[Chromoting] Add a simple Windows app that registers and starts a host.

remoting/host/setup/win/start_host_window.cc

+// Copyright (c) 2012 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 "remoting/host/setup/win/start_host_window.h"
+
+#include <atlbase.h>
+#include <atlstr.h>
+#include <atlwin.h>
+#include <windows.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/string16.h"
+#include "base/utf_string_conversions.h"
+#include "remoting/host/setup/pin_validator.h"
+
+namespace {
+
+CAtlString LoadString(int id) {
+  CAtlString s;
+  s.LoadString(id);

[alexeypa (please no reviews), 2012/10/12 17:09:35]

How do you handle an error returned by LoadString?

[simonmorris, 2012/10/15 16:51:42]

This code has moved to load_string_from_resource.cc. It now loads a "missing
resource XXX" string, if it can't load the real string.

+  return s;
+}
+
+}  // namespace
+
+namespace remoting {
+
+StartHostWindow::StartHostWindow(
+    net::URLRequestContextGetter* url_request_context_getter)
+    : host_starter_(remoting::HostStarter::Create(url_request_context_getter)),
+      consent_to_collect_data_(true),
+      ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)),
+      weak_ptr_(weak_factory_.GetWeakPtr()) {
+}
+
+void StartHostWindow::OnCancel(UINT code, int id, HWND control) {
+  EndDialog(IDCANCEL);
+}
+
+void StartHostWindow::OnClose() {
+  EndDialog(IDCANCEL);
+}
+
+LRESULT StartHostWindow::OnInitDialog(HWND wparam, LPARAM lparam) {
+  SetWindowText(LoadString(IDS_TITLE));

[alexeypa (please no reviews), 2012/10/12 17:09:35]

Same comments as in the other file:
- GetDlgItem returns CWindow
- Return values should be checked.

[simonmorris, 2012/10/15 16:51:42]

Done.

+  ::SetWindowText(GetDlgItem(IDC_CONSENT), LoadString(IDS_CONSENT));
+  CheckDlgButton(IDC_CONSENT, BST_CHECKED);
+  return TRUE;
+}
+
+void StartHostWindow::OnConsent(UINT code, int id, HWND control) {
+  bool checked = (IsDlgButtonChecked(IDC_CONSENT) == BST_CHECKED);
+  checked = !checked;
+  CheckDlgButton(IDC_CONSENT, checked ? BST_CHECKED : BST_UNCHECKED);
+}
+
+void StartHostWindow::OnOk(UINT code, int id, HWND control) {
+  host_name_ = GetDlgItemString(IDC_HOST_NAME);
+  pin_ = GetDlgItemString(IDC_PIN);
+  std::string confirm_pin = GetDlgItemString(IDC_CONFIRM_PIN);
+  consent_to_collect_data_ = (IsDlgButtonChecked(IDC_CONSENT) == BST_CHECKED);
+  if (pin_ != confirm_pin) {
+    MessageBox(LoadString(IDS_SAME_PIN), LoadString(IDS_TITLE),
+               MB_ICONEXCLAMATION | MB_OK);
+    return;
+  }
+  if (!IsPinValid(pin_)) {
+    MessageBox(LoadString(IDS_INVALID_PIN),
+               LoadString(IDS_TITLE), MB_ICONEXCLAMATION | MB_OK);
+    return;
+  }
+  MessageBox(LoadString(IDS_USE_BROWSER),
+             LoadString(IDS_TITLE), MB_OK);
+  auth_code_getter_.GetAuthCode(
+      base::Bind(&StartHostWindow::OnAuthCode, weak_ptr_));
+}
+
+void StartHostWindow::OnAuthCode(const std::string& auth_code) {
+  host_starter_->StartHost(
+      host_name_, pin_, consent_to_collect_data_, auth_code,
+      base::Bind(&StartHostWindow::OnHostStarted, weak_ptr_));
+}
+
+void StartHostWindow::OnHostStarted(remoting::HostStarter::Result result) {
+  if (result == remoting::HostStarter::START_COMPLETE) {
+    MessageBox(LoadString(IDS_HOST_START_SUCCEEDED),
+               LoadString(IDS_TITLE), MB_OK);
+    EndDialog(IDOK);
+  } else {
+    MessageBox(LoadString(IDS_HOST_START_FAILED),
+               LoadString(IDS_TITLE), MB_ICONEXCLAMATION | MB_OK);
+  }
+}
+
+std::string StartHostWindow::GetDlgItemString(int id) {
+  CWindow control(GetDlgItem(id));
+  int length = control.GetWindowTextLength();
+  scoped_array<char16> str(new char16[length + 1]);
+  int result = control.GetWindowText(str.get(), length + 1);
+  str[std::min(result, length)] = 0;
+  return UTF16ToUTF8(str.get());
+}
+
+}  // namespace remoting