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Diffstat (limited to 'src/planner-eds.cpp')
| -rw-r--r-- | src/planner-eds.cpp | 421 |
1 files changed, 421 insertions, 0 deletions
diff --git a/src/planner-eds.cpp b/src/planner-eds.cpp new file mode 100644 index 0000000..54332ce --- /dev/null +++ b/src/planner-eds.cpp @@ -0,0 +1,421 @@ +/* + * Copyright 2013 Canonical Ltd. + * + * 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> + */ + +#include <datetime/planner-eds.h> + +#include <datetime/appointment.h> + +#include <libical/ical.h> +#include <libical/icaltime.h> +#include <libecal/libecal.h> +#include <libedataserver/libedataserver.h> + +namespace unity { +namespace indicator { +namespace datetime { + +/**** +***** +****/ + +G_DEFINE_QUARK("source-client", source_client) + + +class PlannerEds::Impl +{ +public: + + Impl(PlannerEds& owner): + m_owner(owner), + m_cancellable(g_cancellable_new()) + { + e_source_registry_new(m_cancellable, on_source_registry_ready, this); + + m_owner.time.changed().connect([this](const DateTime& dt) { + g_debug("planner's datetime property changed to %s; calling rebuildSoon()", dt.format("%F %T").c_str()); + rebuildSoon(); + }); + + rebuildSoon(); + } + + ~Impl() + { + g_cancellable_cancel(m_cancellable); + g_clear_object(&m_cancellable); + + if (m_rebuild_tag) + g_source_remove(m_rebuild_tag); + + if (m_source_registry) + g_signal_handlers_disconnect_by_data(m_source_registry, this); + g_clear_object(&m_source_registry); + } + +private: + + static void on_source_registry_ready(GObject* /*source*/, GAsyncResult* res, gpointer gself) + { + GError * error = nullptr; + auto r = e_source_registry_new_finish(res, &error); + if (error != nullptr) + { + if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) + g_warning("indicator-datetime cannot show EDS appointments: %s", error->message); + + g_error_free(error); + } + else + { + auto self = static_cast<Impl*>(gself); + + g_signal_connect(r, "source-added", G_CALLBACK(on_source_added), self); + g_signal_connect(r, "source-removed", G_CALLBACK(on_source_removed), self); + g_signal_connect(r, "source-changed", G_CALLBACK(on_source_changed), self); + g_signal_connect(r, "source-disabled", G_CALLBACK(on_source_disabled), self); + g_signal_connect(r, "source-enabled", G_CALLBACK(on_source_enabled), self); + + self->m_source_registry = r; + + GList* sources = e_source_registry_list_sources(r, E_SOURCE_EXTENSION_CALENDAR); + for (auto l=sources; l!=nullptr; l=l->next) + on_source_added(r, E_SOURCE(l->data), gself); + g_list_free_full(sources, g_object_unref); + } + } + + static void on_source_added(ESourceRegistry* registry, ESource* source, gpointer gself) + { + auto self = static_cast<PlannerEds::Impl*>(gself); + + self->m_sources.insert(E_SOURCE(g_object_ref(source))); + + if (e_source_get_enabled(source)) + on_source_enabled(registry, source, gself); + } + + static void on_source_enabled(ESourceRegistry* /*registry*/, ESource* source, gpointer gself) + { + auto self = static_cast<PlannerEds::Impl*>(gself); + + e_cal_client_connect(source, + E_CAL_CLIENT_SOURCE_TYPE_EVENTS, + self->m_cancellable, + on_client_connected, + gself); + } + + static void on_client_connected(GObject* /*source*/, GAsyncResult * res, gpointer gself) + { + GError * error = nullptr; + EClient * client = e_cal_client_connect_finish(res, &error); + if (error) + { + if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) + g_warning("indicator-datetime cannot connect to EDS source: %s", error->message); + + g_error_free(error); + } + else + { + // we've got a new connected ECalClient, so store it & notify clients + g_object_set_qdata_full(G_OBJECT(e_client_get_source(client)), + source_client_quark(), + client, + g_object_unref); + + g_debug("client connected; calling rebuildSoon()"); + static_cast<Impl*>(gself)->rebuildSoon(); + } + } + + static void on_source_disabled(ESourceRegistry* /*registry*/, ESource* source, gpointer gself) + { + gpointer e_cal_client; + + // if this source has a connected ECalClient, remove it & notify clients + if ((e_cal_client = g_object_steal_qdata(G_OBJECT(source), source_client_quark()))) + { + g_object_unref(e_cal_client); + + g_debug("source disabled; calling rebuildSoon()"); + static_cast<Impl*>(gself)->rebuildSoon(); + } + } + + static void on_source_removed(ESourceRegistry* registry, ESource* source, gpointer gself) + { + auto self = static_cast<PlannerEds::Impl*>(gself); + + on_source_disabled(registry, source, gself); + + self->m_sources.erase(source); + g_object_unref(source); + } + + static void on_source_changed(ESourceRegistry* /*registry*/, ESource* /*source*/, gpointer gself) + { + g_debug("source changed; calling rebuildSoon()"); + static_cast<Impl*>(gself)->rebuildSoon(); + } + +private: + + typedef std::function<void(const std::vector<Appointment>&)> appointment_func; + + struct Task + { + Impl* p; + appointment_func func; + std::vector<Appointment> appointments; + Task(Impl* p_in, const appointment_func& func_in): p(p_in), func(func_in) {} + }; + + struct AppointmentSubtask + { + std::shared_ptr<Task> task; + ECalClient* client; + std::string color; + AppointmentSubtask(const std::shared_ptr<Task>& task_in, ECalClient* client_in, const char* color_in): + task(task_in), client(client_in), color(color_in) {} + }; + + void rebuildSoon() + { + const static guint ARBITRARY_INTERVAL_SECS = 2; + + if (m_rebuild_tag == 0) + m_rebuild_tag = g_timeout_add_seconds(ARBITRARY_INTERVAL_SECS, rebuildNowStatic, this); + } + + static gboolean rebuildNowStatic(gpointer gself) + { + auto self = static_cast<Impl*>(gself); + self->m_rebuild_tag = 0; + self->rebuildNow(); + return G_SOURCE_REMOVE; + } + + void rebuildNow() + { + auto calendar_date = m_owner.time.get().get(); + GDateTime* begin; + GDateTime* end; + int y, m, d; + + // get all the appointments in the calendar month + g_date_time_get_ymd(calendar_date, &y, &m, &d); + begin = g_date_time_new_local(y, m, 1, 0, 0, 0.1); + end = g_date_time_new_local(y, m, g_date_get_days_in_month(GDateMonth(m),GDateYear(y)), 23, 59, 59.9); + if (begin && end) + { + getAppointments(begin, end, [this](const std::vector<Appointment>& appointments) { + g_debug("got %d appointments in this calendar month", (int)appointments.size()); + m_owner.thisMonth.set(appointments); + }); + } + g_clear_pointer(&begin, g_date_time_unref); + g_clear_pointer(&end, g_date_time_unref); + + // get the upcoming appointments + begin = g_date_time_ref(calendar_date); + end = g_date_time_add_months(begin, 1); + if (begin && end) + { + getAppointments(begin, end, [this](const std::vector<Appointment>& appointments) { + g_debug("got %d upcoming appointments", (int)appointments.size()); + m_owner.upcoming.set(appointments); + }); + } + g_clear_pointer(&begin, g_date_time_unref); + g_clear_pointer(&end, g_date_time_unref); + g_clear_pointer(&calendar_date, g_date_time_unref); + } + + void getAppointments(GDateTime* begin_dt, GDateTime* end_dt, appointment_func func) + { + const auto begin = g_date_time_to_unix(begin_dt); + const auto end = g_date_time_to_unix(end_dt); + g_debug("getting all appointments from [%s ... %s]", g_date_time_format(begin_dt, "%F %T"), + g_date_time_format(end_dt, "%F %T")); + + /** + *** init the default timezone + **/ + + icaltimezone * default_timezone = nullptr; + + const auto tz = g_date_time_get_timezone_abbreviation(m_owner.time.get().get()); + g_debug("%s tz is %s", G_STRLOC, tz); + if (tz && *tz) + { + default_timezone = icaltimezone_get_builtin_timezone(tz); + + if (default_timezone == nullptr) // maybe str is a tzid? + default_timezone = icaltimezone_get_builtin_timezone_from_tzid(tz); + + g_debug("default_timezone is %p", (void*)default_timezone); + } + + /** + *** walk through the sources to build the appointment list + **/ + + std::shared_ptr<Task> main_task(new Task(this, func), [](Task* task){ + g_debug("time to delete task %p", (void*)task); + task->func(task->appointments); + }); + + for (auto& source : m_sources) + { + auto client = E_CAL_CLIENT(g_object_get_qdata(G_OBJECT(source), source_client_quark())); + if (client == nullptr) + continue; + + if (default_timezone != nullptr) + e_cal_client_set_default_timezone(client, default_timezone); + + // start a new subtask to enumerate all the components in this client. + auto extension = e_source_get_extension(source, E_SOURCE_EXTENSION_CALENDAR); + const auto color = e_source_selectable_get_color(E_SOURCE_SELECTABLE(extension)); + g_debug("calling e_cal_client_generate_instances for %p", (void*)client); + e_cal_client_generate_instances(client, + begin, + end, + m_cancellable, + my_get_appointments_foreach, + new AppointmentSubtask (main_task, client, color), + [](gpointer g){delete static_cast<AppointmentSubtask*>(g);}); + } + } + + struct UrlSubtask + { + std::shared_ptr<Task> task; + Appointment appointment; + UrlSubtask(const std::shared_ptr<Task>& task_in, const Appointment& appointment_in): + task(task_in), appointment(appointment_in) {} + }; + + static gboolean + my_get_appointments_foreach(ECalComponent* component, + time_t begin, + time_t end, + gpointer gsubtask) + { + const auto vtype = e_cal_component_get_vtype(component); + auto subtask = static_cast<AppointmentSubtask*>(gsubtask); + + if ((vtype == E_CAL_COMPONENT_EVENT) || (vtype == E_CAL_COMPONENT_TODO)) + { + const gchar* uid = nullptr; + e_cal_component_get_uid(component, &uid); + + auto status = ICAL_STATUS_NONE; + e_cal_component_get_status(component, &status); + + if ((uid != nullptr) && + (status != ICAL_STATUS_COMPLETED) && + (status != ICAL_STATUS_CANCELLED)) + { + Appointment appointment; + + /* Determine whether this is a recurring event. + NB: icalrecurrencetype supports complex recurrence patterns; + however, since design only allows daily recurrence, + that's all we support here. */ + GSList * recur_list; + e_cal_component_get_rrule_list(component, &recur_list); + for (auto l=recur_list; l!=nullptr; l=l->next) + { + const auto recur = static_cast<struct icalrecurrencetype*>(l->data); + appointment.is_daily |= ((recur->freq == ICAL_DAILY_RECURRENCE) + && (recur->interval == 1)); + } + e_cal_component_free_recur_list(recur_list); + + ECalComponentText text; + text.value = ""; + e_cal_component_get_summary(component, &text); + + appointment.begin = g_date_time_new_from_unix_local(begin); + appointment.end = g_date_time_new_from_unix_local(end); + appointment.color = subtask->color; + appointment.is_event = vtype == E_CAL_COMPONENT_EVENT; + appointment.summary = text.value; + appointment.uid = uid; + + GList * alarm_uids = e_cal_component_get_alarm_uids(component); + appointment.has_alarms = alarm_uids != nullptr; + cal_obj_uid_list_free(alarm_uids); + + e_cal_client_get_attachment_uris(subtask->client, + uid, + nullptr, + subtask->task->p->m_cancellable, + on_appointment_uris_ready, + new UrlSubtask(subtask->task, appointment)); + } + } + + return G_SOURCE_CONTINUE; + } + + static void on_appointment_uris_ready(GObject* client, GAsyncResult* res, gpointer gsubtask) + { + auto subtask = static_cast<UrlSubtask*>(gsubtask); + + GSList * uris = nullptr; + GError * error = nullptr; + e_cal_client_get_attachment_uris_finish(E_CAL_CLIENT(client), res, &uris, &error); + if (error != nullptr) + { + if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) + g_warning("Error getting appointment uris: %s", error->message); + + g_error_free(error); + } + else if (uris != nullptr) + { + subtask->appointment.url = (const char*) uris->data; // copy the first URL + g_debug("found url '%s' for appointment '%s'", subtask->appointment.url.c_str(), subtask->appointment.summary.c_str()); + e_client_util_free_string_slist(uris); + } + + g_debug("adding appointment '%s' '%s'", subtask->appointment.summary.c_str(), subtask->appointment.url.c_str()); + subtask->task->appointments.push_back(subtask->appointment); + delete subtask; + } + +private: + + PlannerEds& m_owner; + std::set<ESource*> m_sources; + GCancellable * m_cancellable = nullptr; + ESourceRegistry * m_source_registry = nullptr; + guint m_rebuild_tag = 0; +}; + +PlannerEds::PlannerEds(): p(new Impl(*this)) {} + +PlannerEds::~PlannerEds() =default; + +} // namespace datetime +} // namespace indicator +} // namespace unity |