在RTF编辑器中覆盖IE电子邮件自动格式化

Question

Our site makes use of FreeTextBox , a web-based, rich-text editor. In IE, but in not Firefox, if a user types in something like:

someone@blah

IE automatically creates a mailto hyperlink. I have tested this with other text editors out there and the story is the same with all of them.

Can I override this browser behavior somehow from within my application?

Answer 1

This has to do with the MSHTML editor, which (I'm guessing all) Windows browsers use to instantiate rich text editors. There's a setting called IDM_AUTOURLDETECT_MODE that lets you decide if the autolinking will take place, and the default is true (other browsers apparently set it to false on instantiation, hence no autolinking in Firefox.)

Unfortunately, until recently Microsoft didn't have a mapping from the command ID to a command identifier string, so the function wasn't accessible via Javascript prior to IE9.

I just tried it out in IE9 and can confirm that, for that version and presumably all future ones, you can override the feature by calling

document.execCommand("AutoUrlDetect", false, false);

Note that it's IE9+ only, so you're still stuck for previous versions, and that you'll want to wait until the DOM is loaded before you call it and have some error handling around it, etc, etc.

There's a good summary of the original issue here , and a discussion of the fix in the minor change list here .