extension DOM

var replaceTextInNode = function (parentNode) {
    for (var i = parentNode.childNodes.length - 1; i >= 0; i--) {
        var node = parentNode.childNodes[i];

        //  Make sure this is a text node

        if (node.nodeType == Element.TEXT_NODE && (node.parentNode.tagName == undefined || !/SCRIPT|STYLE/.test(node.parentNode.tagName))) {

            if (node.textContent && node.textContent.trim()) {
                console.log(node.textContent);
                if (ValidatePhoneNumber(node.textContent)) {
                    console.log('phone number is >>>> ' + node.textContent);
                    try {
                        node.parentNode.style.backgroundColor = "red";
                    } catch (error) {
                        console.log(error)
                    }
                }

            }
        } else if (node.nodeType == Element.ELEMENT_NODE) {
            //  Check this node's child nodes for text nodes to act on

            replaceTextInNode(node);
        }
    }
};

function ValidatePhoneNumber(phone) {
    var phoneExp = /(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?/img;

    return phoneExp.test(phone);
}
window.addEventListener('load', function () {
    replaceTextInNode(document.body);


});




 chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
    if (changeInfo.url) {
      chrome.tabs.query({}, function (tabs) {
        console.log('senidng messgae')
        var message = { action: "urlload", senddata: changeInfo.url };
        setTimeout(function () {
          for (var i = 0; i < tabs.length; i++) {
            chrome.tabs.sendMessage(tabs[i].id, message);
          }
        }, 4500);
      });

    }
  });