Linux: Make the findbar hang over the render view.

chrome/browser/gtk/tab_contents_container_gtk.cc

Index: chrome/browser/gtk/tab_contents_container_gtk.cc
===================================================================
--- chrome/browser/gtk/tab_contents_container_gtk.cc	(revision 14624)
+++ chrome/browser/gtk/tab_contents_container_gtk.cc	(working copy)
@@ -12,8 +12,14 @@
 
 TabContentsContainerGtk::TabContentsContainerGtk()
     : tab_contents_(NULL),
-      vbox_(gtk_vbox_new(FALSE, 0)) {
-  gtk_widget_show(vbox_);
+      vbox_(gtk_vbox_new(FALSE, 0)),
+      fixed_(gtk_fixed_new()),
+      findbar_(NULL) {
+  gtk_widget_set_size_request(fixed_, -1, 0);
+  gtk_box_pack_start(GTK_BOX(vbox_), fixed_, FALSE, FALSE, 0);
+  gtk_widget_show_all(vbox_);
+  g_signal_connect(fixed_, "size-allocate",
+                   G_CALLBACK(OnSizeAllocate), this);
 }
 
 TabContentsContainerGtk::~TabContentsContainerGtk() {
@@ -26,7 +32,9 @@
 }
 
 void TabContentsContainerGtk::AddFindBar(GtkWidget* findbar) {
-  gtk_box_pack_start(GTK_BOX(vbox_), findbar, FALSE, FALSE, 0);
+  findbar_ = findbar;
+  // We will reposition it later (when we get a size-allocate event).
+  gtk_fixed_put(GTK_FIXED(fixed_), findbar, 0, 0);
 }
 
 void TabContentsContainerGtk::SetTabContents(TabContents* tab_contents) {
@@ -114,3 +122,20 @@
   DCHECK(contents == tab_contents_);
   SetTabContents(NULL);
 }
+
+void TabContentsContainerGtk::OnSizeAllocate(GtkWidget* fixed,
+    GtkAllocation* allocation, TabContentsContainerGtk* contents_container) {
+  GtkWidget* findbar = contents_container->findbar_;
+  DCHECK(findbar);
+  if (!GTK_WIDGET_VISIBLE(findbar))
+    return;
+
+  // TODO(port): Logic for the positioning of the find bar should be factored
+  // out of here and browser/views/* and into FindBarController.
+  int xposition = allocation->width - findbar->allocation.width - 50;
+  if (xposition == findbar->allocation.x) {
+    return;
+  } else {
+    gtk_fixed_move(GTK_FIXED(fixed), findbar, xposition, 0);
+  }
+}