Scrolling in virtual scroll until element is visible

Robot Framework
1

Hello guys,
I have a problem finding a way to solve, in my project on a page is present virtual scroll, because of that I can get all the elements and their text.
I need a solution to find that will scroll down the current list until the next loaded elements will contain the needed element with the needed text/title will be visible.
This page allows finding only 10 elements, each scroll will eliminate the elements opposite to the direction of scrolling.
I’m trying also to find a way based on “Execute Javascript”, but currently I’m not so experienced to work with that approach.
Help me please, or give some tips to know where can I find the solution.
Have a great day!

2

Just if someone will read this post.
In case of virtual scroll and lazy load, that load only 9 elements and no more, I found such a way that works perfectly:
Scroll in page for needed name
[Arguments] ${name}
Click Element xpath=//cdk-virtual-scroll-viewport
FOR ${scroll_index} IN RANGE 100
Set Browser Implicit Wait 0.01
${is_card_found}= Run Keyword And Return Status Element Should Be Visible xpath=//card[contains(., “${name}”)]
Run Keyword If ‘${is_card_found}’==‘True’ Exit For Loop
Press Keys NONE ‘\ue00f’
END

Here “Press Keys NONE ‘\ue00f’” the code if for clicking the page down. Such approach also works if you’ll click on arrow_down/up

The first step of clicking, is to focus on the virtual-scroll global page element, because in other cases the page do no scroll down because of the fixed menus

3

Just an FYI

From the documentation for Press Keys you can find a link to Selenium Keys, which tells you

PAGE_DOWN *= ‘\ue00f’

so you should be able to replace

Press Keys    NONE    ‘\ue00f’

with

Press Keys    NONE    PAGE_DOWN

Dave.

4

The problem is that I’ve tried to use PAGE_DOWN, but, keyword ran successfully but page/element is not scrolled

vin., 28 iul. 2023, 19:12 Dave via Robot Framework <notifications@robotframework1.discoursemail.com> a scris:

5

I’ll admit I’ve not used the Page Down key in my scripts, but the other key names have worked for me, perhaps you found a bug?

Dave.

6

That may be related to the page, cdk-virtual-scroll and the lazy load.
I need to try on other pages and investigate if it is a bug with Robot or not.

sâm., 29 iul. 2023, 03:57 Dave via Robot Framework <notifications@robotframework1.discoursemail.com> a scris:

7

My guess (and it’s just a guess) is it’s more likely a bug with SeleniumLibrary than Robot

Dave.

8

I’ll do some research next week. In case it’s a bug, where I should I report it?

sâm., 29 iul. 2023, 13:22 Dave via Robot Framework <notifications@robotframework1.discoursemail.com> a scris: