[latexila] Create TabLabel class, a subclass of TeplTabLabel

[Sébastien Wilmet <swilmet src gnome org>]

commit ce498ff22ce21a464975473bec258c91da96f293
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Aug 12 14:40:55 2017 +0200

    Create TabLabel class, a subclass of TeplTabLabel

 po/POTFILES.in        |    1 +
 po/POTFILES.skip      |    1 +
 src/Makefile.am       |    1 +
 src/document_tab.vala |   44 ++------------------------------
 src/tab_label.vala    |   67 +++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 73 insertions(+), 41 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 176ec7b..51b6488 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -62,6 +62,7 @@ src/structure_model.vala
 src/structure.vala
 src/symbols.vala
 src/symbols_view.vala
+src/tab_label.vala
 [type: gettext/glade]src/ui/menus.ui
 [type: gettext/glade]src/ui/preferences_dialog.ui
 src/utils.vala
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index b1f56b6..443f15d 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -43,6 +43,7 @@ src/structure_model.c
 src/symbols.c
 src/symbols_view.c
 src/synctex.c
+src/tab_label.c
 src/templates.c
 src/templates_dialogs.c
 src/utils.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 0b75eee..b916083 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -60,6 +60,7 @@ vala_files =                          \
        structure.vala                  \
        symbols.vala                    \
        symbols_view.vala               \
+       tab_label.vala                  \
        utils.vala
 
 latexila_SOURCES =                             \
diff --git a/src/document_tab.vala b/src/document_tab.vala
index a337ff7..68c43d5 100644
--- a/src/document_tab.vala
+++ b/src/document_tab.vala
@@ -31,7 +31,7 @@ public class DocumentTab : Tepl.Tab
         get { return get_buffer () as Document; }
     }
 
-    private Tepl.TabLabel _label;
+    private TabLabel _label;
 
     private bool ask_if_externally_modified = false;
 
@@ -123,15 +123,11 @@ public class DocumentTab : Tepl.Tab
     {
         document.tab = this;
 
-        document.notify["location"].connect (update_label_tooltip);
-        document.notify["project-id"].connect (update_label_tooltip);
-
         document_view.focus_in_event.connect (view_focused_in);
 
         view.show_all ();
 
-        _label = new Tepl.TabLabel (this);
-        update_label_tooltip ();
+        _label = new TabLabel (this);
         _label.show ();
 
         /* auto save */
@@ -151,45 +147,11 @@ public class DocumentTab : Tepl.Tab
         });
     }
 
-    public Tepl.TabLabel get_label ()
+    public TabLabel get_label ()
     {
         return _label;
     }
 
-    private void update_label_tooltip ()
-    {
-        if (document.location == null)
-        {
-            _label.tooltip_markup = "";
-            return;
-        }
-
-        _label.tooltip_markup = document.get_uri_for_display ();
-
-        Project? project = document.get_project ();
-        if (project == null)
-            return;
-
-        if (project.main_file.equal (document.location))
-            _label.tooltip_markup += "\n<b>" + _("Project main file") + "</b>";
-        else
-            _label.tooltip_markup += "\n<b>" + _("Project main file:") + "</b> "
-                + get_main_file_relative_path ();
-    }
-
-    private string? get_main_file_relative_path ()
-    {
-        Project? project = document.get_project ();
-        if (project == null)
-            return null;
-
-        File origin = document.location;
-        File target = project.main_file;
-        File common_dir = project.directory;
-
-        return Utils.get_relative_path (origin, target, common_dir);
-    }
-
     public string get_menu_tip ()
     {
         return _("Activate '%s'").printf (document.get_uri_for_display ());
diff --git a/src/tab_label.vala b/src/tab_label.vala
new file mode 100644
index 0000000..39e5703
--- /dev/null
+++ b/src/tab_label.vala
@@ -0,0 +1,67 @@
+/*
+ * This file is part of LaTeXila.
+ *
+ * Copyright © 2017 Sébastien Wilmet
+ *
+ * LaTeXila is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LaTeXila 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LaTeXila.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+public class TabLabel : Tepl.TabLabel
+{
+    public TabLabel (DocumentTab tab)
+    {
+        Object (tab: tab);
+
+        Document doc = tab.get_buffer () as Document;
+        doc.notify["project-id"].connect (update_tooltip);
+    }
+
+    public override string get_tooltip_markup ()
+    {
+        string base_tooltip = base.get_tooltip_markup ();
+
+        Document doc = tab.get_buffer () as Document;
+        File? location = doc.get_file ().get_location ();
+        if (location == null)
+            return base_tooltip;
+
+        Project? project = doc.get_project ();
+        if (project == null)
+            return base_tooltip;
+
+        if (base_tooltip == null)
+            base_tooltip = "";
+
+        if (project.main_file.equal (location))
+            return base_tooltip + Markup.printf_escaped ("\n<b>%s</b>",
+                _("Project main file"));
+
+        return base_tooltip + Markup.printf_escaped ("\n<b>%s</b> %s",
+            _("Project main file:"), get_main_file_relative_path ());
+    }
+
+    private string? get_main_file_relative_path ()
+    {
+        Document doc = tab.get_buffer () as Document;
+        Project? project = doc.get_project ();
+        if (project == null)
+            return "";
+
+        File origin = doc.get_file ().get_location ();
+        File target = project.main_file;
+        File common_dir = project.directory;
+
+        return Utils.get_relative_path (origin, target, common_dir);
+    }
+}