This also fixes the C++ side to give the right baseline information.
Previously it was giving the baseline distance for the font, but not
for the actual laid-out text.
I considered also providing a "defaultBaseline" accessor that returns
the distance for the actual dominant baseline, but it turns out right
now we never decide the baseline is ideographic. We always use the
alphabetic baseline. We should probably fix that...
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1200233002.
I had to add back document.createText() since new Text()
does not work in the new world yet.
LayoutRoot is a new Dart-exposed class which holds the Frame and
all associated machinery, sufficient to trigger a restyle
and layout of the subtree.
This is all kinda hacky and I'm sure likely to cause many
crashes if folks call random methods on these disconnected
trees.
But this makes it at least possible to paint text for now
and we can improve this in the coming days.
This really should have Adam's review. It's hugely hacky
but I'd like to negotiate out with him the timeline on
which we should fix some of these hacks.
R=ianh@google.comTBR=abarth@chromium.org
Review URL: https://codereview.chromium.org/1148253003
This adds a new abstract 'Canvas' which is similar to SkCanvas.
PaintContext implements Canvas while still having its
own commit() method to cause the paint actions to apply to
the Element for the next frame.
This adds a new PictureRecorder which also implements Canvas
and has an endRecording() method which returns a Picture
(another new interface) which can be held from Dart.
There is also now a rootPicture setter on Document which takes
a Picture and will then make the Document draw that Picture
until changed.
This piggybacks on the existing custom painting system
which adds the painting at background-and-borders paint
time so technically if you both set rootPicture as well as
construct a DOM you will draw the DOM on top of your picture. :)
R=mpcomplete@chromium.org
Review URL: https://codereview.chromium.org/1122423009
This exposes the last hooks needed to implement flexbox layout. For now,
I didn't worry too much about the exact API we're exposing since this will
all change with the upcoming redesign (e.g. https://codereview.chromium.org/1093633002).
minContentWidth == the width if the element were to wrap at every wrapping point (not including border/padding)
maxContentWidth == the width if the element were to only wrap at hard wrapping points (e.g. \n inside a whitespace: pre).
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1101793003
If your layout manager changes, then you need to setNeedsLayout,
otherwise the next frame doesn't even get scheduled. We already
correctly handle going from not having layout to having one or
vice versa by doing the more drastic reattaching since that
requires changing your actual render class.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1060013005
We weren't correctly marking an element as needing style
recalc if it was *losing* it's layout manager. We were
only doing so when it was gaining a layout manager for
the first time.
Review URL: https://codereview.chromium.org/1082273004
Text can only only inside paragraphs and inlines. This patch makes it
so we stop putting such text nodes in the render tree at all if their
parent is not a paragraph or an inline.
This is the final step in making it so that we don't create anonymous
renderers, which fixes a crash in the new custom layout code.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1077473002
We only ever create RenderParagraphs now. The only non-trivial change here
is making RenderView a RenderFlexibleBox. This required changing custom.sky.
That test was written in a fragile way that behaved differently if we
did multiple layouts. Instead, having it be less racy and only change
values during the test itself.
This also throws a wrench in moving all the layout code to dart
because we can't set the layout manager on the RenderView. Maybe
we need to explicitly let you do so.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1068683002
-Temporarily add setting override width as well so that we correctly bypass in RenderBox::computeLogicalWidth.
-Add setNeedsLayout so that the author code can force layouts (e.g. when the container's width changes).
-Have setLayoutManager force a reattach of the element if it's renderer wasn't a custom layout one before.
-Remove the laying out of children from RenderCustomLayout::layout. This is the job of the author code.
-Add a test case.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1055263002
This allows setting x/y/width/height directly on an element
during a synchronous layout callback. At the moment, you can do
dangerous things (e.g. change tree structure). In a followup patch
we'll make that impossible via an IDL guard.
R=abarth@chromium.org
Review URL: https://codereview.chromium.org/1023753007
Instead of running paint requests during microtasks, we run them after updating
layout for the current frame. After draining all the paint requests, we then
drain whatever commits are available.
It's still possible that requestPaint callbacks can dirty style and layout
information, so we need to clean that information after servicing the requests.
Ideally we'd block these callbacks from dirtying style or layout information.
R=ojan@chromium.org
Review URL: https://codereview.chromium.org/1027563002
This CL adds just enough custom painting to Sky to make
sky/examples/painting/circle.sky draw a circle. Over time, we should be able to
elaborate this system into something interesting and to make it actually work
in a reasonable way.
R=ojan@chromium.org
Review URL: https://codereview.chromium.org/1017593005
This patch adds utility functions which provide a single choke point for calling into sky application code. For now this is only serving the purpose of having a common trace event for calls into app code.
R=abarth@chromium.org, abarth
BUG=
Review URL: https://codereview.chromium.org/941153003
This CL updates sky-box, sky-button, sky-checkbox, sky-input, and sky-radio to
work in Dart. We don't have a data binding system yet, so there's a bit more
plumbing in the code.
This CL adds support for sky-element@attributes, which lets you specify which
attributes your element supports. We use this information to synthesize getters
and setters for those attributes and to dispatch to mumbleChanged methods when
the attributes change.
I've also wrapped the widgets demo itself in a sky-scrollable so the whole
thing scrolls.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/946813005
This CL implements custom elements. The design is as follows:
1) Authors subclass Element and call registerElement.
2) When we create C++ elements for custom elements, we call the author's
constructor synchronously.
3) The attach/detach/attributeChanged callbacks are called either:
a) when exiting the current custom element callback scoped (e.g., before
returning from appendChild), or
b) when draining the microtask queue.
The implementation in this CL is a bit fragile because we don't detect name
registration conflicts and we let you create custom elements with the same name
as built-in elements. Also, not every part of the engine is prepared to execute
script synchronously below createElement. We'll need to iron out these issues
over time, but this CL is a start.
R=ojan@chromium.org
Review URL: https://codereview.chromium.org/943013002
This CL is progress towards deleting the concept of an HTMLElement entirely. We
won't actually get all the way there in this CL series, but we're getting
closer. This CL also will let us make custom elements just be Elements instead
of HTMLElements.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/942933003
We shouldn't need pendingScripts in ScriptRunner since
we should never be trying to run scripts when we're
not ready to run them.
However this wasn't completely true in the case of imports
there was code to have us break before any start tag after
an <import> was seen, but it was subtly wrong in that it
it would include the start-tag it was trying to break before
in the chunk it sent to the main thread.
This didn't run out to be the problem I was facing, but I fixed
it anyway. The problem which was actually preventing me from
removing pendingScripts was adding a check inside
didRecieveParsedChunk... to check if imports were pending and
add the chunk to the list of pending chunks.
I also renamed m_speculations to m_pendingChunks since these
chunks are never speculative anymore.
We can't test the off-by-one import-breaking code with our
current system, but it would be trivial to test with a
self-closing custom element if/when we ever add custom
elements back to the system.
R=abarth@chromium.org
BUG=
Review URL: https://codereview.chromium.org/934083002
This doesn't yet support having both named and optional
arguments, but once I have an example of that it should
be trivial to add.
I also cleaned up the generation a little so the generated
dart file looks nicer. :)
R=abarth@chromium.org
BUG=
Review URL: https://codereview.chromium.org/923093003
Normal trace events already go directly to base. This CL removes the remaining
trace events that were still indirected through blink::Platform. These were
just the half-finished inspector timeline trace events, which currently aren't
actually hooked up to anything.
This CL also removes the redunant "convertable to trace format" wrappers and
moves their one remaining use over to just using the version in base directly.
R=eseidel@google.com, ojan@chromium.org
Review URL: https://codereview.chromium.org/889823002
