为什么在Selenium Webdriver中无法拖放? [英] Why drag and drop is not working in Selenium Webdriver?

问题描述

我正在尝试使用Selenium WebDriver将一个元素拖到另一个元素中，但是它不起作用.我尝试了所有可以在Internet上找到的解决方案，但似乎没有一个解决方案适合我.

I am trying to drag an element into another element using Selenium WebDriver but it's not working. I tried all the solutions which I can find on internet but none of the solutions seems to be working for me.

WebElement sourceelement = driver.findElement(By.cssSelector("XXX"));
WebElement destelement = driver.findElement(By.cssSelector("YYY"));

代码1:-

Actions builder = new Actions( _controls.getDriver());
builder.dragAndDrop(sourceelement, destelement);

代码2:-

Actions builder = new Actions(_controls.getDriver());
Action dragAndDrop =
builder.clickAndHold(sourceelement).moveToElement(destelement).release(destelement).build();
Thread.sleep(2000);
dragAndDrop.perform()

代码3:-

Point coordinates1 = sourceelement.getLocation();
Point coordinates2 = destelement.getLocation();  
Robot robot = new Robot();           
robot.mouseMove(coordinates1.getX(), coordinates1.getY());
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseMove(coordinates2.getX(), coordinates2.getY());
robot.mouseRelease(InputEvent.BUTTON1_MASK);
Thread.sleep(2000);

代码4:-

final String java_script =
"var src=arguments[0],tgt=arguments[1];var dataTransfer={dropEffe" +
                "ct:'',effectAllowed:'all',files:[],items:{},types:[],setData:fun" +
                "ction(format,data){this.items[format]=data;this.types.append(for" +
                "mat);},getData:function(format){return this.items[format];},clea" +
                "rData:function(format){}};var emit=function(event,target){var ev" +
                "t=document.createEvent('Event');evt.initEvent(event,true,false);" +
                "evt.dataTransfer=dataTransfer;target.dispatchEvent(evt);};emit('" +
                "dragstart',src);emit('dragenter',tgt);emit('dragover',tgt);emit(" +
                "'drop',tgt);emit('dragend',src);";

        ((JavascriptExecutor)_controls.getDriver()).executeScript(java_script, sourceelement, destelement);
        Thread.sleep(2000);

以上代码均不适合我.以上所有运行均无任何错误，但在应用程序中未发生拖放.还有其他解决方案吗?谢谢.

None of the above code is working for me. All the above runs without any error but drag and drop is not happening in the application. Anyone having any other solution ? Thanks.

推荐答案

您可以为此尝试Java脚本执行器吗?

Can you try Java Script Executor for this

JavascriptExecutor js = (JavascriptExecutor)driver
js.executeScript("function createEvent(typeOfEvent) {\n" + "var event =document.createEvent(\"CustomEvent\");\n"
                    + "event.initCustomEvent(typeOfEvent,true, true, null);\n" + "event.dataTransfer = {\n" + "data: {},\n"
                    + "setData: function (key, value) {\n" + "this.data[key] = value;\n" + "},\n"
                    + "getData: function (key) {\n" + "return this.data[key];\n" + "}\n" + "};\n" + "return event;\n"
                    + "}\n" + "\n" + "function dispatchEvent(element, event,transferData) {\n"
                    + "if (transferData !== undefined) {\n" + "event.dataTransfer = transferData;\n" + "}\n"
                    + "if (element.dispatchEvent) {\n" + "element.dispatchEvent(event);\n"
                    + "} else if (element.fireEvent) {\n" + "element.fireEvent(\"on\" + event.type, event);\n" + "}\n"
                    + "}\n" + "\n" + "function simulateHTML5DragAndDrop(element, destination) {\n"
                    + "var dragStartEvent =createEvent('dragstart');\n" + "dispatchEvent(element, dragStartEvent);\n"
                    + "var dropEvent = createEvent('drop');\n"
                    + "dispatchEvent(destination, dropEvent,dragStartEvent.dataTransfer);\n"
                    + "var dragEndEvent = createEvent('dragend');\n"
                    + "dispatchEvent(element, dragEndEvent,dropEvent.dataTransfer);\n" + "}\n" + "\n"
                    + "var source = arguments[0];\n" + "var destination = arguments[1];\n"
                    + "simulateHTML5DragAndDrop(source,destination);", ElementFrom, ElementTo);

引用: https://www.linkedin.com/pulse/javascriptexecutor-selenium-gaurav-gupta/

它在基于角度的Web应用程序上对我有用.

It works for me on web application which are angular based.

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