从 Opera 浏览器获取 URL

Question

我正在尝试从 Opera 浏览器获取 URL，我认为它与 Chrome 相同，但我错了，因为它不能以这种方式工作。

到目前为止，我所做的是：

    public static string GetURL(IntPtr intPtr, string programName, out string url)
    {
        string temp = null;
            if (programName.Equals("opera"))
        {
        //    // there are always multiple opera processes, so we have to loop through all of them to find the
        //    // process with a Window Handle and an automation element of name "Address and search bar"
          /*  string x = "";
            DdeClient dde = new DdeClient("opera", "WWW_GetWindowInfo");
            try
            {
                //temp := RequestData('0xFFFFFFFF');
                dde.Connect();
                string url1 = dde.Request("URL", int.MaxValue);
                string[] text = url1.Split(new string[] { "\",\"" }, StringSplitOptions.RemoveEmptyEntries);
                dde.Disconnect();
            }
            catch (Exception)
            {
                x = "failed";
             }
*/



            Process[] procsOpera = Process.GetProcessesByName("opera");
            foreach (Process opera in procsOpera)
            {
                // the chrome process must have a window
                if (opera.MainWindowHandle == IntPtr.Zero)
               {
                      continue;
                }

                // find the automation element
                AutomationElement elm = AutomationElement.FromHandle(opera.MainWindowHandle);
                AutomationElement elmUrlBar = elm.FindFirst(TreeScope.Descendants,
                  new PropertyCondition(AutomationElement.NameProperty, "Address and search bar"));

                // if it can be found, get the value from the URL bar
                if (elmUrlBar != null)
                {
                    AutomationPattern[] patterns = elmUrlBar.GetSupportedPatterns();
                    if (patterns.Length > 0)
                    {
                        ValuePattern val = (ValuePattern)elmUrlBar.GetCurrentPattern(patterns[0]);
                        temp = val.Current.Value.ToString();
                        url = val.Current.Value.ToString();
                    }
                    else
                    {
                        temp = "";
                        url = "";
                    }
                }
                else
                {
                    temp = "";
                    url = "";
                }
            }
        }
        url = temp;
        return temp;
    }

我已经尝试使用 NDDE 客户端和自动化元素，但都失败了 :( 我认为在自动化元素中问题出在这一行

AutomationElement elmUrlBar = elm.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.NameProperty, "Address and search bar"));

也许对于歌剧来说不是"Address and search bar" 可以请1 帮我解决这个问题吗？

注意：有几个问题在哪里标记了 chrome 和 opera，但在 SO 上没有 Opera 工作答案。

Answer 1

您可以使用Inspect，它提供与 UISpy 相同的功能，以从 Opera UI 获取 AutomationId。我认为它不起作用的原因是因为它在 Opera 中的命名不同。

Answer 2

您可以下载NDde dll。添加引用后，只需将此代码复制到您想要获取 url 的位置即可。

NDde DLL 下载：http://ndde.codeplex.com/

DdeClient dde = new DdeClient("opera", "WWW_GetWindowInfo");
dde.Connect();
string url = dde.Request("URL", int.MaxValue);
string[] text = url.Split(new string[] { "\",\"" }, StringSplitOptions.RemoveEmptyEntries);
dde.Disconnect();

如果您想获取 firefox 数据，只需将 opera 更改为 firefox

DdeClient dde = new DdeClient("firefox", "WWW_GetWindowInfo");
dde.Connect();
string url = dde.Request("URL", int.MaxValue);
string[] text = url.Split(new string[] { "\",\"" }, StringSplitOptions.RemoveEmptyEntries);
dde.Disconnect();

在函数中

private string GetBrowserURL(string browser) {
    try {
        DdeClient dde = new DdeClient(browser, "WWW_GetWindowInfo");
        dde.Connect();
        string url = dde.Request("URL", int.MaxValue);
        string[] text = url.Split(new string[] { "\",\"" }, StringSplitOptions.RemoveEmptyEntries);
        dde.Disconnect();
        return text[0].Substring(1);
    } catch {
        return null;
    }
}

Answer 3

1. 获取Opera的进程ID：

   公共静态无效GetOperaURL（） { Process[] OProcesses = Process.GetProcessesByName("opera"); 字符串 url = null; foreach（OProcesses 中的处理过程） { if (proc.MainWindowHandle != IntPtr.Zero) { url = getOperaUrlFromProcess(proc); 休息; } } }

2. 使用自动化元素来确定 URL

   private static string getOperaUrlFromProcess(Process proc) { // find the automation element AutomationElement elm = AutomationElement.FromHandle(proc.MainWindowHandle); // manually walk through the tree, searching using TreeScope.Descendants is too slow (even if it's more reliable) AutomationElement elmUrlBar = null; try { var elm1 = elm.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Browser container")); if (elm1 == null) { return null; } elmUrlBar = elm.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.NameProperty, "Address field")); } catch { // Chrome has probably changed something, and above walking needs to be modified. :( // put an assertion here or something to make sure you don't miss it return null; } // make sure it's valid if (elmUrlBar == null) { // it's not.. return null; } // there might not be a valid pattern to use, so we have to make sure we have one AutomationPattern[] patterns = elmUrlBar.GetSupportedPatterns(); if (patterns.Length == 1) { string ret = ""; try { ret = ((ValuePattern)elmUrlBar.GetCurrentPattern(patterns[0])).Current.Value; } catch { } if (ret != "") { return ret; } return null; } return null; }

Answer 4

更改了您的功能并使其尽可能简单。适用于当前的 Opera 版本 47.0

public static string GetOperaURL()
    {
        string url = "";

        Process[] procsOpera = Process.GetProcessesByName("opera");
        foreach (Process opera in procsOpera)
        {
            // the chrome process must have a window
            if (opera.MainWindowHandle == IntPtr.Zero)
            {
                continue;
            }

            // find the automation element
            AutomationElement elm = AutomationElement.FromHandle(opera.MainWindowHandle);
            AutomationElement elmUrlBar = elm.FindFirst(TreeScope.Descendants,
                new PropertyCondition(AutomationElement.NameProperty, "Address field"));

            // if it can be found, get the value from the URL bar
            if (elmUrlBar == null) continue;

            AutomationPattern pattern = elmUrlBar.GetSupportedPatterns().FirstOrDefault(wr=>wr.ProgrammaticName == "ValuePatternIdentifiers.Pattern");

            if (pattern == null) continue;

            ValuePattern val = (ValuePattern)elmUrlBar.GetCurrentPattern(pattern);
            url = val.Current.Value;
            break;
        }

        return url;
    }