javascript 量角器切换到上一个选项卡
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protractor switch to previous tab
提问by Ana
After opening a new tab (second) I'm trying to switch to the first tab.
打开一个新标签（第二个）后，我试图切换到第一个标签。
common.clickOpenNewSession(); //it opens the new tab
browser.getAllWindowHandles().then(function (handles) {
var secondWindowHandle = handles[1];
var firstWindowHandle = handles[0];
browser.switchTo().window(secondWindowHandle).then(function () { //the focus moves on new tab
browser.sleep(3000);
expect(browser.driver.getCurrentUrl()).toContain("url");
//do some actions
});
//below it doesn't work. I try to go back on previous tab without closing the second tab
browser.actions().sendKeys(protractor.Key.CONTROL).sendKeys(protractor.Key.TAB).perform();
browser.sleep(4000);
browser.driver.switchTo().window(firstWindowHandle);
browser.setLocation('http://google.com');
});
采纳答案by Jmr
The problem is that you're trying to go to the previous tab by using ctrl + tab, instead of using the window handles to switch back. This is not supported in WebDriver, because using ctrl + tab is a system operation, and can't be emulated on your browser for all OS/browsers. Just use browser.switchTo()again.
问题是您试图通过使用 ctrl + tab 转到上一个选项卡，而不是使用窗口句柄切换回来。这在 WebDriver 中不受支持，因为使用 ctrl + tab 是系统操作，不能在您的浏览器上为所有操作系统/浏览器模拟。再用browser.switchTo()就好了。
回答by Tim Visser
@Aaron This code get all the browser handles available and resolves the promise. Then opens the tab created by a <a href='newlink' target='_blank'>Link</a>:
@Aaron 此代码获取所有可用的浏览器句柄并解决承诺。然后打开由 a 创建的选项卡<a href='newlink' target='_blank'>Link</a>：
POFile.buttonWithABlankTarget.click().then(function() {
browser.getAllWindowHandles().then(function(handles) {
var newTabHandle = handles[1];
browser.switchTo().window(newTabHandle).then(function () {
// Expect the newly opened tab URL to equal the href of the invitation
expect(browser.driver.getCurrentUrl()).toContain("http://...");
});
});
});
In the same fashion, you could switch between tabs:
以同样的方式，您可以在选项卡之间切换：
it("should open the first tab", function() {
browser.getAllWindowHandles().then(function (handles) {
browser.switchTo().window(handles[0]);
});
});
And, of course, close a tab:
当然，关闭一个选项卡：
it("should close the second tab and return to the first tab", function() {
browser.getAllWindowHandles().then(function (handles) {
// We currently are on the second tab...
browser.driver.close();
browser.switchTo().window(handles[0]);
});
});
Hope this helps!
希望这可以帮助！
