Method GetContentWindowHandle

cpp/iedriver/Browser.cpp:314–350

}

HWND Browser::GetContentWindowHandle() {
  LOG(TRACE) << "Entering Browser::GetContentWindowHandle";

  HWND current_content_window_handle = this->window_handle();
  // If this window is closing, the only reason to care about
  // a valid window handle is to check for alerts whose parent
  // is this window handle, so return the stored window handle.
  if (!this->is_closing()) {
    // If, for some reason, the window handle is no longer valid, set the
    // member variable to NULL so that we can reacquire the valid window
    // handle. Note that this can happen when browsing from one type of
    // content to another, like from HTML to a transformed XML page that
    // renders content. If the member variable is NULL upon entering this
    // method, that is okay, as it typically means only that this object
    // is newly constructed, and has not yet had its handle set.
    bool window_handle_is_valid = ::IsWindow(current_content_window_handle);
    if (!window_handle_is_valid) {
      LOG(INFO) << "Flushing window handle as it is no longer valid";
      this->set_window_handle(NULL);
    }

    if (this->window_handle() == NULL) {
      LOG(INFO) << "Restore window handle from tab";
      // GetBrowserWindowHandle gets the TabWindowClass window in IE 7 and 8,
      // and the top-level window frame in IE 6. The window we need is the
      // InternetExplorer_Server window.
      HWND tab_window_handle = this->GetBrowserWindowHandle();
      if (tab_window_handle == NULL) {
        LOG(WARN) << "No tab window found";
      }
      HWND content_window_handle = this->FindContentWindowHandle(tab_window_handle);
      this->set_window_handle(content_window_handle);
    }
  }

  return this->window_handle();
}

std::string Browser::GetWindowName() {
  LOG(TRACE) << "Entering Browser::GetWindowName";