Adds a new API for launching Chrome at a given size and location.

This only works with post-1.0 Chrome, as it refers to the new Window names.

R=kuchhal

Review URL: http://codereview.chromium.org/101008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14906 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 51 insertions, 0 deletions

diff --git a/chrome/installer/gcapi/gcapi.cc b/chrome/installer/gcapi/gcapi.cc
index 0ba5d4c..43498b9 100644
--- a/chrome/installer/gcapi/gcapi.cc
+++ b/chrome/installer/gcapi/gcapi.cc
@@ -408,3 +408,42 @@ DLLEXPORT BOOL __stdcall LaunchGoogleChrome() {
   ::CoUninitialize();
   return ret;
 }
+
+#pragma comment(linker, "/EXPORT:LaunchGoogleChromeWithDimensions=_LaunchGoogleChromeWithDimensions@16,PRIVATE")
+DLLEXPORT BOOL __stdcall LaunchGoogleChromeWithDimensions(int x,
+                                                          int y,
+                                                          int width,
+                                                          int height) {
+  if (!LaunchGoogleChrome())
+    return false;
+
+  HWND handle = NULL;
+  int seconds_elapsed = 0;
+
+  // Chrome may have been launched, but the window may not have appeared
+  // yet. Wait for it to appear for 10 seconds, but exit if it takes longer
+  // than that.
+  while (!handle && seconds_elapsed < 10) {
+    handle = FindWindowEx(NULL, handle, L"Chrome_WidgetWin_0", NULL);
+    if (!handle) {
+      Sleep(1000);
+      seconds_elapsed++;
+    }
+  }
+
+  if(!handle)
+    return false;
+
+  // At this point, there are several top-level Chrome windows
+  // but we only want the window that has child windows.
+
+  // This loop iterates through all of the top-level Windows named
+  // Chrome_WidgetWin_0, and looks for the first one with any children.
+  while (handle && !FindWindowEx(handle, NULL, L"Chrome_WidgetWin_0", NULL)) {
+    // Get the next top-level Chrome window.
+    handle = FindWindowEx(NULL, handle, L"Chrome_WidgetWin_0", NULL);
+  }
+
+  return (handle &&
+          SetWindowPos(handle, 0, x, y, width, height, SWP_NOZORDER));
+}
diff --git a/chrome/installer/gcapi/gcapi.h b/chrome/installer/gcapi/gcapi.h
index 4d45d30..8c6f74a 100644
--- a/chrome/installer/gcapi/gcapi.h
+++ b/chrome/installer/gcapi/gcapi.h
@@ -33,9 +33,21 @@ DLLEXPORT BOOL __stdcall GoogleChromeCompatibilityCheck(BOOL set_flag,
 // you called CoInitialize, call CoUninitialize before calling this function).
 DLLEXPORT BOOL __stdcall LaunchGoogleChrome();
 
+// This function launches Google Chrome after a successful install at the
+// given x,y coordinates with size height,length. Make
+// sure COM library is NOT initalized before you call this function (so if
+// you called CoInitialize, call CoUninitialize before calling this function).
+// This call is synchronous, meaning it waits for Chrome to launch and appear
+// to resize it before returning.
+DLLEXPORT BOOL __stdcall LaunchGoogleChromeWithDimensions(int x,
+                                                          int y,
+                                                          int width,
+                                                          int height);
+
 // Funtion pointer type declarations to use with GetProcAddress.
 typedef BOOL (__stdcall * GCCC_CompatibilityCheck)(BOOL, DWORD *);
 typedef BOOL (__stdcall * GCCC_LaunchGC)(HANDLE *);
+typedef BOOL (__stdcall * GCCC_LaunchGCWithDimensions)(int, int, int, int);
 }  // extern "C"
 
 #endif  // # CHROME_INSTALLER_GCAPI_GCAPI_H_