE_MARKUP]);
}
static void
gtk_model_button_set_active (GtkModelButton *button,
gboolean active)
{
active = !!active;
if (button->active == active)
return;
button->active = active;
gtk_model_button_update_state (button);
gtk_widget_queue_draw (GTK_WIDGET (button));
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_ACTIVE]);
}
static void
gtk_model_button_set_menu_name (GtkModelButton *button,
const gchar *menu_name)
{
g_free (button->menu_name);
button->menu_name = g_strdup (menu_name);
update_node_name (button);
gtk_model_button_update_state (button);
gtk_widget_queue_resize (GTK_WIDGET (button));
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_MENU_NAME]);
}
static void
gtk_model_button_set_iconic (GtkModelButton *self,
gboolean iconic)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkCssNode *widget_node;
iconic = !!iconic;
if (self->iconic == iconic)
return;
self->iconic = iconic;
widget_node = gtk_widget_get_css_node (widget);
if (iconic)
{
gtk_widget_hide (self->start_box);
gtk_css_node_set_name (widget_node, g_quark_from_static_string ("button"));
gtk_widget_add_css_class (widget, "model");
gtk_widget_add_css_class (widget, "image-button");
gtk_widget_remove_css_class (widget, "flat");
}
else
{
gtk_widget_show (self->start_box);
gtk_css_node_set_name (widget_node, g_quark_from_static_string ("modelbutton"));
gtk_widget_remove_css_class (widget, "model");
gtk_widget_remove_css_class (widget, "image-button");
gtk_widget_add_css_class (widget, "flat");
}
self->centered = iconic;
if (!iconic)
{
if (self->start_indicator)
{
gtk_container_remove (GTK_CONTAINER (self->start_box), self->start_indicator);
self->start_indicator = NULL;
}
g_clear_pointer (&self->end_indicator, gtk_widget_unparent);
}
update_node_name (self);
update_visibility (self);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ICONIC]);
}
static void
gtk_model_button_set_popover (GtkModelButton *button,
GtkWidget *popover)
{
if (button->popover)
gtk_widget_unparent (button->popover);
button->popover = popover;
if (button->popover)
{
gtk_widget_set_parent (button->popover, GTK_WIDGET (button));
gtk_popover_set_position (GTK_POPOVER (button->popover), GTK_POS_RIGHT);
}
update_node_name (button);
gtk_model_button_update_state (button);
gtk_widget_queue_resize (GTK_WIDGET (button));
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_POPOVER]);
}
static void
update_accel (GtkModelButton *self,
const char *accel)
{
if (accel)
{
guint key;
GdkModifierType mods;
char *str;
if (!self->accel_label)
{
self->accel_label = g_object_new (GTK_TYPE_LABEL,
"css-name", "accelerator",
NULL);
gtk_widget_insert_before (self->accel_label, GTK_WIDGET (self), NULL);
}
gtk_accelerator_parse (accel, &key, &mods);
str = gtk_accelerator_get_label (key, mods);
gtk_label_set_label (GTK_LABEL (self->accel_label), str);
g_free (str);
if (GTK_IS_POPOVER (gtk_widget_get_native (GTK_WIDGET (self))))
{
GtkShortcutTrigger *trigger;
GtkShortcutAction *action;
if (self->controller)
{
while (g_list_model_get_n_items (G_LIST_MODEL (self->controller)) > 0)
{
GtkShortcut *shortcut = g_list_model_get_item (G_LIST_MODEL (self->controller), 0);
gtk_shortcut_controller_remove_shortcut (GTK_SHORTCUT_CONTROLLER (self->controller),
shortcut);
g_object_unref (shortcut);
}
}
else
{
self->controller = gtk_shortcut_controller_new ();
gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (self->controller), GTK_SHORTCUT_SCOPE_MANAGED);
gtk_widget_add_controller (GTK_WIDGET (self), self->controller);
}
trigger = gtk_keyval_trigger_new (key, mods);
action = gtk_signal_action_new ("clicked");
gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (self->controller),
gtk_shortcut_new (trigger, action));
}
}
else
{
g_clear_pointer (&self->accel_label, gtk_widget_unparent);
if (self->controller)
{
gtk_widget_remove_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (self->controller));
g_clear_object (&self->controller);
}
}
}
static void
gtk_model_button_set_accel (GtkModelButton *button,
const char *accel)
{
g_free (button->accel);
button->accel = g_strdup (accel);
update_accel (button, button->accel);
update_visibility (button);
g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_ACCEL]);
}
static void
gtk_model_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkModelButton *self = GTK_MODEL_BUTTON (object);
switch (prop_id)
{
case PROP_ROLE:
g_value_set_enum (value, self->role);
break;
case PROP_ICON:
g_value_set_object (value, self->image ? gtk_image_get_gicon (GTK_IMAGE (self->image)) : NULL);
break;
case PROP_TEXT:
g_value_set_string (value, gtk_label_get_text (GTK_LABEL (self->label)));
break;
case PROP_USE_MARKUP:
g_value_set_boolean (value, gtk_label_get_use_markup (GTK_LABEL (self->label)));
break;
case PROP_ACTIVE:
g_value_set_boolean (value, self->active);
break;
case PROP_MENU_NAME:
g_value_set_string (value, self->menu_name);
break;
case PROP_POPOVER:
g_value_set_object (value, self->popover);
break;
case PROP_ICONIC:
g_value_set_boolean (value, self->iconic);
break;
case PROP_ACCEL:
g_value_set_string (value, self->accel);
break;
case PROP_INDICATOR_SIZE_GROUP:
g_value_set_object (value, self->indicators);
break;
case PROP_ACTION_NAME:
g_value_set_string (value, gtk_action_helper_get_action_name (self->action_helper));
break;
case PROP_ACTION_TARGET:
g_value_set_variant (value, gtk_action_helper_get_action_target_value (self->action_helper));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_model_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkModelButton *button = GTK_MODEL_BUTTON (object);
switch (prop_id)
{
case PROP_ROLE:
gtk_model_button_set_role (button, g_value_get_enum (value));
break;
case PROP_ICON:
gtk_model_button_set_icon (button, g_value_get_object (value));
break;
case PROP_TEXT:
gtk_model_button_set_text (button, g_value_get_string (value));
break;
case PROP_USE_MARKUP:
gtk_model_button_set_use_markup (button, g_value_get_boolean (value));
break;
case PROP_ACTIVE:
gtk_model_button_set_active (button, g_value_get_boolean (value));
break;
case PROP_MENU_NAME:
gtk_model_button_set_menu_name (button, g_value_get_string (value));
break;
case PROP_POPOVER:
gtk_model_button_set_popover (button, (GtkWidget *)g_value_get_object (value));
break;
case PROP_ICONIC:
gtk_model_button_set_iconic (button, g_value_get_boolean (value));
break;
case PROP_ACCEL:
gtk_model_button_set_accel (button, g_value_get_string (value));
break;
case PROP_INDICATOR_SIZE_GROUP:
if (button->indicators)
gtk_size_group_remove_widget (button->indicators, button->start_box);
button->indicators = GTK_SIZE_GROUP (g_value_get_object (value));
if (button->indicators)
gtk_size_group_add_widget (button->indicators, button->start_box);
break;
case PROP_ACTION_NAME:
gtk_model_button_set_action_name (GTK_ACTIONABLE (button), g_value_get_string (value));
break;
case PROP_ACTION_TARGET:
gtk_model_button_set_action_target_value (GTK_ACTIONABLE (button), g_value_get_variant (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_model_button_destroy (GtkWidget *widget)
{
GtkModelButton *model_button = GTK_MODEL_BUTTON (widget);
g_clear_pointer (&model_button->menu_name, g_free);
GTK_WIDGET_CLASS (gtk_model_button_parent_class)->destroy (widget);
}
static void
switch_menu (GtkModelButton *button)
{
GtkWidget *stack;
stack = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_STACK);
if (stack != NULL)
gtk_stack_set_visible_child_name (GTK_STACK (stack), button->menu_name);
}
static void
close_menu (GtkModelButton *self)
{
GtkWidget *popover;
popover = gtk_widget_get_ancestor (GTK_WIDGET (self), GTK_TYPE_POPOVER);
while (popover != NULL)
{
gtk_popover_popdown (GTK_POPOVER (popover));
if (GTK_IS_POPOVER_MENU (popover))
popover = gtk_popover_menu_get_parent_menu (GTK_POPOVER_MENU (popover));
else
popover = NULL;
}
}
static void
gtk_model_button_clicked (GtkGestureClick *gesture,
guint n_press,
double x,
double y,
GtkModelButton *self)
{
if (self->menu_name != NULL)
{
switch_menu (self);
}
else if (self->popover != NULL)
{
GtkPopoverMenu *menu;
GtkWidget *submenu;
menu = (GtkPopoverMenu *)gtk_widget_get_ancestor (GTK_WIDGET (self), GTK_TYPE_POPOVER_MENU);
submenu = self->popover;
gtk_popover_popup (GTK_POPOVER (submenu));
gtk_popover_menu_set_open_submenu (menu, submenu);
gtk_popover_menu_set_parent_menu (GTK_POPOVER_MENU (submenu), GTK_WIDGET (menu));
}
else if (self->role == GTK_BUTTON_ROLE_NORMAL)
{
close_menu (self);
}
g_signal_emit (self, signals[SIGNAL_CLICKED], 0);
if (self->action_helper)
gtk_action_helper_activate (self->action_helper);
}
static void
gtk_model_button_finalize (GObject *object)
{
GtkModelButton *button = GTK_MODEL_BUTTON (object);
g_clear_pointer (&button->image, gtk_widget_unparent);
g_clear_pointer (&button->label, gtk_widget_unparent);
g_clear_pointer (&button->start_box, gtk_widget_unparent);
g_clear_pointer (&button->accel_label, gtk_widget_unparent);
g_clear_pointer (&button->end_indicator, gtk_widget_unparent);
g_clear_object (&button->action_helper);
g_free (button->accel);
g_clear_pointer (&button->popover, gtk_widget_unparent);
if (button->open_timeout)
g_source_remove (button->open_timeout);
G_OBJECT_CLASS (gtk_model_button_parent_class)->finalize (object);
}
static gboolean
gtk_model_button_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkModelButton *button = GTK_MODEL_BUTTON (widget);
if (gtk_widget_is_focus (widget))
{
if (direction == GTK_DIR_LEFT &&
button->role == GTK_BUTTON_ROLE_TITLE &&
button->menu_name != NULL)
{
switch_menu (button);
return TRUE;
}
else if (direction == GTK_DIR_RIGHT &&
button->role == GTK_BUTTON_ROLE_NORMAL &&
button->menu_name != NULL)
{
switch_menu (button);
return TRUE;
}
else if (direction == GTK_DIR_RIGHT &&
button->role == GTK_BUTTON_ROLE_NORMAL &&
button->popover != NULL)
{
GtkPopoverMenu *menu;
GtkWidget *submenu;
menu = GTK_POPOVER_MENU (gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_POPOVER_MENU));
submenu = button->popover;
gtk_popover_popup (GTK_POPOVER (submenu));
gtk_popover_menu_set_open_submenu (menu, submenu);
gtk_popover_menu_set_parent_menu (GTK_POPOVER_MENU (submenu), GTK_WIDGET (menu));
return TRUE;
}
}
else
{
gtk_widget_grab_focus (widget);
return TRUE;
}
return FALSE;
}
static AtkObject *
gtk_model_button_get_accessible (GtkWidget *widget)
{
AtkObject *object;
object = GTK_WIDGET_CLASS (gtk_model_button_parent_class)->get_accessible (widget);
gtk_model_button_update_state (GTK_MODEL_BUTTON (widget));
return object;
}
static void
gtk_model_button_class_init (GtkModelButtonClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->finalize = gtk_model_button_finalize;
object_class->get_property = gtk_model_button_get_property;
object_class->set_property = gtk_model_button_set_property;
widget_class->destroy = gtk_model_button_destroy;
widget_class->state_flags_changed = gtk_model_button_state_flags_changed;
widget_class->direction_changed = gtk_model_button_direction_changed;
widget_class->focus = gtk_model_button_focus;
widget_class->get_accessible = gtk_model_button_get_accessible;
/**
* GtkModelButton:role:
*
* Specifies whether the button is a plain, check or radio button.
* When #GtkActionable:action-name is set, the role will be determined
* from the action and does not have to be set explicitly.
*/
properties[PROP_ROLE] =
g_param_spec_enum ("role",
P_("Role"),
P_("The role of this button"),
GTK_TYPE_BUTTON_ROLE,
GTK_BUTTON_ROLE_NORMAL,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:icon:
*
* A #GIcon that will be used if iconic appearance for the button is
* desired.
*/
properties[PROP_ICON] =
g_param_spec_object ("icon",
P_("Icon"),
P_("The icon"),
G_TYPE_ICON,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:text:
*
* The label for the button.
*/
properties[PROP_TEXT] =
g_param_spec_string ("text",
P_("Text"),
P_("The text"),
"",
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:use-markup:
*
* If %TRUE, XML tags in the text of the button are interpreted as by
* pango_parse_markup() to format the enclosed spans of text. If %FALSE, the
* text will be displayed verbatim.
*/
properties[PROP_USE_MARKUP] =
g_param_spec_boolean ("use-markup",
P_("Use markup"),
P_("The text of the button includes XML markup. See pango_parse_markup()"),
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:active:
*
* The state of the button. This is reflecting the state of the associated
* #GAction.
*/
properties[PROP_ACTIVE] =
g_param_spec_boolean ("active",
P_("Active"),
P_("Active"),
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:menu-name:
*
* The name of a submenu to open when the button is activated. * If this is set, the button should not have an action associated with it.
*/
properties[PROP_MENU_NAME] =
g_param_spec_string ("menu-name",
P_("Menu name"),
P_("The name of the menu to open"),
NULL,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
properties[PROP_POPOVER] =
g_param_spec_object ("popover",
P_("Popover"),
P_("Popover to open"),
GTK_TYPE_POPOVER,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:iconic:
*
* If this property is set, the button will show an icon if one is set.
* If no icon is set, the text will be used. This is typically used for
* horizontal sections of linked buttons.
*/
properties[PROP_ICONIC] =
g_param_spec_boolean ("iconic",
P_("Iconic"),
P_("Whether to prefer the icon over text"),
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkModelButton:indicator-size-group:
*
* Containers like #GtkPopoverMenu can provide a size group
* in this property to align the checks and radios of all
* the model buttons in a menu.
*/
properties[PROP_INDICATOR_SIZE_GROUP] =
g_param_spec_object ("indicator-size-group",
P_("Size group"),
P_("Size group for checks and radios"),
GTK_TYPE_SIZE_GROUP,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
properties[PROP_ACCEL] =
g_param_spec_string ("accel",
P_("Accel"),
P_("The accelerator"),
NULL,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, LAST_PROP, properties);
g_object_class_override_property (object_class, PROP_ACTION_NAME, "action-name");
g_object_class_override_property (object_class, PROP_ACTION_TARGET, "action-target");
signals[SIGNAL_CLICKED] = g_signal_new (I_("clicked"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
widget_class->activate_signal = signals[SIGNAL_CLICKED];
gtk_widget_class_set_accessible_role (GTK_WIDGET_CLASS (class), ATK_ROLE_PUSH_BUTTON);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
gtk_widget_class_set_css_name (GTK_WIDGET_CLASS (class), I_("modelbutton"));
}
static void
close_submenus (GtkPopover *popover)
{
GtkPopoverMenu *menu;
if (GTK_IS_POPOVER_MENU (popover))
{
GtkWidget *submenu;
menu = GTK_POPOVER_MENU (popover);
submenu = gtk_popover_menu_get_open_submenu (menu);
if (submenu)
{
close_submenus (GTK_POPOVER (submenu));
gtk_popover_popdown (GTK_POPOVER (submenu));
gtk_popover_menu_set_open_submenu (menu, NULL);
}
}
}
static gboolean
open_submenu (gpointer data)
{
GtkModelButton *button = data;
GtkPopover *popover;
popover = (GtkPopover*)gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_POPOVER);
if (GTK_IS_POPOVER_MENU (popover))
{
gtk_popover_menu_set_active_item (GTK_POPOVER_MENU (popover), GTK_WIDGET (button));
if (button->popover)
{
GtkWidget *submenu = button->popover;
if (gtk_popover_menu_get_open_submenu (GTK_POPOVER_MENU (popover)) != submenu)
close_submenus (popover);
gtk_popover_popup (GTK_POPOVER (submenu));
gtk_popover_menu_set_open_submenu (GTK_POPOVER_MENU (popover), submenu);
gtk_popover_menu_set_parent_menu (GTK_POPOVER_MENU (submenu), GTK_WIDGET (popover));
}
}
button->open_timeout = 0;
return G_SOURCE_REMOVE;
}
#define OPEN_TIMEOUT 80
static void
start_open (GtkModelButton *button)
{
if (button->open_timeout)
g_source_remove (button->open_timeout);
if (button->popover &&
gtk_widget_get_visible (button->popover))
return;
button->open_timeout = g_timeout_add (OPEN_TIMEOUT, open_submenu, button);
g_source_set_name_by_id (button->open_timeout, "[gtk] open_submenu");
}
static void
stop_open (GtkModelButton *button)
{
if (button->open_timeout)
{
g_source_remove (button->open_timeout);
button->open_timeout = 0;
}
}
static void
pointer_cb (GObject *object,
GParamSpec *pspec,
gpointer data)
{
gboolean contains;
contains = gtk_event_controller_motion_contains_pointer (GTK_EVENT_CONTROLLER_MOTION (object));
if (contains)
{
GtkWidget *target;
GtkWidget *popover;
target = GTK_WIDGET (data);
popover = gtk_widget_get_ancestor (target, GTK_TYPE_POPOVER_MENU);
if (popover)
{
if (gtk_popover_menu_get_open_submenu (GTK_POPOVER_MENU (popover)) != NULL)
start_open (GTK_MODEL_BUTTON (target));
else
open_submenu (target);
}
}
else
{
GtkModelButton *button = data;
stop_open (button);
}
}
static void
motion_cb (GtkEventController *controller,
double x,
double y,
gpointer data)
{
start_open (GTK_MODEL_BUTTON (data));
}
static void
focus_in_cb (GtkEventController *controller,
gpointer data)
{
GtkWidget *target;
GtkWidget *popover;
target = gtk_event_controller_get_widget (controller);
popover = gtk_widget_get_ancestor (target, GTK_TYPE_POPOVER_MENU);
if (popover)
gtk_popover_menu_set_active_item (GTK_POPOVER_MENU (popover), target);
}
static void
gtk_model_button_init (GtkModelButton *self)
{
GtkEventController *controller;
GtkGesture *gesture;
gtk_widget_set_can_focus (GTK_WIDGET (self), TRUE);
self->role = GTK_BUTTON_ROLE_NORMAL;
self->label = gtk_label_new ("");
gtk_widget_set_halign (self->label, GTK_ALIGN_START);
gtk_widget_set_parent (self->label, GTK_WIDGET (self));
self->start_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_insert_after (self->start_box, GTK_WIDGET (self), NULL);
update_node_ordering (self);
gtk_widget_add_css_class (GTK_WIDGET (self), "flat");
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "notify::contains-pointer", G_CALLBACK (pointer_cb), self);
g_signal_connect (controller, "motion", G_CALLBACK (motion_cb), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
controller = gtk_event_controller_focus_new ();
gtk_event_controller_set_propagation_limit (controller, GTK_LIMIT_NONE);
g_signal_connect (controller, "enter", G_CALLBACK (focus_in_cb), NULL);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
gesture = gtk_gesture_click_new ();
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), FALSE);
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (gesture), TRUE);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_PRIMARY);
g_signal_connect (gesture, "released", G_CALLBACK (gtk_model_button_clicked), self);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_CAPTURE);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
}
/**
* gtk_model_button_new:
*
* Creates a new GtkModelButton.
*
* Returns: the newly created #GtkModelButton widget
*/
GtkWidget *
gtk_model_button_new (void)
{
return g_object_new (GTK_TYPE_MODEL_BUTTON, NULL);
}
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