mandoline: Add back/forward support and UI.

mandoline/ui/desktop_ui/toolbar_view.cc

Index: mandoline/ui/desktop_ui/toolbar_view.cc
diff --git a/mandoline/ui/desktop_ui/toolbar_view.cc b/mandoline/ui/desktop_ui/toolbar_view.cc
new file mode 100644
index 0000000000000000000000000000000000000000..764c5cd082849cceb7c9f2f356230fc1c7156e69
--- /dev/null
+++ b/mandoline/ui/desktop_ui/toolbar_view.cc
@@ -0,0 +1,55 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "mandoline/ui/desktop_ui/toolbar_view.h"
+
+#include "base/strings/string16.h"
+#include "base/strings/utf_string_conversions.h"
+#include "mandoline/ui/desktop_ui/browser_window.h"
+#include "ui/views/layout/box_layout.h"
+
+namespace mandoline {
+
+ToolbarView::ToolbarView(BrowserWindow* browser_window)
+    : browser_window_(browser_window),
+      layout_(new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 5)),
+      back_button_(new views::LabelButton(this, base::ASCIIToUTF16("Back"))),
+      forward_button_(
+          new views::LabelButton(this, base::ASCIIToUTF16("Forward"))),
+      omnibox_launcher_(
+          new views::LabelButton(this, base::ASCIIToUTF16("Open Omnibox"))) {
+  SetLayoutManager(layout_);
+
+  AddChildView(back_button_);
+  AddChildView(forward_button_);
+  AddChildView(omnibox_launcher_);
+
+  layout_->SetDefaultFlex(0);
+  layout_->SetFlexForView(omnibox_launcher_, 1);
+}
+
+ToolbarView::~ToolbarView() {}
+
+void ToolbarView::SetOmniboxText(const base::string16& text) {
+  omnibox_launcher_->SetText(text);
+}
+
+void ToolbarView::SetBackForwardEnabled(bool back_enabled,
+                                        bool forward_enabled) {
+  back_button_->SetEnabled(back_enabled);
+  forward_button_->SetEnabled(forward_enabled);
+}
+
+void ToolbarView::ButtonPressed(views::Button* sender, const ui::Event& event) {
+  if (sender == omnibox_launcher_)
+    browser_window_->ShowOmnibox();
+  else if (sender == back_button_)
+    browser_window_->GoBack();
+  else if (sender == forward_button_)
+    browser_window_->GoForward();
+  else
+    NOTREACHED();
+}
+
+}  // namespace mandoline