Import Upstream version 43.0upstream/latest

1 files changed, 216 insertions, 0 deletions

diff --git a/src/models/gtd-task-model.c b/src/models/gtd-task-model.c
new file mode 100644
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+++ b/src/models/gtd-task-model.c
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+/* gtd-task-model.c
+ *
+ * Copyright 2018 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#define G_LOG_DOMAIN "GtdTaskModel"
+
+#include "gtd-debug.h"
+#include "gtd-list-store.h"
+#include "gtd-manager.h"
+#include "gtd-task.h"
+#include "gtd-task-list.h"
+#include "gtd-task-model.h"
+#include "gtd-task-model-private.h"
+
+struct _GtdTaskModel
+{
+  GObject             parent;
+
+  GtkFlattenListModel *model;
+
+  guint               number_of_tasks;
+
+  GtdManager         *manager;
+};
+
+static void          g_list_model_iface_init                     (GListModelInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GtdTaskModel, gtd_task_model, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, g_list_model_iface_init))
+
+enum
+{
+  PROP_0,
+  PROP_MANAGER,
+  N_PROPS
+};
+
+static GParamSpec *properties [N_PROPS];
+
+
+/*
+ * Callbacks
+ */
+
+static void
+on_model_items_changed_cb (GListModel   *model,
+                           guint         position,
+                           guint         n_removed,
+                           guint         n_added,
+                           GtdTaskModel *self)
+{
+  GTD_TRACE_MSG ("Child model changed with position=%u, n_removed=%u, n_added=%u", position, n_removed, n_added);
+
+  g_list_model_items_changed (G_LIST_MODEL (self), position, n_removed, n_added);
+}
+
+
+/*
+ * GListModel iface
+ */
+
+static gpointer
+gtd_task_model_get_item (GListModel *model,
+                         guint       position)
+{
+  GtdTaskModel *self = (GtdTaskModel*) model;
+
+  return g_list_model_get_item (G_LIST_MODEL (self->model), position);
+}
+
+static guint
+gtd_task_model_get_n_items (GListModel *model)
+{
+  GtdTaskModel *self = (GtdTaskModel*) model;
+
+  return g_list_model_get_n_items (G_LIST_MODEL (self->model));
+}
+
+static GType
+gtd_task_model_get_item_type (GListModel *model)
+{
+  return GTD_TYPE_TASK;
+}
+
+static void
+g_list_model_iface_init (GListModelInterface *iface)
+{
+  iface->get_item = gtd_task_model_get_item;
+  iface->get_n_items = gtd_task_model_get_n_items;
+  iface->get_item_type = gtd_task_model_get_item_type;
+}
+
+
+/*
+ * GObject overrides
+ */
+
+static void
+gtd_task_model_finalize (GObject *object)
+{
+  GtdTaskModel *self = (GtdTaskModel *)object;
+
+  g_clear_object (&self->manager);
+  g_clear_object (&self->model);
+
+  G_OBJECT_CLASS (gtd_task_model_parent_class)->finalize (object);
+}
+
+
+static void
+gtd_task_model_constructed (GObject *object)
+{
+  GtdTaskModel *self = (GtdTaskModel *)object;
+  GListModel *model;
+
+  g_assert (self->manager != NULL);
+
+  model = gtd_manager_get_task_lists_model (self->manager);
+
+  g_signal_connect_object (self->model,
+                           "items-changed",
+                           G_CALLBACK (on_model_items_changed_cb),
+                           self,
+                           0);
+  gtk_flatten_list_model_set_model (self->model, model);
+
+  G_OBJECT_CLASS (gtd_task_model_parent_class)->constructed (object);
+}
+
+static void
+gtd_task_model_get_property (GObject    *object,
+                             guint       prop_id,
+                             GValue     *value,
+                             GParamSpec *pspec)
+{
+  GtdTaskModel *self = GTD_TASK_MODEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_MANAGER:
+      g_value_set_object (value, self->manager);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gtd_task_model_set_property (GObject      *object,
+                             guint         prop_id,
+                             const GValue *value,
+                             GParamSpec   *pspec)
+{
+  GtdTaskModel *self = GTD_TASK_MODEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_MANAGER:
+      g_assert (self->manager == NULL);
+      self->manager = g_value_dup_object (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gtd_task_model_class_init (GtdTaskModelClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gtd_task_model_finalize;
+  object_class->constructed = gtd_task_model_constructed;
+  object_class->get_property = gtd_task_model_get_property;
+  object_class->set_property = gtd_task_model_set_property;
+
+  properties[PROP_MANAGER] = g_param_spec_object ("manager",
+                                                  "Manager",
+                                                  "Manager",
+                                                  GTD_TYPE_MANAGER,
+                                                  G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+gtd_task_model_init (GtdTaskModel *self)
+{
+  self->model = gtk_flatten_list_model_new (NULL);
+}
+
+GtdTaskModel*
+_gtd_task_model_new (GtdManager *manager)
+{
+  return g_object_new (GTD_TYPE_TASK_MODEL,
+                       "manager", manager,
+                       NULL);
+}