在Plus.Google.com上触发按键

我正在创建一个扩展，我必须在用户在Google Plus中键入消息(状态)的可满足的div上模拟空格键。

如果你打开plus.google.com，你点击你必须键入消息的div，你会意识到，当你在消息内键入一个链接，你按下{空格键}，你会注意到谷歌检索的标题，图像和该链接的描述。我花了3天时间模拟空格键。我已经可以模拟鼠标在表单元素上移动，我可以模拟发送按钮中的click()，但是我仍然不能模拟空格键的按下。

var e = new KeyboardEvent("keydown", {bubbles : true, cancelable : true, key : " ", char : " ", shiftKey : false, keyCode: 32, which: 32, view: window});
//I need to delete the e.keyCode and e.which cause Chrome sets it as a readonly but for some reason if you delete it and assign a new value Chrome accepts (I am very sure this is a serious bug that I discovered in Chrome and that I already reported yesterday in theis bug tracker)
delete e.keyCode;
Object.defineProperty(e, "keyCode", {"value" : 32});
delete e.which;
Object.defineProperty(e, "which", {"value" : 32});
$(".Cla").find(".be.c-B").children().eq(1).get(0).dispatchEvent(e);

谢谢你。

我不知道它是否有助于你进行测试，但我建议你这样做:

opened_window = window.open("http://plus.google.com");

之后单击div展开它，然后运行下面的代码:

$(".Cla").find(".be.c-B").children().eq(1).html("The site stackoverflow.com is amazing");
var e = new KeyboardEvent("keydown", {bubbles : true, cancelable : true, key : " ", char : " ", shiftKey : false, keyCode: 32, which: 32, view: window});
delete e.keyCode;
Object.defineProperty(e, "keyCode", {"value" : 32});
delete e.which;
Object.defineProperty(e, "which", {"value" : 32});
$(".Cla").find(".be.c-B").children().eq(1).get(0).dispatchEvent(e);

由于某些原因，这没有触发链接信息的检索。但是如果你点击div然后按空格键你会看到Google检索到链接的信息