How to call a method in the child window in Angular JS - angularjs

Question

My angular JS application has a view button. When clicking on the view button, it will call method and that method changes the content in the same page. Now I have a request that when clicking on the view button, it has to open in a new tab and display the contents.
Previous code:
HTML:
<md-button ng-click="ctrl.ViewClick(item)">View</md-button>
Controller:
vm.ViewClick = function(item) {
// The browser URL is same but it is a new page with the new contents.
// Calls a angular js service and loads the contents
}
Now, I need to call that function in new browser tab.
I made the following changes but didn't worked. Can you please help me on this.
HTML:
<md-button ng-click="ctrl.NewTabClick(item)">View</md-button>
Controller:
vm.newTabClick = function(item){
$Window.open($location.absURL(), 'blank');
// How do I call vm.ViewClick function after opening the new browser window?
};
This is the old angular JS. Thanks for helping on this.

Answer 1

On workaround you can do in this case is, While opening the page pass query parameter in the URL.
vm.newTabClick = function(item){
// Add `viewLink=true` query parameter with true value
$Window.open($location.absURL() + '&viewLink=true', 'blank');
// Store item in sessionStorage
window.sessionStorage.setItem('item', JSON.stringify(item));
}
And then from the component where you want to call the parameter. You can write below code on $onInit lifecycle hook.
vm.$onInit = function () {
// Inject $routeParams in dependency areay
const storedItem = sessionStorage.getItem('item')
if ($routeParams.viewLink == 'true' && storedItem && storedItem != 'null') {
vm.viewLink(JSON.parse(storedItem));
}
}