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[gtk+] inspector: Add an initial action editor

commit 27f692da2daa9a86a707c4e8da81cc683169e113
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 5 05:48:26 2014 -0400

    inspector: Add an initial action editor
    
    Use a popup, like we do for properties. For now, it allows
    activating the action (with parameter, if necessary) and
    setting the state.

 gtk/inspector/Makefile.am     |    2 +
 gtk/inspector/action-editor.c |  419 +++++++++++++++++++++++++++++++++++++++++
 gtk/inspector/action-editor.h |   59 ++++++
 gtk/inspector/actions.c       |   47 +++--
 gtk/inspector/actions.ui      |    4 +-
 5 files changed, 512 insertions(+), 19 deletions(-)
---
diff --git a/gtk/inspector/Makefile.am b/gtk/inspector/Makefile.am
index 79b3219..896da9c 100644
--- a/gtk/inspector/Makefile.am
+++ b/gtk/inspector/Makefile.am
@@ -16,6 +16,8 @@ BUILT_SOURCES =                       \
        $(template_headers)
 
 libgtkinspector_la_SOURCES =           \
+       action-editor.h                 \
+       action-editor.c                 \
        actions.h                       \
        actions.c                       \
        button-path.h                   \
diff --git a/gtk/inspector/action-editor.c b/gtk/inspector/action-editor.c
new file mode 100644
index 0000000..397cc74
--- /dev/null
+++ b/gtk/inspector/action-editor.c
@@ -0,0 +1,419 @@
+/*
+ * 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 "action-editor.h"
+
+struct _GtkInspectorActionEditorPrivate
+{
+  GActionGroup *group;
+  gchar *prefix;
+  gchar *name;
+  gboolean enabled;
+  const GVariantType *parameter_type;
+  GVariantType *state_type;
+  GtkWidget *activate_button;
+  GtkWidget *parameter_entry;
+  GtkWidget *state_entry;
+  GtkSizeGroup *sg;
+};
+
+enum
+{
+  PROP_0,
+  PROP_GROUP,
+  PROP_PREFIX,
+  PROP_NAME
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkInspectorActionEditor, gtk_inspector_action_editor, GTK_TYPE_BOX)
+
+static void
+gtk_inspector_action_editor_init (GtkInspectorActionEditor *editor)
+{
+  editor->priv = gtk_inspector_action_editor_get_instance_private (editor);
+  g_object_set (editor,
+                "orientation", GTK_ORIENTATION_VERTICAL,
+                "spacing", 10,
+                "margin", 10,
+                NULL);
+}
+
+typedef void (*VariantEditorChanged) (GtkWidget *editor, gpointer data);
+
+typedef struct {
+  GtkWidget *editor;
+  VariantEditorChanged callback;
+  gpointer   data;
+} VariantEditorData;
+
+static void
+variant_editor_changed_cb (GObject           *obj,
+                           GParamSpec        *pspec,
+                           VariantEditorData *data)
+{
+  data->callback (data->editor, data->data);
+}
+
+static GtkWidget *
+variant_editor_new (const GVariantType   *type,
+                    VariantEditorChanged  callback,
+                    gpointer              data)
+{
+  GtkWidget *editor;
+  GtkWidget *label;
+  GtkWidget *entry;
+  VariantEditorData *d;
+
+  d = g_new (VariantEditorData, 1);
+  d->callback = callback;
+  d->data = data;
+
+  if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
+    {
+      editor = gtk_toggle_button_new_with_label ("FALSE");
+      g_signal_connect (editor, "notify::active", G_CALLBACK (variant_editor_changed_cb), d);
+    }   
+  else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
+    {
+      editor = gtk_entry_new ();
+      g_signal_connect (editor, "notify::text", G_CALLBACK (variant_editor_changed_cb), d);
+    }
+  else
+    {
+      editor = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+      entry = gtk_entry_new ();
+      gtk_container_add (GTK_CONTAINER (editor), entry);
+      label = gtk_label_new (g_variant_type_peek_string (type));
+      gtk_container_add (GTK_CONTAINER (editor), label);
+      g_signal_connect (entry, "notify::text", G_CALLBACK (variant_editor_changed_cb), d);
+    }
+
+  g_object_set_data (G_OBJECT (editor), "type", (gpointer)type);
+  d->editor = editor;
+  g_object_set_data_full (G_OBJECT (editor), "callback", d, g_free);
+
+  gtk_widget_show_all (editor);
+
+  return editor;
+}
+
+static void
+variant_editor_set_value (GtkWidget *editor,
+                          GVariant  *value)
+{
+  const GVariantType *type;
+  gpointer data;
+
+  data = g_object_get_data (G_OBJECT (editor), "callback");
+  g_signal_handlers_block_by_func (editor, variant_editor_changed_cb, data);
+
+  type = g_variant_get_type (value);
+  if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
+    {
+      GtkToggleButton *tb = GTK_TOGGLE_BUTTON (editor);
+      GtkWidget *child;
+
+      gtk_toggle_button_set_active (tb, g_variant_get_boolean (value));
+      child = gtk_bin_get_child (GTK_BIN (tb));
+      gtk_label_set_text (GTK_LABEL (child),
+                          g_variant_get_boolean (value) ? "TRUE" : "FALSE");    
+    }   
+  else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
+    {
+      GtkEntry *entry = GTK_ENTRY (editor);
+      gtk_entry_set_text (entry, g_variant_get_string (value, NULL));
+    }
+  else
+    {
+      GList *children;
+      GtkEntry *entry;
+      gchar *text;
+
+      children = gtk_container_get_children (GTK_CONTAINER (editor));
+      entry = children->data;
+      g_list_free (children);
+
+      text = g_variant_print (value, FALSE);
+      gtk_entry_set_text (entry, text);
+      g_free (text);
+    }
+
+  g_signal_handlers_unblock_by_func (editor, variant_editor_changed_cb, data);
+}
+
+GVariant *
+variant_editor_get_value (GtkWidget *editor)
+{
+  const GVariantType *type;
+  GVariant *value;
+
+  type = (const GVariantType *) g_object_get_data (G_OBJECT (editor), "type");
+  if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
+    {
+      GtkToggleButton *tb = GTK_TOGGLE_BUTTON (editor);
+      value = g_variant_new_boolean (gtk_toggle_button_get_active (tb));
+    }
+  else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
+    {
+      GtkEntry *entry = GTK_ENTRY (editor);
+      value = g_variant_new_string (gtk_entry_get_text (entry));
+    }
+  else
+    {
+      GList *children;
+      GtkEntry *entry;
+      const gchar *text;
+
+      children = gtk_container_get_children (GTK_CONTAINER (editor));
+      entry = children->data;
+      text = gtk_entry_get_text (entry);
+      g_list_free (children);
+
+      value = g_variant_parse (type, text, NULL, NULL, NULL);
+    }
+
+  return value;
+}
+
+static void
+activate_action (GtkWidget                *button,
+                 GtkInspectorActionEditor *r)
+{
+  GVariant *parameter = NULL;
+
+  if (r->priv->parameter_entry)
+    parameter = variant_editor_get_value (r->priv->parameter_entry);
+  g_action_group_activate_action (r->priv->group, r->priv->name, parameter);
+}
+
+static void
+parameter_changed (GtkWidget *editor,
+                   gpointer   data)
+{
+  GtkInspectorActionEditor *r = data;
+  GVariant *value;
+
+  value = variant_editor_get_value (editor);
+  gtk_widget_set_sensitive (r->priv->activate_button, r->priv->enabled && value != NULL);
+  if (value)
+    g_variant_unref (value);
+}
+
+static void
+state_changed (GtkWidget *editor,
+               gpointer   data)
+{
+  GtkInspectorActionEditor *r = data;
+  GVariant *value;
+
+  value = variant_editor_get_value (editor);
+  if (value)
+    g_action_group_change_action_state (r->priv->group, r->priv->name, value);
+}
+
+static void
+action_enabled_changed_cb (GActionGroup             *group,
+                           const gchar              *action_name,
+                           gboolean                  enabled,
+                           GtkInspectorActionEditor *r)
+{
+  r->priv->enabled = enabled;
+  if (r->priv->parameter_entry)
+    {
+      gtk_widget_set_sensitive (r->priv->parameter_entry, enabled);
+      parameter_changed (r->priv->parameter_entry, r);
+    }
+}
+
+static void
+action_state_changed_cb (GActionGroup             *group,
+                         const gchar              *action_name,
+                         GVariant                 *state,
+                         GtkInspectorActionEditor *r)
+{
+  if (r->priv->state_entry)
+    variant_editor_set_value (r->priv->state_entry, state);
+}
+
+static void
+constructed (GObject *object)
+{
+  GtkInspectorActionEditor *r = GTK_INSPECTOR_ACTION_EDITOR (object);
+  GVariant *state;
+  gchar *fullname;
+  GtkWidget *row;
+  GtkWidget *label;
+
+  r->priv->enabled = g_action_group_get_action_enabled (r->priv->group, r->priv->name);
+  state = g_action_group_get_action_state (r->priv->group, r->priv->name);
+
+  fullname = g_strdup_printf ("%s.%s", r->priv->prefix, r->priv->name);
+  gtk_container_add (GTK_CONTAINER (r), gtk_label_new (fullname));
+  g_free (fullname);
+
+  r->priv->sg = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+
+  row = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+
+  r->priv->activate_button = gtk_button_new_with_label (_("Activate"));
+  g_signal_connect (r->priv->activate_button, "clicked", G_CALLBACK (activate_action), r);
+
+  gtk_size_group_add_widget (r->priv->sg, r->priv->activate_button);
+  gtk_widget_set_sensitive (r->priv->activate_button, r->priv->enabled);
+  gtk_container_add (GTK_CONTAINER (row), r->priv->activate_button);
+
+  r->priv->parameter_type = g_action_group_get_action_parameter_type (r->priv->group, r->priv->name);
+  if (r->priv->parameter_type)
+    {
+      r->priv->parameter_entry = variant_editor_new (r->priv->parameter_type, parameter_changed, r);
+      gtk_widget_set_sensitive (r->priv->parameter_entry, r->priv->enabled);
+      gtk_container_add (GTK_CONTAINER (row), r->priv->parameter_entry);
+    }
+
+  gtk_container_add (GTK_CONTAINER (r), row);
+
+  if (state)
+    {
+      r->priv->state_type = g_variant_type_copy (g_variant_get_type (state));
+      row = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+      label = gtk_label_new (_("State"));
+      gtk_size_group_add_widget (r->priv->sg, label);
+      gtk_container_add (GTK_CONTAINER (row), label);
+      r->priv->state_entry = variant_editor_new (r->priv->state_type, state_changed, r);
+      variant_editor_set_value (r->priv->state_entry, state);
+      gtk_container_add (GTK_CONTAINER (row), r->priv->state_entry);
+      gtk_container_add (GTK_CONTAINER (r), row);
+    }
+
+  g_signal_connect (r->priv->group, "action-enabled-changed",
+                    G_CALLBACK (action_enabled_changed_cb), r);
+  g_signal_connect (r->priv->group, "action-state-changed",
+                    G_CALLBACK (action_state_changed_cb), r);
+
+  gtk_widget_show_all (GTK_WIDGET (r));
+}
+
+static void
+finalize (GObject *object)
+{
+  GtkInspectorActionEditor *r = GTK_INSPECTOR_ACTION_EDITOR (object);
+
+  g_free (r->priv->prefix);
+  g_free (r->priv->name);
+  g_object_unref (r->priv->sg);
+  if (r->priv->state_type)
+    g_variant_type_free (r->priv->state_type);
+  g_signal_handlers_disconnect_by_func (r->priv->group, action_enabled_changed_cb, r);
+  g_signal_handlers_disconnect_by_func (r->priv->group, action_state_changed_cb, r);
+
+  G_OBJECT_CLASS (gtk_inspector_action_editor_parent_class)->finalize (object);
+}
+
+static void
+get_property (GObject    *object,
+              guint       param_id,
+              GValue     *value,
+              GParamSpec *pspec)
+{
+  GtkInspectorActionEditor *r = GTK_INSPECTOR_ACTION_EDITOR (object);
+
+  switch (param_id)
+    {
+    case PROP_GROUP:
+      g_value_set_object (value, r->priv->group);
+      break;
+
+    case PROP_PREFIX:
+      g_value_set_string (value, r->priv->prefix);
+      break;
+
+    case PROP_NAME:
+      g_value_set_string (value, r->priv->name);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+set_property (GObject      *object,
+              guint         param_id,
+              const GValue *value,
+              GParamSpec   *pspec)
+{
+  GtkInspectorActionEditor *r = GTK_INSPECTOR_ACTION_EDITOR (object);
+
+  switch (param_id)
+    {
+    case PROP_GROUP:
+      r->priv->group = g_value_get_object (value);
+      break;
+
+    case PROP_PREFIX:
+      g_free (r->priv->prefix);
+      r->priv->prefix = g_value_dup_string (value);
+      break;
+
+    case PROP_NAME:
+      g_free (r->priv->name);
+      r->priv->name = g_value_dup_string (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_inspector_action_editor_class_init (GtkInspectorActionEditorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->constructed = constructed;
+  object_class->finalize = finalize;
+  object_class->get_property = get_property;
+  object_class->set_property = set_property;
+
+  g_object_class_install_property (object_class, PROP_GROUP,
+      g_param_spec_object ("group", "Action Group", "The Action Group containing the action",
+                           G_TYPE_ACTION_GROUP, G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+
+  g_object_class_install_property (object_class, PROP_PREFIX,
+      g_param_spec_string ("prefix", "Prefix", "The action name prefix",
+                           NULL, G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+
+  g_object_class_install_property (object_class, PROP_NAME,
+      g_param_spec_string ("name", "Name", "The action name",
+                           NULL, G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+}
+
+GtkWidget *
+gtk_inspector_action_editor_new (GActionGroup *group,
+                                 const gchar  *prefix,
+                                 const gchar  *name)
+{
+  return g_object_new (GTK_TYPE_INSPECTOR_ACTION_EDITOR,
+                       "group", group,
+                       "prefix", prefix,
+                       "name", name,
+                       NULL);
+}
diff --git a/gtk/inspector/action-editor.h b/gtk/inspector/action-editor.h
new file mode 100644
index 0000000..23f3549
--- /dev/null
+++ b/gtk/inspector/action-editor.h
@@ -0,0 +1,59 @@
+/*
+ * 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_ACTION_EDITOR_H_
+#define _GTK_INSPECTOR_ACTION_EDITOR_H_
+
+
+#include <gtk/gtk.h>
+
+
+#define GTK_TYPE_INSPECTOR_ACTION_EDITOR            (gtk_inspector_action_editor_get_type())
+#define GTK_INSPECTOR_ACTION_EDITOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), 
GTK_TYPE_INSPECTOR_ACTION_EDITOR, GtkInspectorActionEditor))
+#define GTK_INSPECTOR_ACTION_EDITOR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), 
GTK_TYPE_INSPECTOR_ACTION_EDITOR, GtkInspectorActionEditorClass))
+#define GTK_INSPECTOR_IS_ACTION_EDITOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), 
GTK_TYPE_INSPECTOR_ACTION_EDITOR))
+#define GTK_INSPECTOR_IS_ACTION_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), 
GTK_TYPE_INSPECTOR_ACTION_EDITOR))
+#define GTK_INSPECTOR_ACTION_EDITOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), 
GTK_TYPE_INSPECTOR_ACTION_EDITOR, GtkInspectorActionEditorClass))
+
+typedef struct _GtkInspectorActionEditorPrivate GtkInspectorActionEditorPrivate;
+
+typedef struct
+{
+  GtkBox parent;
+  GtkInspectorActionEditorPrivate *priv;
+} GtkInspectorActionEditor;
+
+typedef struct
+{
+  GtkBoxClass parent;
+} GtkInspectorActionEditorClass;
+
+
+G_BEGIN_DECLS
+
+
+GType      gtk_inspector_action_editor_get_type (void);
+GtkWidget *gtk_inspector_action_editor_new      (GActionGroup *group,
+                                                 const gchar  *prefix,
+                                                 const gchar  *name);
+
+G_END_DECLS
+
+
+#endif // _GTK_INSPECTOR_ACTION_EDITOR_H_
+
+// vim: set et:
diff --git a/gtk/inspector/actions.c b/gtk/inspector/actions.c
index ae3e345..e2620f5 100644
--- a/gtk/inspector/actions.c
+++ b/gtk/inspector/actions.c
@@ -18,6 +18,7 @@
 #include "config.h"
 #include <glib/gi18n-lib.h>
 #include "actions.h"
+#include "action-editor.h"
 #include "gtkwidgetprivate.h"
 
 enum
@@ -224,30 +225,42 @@ gtk_inspector_actions_set_object (GtkInspectorActions *sl,
 }
 
 static void
-state_edited (GtkCellRenderer     *cell,
-              const gchar         *path_string,
-              const gchar         *new_text,
-              GtkInspectorActions *sl)
+row_activated (GtkTreeView         *tv,
+               GtkTreePath         *path,
+               GtkTreeViewColumn   *col,
+               GtkInspectorActions *sl)
 {
-  GtkTreePath *path;
   GtkTreeIter iter;
-  GActionGroup *group;
+  GdkRectangle rect;
+  GtkWidget *popover;
+  gchar *prefix;
   gchar *name;
-  GError *error = NULL;
-  GVariant *state;
+  GActionGroup *group;
+  GtkWidget *editor;
 
-  path = gtk_tree_path_new_from_string (path_string);
   gtk_tree_model_get_iter (GTK_TREE_MODEL (sl->priv->model), &iter, path);
-  gtk_tree_path_free (path);
-
-  gtk_tree_model_get (GTK_TREE_MODEL (sl->priv->model), &iter,
-                      COLUMN_GROUP, &group,
+  gtk_tree_model_get (GTK_TREE_MODEL (sl->priv->model),
+                      &iter,
+                      COLUMN_PREFIX, &prefix,
                       COLUMN_NAME, &name,
+                      COLUMN_GROUP, &group,
                       -1);
-  state = g_variant_parse (NULL, new_text, NULL, NULL, &error);
-  if (state)
-    g_action_group_change_action_state (group, name, state);
+
+  gtk_tree_model_get_iter (GTK_TREE_MODEL (sl->priv->model), &iter, path);
+  gtk_tree_view_get_cell_area (tv, path, col, &rect);
+  gtk_tree_view_convert_bin_window_to_widget_coords (tv, rect.x, rect.y, &rect.x, &rect.y);
+
+  popover = gtk_popover_new (GTK_WIDGET (tv));
+  gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
+
+  editor = gtk_inspector_action_editor_new (group, prefix, name);
+  gtk_container_add (GTK_CONTAINER (popover), editor);
+  gtk_widget_show (popover);
+
+  g_signal_connect (popover, "hide", G_CALLBACK (gtk_widget_destroy), NULL);
+
   g_free (name);
+  g_free (prefix);
 }
 
 static void
@@ -257,7 +270,7 @@ gtk_inspector_actions_class_init (GtkInspectorActionsClass *klass)
 
   gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/inspector/actions.ui");
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorActions, model);
-  gtk_widget_class_bind_template_callback (widget_class, state_edited);
+  gtk_widget_class_bind_template_callback (widget_class, row_activated);
 }
 
 // vim: set et sw=2 ts=2:
diff --git a/gtk/inspector/actions.ui b/gtk/inspector/actions.ui
index 0ffa560..232df4a 100644
--- a/gtk/inspector/actions.ui
+++ b/gtk/inspector/actions.ui
@@ -23,6 +23,8 @@
           <object class= "GtkTreeView">
             <property name="visible">True</property>
             <property name="model">model</property>
+            <property name="activate-on-single-click">True</property>
+            <signal name="row-activated" handler="row_activated"/>
             <child>
               <object class="GtkTreeViewColumn">
                 <property name="title" translatable="yes">Prefix</property>
@@ -81,8 +83,6 @@
                 <child>
                   <object class="GtkCellRendererText">
                     <property name="scale">0.8</property>
-                    <property name="editable">True</property>
-                    <signal name="edited" handler="state_edited"/>
                   </object>
                   <attributes>
                     <attribute name="text">4</attribute>
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