gtkapplication-quartz.c 11 KB
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/*
 * Copyright © 2010 Codethink Limited
 * Copyright © 2013 Canonical Limited
 *
 * 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: Ryan Lortie <desrt@desrt.ca>
 */

#include "config.h"

#include "gtkapplicationprivate.h"
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#include "gtkbuilder.h"
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#import <Cocoa/Cocoa.h>

typedef struct
{
  guint cookie;
  GtkApplicationInhibitFlags flags;
  char *reason;
  GtkWindow *window;
} GtkApplicationQuartzInhibitor;

static void
gtk_application_quartz_inhibitor_free (GtkApplicationQuartzInhibitor *inhibitor)
{
  g_free (inhibitor->reason);
  g_clear_object (&inhibitor->window);
  g_slice_free (GtkApplicationQuartzInhibitor, inhibitor);
}

typedef GtkApplicationImplClass GtkApplicationImplQuartzClass;

typedef struct
{
  GtkApplicationImpl impl;

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  GtkActionMuxer *muxer;
  GMenu *combined;

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  GSList *inhibitors;
  gint quit_inhibit;
  guint next_cookie;
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  NSObject *delegate;
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} GtkApplicationImplQuartz;

G_DEFINE_TYPE (GtkApplicationImplQuartz, gtk_application_impl_quartz, GTK_TYPE_APPLICATION_IMPL)

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@interface GtkApplicationQuartzDelegate : NSObject
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{
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  GtkApplicationImplQuartz *quartz;
}
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- (id)initWithImpl:(GtkApplicationImplQuartz*)impl;
- (NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication *)sender;
@end
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@implementation GtkApplicationQuartzDelegate
-(id)initWithImpl:(GtkApplicationImplQuartz*)impl
{
  [super init];
  quartz = impl;
  return self;
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}

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-(NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication *)sender
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{
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  /* We have no way to give our message other than to pop up a dialog
   * ourselves, which we should not do since the OS will already show
   * one when we return NSTerminateNow.
   *
   * Just let the OS show the generic message...
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   */
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  return quartz->quit_inhibit == 0 ? NSTerminateNow : NSTerminateCancel;
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}
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@end
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/* these exist only for accel handling */
static void
gtk_application_impl_quartz_hide (GSimpleAction *action,
                                  GVariant      *parameter,
                                  gpointer       user_data)
{
  [NSApp hide:NSApp];
}

static void
gtk_application_impl_quartz_hide_others (GSimpleAction *action,
                                         GVariant      *parameter,
                                         gpointer       user_data)
{
  [NSApp hideOtherApplications:NSApp];
}

static void
gtk_application_impl_quartz_show_all (GSimpleAction *action,
                                      GVariant      *parameter,
                                      gpointer       user_data)
{
  [NSApp unhideAllApplications:NSApp];
}

static GActionEntry gtk_application_impl_quartz_actions[] = {
  { "hide",             gtk_application_impl_quartz_hide        },
  { "hide-others",      gtk_application_impl_quartz_hide_others },
  { "show-all",         gtk_application_impl_quartz_show_all    }
};

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static void
gtk_application_impl_quartz_startup (GtkApplicationImpl *impl,
                                     gboolean            register_session)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;
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  GSimpleActionGroup *gtkinternal;
  GMenuModel *app_menu;
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  const gchar *pref_accel[] = {"<Primary>comma", NULL};
  const gchar *hide_others_accel[] = {"<Primary><Alt>h", NULL};
  const gchar *hide_accel[] = {"<Primary>h", NULL};
  const gchar *quit_accel[] = {"<Primary>q", NULL};
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  if (register_session)
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    {
      quartz->delegate = [[GtkApplicationQuartzDelegate alloc] initWithImpl:quartz];
      [NSApp setDelegate: quartz->delegate];
    }
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  quartz->muxer = gtk_action_muxer_new ();
  gtk_action_muxer_set_parent (quartz->muxer, gtk_application_get_action_muxer (impl->application));

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  /* Add the default accels */
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  gtk_application_set_accels_for_action (impl->application, "app.preferences", pref_accel);
  gtk_application_set_accels_for_action (impl->application, "gtkinternal.hide-others", hide_others_accel);
  gtk_application_set_accels_for_action (impl->application, "gtkinternal.hide", hide_accel);
  gtk_application_set_accels_for_action (impl->application, "app.quit", quit_accel);
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  /* and put code behind the 'special' accels */
  gtkinternal = g_simple_action_group_new ();
  g_action_map_add_action_entries (G_ACTION_MAP (gtkinternal), gtk_application_impl_quartz_actions,
                                   G_N_ELEMENTS (gtk_application_impl_quartz_actions), quartz);
  gtk_application_insert_action_group (impl->application, "gtkinternal", G_ACTION_GROUP (gtkinternal));
  g_object_unref (gtkinternal);

  /* now setup the menu */
  app_menu = gtk_application_get_app_menu (impl->application);
  if (app_menu == NULL)
    {
      GtkBuilder *builder;

      /* If the user didn't fill in their own menu yet, add ours.
       *
       * The fact that we do this here ensures that we will always have the
       * app menu at index 0 in 'combined'.
       */
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      builder = gtk_builder_new_from_resource ("/org/gtk/libgtk/ui/gtkapplication-quartz.ui");
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      gtk_application_set_app_menu (impl->application, G_MENU_MODEL (gtk_builder_get_object (builder, "app-menu")));
      g_object_unref (builder);
    }
  else
    gtk_application_impl_set_app_menu (impl, app_menu);

  /* This may or may not add an item to 'combined' */
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  gtk_application_impl_set_menubar (impl, gtk_application_get_menubar (impl->application));

  /* OK.  Now put it in the menu. */
  gtk_application_impl_quartz_setup_menu (G_MENU_MODEL (quartz->combined), quartz->muxer);
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  [NSApp finishLaunching];
}

static void
gtk_application_impl_quartz_shutdown (GtkApplicationImpl *impl)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;

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  /* destroy our custom menubar */
  [NSApp setMainMenu:[[[NSMenu alloc] init] autorelease]];
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  if (quartz->delegate)
    {
      [quartz->delegate release];
      quartz->delegate = NULL;
    }

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  g_slist_free_full (quartz->inhibitors, (GDestroyNotify) gtk_application_quartz_inhibitor_free);
  quartz->inhibitors = NULL;
}

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static void
gtk_application_impl_quartz_active_window_changed (GtkApplicationImpl *impl,
                                                   GtkWindow          *window)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;

  gtk_action_muxer_remove (quartz->muxer, "win");

  if (G_IS_ACTION_GROUP (window))
    gtk_action_muxer_insert (quartz->muxer, "win", G_ACTION_GROUP (window));
}

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static void
gtk_application_impl_quartz_set_app_menu (GtkApplicationImpl *impl,
                                          GMenuModel         *app_menu)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;

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  /* If there are any items at all, then the first one is the app menu */
  if (g_menu_model_get_n_items (G_MENU_MODEL (quartz->combined)))
    g_menu_remove (quartz->combined, 0);

  if (app_menu)
    g_menu_prepend_submenu (quartz->combined, "Application", app_menu);
  else
    {
      GMenu *empty;

      /* We must preserve the rule that index 0 is the app menu */
      empty = g_menu_new ();
      g_menu_prepend_submenu (quartz->combined, "Application", G_MENU_MODEL (empty));
      g_object_unref (empty);
    }
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}

static void
gtk_application_impl_quartz_set_menubar (GtkApplicationImpl *impl,
                                         GMenuModel         *menubar)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;

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  /* If we have the menubar, it is a section at index '1' */
  if (g_menu_model_get_n_items (G_MENU_MODEL (quartz->combined)) > 1)
    g_menu_remove (quartz->combined, 1);

  if (menubar)
    g_menu_append_section (quartz->combined, NULL, menubar);
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}

static guint
gtk_application_impl_quartz_inhibit (GtkApplicationImpl         *impl,
                                     GtkWindow                  *window,
                                     GtkApplicationInhibitFlags  flags,
                                     const gchar                *reason)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;
  GtkApplicationQuartzInhibitor *inhibitor;

  inhibitor = g_slice_new (GtkApplicationQuartzInhibitor);
  inhibitor->cookie = ++quartz->next_cookie;
  inhibitor->flags = flags;
  inhibitor->reason = g_strdup (reason);
  inhibitor->window = window ? g_object_ref (window) : NULL;

  quartz->inhibitors = g_slist_prepend (quartz->inhibitors, inhibitor);

  if (flags & GTK_APPLICATION_INHIBIT_LOGOUT)
    quartz->quit_inhibit++;

  return inhibitor->cookie;
}

static void
gtk_application_impl_quartz_uninhibit (GtkApplicationImpl *impl,
                                       guint               cookie)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;
  GSList *iter;

  for (iter = quartz->inhibitors; iter; iter = iter->next)
    {
      GtkApplicationQuartzInhibitor *inhibitor = iter->data;

      if (inhibitor->cookie == cookie)
        {
          if (inhibitor->flags & GTK_APPLICATION_INHIBIT_LOGOUT)
            quartz->quit_inhibit--;
          gtk_application_quartz_inhibitor_free (inhibitor);
          quartz->inhibitors = g_slist_delete_link (quartz->inhibitors, iter);
          return;
        }
    }

  g_warning ("Invalid inhibitor cookie");
}

static gboolean
gtk_application_impl_quartz_is_inhibited (GtkApplicationImpl         *impl,
                                          GtkApplicationInhibitFlags  flags)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;

  if (flags & GTK_APPLICATION_INHIBIT_LOGOUT)
    return quartz->quit_inhibit > 0;

  return FALSE;
}

static void
gtk_application_impl_quartz_init (GtkApplicationImplQuartz *quartz)
{
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  quartz->combined = g_menu_new ();
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}

static void
gtk_application_impl_quartz_finalize (GObject *object)
{
  GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) object;

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  g_clear_object (&quartz->combined);
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  G_OBJECT_CLASS (gtk_application_impl_quartz_parent_class)->finalize (object);
}

static void
gtk_application_impl_quartz_class_init (GtkApplicationImplClass *class)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (class);

  class->startup = gtk_application_impl_quartz_startup;
  class->shutdown = gtk_application_impl_quartz_shutdown;
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  class->active_window_changed = gtk_application_impl_quartz_active_window_changed;
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  class->set_app_menu = gtk_application_impl_quartz_set_app_menu;
  class->set_menubar = gtk_application_impl_quartz_set_menubar;
  class->inhibit = gtk_application_impl_quartz_inhibit;
  class->uninhibit = gtk_application_impl_quartz_uninhibit;
  class->is_inhibited = gtk_application_impl_quartz_is_inhibited;

  gobject_class->finalize = gtk_application_impl_quartz_finalize;
}