iphone - UIWebView: Disable copy/cut options for a rich text editor -

i have uiwebview contenteditable div in order implement kind of rich text editor. need trimm copy & cut options in uimenucontroller appears in web view once user selects piece of text.

there seems lot of solutions around web, reason, non of them applies scenario.

i've subclassed uiwebview , implemented canperformaction:(sel)action withsender: remove copy , cut, once user chooses "select" or "select all", new menu appears, , apparently, web view not intercept action , canperform method not being called.

is there way trimm actions cases?

i adapt another answer of mine case.

the canperformaction: called on internal uiwebdocumentview instead of uiwebview, cannot subclass. runtime magic, it's possible.

we create class has 1 method:

@interface _swizzlehelper : uiview @end  @implementation _swizzlehelper  -(bool)canperformaction:(sel)action {     //your logic here     return no; }  @end 

once have web view want control actions of, iterate scroll view's subviews , take uiwebdocumentview class. dynamically make superclass of class created above subview's class (uiwebdocumentview - cannot upfront because private api), , replace subview's class our class.

#import "objc/runtime.h"      -(void)__subclassdocumentview {     uiview* subview;      (uiview* view in self.scrollview.subviews) {         if([[view.class description] hasprefix:@"uiweb"])             subview = view;     }      if(subview == nil) return; //should not stop here      nsstring* name = [nsstring stringwithformat:@"%@_swizzlehelper", subview.class.superclass];     class newclass = nsclassfromstring(name);      if(newclass == nil)     {         newclass = objc_allocateclasspair(subview.class, [name cstringusingencoding:nsasciistringencoding], 0);         if(!newclass) return;          method method = class_getinstancemethod([_swizzlehelper class], @selector(canperformaction:));         class_addmethod(newclass, @selector(canperformaction:), method_getimplementation(method), method_gettypeencoding(method));          objc_registerclasspair(newclass);     }      object_setclass(subview, newclass); }