aboutsummaryrefslogtreecommitdiff
path: root/src/notifications.cpp
blob: a2a1fc3b5325fdad6c021a7794f001933b7258d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
/*
 * Copyright 2014 Canonical Ltd.
 * Copyright 2021-2023 Robert Tari
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3, as published
 * by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranties of
 * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *   Charles Kerr <charles.kerr@canonical.com>
 *   Robert Tari <robert@tari.in>
 */

#include <notifications/notifications.h>

#include <libnotify/notify.h>

#include <messaging-menu/messaging-menu-app.h>
#include <messaging-menu/messaging-menu-message.h>

#ifdef LOMIRI_FEATURES_ENABLED
#include <lomiri-url-dispatcher.h>
#endif

#include <uuid/uuid.h>

#include <gio/gdesktopappinfo.h>

#include <map>
#include <set>
#include <string>
#include <vector>
#include <memory>


namespace ayatana {
namespace indicator {
namespace notifications {

static G_DEFINE_QUARK(NotificationKey, notification_key)

static G_DEFINE_QUARK(NotificationAction, notification_action)

/***
****
***/

class Builder::Impl
{
public:
    std::string m_title;
    std::string m_body;
    std::string m_icon_name;
    std::chrono::seconds m_duration;
    gint64 m_start_time  {};
    std::set<std::string> m_string_hints;
    std::vector<std::pair<std::string,std::string>> m_actions;
    std::function<void(const std::string&)> m_closed_callback;
    std::function<void()> m_timeout_callback;
    bool m_show_notification_bubble;
    bool m_post_to_messaging_menu;
};

Builder::Builder():
  impl(new Impl())
{
}

Builder::~Builder()
{
}

void
Builder::set_title (const std::string& title)
{
  impl->m_title = title;
}

void
Builder::set_body (const std::string& body)
{
  impl->m_body = body;
}

void
Builder::set_icon_name (const std::string& icon_name)
{
  impl->m_icon_name = icon_name;
}

void
Builder::set_timeout (const std::chrono::seconds& duration)
{
  impl->m_duration = duration;
}

void
Builder::add_hint (const std::string& name)
{
  impl->m_string_hints.insert (name);
}

void
Builder::add_action (const std::string& action, const std::string& label)
{
  impl->m_actions.push_back(std::pair<std::string,std::string>(action,label));
}

void
Builder::set_closed_callback (std::function<void (const std::string&)> cb)
{
  impl->m_closed_callback.swap (cb);
}

void
Builder::set_timeout_callback (std::function<void()> cb)
{
  impl->m_timeout_callback.swap (cb);
}

void
Builder::set_start_time (uint64_t time)
{
  impl->m_start_time = time;
}

void
Builder::set_show_notification_bubble (bool show)
{
  impl->m_show_notification_bubble = show;
}

void
Builder::set_post_to_messaging_menu (bool post)
{
  impl->m_post_to_messaging_menu = post;
}

/***
****
***/

class Engine::Impl
{
    struct notification_data
    {
        std::shared_ptr<NotifyNotification> nn;
        Builder::Impl data;
    };

    struct messaging_menu_data
    {
        std::string msg_id;
        std::function<void()> callback;
        Engine::Impl *self;
    };

public:

    explicit Impl(const std::string& app_name):
        m_app_name(app_name)
    {
        if (!notify_init(app_name.c_str()))
            g_critical("Unable to initialize libnotify!");

        // messaging menu
        auto app_id = calendar_app_id();
        if (!app_id.empty()) {
            m_messaging_app.reset(messaging_menu_app_new(app_id.c_str()), g_object_unref);
            messaging_menu_app_register(m_messaging_app.get());
        }
    }

    ~Impl()
    {
        close_all ();
        remove_all ();

        notify_uninit ();
        if (m_messaging_app)
            messaging_menu_app_unregister (m_messaging_app.get());
    }

    const std::string& app_name() const
    {
        return m_app_name;
    }

    bool supports_actions() const
    {
        return server_caps().count("actions") != 0;
    }

    void close_all ()
    {
        // call close() on all our keys

        std::set<int> keys;
        for (const auto& it : m_notifications)
            keys.insert (it.first);

        for (const int key : keys)
            close (key);
    }

    void close (int key)
    {
        auto it = m_notifications.find(key);
        if (it != m_notifications.end())
        {
            // tell the server to close the notification
            GError * error = nullptr;
            if (!notify_notification_close (it->second.nn.get(), &error))
            {
                g_warning ("Unable to close notification %d: %s", key, error->message);
                g_error_free (error);
            }

            // call the user callback and remove it from our bookkeeping
            remove_closed_notification (key);
        }
    }

    int show (const Builder& builder)
    {
        int ret = -1;
        const auto& info = *builder.impl;

        std::shared_ptr<NotifyNotification> nn (
            notify_notification_new(info.m_title.c_str(),
                                    info.m_body.c_str(),
                                    info.m_icon_name.c_str()),
            [this](NotifyNotification * n) {
                g_signal_handlers_disconnect_by_data(n, this);
                g_object_unref (G_OBJECT(n));
            }
        );

        if (info.m_duration.count() != 0)
        {
            const auto& d= info.m_duration;
            auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(d);
            notify_notification_set_timeout (nn.get (), ms.count ());
            // Lomiri has its own logic regarding timeout.
            notify_notification_set_hint (nn.get(),
                                          HINT_LOMIRI_TIMEOUT,
                                          g_variant_new_int32(ms.count()));
        }

        for (const auto& hint : info.m_string_hints)
        {
            notify_notification_set_hint (nn.get(),
                                          hint.c_str(),
                                          g_variant_new_string("true"));
        }

        for (const auto& action : info.m_actions)
        {
            notify_notification_add_action (nn.get(),
                                            action.first.c_str(),
                                            action.second.c_str(),
                                            on_notification_clicked,
                                            nullptr,
                                            nullptr);
        }

        static int next_key = 1;
        const int key = next_key++;
        g_object_set_qdata (G_OBJECT(nn.get()),
                            notification_key_quark(),
                            GINT_TO_POINTER(key));

        m_notifications[key] = { nn, info };
        g_signal_connect (nn.get(), "closed",
                          G_CALLBACK(on_notification_closed), this);

        if (!info.m_show_notification_bubble) {
            post(info);
            return ret;
        }

        GError * error = nullptr;
        if (notify_notification_show(nn.get(), &error))
        {
            ret = key;
        }
        else
        {
            g_critical ("Unable to show notification for '%s': %s",
                        info.m_title.c_str(),
                        error->message);
            g_error_free (error);
            m_notifications.erase(key);
        }

        return ret;
    }

    std::string post(const Builder::Impl& data)
    {
        if (!data.m_post_to_messaging_menu) {
            return "";
        }

        if (!m_messaging_app) {
            return std::string();
        }
        uuid_t message_uuid;
        uuid_generate(message_uuid);

        char uuid_buf[37];
        uuid_unparse(message_uuid, uuid_buf);
        const std::string message_id(uuid_buf);

        // use full icon path name, "calendar-app" does not work with themed icons
        auto icon_file = g_file_new_for_path(calendar_app_icon().c_str());
        // messaging_menu_message_new: will take control of icon object
        GIcon *icon = g_file_icon_new(icon_file);
        g_object_unref(icon_file);

        // check if source exists
        if (!messaging_menu_app_has_source(m_messaging_app.get(), m_app_name.c_str()))
            messaging_menu_app_append_source(m_messaging_app.get(), m_app_name.c_str(), nullptr, "Calendar");

        auto msg = messaging_menu_message_new(message_id.c_str(),
                                              icon,
                                              data.m_title.c_str(),
                                              nullptr,
                                              data.m_body.c_str(),
                                              data.m_start_time * G_USEC_PER_SEC); // secs -> microsecs
        if (msg)
        {
            std::shared_ptr<messaging_menu_data> msg_data(new messaging_menu_data{message_id, data.m_timeout_callback, this});
            m_messaging_messages[message_id] = msg_data;
            g_signal_connect(G_OBJECT(msg), "activate",
                             G_CALLBACK(on_message_activated), msg_data.get());
            messaging_menu_app_append_message(m_messaging_app.get(), msg, m_app_name.c_str(), false);

            // we use that to keep track of messaging, in case of message get cleared from menu
            g_object_set_data_full(G_OBJECT(msg), "destroy-notify", msg_data.get(), on_message_destroyed);
            // keep the message control with message_menu
            g_object_unref(msg);

            return message_id;
        } else {
            g_warning("Fail to create messaging menu message");
        }
        return "";
    }

    void remove (const std::string &key)
    {
        auto it = m_messaging_messages.find(key);
        if (it != m_messaging_messages.end())
        {
            // tell the server to remove message
            messaging_menu_app_remove_message_by_id(m_messaging_app.get(), it->second->msg_id.c_str());
            // message will be remove by on_message_destroyed cb.
        }
    }

    void remove_all ()
    {
        // call remove() on all our keys
        while (!m_messaging_messages.empty())
            remove(m_messaging_messages.begin()->first);
    }

private:

    const std::set<std::string>& server_caps() const
    {
        if (G_UNLIKELY(m_lazy_caps.empty()))
        {
            auto caps_gl = notify_get_server_caps();
            std::string caps_str;
            for(auto l=caps_gl; l!=nullptr; l=l->next)
            {
                m_lazy_caps.insert((const char*)l->data);

                caps_str += (const char*) l->data;;
                if (l->next != nullptr)
                    caps_str += ", ";
            }

            g_debug("%s notify_get_server() returned [%s]", G_STRFUNC, caps_str.c_str());
            g_list_free_full(caps_gl, g_free);
        }

        return m_lazy_caps;
    }

    static void on_notification_clicked (NotifyNotification * nn,
                                         char               * action,
                                         gpointer)
    {
        g_object_set_qdata_full (G_OBJECT(nn),
                                 notification_action_quark(),
                                 g_strdup(action),
                                 g_free);
    }

    static void on_notification_closed (NotifyNotification * nn, gpointer gself)
    {
        const GQuark q = notification_key_quark();
        const gpointer gkey = g_object_get_qdata(G_OBJECT(nn), q);
        static_cast<Impl*>(gself)->remove_closed_notification(GPOINTER_TO_INT(gkey));
    }

    static void on_message_activated (MessagingMenuMessage *,
                                      const char *,
                                      GVariant *,
                                      gpointer data)
    {
        auto msg_data =  static_cast<messaging_menu_data*>(data);
        auto it = msg_data->self->m_messaging_messages.find(msg_data->msg_id);
        g_return_if_fail (it != msg_data->self->m_messaging_messages.end());
        const auto& ndata = it->second;

        if (ndata->callback)
            ndata->callback();
    }

    static void on_message_destroyed(gpointer data)
    {
        auto msg_data = static_cast<messaging_menu_data*>(data);
        auto it = msg_data->self->m_messaging_messages.find(msg_data->msg_id);
        if (it != msg_data->self->m_messaging_messages.end())
            msg_data->self->m_messaging_messages.erase(it);
    }

    void remove_closed_notification (int key)
    {
        auto it = m_notifications.find(key);
        g_return_if_fail (it != m_notifications.end());

        const auto& ndata = it->second;
        auto nn = ndata.nn.get();

        if (ndata.data.m_closed_callback)
        {
            std::string action;
            const GQuark q = notification_action_quark();
            const gpointer p = g_object_get_qdata(G_OBJECT(nn), q);
            if (p != nullptr)
                action = static_cast<const char*>(p);

            ndata.data.m_closed_callback (action);
            // empty action means that the notification got timeout
            // post a message on messaging menu
            if (action.empty())
                post(ndata.data);
        }

        m_notifications.erase(it);
    }

    static std::string calendar_app_id()
    {
#ifdef LOMIRI_FEATURES_ENABLED
        auto urls = g_strsplit("calendar://", ",", 0);
        auto appids = lomiri_url_dispatch_url_appid(const_cast<const gchar**>(urls));
        g_strfreev(urls);
        std::string result;
        if (appids != nullptr) {
            // Due the use of old API by messaging_menu we need append a extra ".desktop" to the app_id.
            result = std::string(appids[0]) + ".desktop";
            g_strfreev(appids);
        }
        return result;
#else
        return std::string();
#endif
    }

    static std::string calendar_app_icon()
    {
        auto app_desktop = g_desktop_app_info_new(calendar_app_id().c_str());
        if (app_desktop != nullptr) {
            auto icon_name = g_desktop_app_info_get_string(app_desktop, "Icon");
            g_object_unref(app_desktop);
            if (icon_name) {
                std::string result(icon_name);
                g_free(icon_name);
                return result;
            }
        }
        g_warning("Fail to get calendar icon");
        return std::string();
    }

    /***
    ****
    ***/

    // messaging menu
    std::shared_ptr<MessagingMenuApp> m_messaging_app;
    std::map<std::string, std::shared_ptr<messaging_menu_data> > m_messaging_messages;

    const std::string m_app_name;

    // key-to-data
    std::map<int,notification_data> m_notifications;

    // server capabilities.
    // as the name indicates, don't use this directly: use server_caps() instead
    mutable std::set<std::string> m_lazy_caps;

    static constexpr char const * HINT_LOMIRI_TIMEOUT {"x-lomiri-snap-decisions-timeout"};
};

/***
****
***/

Engine::Engine(const std::string& app_name):
    impl(new Impl(app_name))
{
}

Engine::~Engine()
{
}

bool
Engine::supports_actions() const
{
    return impl->supports_actions();
}

int
Engine::show(const Builder& builder)
{
    return impl->show(builder);
}

void
Engine::close_all()
{
    impl->close_all();
}

void
Engine::close(int key)
{
    impl->close(key);
}

const std::string&
Engine::app_name() const
{
    return impl->app_name();
}

/***
****
***/

} // namespace notifications
} // namespace indicator
} // namespace ayatana