[gnome-builder/wip/gtk4-port] plugins/editorui: setup label/menu for indentation

[Christian Hergert <chergert src gnome org>]

commit 5f58afc403f8d96709244b8b91d169fa86208121
Author: Christian Hergert <chergert redhat com>
Date:   Sat Apr 2 03:49:47 2022 -0700

    plugins/editorui: setup label/menu for indentation

 .../editorui/gbp-editorui-workspace-addin.c        | 87 ++++++++++++++++++----
 src/plugins/editorui/gtk/menus.ui                  | 74 +++++++++---------
 2 files changed, 109 insertions(+), 52 deletions(-)
---
diff --git a/src/plugins/editorui/gbp-editorui-workspace-addin.c 
b/src/plugins/editorui/gbp-editorui-workspace-addin.c
index ebd485711..f95d1177f 100644
--- a/src/plugins/editorui/gbp-editorui-workspace-addin.c
+++ b/src/plugins/editorui/gbp-editorui-workspace-addin.c
@@ -22,17 +22,23 @@
 
 #include "config.h"
 
+#include <glib/gi18n.h>
+
 #include <libide-editor.h>
 
 #include "gbp-editorui-workspace-addin.h"
 
 struct _GbpEditoruiWorkspaceAddin
 {
-  GObject        parent_instance;
+  GObject          parent_instance;
+
+  IdeWorkspace    *workspace;
+  PanelStatusbar  *statusbar;
 
-  IdeWorkspace  *workspace;
+  IdeSignalGroup  *view_signals;
 
-  GtkMenuButton *indentation;
+  GtkMenuButton   *indentation;
+  GtkLabel        *indentation_label;
 };
 
 #define clear_from_statusbar(s,w) clear_from_statusbar(s, (GtkWidget **)w)
@@ -48,12 +54,43 @@ static void
     }
 }
 
+static void
+notify_indentation_cb (GbpEditoruiWorkspaceAddin *self)
+{
+  IdeSourceView *view;
+
+  g_assert (GBP_IS_EDITORUI_WORKSPACE_ADDIN (self));
+
+  if ((view = ide_signal_group_get_target (self->view_signals)))
+    {
+      g_autofree char *label = NULL;
+      gboolean insert_spaces_instead_of_tabs;
+      guint tab_width;
+      int indent_width;
+
+      g_object_get (view,
+                    "tab-width", &tab_width,
+                    "indent-width", &indent_width,
+                    "insert-spaces-instead-of-tabs", &insert_spaces_instead_of_tabs,
+                    NULL);
+
+      if (indent_width <= 0)
+        indent_width = tab_width;
+
+      label = g_strdup_printf ("%s %u:%u",
+                               insert_spaces_instead_of_tabs ?  _("Space") : _("Tab"),
+                               indent_width, tab_width);
+      gtk_label_set_label (self->indentation_label, label);
+    }
+
+  gtk_widget_set_visible (GTK_WIDGET (self->indentation), view != NULL);
+}
+
 static void
 gbp_editorui_workspace_addin_load (IdeWorkspaceAddin *addin,
                                    IdeWorkspace      *workspace)
 {
   GbpEditoruiWorkspaceAddin *self = (GbpEditoruiWorkspaceAddin *)addin;
-  PanelStatusbar *statusbar;
   GMenu *menu;
 
   IDE_ENTRY;
@@ -62,16 +99,34 @@ gbp_editorui_workspace_addin_load (IdeWorkspaceAddin *addin,
   g_assert (IDE_IS_WORKSPACE (workspace));
 
   self->workspace = workspace;
-
-  statusbar = ide_workspace_get_statusbar (workspace);
-
-  menu = ide_application_get_menu_by_id (IDE_APPLICATION_DEFAULT, "editor-indentation");
+  self->statusbar = ide_workspace_get_statusbar (workspace);
+
+  self->view_signals = ide_signal_group_new (IDE_TYPE_SOURCE_VIEW);
+  ide_signal_group_connect_object (self->view_signals,
+                                   "notify::indent-width",
+                                   G_CALLBACK (notify_indentation_cb),
+                                   self,
+                                   G_CONNECT_SWAPPED);
+  ide_signal_group_connect_object (self->view_signals,
+                                   "notify::tab-width",
+                                   G_CALLBACK (notify_indentation_cb),
+                                   self,
+                                   G_CONNECT_SWAPPED);
+  ide_signal_group_connect_object (self->view_signals,
+                                   "notify::insert-spaces-instead-of-tabs",
+                                   G_CALLBACK (notify_indentation_cb),
+                                   self,
+                                   G_CONNECT_SWAPPED);
+
+  menu = ide_application_get_menu_by_id (IDE_APPLICATION_DEFAULT, "editorui-indent-menu");
+  self->indentation_label = g_object_new (GTK_TYPE_LABEL, NULL);
   self->indentation = g_object_new (GTK_TYPE_MENU_BUTTON,
                                     "menu-model", menu,
                                     "direction", GTK_ARROW_UP,
                                     "visible", FALSE,
+                                    "child", self->indentation_label,
                                     NULL);
-  panel_statusbar_add_suffix (statusbar, GTK_WIDGET (self->indentation));
+  panel_statusbar_add_suffix (self->statusbar, GTK_WIDGET (self->indentation));
 
   IDE_EXIT;
 }
@@ -81,18 +136,18 @@ gbp_editorui_workspace_addin_unload (IdeWorkspaceAddin *addin,
                                      IdeWorkspace      *workspace)
 {
   GbpEditoruiWorkspaceAddin *self = (GbpEditoruiWorkspaceAddin *)addin;
-  PanelStatusbar *statusbar;
 
   IDE_ENTRY;
 
   g_assert (GBP_IS_EDITORUI_WORKSPACE_ADDIN (self));
   g_assert (IDE_IS_WORKSPACE (workspace));
 
-  statusbar = ide_workspace_get_statusbar (workspace);
+  g_clear_object (&self->view_signals);
 
-  clear_from_statusbar (statusbar, &self->indentation);
+  clear_from_statusbar (self->statusbar, &self->indentation);
 
   self->workspace = NULL;
+  self->statusbar = NULL;
 
   IDE_EXIT;
 }
@@ -102,6 +157,7 @@ gbp_editorui_workspace_addin_page_changed (IdeWorkspaceAddin *addin,
                                            IdePage           *page)
 {
   GbpEditoruiWorkspaceAddin *self = (GbpEditoruiWorkspaceAddin *)addin;
+  IdeSourceView *view = NULL;
 
   g_assert (GBP_IS_EDITORUI_WORKSPACE_ADDIN (self));
   g_assert (!page || IDE_IS_PAGE (page));
@@ -109,7 +165,12 @@ gbp_editorui_workspace_addin_page_changed (IdeWorkspaceAddin *addin,
   if (!IDE_IS_EDITOR_PAGE (page))
     page = NULL;
 
-  gtk_widget_set_visible (GTK_WIDGET (self->indentation), page != NULL);
+  if (page != NULL)
+    view = ide_editor_page_get_view (IDE_EDITOR_PAGE (page));
+
+  ide_signal_group_set_target (self->view_signals, view);
+
+  notify_indentation_cb (self);
 }
 
 static void
diff --git a/src/plugins/editorui/gtk/menus.ui b/src/plugins/editorui/gtk/menus.ui
index e1f3d80f5..0cc939bd6 100644
--- a/src/plugins/editorui/gtk/menus.ui
+++ b/src/plugins/editorui/gtk/menus.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <menu id="editor-indentation">
-    <section>
+  <menu id="editorui-indent-menu">
+    <section id="editorui-indent-section">
       <attribute name="label" translatable="yes">Indentation</attribute>
       <item>
         <attribute name="label" translatable="yes">Tabs</attribute>
@@ -14,46 +14,42 @@
         <attribute name="role">radio</attribute>
       </item>
     </section>
-    <section>
-      <submenu>
+    <section id="editorui-tab-section">
+      <submenu id="editorui-tab-submenu">
         <attribute name="label" translatable="yes">Spaces per Tab</attribute>
-        <section>
-          <item>
-            <attribute name="label" translatable="yes">2</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">3</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">4</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">5</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">8</attribute>
-          </item>
-        </section>
+        <item>
+          <attribute name="label" translatable="yes">2</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">3</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">4</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">5</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">8</attribute>
+        </item>
       </submenu>
-      <submenu>
+      <submenu id="editorui-indent-submenu">
         <attribute name="label" translatable="yes">Indentation Size</attribute>
-        <section>
-          <item>
-            <attribute name="label" translatable="yes">2</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">3</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">4</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">5</attribute>
-          </item>
-          <item>
-            <attribute name="label" translatable="yes">8</attribute>
-          </item>
-        </section>
+        <item>
+          <attribute name="label" translatable="yes">2</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">3</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">4</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">5</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes">8</attribute>
+        </item>
       </submenu>
     </section>
   </menu>