Add navigation client lib for convenience

services/navigation/public/cpp/view.cc

+// Copyright 2016 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 "services/navigation/public/cpp/view.h"
+
+#include "services/navigation/public/cpp/view_delegate.h"
+
+namespace navigation {
+
+////////////////////////////////////////////////////////////////////////////////
+// View, public:
+
+View::View(ViewDelegate* delegate) : delegate_(delegate), binding_(this) {}
+View::~View() {}
+
+void View::Init(mojom::ViewFactoryPtr factory) {
+  factory->CreateView(binding_.CreateInterfacePtrAndBind(), GetProxy(&view_));
+}
+
+void View::NavigateTo(const GURL& url) {
+  view_->NavigateTo(url);
+}
+
+void View::GoBack() {
+  if (can_go_back_)
+    view_->GoBack();
+}
+
+void View::GoForward() {
+  if (can_go_forward_)
+    view_->GoForward();
+}
+
+void View::Reload(bool skip_cache) {
+  view_->Reload(skip_cache);
+}
+
+void View::Stop() {
+  view_->Stop();
+}
+
+void View::ShowInterstitial(const std::string& html) {
+  view_->ShowInterstitial(html);
+}
+
+void View::HideInterstitial() {
+  view_->HideInterstitial();
+}
+
+void View::SetResizerSize(const gfx::Size& size) {
+  view_->SetResizerSize(size);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// View, mojom::ViewClient implementation:
+
+void View::LoadingStateChanged(bool is_loading) {
+  is_loading_ = is_loading;
+  if (delegate_)
+    delegate_->LoadingStateChanged(is_loading);
+}
+
+void View::NavigationStateChanged(const GURL& url,
+                                  const mojo::String& title,
+                                  bool can_go_back,
+                                  bool can_go_forward) {
+  title_ = title;
+  can_go_back_ = can_go_back;
+  can_go_forward_ = can_go_forward;
+  if (delegate_)
+    delegate_->NavigationStateChanged(url, title, can_go_back, can_go_forward);
+}
+
+void View::LoadProgressChanged(double progress) {
+  load_progress_ = progress;
+  if (delegate_)
+    delegate_->LoadProgressChanged(progress);
+}
+
+void View::UpdateHoverURL(const GURL& url) {
+  hover_url_ = url;
+  if (delegate_)
+    delegate_->UpdateHoverURL(url);
+}
+
+void View::ViewCreated(mojom::ViewPtr view,
+                       mojom::ViewClientRequest client,
+                       bool is_popup,
+                       const gfx::Rect& initial_rect,
+                       bool user_gesture) {
+  if (!delegate_)
+    return;
+  delegate_->ViewCreated(std::move(view), std::move(client), is_popup,
+                         initial_rect, user_gesture);
+}
+
+void View::Close() {
+  if (delegate_)
+    delegate_->Close();
+}
+
+}  // namespace navigation