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[gtk+] inspector: Show signals

commit c9dba4b8e0e7dc9b1030065e6b7f5e7177976288
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu May 8 01:04:16 2014 -0400

    inspector: Show signals
    
    Add a tab that shows available signals for each object. For now,
    we only show if each signal has handlers connected or now. More
    functionality will be added later.

 modules/inspector/Makefile.am             |    9 +-
 modules/inspector/inspector.gresource.xml |    1 +
 modules/inspector/module.c                |    2 +
 modules/inspector/signals-list.c          |  145 +++++++++++++++++++++++++++++
 modules/inspector/signals-list.h          |   55 +++++++++++
 modules/inspector/signals-list.ui         |   65 +++++++++++++
 modules/inspector/window.c                |    3 +
 modules/inspector/window.h                |    1 +
 modules/inspector/window.ui               |   20 ++++
 9 files changed, 298 insertions(+), 3 deletions(-)
---
diff --git a/modules/inspector/Makefile.am b/modules/inspector/Makefile.am
index 6cc8f60..2ab2bb5 100644
--- a/modules/inspector/Makefile.am
+++ b/modules/inspector/Makefile.am
@@ -40,7 +40,9 @@ libgtkinspector_la_SOURCES = \
        object-hierarchy.h \
        object-hierarchy.c \
        themes.h \
-       themes.c
+       themes.c \
+       signals-list.h \
+       signals-list.c
 
 libgtkinspector_la_CPPFLAGS = \
        -I$(top_srcdir)                 \
@@ -63,7 +65,7 @@ libgtkinspector_la_LIBADD = \
        $(top_builddir)/gtk/libgtk-3.la \
        $(GTK_DEP_LIBS)
 
-templates = \ 
+templates = \
        button-path.ui \
        classes-list.ui \
        css-editor.ui \
@@ -71,7 +73,8 @@ templates = \
        prop-list.ui \
        themes.ui \
        widget-tree.ui \
-       window.ui
+       window.ui \
+       signals-list.ui
 
 template_headers = $(templates:.ui=.ui.h)
 
diff --git a/modules/inspector/inspector.gresource.xml b/modules/inspector/inspector.gresource.xml
index 145c883..0feec7c 100644
--- a/modules/inspector/inspector.gresource.xml
+++ b/modules/inspector/inspector.gresource.xml
@@ -9,5 +9,6 @@
     <file>prop-list.ui</file>
     <file>themes.ui</file>
     <file>window.ui</file>
+    <file>signals-list.ui</file>
   </gresource>
 </gresources>
diff --git a/modules/inspector/module.c b/modules/inspector/module.c
index 2195d03..31b4a1c 100644
--- a/modules/inspector/module.c
+++ b/modules/inspector/module.c
@@ -31,6 +31,7 @@
 #include "python-hooks.h"
 #include "python-shell.h"
 #include "resources.h"
+#include "signals-list.h"
 #include "themes.h"
 #include "widget-tree.h"
 #include "window.h"
@@ -54,6 +55,7 @@ gtk_module_init (gint *argc, gchar ***argv)
   g_type_ensure (GTK_TYPE_INSPECTOR_PYTHON_SHELL);
   g_type_ensure (GTK_TYPE_INSPECTOR_PROPERTY_CELL_RENDERER);
   g_type_ensure (GTK_TYPE_INSPECTOR_WINDOW);
+  g_type_ensure (GTK_TYPE_INSPECTOR_SIGNALS_LIST);
 }
 
 
diff --git a/modules/inspector/signals-list.c b/modules/inspector/signals-list.c
new file mode 100644
index 0000000..f511e2a
--- /dev/null
+++ b/modules/inspector/signals-list.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2014 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+#include <glib/gi18n-lib.h>
+#include "signals-list.h"
+
+enum
+{
+  COLUMN_ENABLED,
+  COLUMN_NAME,
+  COLUMN_CLASS,
+  COLUMN_CONNECTED
+};
+
+struct _GtkInspectorSignalsListPrivate
+{
+  GtkWidget *view;
+  GtkListStore *model;
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkInspectorSignalsList, gtk_inspector_signals_list, GTK_TYPE_BOX)
+
+static void
+gtk_inspector_signals_list_init (GtkInspectorSignalsList *sl)
+{
+  sl->priv = gtk_inspector_signals_list_get_instance_private (sl);
+  gtk_widget_init_template (GTK_WIDGET (sl));
+}
+
+static GType *
+get_types (GObject *object, guint *length)
+{
+  GHashTable *seen;
+  GType *ret;
+  GType type;
+  GType *iface;
+  gint i;
+
+  seen = g_hash_table_new (g_direct_hash, g_direct_equal);
+
+  type = ((GTypeInstance*)object)->g_class->g_type;
+  while (type)
+    {
+      g_hash_table_add (seen, GSIZE_TO_POINTER (type));
+      iface = g_type_interfaces (type, NULL);
+      for (i = 0; iface[i]; i++)
+        g_hash_table_add (seen, GSIZE_TO_POINTER (iface[i]));
+      g_free (iface);
+      type = g_type_parent (type);
+    }
+ 
+  ret = (GType *)g_hash_table_get_keys_as_array (seen, length); 
+  g_hash_table_unref (seen);
+
+  return ret;
+}
+
+static void
+add_signals (GtkInspectorSignalsList *sl,
+             GType                    type,
+             GObject                 *object)
+{
+  guint *ids;
+  guint n_ids;
+  gint i;
+  GSignalQuery query;
+  GtkTreeIter iter;
+  gboolean has_handler;
+
+  if (!G_TYPE_IS_INSTANTIATABLE (type) && !G_TYPE_IS_INTERFACE (type))
+    return;
+
+  ids = g_signal_list_ids (type, &n_ids);
+  for (i = 0; i < n_ids; i++)
+    {
+      g_signal_query (ids[i], &query);
+      has_handler = g_signal_has_handler_pending (object, ids[i], 0, TRUE);
+      gtk_list_store_append (sl->priv->model, &iter);
+      gtk_list_store_set (sl->priv->model, &iter,
+                          COLUMN_ENABLED, FALSE,
+                          COLUMN_NAME, query.signal_name,
+                          COLUMN_CLASS, g_type_name (type),
+                          COLUMN_CONNECTED, has_handler ? _("Yes") : "",
+                          -1);
+    }
+  g_free (ids);
+}
+
+static void
+read_signals_from_object (GtkInspectorSignalsList *sl,
+                          GObject                 *object)
+{
+  GType *types;
+  guint length;
+  gint i;
+
+  types = get_types (object, &length);
+  for (i = 0; i < length; i++)
+    add_signals (sl, types[i], object);
+  g_free (types);
+}
+
+void
+gtk_inspector_signals_list_set_object (GtkInspectorSignalsList *sl,
+                                       GObject                 *object)
+{
+  gtk_list_store_clear (sl->priv->model);
+
+  gtk_widget_set_sensitive (GTK_WIDGET (sl), TRUE);
+
+  read_signals_from_object (sl, object);
+}
+
+static void
+gtk_inspector_signals_list_class_init (GtkInspectorSignalsListClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/inspector/signals-list.ui");
+  gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorSignalsList, view);
+  gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorSignalsList, model);
+}
+
+GtkWidget *
+gtk_inspector_signals_list_new (void)
+{
+  return GTK_WIDGET (g_object_new (GTK_TYPE_INSPECTOR_SIGNALS_LIST, NULL));
+}
+
+// vim: set et sw=2 ts=2:
diff --git a/modules/inspector/signals-list.h b/modules/inspector/signals-list.h
new file mode 100644
index 0000000..4332bd2
--- /dev/null
+++ b/modules/inspector/signals-list.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2014 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _GTK_INSPECTOR_SIGNALS_LIST_H_
+#define _GTK_INSPECTOR_SIGNALS_LIST_H_
+
+#include <gtk/gtk.h>
+
+#define GTK_TYPE_INSPECTOR_SIGNALS_LIST            (gtk_inspector_signals_list_get_type())
+#define GTK_INSPECTOR_SIGNALS_LIST(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), 
GTK_TYPE_INSPECTOR_SIGNALS_LIST, GtkInspectorSignalsList))
+#define GTK_INSPECTOR_SIGNALS_LIST_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), 
GTK_TYPE_INSPECTOR_SIGNALS_LIST, GtkInspectorSignalsListClass))
+#define GTK_INSPECTOR_IS_SIGNALS_LIST(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), 
GTK_TYPE_INSPECTOR_SIGNALS_LIST))
+#define GTK_INSPECTOR_IS_SIGNALS_LIST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), 
GTK_TYPE_INSPECTOR_SIGNALS_LIST))
+#define GTK_INSPECTOR_SIGNALS_LIST_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), 
GTK_TYPE_INSPECTOR_SIGNALS_LIST, GtkInspectorSignalsListClass))
+
+
+typedef struct _GtkInspectorSignalsListPrivate GtkInspectorSignalsListPrivate;
+
+typedef struct _GtkInspectorSignalsList
+{
+  GtkBox parent;
+  GtkInspectorSignalsListPrivate *priv;
+} GtkInspectorSignalsList;
+
+typedef struct _GtkInspectorSignalsListClass
+{
+  GtkBoxClass parent;
+} GtkInspectorSignalsListClass;
+
+G_BEGIN_DECLS
+
+GType      gtk_inspector_signals_list_get_type   (void);
+GtkWidget *gtk_inspector_signals_list_new        (void);
+void       gtk_inspector_signals_list_set_object (GtkInspectorSignalsList *sl,
+                                                  GObject                 *object);
+
+G_END_DECLS
+
+#endif // _GTK_INSPECTOR_SIGNALS_LIST_H_
+
+// vim: set et sw=2 ts=2:
diff --git a/modules/inspector/signals-list.ui b/modules/inspector/signals-list.ui
new file mode 100644
index 0000000..d9243a5
--- /dev/null
+++ b/modules/inspector/signals-list.ui
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface domain="gtk30">
+  <object class="GtkListStore" id="model">
+    <columns>
+      <column type="gboolean"/>
+      <column type="gchararray"/>
+      <column type="gchararray"/>
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <template class="GtkInspectorSignalsList" parent="GtkBox">
+    <property name="orientation">vertical</property>
+    <child>
+      <object class="GtkScrolledWindow">
+        <property name="visible">True</property>
+        <property name="expand">True</property>
+        <child>
+          <object class="GtkTreeView" id="view">
+            <property name="visible">True</property>
+            <property name="model">model</property>
+            <child>
+              <object class="GtkTreeViewColumn">
+                <property name="title" translatable="yes">Name</property>
+                <child>
+                  <object class="GtkCellRendererText">
+                    <property name="scale">0.8</property>
+                  </object>
+                  <attributes>
+                    <attribute name="text">1</attribute>
+                  </attributes>
+                </child>
+              </object>
+            </child>
+            <child>
+              <object class="GtkTreeViewColumn">
+                <property name="title" translatable="yes">Defined At</property>
+                <child>
+                  <object class="GtkCellRendererText">
+                    <property name="scale">0.8</property>
+                  </object>
+                  <attributes>
+                    <attribute name="text">2</attribute>
+                  </attributes>
+                </child>
+              </object>
+            </child>  
+            <child>
+              <object class="GtkTreeViewColumn">
+                <property name="title" translatable="yes">Connected</property>
+                <child>
+                  <object class="GtkCellRendererText">
+                    <property name="scale">0.8</property>
+                  </object>
+                  <attributes>
+                    <attribute name="text">3</attribute>
+                  </attributes>
+                </child>
+              </object>
+            </child>  
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/modules/inspector/window.c b/modules/inspector/window.c
index fb9fa9e..898afda 100644
--- a/modules/inspector/window.c
+++ b/modules/inspector/window.c
@@ -36,6 +36,7 @@
 #include "python-shell.h"
 #include "button-path.h"
 #include "themes.h"
+#include "signals-list.h"
 
 G_DEFINE_TYPE (GtkInspectorWindow, gtk_inspector_window, GTK_TYPE_WINDOW)
 
@@ -72,6 +73,7 @@ on_widget_tree_selection_changed (GtkInspectorWidgetTree *wt,
         return;
 
       gtk_inspector_prop_list_set_object (GTK_INSPECTOR_PROP_LIST (iw->child_prop_list), selected);
+      gtk_inspector_signals_list_set_object (GTK_INSPECTOR_SIGNALS_LIST (iw->signals_list), selected);
       gtk_inspector_object_hierarchy_set_object (GTK_INSPECTOR_OBJECT_HIERARCHY (iw->object_hierarchy), 
selected);
 
       if (GTK_IS_WIDGET (selected))
@@ -179,6 +181,7 @@ gtk_inspector_window_class_init (GtkInspectorWindowClass *klass)
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, widget_tree);
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, prop_list);
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, child_prop_list);
+  gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, signals_list);
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, button_path);
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, classes_list);
   gtk_widget_class_bind_template_child (widget_class, GtkInspectorWindow, widget_css_editor);
diff --git a/modules/inspector/window.h b/modules/inspector/window.h
index b070b0f..1e9bd69 100644
--- a/modules/inspector/window.h
+++ b/modules/inspector/window.h
@@ -44,6 +44,7 @@ typedef struct
   GtkWidget *widget_tree;
   GtkWidget *prop_list;
   GtkWidget *child_prop_list;
+  GtkWidget *signals_list;
   GtkWidget *python_shell;
   GtkWidget *button_path;
   GtkWidget *classes_list;
diff --git a/modules/inspector/window.ui b/modules/inspector/window.ui
index 287628f..6c364ab 100644
--- a/modules/inspector/window.ui
+++ b/modules/inspector/window.ui
@@ -160,6 +160,26 @@
                       </object>
                     </child> 
                     <child>
+                      <object class="GtkScrolledWindow">
+                        <property name="visible">True</property>
+                        <property name="hscrollbar-policy">automatic</property>
+                        <property name="vscrollbar-policy">always</property>
+                        <property name="shadow-type">in</property>
+                        <property name="width-request">250</property>
+                        <child>
+                          <object class="GtkInspectorSignalsList" id="signals_list">
+                            <property name="visible">True</property>
+                          </object>
+                        </child>
+                      </object>
+                    </child>
+                    <child type="tab">
+                      <object class="GtkLabel">
+                        <property name="visible">True</property>
+                        <property name="label" translatable="yes">Signals</property>
+                      </object>
+                    </child> 
+                    <child>
                       <object class="GtkInspectorObjectHierarchy" id="object_hierarchy">
                         <property name="visible">True</property>
                       </object>
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