Commit graph

293 commits

Author SHA1 Message Date
Matt Brubeck
1f0e42e8fe Remove unused traverse_postorder_absolute_flows method 2017-08-07 17:06:38 -07:00
Matt Brubeck
0d36930727 Add a generic inorder traversal method 2017-08-07 17:06:38 -07:00
Martin Robinson
daf638bc3f Fix fixed position items with parents with CSS clips
In order to properly handle CSS clipping, we need to keep track of what
the different kinds of clips that we have. On one hand, clipping due to
overflow rules should respect the containing block hierarchy, while CSS
clipping should respect the flow tree hierarchy. In order to represent
the complexity of items that are scrolled via one clip/scroll frame and
clipped by another we keep track of that status with a
ClipAndScrollInfo.
2017-08-03 17:52:02 +02:00
Michael Partheil
b07ebbae6b Replace all uses of the style::stylearc alias with servo_arc.
The alias is left there temporarilly and will be removed completely in a later commit where
also components/style/gecko/generated/structs_{debug|release}.rs are re-generated (they still
use the old alias).
2017-07-19 09:29:05 +02:00
Manish Goregaokar
89930e7565 stylo: Switch Gecko over to ServoStyleContext 2017-07-17 18:03:23 -07:00
Manish Goregaokar
808b1f509b stylo: Use ComputedValuesInner instead of ComputedValues when we don't need it 2017-07-17 18:02:25 -07:00
Martin Robinson
e58e8ab42e Upgrade to the latest version of WebRender 2017-07-13 07:44:08 +10:00
Matt Brubeck
2aef2af9b8 Update flags for absolutely positioned elements on style changes
Fixes #17307.
2017-06-30 22:14:28 -07:00
Simon Sapin
316cd35767 Untry 2017-06-18 13:21:51 +02:00
Nicolas Silva
997608f11f Make BaseFlow::stacking_relative_position a vector. 2017-06-14 16:01:01 +02:00
Nicolas Silva
8617320500 Bump euclid to 0.14. 2017-06-14 16:00:59 +02:00
Bobby Holley
7b0679848b Fix up script and layout. 2017-05-02 17:35:45 -07:00
Manish Goregaokar
f8e298b2b3 stylo: support all overflow values
MozReview-Commit-ID: 1iQdUDsb6u9
2017-04-25 13:52:39 -07:00
Martin Robinson
d150cc9f95 Eliminate ScrollRootId
Just use WebRender's ClipId directly. This will allow us to create and
use ReferenceFrames in the future, if we need to do that. It will also
make it easier to have Servo responsible for creating the root
scrolling area, which will allow removing some old hacks in the future.
2017-04-20 08:51:38 +02:00
Martin Robinson
4451b8a771 Used shared clips for overflow:hidden and CSS clip
Instead of passing down a complex clipping region to each item, used
shared clipping to handle overflow:hidden and CSS clips. In addition to
being more efficient, this should also fix quite a few issues related
to absolutely positioned elements.

One existing reftest is slightly modified to avoid tickling a quirk
with the way that WebRender rasterizes masks. We are working out how to
best express these combined masks with the API or need to. The change
does not affect the original subject of the reftest.

Fixes #13109.
Fixes #10151.
Fixes #7575.
Fixes #8074.
Fixes #8780.
2017-04-17 17:06:43 +02:00
Glenn Watson
750794eb77 Update WR (reference frames for fixed position elements). 2017-03-03 10:33:52 +10:00
Anthony Ramine
fe3f4ff0c2 Update serde to 0.9 (fixes #15325) 2017-02-18 21:09:46 +01:00
Pu Xingyu
336aa795b4 Remove cached thread local context from LayoutContext
Remove cached thread local context from LayoutContext, use LayoutContext for
assign_inline_sizes(), and simplify the parallel flow traversal code.
2017-02-08 08:47:54 +08:00
Martin Robinson
44b24de60f Only create scrolling overflow regions when necessary
Only create scroll roots for overflow regions when the overflow region
is actually larger than the container size. This prevents creating
scrolling roots for elements that do not have overflow scroll as a
side-effect of the way their height and width is defined. For example,
tables should never respect overflow:scroll since their height and
width should always be large enough to prevent overflow. This also
decreases the size and complexity of the display list in many other
circumstances.

As part of this change, transformed overflow calculation is moved from
display list construction to layout. This should mean that overflow is
handled more accurately earlier.

Fixes #14574.
2017-01-17 09:47:43 -05:00
Martin Robinson
29876d2703 Rework the way scroll roots are collected
Collect scroll roots during the collect_stacking_context phase instead
of during display list construction. This will be useful in order to
collect containing block scroll roots as well as to give scroll roots
sequential ids in the future. This change also pulls stacking context
children out of the StackingContext struct itself, which should reduce
very slightly the memory used by the finished display list. This also
simplifies the DisplayListBuilder because it no longer has to maintain
a stack of ScrollRootIds and StackingContextIds and can instead just
rely on the program stack.
2017-01-10 13:33:08 +01:00
Bobby Holley
80460cc549 Make Restyle tracking more granular.
The primary idea of this patch is to ditch the rigid enum of Previous/Current
styles, and replace it with a series of indicators for the various types of
work that needs to be performed (expanding snapshots, rematching, recascading,
and damage processing). This loses us a little bit of sanity checking (since
the up-to-date-ness of our style is no longer baked into the type system), but
gives us a lot more flexibility that we'll need going forward (especially when
we separate matching from cascading). We also eliminate get_styling_mode in
favor of a method on the traversal.

This patch does a few other things as ridealongs:
* Temporarily eliminates the handling for transfering ownership of styles to the
  frame. We'll need this again at some point, but for now it's causing too much
  complexity for a half-implemented feature.
* Ditches TRestyleDamage, which is no longer necessary post-crate-merge, and is
  a constant source of compilation failures from either needing to be imported
  or being unnecessarily imported (which varies between gecko and servo).
* Expands Snapshots for the traversal root, which was missing before.
* Fixes up the skip_root stuff to avoid visiting the skipped root.
* Unifies parallel traversal and avoids spawning for a single work item.
* Adds an explicit pre_traverse step do any pre-processing and determine whether
  we need to traverse at all.

MozReview-Commit-ID: IKhLAkAigXE
2016-12-09 14:46:40 -10:00
bors-servo
a0619688a6 Auto merge of #14367 - mrobinson:scroll-fragment-point, r=pcwalton
Reimplement scrolling to fragments

<!-- Please describe your changes on the following line: -->

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<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #13736, #10753 (github issue number if applicable).

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- [x] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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This reimplemntation of the feature uses ScrollRootIds to scroll
particular scrollable areas of the page.

Fixes #13736.
Fixes #10753.

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2016-12-06 14:42:00 -08:00
bors-servo
9a45252a84 Auto merge of #14424 - mbrubeck:flow-column, r=notriddle
Remove unnecessary Flow::column_sizes methods

One of these methods is never called. The other is used only on TableFlow and doesn't need to be implemented for all Flow types.

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2016-11-30 23:36:46 -08:00
Matt Brubeck
be6ee9d1dd Remove unnecessary Flow::column_sizes methods 2016-11-30 09:38:27 -08:00
Martin Robinson
0b56bb2237 Reimplement scrolling to fragments
This reimplemntation of the feature uses ScrollRootIds to scroll
particular scrollable areas of the page.

Fixes #13736.
Fixes #10753.
2016-11-29 22:12:16 +01:00
Simon Sapin
b203ab2419 Rename selector_impl.rs to selector_parser.rs
This makes it consistent with an upcoming update of the selectors crate.
2016-11-20 15:30:37 +01:00
Pu Xingyu
7f721e1f2c layout: Mark flex items properly during construction
Set the flag of the fragment of children in a flex container according
to the direction of the container. The mark is done on the fragment
because flex item enstablish a stacking context when its z-index is
non-zero ,despite its `position' property.
2016-11-09 08:24:12 +08:00
Bobby Holley
a2c7a9d0fb Stop using associated types for the concrete TRestyleDamage implementation.
MozReview-Commit-ID: LfaZFCVlIb1
2016-11-07 11:10:48 -08:00
Shing Lyu
8bea421329 Migrated -Z trace-layout to serde_json 2016-11-07 15:54:07 +08:00
Michael Howell
5f320bd2ca Make FlowRef a newtype
This creates a sharp distinction between `Arc<Flow>`s, which may be
owned by anyone, and `FlowRef`s, which may only be owned by the
traversal code. By checking the reference count, we ensure that a `Flow`
cannot be pointed to by `Arc`s and `FlowRef`s simultaneously.

This is not a complete fix for #6503, though it is a necessary start
(enforcing the no-aliasing rule of `FlowRef::deref_mut` will require far
more work).

Fixes #14014
2016-11-04 13:36:04 -07:00
Martin Robinson
71d285af80 Use a new id type for tracking scrolling areas
This is a step in disassociating scrolling areas from stacking
contexts. Now scroll areas are defined by unique ids, which means that
in the future stacking context will be able to contain more than one.
2016-10-30 21:10:04 +01:00
Patrick Walton
ba005a93b8 layout: Minor style cleanup. 2016-10-26 14:14:16 -07:00
Patrick Walton
a7f64f3d33 layout: Remove the old anonymous table object generation code. 2016-10-26 14:14:06 -07:00
Patrick Walton
b809aae74b layout: Add a new MARGINS_CANNOT_COLLAPSE flow flag. 2016-10-26 14:04:10 -07:00
Martin Robinson
ccb7ab926a Remove concept of Layers from Servo
Layers were a feature of the legacy drawing path. If we re-add them at
some point, it probably makes more sense to make them a product of
display list inspection.

This change also remove a bunch of dead painting code.
2016-10-21 08:38:34 +02:00
Glenn Watson
acfdfd2fa9 Remove old rendering backend.
This removes paint threads, rust-layers dependency, and changes
optional webrender types to be required.

The use_webrender option has been removed, however I've left
the "-w" command line option in place so that wpt
runner can continue to pass that. Once it's removed from there
we can also remove the -w option.

Once this stage is complete, it should be fine to change the
display list building code to generate webrender display
lists directly and avoid the conversion step.
2016-10-18 10:21:27 +10:00
Patrick Walton
7df456e8ac layout: Rewrite clipping to be a two-phase process that takes physical
border box positions and transforms into account.

Clipping region computation now follows a simple process: (1) in the
parent's coordinate system, parents store appropriate clipping regions
into children; (2) each child moves its clipping region to its own
coordinate system if necessary.

Because clipping region computation is now based on stacking-relative
border box positions and the `transform_rect` method, it can handle
`position: relative` offsets and more types of transforms, such as
scaling.

Improves etsy.com.

Closes #13753.
2016-10-15 14:18:48 -07:00
Patrick Walton
773614f84c layout: Rewrite Servo's vertical-align support to match CSS 2.1 §
10.8, and implement `vertical-align: middle` per CSS 2.1 § 10.8.1.

`InlineMetrics` has been split into `InlineMetrics` for fragments and
`LineMetrics` for lines. Both structures' fields have been renamed in
order to more clearly delineate the difference between *space* and
*content*. Vertical positioning of fragments has been reworked to take
margins and borders into account only for replaced content.

This patch fixes the `vertical_align_super_a.html` reftest. Servo now
matches the rendering that Gecko and WebKit produce.

Additionally, this includes a test for the popular inline-block
centering technique described here:
https://s.codepen.io/shshaw/fullpage/gEiDt?#Inline-Block
2016-10-11 12:47:50 -07:00
Patrick Walton
7bf06ed459 layout: Take the position of InlineFlows in account when determining
the baseline offset of the last line box in flow.

This caused incorrect layouts in some cases.
2016-10-11 12:36:19 -07:00
Bobby Holley
5bcc4192bf Stop using Ref::map for selected_style and resolved_style.
Same concept as the previous patch.

MozReview-Commit-ID: RFC8s7qQPM
2016-10-02 19:19:52 -07:00
Bobby Holley
18d552a1e9 Stop using Ref::map for style().
It's not possible to implement a Ref::map equivalent method on AtomicRefCell
while having AtomicRefCell implemented on top of RwArc. We could potentially
reimplement AtomicRefCell to be more like RefCell and add a Ref::map equivalent
method, but I (and pcwalton) think we should try just cloning a few extra
Arcs at these callsites instead.

MozReview-Commit-ID: 6H8vAWguO3z
2016-10-02 19:19:52 -07:00
bors-servo
4ebecc915a Auto merge of #13401 - notriddle:master, r=pcwalton
Implement sequential fallback to float speculation

This shouldn't impact any pages that are already rendering correctly, but it is a very naive implementation of this pass.

---

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #13284 and fix #13223
- [X] There are tests for these changes

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2016-09-29 13:16:24 -05:00
bors-servo
81dfa6a96b Auto merge of #13417 - mrobinson:simplify-stacking-context-collection, r=glennw
Simplify stacking context collection

<!-- Please describe your changes on the following line: -->

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<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
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- [ ] These changes fix #__ (github issue number if applicable).

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- [ ] These changes do not require tests because _____

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Simplify the way that stacking contexts are collected. Instead of
passing the StackingContextId down the tree, pass the parent
StackingContext itself. This will allow future patches to get more
information about the parent stacking context (such as location).

Also remove the return value of collect_stacking_contexts, which was
unused.

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2016-09-29 09:01:33 -05:00
bors-servo
ccfc60161b Auto merge of #13470 - pcwalton:inline-absolute-hypothetical-baseline, r=notriddle
layout: Improve the interaction between baseline-offset-of-last-line-in-flow logic and inline absolute hypothetical boxes.

See commits for details. These changes place the heart icon on Twitter in the right place.

r? @notriddle

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2016-09-29 00:11:33 -05:00
Patrick Walton
3a56cc7f2f layout: When searching for the baseline offset of the last in-flow line
and an inline flow has no applicable lines, continue checking previous
sibling flows.

Improves Twitter by placing the favorite icon in the right place.
2016-09-27 18:45:36 -07:00
Michael Howell
fe2018682b Implement sequential fallback to float speculation
Fixes #13284
Fixes #13223
2016-09-27 15:19:28 -07:00
Martin Robinson
066775915c Simplify stacking context collection
Simplify the way that stacking contexts are collected. Instead of
passing the StackingContextId down the tree, pass the parent
StackingContext itself. This will allow future patches to get more
information about the parent stacking context (such as location).

Also remove the return value of collect_stacking_contexts, which was
unused.
2016-09-27 10:48:44 +02:00
Patrick Walton
65e3db1c0d layout: Add a REPOSITION restyle damage type.
Separating out `REPOSITION` from `REPAINT` allows us to compute
stacking-context-relative positions without rebuilding the display list.
This saves a lot of time when responding to script-to-layout queries.
2016-09-26 14:20:30 -07:00
Patrick Walton
c6b9b315aa layout: Make baseline_offset_of_last_line_box_in_flow() only check
blocks in flow.

Improves python.org.

Closes #12124.
2016-09-19 17:17:08 -07:00
UK992
93a103ba73 Reorder use statements 2016-09-09 04:55:19 +02:00