How to write xpath to get result for current active window? - selenium

Question

I have same button like Save & Close on different tab in my application. If I write XPath like //button[contains(text(), 'Save')] it shows result for all button with 'Save' text present on different tab either active or inactive. Is there any way to get result for 'Save' button only for currently opened active tab?
These are HTML for 'Save' button for different places. I want to write one XPath which should work for all 'Save' button so that I can use it in a method. Wanted to know is there any way to get result for presently opened tab?
1)
<button class="btn ng-binding btn-primary" style="margin-right:5px;" ng-class="checkDeleteCrud()" ng-click="modalActionManager()" ng-disabled="disableSaveButton()" ng-hide="crudStatus==='V'" type="button" aria-hidden="false">Save
</button>
2)
<button class="btn ng-binding btn-primary" ng-class="checkDeleteCrud()" ng-click="modalActionManager()" ng-disabled="( notValidType() || locksavebutton || !createStatisticsForm.$dirty ) && saveButtonText=='Save' " ng-hide="crudStatus==='V'" type="button" aria-hidden="false">
Save
</button>
3)
<button class="btn ng-binding btn-primary" style="margin-right:5px;" ng-class="checkDeleteCrud()" ng-click="modalActionManager()" ng-disabled="disableSaveButton()" ng-hide="crudStatus==='V'" type="button" aria-hidden="false">Save
</button>

Answer 1

If you are looking for something generic for visible button why not simply go with CSS Selector like :
button[ng-disabled*=' ']
If I explain currently all your disabled elements have ng-disabled value equal to disableSaveButton() but the active element doesn't have this function but contains data with spaces so I will look in any spaces within button ng-disabled data simple.
Hope this helped.

Answer 2

First look for the active tab, for this you need to know how the active tab in the Dom differs from non-active tabs. Then look in this element for a button with the text "Save". Use a dot as the first character in your XPath expression.
Let say webelement "tab" is the active tab then you can find the button as follows (C# code):
tab.FindElement(ByXPath(".//button[contains(text(),'Save')]")