gio/gcocoanotificationbackend.c

   1 /*
   2  * Copyright © 2015 Patrick Griffis
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General
  15  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Authors: Patrick Griffis
  18  */
  19
  20 #include "config.h"
  21
  22 #import <Cocoa/Cocoa.h>
  23 #include "gnotificationbackend.h"
  24 #include "gapplication.h"
  25 #include "gaction.h"
  26 #include "gactiongroup.h"
  27 #include "giomodule-priv.h"
  28 #include "gnotification-private.h"
  29 #include "gthemedicon.h"
  30 #include "gfileicon.h"
  31 #include "gfile.h"
  32
  33 #define G_TYPE_COCOA_NOTIFICATION_BACKEND  (g_cocoa_notification_backend_get_type ())
  34 #define G_COCOA_NOTIFICATION_BACKEND(o)    (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_COCOA_NOTIFICATION_BACKEND, GCocoaNotificationBackend))
  35
  36 typedef struct _GCocoaNotificationBackend GCocoaNotificationBackend;
  37 typedef GNotificationBackendClass            GCocoaNotificationBackendClass;
  38 struct _GCocoaNotificationBackend
  39 {
  40   GNotificationBackend parent;
  41 };
  42
  43 GType g_cocoa_notification_backend_get_type (void);
  44
  45 G_DEFINE_TYPE_WITH_CODE (GCocoaNotificationBackend, g_cocoa_notification_backend, G_TYPE_NOTIFICATION_BACKEND,
  46   _g_io_modules_ensure_extension_points_registered ();
  47   g_io_extension_point_implement (G_NOTIFICATION_BACKEND_EXTENSION_POINT_NAME, g_define_type_id, "cocoa", 0));
  48
  49 static NSString *
  50 nsstring_from_cstr (const char *cstr)
  51 {
  52   if (!cstr)
  53     return nil;
  54
  55   return [[NSString alloc] initWithUTF8String:cstr];
  56 }
  57
  58 static NSImage*
  59 nsimage_from_gicon (GIcon *icon)
  60 {
  61   if (G_IS_FILE_ICON (icon))
  62     {
  63       NSImage *image = nil;
  64       GFile *file;
  65       char *path;
  66
  67       file = g_file_icon_get_file (G_FILE_ICON (icon));
  68       path = g_file_get_path (file);
  69       if (path)
  70         {
  71           NSString *str_path = nsstring_from_cstr (path);
  72           image = [[NSImage alloc] initByReferencingFile:str_path];
  73
  74           [str_path release];
  75           g_free (path);
  76         }
  77       return image;
  78     }
  79   else
  80     {
  81       g_warning ("This icon type is not handled by this NotificationBackend");
  82       return nil;
  83     }
  84 }
  85
  86 static void
  87 activate_detailed_action (const char * action)
  88 {
  89   char *name;
  90   GVariant *target;
  91
  92   if (!g_str_has_prefix (action, "app."))
  93     {
  94       g_warning ("Notification action does not have \"app.\" prefix");
  95       return;
  96     }
  97
  98   if (g_action_parse_detailed_name (action, &name, &target, NULL))
  99     {
 100       g_action_group_activate_action (G_ACTION_GROUP (g_application_get_default()), name + 4, target);
 101       g_free (name);
 102       if (target)
 103         g_variant_unref (target);
 104     }
 105 }
 106
 107 @interface GNotificationCenterDelegate : NSObject<NSUserNotificationCenterDelegate> @end
 108 @implementation GNotificationCenterDelegate
 109
 110 -(void) userNotificationCenter:(NSUserNotificationCenter*) center
 111        didActivateNotification:(NSUserNotification*)       notification
 112 {
 113   if ([notification activationType] == NSUserNotificationActivationTypeContentsClicked)
 114     {
 115       const char *action = [[notification userInfo][@"default"] UTF8String];
 116       if (action)
 117         activate_detailed_action (action);
 118       /* OSX Always activates the front window */
 119     }
 120   else if ([notification activationType] == NSUserNotificationActivationTypeActionButtonClicked)
 121     {
 122       const char *action = [[notification userInfo][@"button0"] UTF8String];
 123       if (action)
 124         activate_detailed_action (action);
 125     }
 126
 127   [center removeDeliveredNotification:notification];
 128 }
 129
 130 @end
 131
 132 static GNotificationCenterDelegate *cocoa_notification_delegate;
 133
 134 static gboolean
 135 g_cocoa_notification_backend_is_supported (void)
 136 {
 137   NSBundle *bundle = [NSBundle mainBundle];
 138
 139   /* This is always actually supported, but without a bundle it does nothing */
 140   if (![bundle bundleIdentifier])
 141     return FALSE;
 142
 143   return TRUE;
 144 }
 145
 146 static void
 147 add_actions_to_notification (NSUserNotification   *userNotification,
 148                              GNotification        *notification)
 149 {
 150   guint n_buttons = g_notification_get_n_buttons (notification);
 151   char *action = NULL, *label = NULL;
 152   GVariant *target = NULL;
 153   NSMutableDictionary *user_info = nil;
 154
 155   if (g_notification_get_default_action (notification, &action, &target))
 156     {
 157       char *detailed_name = g_action_print_detailed_name (action, target);
 158       NSString *action_name = nsstring_from_cstr (detailed_name);
 159       user_info = [[NSMutableDictionary alloc] init];
 160
 161       user_info[@"default"] = action_name;
 162
 163       [action_name release];
 164       g_free (detailed_name);
 165       g_clear_pointer (&action, g_free);
 166       g_clear_pointer (&target, g_variant_unref);
 167     }
 168
 169   if (n_buttons)
 170     {
 171       g_notification_get_button (notification, 0, &label, &action, &target);
 172       if (label)
 173         {
 174           NSString *str_label = nsstring_from_cstr (label);
 175           char *detailed_name = g_action_print_detailed_name (action, target);
 176           NSString *action_name = nsstring_from_cstr (detailed_name);
 177
 178           if (!user_info)
 179             user_info = [[NSMutableDictionary alloc] init];
 180
 181           user_info[@"button0"] = action_name;
 182           userNotification.actionButtonTitle = str_label;
 183
 184           [str_label release];
 185           [action_name release];
 186           g_free (label);
 187           g_free (action);
 188           g_free (detailed_name);
 189           g_clear_pointer (&target, g_variant_unref);
 190         }
 191
 192       if (n_buttons > 1)
 193         g_warning ("Only a single button is currently supported by this NotificationBackend");
 194     }
 195
 196     userNotification.userInfo = user_info;
 197     [user_info release];
 198 }
 199
 200 static void
 201 g_cocoa_notification_backend_send_notification (GNotificationBackend *backend,
 202                                                 const gchar          *cstr_id,
 203                                                 GNotification        *notification)
 204 {
 205   NSString *str_title = nil, *str_text = nil, *str_id = nil;
 206   NSImage *content = nil;
 207   const char *cstr;
 208   GIcon *icon;
 209   NSUserNotification *userNotification;
 210   NSUserNotificationCenter *center;
 211
 212   if ((cstr = g_notification_get_title (notification)))
 213     str_title = nsstring_from_cstr (cstr);
 214   if ((cstr = g_notification_get_body (notification)))
 215     str_text = nsstring_from_cstr (cstr);
 216   if (cstr_id != NULL)
 217     str_id = nsstring_from_cstr (cstr_id);
 218   if ((icon = g_notification_get_icon (notification)))
 219     content = nsimage_from_gicon (icon);
 220   /* NOTE: There is no priority */
 221
 222   userNotification = [NSUserNotification new];
 223   userNotification.title = str_title;
 224   userNotification.informativeText = str_text;
 225   userNotification.identifier = str_id;
 226   userNotification.contentImage = content;
 227   /* NOTE: Buttons only show up if your bundle has NSUserNotificationAlertStyle set to "alerts" */
 228   add_actions_to_notification (userNotification, notification);
 229
 230   if (!cocoa_notification_delegate)
 231     cocoa_notification_delegate = [[GNotificationCenterDelegate alloc] init];
 232
 233   center = [NSUserNotificationCenter defaultUserNotificationCenter];
 234   center.delegate = cocoa_notification_delegate;
 235   [center deliverNotification:userNotification];
 236
 237   [str_title release];
 238   [str_text release];
 239   [str_id release];
 240   [content release];
 241   [userNotification release];
 242 }
 243
 244 static void
 245 g_cocoa_notification_backend_withdraw_notification (GNotificationBackend *backend,
 246                                                     const gchar          *cstr_id)
 247 {
 248   NSUserNotificationCenter *center = [NSUserNotificationCenter defaultUserNotificationCenter];
 249   NSArray *notifications = [center deliveredNotifications];
 250   NSString *str_id = nsstring_from_cstr (cstr_id);
 251
 252   for (NSUserNotification *notification in notifications)
 253     {
 254       if ([notification.identifier compare:str_id] == NSOrderedSame)
 255         {
 256           [center removeDeliveredNotification:notification];
 257           break;
 258         }
 259     }
 260
 261   [notifications release];
 262   [str_id release];
 263 }
 264
 265 static void
 266 g_cocoa_notification_backend_init (GCocoaNotificationBackend *backend)
 267 {
 268 }
 269
 270 static void
 271 g_cocoa_notification_backend_class_init (GCocoaNotificationBackendClass *klass)
 272 {
 273   GNotificationBackendClass *backend_class = G_NOTIFICATION_BACKEND_CLASS (klass);
 274
 275   backend_class->is_supported = g_cocoa_notification_backend_is_supported;
 276   backend_class->send_notification = g_cocoa_notification_backend_send_notification;
 277   backend_class->withdraw_notification = g_cocoa_notification_backend_withdraw_notification;
 278 }