Get mojo_shell building inside chromium checkout.

mojo/services/kiosk_wm/navigator_host_impl.cc

+// Copyright 2014 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 "mojo/services/kiosk_wm/navigator_host_impl.h"
+
+#include "mojo/services/kiosk_wm/kiosk_wm.h"
+
+namespace kiosk_wm {
+
+NavigatorHostImpl::NavigatorHostImpl(KioskWM* window_manager)
+    : current_index_(-1), kiosk_wm_(window_manager) {
+}
+
+NavigatorHostImpl::~NavigatorHostImpl() {
+}
+
+void NavigatorHostImpl::Bind(
+    mojo::InterfaceRequest<mojo::NavigatorHost> request) {
+  bindings_.AddBinding(this, request.Pass());
+}
+
+void NavigatorHostImpl::DidNavigateLocally(const mojo::String& url) {
+  RecordNavigation(url);
+  // TODO(abarth): Do something interesting.
+}
+
+void NavigatorHostImpl::RequestNavigate(mojo::Target target,
+                                        mojo::URLRequestPtr request) {
+  // kiosk_wm sets up default services including navigation.
+  kiosk_wm_->ReplaceContentWithURL(request->url);
+}
+
+void NavigatorHostImpl::RequestNavigateHistory(int32_t delta) {
+  if (history_.empty())
+    return;
+  current_index_ =
+      std::max(0, std::min(current_index_ + delta,
+                           static_cast<int32_t>(history_.size()) - 1));
+  kiosk_wm_->ReplaceContentWithURL(history_[current_index_]);
+}
+
+void NavigatorHostImpl::RecordNavigation(const std::string& url) {
+  if (current_index_ >= 0 && history_[current_index_] == url) {
+    // This is a navigation to the current entry, ignore.
+    return;
+  }
+
+  history_.erase(history_.begin() + (current_index_ + 1), history_.end());
+  history_.push_back(url);
+  ++current_index_;
+}
+
+}  // namespace kiosk_wm