1879087 - Add option in the tracer to track all DOM Mutations

Status: RESOLVED FIXED

(DevTools :: Debugger, enhancement)

Description

[Alexandre Poirot [:ochameau] [PTO back August 21]]

Bug 1848179 added tracking all the DOM events.
We could also track all the DOM Mutations in the tracer.
This would help identify changes made to the DOM, as well as discover the callsites modifying the DOM.

Comment 1

[Alexandre Poirot [:ochameau] [PTO back August 21]]

Attachment: Bug 1879087 - [devtools] Avoid exception on page reload with the tracer enabled.

For some unexplained reason, conn could be null.

Comment 2

[Alexandre Poirot [:ochameau] [PTO back August 21]]

Attachment: Bug 1879087 - [devtools] Trace DOM mutations.

Also allow logging trace whenever any DOM Element get added, removed or modified.
For now this is exposed only via the console command via:
:tracer --dom-mutations (for all types of mutation)
:tracer --dom-mutations add,attributes,remove (coma separated list of mutation types you want to listen for)

Also revise the handling of "isWorker" so that all checks have the best possible check.

Comment 3

[Alexandre Poirot [:ochameau] [PTO back August 21]]

Attachment: Bug 1879087 - [devtools] Unify all isWorker checks in tracer.jsm.

We weren't consistant in all places checking for the worker codepath.

Also move the initialization of "wait for next user interaction" out of the contructor.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ae72731d9172
[devtools] Avoid exception on page reload with the tracer enabled. r=devtools-reviewers,nchevobbe
https://hg.mozilla.org/integration/autoland/rev/752268d6f3e7
[devtools] Unify all isWorker checks in tracer.jsm. r=nchevobbe,devtools-reviewers
https://hg.mozilla.org/integration/autoland/rev/172bebc247d6
[devtools] Trace DOM mutations. r=devtools-reviewers,nchevobbe

Comment 5

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/ae72731d9172
https://hg.mozilla.org/mozilla-central/rev/752268d6f3e7
https://hg.mozilla.org/mozilla-central/rev/172bebc247d6