[shotwell] Fix top-level tooltips

[Jens Georg <jensgeorg src gnome org>]

commit 61164195c49d04cb7cbdb05468af7b355b1dbd60
Author: Jens Georg <mail jensge org>
Date:   Sat Aug 26 14:26:24 2017 +0200

    Fix top-level tooltips

 src/camera/CameraBranch.vala     |    2 +-
 src/events/EventsBranch.vala     |    3 ++-
 src/folders/FoldersBranch.vala   |    2 +-
 src/library/LibraryBranch.vala   |    2 +-
 src/searches/SearchesBranch.vala |    2 +-
 src/sidebar/common.vala          |    4 ++--
 src/tags/TagsBranch.vala         |    2 +-
 7 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/src/camera/CameraBranch.vala b/src/camera/CameraBranch.vala
index 9bc551a..052f093 100644
--- a/src/camera/CameraBranch.vala
+++ b/src/camera/CameraBranch.vala
@@ -82,7 +82,7 @@ public class Camera.Branch : Sidebar.Branch {
 
 public class Camera.Header : Sidebar.Header {
     public Header() {
-        base (_("Cameras"));
+        base (_("Cameras"), _("List of all discovered camera devices"));
     }
 }
 
diff --git a/src/events/EventsBranch.vala b/src/events/EventsBranch.vala
index 15144f2..8980d60 100644
--- a/src/events/EventsBranch.vala
+++ b/src/events/EventsBranch.vala
@@ -22,7 +22,8 @@ public class Events.Branch : Sidebar.Branch {
     private Events.MasterDirectoryEntry all_events_entry = new Events.MasterDirectoryEntry();
     
     public Branch() {
-        base (new Sidebar.Header(_("Events")), Sidebar.Branch.Options.STARTUP_EXPAND_TO_FIRST_CHILD,
+        base (new Sidebar.Header(_("Events"), _("Browse through your events")),
+            Sidebar.Branch.Options.STARTUP_EXPAND_TO_FIRST_CHILD,
             event_year_comparator);
         
         graft(get_root(), all_events_entry);
diff --git a/src/folders/FoldersBranch.vala b/src/folders/FoldersBranch.vala
index 272456c..8326a8c 100644
--- a/src/folders/FoldersBranch.vala
+++ b/src/folders/FoldersBranch.vala
@@ -141,7 +141,7 @@ public class Folders.Branch : Sidebar.Branch {
 
 private class Folders.Root : Sidebar.Header {
     public Root() {
-        base (_("Folders"));
+        base (_("Folders"), _("Browse the library's folder structure"));
     }
 }
 
diff --git a/src/library/LibraryBranch.vala b/src/library/LibraryBranch.vala
index bab17fc..f9113f5 100644
--- a/src/library/LibraryBranch.vala
+++ b/src/library/LibraryBranch.vala
@@ -27,7 +27,7 @@ public class Library.Branch : Sidebar.Branch {
     }
     
     public Branch() {
-        base(new Sidebar.Header(_("Library")),
+        base(new Sidebar.Header(_("Library"), _("Organize and browse your photos")),
             Sidebar.Branch.Options.STARTUP_OPEN_GROUPING, comparator);
 
         photos_entry = new Library.PhotosEntry();
diff --git a/src/searches/SearchesBranch.vala b/src/searches/SearchesBranch.vala
index 3b54acf..caf8ac6 100644
--- a/src/searches/SearchesBranch.vala
+++ b/src/searches/SearchesBranch.vala
@@ -65,7 +65,7 @@ public class Searches.Header : Sidebar.Header, Sidebar.Contextable {
     private Gtk.Menu? context_menu = null;
     
     public Header() {
-        base (_("Saved Searches"));
+        base (_("Saved Searches"), _("Organize your saved searches"));
         setup_context_menu();
     }
 
diff --git a/src/sidebar/common.vala b/src/sidebar/common.vala
index c5a4764..0467ce3 100644
--- a/src/sidebar/common.vala
+++ b/src/sidebar/common.vala
@@ -120,8 +120,8 @@ public class Sidebar.RootOnlyBranch : Sidebar.Branch {
 public class Sidebar.Header : Sidebar.Grouping, Sidebar.EmphasizableEntry {
     private bool emphasized;
     
-    public Header(string name, bool emphasized = true) {
-        base(name, null);
+    public Header(string name, string? tooltip = null, bool emphasized = true) {
+        base(name, null, tooltip);
         this.emphasized = emphasized;
     }
     
diff --git a/src/tags/TagsBranch.vala b/src/tags/TagsBranch.vala
index 52dabdb..5094c11 100644
--- a/src/tags/TagsBranch.vala
+++ b/src/tags/TagsBranch.vala
@@ -128,7 +128,7 @@ public class Tags.Header : Sidebar.Header, Sidebar.InternalDropTargetEntry,
     private Gtk.Menu? context_menu = null;
     
     public Header() {
-        base (_("Tags"));
+        base (_("Tags"), _("Organize and browse your photo's tags"));
         setup_context_menu();
     }