libsysprof-gtk: add session model/item

This makes it easy to get a session instance from inside a .ui file for
binding into listview rows.

src/libsysprof-gtk/meson.build

@@ -11,6 +11,8 @@ libsysprof_gtk_public_sources = [
   'sysprof-normalized-series-item.c',
   'sysprof-series.c',
   'sysprof-session.c',
+  'sysprof-session-model.c',
+  'sysprof-session-model-item.c',
   'sysprof-split-layer.c',
   'sysprof-time-span-layer.c',
   'sysprof-time-series.c',
@@ -37,6 +39,8 @@ libsysprof_gtk_public_headers = [
   'sysprof-normalized-series-item.h',
   'sysprof-series.h',
   'sysprof-session.h',
+  'sysprof-session-model.h',
+  'sysprof-session-model-item.h',
   'sysprof-split-layer.h',
   'sysprof-time-series.h',
   'sysprof-time-series-item.h',

src/libsysprof-gtk/sysprof-gtk.h

@@ -35,6 +35,8 @@ G_BEGIN_DECLS
 # include "sysprof-normalized-series-item.h"
 # include "sysprof-series.h"
 # include "sysprof-session.h"
+# include "sysprof-session-model.h"
+# include "sysprof-session-model-item.h"
 # include "sysprof-split-layer.h"
 # include "sysprof-time-series.h"
 # include "sysprof-time-series-item.h"

src/libsysprof-gtk/sysprof-session-model-item.c

@@ -0,0 +1,155 @@
+/* sysprof-session-model-item.c
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.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
+ */
+
+#include "config.h"
+
+#include "sysprof-session-model-item.h"
+
+struct _SysprofSessionModelItem
+{
+  GObject         parent_instance;
+  SysprofSession *session;
+  GObject        *item;
+};
+
+enum {
+  PROP_0,
+  PROP_SESSION,
+  PROP_ITEM,
+  N_PROPS
+};
+
+G_DEFINE_FINAL_TYPE (SysprofSessionModelItem, sysprof_session_model_item, G_TYPE_OBJECT)
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+sysprof_session_model_item_dispose (GObject *object)
+{
+  SysprofSessionModelItem *self = (SysprofSessionModelItem *)object;
+
+  g_clear_weak_pointer (&self->session);
+  g_clear_object (&self->item);
+
+  G_OBJECT_CLASS (sysprof_session_model_item_parent_class)->dispose (object);
+}
+
+static void
+sysprof_session_model_item_get_property (GObject    *object,
+                                         guint       prop_id,
+                                         GValue     *value,
+                                         GParamSpec *pspec)
+{
+  SysprofSessionModelItem *self = SYSPROF_SESSION_MODEL_ITEM (object);
+
+  switch (prop_id)
+    {
+    case PROP_SESSION:
+      g_value_set_object (value, sysprof_session_model_item_get_session (self));
+      break;
+
+    case PROP_ITEM:
+      g_value_set_object (value, sysprof_session_model_item_get_item (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_session_model_item_set_property (GObject      *object,
+                                         guint         prop_id,
+                                         const GValue *value,
+                                         GParamSpec   *pspec)
+{
+  SysprofSessionModelItem *self = SYSPROF_SESSION_MODEL_ITEM (object);
+
+  switch (prop_id)
+    {
+    case PROP_SESSION:
+      g_set_weak_pointer (&self->session, g_value_get_object (value));
+      break;
+
+    case PROP_ITEM:
+      self->item = g_value_dup_object (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_session_model_item_class_init (SysprofSessionModelItemClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = sysprof_session_model_item_dispose;
+  object_class->get_property = sysprof_session_model_item_get_property;
+  object_class->set_property = sysprof_session_model_item_set_property;
+
+  properties[PROP_SESSION] =
+    g_param_spec_object ("session", NULL, NULL,
+                         SYSPROF_TYPE_SESSION,
+                         (G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+  properties[PROP_ITEM] =
+    g_param_spec_object ("item", NULL, NULL,
+                         G_TYPE_OBJECT,
+                         (G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+sysprof_session_model_item_init (SysprofSessionModelItem *self)
+{
+}
+
+/**
+ * sysprof_session_model_item_get_session:
+ * @self: a #SysprofSessionModelItem
+ *
+ * Returns: (transfer none) (nullable): a #SysprofSession or %NULL
+ */
+SysprofSession *
+sysprof_session_model_item_get_session (SysprofSessionModelItem *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_SESSION_MODEL_ITEM (self), NULL);
+
+  return self->session;
+}
+
+/**
+ * sysprof_session_model_item_get_item:
+ * @self: a #SysprofSessionModelItem
+ *
+ * Gets the underlying item.
+ *
+ * Returns: (transfer none) (nullable) (type GObject): a #GObject or %NULL
+ */
+gpointer
+sysprof_session_model_item_get_item (SysprofSessionModelItem *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_SESSION_MODEL_ITEM (self), NULL);
+
+  return self->item;
+}

src/libsysprof-gtk/sysprof-session-model-item.h

@@ -0,0 +1,39 @@
+/* sysprof-session-model-item.h
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.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
+ */
+
+#pragma once
+
+#include <sysprof-analyze.h>
+
+#include "sysprof-session.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_SESSION_MODEL_ITEM (sysprof_session_model_item_get_type())
+
+SYSPROF_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (SysprofSessionModelItem, sysprof_session_model_item, SYSPROF, SESSION_MODEL_ITEM, GObject)
+
+SYSPROF_AVAILABLE_IN_ALL
+SysprofSession *sysprof_session_model_item_get_session (SysprofSessionModelItem *self);
+SYSPROF_AVAILABLE_IN_ALL
+gpointer        sysprof_session_model_item_get_item    (SysprofSessionModelItem *self);
+
+G_END_DECLS

src/libsysprof-gtk/sysprof-session-model.c

@@ -0,0 +1,254 @@
+/* sysprof-session-model.c
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.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
+ */
+
+#include "config.h"
+
+#include "sysprof-session-model.h"
+#include "sysprof-session-model-item.h"
+
+struct _SysprofSessionModel
+{
+  GObject         parent_instance;
+  GListModel     *model;
+  SysprofSession *session;
+};
+
+enum {
+  PROP_0,
+  PROP_MODEL,
+  PROP_SESSION,
+  N_PROPS
+};
+
+static GType
+sysprof_session_model_get_item_type (GListModel *model)
+{
+  return G_TYPE_OBJECT;
+}
+
+static gpointer
+sysprof_session_model_get_item (GListModel *model,
+                                guint       position)
+{
+  SysprofSessionModel *self = SYSPROF_SESSION_MODEL (model);
+  g_autoptr(GObject) item = NULL;
+
+  if (self->model == NULL)
+    return NULL;
+
+  if ((item = g_list_model_get_item (self->model, position)))
+    return g_object_new (SYSPROF_TYPE_SESSION_MODEL_ITEM,
+                         "session", self->session,
+                         "item", item,
+                         NULL);
+
+  return NULL;
+}
+
+static guint
+sysprof_session_model_get_n_items (GListModel *model)
+{
+  SysprofSessionModel *self = SYSPROF_SESSION_MODEL (model);
+
+  if (self->model == NULL)
+    return 0;
+
+  return g_list_model_get_n_items (self->model);
+}
+
+static void
+list_model_iface_init (GListModelInterface *iface)
+{
+  iface->get_item_type = sysprof_session_model_get_item_type;
+  iface->get_n_items = sysprof_session_model_get_n_items;
+  iface->get_item = sysprof_session_model_get_item;
+}
+
+G_DEFINE_FINAL_TYPE_WITH_CODE (SysprofSessionModel, sysprof_session_model, G_TYPE_OBJECT,
+                               G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+sysprof_session_model_dispose (GObject *object)
+{
+  SysprofSessionModel *self = (SysprofSessionModel *)object;
+
+  g_clear_object (&self->session);
+  g_clear_object (&self->model);
+
+  G_OBJECT_CLASS (sysprof_session_model_parent_class)->dispose (object);
+}
+
+static void
+sysprof_session_model_get_property (GObject    *object,
+                                    guint       prop_id,
+                                    GValue     *value,
+                                    GParamSpec *pspec)
+{
+  SysprofSessionModel *self = SYSPROF_SESSION_MODEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_SESSION:
+      g_value_set_object (value, sysprof_session_model_get_session (self));
+      break;
+
+    case PROP_MODEL:
+      g_value_set_object (value, sysprof_session_model_get_model (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_session_model_set_property (GObject      *object,
+                                    guint         prop_id,
+                                    const GValue *value,
+                                    GParamSpec   *pspec)
+{
+  SysprofSessionModel *self = SYSPROF_SESSION_MODEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_MODEL:
+      sysprof_session_model_set_model (self, g_value_get_object (value));
+      break;
+
+    case PROP_SESSION:
+      sysprof_session_model_set_session (self, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_session_model_class_init (SysprofSessionModelClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = sysprof_session_model_dispose;
+  object_class->get_property = sysprof_session_model_get_property;
+  object_class->set_property = sysprof_session_model_set_property;
+
+  properties [PROP_MODEL] =
+    g_param_spec_object ("model", NULL, NULL,
+                         G_TYPE_LIST_MODEL,
+                         (G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
+
+  properties [PROP_SESSION] =
+    g_param_spec_object ("session", NULL, NULL,
+                         SYSPROF_TYPE_SESSION,
+                         (G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+sysprof_session_model_init (SysprofSessionModel *self)
+{
+}
+
+SysprofSessionModel *
+sysprof_session_model_new (SysprofSession *session,
+                           GListModel     *model)
+{
+  g_return_val_if_fail (!session || SYSPROF_IS_SESSION (session), NULL);
+  g_return_val_if_fail (!model || G_IS_LIST_MODEL (model), NULL);
+
+  return g_object_new (SYSPROF_TYPE_SESSION_MODEL,
+                       "session", session,
+                       "model", model,
+                       NULL);
+}
+
+/**
+ * sysprof_model_model_get_model:
+ * @self: a #SysprofSessionModel
+ *
+ * Returns: (transfer none) (nullable): a #GListModel or %NULL
+ */
+GListModel *
+sysprof_session_model_get_model (SysprofSessionModel *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_SESSION_MODEL (self), NULL);
+
+  return self->model;
+}
+
+void
+sysprof_session_model_set_model (SysprofSessionModel *self,
+                                 GListModel          *model)
+{
+  guint old_len = 0;
+  guint new_len = 0;
+
+  g_return_if_fail (SYSPROF_IS_SESSION_MODEL (self));
+  g_return_if_fail (!model || G_IS_LIST_MODEL (model));
+
+  if (self->model == model)
+    return;
+
+  if (self->model)
+    {
+      old_len = g_list_model_get_n_items (G_LIST_MODEL (self->model));
+      g_clear_object (&self->model);
+    }
+
+  if (model)
+    {
+      self->model = g_object_ref (model);
+      new_len = g_list_model_get_n_items (model);
+    }
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
+
+  if (old_len || new_len)
+    g_list_model_items_changed (G_LIST_MODEL (self), 0, old_len, new_len);
+}
+
+/**
+ * sysprof_session_model_get_session:
+ * @self: a #SysprofSessionModel
+ *
+ * Returns: (transfer none) (nullable): a #SysprofSession or %NULL
+ */
+SysprofSession *
+sysprof_session_model_get_session (SysprofSessionModel *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_SESSION_MODEL (self), NULL);
+
+  return self->session;
+}
+
+void
+sysprof_session_model_set_session (SysprofSessionModel *self,
+                                   SysprofSession      *session)
+{
+  g_return_if_fail (SYSPROF_IS_SESSION_MODEL (self));
+  g_return_if_fail (!session || SYSPROF_IS_SESSION (session));
+
+  if (g_set_object (&self->session, session))
+    g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SESSION]);
+}

src/libsysprof-gtk/sysprof-session-model.h

@@ -0,0 +1,48 @@
+/* sysprof-session-model.h
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.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
+ */
+
+#pragma once
+
+#include <sysprof-analyze.h>
+
+#include "sysprof-session.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_SESSION_MODEL (sysprof_session_model_get_type())
+
+SYSPROF_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (SysprofSessionModel, sysprof_session_model, SYSPROF, SESSION_MODEL, GObject)
+
+SYSPROF_AVAILABLE_IN_ALL
+SysprofSessionModel *sysprof_session_model_new         (SysprofSession      *session,
+                                                        GListModel          *model);
+SYSPROF_AVAILABLE_IN_ALL
+GListModel          *sysprof_session_model_get_model   (SysprofSessionModel *self);
+SYSPROF_AVAILABLE_IN_ALL
+void                 sysprof_session_model_set_model   (SysprofSessionModel *self,
+                                                        GListModel          *model);
+SYSPROF_AVAILABLE_IN_ALL
+SysprofSession      *sysprof_session_model_get_session (SysprofSessionModel *self);
+SYSPROF_AVAILABLE_IN_ALL
+void                 sysprof_session_model_set_session (SysprofSessionModel *self,
+                                                        SysprofSession      *session);
+
+G_END_DECLS