Question

I have a UIWebView which shows static content and reacts to various swipe gestures through its controller.

The text selection has been disabled but now I am working on a new feature to allow text selection and present a custom context menu.

Now I need to be able to detect when the text selection is active so that I can turn off the swipe gestures.

The only method I can think of is to check if there is selected text using JS in the swipe handler methods. Any other ideas? Does anybody know how to do this better?

Thanks.

Answer 1

I ended up using the following method to disable and enable the gesture recognizers using the Rangy library. Works great.

- (BOOL) isSelectionActive
{
    NSString * resultStr = [self.contentView stringByEvaluatingJavaScriptFromString:
                            @"rangy.getSelection().isCollapsed"];

    NSLog(@"resultStr: %@", resultStr );

    if ([resultStr isEqualToString:@"true"]) {
        return NO;
    }
    else {
        return YES;
    }
}