But I am using firebug on someone else's web service only available online. Strictly speaking, I am not debugging the application, rather trying to reverse engineering part of the application.
I guess most sophisticated debugging tools like *gdb* offer this feature (i.e., break on arbitrary function invocation point specified by a string name). I am not sure whether there is a traditional debugger that can break at event-handling functions for an arbitrary event specified by its string name. I think this is indeed a very useful feature for working with JavaScript programs too. If Firebug can't do this for the moment, anyone knows other tools offer the functionality for JavaScript? --- Canny On Fri, Jun 26, 2009 at 3:54 PM, Kara Rawson <[email protected]> wrote: > > Canny wrote: > > What I am looking for is actually a little bit different from an > > ordinary conditional break. What I want to do > > is to automatically pause at certain event handlers, e.g., a key press > > event, without explicitly identifying the > > location of the event handlers function. This is interesting in cases > > where the whole JS file is obfuscated so that > > it is hard to find the handler's entry point. Another use case > > motivating this debugging feature is that sometimes > > you may want the program to pause whenever the XMLHttpRequest send() > > is invoked, while it might be tedious > > to exhaust every appearance of the send() function call. > > > > --- Canny > > > > On Jun 26, 2:44 pm, Kara Rawson <[email protected]> wrote: > > > >> Canny wrote: > >> > >>> Hi guys, > >>> > >>> I am fresh to this charming web application debugging tool. But after > >>> some study, I still can't find a way to setup breakpoints in JS file > >>> so that every time certain event is triggered, the execution will > >>> pause there in debugging mode. Is this really possible with Firebug? > >>> > >>> Thanks, > >>> Canny > >>> > >> go to the script tab, select the resource you wanna debugg, then click > >> all the way on the left of the line number of the line you wana break. > >> if you click the breakpoints tab on the panel to the right of this you > >> will see an itemized list of break points, you can also click on watch > >> tab to set watches on specifc classes, functions or class members > >> (variables). > >> > >> kara > >> > > > > > > > > if you wanna break at an event, create a new function which listens > and/or intercepts these events. the function doesn't have to really do > anything, then in your debugger just put a break at where you declare > your function. the debugger will pause the app everytime this function > gets called, IE when the event is triggered. > > debuggers do not let your break on conditions like that, thats is not > what they are designed for or how they work, atleast in the java and js > worlds. > > kara > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Firebug" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/firebug?hl=en -~----------~----~----~----~------~----~------~--~---
