Unable to perform click action in selenium python

Question

I'm writing a test script using selenium in python. I have a web-page containing a tree-view object like this:

enter image description here

I want to traverse over the menu to go to the desired directory. Respective HTML code for plus/minus indications is this:

<a onclick="changeTree('tree', 'close.gif', 'open.gif');">
    <img id="someid" src="open.gif" />
</a>

The src attribute of the image can be either open.gif or close.gif.

I can detect weather there is a plus or minus by simply checking the src attribute of the img tag. I can also easily access to the parent tag, a, by using .find_element_by_xpath("..").

The problem is that I can't perform the click action not on the img nor the a tag.

I'v tried webdriver.Actions(driver).move_to_element(el).click().perform(); but it did not work.

I think I should mention that there is no problem in accessing the elements, since I can print all their attributes; I just can't perform actions on them. Any help?

EDIT 1:

Here's the js code for collapsing and expanding the tree:

function changeTree(tree, image1, image2) {
    if (!isTreeviewLocked(tree)) {
        var image = document.getElementById("treeViewImage" + tree);
        if (image.src.indexOf(image1)!=-1) {
            image.src = image2;
        } else {
            image.src = image1;
        }

        if (document.getElementById("treeView" + tree).innerHTML == "") {
            return true;
        } else {
            changeMenu("treeView" + tree);
            return false;
        }
    } else {
        return false;
    }
}

EDIT 2:

I Googled for some hours and I found out that there is a problem about triggering the Javascript events and the click action from web-driver. Additionally I have a span tag in my web-page that has an onclick event and I also have this problem on it.

I'm assuming no errors are being thrown? Are there nearby elements that have javascript attached to them? — Nathan Merrill
– Nathan Merrill, Commented Nov 4, 2013 at 14:22
@MrTi, yes there is no error and of course there are some js codes. I don't how can it be related. — Zeinab Abbasimazar
– Zeinab Abbasimazar, Commented Nov 4, 2013 at 14:28
Can you post the javascript code that is listening for the plus/minus click event? — Alex Wittig
– Alex Wittig, Commented Nov 4, 2013 at 14:44
@MrTi, I posted the js code in the question, but could please explain me the relationship between js code and the problem? — Zeinab Abbasimazar
– Zeinab Abbasimazar, Commented Nov 4, 2013 at 14:53
I am looking for the code that calls changeTree() when a click happens. That will help make sure that your selenium code is clicking the right thing. — Alex Wittig
– Alex Wittig, Commented Nov 4, 2013 at 15:00

Zeinab Abbasimazar · Accepted Answer · 2015-08-02 07:34:51Z

20

After some tries like .execute_script("changeTree();"), .submit(), etc, I have solved the issue by using the ActionChains class. Now, I can click in all elements that they have java-script events as onclick. The code that I have used is this:

from selenium import webdriver
driver = webdriver.Firefox()
driver.get('someURL')
el = driver.find_element_by_id("someid")
webdriver.ActionChains(driver).move_to_element(el).click(el).perform()

I don't know if it occurred just to me or what, but I found out that I should find the element right before the key command; otherwise the script does not perform the action. I think it would be related to staling elements or something like that; anyway, thanks all for their attention.

edited Aug 2, 2015 at 7:34

answered Nov 5, 2013 at 10:15

Zeinab Abbasimazar

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4 Comments

Lawrence DeSouza Over a year ago

What is driver here? Moreover what is webdriver?

Mark K Over a year ago

@Zeinab Abbasi, this is great! shall be "el = driver.find_element_by_id("someid")"?

Zeinab Abbasimazar Over a year ago

@MarkK you're absolutely right! It's a typo! Thank you!

m3nda Over a year ago

@LawrenceDeSouza driver is the name you set to webdriver.Firefox() instance. webdriver is the class webdriver at selenium module. The ActionChains is used without set it to a name like it does with the driver, so it may be confusing to understand. U could do too eldriver = webdriver.ActionChains(etcetc).move(etc).click(etc) then eldriver.perform().

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