### Try
https://treeherder.mozilla.org/#/jobs?repo=try&revision=f1bad5e5282812225da95c0ea9e2ef173640b5da
### Summary
!!Comparing numerous complex websites such as github, facebook, cnn etc. the cascade now matchers that of Chrome so we are in a much better place.!!
According to https://www.w3.org/TR/css-cascade-3/#cascading (which platform follows now) and https://www.w3.org/TR/css-cascade-4/#cascading we should now be doing this (descending order):
- Transition declarations
- User-Agent & !important
- User & !important
- Author & !important
- CSS Animations, @keyframes
- Author, normal weight
- User, normal weight
- User-Agent, normal weight
- specificity
- Sheet Index
- Rule Line
- Rule Column
We are only dealing with CSS selectors here so we can safely drop Transition declarations and CSS Animations because their presence here is irrelevant when it comes to the CSS cascade information we display in the computed view.
This leaves us with:
- User-Agent & !important
- User & !important
- Author & !important
- Author, normal weight
- User, normal weight
- User-Agent, normal weight
- specificity
- Sheet Index
- Rule Line
- Rule Column
### Changes
- References to content stylesheets have been changed to author stylesheet to closely match the technical terms author, user and agent stylesheets.
- Simplified and modernized a bunch of for loops to make the code easier to understand.
- Previous to these changes all matching parent rules were classed as equal e.g. color on the body tag was equal to color on a node's immediate container. We now use the `distance` variable to tell how close a rule is to the current node. This is the highest qualifier in our cascade calculation.
- The `_agentSheet`, `_authorSheet` and `_userSheet` properties are now used to obtain a sheets origin.
- `elementStyle` was renamed to `inlineStyle` in order to correctly identify the rule's origin.
- We used to sort the matchedSelectors to move rules with `STATUS.MATCHED` above `STATUS.PARENT_MATCH` but this is unnecessary now that we have the `distance` property so we no longer do this.
- The `compareTo()` method has been updated to match https://www.w3.org/TR/css-cascade-3/#cascading (which platform follows now) and https://www.w3.org/TR/css-cascade-4/#cascading. It has also been simplified and made far less prone to error.
Differential Revision: https://phabricator.services.mozilla.com/D23711
--HG--
extra : moz-landing-system : lando
We add a new `BigInt` grip type that can be consumed by reps.
A few test cases are added to ensure this works as expected.
Differential Revision: https://phabricator.services.mozilla.com/D24669
--HG--
extra : moz-landing-system : lando
Replaced instances of callers in both C++ and JS files to query the state from the principal directly.
Differential Revision: https://phabricator.services.mozilla.com/D22532
--HG--
extra : moz-landing-system : lando
Except for rawParentNode, all consumers of getDocumentWalker should be ok with this fallback.
Differential Revision: https://phabricator.services.mozilla.com/D24414
--HG--
extra : moz-landing-system : lando
The Flexbox Inspector uses platform APIs that don't take zoom into account whilst the Grid Inspector uses APIs that do take zoom into account.
This means that the zoom calculations when repositioning the canvas need to be different when called from the Flexbox Inspector than when called from the grid inspector.
I have added a `zoomWindow` option to `canvas.js::updateCanvasElement()` that allows us to optionally apply zoom to the current canvas position and the flexbox issue reported in the bug now works just fine.
All the usual other test cases work just fine with this patch applied.
Differential Revision: https://phabricator.services.mozilla.com/D23887
--HG--
extra : moz-landing-system : lando
This makes it possible to pass a third parameter which is a XPathResult constant.
Test cases are added to ensure this works as expected.
Differential Revision: https://phabricator.services.mozilla.com/D23307
--HG--
extra : moz-landing-system : lando
This makes it possible to pass a third parameter which is a XPathResult constant.
Test cases are added to ensure this works as expected.
Differential Revision: https://phabricator.services.mozilla.com/D21476
--HG--
extra : moz-landing-system : lando
There is one spot I am unsure about, and that is the test:
devtools/server/tests/unit/test_threadlifetime-06.js -- should this be kept or do we want to remove
it as well?
Differential Revision: https://phabricator.services.mozilla.com/D21674
--HG--
extra : moz-landing-system : lando
The only fishy bit is the animation stuff. In particular, there are two places
where we just mint the revert behavior:
* When serializing web-animations keyframes (the custom properties stuff in
declaration_block.rs). That codepath is already not sound and I wanted to
get rid of it in bug 1501530, but what do I know.
* When getting an animation value from a property declaration. At that point
we no longer have the CSS rules that apply to the element to compute the
right revert value handy. It'd also use the wrong style anyway, I think,
given the way StyleBuilder::for_animation works.
We _could_ probably get them out of somewhere, but it seems like a whole lot
of code reinventing the wheel which is probably not useful, and that Blink
and WebKit just cannot implement either since they don't have a rule tree,
so it just doesn't seem worth the churn.
The custom properties code looks a bit different in order to minimize hash
lookups in the common case. FWIW, `revert` for custom properties doesn't seem
very useful either, but oh well.
Differential Revision: https://phabricator.services.mozilla.com/D21877
--HG--
extra : moz-landing-system : lando
Similar to bug 1528654, we currently bail out too early and don't process all of the correct scripts when adding breakpoints.
Differential Revision: https://phabricator.services.mozilla.com/D22355
--HG--
extra : moz-landing-system : lando
We were clearing the ConsoleAPI messages, but not the one
issued by the ConsoleService. A previous patch added
Services.console.resetWindow, so we can use it in `clearMessagesCache`.
Differential Revision: https://phabricator.services.mozilla.com/D21694
--HG--
extra : moz-landing-system : lando
Now that the server is by default loaded in the shared system compartment,
we have to special cases the code debugging system compartments.
When devtools.chrome.enabled is turned on, the event collector is
inspecting the system compartment's event listener.
In this case, we are using a special Debugger instance loaded in
a sandbox flagged with invisibleToDebugger=true. This forces loading it
in a distinct compartment and helps the debugger know about the boundaries
between debugger and debuggee code.
It should be safe to only load the Debugger and not the whole server here
as event collector is only inspecting and doesn't register any callback on
the Debugger API.
Differential Revision: https://phabricator.services.mozilla.com/D22070
--HG--
extra : moz-landing-system : lando
When reviewing https://bugzilla.mozilla.org/show_bug.cgi?id=1521052 I did not think about Firefox for Android which is not using e10s.
This means the main DebuggerServer will be killed when there are no connections left. Happy to discuss more about the preferred solution.
This is a regression in 66 and I hope to uplift a fix for this.
Differential Revision: https://phabricator.services.mozilla.com/D20830
--HG--
extra : moz-landing-system : lando
When reviewing https://bugzilla.mozilla.org/show_bug.cgi?id=1521052 I did not think about Firefox for Android which is not using e10s.
This means the main DebuggerServer will be killed when there are no connections left. Happy to discuss more about the preferred solution.
This is a regression in 66 and I hope to uplift a fix for this.
Differential Revision: https://phabricator.services.mozilla.com/D20830
--HG--
extra : moz-landing-system : lando
This patch adds a boolean option to skip the cached value of `StyeRuleActor.authoredText` and re-parse the stylesheet for its value.
When changing content of a descendant rule inside an ancestor like @media or @select, the cached `authoredText` value is outdated.
This yields incorrect data when requesting the complete rule authored text, hence the need for a cache-busting option.
In addition to this change, there is a slight refactor to include the generated unique selector for the mock-rule for element inline styles.
Differential Revision: https://phabricator.services.mozilla.com/D21033
--HG--
extra : moz-landing-system : lando
When removing all declarations from a rule via the Rule view, the authoredText value ends up as an empty string.
This patch ensures that the fallback cssText is not used in that case because that accidentally restores the whole declaration block when re-parsing the text of the rule.
Differential Revision: https://phabricator.services.mozilla.com/D14753
--HG--
extra : moz-landing-system : lando
The basic idea is to make non-initial about:blank fire
document-element-inserted notifications just like every other document. We
then ensure that there's a notification (initial-document-element-inserted)
that only gets fired once per window for documents that are in a window. This
notification is what webextensions use to inject into the document.
The old setup which injected into about:blank when its global is created gets
removed in favor of injecting the same way as into every other document.
The changes to Document.cpp are fixing a bug in the "block the parser" stuff
webextensions do. For about:blank, the blocking happens at a point when the
parser really has nothing else to parse (since it's parsing the empty string).
So the blocking is a no-op. But we do want to prevent DOMContentLoaded firing,
because otherwise the "end of document" scripts could run before we finish
doing the "beginning of document" work in webextensions. So we want to make
sure we block DOMContentLoaded, not just the load event.
Differential Revision: https://phabricator.services.mozilla.com/D19892
--HG--
extra : moz-landing-system : lando
A JSScript can be explicitly cloned and applied to a new realm. When this is done within the same compartment
as the original JSScript, it maintains its reference to the original ScriptSourceObject. This can lead to the
potentially surprising fact that using Debugger.findScripts({ source }) can return multiple Debugger.Script
objects representing the same function, but in multiple realms.
When we query for breakpoints in a given source, we want to take the first column breakpoint on a given line,
but that needs to apply to all potential instances of the Debugger.Script for that location, not just the first one.
Differential Revision: https://phabricator.services.mozilla.com/D20431
--HG--
extra : moz-landing-system : lando
It's possible that CSSPseudoElement will grow a 'ownerDocument' member in future
so instead we should test for '.element'. We could also test for '.type' but it
seems more likely that Element will grow a 'type' member than an 'element'
member.
Ideally we should really test if the target is an instanceof CSSPseudoElement
but unfortunately the window() getter it itself defined in terms of the node()
getter (which calls isPseudoElement) so we'd end up with unbounded recursion
unless we restructure these getters.
Differential Revision: https://phabricator.services.mozilla.com/D20428
--HG--
extra : moz-landing-system : lando
Depends on D20195
This series of patches depends on the patch from [Bug 1525238](https://bugzilla.mozilla.org/show_bug.cgi?id=1525238)
- adds method to identify a CSS Rule actor by id
- adds context menu option to the Changes panel to allow copying the rule's authored text to the clipboard
Differential Revision: https://phabricator.services.mozilla.com/D20196
--HG--
extra : moz-landing-system : lando
This series of patches depends on the patch from [Bug 1525238](https://bugzilla.mozilla.org/show_bug.cgi?id=1525238)
This patch adds a new method to the StyleRuleActor on the server to expose the full text content of a CSS rule over the protocol to the client. This means exposing the CSS rule's authored text including comments and any nested rules if the target rule is an ancestor rule, like @media or @supports.
There's minor refactoring to include additional rule types for which StyleRuleActors will be created: @supports, @media, @keyframes. These are not explicitly rendered in the Rule view and shouldn't impact it. The Rule view filters for CSS Style Rules, element inline style and has special handling for keyframe at-rules.
Differential Revision: https://phabricator.services.mozilla.com/D20195
--HG--
extra : moz-landing-system : lando
this patch introduces events for the webconsoleFront -- not all of them are being listened
to by their subscribers yet, but this is the bulk of the effort to move events to Protocol.js
Differential Revision: https://phabricator.services.mozilla.com/D18832
--HG--
extra : moz-landing-system : lando
Refactors the Redux state for the Changes panel so that rules have
a `selectors` array instead of just a single `selector` string.
The `selectors` array represents the **history** of selector text the
rule has over time, not the actual list of multiple selectors it has
(multiple selectors are collapsed into a single comma-separated string
regardless of how many they are).
When the server logs changes, the rule's selector text is checked
against the history of previously logged selectors.
If the incoming selector is different than the _first_ item in
the tracked rule's `selectors` array, it means the selector was renamed
so it is pushed onto the array (added to the history).
If it's the same, the whole array can be reduced to the original value
because it means that either:
- the selector didn't change between operations (ex: after declaration changes)
- the selector reverted back to its original name.
This `selectors` array is used in the React component in Part 2 of this
series to render any necessary diff view of the selector.
The old approach (whole rule removal + whole rule addition) is replaced
by this refactor. The introduction of the StyleRyleActor actor id from
the server as the rule id on the client in Bug 1525238 means that the
selector change can no longer behave like two distinct rules.
The actorID/rule id are preserved after selector renames. This necessary
for the some export options to work consistently (like Copy Rule with changes applied).
Differential Revision: https://phabricator.services.mozilla.com/D19828
--HG--
extra : moz-landing-system : lando
Replaces custom generated hashes with the actorIDs which are stable
during the editing session enough to use as unique identifiers.
For future restore / persistence, we still have the metadata about each
rule and stylesheet to attempt to identify them again.
Differential Revision: https://phabricator.services.mozilla.com/D18660
--HG--
extra : moz-landing-system : lando
The reason why we use RelaxedAtomBoolis that
ScrollSnapUtils::GetSnapPointForDestination() is called both from the main and
the compositor threads, and the function will have a branch depending on the
pref value.
Differential Revision: https://phabricator.services.mozilla.com/D20101
--HG--
extra : moz-landing-system : lando
The basic idea is to make non-initial about:blank fire
document-element-inserted notifications just like every other document. We
then ensure that there's a notification (initial-document-element-inserted)
that only gets fired once per window for documents that are in a window. This
notification is what webextensions use to inject into the document.
The old setup which injected into about:blank when its global is created gets
removed in favor of injecting the same way as into every other document.
The changes to Document.cpp are fixing a bug in the "block the parser" stuff
webextensions do. For about:blank, the blocking happens at a point when the
parser really has nothing else to parse (since it's parsing the empty string).
So the blocking is a no-op. But we do want to prevent DOMContentLoaded firing,
because otherwise the "end of document" scripts could run before we finish
doing the "beginning of document" work in webextensions. So we want to make
sure we block DOMContentLoaded, not just the load event.
Differential Revision: https://phabricator.services.mozilla.com/D19892
--HG--
extra : moz-landing-system : lando
Any time we QI to nsIFrameLoaderOwner in tests, we're really accessing
a MozFrameLoader. We don't need to be doing that anymore.
Differential Revision: https://phabricator.services.mozilla.com/D19727
--HG--
extra : moz-landing-system : lando
There are 2 changes in this patch.
In js-property-provider, we iterate over a Set
and delete item we don't want into instead of
turning the Set into an array, filter on it, and
convert it back to a new Set.
In the autocomplete function, we don't use regexp
anymore in the sort callback as we already have
a way to tell if we're performing an element access.
Differential Revision: https://phabricator.services.mozilla.com/D19471
--HG--
extra : moz-landing-system : lando
Now that the base Target class is managing the thread client,
we no longer have to send "newSource" on the target actor, and instead,
listen for newSource directly on the thread client.
We should probably align updatedSource and have this event being emitted on
the thread actor as well.
Depends on D18813
Differential Revision: https://phabricator.services.mozilla.com/D18814
--HG--
extra : moz-landing-system : lando
There is still some tight connection between ThreadClient and Target,
- Target.threadClient, which should ideally disappear in favor of
target.getFront("thread")
- Target.threadClient is manually nullified from ThreadClient.detach,
but that should disappear as well thanks to getFront.
Differential Revision: https://phabricator.services.mozilla.com/D18813
--HG--
extra : moz-landing-system : lando
This will be used in telemetry events. Also,
we add `errorMessageName` in evaluation result packets.
Stubs are generated so they include the new property.
Differential Revision: https://phabricator.services.mozilla.com/D18925
--HG--
extra : moz-landing-system : lando
Evaluation of debuggee code should always begin with an empty microtask queue.
In xpcshell tests, this is not guaranteed, as it is in the web platform. This
patch changes those devtools server xpcshell tests that break this rule in a
detectable way to run the debuggee code as a separate HTML task.
In an actual browser environment, debuggee JavaScript runs as an HTML task.
Since HTML requires a microtask checkpoint at the end of each task, this means
that a debuggee task begins execution with an empty microtask queue, free of
microtasks from other tabs or the browser machinery itself. Hence, while the
debugger is pausing debuggee code, it is safe for it to save the debuggee's
microtask queue, so that those jobs do not make progress. (Which is fortunate,
because it *must* do so, lest the debuggee's microtasks run during the pause!)
In an xpcshell test, however, there is no guarantee that debuggee code begins
execution with a fresh microtask queue: the test may call `eval` or
`evalInSandbox` at any time. If such an evaluation hits a breakpoint, `debugger`
statement, etc. that invokes a Debugger hook, supervisory microtasks from the
test harness code may be set aside along with the debuggee's microtasks. If the
hook code then blocks waiting for those microtasks to run, the test will hang.
Differential Revision: https://phabricator.services.mozilla.com/D18904
--HG--
extra : moz-landing-system : lando
Making use of the new SpiderMonkey APIs for available breakpoints means
that the server needs to think a lot less about where it is pausing and
allows us to drop the concept of a pause points from the server entirely.
It is now up to SpiderMonkey to decide where it will and will not stop
when it is stepping.
Differential Revision: https://phabricator.services.mozilla.com/D17665
--HG--
extra : moz-landing-system : lando
The step-out logic currently has a special case to skip pausing onPop
when stepping out of the current frame. This logic gets confused if
you are already _in_ the onPop of the current frame though, and
causes you to also fail to pause onPop in the parent frame.
Differential Revision: https://phabricator.services.mozilla.com/D17663
--HG--
extra : moz-landing-system : lando
This brings SpiderMonkey more in line with V8 for the positions that it uses for expressions
nested within statements. We generally prefer to use the expression's own location
rather than the location of the statement, in the majority of cases.
Differential Revision: https://phabricator.services.mozilla.com/D15993
--HG--
extra : moz-landing-system : lando
Depends on D19159
This will fix the test browser_aboutdebugging_serviceworker_status.js when running with dom.serviceWorkers.parent_intercept=true
(`./mach test browser_aboutdebugging_serviceworker_status.js --setpref dom.serviceWorkers.parent_intercept=true`)
Differential Revision: https://phabricator.services.mozilla.com/D18365
--HG--
extra : moz-landing-system : lando
Replaces custom generated hashes with the actorIDs which are stable
during the editing session enough to use as unique identifiers.
For future restore / persistence, we still have the metadata about each
rule and stylesheet to attempt to identify them again.
Differential Revision: https://phabricator.services.mozilla.com/D18660
--HG--
extra : moz-landing-system : lando
This gives a very noticable increase in speed. When Brad finishes https://bugzil.la/1523336 we can stop walking the DOM and simply use `parentFlexElement` and `parentGridElement`.
Differential Revision: https://phabricator.services.mozilla.com/D18674
--HG--
extra : moz-landing-system : lando
I would have thought that the anonymous node fix would also have fixed this but we have had to manually add the before and after pseudo elements.
Differential Revision: https://phabricator.services.mozilla.com/D18536
--HG--
extra : moz-landing-system : lando
This patch makes it so that all target fronts inherits from a Target class mixin.
We are using a mixin as fronts should inherit from a custom Front class,
which is augmented with its own RDP request and events defined in its spec.
(This is done via FrontClassWithSpec(spec))
Depends on D15830
Differential Revision: https://phabricator.services.mozilla.com/D15831
--HG--
extra : moz-landing-system : lando
This is another very specific issue.
If you have `<img name="attributes"/>` in the dom then `document.attributes` will return the `<img>` tag.
In the source we bail if `!this.rawNode.attributes` but if we are on the document node this returns the image tag. Because the image tag is not a `NamedNodeMap` trying to iterate over the tag throws the error.
There is a test file [here](https://bugzilla.mozilla.org/attachment.cgi?id=9040577).
Differential Revision: https://phabricator.services.mozilla.com/D18340
--HG--
extra : moz-landing-system : lando
BrowsingContextTargetActor, which is calling `_detach` expects it to return `true`
if everything worked as expected. But the overloaded method in ParentProcessTargetActor
was always returning `undefined`.
Depends on D14957
Differential Revision: https://phabricator.services.mozilla.com/D17925
--HG--
extra : moz-landing-system : lando
When debugging contexts running from the system compartment, the debugger has
to be loaded in a dedicated Loader, with invisibleToDebugger flag turned on.
This ensures that the Debugger API is going to be used from a distinct system
compartment. Otherwise it may be used from the same compartment than the page
we are debugging.
Differential Revision: https://phabricator.services.mozilla.com/D14957
--HG--
extra : moz-landing-system : lando
Now that form argument is no longer used by any front to set its actor ID,
we can remove this argument.
Have a particular look at:
* devtools/client/shared/test/test-actor-registry.js
which was the last Front to be manually instantiated and need some tweaks,
* canvas head.js to create canvas front via getFront,
* RDM manager.js, which requires the EmulationFront to be self managed.
Depends on D17615
Differential Revision: https://phabricator.services.mozilla.com/D17616
--HG--
extra : moz-landing-system : lando
This feature is only used by node and domrulestyle actors and that, only for actor ID.
Instead of this, support this "pass only actor ID rather than full form" feature
in a more dedicated way.
We might followup on that to clarify/simplify doing this: passing only the actor ID
rather than its full form.
Depends on D17613
Differential Revision: https://phabricator.services.mozilla.com/D17614
--HG--
extra : moz-landing-system : lando
Remove all actorid checks in actors and fronts as we never pass a defined `detail` argument in them.
Only domstylerule and node are using detail and that, always with detail="actorid".
Also remove ctx and detail in Front constructor as that's not used by these two actors.
Depends on D17612
Differential Revision: https://phabricator.services.mozilla.com/D17613
--HG--
extra : moz-landing-system : lando
None of our actor define a `formType` in its specification.
This feature has never been used, so remove it and its test.
Differential Revision: https://phabricator.services.mozilla.com/D17612
--HG--
extra : moz-landing-system : lando
With all the dependency removed this pref can be safely removed.
Depends on D17574
Differential Revision: https://phabricator.services.mozilla.com/D17575
--HG--
extra : moz-landing-system : lando
***
Bug 1514594: Part 3a - Change ChromeUtils.import to return an exports object; not pollute global. r=mccr8
This changes the behavior of ChromeUtils.import() to return an exports object,
rather than a module global, in all cases except when `null` is passed as a
second argument, and changes the default behavior not to pollute the global
scope with the module's exports. Thus, the following code written for the old
model:
ChromeUtils.import("resource://gre/modules/Services.jsm");
is approximately the same as the following, in the new model:
var {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
Since the two behaviors are mutually incompatible, this patch will land with a
scripted rewrite to update all existing callers to use the new model rather
than the old.
***
Bug 1514594: Part 3b - Mass rewrite all JS code to use the new ChromeUtils.import API. rs=Gijs
This was done using the followng script:
https://bitbucket.org/kmaglione/m-c-rewrites/src/tip/processors/cu-import-exports.jsm
***
Bug 1514594: Part 3c - Update ESLint plugin for ChromeUtils.import API changes. r=Standard8
Differential Revision: https://phabricator.services.mozilla.com/D16747
***
Bug 1514594: Part 3d - Remove/fix hundreds of duplicate imports from sync tests. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16748
***
Bug 1514594: Part 3e - Remove no-op ChromeUtils.import() calls. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16749
***
Bug 1514594: Part 3f.1 - Cleanup various test corner cases after mass rewrite. r=Gijs
***
Bug 1514594: Part 3f.2 - Cleanup various non-test corner cases after mass rewrite. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16750
--HG--
extra : rebase_source : 359574ee3064c90f33bf36c2ebe3159a24cc8895
extra : histedit_source : b93c8f42808b1599f9122d7842d2c0b3e656a594%2C64a3a4e3359dc889e2ab2b49461bab9e27fc10a7
r=ochameau,nchevobbe
This patch moves stopListeners to the actor, and removes the need for the callback in the
detach call on the client.
Differential Revision: https://phabricator.services.mozilla.com/D16178
--HG--
extra : moz-landing-system : lando
We never really tried to cleanup the DebuggerServer and so a few tests require some tweaks
to acknowledge that once the last connection drop (typically, we close the toolbox or target),
the server is destroyed and dynamically registered actors are also destroyed.
I think it is great to consider that everything is cleaned up as we may followup to destroy
the whole loader.
Depends on D16961
Differential Revision: https://phabricator.services.mozilla.com/D16962
--HG--
extra : moz-landing-system : lando
