Ported the panel update mechanisms to the Python API.

8 files changed, 133 insertions, 100 deletions

diff --git a/src/gui/panels/bintree.c b/src/gui/panels/bintree.c
index db5e774..c31bd88 100644
--- a/src/gui/panels/bintree.c
+++ b/src/gui/panels/bintree.c
@@ -190,7 +190,7 @@ struct _bintree_update_data
 static bool is_bintree_column_matching(const bintree_update_data *, GBinPortion *, gint, regmatch_t *);
 
 /* Prépare une opération de mise à jour de panneau. */
-static const char *g_bintree_panel_setup(const GBintreePanel *, unsigned int, size_t *, bintree_update_data **);
+static bool g_bintree_panel_setup(const GBintreePanel *, unsigned int, size_t *, bintree_update_data **, char **);
 
 /* Bascule l'affichage d'un panneau avant mise à jour. */
 static void g_bintree_panel_introduce(const GBintreePanel *, unsigned int, bintree_update_data *);
@@ -202,7 +202,7 @@ static void g_bintree_panel_process(const GBintreePanel *, unsigned int, GtkStat
 static void g_bintree_panel_conclude(GBintreePanel *, unsigned int, bintree_update_data *);
 
 /* Supprime les données dynamiques utilisées à la mise à jour. */
-static void g_bintree_panel_clean_data(GUpdatablePanel *, unsigned int, bintree_update_data *);
+static void g_bintree_panel_clean_data(const GUpdatablePanel *, unsigned int, bintree_update_data *);
 
 
 
@@ -1132,24 +1132,27 @@ static bool is_bintree_column_matching(const bintree_update_data *data, GBinPort
 *                uid   = identifiant de la phase de traitement.               *
 *                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
 *                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
 *                                                                             *
 *  Description : Prépare une opération de mise à jour de panneau.             *
 *                                                                             *
-*  Retour      : Description du message d'information.                        *
+*  Retour      : Bilan de la préparation.                                     *
 *                                                                             *
 *  Remarques   : -                                                            *
 *                                                                             *
 ******************************************************************************/
 
-static const char *g_bintree_panel_setup(const GBintreePanel *panel, unsigned int uid, size_t *count, bintree_update_data **data)
+static bool g_bintree_panel_setup(const GBintreePanel *panel, unsigned int uid, size_t *count, bintree_update_data **data, char **msg)
 {
-    const char *result;                     /* Message à retourner         */
+    bool result;                            /* Bilan à retourner           */
 #ifndef NDEBUG
     int ret;                                /* Bilan de mise en place      */
 #endif
     GtkBuilder *builder;                    /* Constructeur utilisé        */
     GtkTreeView *treeview;                  /* Arborescence graphique      */
 
+    result = true;
+
     *data = malloc(sizeof(bintree_update_data));
 
     switch (uid)
@@ -1159,7 +1162,7 @@ static const char *g_bintree_panel_setup(const GBintreePanel *panel, unsigned in
             *count = 0;
             (*data)->count = 0;
 
-            result = _("Loading portions contained in the binary format...");
+            *msg = strdup(_("Loading portions contained in the binary format..."));
 
             break;
 
@@ -1168,20 +1171,20 @@ static const char *g_bintree_panel_setup(const GBintreePanel *panel, unsigned in
             *count = panel->count;
             (*data)->count = panel->count;
 
-            result = _("Filtering portions contained in the binary format...");
+            *msg = strdup(_("Filtering portions contained in the binary format..."));
 
             break;
 
         default:    /* Pour GCC... */
             assert(false);
-            result = "";
+            result = false;
             break;
 
     }
 
     if (G_PANEL_ITEM(panel)->filter != NULL)
     {
-        (*data)->filter = (regex_t *)malloc(sizeof(regex_t));
+        (*data)->filter = malloc(sizeof(regex_t));
 
 #ifndef NDEBUG
         ret = regcomp((*data)->filter, G_PANEL_ITEM(panel)->filter, REG_EXTENDED | REG_ICASE);
@@ -1375,7 +1378,7 @@ static void g_bintree_panel_conclude(GBintreePanel *panel, unsigned int uid, bin
 *                                                                             *
 ******************************************************************************/
 
-static void g_bintree_panel_clean_data(GUpdatablePanel *panel, unsigned int uid, bintree_update_data *data)
+static void g_bintree_panel_clean_data(const GUpdatablePanel *panel, unsigned int uid, bintree_update_data *data)
 {
     size_t i;                               /* Boucle de parcours          */
 
diff --git a/src/gui/panels/errors.c b/src/gui/panels/errors.c
index d567511..2b5353f 100644
--- a/src/gui/panels/errors.c
+++ b/src/gui/panels/errors.c
@@ -178,7 +178,7 @@ struct _error_update_data
 
 
 /* Prépare une opération de mise à jour de panneau. */
-static const char *g_error_panel_setup(const GErrorPanel *, unsigned int, size_t *, error_update_data **);
+static bool g_error_panel_setup(const GErrorPanel *, unsigned int, size_t *, error_update_data **, char **);
 
 /* Bascule l'affichage d'un panneau avant mise à jour. */
 static void g_error_panel_introduce(const GErrorPanel *, unsigned int, error_update_data *);
@@ -1046,6 +1046,7 @@ static void on_error_selection_changed(GtkTreeSelection *selection, gpointer unu
 *                uid   = identifiant de la phase de traitement.               *
 *                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
 *                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
 *                                                                             *
 *  Description : Prépare une opération de mise à jour de panneau.             *
 *                                                                             *
@@ -1055,14 +1056,16 @@ static void on_error_selection_changed(GtkTreeSelection *selection, gpointer unu
 *                                                                             *
 ******************************************************************************/
 
-static const char *g_error_panel_setup(const GErrorPanel *panel, unsigned int uid, size_t *count, error_update_data **data)
+static bool g_error_panel_setup(const GErrorPanel *panel, unsigned int uid, size_t *count, error_update_data **data, char **msg)
 {
-    const char *result;                     /* Message à retourner         */
+    bool result;                            /* Bilan à retourner           */
     GBinFormat *format;                     /* Format du binaire           */
     size_t fcount;                          /* Quantité d'erreurs #1       */
     GArchProcessor *proc;                   /* Architecture du binaire     */
     size_t pcount;                          /* Quantité d'erreurs #2       */
 
+    result = true;
+
     *data = malloc(sizeof(error_update_data));
 
     switch (uid)
@@ -1087,7 +1090,7 @@ static const char *g_error_panel_setup(const GErrorPanel *panel, unsigned int ui
 
             *count = fcount + pcount;
 
-            result = _("Loading errors occurred during the disassembling process...");
+            *msg = strdup(_("Loading errors occurred during the disassembling process..."));
 
             (*data)->count = *count;
             (*data)->kept = 0;
@@ -1098,7 +1101,7 @@ static const char *g_error_panel_setup(const GErrorPanel *panel, unsigned int ui
 
             *count = panel->count;
 
-            result = _("Filtering errors occurred during the disassembling process...");
+            *msg = strdup(_("Filtering errors occurred during the disassembling process..."));
 
             (*data)->count = panel->count;
             (*data)->kept = 0;
@@ -1107,7 +1110,7 @@ static const char *g_error_panel_setup(const GErrorPanel *panel, unsigned int ui
 
         default:    /* Pour GCC... */
             assert(false);
-            result = "";
+            result = false;
             break;
 
     }
diff --git a/src/gui/panels/strings.c b/src/gui/panels/strings.c
index 33b715b..f9d6b00 100644
--- a/src/gui/panels/strings.c
+++ b/src/gui/panels/strings.c
@@ -211,7 +211,7 @@ static bool is_string_name_matching(const strings_update_data *, GtkTreeModel *,
 static bool is_string_value_matching(const strings_update_data *, GtkTreeModel *, GtkTreeIter *, regmatch_t *);
 
 /* Prépare une opération de mise à jour de panneau. */
-static const char *g_strings_panel_setup(const GStringsPanel *, unsigned int, size_t *, strings_update_data **);
+static bool g_strings_panel_setup(const GStringsPanel *, unsigned int, size_t *, strings_update_data **, char **);
 
 /* Bascule l'affichage d'un panneau avant mise à jour. */
 static void g_strings_panel_introduce(const GStringsPanel *, unsigned int, strings_update_data *);
@@ -223,7 +223,7 @@ static void g_strings_panel_process(const GStringsPanel *, unsigned int, GtkStat
 static void g_strings_panel_conclude(GStringsPanel *, unsigned int, strings_update_data *);
 
 /* Supprime les données dynamiques utilisées à la mise à jour. */
-static void g_strings_panel_clean_data(GUpdatablePanel *, unsigned int, strings_update_data *);
+static void g_strings_panel_clean_data(const GUpdatablePanel *, unsigned int, strings_update_data *);
 
 
 
@@ -1526,6 +1526,7 @@ static bool is_string_value_matching(const strings_update_data *data, GtkTreeMod
 *                uid   = identifiant de la phase de traitement.               *
 *                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
 *                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
 *                                                                             *
 *  Description : Prépare une opération de mise à jour de panneau.             *
 *                                                                             *
@@ -1535,14 +1536,16 @@ static bool is_string_value_matching(const strings_update_data *data, GtkTreeMod
 *                                                                             *
 ******************************************************************************/
 
-static const char *g_strings_panel_setup(const GStringsPanel *panel, unsigned int uid, size_t *count, strings_update_data **data)
+static bool g_strings_panel_setup(const GStringsPanel *panel, unsigned int uid, size_t *count, strings_update_data **data, char **msg)
 {
-    const char *result;                     /* Message à retourner         */
+    bool result;                            /* Bilan à retourner           */
     GBinFormat *format;                     /* Format du binaire           */
 #ifndef NDEBUG
     int ret;                                /* Bilan de mise en place      */
 #endif
 
+    result = true;
+
     *data = malloc(sizeof(strings_update_data));
 
     switch (uid)
@@ -1559,7 +1562,7 @@ static const char *g_strings_panel_setup(const GStringsPanel *panel, unsigned in
 
             (*data)->count = 0;
 
-            result = _("Loading strings available in the binary format...");
+            *msg = strdup(_("Loading strings available in the binary format..."));
 
             break;
 
@@ -1568,13 +1571,13 @@ static const char *g_strings_panel_setup(const GStringsPanel *panel, unsigned in
             *count = panel->count;
             (*data)->count = panel->count;
 
-            result = _("Filtering strings available in the binary format...");
+            *msg = strdup(_("Filtering strings available in the binary format..."));
 
             break;
 
         default:    /* Pour GCC... */
             assert(false);
-            result = "";
+            result = false;
             break;
 
     }
@@ -1735,7 +1738,7 @@ static void g_strings_panel_conclude(GStringsPanel *panel, unsigned int uid, str
 *                                                                             *
 ******************************************************************************/
 
-static void g_strings_panel_clean_data(GUpdatablePanel *panel, unsigned int uid, strings_update_data *data)
+static void g_strings_panel_clean_data(const GUpdatablePanel *panel, unsigned int uid, strings_update_data *data)
 {
     if (data->filter != NULL)
     {
diff --git a/src/gui/panels/symbols.c b/src/gui/panels/symbols.c
index 152d705..ab7a414 100644
--- a/src/gui/panels/symbols.c
+++ b/src/gui/panels/symbols.c
@@ -218,7 +218,7 @@ struct _symbols_update_data
 static bool is_symbol_matching(const symbols_update_data *, const GBinSymbol *, regmatch_t *);
 
 /* Prépare une opération de mise à jour de panneau. */
-static const char *g_symbols_panel_setup(const GSymbolsPanel *, unsigned int, size_t *, symbols_update_data **);
+static bool g_symbols_panel_setup(const GSymbolsPanel *, unsigned int, size_t *, symbols_update_data **, char **);
 
 /* Bascule l'affichage d'un panneau avant mise à jour. */
 static void g_symbols_panel_introduce(const GSymbolsPanel *, unsigned int, symbols_update_data *);
@@ -230,7 +230,7 @@ static void g_symbols_panel_process(const GSymbolsPanel *, unsigned int, GtkStat
 static void g_symbols_panel_conclude(GSymbolsPanel *, unsigned int, symbols_update_data *);
 
 /* Supprime les données dynamiques utilisées à la mise à jour. */
-static void g_symbols_panel_clean_data(GUpdatablePanel *, unsigned int, symbols_update_data *);
+static void g_symbols_panel_clean_data(const GUpdatablePanel *, unsigned int, symbols_update_data *);
 
 
 
@@ -1614,6 +1614,7 @@ static bool is_symbol_matching(const symbols_update_data *data, const GBinSymbol
 *                uid   = identifiant de la phase de traitement.               *
 *                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
 *                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
 *                                                                             *
 *  Description : Prépare une opération de mise à jour de panneau.             *
 *                                                                             *
@@ -1623,9 +1624,9 @@ static bool is_symbol_matching(const symbols_update_data *data, const GBinSymbol
 *                                                                             *
 ******************************************************************************/
 
-static const char *g_symbols_panel_setup(const GSymbolsPanel *panel, unsigned int uid, size_t *count, symbols_update_data **data)
+static bool g_symbols_panel_setup(const GSymbolsPanel *panel, unsigned int uid, size_t *count, symbols_update_data **data, char **msg)
 {
-    const char *result;                     /* Message à retourner         */
+    bool result;                            /* Bilan à retourner           */
     GBinFormat *format;                     /* Format du binaire           */
 #ifndef NDEBUG
     int ret;                                /* Bilan de mise en place      */
@@ -1633,6 +1634,8 @@ static const char *g_symbols_panel_setup(const GSymbolsPanel *panel, unsigned in
     GtkBuilder *builder;                    /* Constructeur utilisé        */
     GtkTreeView *treeview;                  /* Arborescence graphique      */
 
+    result = true;
+
     *data = malloc(sizeof(symbols_update_data));
 
     switch (uid)
@@ -1649,7 +1652,7 @@ static const char *g_symbols_panel_setup(const GSymbolsPanel *panel, unsigned in
 
             (*data)->count = 0;
 
-            result = _("Loading symbols registered for the binary format...");
+            *msg = strdup(_("Loading symbols registered for the binary format..."));
 
             break;
 
@@ -1658,13 +1661,13 @@ static const char *g_symbols_panel_setup(const GSymbolsPanel *panel, unsigned in
             *count = panel->count;
             (*data)->count = panel->count;
 
-            result = _("Filtering symbols registered for the binary format...");
+            *msg = strdup(_("Filtering symbols registered for the binary format..."));
 
             break;
 
         default:    /* Pour GCC... */
             assert(false);
-            result = "";
+            result = false;
             break;
 
     }
@@ -1873,7 +1876,7 @@ static void g_symbols_panel_conclude(GSymbolsPanel *panel, unsigned int uid, sym
 *                                                                             *
 ******************************************************************************/
 
-static void g_symbols_panel_clean_data(GUpdatablePanel *panel, unsigned int uid, symbols_update_data *data)
+static void g_symbols_panel_clean_data(const GUpdatablePanel *panel, unsigned int uid, symbols_update_data *data)
 {
     size_t i;                               /* Boucle de parcours          */
 
diff --git a/src/gui/panels/symbols.ui b/src/gui/panels/symbols.ui
index 3c34a29..8e54656 100644
--- a/src/gui/panels/symbols.ui
+++ b/src/gui/panels/symbols.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.21.0 -->
+<!-- Generated with glade 3.37.0 -->
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkTreeStore" id="store">
@@ -28,51 +28,51 @@
     <property name="model">store</property>
   </object>
   <object class="GtkTreeModelFilter" id="filter">
-    <property name="child_model">sorter</property>
+    <property name="child-model">sorter</property>
   </object>
   <object class="GtkImage" id="symbol_class_classic.png">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="resource">/org/chrysalide/gui/panels/../../../pixmaps/symbol_class_classic.png</property>
   </object>
   <object class="GtkImage" id="tbutton_collapse.png">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="resource">/org/chrysalide/gui/panels/../../../pixmaps/tbutton_collapse.png</property>
   </object>
   <object class="GtkImage" id="tbutton_expand.png">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="resource">/org/chrysalide/gui/panels/../../../pixmaps/tbutton_expand.png</property>
   </object>
   <object class="GtkImage" id="tbutton_list_view.png">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="resource">/org/chrysalide/gui/panels/../../../pixmaps/tbutton_list_view.png</property>
   </object>
   <object class="GtkImage" id="tbutton_tree_view.png">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="resource">/org/chrysalide/gui/panels/../../../pixmaps/tbutton_tree_view.png</property>
   </object>
   <object class="GtkOffscreenWindow">
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <child>
       <object class="GtkBox" id="box">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkToolbar">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <child>
               <object class="GtkRadioToolButton" id="list_display">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="tooltip_text" translatable="yes">Show symbols using a list view</property>
-                <property name="use_underline">True</property>
-                <property name="icon_widget">tbutton_list_view.png</property>
+                <property name="can-focus">False</property>
+                <property name="tooltip-text" translatable="yes">Show symbols using a list view</property>
+                <property name="use-underline">True</property>
+                <property name="icon-widget">tbutton_list_view.png</property>
                 <property name="active">True</property>
                 <property name="group">tree_display</property>
                 <signal name="toggled" handler="on_symbols_list_display_toggle" swapped="no"/>
@@ -85,10 +85,10 @@
             <child>
               <object class="GtkRadioToolButton" id="tree_display">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="tooltip_text" translatable="yes">Show symbols using a tree view</property>
-                <property name="use_underline">True</property>
-                <property name="icon_widget">tbutton_tree_view.png</property>
+                <property name="can-focus">False</property>
+                <property name="tooltip-text" translatable="yes">Show symbols using a tree view</property>
+                <property name="use-underline">True</property>
+                <property name="icon-widget">tbutton_tree_view.png</property>
                 <signal name="toggled" handler="on_symbols_tree_display_toggle" swapped="no"/>
               </object>
               <packing>
@@ -99,7 +99,7 @@
             <child>
               <object class="GtkSeparatorToolItem">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -109,10 +109,10 @@
             <child>
               <object class="GtkToolButton" id="collapse">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="tooltip_text" translatable="yes">Collapse all symbol nodes in the tree view</property>
-                <property name="use_underline">True</property>
-                <property name="icon_widget">tbutton_collapse.png</property>
+                <property name="can-focus">False</property>
+                <property name="tooltip-text" translatable="yes">Collapse all symbol nodes in the tree view</property>
+                <property name="use-underline">True</property>
+                <property name="icon-widget">tbutton_collapse.png</property>
                 <signal name="clicked" handler="reorganize_symbols_tree_view" swapped="no"/>
               </object>
               <packing>
@@ -123,10 +123,10 @@
             <child>
               <object class="GtkToolButton" id="expand">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="tooltip_text" translatable="yes">Expand all symbol nodes in the tree view</property>
-                <property name="use_underline">True</property>
-                <property name="icon_widget">tbutton_expand.png</property>
+                <property name="can-focus">False</property>
+                <property name="tooltip-text" translatable="yes">Expand all symbol nodes in the tree view</property>
+                <property name="use-underline">True</property>
+                <property name="icon-widget">tbutton_expand.png</property>
                 <signal name="clicked" handler="reorganize_symbols_tree_view" swapped="no"/>
               </object>
               <packing>
@@ -137,10 +137,10 @@
             <child>
               <object class="GtkToolButton" id="classes">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="tooltip_text" translatable="yes">Show all classes in the tree view</property>
-                <property name="use_underline">True</property>
-                <property name="icon_widget">symbol_class_classic.png</property>
+                <property name="can-focus">False</property>
+                <property name="tooltip-text" translatable="yes">Show all classes in the tree view</property>
+                <property name="use-underline">True</property>
+                <property name="icon-widget">symbol_class_classic.png</property>
                 <signal name="clicked" handler="reorganize_symbols_tree_view" swapped="no"/>
               </object>
               <packing>
@@ -151,7 +151,7 @@
             <child>
               <object class="GtkSeparatorToolItem">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -161,15 +161,15 @@
             <child>
               <object class="GtkToolItem">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <child>
                   <object class="GtkSearchEntry">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
-                    <property name="tooltip_text" translatable="yes">Filter symbols using POSIX extended regular expressions</property>
-                    <property name="primary_icon_name">edit-find-symbolic</property>
-                    <property name="primary_icon_activatable">False</property>
-                    <property name="primary_icon_sensitive">False</property>
+                    <property name="can-focus">True</property>
+                    <property name="tooltip-text" translatable="yes">Filter symbols using POSIX extended regular expressions</property>
+                    <property name="primary-icon-name">edit-find-symbolic</property>
+                    <property name="primary-icon-activatable">False</property>
+                    <property name="primary-icon-sensitive">False</property>
                     <signal name="focus-in-event" handler="track_focus_change_in_text_area" swapped="no"/>
                     <signal name="focus-out-event" handler="track_focus_change_in_text_area" swapped="no"/>
                     <signal name="search-changed" handler="on_symbols_filter_changed" swapped="no"/>
@@ -191,20 +191,20 @@
         <child>
           <object class="GtkStack" id="stack">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <child>
               <object class="GtkScrolledWindow" id="content">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="shadow_type">in</property>
+                <property name="can-focus">True</property>
+                <property name="shadow-type">in</property>
                 <child>
                   <object class="GtkTreeView" id="treeview">
                     <property name="name">treeview</property>
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
+                    <property name="can-focus">True</property>
                     <property name="model">filter</property>
-                    <property name="headers_visible">False</property>
-                    <property name="search_column">2</property>
+                    <property name="headers-visible">False</property>
+                    <property name="search-column">2</property>
                     <child internal-child="selection">
                       <object class="GtkTreeSelection">
                         <signal name="changed" handler="on_symbols_selection_change" swapped="no"/>
@@ -221,7 +221,7 @@
             <child>
               <object class="GtkSpinner" id="mask">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="active">True</property>
               </object>
               <packing>
@@ -239,8 +239,5 @@
         </child>
       </object>
     </child>
-    <child type="titlebar">
-      <placeholder/>
-    </child>
   </object>
 </interface>
diff --git a/src/gui/panels/updating-int.h b/src/gui/panels/updating-int.h
index f8d0760..1b742e8 100644
--- a/src/gui/panels/updating-int.h
+++ b/src/gui/panels/updating-int.h
@@ -30,7 +30,7 @@
 
 
 /* Prépare une opération de mise à jour de panneau. */
-typedef const char * (* setup_updatable_cb) (const GUpdatablePanel *, unsigned int, size_t *, void **);
+typedef bool (* setup_updatable_cb) (const GUpdatablePanel *, unsigned int, size_t *, void **, char **);
 
 /* Obtient le groupe de travail dédié à une mise à jour. */
 typedef wgroup_id_t (* get_updatable_group_cb) (const GUpdatablePanel *);
@@ -45,7 +45,7 @@ typedef void (* process_updatable_cb) (const GUpdatablePanel *, unsigned int, Gt
 typedef void (* conclude_updatable_cb) (GUpdatablePanel *, unsigned int, void *);
 
 /* Supprime les données dynamiques utilisées à la mise à jour. */
-typedef void (* clean_updatable_data_cb) (GUpdatablePanel *, unsigned int, void *);
+typedef void (* clean_updatable_data_cb) (const GUpdatablePanel *, unsigned int, void *);
 
 
 /* Mécanisme de mise à jour d'un panneau (interface) */
diff --git a/src/gui/panels/updating.c b/src/gui/panels/updating.c
index 31f42c3..c5d59e7 100644
--- a/src/gui/panels/updating.c
+++ b/src/gui/panels/updating.c
@@ -55,7 +55,7 @@ struct _GPanelUpdate
 
     size_t max;                             /* Marge de progression finale */
     void *data;                             /* Données utiles au traitement*/
-    const char *msg;                        /* Description d'activité      */
+    char *msg;                              /* Description d'activité      */
 
 };
 
@@ -120,24 +120,30 @@ static void g_updatable_panel_default_init(GUpdatablePanelInterface *iface)
 *                uid   = identifiant de la phase de traitement.               *
 *                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
 *                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
 *                                                                             *
 *  Description : Prépare une opération de mise à jour de panneau.             *
 *                                                                             *
-*  Retour      : Description du message d'information.                        *
+*  Retour      : Bilan de la préparation.                                     *
 *                                                                             *
 *  Remarques   : -                                                            *
 *                                                                             *
 ******************************************************************************/
 
-const char *g_updatable_panel_setup(const GUpdatablePanel *panel, unsigned int uid, size_t *count, void **data)
+bool g_updatable_panel_setup(const GUpdatablePanel *panel, unsigned int uid, size_t *count, void **data, char **msg)
 {
+    bool result;                            /* Bilan à retourner           */
     GUpdatablePanelIface *iface;            /* Interface utilisée          */
 
     iface = G_UPDATABLE_PANEL_GET_IFACE(panel);
 
+    *count = 0;
     *data = NULL;
+    *msg = NULL;
 
-    return iface->setup(panel, uid, count, data);
+    result = iface->setup(panel, uid, count, data, msg);
+
+    return result;
 
 }
 
@@ -148,7 +154,7 @@ const char *g_updatable_panel_setup(const GUpdatablePanel *panel, unsigned int u
 *                                                                             *
 *  Description : Obtient le groupe de travail dédié à une mise à jour.        *
 *                                                                             *
-*  Retour      : -                                                            *
+*  Retour      : Identifiant de groupe de travail.                            *
 *                                                                             *
 *  Remarques   : -                                                            *
 *                                                                             *
@@ -259,7 +265,7 @@ void g_updatable_panel_conclude(GUpdatablePanel *panel, unsigned int uid, void *
 *                                                                             *
 ******************************************************************************/
 
-void g_updatable_panel_clean_data(GUpdatablePanel *panel, unsigned int uid, void *data)
+void g_updatable_panel_clean_data(const GUpdatablePanel *panel, unsigned int uid, void *data)
 {
     GUpdatablePanelIface *iface;            /* Interface utilisée          */
 
@@ -324,6 +330,12 @@ static void g_panel_update_class_init(GPanelUpdateClass *klass)
 
 static void g_panel_update_init(GPanelUpdate *update)
 {
+    update->panel = NULL;
+    update->uid = -1;
+
+    update->max = 0;
+    update->data = NULL;
+    update->msg = NULL;
 
 }
 
@@ -342,7 +354,10 @@ static void g_panel_update_init(GPanelUpdate *update)
 
 static void g_panel_update_dispose(GPanelUpdate *update)
 {
-    g_object_unref(G_OBJECT(update->panel));
+    if (update->panel != NULL)
+        g_updatable_panel_clean_data(update->panel, update->uid, update->data);
+
+    g_clear_object(&update->panel);
 
     G_OBJECT_CLASS(g_panel_update_parent_class)->dispose(G_OBJECT(update));
 
@@ -363,11 +378,12 @@ static void g_panel_update_dispose(GPanelUpdate *update)
 
 static void g_panel_update_finalize(GPanelUpdate *update)
 {
-    g_updatable_panel_clean_data(update->panel, update->uid, update->data);
-
     if (update->data != NULL)
         free(update->data);
 
+    if (update->msg != NULL)
+        free(update->msg);
+
     G_OBJECT_CLASS(g_panel_update_parent_class)->finalize(G_OBJECT(update));
 
 }
@@ -389,6 +405,7 @@ static void g_panel_update_finalize(GPanelUpdate *update)
 GPanelUpdate *g_panel_update_new(GUpdatablePanel *panel, unsigned int uid)
 {
     GPanelUpdate *result;                   /* Tâche à retourner           */
+    bool status;                            /* Bilan de la préparation     */
 
     result = g_object_new(G_TYPE_PANEL_UPDATE, NULL);
 
@@ -397,7 +414,10 @@ GPanelUpdate *g_panel_update_new(GUpdatablePanel *panel, unsigned int uid)
 
     result->uid = uid;
 
-    result->msg = g_updatable_panel_setup(panel, uid, &result->max, &result->data);
+    status = g_updatable_panel_setup(panel, uid, &result->max, &result->data, &result->msg);
+
+    if (!status)
+        g_clear_object(&result);
 
     return result;
 
@@ -477,15 +497,19 @@ void run_panel_update(GUpdatablePanel *panel, unsigned int uid)
 
     update = g_panel_update_new(panel, uid);
 
-    g_signal_connect_to_main(update, "work-completed", G_CALLBACK(conclude_panel_update), panel,
-                             g_cclosure_marshal_VOID__VOID);
+    if (update != NULL)
+    {
+        g_signal_connect_to_main(update, "work-completed", G_CALLBACK(conclude_panel_update), panel,
+                                 g_cclosure_marshal_VOID__VOID);
+
+        g_updatable_panel_introduce(panel, uid, update->data);
 
-    g_updatable_panel_introduce(panel, uid, update->data);
+        queue = get_work_queue();
 
-    queue = get_work_queue();
+        gid = g_updatable_panel_get_group(panel);
 
-    gid = g_updatable_panel_get_group(panel);
+        g_work_queue_schedule_work(queue, G_DELAYED_WORK(update), gid);
 
-    g_work_queue_schedule_work(queue, G_DELAYED_WORK(update), gid);
+    }
 
 }
diff --git a/src/gui/panels/updating.h b/src/gui/panels/updating.h
index 8c44795..2293a02 100644
--- a/src/gui/panels/updating.h
+++ b/src/gui/panels/updating.h
@@ -56,7 +56,7 @@ typedef struct _GUpdatablePanelIface GUpdatablePanelIface;
 GType g_updatable_panel_get_type(void) G_GNUC_CONST;
 
 /* Prépare une opération de mise à jour de panneau. */
-const char *g_updatable_panel_setup(const GUpdatablePanel *, unsigned int, size_t *, void **);
+bool g_updatable_panel_setup(const GUpdatablePanel *, unsigned int, size_t *, void **, char **);
 
 /* Obtient le groupe de travail dédié à une mise à jour. */
 wgroup_id_t g_updatable_panel_get_group(const GUpdatablePanel *);
@@ -71,7 +71,7 @@ void g_updatable_panel_process(const GUpdatablePanel *, unsigned int, GtkStatusS
 void g_updatable_panel_conclude(GUpdatablePanel *, unsigned int, void *);
 
 /* Supprime les données dynamiques utilisées à la mise à jour. */
-void g_updatable_panel_clean_data(GUpdatablePanel *, unsigned int, void *);
+void g_updatable_panel_clean_data(const GUpdatablePanel *, unsigned int, void *);