Implement command line flags for peerconnection client example on Windows

Adding the flags and functionality for 'autoconnect', 'autocall', 'server',
'port', and 'help' like in the linux example.

BUG=3459
R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/13609004

Patch from Vicken Simonian <vsimon@gmail.com>.

git-svn-id: http://webrtc.googlecode.com/svn/trunk/talk@6573 4adac7df-926f-26a2-2b94-8c16560cd09d

3 files changed, 51 insertions, 6 deletions

diff --git a/examples/peerconnection/client/main.cc b/examples/peerconnection/client/main.cc
index e68c78e..765dfaa 100644
--- a/examples/peerconnection/client/main.cc
+++ b/examples/peerconnection/client/main.cc
@@ -26,6 +26,7 @@
  */
 
 #include "talk/examples/peerconnection/client/conductor.h"
+#include "talk/examples/peerconnection/client/flagdefs.h"
 #include "talk/examples/peerconnection/client/main_wnd.h"
 #include "talk/examples/peerconnection/client/peer_connection_client.h"
 #include "talk/base/ssladapter.h"
@@ -39,7 +40,24 @@ int PASCAL wWinMain(HINSTANCE instance, HINSTANCE prev_instance,
   talk_base::Win32Thread w32_thread;
   talk_base::ThreadManager::Instance()->SetCurrentThread(&w32_thread);
 
-  MainWnd wnd;
+  WindowsCommandLineArguments win_args;
+  int argc = win_args.argc();
+  char **argv = win_args.argv();
+
+  FlagList::SetFlagsFromCommandLine(&argc, argv, true);
+  if (FLAG_help) {
+    FlagList::Print(NULL, false);
+    return 0;
+  }
+
+  // Abort if the user specifies a port that is outside the allowed
+  // range [1, 65535].
+  if ((FLAG_port < 1) || (FLAG_port > 65535)) {
+    printf("Error: %i is not a valid port.\n", FLAG_port);
+    return -1;
+  }
+
+  MainWnd wnd(FLAG_server, FLAG_port, FLAG_autoconnect, FLAG_autocall);
   if (!wnd.Create()) {
     ASSERT(false);
     return -1;
diff --git a/examples/peerconnection/client/main_wnd.cc b/examples/peerconnection/client/main_wnd.cc
index 6211e99..cef1da7 100644
--- a/examples/peerconnection/client/main_wnd.cc
+++ b/examples/peerconnection/client/main_wnd.cc
@@ -36,6 +36,8 @@
 ATOM MainWnd::wnd_class_ = 0;
 const wchar_t MainWnd::kClassName[] = L"WebRTC_MainWnd";
 
+using talk_base::sprintfn;
+
 namespace {
 
 const char kConnecting[] = "Connecting... ";
@@ -79,10 +81,15 @@ void AddListBoxItem(HWND listbox, const std::string& str, LPARAM item_data) {
 
 }  // namespace
 
-MainWnd::MainWnd()
+MainWnd::MainWnd(const char* server, int port, bool auto_connect,
+                 bool auto_call)
   : ui_(CONNECT_TO_SERVER), wnd_(NULL), edit1_(NULL), edit2_(NULL),
     label1_(NULL), label2_(NULL), button_(NULL), listbox_(NULL),
-    destroyed_(false), callback_(NULL), nested_msg_(NULL) {
+    destroyed_(false), callback_(NULL), nested_msg_(NULL),
+    server_(server), auto_connect_(auto_connect), auto_call_(auto_call) {
+  char buffer[10] = {0};
+  sprintfn(buffer, sizeof(buffer), "%i", port);
+  port_ = buffer;
 }
 
 MainWnd::~MainWnd() {
@@ -158,6 +165,9 @@ void MainWnd::SwitchToConnectUI() {
   ui_ = CONNECT_TO_SERVER;
   LayoutConnectUI(true);
   ::SetFocus(edit1_);
+
+  if (auto_connect_)
+    ::PostMessage(button_, BM_CLICK, 0, 0);
 }
 
 void MainWnd::SwitchToPeerList(const Peers& peers) {
@@ -173,6 +183,19 @@ void MainWnd::SwitchToPeerList(const Peers& peers) {
   ui_ = LIST_PEERS;
   LayoutPeerListUI(true);
   ::SetFocus(listbox_);
+
+  if (auto_call_ && peers.begin() != peers.end()) {
+    // Get the number of items in the list
+    LRESULT count = ::SendMessage(listbox_, LB_GETCOUNT, 0, 0);
+    if (count != LB_ERR) {
+      // Select the last item in the list
+      LRESULT selection = ::SendMessage(listbox_, LB_SETCURSEL , count - 1, 0);
+      if (selection != LB_ERR)
+        ::PostMessage(wnd_, WM_COMMAND, MAKEWPARAM(GetDlgCtrlID(listbox_),
+                                                   LBN_DBLCLK),
+                      reinterpret_cast<LPARAM>(listbox_));
+    }
+  }
 }
 
 void MainWnd::SwitchToStreamingUI() {
@@ -465,8 +488,8 @@ void MainWnd::CreateChildWindows() {
   CreateChildWindow(&listbox_, LISTBOX_ID, L"ListBox",
                     LBS_HASSTRINGS | LBS_NOTIFY, WS_EX_CLIENTEDGE);
 
-  ::SetWindowTextA(edit1_, GetDefaultServerName().c_str());
-  ::SetWindowTextA(edit2_, "8888");
+  ::SetWindowTextA(edit1_, server_.c_str());
+  ::SetWindowTextA(edit2_, port_.c_str());
 }
 
 void MainWnd::LayoutConnectUI(bool show) {
diff --git a/examples/peerconnection/client/main_wnd.h b/examples/peerconnection/client/main_wnd.h
index 6d2bf3e..77da9f6 100644
--- a/examples/peerconnection/client/main_wnd.h
+++ b/examples/peerconnection/client/main_wnd.h
@@ -93,7 +93,7 @@ class MainWnd : public MainWindow {
     UI_THREAD_CALLBACK = WM_APP + 1,
   };
 
-  MainWnd();
+  MainWnd(const char* server, int port, bool auto_connect, bool auto_call);
   ~MainWnd();
 
   bool Create();
@@ -207,6 +207,10 @@ class MainWnd : public MainWindow {
   void* nested_msg_;
   MainWndCallback* callback_;
   static ATOM wnd_class_;
+  std::string server_;
+  std::string port_;
+  bool auto_connect_;
+  bool auto_call_;
 };
 #endif  // WIN32