[sysprof/wip/chergert/sysprof-3] libsysprof-ui: start on capture view



commit 89b50d3345a298867f8fca34033166e0966eb9c0
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 13 18:59:03 2019 -0700

    libsysprof-ui: start on capture view
    
    This widget is going to allow us to remove most of SysprofWindow into a
    reusable widget tos hare with Builder.

 src/libsysprof-ui/libsysprof-ui.gresource.xml |   1 +
 src/libsysprof-ui/meson.build                 |   2 +
 src/libsysprof-ui/sysprof-capture-view.c      | 578 ++++++++++++++++++++++++++
 src/libsysprof-ui/sysprof-capture-view.h      |  67 +++
 src/libsysprof-ui/sysprof-ui.h                |   1 +
 src/libsysprof-ui/ui/sysprof-capture-view.ui  |  71 ++++
 src/tests/meson.build                         |   5 +
 src/tests/test-capture-view.c                 |  63 +++
 8 files changed, 788 insertions(+)
---
diff --git a/src/libsysprof-ui/libsysprof-ui.gresource.xml b/src/libsysprof-ui/libsysprof-ui.gresource.xml
index bfe1620..1922070 100644
--- a/src/libsysprof-ui/libsysprof-ui.gresource.xml
+++ b/src/libsysprof-ui/libsysprof-ui.gresource.xml
@@ -10,6 +10,7 @@
     <file 
alias="icons/symbolic/apps/org.gnome.Sysprof-symbolic.svg">../../data/icons/symbolic/apps/org.gnome.Sysprof-symbolic.svg</file>
 
     <file preprocess="xml-stripblanks">ui/sysprof-callgraph-view.ui</file>
+    <file preprocess="xml-stripblanks">ui/sysprof-capture-view.ui</file>
     <file preprocess="xml-stripblanks">ui/sysprof-empty-state-view.ui</file>
     <file preprocess="xml-stripblanks">ui/sysprof-failed-state-view.ui</file>
     <file preprocess="xml-stripblanks">ui/sysprof-marks-view.ui</file>
diff --git a/src/libsysprof-ui/meson.build b/src/libsysprof-ui/meson.build
index dac463c..9fea876 100644
--- a/src/libsysprof-ui/meson.build
+++ b/src/libsysprof-ui/meson.build
@@ -1,4 +1,5 @@
 libsysprof_ui_public_sources = [
+  'sysprof-capture-view.c',
   'sysprof-callgraph-view.c',
   'sysprof-color-cycle.c',
   'sysprof-cpu-visualizer-row.c',
@@ -30,6 +31,7 @@ libsysprof_ui_private_sources = [
 ]
 
 libsysprof_ui_public_headers = [
+  'sysprof-capture-view.h',
   'sysprof-callgraph-view.h',
   'sysprof-cell-renderer-percent.h',
   'sysprof-cpu-visualizer-row.h',
diff --git a/src/libsysprof-ui/sysprof-capture-view.c b/src/libsysprof-ui/sysprof-capture-view.c
new file mode 100644
index 0000000..5d2b903
--- /dev/null
+++ b/src/libsysprof-ui/sysprof-capture-view.c
@@ -0,0 +1,578 @@
+/* sysprof-capture-view.c
+ *
+ * Copyright 2019 Christian Hergert <unknown domain org>
+ *
+ * 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 "sysprof-capture-view"
+
+#include "config.h"
+
+#include "sysprof-callgraph-view.h"
+#include "sysprof-capture-view.h"
+#include "sysprof-marks-view.h"
+#include "sysprof-zoom-manager.h"
+
+typedef struct
+{
+  gint64 begin_time;
+  gint64 end_time;
+  guint has_samples : 1;
+  guint has_counters : 1;
+  guint has_marks : 1;
+} SysprofCaptureFeatures;
+
+typedef struct
+{
+  SysprofCaptureReader   *reader;
+  GCancellable           *cancellable;
+
+  SysprofCaptureFeatures  features;
+
+  /* Template Objects */
+  SysprofCallgraphView   *callgraph_view;
+  SysprofMarksView       *marks_view;
+  SysprofZoomManager     *zoom_manager;
+
+  guint                   busy;
+} SysprofCaptureViewPrivate;
+
+typedef struct
+{
+  SysprofCaptureReader *reader;
+  gint n_active;
+  guint has_error : 1;
+} LoadAsync;
+
+G_DEFINE_TYPE_WITH_PRIVATE (SysprofCaptureView, sysprof_capture_view, GTK_TYPE_BIN)
+
+enum {
+  PROP_0,
+  PROP_BUSY,
+  N_PROPS
+};
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+load_async_free (gpointer data)
+{
+  LoadAsync *state = data;
+
+  if (state != NULL)
+    {
+      g_clear_pointer (&state->reader, sysprof_capture_reader_unref);
+      g_slice_free (LoadAsync, state);
+    }
+}
+
+/**
+ * sysprof_capture_view_new:
+ *
+ * Create a new #SysprofCaptureView.
+ *
+ * Returns: (transfer full): a newly created #SysprofCaptureView
+ *
+ * Since: 3.34
+ */
+GtkWidget *
+sysprof_capture_view_new (void)
+{
+  return g_object_new (SYSPROF_TYPE_CAPTURE_VIEW, NULL);
+}
+
+static void
+sysprof_capture_view_task_completed (SysprofCaptureView *self,
+                                     GParamSpec         *pspec,
+                                     GTask              *task)
+{
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (task));
+
+  g_signal_handlers_disconnect_by_func (task,
+                                        G_CALLBACK (sysprof_capture_view_task_completed),
+                                        self);
+
+  priv->busy--;
+
+  if (priv->busy == 0)
+    g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_BUSY]);
+}
+
+static void
+sysprof_capture_view_monitor_task (SysprofCaptureView *self,
+                                   GTask              *task)
+{
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (task));
+
+  priv->busy++;
+
+  if (priv->busy == 1)
+    g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_BUSY]);
+
+  g_signal_connect_object (task,
+                           "notify::completed",
+                           G_CALLBACK (sysprof_capture_view_task_completed),
+                           self,
+                           G_CONNECT_SWAPPED);
+}
+
+static void
+sysprof_capture_view_generate_callgraph_cb (GObject      *object,
+                                            GAsyncResult *result,
+                                            gpointer      user_data)
+{
+  SysprofCallgraphProfile *callgraph = (SysprofCallgraphProfile *)object;
+  g_autoptr(GError) error = NULL;
+  g_autoptr(GTask) task = user_data;
+
+  g_assert (SYSPROF_IS_CALLGRAPH_PROFILE (callgraph));
+  g_assert (G_IS_ASYNC_RESULT (result));
+  g_assert (G_IS_TASK (task));
+
+  if (!sysprof_profile_generate_finish (SYSPROF_PROFILE (callgraph), result, &error))
+    {
+      g_task_return_error (task, g_steal_pointer (&error));
+    }
+  else
+    {
+      SysprofCaptureView *self = g_task_get_source_object (task);
+      SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+
+      sysprof_callgraph_view_set_profile (priv->callgraph_view, callgraph);
+      g_task_return_boolean (task, TRUE);
+    }
+}
+
+static void
+sysprof_capture_view_generate_callgraph_async (SysprofCaptureView   *self,
+                                               SysprofCaptureReader *reader,
+                                               SysprofSelection     *selection,
+                                               GCancellable         *cancellable,
+                                               GAsyncReadyCallback   callback,
+                                               gpointer              user_data)
+{
+  g_autoptr(SysprofCaptureReader) copy = NULL;
+  g_autoptr(SysprofProfile) callgraph = NULL;
+  g_autoptr(GTask) task = NULL;
+
+  g_return_if_fail (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_return_if_fail (reader != NULL);
+  g_return_if_fail (!selection || SYSPROF_IS_SELECTION (selection));
+  g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_set_source_tag (task, sysprof_capture_view_generate_callgraph_async);
+  sysprof_capture_view_monitor_task (self, task);
+
+  copy = sysprof_capture_reader_copy (reader);
+  callgraph = sysprof_callgraph_profile_new_with_selection (selection);
+  sysprof_profile_set_reader (callgraph, copy);
+  sysprof_profile_generate (callgraph,
+                            cancellable,
+                            sysprof_capture_view_generate_callgraph_cb,
+                            g_steal_pointer (&task));
+}
+
+static gboolean
+sysprof_capture_view_generate_callgraph_finish (SysprofCaptureView  *self,
+                                                GAsyncResult        *result,
+                                                GError             **error)
+{
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (result));
+
+  return g_task_propagate_boolean (G_TASK (result), error);
+}
+
+static void
+sysprof_capture_view_scan_worker (GTask        *task,
+                                  gpointer      source_object,
+                                  gpointer      task_data,
+                                  GCancellable *cancellable)
+{
+  SysprofCaptureView *self = source_object;
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+  SysprofCaptureReader *reader = task_data;
+  SysprofCaptureFeatures features = {0};
+  SysprofCaptureFrame frame;
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (task));
+  g_assert (reader != NULL);
+  g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  features.begin_time = sysprof_capture_reader_get_start_time (reader);
+  features.end_time = sysprof_capture_reader_get_end_time (reader);
+
+  while (sysprof_capture_reader_peek_frame (reader, &frame))
+    {
+      gint64 begin_time = frame.time;
+      gint64 end_time = G_MININT64;
+
+      if (frame.type == SYSPROF_CAPTURE_FRAME_MARK)
+        {
+          const SysprofCaptureMark *mark;
+          if ((mark = sysprof_capture_reader_read_mark (reader)))
+            end_time = frame.time + mark->duration;
+
+          features.has_marks = TRUE;
+        }
+      else if (frame.type == SYSPROF_CAPTURE_FRAME_CTRDEF)
+        {
+          features.has_counters = TRUE;
+          sysprof_capture_reader_skip (reader);
+        }
+      else if (frame.type == SYSPROF_CAPTURE_FRAME_SAMPLE)
+        {
+          features.has_samples = TRUE;
+          sysprof_capture_reader_skip (reader);
+        }
+      else
+        {
+          sysprof_capture_reader_skip (reader);
+        }
+
+      if (begin_time < features.begin_time)
+        features.begin_time = begin_time;
+
+      if (end_time < features.end_time)
+        features.end_time = end_time;
+    }
+
+  if (!g_task_return_error_if_cancelled (task))
+    {
+      priv->features = features;
+      sysprof_capture_reader_reset (reader);
+      g_task_return_boolean (task, TRUE);
+    }
+}
+
+static void
+sysprof_capture_view_scan_async (SysprofCaptureView   *self,
+                                 SysprofCaptureReader *reader,
+                                 GCancellable         *cancellable,
+                                 GAsyncReadyCallback   callback,
+                                 gpointer              user_data)
+{
+  g_autoptr(GTask) task = NULL;
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (reader != NULL);
+  g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_set_source_tag (task, sysprof_capture_view_scan_async);
+  g_task_set_task_data (task,
+                        sysprof_capture_reader_ref (reader),
+                        (GDestroyNotify) sysprof_capture_reader_unref);
+  sysprof_capture_view_monitor_task (self, task);
+  g_task_run_in_thread (task, sysprof_capture_view_scan_worker);
+}
+
+static gboolean
+sysprof_capture_view_scan_finish (SysprofCaptureView  *self,
+                                  GAsyncResult        *result,
+                                  GError             **error)
+{
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (result));
+
+  return g_task_propagate_boolean (G_TASK (result), error);
+}
+
+static void
+sysprof_capture_view_load_callgraph_cb (GObject      *object,
+                                        GAsyncResult *result,
+                                        gpointer      user_data)
+{
+  SysprofCaptureView *self = (SysprofCaptureView *)object;
+  g_autoptr(GError) error = NULL;
+  g_autoptr(GTask) task = user_data;
+  LoadAsync *state;
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_ASYNC_RESULT (result));
+  g_assert (G_IS_TASK (task));
+
+  state = g_task_get_task_data (task);
+  g_assert (state != NULL);
+  g_assert (state->reader != NULL);
+  g_assert (state->n_active > 0);
+
+  state->n_active--;
+
+  if (!sysprof_capture_view_generate_callgraph_finish (self, result, &error))
+    {
+      if (!state->has_error)
+        {
+          state->has_error = TRUE;
+          g_task_return_error (task, g_steal_pointer (&error));
+        }
+
+      return;
+    }
+
+  if (state->n_active == 0)
+    g_task_return_boolean (task, TRUE);
+}
+
+static void
+sysprof_capture_view_load_scan_cb (GObject      *object,
+                                   GAsyncResult *result,
+                                   gpointer      user_data)
+{
+  SysprofCaptureView *self = (SysprofCaptureView *)object;
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+  g_autoptr(GTask) task = user_data;
+  g_autoptr(GError) error = NULL;
+  LoadAsync *state;
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_ASYNC_RESULT (result));
+  g_assert (G_IS_TASK (task));
+
+  if (!sysprof_capture_view_scan_finish (self, result, &error))
+    {
+      g_task_return_error (task, g_steal_pointer (&error));
+      return;
+    }
+
+  state = g_task_get_task_data (task);
+  g_assert (state != NULL);
+  g_assert (state->reader != NULL);
+
+  if (priv->features.has_samples)
+    {
+      state->n_active++;
+      sysprof_capture_view_generate_callgraph_async (self,
+                                                     state->reader,
+                                                     NULL,
+                                                     g_task_get_cancellable (task),
+                                                     sysprof_capture_view_load_callgraph_cb,
+                                                     g_object_ref (task));
+    }
+
+  if (state->n_active == 0)
+    g_task_return_boolean (task, TRUE);
+}
+
+static void
+sysprof_capture_view_real_load_async (SysprofCaptureView   *self,
+                                      SysprofCaptureReader *reader,
+                                      GCancellable         *cancellable,
+                                      GAsyncReadyCallback   callback,
+                                      gpointer              user_data)
+{
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+  g_autoptr(GTask) task = NULL;
+  LoadAsync *state;
+
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (reader != NULL);
+  g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  state = g_slice_new0 (LoadAsync);
+  state->reader = sysprof_capture_reader_copy (reader);
+  state->n_active = 0;
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_set_source_tag (task, sysprof_capture_view_real_load_async);
+  g_task_set_task_data (task,
+                        g_steal_pointer (&state),
+                        load_async_free);
+  sysprof_capture_view_monitor_task (self, task);
+
+  /* Cancel any previously in-flight operations and save a cancellable so
+   * that any supplimental calls will result in the previous being cancelled.
+   */
+  if (priv->cancellable != cancellable)
+    {
+      g_cancellable_cancel (priv->cancellable);
+      g_clear_object (&priv->cancellable);
+      g_set_object (&priv->cancellable, cancellable);
+    }
+
+
+  /* First, discover the the time range for the display */
+  sysprof_capture_view_scan_async (self,
+                                   reader,
+                                   cancellable,
+                                   sysprof_capture_view_load_scan_cb,
+                                   g_steal_pointer (&task));
+}
+
+static gboolean
+sysprof_capture_view_real_load_finish (SysprofCaptureView  *self,
+                                       GAsyncResult        *result,
+                                       GError             **error)
+{
+  g_assert (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_assert (G_IS_TASK (result));
+  
+  return g_task_propagate_boolean (G_TASK (result), error);
+}
+
+static void
+sysprof_capture_view_finalize (GObject *object)
+{
+  SysprofCaptureView *self = (SysprofCaptureView *)object;
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+
+  g_clear_pointer (&priv->reader, sysprof_capture_reader_unref);
+  g_clear_object (&priv->cancellable);
+
+  G_OBJECT_CLASS (sysprof_capture_view_parent_class)->finalize (object);
+}
+
+static void
+sysprof_capture_view_get_property (GObject    *object,
+                                   guint       prop_id,
+                                   GValue     *value,
+                                   GParamSpec *pspec)
+{
+  SysprofCaptureView *self = (SysprofCaptureView *)object;
+
+  switch (prop_id)
+    {
+    case PROP_BUSY:
+      g_value_set_boolean (value, sysprof_capture_view_get_busy (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_capture_view_set_property (GObject      *object,
+                                   guint         prop_id,
+                                   const GValue *value,
+                                   GParamSpec   *pspec)
+{
+  switch (prop_id)
+    {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_capture_view_class_init (SysprofCaptureViewClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->finalize = sysprof_capture_view_finalize;
+  object_class->get_property = sysprof_capture_view_get_property;
+  object_class->set_property = sysprof_capture_view_set_property;
+
+  klass->load_async = sysprof_capture_view_real_load_async;
+  klass->load_finish = sysprof_capture_view_real_load_finish;
+
+  gtk_widget_class_set_template_from_resource (widget_class, 
"/org/gnome/sysprof/ui/sysprof-capture-view.ui");
+  gtk_widget_class_bind_template_child_private (widget_class, SysprofCaptureView, callgraph_view);
+  gtk_widget_class_bind_template_child_private (widget_class, SysprofCaptureView, marks_view);
+  gtk_widget_class_bind_template_child_private (widget_class, SysprofCaptureView, zoom_manager);
+
+  properties [PROP_BUSY] =
+    g_param_spec_boolean ("busy",
+                          "Busy",
+                          "If the widget is busy",
+                          FALSE,
+                          (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+  
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+sysprof_capture_view_init (SysprofCaptureView *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+}
+
+/**
+ * sysprof_capture_view_load_async:
+ * @self: a #SysprofCaptureView
+ *
+ * Asynchronously loads a capture.
+ *
+ * Since: 3.34
+ */
+void
+sysprof_capture_view_load_async (SysprofCaptureView   *self,
+                                 SysprofCaptureReader *reader,
+                                 GCancellable         *cancellable,
+                                 GAsyncReadyCallback   callback,
+                                 gpointer              user_data)
+{
+  g_return_if_fail (SYSPROF_IS_CAPTURE_VIEW (self));
+  g_return_if_fail (reader != NULL);
+  g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  SYSPROF_CAPTURE_VIEW_GET_CLASS (self)->load_async (self, reader, cancellable, callback, user_data);
+}
+
+/**
+ * sysprof_capture_view_load_finish:
+ * @self: a #SysprofCaptureView
+ *
+ * Completes a request to load a capture.
+ *
+ * Since: 3.34
+ */
+gboolean
+sysprof_capture_view_load_finish (SysprofCaptureView  *self,
+                                  GAsyncResult        *result,
+                                  GError             **error)
+{
+  g_return_val_if_fail (SYSPROF_IS_CAPTURE_VIEW (self), FALSE);
+  g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
+
+  return SYSPROF_CAPTURE_VIEW_GET_CLASS (self)->load_finish (self, result, error);
+}
+
+/**
+ * sysprof_capture_view_get_busy:
+ * @self: a #SysprofCaptureView
+ *
+ * Returns: %TRUE if the view is busy loading capture contents
+ *
+ * Since: 3.34
+ */
+gboolean
+sysprof_capture_view_get_busy (SysprofCaptureView *self)
+{
+  SysprofCaptureViewPrivate *priv = sysprof_capture_view_get_instance_private (self);
+
+  g_return_val_if_fail (SYSPROF_IS_CAPTURE_VIEW (self), FALSE);
+
+  return priv->busy > 0;
+}
+
+void
+sysprof_capture_view_reset (SysprofCaptureView *self)
+{
+  g_return_if_fail (SYSPROF_IS_CAPTURE_VIEW (self));
+
+  /* TODO: reset */
+}
diff --git a/src/libsysprof-ui/sysprof-capture-view.h b/src/libsysprof-ui/sysprof-capture-view.h
new file mode 100644
index 0000000..49c34c5
--- /dev/null
+++ b/src/libsysprof-ui/sysprof-capture-view.h
@@ -0,0 +1,67 @@
+/* sysprof-capture-view.h
+ *
+ * Copyright 2019 Christian Hergert <unknown domain org>
+ *
+ * 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 <gtk/gtk.h>
+#include <sysprof-capture.h>
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_CAPTURE_VIEW (sysprof_capture_view_get_type())
+
+SYSPROF_AVAILABLE_IN_ALL
+G_DECLARE_DERIVABLE_TYPE (SysprofCaptureView, sysprof_capture_view, SYSPROF, CAPTURE_VIEW, GtkBin)
+
+struct _SysprofCaptureViewClass
+{
+  GtkBinClass parent_class;
+  
+  void     (*load_async)  (SysprofCaptureView   *self,
+                           SysprofCaptureReader *reader,
+                           GCancellable         *cancellable,
+                           GAsyncReadyCallback   callback,
+                           gpointer              user_data);
+  gboolean (*load_finish) (SysprofCaptureView   *self,
+                           GAsyncResult         *result,
+                           GError              **error);
+
+  /*< private >*/
+  gpointer _reserved[32];
+};
+
+SYSPROF_AVAILABLE_IN_ALL
+GtkWidget            *sysprof_capture_view_new         (void);
+SYSPROF_AVAILABLE_IN_ALL
+SysprofCaptureReader *sysprof_capture_view_get_reader  (SysprofCaptureView    *self);
+SYSPROF_AVAILABLE_IN_ALL
+void                  sysprof_capture_view_load_async  (SysprofCaptureView    *self,
+                                                        SysprofCaptureReader  *reader,
+                                                        GCancellable          *cancellable,
+                                                        GAsyncReadyCallback    callback,
+                                                        gpointer               user_data);
+SYSPROF_AVAILABLE_IN_ALL
+gboolean              sysprof_capture_view_load_finish (SysprofCaptureView    *self,
+                                                        GAsyncResult          *result,
+                                                        GError               **error);
+SYSPROF_AVAILABLE_IN_ALL
+gboolean              sysprof_capture_view_get_busy    (SysprofCaptureView    *self);
+
+G_END_DECLS
diff --git a/src/libsysprof-ui/sysprof-ui.h b/src/libsysprof-ui/sysprof-ui.h
index a45d8fc..52a3af8 100644
--- a/src/libsysprof-ui/sysprof-ui.h
+++ b/src/libsysprof-ui/sysprof-ui.h
@@ -27,6 +27,7 @@ G_BEGIN_DECLS
 #define SYSPROF_UI_INSIDE
 
 # include "sysprof-callgraph-view.h"
+# include "sysprof-capture-view.h"
 # include "sysprof-cell-renderer-percent.h"
 # include "sysprof-cpu-visualizer-row.h"
 # include "sysprof-empty-state-view.h"
diff --git a/src/libsysprof-ui/ui/sysprof-capture-view.ui b/src/libsysprof-ui/ui/sysprof-capture-view.ui
new file mode 100644
index 0000000..16860c8
--- /dev/null
+++ b/src/libsysprof-ui/ui/sysprof-capture-view.ui
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="SysprofCaptureView" parent="GtkBin">
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <property name="visible">true</property>
+        <child>
+          <object class="GtkStackSwitcher">
+            <property name="stack">sections_stack</property>
+            <property name="halign">center</property>
+            <property name="visible">true</property>
+            <property name="margin-top">6</property>
+            <property name="margin-bottom">6</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkSeparator">
+            <property name="visible">true</property>
+          </object>
+        </child>
+        <child>
+          <object class="SysprofMultiPaned">
+            <property name="visible">true</property>
+            <child>
+              <object class="GtkBox">
+                <property name="orientation">vertical</property>
+                <property name="visible">true</property>
+                <child>
+                  <object class="SysprofVisualizerView" id="visualizers">
+                    <property name="visible">true</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkSeparator">
+                    <property name="visible">true</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child>
+              <object class="GtkStack" id="sections_stack">
+                <property name="homogeneous">true</property>
+                <property name="visible">true</property>
+                <property name="vexpand">true</property>
+                <child>
+                  <object class="SysprofCallgraphView" id="callgraph_view">
+                    <property name="visible">true</property>
+                  </object>
+                  <packing>
+                    <property name="title" translatable="yes">Callgraph</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="SysprofMarksView" id="marks_view">
+                    <property name="visible">true</property>
+                  </object>
+                  <packing>
+                    <property name="title" translatable="yes">Marks</property>
+                  </packing>
+                </child>
+              </object>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+  <object class="SysprofZoomManager" id="zoom_manager">
+  </object>
+</interface>
diff --git a/src/tests/meson.build b/src/tests/meson.build
index 1fdd5e1..a519283 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -55,6 +55,11 @@ if get_option('enable_gtk')
     dependencies: test_ui_deps,
   )
 
+  test_capture_view = executable('test-capture-view', 'test-capture-view.c',
+          c_args: test_cflags,
+    dependencies: test_ui_deps,
+  )
+
   test('test-model-filter', test_model_filter, env: test_env)
   test('test-zoom', test_zoom, env: test_env)
 
diff --git a/src/tests/test-capture-view.c b/src/tests/test-capture-view.c
new file mode 100644
index 0000000..192b111
--- /dev/null
+++ b/src/tests/test-capture-view.c
@@ -0,0 +1,63 @@
+/* test-capture-view.c
+ *
+ * Copyright 2019 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 <sysprof-ui.h>
+
+gint
+main (gint argc,
+      gchar *argv[])
+{
+  GtkWindow *window;
+  SysprofCaptureView *view;
+  SysprofCaptureReader *reader;
+  g_autoptr(GError) error = NULL;
+
+  gtk_init (&argc, &argv);
+
+  if (argc != 2)
+    {
+      g_printerr ("usage: %s CAPTURE.syscap\n", argv[0]);
+      return 1;
+    }
+
+  if (!(reader = sysprof_capture_reader_new (argv[1], &error)))
+    {
+      g_printerr ("Failed to load reader: %s\n", error->message);
+      return 1;
+    }
+
+  window = g_object_new (GTK_TYPE_WINDOW,
+                         "title", "SysprofCaptureView",
+                         "default-width", 800,
+                         "default-height", 600,
+                         NULL);
+  view = g_object_new (SYSPROF_TYPE_CAPTURE_VIEW,
+                       "visible", TRUE,
+                       NULL);
+  gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (view));
+
+  sysprof_capture_view_load_async (view, reader, NULL, NULL, NULL);
+
+  g_signal_connect (window, "delete-event", gtk_main_quit, NULL);
+  gtk_window_present (GTK_WINDOW (window));
+  gtk_main ();
+
+  return 0;
+}


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