[Webkit-unassigned] [Bug 45114] New: Web Inspector: show status message below call stack when debugger is paused

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45114

           Summary: Web Inspector: show status message below call stack
                    when debugger is paused
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: podivilov at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, loislo at chromium.org


Created an attachment (id=66382)
 --> (https://bugs.webkit.org/attachment.cgi?id=66382)
Screenshot.

Web Inspector: show status message below call stack when debugger is paused.

When pausing on DOM mutation event such as subtree modification, it's necessary to notify user about why we've paused.
For JavaScript events it's usually obvious, but we may want to add status messages for JavaScript events for consistency.

The list of status messages for discussion:

 JavaScript events:
* "Paused."
* "Paused on debugger statement."
* "Paused on javascript breakpoint."
* "Stepped over."
* "Stepped into."
* "Stepped out."
* "Paused on exception."
* "Paused on uncaught exception."

 DOM events:
* "Paused on "Subtree Modified" breakpoint set on <node>, because new child was added to it's descendant <target>."
* "Paused on "Subtree Modified" breakpoint set on <node>, because new child was added to that node."
* "Paused on "Subtree Modified" breakpoint set on <node>, because because it's descendant <target> was removed."
* "Paused on "Node Removed" breakpoint set on <node>."
* "Paused on "Attribute Modified" breakpoint set on <node>."

<node> and <target> are clickable node references (see screenshot).

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