/// <summary>
/// 获取html内容
/// </summary>
/// <param name="chromiumWebBrowser">CefSharp的webbrowser</param>
/// <returns></returns>
public static async Task <string> GetHtmlSource(ExtChromiumBrowser chromiumWebBrowser)
{
string htmlStr = string.Empty;
await chromiumWebBrowser.GetSourceAsync().ContinueWith(taskHtml =>
{
htmlStr = taskHtml.Result;
});
return(htmlStr);
}
/// <summary>
/// 给Input赋值
/// </summary>
/// <param name="chromiumWebBrowser">CefSharp的webbrowser</param>
/// <param name="name">根据控件的名称</param>
/// <param name="innerHtml">内部html包含***</param>
/// <param name="outHtml">外部html包含***</param>
public static string SetValueByName(ExtChromiumBrowser chromiumWebBrowser, string name, string value, SearchType searchType = SearchType.ControlName, string innerHtml = "", string outHtml = "")
{
string js = string.Empty;
string forStr = string.Empty;
if (name.Length > 0)
{
if (innerHtml.Length > 0)
{
forStr = "if(eleAug[i].innerText.indexOf('" + innerHtml + "') != -1) ";
}
if (outHtml.Length > 0)
{
forStr = "if(eleAug[i].outerText.indexOf('" + outHtml + "') != -1) ";
}
string searchjs = string.Empty;
switch (searchType)
{
case SearchType.ControlName: { searchjs = " var eleAug= document.getElementsByName('" + name + @"');"; } break;
case SearchType.ClassName: { searchjs = " var eleAug= document.getElementsByClassName('" + name + @"');"; } break;
case SearchType.TagName: { searchjs = " var eleAug= document.getElementsByTagName('" + name + @"');"; } break;
}
js = @"(
function()
{
" + searchjs + @"
if(eleAug!=null)
{
for(var i=0;i< eleAug.length;i++)
{
" + forStr + @"
{ ele.value='" + value + @"';}
}
}
}
)()";
}
else
{
return("名称不能为空");
}
ExecuteJs(chromiumWebBrowser, js);
return("点击成功");
}
/// <summary>
/// 给input赋值
/// </summary>
/// <param name="chromiumWebBrowser">CefSharp的webbrowser</param>
/// <param name="id">根据id</param>
public static string SetValueById(ExtChromiumBrowser chromiumWebBrowser, string id, string value)
{
if (id.Length > 0)
{
string js = @"(
function()
{
var ele= document.getElementById('" + id + @"');
if(ele!=null)
{
ele.value='" + value + @"';
}
}
)()";
ExecuteJs(chromiumWebBrowser, js);
return("赋值成功");
}
else
{
return("id不能为空");
}
}
/// <summary>
/// 点击按钮
/// </summary>
/// <param name="chromiumWebBrowser">CefSharp的webbrowser</param>
/// <param name="id">根据id</param>
public static string ClickButtonById(ExtChromiumBrowser chromiumWebBrowser, string id)
{
if (id.Length > 0)
{
string js = @"(
function()
{
var ele= document.getElementById('" + id + @"');
if(ele!=null)
{
ele.click();
}
}
)()";
ExecuteJs(chromiumWebBrowser, js);
return("点击成功");
}
else
{
return("id不能为空");
}
}
public BrowserCtrl()
{
InitializeComponent();
if (DesignerProperties.GetIsInDesignMode(this))
{
return;
}
this.Loaded += BrowserCtrl_Loaded;
lock (_lockObject)
{
if (!_isCefInited)
{
_isCefInited = true;
InitCef(); //初始化CefSharp
}
}
_browser = new ExtChromiumBrowser();
BindBrowser(_browser);
grid.Children.Add(_browser);
}
private async Task GetSTSQData(ExtChromiumBrowser chromiumWebBrowser)
{
int topic_index = 0;
while (!cts.Token.IsCancellationRequested)
{
topic_index++;
var topic_type = string.Empty;
var topic = string.Empty;
try
{
await Task.Delay(300);
string html = await CefWebBrowserControl.GetHtmlSource(chromiumWebBrowser);
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html); //html字符串
//获取标签里的值select-left pull-left options-w
var enable = doc.DocumentNode.SelectSingleNode("//div[@class='btn_ct tb']/span[2]");
if (enable.Attributes["disabled"] != null && enable.Attributes["disabled"].Value.Equals("disabled"))
{
break;
}
topic_type = doc.DocumentNode.SelectSingleNode("//div[@class='test_style']").InnerText.Split(new char[2] {
'【', '】'
})[1];
//topic_index = doc.DocumentNode.SelectSingleNode("//span[@class='topic-type']/following-sibling::span").InnerText.Replace("\\n", "").Split('/')[1];
topic = doc.DocumentNode.SelectSingleNode("//div[@class='swiper-slide swiper-slide-active']/div[@class='test_title']/span").InnerHtml;
if ("单选题 多选题 判断题 不定项选择题 排序题".Contains(topic_type))
{
var answers = doc.DocumentNode.SelectNodes("//div[@class='test_bot']/dl");
CefWebBrowserControl.ClickButtonByJsPath(chromiumWebBrowser, @"document.querySelector('div.test_bot').children[0].children[0].click()");
await Task.Delay(200);
listBox1.Items.Add($"[{ topic_type}]");
listBox1.Items.Add($"{topic_index}、{topic}");
foreach (var item in answers)
{
string value1 = item.SelectSingleNode("./span").InnerText;
string value2 = item.InnerText;
listBox1.Items.Add($"{value1}{value2}");
}
}
var answerRight = doc.DocumentNode.SelectSingleNode("//span[@class='rightAnswer']").InnerText;
var answerAnalysis = doc.DocumentNode.SelectSingleNode("//div[@class='answerText']/div[4]").InnerHtml;
listBox1.Items.Add("答案:" + answerRight);
listBox1.Items.Add(answerAnalysis);
CefWebBrowserControl.ClickButtonByJsPath(chromiumWebBrowser, @"document.querySelector('div.test_bot').lastElementChild.firstElementChild.click()");
}
catch (Exception ex)
{
listBox1.Items.Add($"错误行:{topic_type},{topic_index},{topic}");
cts?.Cancel();
break;
}
}
}
/// <summary>
/// 执行JS
/// </summary>
/// <param name="chromiumWebBrowser">wpf版本的ExtChromiumBrowser</param>
/// <param name="js"></param>
public static void ExecuteJs(ExtChromiumBrowser chromiumWebBrowser, string js)
{
var frame = chromiumWebBrowser.GetMainFrame();
frame.EvaluateScriptAsync(js);
}
//document.querySelector("#body > div > div > div.form-main > form > div > div:nth-child(1) > div > div > div > input").value="18126015434"
//document.querySelector("#body > div > div > div.form-main > form > div > div:nth-child(2) > div > div > div > input").value="yl123456"
//document.querySelector("#body > div > div > div.form-main > form > div > div.mb20 > button")
public static void ClickButtonByJsPath(ExtChromiumBrowser chromiumWebBrowser, string JsPath)
{
ExecuteJs(chromiumWebBrowser, JsPath);
}
public DownloadHandler(ExtChromiumBrowser browser)
{
_browser = browser;
}
public RequestHandler(ExtChromiumBrowser browser)
{
_browser = browser;
}
private void BindBrowser(ExtChromiumBrowser browser)
{
_jsObject = new JSObject();
CefSharpSettings.LegacyJavascriptBindingEnabled = true;
CefSharpSettings.WcfEnabled = true;
browser.JavascriptObjectRepository.Register("jsObj", _jsObject, isAsync: false, options: BindingOptions.DefaultBinder);
browser.IsBrowserInitializedChanged += (ss, ee) =>
{
LoadUrl();
};
browser.FrameLoadStart += (ss, ee) =>
{
this.Dispatcher.BeginInvoke(new Action(() =>
{
(ss as ExtChromiumBrowser).Focus();
}));
};
browser.FrameLoadEnd += (ss, ee) =>
{
this.Dispatcher.BeginInvoke(new Action(() =>
{
loadingWait.Visibility = Visibility.Collapsed;
}));
if (FrameLoadEnd != null)
{
FrameLoadEnd(null, null);
}
};
browser.KeyDown += (ss, ee) =>
{
if (ee.Key == Key.F5)
{
try
{
browser.Reload();
}
catch (Exception ex)
{
LogUtil.Error(ex, "ExtChromiumBrowser Reload error");
}
}
};
browser.PreviewTextInput += (o, e) =>
{
foreach (var character in e.Text)
{
// 把每个字符向浏览器组件发送一遍
browser.GetBrowser().GetHost().SendKeyEvent((int)WM.CHAR, (int)character, 0);
}
// 不让cef自己处理
e.Handled = true;
};
browser.LoadError += (s, e) =>
{
this.Dispatcher.BeginInvoke(new Action(() =>
{
loadingWait.Visibility = Visibility.Collapsed;
}));
};
}
