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[glade/modern-ui: 31/31] GladeIntro: WIP add interactive introduction to new GUI

commit 4aac30f6fd6da0e28b32a651da5c38f3e93f9401
Author: Juan Pablo Ugarte <juanpablougarte gmail com>
Date:   Sun Jul 2 12:12:25 2017 -0300

    GladeIntro: WIP add interactive introduction to new GUI

 gladeui/glade-adaptor-chooser.ui |    4 +
 src/Makefile.am                  |    2 +
 src/glade-intro.c                |  404 ++++++++++++++++++++++++++++++++++++++
 src/glade-intro.h                |   58 ++++++
 src/glade-window.c               |  125 ++++++++++++-
 src/glade-window.css             |   25 +++-
 src/glade.glade                  |   43 ++++
 7 files changed, 659 insertions(+), 2 deletions(-)
---
diff --git a/gladeui/glade-adaptor-chooser.ui b/gladeui/glade-adaptor-chooser.ui
index 496a995..b216c5d 100644
--- a/gladeui/glade-adaptor-chooser.ui
+++ b/gladeui/glade-adaptor-chooser.ui
@@ -8,6 +8,7 @@
     <property name="spacing">4</property>
     <child>
       <object class="GtkMenuButton" id="all_button">
+        <property name="name">adaptor-search-button</property>
         <property name="visible">True</property>
         <property name="can_focus">True</property>
         <property name="receives_default">True</property>
@@ -53,6 +54,7 @@
     </child>
     <child>
       <object class="GtkMenuButton" id="others_button">
+        <property name="name">adaptor-others-button</property>
         <property name="visible">True</property>
         <property name="can_focus">True</property>
         <property name="receives_default">True</property>
@@ -74,11 +76,13 @@
     </child>
     <child>
       <object class="GtkButtonBox" id="gtk_button_box">
+        <property name="name">adaptor-gtk-buttonbox</property>
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="layout_style">expand</property>
         <child>
           <object class="GtkMenuButton" id="extra_button">
+            <property name="name">adaptor-extra-button</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes">Extra gtk objects</property>
diff --git a/src/Makefile.am b/src/Makefile.am
index 67d1b3b..428ae4e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -24,6 +24,7 @@ BUILT_SOURCES = glade-resources.c glade-resources.h
 
 glade_SOURCES = \
        glade-window.c \
+       glade-intro.c \
        glade-resources.c \
        glade-preferences.c \
        glade-http.c \
@@ -32,6 +33,7 @@ glade_SOURCES = \
 
 noinst_HEADERS = \
        glade-window.h \
+       glade-intro.h \
        glade-resources.h \
        glade-preferences.h \
        glade-logo.h \
diff --git a/src/glade-intro.c b/src/glade-intro.c
new file mode 100644
index 0000000..c678317
--- /dev/null
+++ b/src/glade-intro.c
@@ -0,0 +1,404 @@
+/*
+ * glade-intro.c
+ *
+ * Copyright (C) 2017 Juan Pablo Ugarte
+ *
+ * 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 2.1 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 program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Authors:
+ *   Juan Pablo Ugarte <juanpablougarte gmail com>
+ */
+
+#include "glade-intro.h"
+
+typedef struct
+{
+  GtkWidget   *widget;
+  const gchar *name;
+  const gchar *text;
+  gint         delay;
+} ScriptNode;
+
+typedef struct
+{
+  GtkWidget  *toplevel;
+
+  GList      *script;      /* List of (ScriptNode *) */
+  GHashTable *widgets;     /* Table with all named widget in toplevel */
+
+  GtkPopover *popover;     /* Popover to show the script text */
+
+  guint       timeout_id;  /* Timeout id for running the script */
+  GList      *current;     /* Current script node */
+} GladeIntroPrivate;
+
+struct _GladeIntro
+{
+  GObject parent_instance;
+};
+
+enum
+{
+  PROP_0,
+  PROP_TOPLEVEL,
+  PROP_STATE,
+
+  N_PROPERTIES
+};
+
+enum
+{
+  SHOW_NODE,
+  HIDE_NODE,
+
+  LAST_SIGNAL
+};
+
+static guint intro_signals[LAST_SIGNAL] = { 0 };
+
+static GParamSpec *properties[N_PROPERTIES];
+
+G_DEFINE_TYPE_WITH_PRIVATE (GladeIntro, glade_intro, G_TYPE_OBJECT);
+
+#define GET_PRIVATE(d) ((GladeIntroPrivate *) glade_intro_get_instance_private((GladeIntro*)d))
+
+static void
+glade_intro_init (GladeIntro *intro)
+{
+}
+
+static void
+glade_intro_finalize (GObject *object)
+{
+  GladeIntroPrivate *priv = GET_PRIVATE (object);
+
+  if (priv->timeout_id)
+    {
+      g_source_remove (priv->timeout_id);
+      priv->timeout_id = 0;
+    }
+
+  gtk_popover_set_relative_to (priv->popover, NULL);
+  g_clear_object (&priv->popover);
+
+  G_OBJECT_CLASS (glade_intro_parent_class)->finalize (object);
+}
+
+static void
+glade_intro_set_property (GObject      *object,
+                          guint         prop_id,
+                          const GValue *value,
+                          GParamSpec   *pspec)
+{
+  g_return_if_fail (GLADE_IS_INTRO (object));
+
+  switch (prop_id)
+    {
+      case PROP_TOPLEVEL:
+        glade_intro_set_toplevel (GLADE_INTRO (object), g_value_get_object (value));
+      break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+glade_intro_get_property (GObject    *object,
+                          guint       prop_id,
+                          GValue     *value,
+                          GParamSpec *pspec)
+{
+  GladeIntroPrivate *priv;
+
+  g_return_if_fail (GLADE_IS_INTRO (object));
+  priv = GET_PRIVATE (object);
+
+  switch (prop_id)
+    {
+      case PROP_TOPLEVEL:
+        g_value_set_object (value, priv->toplevel);
+      break;
+      case PROP_STATE:
+        if (priv->timeout_id)
+          g_value_set_enum (value, GLADE_INTRO_STATE_PLAYING);
+        else if (priv->current)
+          g_value_set_enum (value, GLADE_INTRO_STATE_PAUSED);
+        else
+          g_value_set_enum (value, GLADE_INTRO_STATE_NULL);
+      break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static GType
+glade_intro_state_get_type (void)
+{
+    static GType etype = 0;
+    if (G_UNLIKELY(etype == 0)) {
+        static const GEnumValue values[] = {
+            { GLADE_INTRO_STATE_NULL, "GLADE_INTRO_STATE_NULL", "null" },
+            { GLADE_INTRO_STATE_PLAYING, "GLADE_INTRO_STATE_PLAYING", "playing" },
+            { GLADE_INTRO_STATE_PAUSED, "GLADE_INTRO_STATE_PAUSED", "paused" },
+            { 0, NULL, NULL }
+        };
+        etype = g_enum_register_static (g_intern_static_string ("GladeIntroStatus"), values);
+    }
+    return etype;
+}
+
+static void
+glade_intro_class_init (GladeIntroClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = glade_intro_finalize;
+  object_class->set_property = glade_intro_set_property;
+  object_class->get_property = glade_intro_get_property;
+
+  /* Properties */
+  properties[PROP_TOPLEVEL] =
+    g_param_spec_object ("toplevel", "Toplevel",
+                         "The main toplevel from where to get the widgets",
+                         GTK_TYPE_WINDOW,
+                         G_PARAM_READWRITE);
+  properties[PROP_STATE] =
+    g_param_spec_enum ("state", "State",
+                       "Playback state",
+                       glade_intro_state_get_type (),
+                       GLADE_INTRO_STATE_NULL,
+                       G_PARAM_READABLE);
+
+  intro_signals[SHOW_NODE] =
+    g_signal_new ("show-node", G_OBJECT_CLASS_TYPE (klass), 0, 0,
+                  NULL, NULL, NULL,
+                  G_TYPE_NONE, 3,
+                  GTK_TYPE_POPOVER,
+                  GTK_TYPE_WIDGET,
+                  G_TYPE_STRING);
+
+  intro_signals[HIDE_NODE] =
+    g_signal_new ("hide-node", G_OBJECT_CLASS_TYPE (klass), 0, 0,
+                  NULL, NULL, NULL,
+                  G_TYPE_NONE, 3,
+                  GTK_TYPE_POPOVER,
+                  GTK_TYPE_WIDGET,
+                  G_TYPE_STRING);
+
+  g_object_class_install_properties (object_class, N_PROPERTIES, properties);
+}
+
+/* Public API */
+
+GladeIntro *
+glade_intro_new (GtkWindow *toplevel)
+{
+  return (GladeIntro*) g_object_new (GLADE_TYPE_INTRO, "toplevel", toplevel, NULL);
+}
+
+static void
+get_toplevel_widgets (GtkWidget *widget, gpointer data)
+{
+  const gchar *name;
+
+  if ((name = gtk_widget_get_name (widget)) && 
+      g_strcmp0 (name, G_OBJECT_TYPE_NAME (widget)))
+    g_hash_table_insert (GET_PRIVATE (data)->widgets, (gpointer)name, widget);
+
+  if (GTK_IS_CONTAINER (widget))
+    gtk_container_forall (GTK_CONTAINER (widget), get_toplevel_widgets, data);
+}
+
+void
+glade_intro_set_toplevel (GladeIntro *intro, GtkWindow *toplevel)
+{
+  GladeIntroPrivate *priv;
+
+  g_return_if_fail (GLADE_IS_INTRO (intro));
+  priv = GET_PRIVATE (intro);
+
+  g_clear_object (&priv->toplevel);
+  g_clear_pointer (&priv->widgets, g_hash_table_unref);
+
+  if (toplevel)
+    {
+      priv->toplevel = g_object_ref (toplevel);
+      priv->widgets = g_hash_table_new (g_str_hash, g_str_equal);
+      gtk_container_forall (GTK_CONTAINER (toplevel), get_toplevel_widgets, intro);
+    }
+}
+
+void
+glade_intro_script_add (GladeIntro  *intro,
+                        const gchar *name,
+                        const gchar *text,
+                        gint         delay)
+{
+  GladeIntroPrivate *priv;
+  ScriptNode *node;
+
+  g_return_if_fail (GLADE_IS_INTRO (intro));
+  priv = GET_PRIVATE (intro);
+
+  node = g_new0 (ScriptNode, 1);
+  node->name  = name;
+  node->text  = text;
+  node->delay = delay;
+
+  priv->script = g_list_append (priv->script, node);
+}
+
+static gboolean script_play (gpointer data);
+
+static void
+hide_current_node (GladeIntro *intro)
+{
+  GladeIntroPrivate *priv = GET_PRIVATE (intro);
+  ScriptNode *node;
+
+  if (priv->current && (node = priv->current->data))
+    {
+      if (node->widget)
+        gtk_style_context_remove_class (gtk_widget_get_style_context (node->widget),
+                                        "glade-intro-highlight");
+      g_signal_emit (intro, intro_signals[HIDE_NODE], 0, priv->popover, node->widget, node->name);
+    }
+
+  if (priv->popover)
+    gtk_popover_popdown (priv->popover);
+}
+
+static gboolean
+script_transition (gpointer data)
+{
+  GladeIntroPrivate *priv = GET_PRIVATE (data);
+
+  hide_current_node (data);
+  priv->timeout_id = g_timeout_add (250, script_play, data);
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+on_popover_closed (GtkPopover *popover, GladeIntro *intro)
+{
+  glade_intro_pause (intro);
+}
+
+static GtkWidget *
+glade_intro_popover_new (GladeIntro *intro, const gchar *text)
+{
+  GtkWidget *popover, *box, *image, *label;
+
+  popover = gtk_popover_new (NULL);
+  label = gtk_label_new (text);
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  image = gtk_image_new_from_icon_name ("dialog-information-symbolic", GTK_ICON_SIZE_DIALOG);
+
+  gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+  gtk_label_set_max_width_chars (GTK_LABEL (label), 28);
+
+  gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0);
+  gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
+  gtk_container_add (GTK_CONTAINER (popover), box);
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (popover), "glade-intro");
+  g_signal_connect (popover, "closed", G_CALLBACK (on_popover_closed), intro);
+
+  gtk_widget_show_all (box);
+
+  return popover;
+}
+
+static gboolean
+script_play (gpointer data)
+{
+  GladeIntroPrivate *priv = GET_PRIVATE (data);
+  GtkStyleContext *context;
+  ScriptNode *node;
+
+  priv->timeout_id = 0;
+
+  if (priv->script == NULL)
+    return G_SOURCE_REMOVE;
+
+  /* Set current node to prenset */
+  priv->current = (priv->current) ? g_list_next (priv->current) : priv->script;
+
+  if (!priv->current || !(node = priv->current->data))
+    return G_SOURCE_REMOVE;
+
+  g_clear_object (&priv->popover);
+
+  if ((node->widget = g_hash_table_lookup (priv->widgets, node->name)) && node->text)
+    {
+      priv->popover = g_object_ref_sink (glade_intro_popover_new (data, node->text));
+      context = gtk_widget_get_style_context (node->widget);
+      gtk_style_context_add_class (context, "glade-intro-highlight");
+      gtk_popover_set_relative_to (priv->popover, node->widget);
+    }
+
+  g_signal_emit (data, intro_signals[SHOW_NODE], 0, priv->popover, node->widget, node->name);
+
+  if (priv->popover)
+    gtk_popover_popup (priv->popover);
+
+  priv->timeout_id = g_timeout_add_seconds (node->delay, script_transition, data);
+  
+  return G_SOURCE_REMOVE;
+}
+
+void
+glade_intro_play (GladeIntro *intro)
+{
+  g_return_if_fail (GLADE_IS_INTRO (intro));
+
+  script_play (intro);
+
+  g_object_notify_by_pspec (G_OBJECT (intro), properties[PROP_STATE]);
+}
+
+void
+glade_intro_pause (GladeIntro *intro)
+{
+  GladeIntroPrivate *priv;
+
+  g_return_if_fail (GLADE_IS_INTRO (intro));
+  priv = GET_PRIVATE (intro);
+
+  if (priv->timeout_id)
+    g_source_remove (priv->timeout_id);
+
+  priv->timeout_id = 0;
+  hide_current_node (intro);
+
+  g_object_notify_by_pspec (G_OBJECT (intro), properties[PROP_STATE]);
+}
+
+void
+glade_intro_stop (GladeIntro *intro)
+{
+  GladeIntroPrivate *priv;
+
+  g_return_if_fail (GLADE_IS_INTRO (intro));
+  priv = GET_PRIVATE (intro);
+
+  glade_intro_pause (intro);
+  priv->current = NULL;
+
+  g_object_notify_by_pspec (G_OBJECT (intro), properties[PROP_STATE]);
+}
diff --git a/src/glade-intro.h b/src/glade-intro.h
new file mode 100644
index 0000000..92b17a5
--- /dev/null
+++ b/src/glade-intro.h
@@ -0,0 +1,58 @@
+/*
+ * glade-intro.h
+ *
+ * Copyright (C) 2017 Juan Pablo Ugarte
+ *
+ * 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 2.1 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 program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Authors:
+ *   Juan Pablo Ugarte <juanpablougarte gmail com>
+ */
+
+#ifndef _GLADE_INTRO_H_
+#define _GLADE_INTRO_H_
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GLADE_TYPE_INTRO (glade_intro_get_type ())
+G_DECLARE_FINAL_TYPE (GladeIntro, glade_intro, GLADE, INTRO, GObject)
+
+typedef enum
+{
+  GLADE_INTRO_STATE_NULL =  0,
+  GLADE_INTRO_STATE_PLAYING,
+  GLADE_INTRO_STATE_PAUSED
+} GladeIntroState;
+
+GladeIntro *glade_intro_new (GtkWindow *toplevel);
+
+void        glade_intro_set_toplevel (GladeIntro *intro,
+                                      GtkWindow  *toplevel);
+
+void        glade_intro_script_add   (GladeIntro  *intro,
+                                      const gchar *name,
+                                      const gchar *text,
+                                      gint         delay);
+
+void        glade_intro_play  (GladeIntro *intro);
+void        glade_intro_pause (GladeIntro *intro);
+void        glade_intro_stop  (GladeIntro *intro);
+
+
+G_END_DECLS
+
+#endif /* _GLADE_INTRO_H_ */
diff --git a/src/glade-window.c b/src/glade-window.c
index f68ae2d..c742017 100644
--- a/src/glade-window.c
+++ b/src/glade-window.c
@@ -30,6 +30,7 @@
 #include "glade-resources.h"
 #include "glade-preferences.h"
 #include "glade-registration.h"
+#include "glade-intro.h"
 
 #include <gladeui/glade.h>
 #include <gladeui/glade-popup.h>
@@ -103,7 +104,7 @@ struct _GladeWindowPrivate
 
   GtkAccelGroup *accelgroup;
 
-  GtkAction *save_action, *quit_action;
+  GtkAction *new_action, *save_action, *quit_action;
   GtkAction *undo_action, *redo_action, *cut_action, *copy_action, *paste_action, *delete_action;
   GtkAction *selector_radioaction;
 
@@ -131,6 +132,8 @@ struct _GladeWindowPrivate
 
   GtkWidget *registration;      /* Registration and user survey dialog */
   
+  GladeIntro *intro;
+  
   GdkRectangle position;
 };
 
@@ -2353,6 +2356,12 @@ on_quit_action_activate (GtkAction *action, GladeWindow *window)
 }
 
 static void
+on_intro_button_clicked (GtkWidget *button, GladeWindow *window)
+{
+  glade_intro_play (window->priv->intro);
+}
+
+static void
 glade_window_init (GladeWindow *window)
 {
   GladeWindowPrivate *priv;
@@ -2382,6 +2391,115 @@ glade_window_init (GladeWindow *window)
 }
 
 static void
+on_intro_show_node (GladeIntro  *intro,
+                    GtkPopover  *popover,
+                    GtkWidget   *widget,
+                    const gchar *node,
+                    GladeWindow *window)
+{
+  if (!g_strcmp0 (node, "action-new"))
+    gtk_action_activate (window->priv->new_action);
+
+  if (!widget)
+    return;
+
+  /* Ensure the widget is visible */
+  if (widget && !gtk_widget_is_visible (widget))
+    {
+      GtkWidget *parent;
+      /* if the widget is inside a popover pop it up */
+      if ((parent = gtk_widget_get_ancestor (widget, GTK_TYPE_POPOVER)))
+        gtk_popover_popup (GTK_POPOVER (parent));
+    }
+
+  if (!g_strcmp0 (node, "inspector") || !g_strcmp0 (node, "editor"))
+    {
+      GdkRectangle rect = {
+        gtk_widget_get_allocated_width (widget)/2,
+        gtk_widget_get_allocated_height (widget)/2,
+        4, 4
+      };
+
+      gtk_popover_set_position (popover, GTK_POS_BOTTOM);
+      gtk_popover_set_pointing_to (popover, &rect);
+    }
+}
+
+static void
+on_intro_hide_node (GladeIntro  *intro,
+                    GtkPopover  *popover,
+                    GtkWidget   *widget,
+                    const gchar *node,
+                    GladeWindow *window)
+{
+  if (!widget)
+    return;
+
+  if (!g_strcmp0 (node, "project-switcher"))
+    {
+      GtkWidget *parent = gtk_widget_get_ancestor (widget, GTK_TYPE_POPOVER);
+      if (parent)
+        gtk_popover_popdown (GTK_POPOVER (parent));
+    }
+}
+
+typedef struct
+{
+  gchar *name;
+  gchar *text;
+  gint   delay;
+} IntroData;
+
+static void
+glade_window_populate_intro (GladeWindow *window)
+{
+  static IntroData intro_data[] = {
+
+    { "open-button",   "Start by opening a project", 4 },
+    { "recent-button", "a recently used one", 2 },
+    { "action-new",    NULL, 1 },
+    { "new-button",    "or create a new one", 3 },
+
+    { "inspector", "The object inspector moved from the right to the left", 3 },
+    { "editor",    "And the editor take all the space available on the right", 3 },
+
+    { "adaptor-chooser",       "This is the object class chooser\nIt replaces the old palette", 6 },
+    { "adaptor-search-button", "You can search and select any class supported by Glade", 5 },
+    { "adaptor-gtk-buttonbox", "Investigate most important Gtk groups", 4 },
+    { "adaptor-others-button", "And find classes from other libraries", 5 },
+
+    { "project-button",    "The project title is now an important part of the workflow", 6 },
+    { "project-buttonbox", "Where you have all the project related actions", 5 },
+    { "save-as-button",    "You can Save As...", 2 },
+    { "properties-button", "Edit it's properties", 2 },
+    { "close-button",      "Close it", 2 },
+    { "project-switcher",  "Also switch projects", 2 },
+
+    { "undo-button", "Undo", 1 },
+    { "redo-button", "Redo", 1 },
+    { "save-button", "and save button are directly accesible in the headerbar", 5 },
+    { "menu-button", "as well as less commonly used actions", 5 }
+  };
+  gint i;
+
+  g_signal_connect (window->priv->intro, "show-node",
+                    G_CALLBACK (on_intro_show_node),
+                    window);
+  g_signal_connect (window->priv->intro, "hide-node",
+                    G_CALLBACK (on_intro_hide_node),
+                    window);
+
+  for (i = 0; i < sizeof (intro_data) / sizeof (IntroData); i++)
+    {
+      IntroData *data = &intro_data[i];
+      glade_intro_script_add (window->priv->intro,
+                              data->name,
+                              data->text,
+                              data->delay);
+    }
+}
+
+static void
 glade_window_constructed (GObject *object)
 {
   GladeWindow *window = GLADE_WINDOW (object);
@@ -2463,6 +2581,9 @@ glade_window_constructed (GObject *object)
     gtkosx_application_ready (theApp);
   }
 #endif
+
+  priv->intro = glade_intro_new (GTK_WINDOW (window));
+  glade_window_populate_intro (window);
 }
 
 static void
@@ -2518,6 +2639,7 @@ glade_window_class_init (GladeWindowClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GladeWindow, about_menuitem);
 
   /* Actions */
+  gtk_widget_class_bind_template_child_private (widget_class, GladeWindow, new_action);
   gtk_widget_class_bind_template_child_private (widget_class, GladeWindow, save_action);
   gtk_widget_class_bind_template_child_private (widget_class, GladeWindow, quit_action);
   gtk_widget_class_bind_template_child_private (widget_class, GladeWindow, undo_action);
@@ -2555,6 +2677,7 @@ glade_window_class_init (GladeWindowClass *klass)
   gtk_widget_class_bind_template_callback (widget_class, on_stack_visible_child_notify);
   gtk_widget_class_bind_template_callback (widget_class, on_recent_menu_insert);
   gtk_widget_class_bind_template_callback (widget_class, on_recent_menu_remove);
+  gtk_widget_class_bind_template_callback (widget_class, on_intro_button_clicked);
 }
 
 
diff --git a/src/glade-window.css b/src/glade-window.css
index feae384..6239f51 100644
--- a/src/glade-window.css
+++ b/src/glade-window.css
@@ -67,7 +67,6 @@ GladeDesignView * {
 }
 
 #glade-brand-image {
-  padding-top: 40px;
   animation: brand-highlight 2s infinite alternate;
 }
 
@@ -88,3 +87,27 @@ GladeDesignView * {
   padding-bottom: 120px;
 }
 
+/* GladeIntro */
+
+popover.glade-intro {
+  padding: 1em;
+}
+
+popover.glade-intro label {
+  font-size: 18px;
+  font-weight: bold;
+}
+
+@keyframes widget-highlight {
+  from { box-shadow: 0px 0px 10px @theme_selected_bg_color, inset 0px 0px 4px  @theme_selected_bg_color; }
+  to   { box-shadow: 0px 0px 4px  @theme_selected_bg_color, inset 0px 0px 10px @theme_selected_bg_color; }
+}
+
+button.glade-intro-highlight,
+buttonbox.glade-intro-highlight > button,
+#adaptor-chooser.glade-intro-highlight button,
+#inspector.glade-intro-highlight > box > scrolledwindow > treeview,
+#editor.glade-intro-highlight > notebook > stack > scrolledwindow {
+  animation: widget-highlight 1s infinite alternate;
+}
+
diff --git a/src/glade.glade b/src/glade.glade
index e3cc3b4..2109d4f 100644
--- a/src/glade.glade
+++ b/src/glade.glade
@@ -434,6 +434,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
                 <property name="name">glade-brand-image</property>
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
+                <property name="margin_top">40</property>
                 <property name="pixel_size">250</property>
                 <property name="icon_name">glade-brand-symbolic</property>
               </object>
@@ -496,6 +497,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
                     <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkStack" id="inspectors_stack">
+                        <property name="name">inspector</property>
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="margin_left">3</property>
@@ -598,6 +600,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
                         <property name="orientation">vertical</property>
                         <child>
                           <object class="GladeAdaptorChooser" id="adaptor_chooser">
+                            <property name="name">adaptor-chooser</property>
                             <property name="visible">True</property>
                             <property name="can_focus">False</property>
                             <property name="border_width">2</property>
@@ -668,6 +671,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             </child>
             <child>
               <object class="GladeEditor" id="editor">
+                <property name="name">editor</property>
                 <property name="width_request">256</property>
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
@@ -706,6 +710,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
                 <property name="label" translatable="yes">Open</property>
                 <property name="use_action_appearance">True</property>
                 <property name="related_action">open_action</property>
+                <property name="name">open-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -721,6 +726,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             </child>
             <child>
               <object class="GtkMenuButton" id="recent_menu_button">
+                <property name="name">recent-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -750,6 +756,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
           <object class="GtkButton">
             <property name="use_action_appearance">False</property>
             <property name="related_action">new_action</property>
+            <property name="name">new-button</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
@@ -783,6 +790,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             <child>
               <object class="GtkMenuButton">
                 <property name="related_action">undo_action</property>
+                <property name="name">undo-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -835,6 +843,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             <child>
               <object class="GtkMenuButton">
                 <property name="related_action">redo_action</property>
+                <property name="name">redo-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -880,6 +889,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
         </child>
         <child type="title">
           <object class="GtkMenuButton" id="project_button">
+            <property name="name">project-button</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="receives_default">True</property>
@@ -930,6 +940,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
         </child>
         <child>
           <object class="GtkMenuButton">
+            <property name="name">menu-button</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
@@ -952,6 +963,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             <property name="label" translatable="yes">button</property>
             <property name="use_action_appearance">True</property>
             <property name="related_action">save_action</property>
+            <property name="name">save-button</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
@@ -962,6 +974,32 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
             <property name="position">3</property>
           </packing>
         </child>
+        <child>
+          <object class="GtkButton" id="intro_button">
+            <property name="name">intro-button</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="focus_on_click">False</property>
+            <property name="receives_default">True</property>
+            <property name="tooltip_text" translatable="yes">Start or resume interactive 
introduction</property>
+            <property name="relief">none</property>
+            <property name="use_underline">True</property>
+            <signal name="clicked" handler="on_intro_button_clicked" swapped="no"/>
+            <child>
+              <object class="GtkImage">
+                <property name="name">glade-brand-image</property>
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="icon_name">glade-brand-symbolic</property>
+                <property name="icon_size">3</property>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="pack_type">end</property>
+            <property name="position">7</property>
+          </packing>
+        </child>
       </object>
     </child>
   </template>
@@ -979,6 +1017,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
         <property name="spacing">6</property>
         <child>
           <object class="GtkButtonBox">
+            <property name="name">project-buttonbox</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="homogeneous">True</property>
@@ -987,6 +1026,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
               <object class="GtkButton">
                 <property name="use_action_appearance">False</property>
                 <property name="related_action">save_as_action</property>
+                <property name="name">save-as-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -1011,6 +1051,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
               <object class="GtkButton">
                 <property name="use_action_appearance">False</property>
                 <property name="related_action">properties_action</property>
+                <property name="name">properties-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -1035,6 +1076,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
               <object class="GtkButton">
                 <property name="use_action_appearance">False</property>
                 <property name="related_action">close_action</property>
+                <property name="name">close-button</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
@@ -1063,6 +1105,7 @@ Andreas Nilsson &lt;andreas andreasn se&gt;</property>
         </child>
         <child>
           <object class="GtkStackSwitcher">
+            <property name="name">project-switcher</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
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