[evolution] Add generic 'express mode' conditionals to the UI XML

[Matthew Barnes <mbarnes src gnome org>]

commit 304777ae4cd03026fcee98c0863e9e43f483c97a
Author: Michael Meeks <michael meeks novell com>
Date:   Wed Feb 24 17:41:10 2010 +0000

    Add generic 'express mode' conditionals to the UI XML

 e-util/e-util.c                  |   45 +++++++++++++++++++++++++++++++++----
 e-util/e-util.h                  |    3 +-
 mail/e-mail-browser.c            |    3 +-
 modules/mail/e-mail-shell-view.c |    5 +++-
 shell/e-shell-view.c             |    5 +++-
 shell/e-shell-window-actions.c   |    7 ++++-
 ui/evolution-mail-reader.ui      |    4 +++
 ui/evolution-shell.ui            |    3 ++
 8 files changed, 64 insertions(+), 11 deletions(-)
---
diff --git a/e-util/e-util.c b/e-util/e-util.c
index 202c956..16f6651 100644
--- a/e-util/e-util.c
+++ b/e-util/e-util.c
@@ -314,28 +314,63 @@ e_load_ui_builder_definition (GtkBuilder *builder,
  * e_load_ui_manager_definition:
  * @ui_manager: a #GtkUIManager
  * @basename: basename of the UI definition file
+ * @is_express: are we in 'express' mode ?
  *
  * Loads a UI definition into @ui_manager from Evolution's UI directory.
  * Failure here is fatal, since the application can't function without
- * its UI definitions.
+ * its UI definitions. Depending on the mode signalled by @is_express a
+ * simplified version of the UI may be presented.
  *
  * Returns: The merge ID for the merged UI.  The merge ID can be used to
  *          unmerge the UI with gtk_ui_manager_remove_ui().
  **/
 guint
 e_load_ui_manager_definition (GtkUIManager *ui_manager,
-                              const gchar *basename)
+                              const gchar *basename,
+			      gboolean is_express)
 {
 	gchar *filename;
-	guint merge_id;
+	guint merge_id = 0;
 	GError *error = NULL;
+	gchar *buffer;
 
 	g_return_val_if_fail (GTK_IS_UI_MANAGER (ui_manager), 0);
 	g_return_val_if_fail (basename != NULL, 0);
 
 	filename = g_build_filename (EVOLUTION_UIDIR, basename, NULL);
-	merge_id = gtk_ui_manager_add_ui_from_file (
-		ui_manager, filename, &error);
+
+	/*
+	 * Very simple line based pre-processing based on comments:
+	 * <!-- if [!]EXPRESS --> ... <!-- endif -->
+	 */
+	if (g_file_get_contents (filename, &buffer, NULL, &error)) {
+		int i;
+		gchar *filtered, **lines;
+		gboolean include = TRUE;
+
+		lines = g_strsplit (buffer, "\n", -1);
+		for (i = 0; lines[i]; i++) {
+			char *p;
+			if ((p = strstr (lines[i], "<!-- if "))) {
+				gboolean not_express = lines[i][8] == '!';
+				lines[i][0] = '\0';
+				include = is_express ^ not_express;
+				fprintf (stderr, "not exporess: %d from '%s' include to %d\n",
+					 not_express, lines[i], include);
+			} else if ((p = strstr (lines[i], "<!-- endif"))) {
+				lines[i][0] = '\0';
+				include = TRUE;
+			}
+			if (!include)
+				lines[i][0] = '\0';
+		}
+		filtered = g_strjoinv("\n", lines);
+
+		merge_id = gtk_ui_manager_add_ui_from_string (ui_manager, filtered, -1, &error);
+
+		g_free (filtered);
+	}
+
 	g_free (filename);
 
 	if (error != NULL) {
diff --git a/e-util/e-util.h b/e-util/e-util.h
index 45d3801..5d36959 100644
--- a/e-util/e-util.h
+++ b/e-util/e-util.h
@@ -66,7 +66,8 @@ GtkActionGroup *e_lookup_action_group		(GtkUIManager *ui_manager,
 void		e_load_ui_builder_definition	(GtkBuilder *builder,
 						 const gchar *basename);
 guint		e_load_ui_manager_definition	(GtkUIManager *ui_manager,
-						 const gchar *basename);
+						 const gchar *basename,
+						 gboolean express);
 gint		e_action_compare_by_label	(GtkAction *action1,
 						 GtkAction *action2);
 void		e_action_group_remove_all_actions
diff --git a/mail/e-mail-browser.c b/mail/e-mail-browser.c
index 59c09b6..91dacbb 100644
--- a/mail/e-mail-browser.c
+++ b/mail/e-mail-browser.c
@@ -505,7 +505,8 @@ mail_browser_constructed (GObject *object)
 		G_N_ELEMENTS (mail_browser_popup_entries));
 	gtk_ui_manager_insert_action_group (ui_manager, action_group, 0);
 
-	e_load_ui_manager_definition (ui_manager, E_MAIL_READER_UI_DEFINITION);
+	e_load_ui_manager_definition (ui_manager, E_MAIL_READER_UI_DEFINITION,
+				      e_shell_get_express_mode (shell));
 	gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, NULL);
 
 	merge_id = gtk_ui_manager_new_merge_id (ui_manager);
diff --git a/modules/mail/e-mail-shell-view.c b/modules/mail/e-mail-shell-view.c
index b85d146..d922689 100644
--- a/modules/mail/e-mail-shell-view.c
+++ b/modules/mail/e-mail-shell-view.c
@@ -177,8 +177,11 @@ mail_shell_view_toggled (EShellView *shell_view)
 	basename = E_MAIL_READER_UI_DEFINITION;
 
 	if (view_is_active && priv->merge_id == 0) {
+		gboolean express = e_shell_get_express_mode (
+			e_shell_backend_get_shell (
+				e_shell_view_get_shell_backend (shell_view)));
 		priv->merge_id = e_load_ui_manager_definition (
-			ui_manager, basename);
+			ui_manager, basename, express);
 		e_mail_reader_create_charset_menu (
 			E_MAIL_READER (priv->mail_shell_content),
 			ui_manager, priv->merge_id);
diff --git a/shell/e-shell-view.c b/shell/e-shell-view.c
index 6135b58..d029627 100644
--- a/shell/e-shell-view.c
+++ b/shell/e-shell-view.c
@@ -594,8 +594,11 @@ shell_view_toggled (EShellView *shell_view)
 	id = shell_view_class->ui_manager_id;
 
 	if (view_is_active && priv->merge_id == 0) {
+		gboolean express = e_shell_get_express_mode (
+			e_shell_backend_get_shell (
+				e_shell_view_get_shell_backend (shell_view)));
 		priv->merge_id = e_load_ui_manager_definition (
-			ui_manager, basename);
+			ui_manager, basename, express);
 		e_plugin_ui_enable_manager (ui_manager, id);
 
 	} else if (!view_is_active && priv->merge_id != 0) {
diff --git a/shell/e-shell-window-actions.c b/shell/e-shell-window-actions.c
index d751251..b29a96e 100644
--- a/shell/e-shell-window-actions.c
+++ b/shell/e-shell-window-actions.c
@@ -1867,13 +1867,16 @@ e_shell_window_actions_init (EShellWindow *shell_window)
 	GtkActionGroup *action_group;
 	EFocusTracker *focus_tracker;
 	GtkUIManager *ui_manager;
+	gboolean express;
 	gchar *path;
-
+	
 	g_return_if_fail (E_IS_SHELL_WINDOW (shell_window));
 
+	express = e_shell_get_express_mode (
+		e_shell_window_get_shell (shell_window));
 	ui_manager = e_shell_window_get_ui_manager (shell_window);
 
-	e_load_ui_manager_definition (ui_manager, "evolution-shell.ui");
+	e_load_ui_manager_definition (ui_manager, "evolution-shell.ui", express);
 
 	/* Shell Actions */
 	action_group = ACTION_GROUP (SHELL);
diff --git a/ui/evolution-mail-reader.ui b/ui/evolution-mail-reader.ui
index dc87cf0..b5aef12 100644
--- a/ui/evolution-mail-reader.ui
+++ b/ui/evolution-mail-reader.ui
@@ -120,15 +120,19 @@
         </menu>
       </toolitem>
       <separator/>
+<!-- if !EXPRESS -->
       <toolitem action='mail-print'/>
+<!-- endif -->
       <toolitem action='mail-delete'/>
       <toolitem action='mail-mark-junk'/>
       <toolitem action='mail-mark-notjunk'/>
     </placeholder>
     <separator/>
     <placeholder name='mail-toolbar-navigation'>
+<!-- if !EXPRESS -->
       <toolitem action='mail-previous'/>
       <toolitem action='mail-next'/>
+<!-- endif -->
     </placeholder>
   </toolbar>
   <popup name='mail-message-popup'>
diff --git a/ui/evolution-shell.ui b/ui/evolution-shell.ui
index fab9255..eb11673 100644
--- a/ui/evolution-shell.ui
+++ b/ui/evolution-shell.ui
@@ -86,5 +86,8 @@
     <toolitem action='send-receive'/>
     <separator/>
     <placeholder name='toolbar-actions'/>
+<!-- if !EXPRESS -->
+    <toolitem action='preferences'/>
+<!-- endif -->
   </toolbar>
 </ui>