Disable selection context menu in iOS safari

问题

I want to disable the default context menu that appears after a certain text is selected in iOS Safari (web browser). Is that possible?

context menu destroy

回答1:

It is possible, see this example. Basically, the important part is to set the right css atributes:

body { -webkit-touch-callout: none !important; }
a { -webkit-user-select: none !important; }

Also, here is a question which solves a similar issue

回答2:

The only way i found was by removing the selection and select again with javascript. Have a look at my code:

/* prevent ios edit-menu */
if (/(iPad|iPhone|iPod)/g.test(navigator.userAgent)) {
    !function(){
        var target = document.body; // the element where the edit menue should be disabled

        var preventSelRecursion;
        document.addEventListener('selectionchange', function(e){
            var S = getSelection();
            if (!S.rangeCount) return;
            if (S.isCollapsed) return;
            var r = S.getRangeAt(0);
            if (!target.contains(r.commonAncestorContainer)) return;
            if (preventSelRecursion) return;
            iosSelMenuPrevent();
        }, false);

        var iosSelMenuPrevent = debounce(function(){
            var S = getSelection();
            var r = S.getRangeAt(0);
            preventSelRecursion = true;
            S = getSelection();
            S.removeAllRanges();
            setTimeout(function(){ // make remove-add-selection removes the menu
                S.addRange(r);
                setTimeout(function(){
                    preventSelRecursion = false;
                });
            },4);
        },800); // if no selectionchange during 800ms : remove the menu

        /* helper-function */
        function debounce(fn, delay) {
            var timer = null;
            return function () {
                var context = this, args = arguments;
                clearTimeout(timer);
                timer = setTimeout(function () {
                    fn.apply(context, args);
                }, delay);
            };
        }
    }();
}

回答3:

According to onclick blocks copy+paste on Mobile Safari?, if the text is in an element that has an onclick event, the context menu won't be displayed.

回答4:

Inspired by Hans Gustavson's answer, I propose a simpler solution in TypeScript:

function disableIosSafariCallout(this: Window, event: any) {
  const s = this.getSelection();
  if ((s?.rangeCount || 0) > 0) {
    const r = s?.getRangeAt(0);
    s?.removeAllRanges();
    setTimeout(() => {
      s?.addRange(r!);
    }, 50);
  }
}
document.ontouchend = disableIosSafariCallout.bind(window);

This solution is actually a workaround. When you select a text, you might still see the text selection callout shows and then disappear immediately. I am not sure whether Hans Gustavson's answer has the same defect...

来源：https://stackoverflow.com/questions/16039219/disable-selection-context-menu-in-ios-safari

标签

javascript

ios

safari

webkit