Summary:
@public
In order to encapsulate property access on `YGStyle`, as a first measure we wrap all fields with accessors.
This will e.g. enable dynamic property storage and instrumentation in the future.
All accessors have a `const` version that allows direct access via `const&`. For mutation, bit fields are wrapped with a custom reference object.
This style allows for the least amount of changes in client code. Property access simply needs appended parens, eg `style.direction` becomes `style.direction`.
Reviewed By: shergin
Differential Revision: D14999096
fbshipit-source-id: fbf29f7ddab520513d4618f5e70094c4f6330b30
Summary:
@public
This allows short methods defined in class declarations to occupy a single line.
The change makes class declarations more readable.
Reviewed By: SidharthGuglani
Differential Revision: D14950012
fbshipit-source-id: 1321949475184181c6cceb86613f730e430763e2
Summary:
@public
Regenerating the “golden master” tests with chrome surfaced different bugs around `align-content`:
- a misunderstanding that values in `align-content` only applied *if there is only one line.* In fact, it applies *every time* a container is set to `flex-wrap: wrap`. Chrome had this wrong, and as such our tests were generated with incorrect parameters.
- empty children growing to the cross axis size of the container, even when `align-content` is different from `stretch`. This was implemented incorrectly in Chrome as well. Here, we fix it with an extra check.
Reviewed By: SidharthGuglani
Differential Revision: D14725402
fbshipit-source-id: a45bebdadb9c694dc0eb7e27cb52b3d247f81c50
Summary:
@public
We use Chrome for generating test cases, which since v67 (or so) for `min-width` and `min-height` has a default value of either `0px` (CSS 2) or `auto` (CSS 3), depending on style properties.
Our setup only allowed for a single default value, and our test cases produce *both.*
This changes the test gen logic to allow for more than one value.
Reviewed By: SidharthGuglani
Differential Revision: D14682387
fbshipit-source-id: e76361f5cc0b88f9c2d74a5f3248c66abd6907a7
Summary:
@public
`setBaseLine` was the only place where we used a capitalised *L.* Fixed here.
Reviewed By: SidharthGuglani
Differential Revision: D14152320
fbshipit-source-id: abf54fe7d6088e03775968baa8421c4bf43d6a6e
Summary:
@public
Context-aware cloning functions are an internal Yoga feature that will be used for Yoga’s JNI code.
It will be possible to specify a context when calculating layout, which will be passed on to cloning functions. This will be a private feature.
Reviewed By: SidharthGuglani
Differential Revision: D14149470
fbshipit-source-id: 1d11106e65f9d872d10f191763da001f8d158a61
Summary:
@public
Limit child cloning to layout calculation. This also allows for mixing shared and owned children.
Rationale:
We do allow for shared children if the caller manages themselves. The single known use case is React Native.
So far, we have cloned children eagerly whenever child lists are mutated, or layout is run. This was to allow for a quick check of the owner of any first child, assuming that either *all* or *no* child of a node are shared.
For Yoga/Java, we want to get rid of global weak JNI refs, and these are also used to invoke clone callbacks. We can achieve that goal by switching to an alternative approach, passing additional data to the layout pass. This additional data has to be passed to any configured cloning callback. Therefore, it is desirable to **only call cloning functions during the layout pass.**
The obvious solution seems to be to not uphold the invariant of the first child determining shared/owned state of all siblings, and allow for a mix of shared and own children.
Reviewed By: shergin
Differential Revision: D14136223
fbshipit-source-id: 34490cfeeb2170c99d6ed1b9bdcbcedb316813af
Summary:
@public
Encapsulates node cloning within `YGConfig`.
This is necessary for allowing for context-aware cloning functions, which will ultimately allow for removal of weak global JNI references.
Reviewed By: shergin
Differential Revision: D14132608
fbshipit-source-id: 0dec114c8e172b1e34a4b7fd146c43f13c151ade
Summary:
@public
Context-aware measure and baseline functions are an internal Yoga feature that will be used for Yoga’s JNI code.
It will be possible to specify a context when calculating layout, which will be passed on to baseline and measure functions. This will be a private feature.
Reviewed By: SidharthGuglani
Differential Revision: D14100509
fbshipit-source-id: acf4a030549b2e38d5ce0cd5dbe837864e5ffd81
Summary:
@public
Stricter encapsulation of baseline and measure callbacks withing `YGNode`.
Instead of invoking these callbacks directly (`node->getBaseline()(...)`), they are invoked via methods on `YGNode` (`node->baseline(...)`).
This change will allow us to add the concept of a *Layout Context,* where measure and baseline functions will be able to receive an additional `void *` argument if configured accordingly. This API will be used internally for Yoga’s JNI bindings, to avoid storing a weak JNI reference for each node, and avoid reference table overflows.
Changed API:
- `YGNodeGetMeasureFunc()` -> `YGNodeHasMeasureFunc()`
- `YGNodeGetBaselineFunc()` -> `YGNodeHasBaselineFunc()`
- `YGNode::getMeasure()` -> `YGNode::hasMeasureFunc()` + `YGNode::measure()`
- `YGNpde::getBaseline()` -> `YGNode::hasBaselineFunc()` + `YGNode::baseline()`
Reviewed By: SidharthGuglani
Differential Revision: D14099550
fbshipit-source-id: 2653ab36acc252a9747986bc88d21dac22d8c91b
Summary:
@public
Adds `_pt` and `_percent` user defined literals to create `YGValue` instances.
This allows to create `YGValue`s in the following form:
```
use namespace facebook::yoga::literals;
auto a = 123_pt; // == YGValue{123.0f, YGUnitPoint}
auto b = -12.5_percent; // == YGValue{-12.5f, YGUnitPercent}
```
Reviewed By: SidharthGuglani
Differential Revision: D13942100
fbshipit-source-id: ce1e2f9431c3e2a99c6e11896a712539cc535e0d
Summary:
@public
Extends `InstrumentationTest` with the ability to record more than one marker.
Instead of overwriting any previously recorder marker, we collect them in a `std::deque`.
`std::deque` was chosen, because it keeps pointers to elements stable.
Reviewed By: SidharthGuglani
Differential Revision: D13880777
fbshipit-source-id: f6f6606ac8625bdd90c06459fdb967c3478265e7
Summary:
@public
Adds the maximum number of measure cache entries in use to the metrics for `YGMarkerLayout`
Reviewed By: SidharthGuglani
Differential Revision: D13844731
fbshipit-source-id: fa66dbf1b7a1799494f72ecc17dfaef04d0b56e4
Summary:
@public
Evolves setup and helpers in `InstrumentationTest` to avoid repetition across test cases, and allow for more readable test by hiding default values where they don’t matter.
Reviewed By: SidharthGuglani
Differential Revision: D13839521
fbshipit-source-id: 7f7ad49fec84e0bbb09ad746dd8c28bd34de25b2
Summary:
@public
Adds marker meta data to `YGMarkerLayout`: the number of measures, and the numbers of layouts for all nodes in the tree.
Reviewed By: SidharthGuglani
Differential Revision: D13838975
fbshipit-source-id: d575c26a3d5a4f0b66834eb6bedecadc3f3ca265
Summary:
@public
Adds a class for triggering markers.
This calls `startMarker()` on construction, and `endMarker()` on destruction, thus being usable like a "scope guard": the object is instantiated, and automatically destroyed when going out of scope.
Reviewed By: SidharthGuglani
Differential Revision: D13817589
fbshipit-source-id: fd88884af970c1c0933d9ca6843f3f8f5d28b9e6
Summary:
After this diff D13403925 that got rid of `-ffast-math` we started to have a very odd behavior on Yoga when using release builds.
After digging a while we found that certain set of conditions on O2 and O3 optimization levels was causing Origami to set some `INFINITE` values on Yoga.
We found the root of the problem and fix it on Origami side. But I'm wondering if guarding agains `INFINITE` on Yoga side would be good too. Since now Yoga it's not using `-ffast-math` anymore, and I think infinite is not a a valid value anywhere on Yoga side, it seems to support the reason to guard against it.
I'm happy to abandon this diff if you guys think this is not a good solution.
Reviewed By: davidaurelio
Differential Revision: D13679319
fbshipit-source-id: 061448fea9d1a8496362ff07dc46b546e7f1ffa3
Summary:
@public
`CompactValue` represents a `YGValue` in 32bits instead of 64. This comes at the cost of a range limitation, as one exponent bit is borrowed for the unit.
*Undefined* and *Auto* have no magnitude, and are represented as *NaN* values.
The data structure is meant to be used as a field type on `YGStyle` to save memory.
This is header-only for efficient inlining.
Reviewed By: jackerghan, aCorrado
Differential Revision: D13187211
fbshipit-source-id: 16e3ffad592e38e2493e4f7c8b952d372e449846
Summary:
@public
Replace `YGFloatOptional::getValue()` with `YGFloatOptional::unwrap()`.
`YGFloatOptional::getValue()` has the unfortunate property of calling `std::exit` if the wrapped value is undefined.
Here, we eliminate the method, and just call `.unwrap()` everywhere.
Reviewed By: shergin
Differential Revision: D13439608
fbshipit-source-id: 5ae82b170537d0a10c301412567a7a66fd50bab4
Summary:
Replaces `YGUnwrapFloatOptional` with `YGFloatOptional::unwrap`.
This leads to more idiomatic C++, and to less function call nesting, thus increasing readability.
Reviewed By: SidharthGuglani
Differential Revision: D13439604
fbshipit-source-id: 33b43c08d725c253c359959e7cbbd83fd6bd9ba4
Summary:
@public
After removing `-ffast-math`, `NaN` can again be used to represent `undefined`. That allows us to remove the additional flag from `YGFloatOptional`, and reduce memory usage.
Reviewed By: SidharthGuglani
Differential Revision: D13439611
fbshipit-source-id: 93e90f72f0415edb228b4e7d145e1fae35cc6b43
Summary:
I've noticed that when a child's size is determined by `align-items: stretch` in combination with `aspect-ratio` its size is wrongly calculated to account for margin in the main axis when there is more than enough space.
See playground: https://goo.gl/tgW6cD
I've yet to figure out exactly how to solve this but i've started by writing a failing test when can be seen in the first commit here.
I assumed I had found the bug here https://github.com/facebook/yoga/blob/master/yoga/Yoga.cpp#L1838 where margin is being subtracted from the desired width even though the measure mode tells it to measure to exactly that size. However, if we don't remove this margin from the available width then 15 tests fail (including the one I just added) not quite figured out why yet. I'm also a bit confused at to why this would only happen for nodes with `aspect-ratio` and not for nodes where an explicit height and width is set.
Pull Request resolved: https://github.com/facebook/yoga/pull/834
Reviewed By: astreet
Differential Revision: D13223579
Pulled By: davidaurelio
fbshipit-source-id: 6970e6072e79f3bb6f9097355ab6e441441bfd88
Summary:
@public
`YGFloatOptional::getValue()` has the unfortunate property of calling `std::exit` if the wrapped value is undefined.
That forces `x.isUndefined() ? fallback : x.getValue()` as access pattern.
Here, we replace that by introducing `YGFloatOptional::orElse(float)` which encapsulates that pattern. Other additions are `orElseGet([] { … })` and some extra operators.
Reviewed By: SidharthGuglani
Differential Revision: D13209152
fbshipit-source-id: 4e5deceaaaaf8eaed44846a8c152cc8b235e815c
Summary:
@public
After removing `-ffast-math`, `NaN` can again be used to represent `undefined`. That allows us to remove the additional flag from `YGFloatOptional`, and reduce memory usage.
Reviewed By: SidharthGuglani
Differential Revision: D13209157
fbshipit-source-id: 21b83c837a78f924a4ec23a9236ca2440b3c8606
Summary:
@public
Restores the yearless format of the MIT license.
Reviewed By: SidharthGuglani
Differential Revision: D13082510
fbshipit-source-id: f5a849b06652cedf68547d4a7963398b2627915f
Summary:
@public
Currently only parent can tell the layout to align its children based on baseline. But if one of the children is a column or row then basealign does not work as expected.
We have added an api setReferenceBaseline which when set to true would mean that it's baseline would be considered as the reference baseline for parent amongst its siblings. If there are more than one siblings with referenceBaseline set, the first one would be considered.
Reviewed By: davidaurelio
Differential Revision: D12883323
fbshipit-source-id: 19beccfc47d98bb38f81f5b66ba764e83680f821
Summary:
@public
`flex_shrink_flex_grow_row` and `flex_shrink_flex_grow_child_flex_shrink_other_child` tests were present in YGFlexTest.cpp.
When running ruby script to generate tests, these were getting removed since they were not added in YGFlexTest.html using which tests are generated.
This diff adds tests in YGFlexTest.html and contains corresponding generated test cases for different languages.
Reviewed By: priteshrnandgaonkar
Differential Revision: D12838701
fbshipit-source-id: 5e92716d94fa392230db2c0ec3b8c131a089c55a
Summary:
@public
gentest.rb script generates tests in different languages cpp, java, csharp, js from html files.
Some tests were missing from csharp, java and js test files. This diff adds those in all the test files
Reviewed By: priteshrnandgaonkar
Differential Revision: D10853971
fbshipit-source-id: 11d7cee5889dd1f5a7440f6802fca78cea17aa4d
Summary:
Fixes#815
Imagine a node with this style: `{ paddingHorizontal: 10, paddingStart: 0 }`.
After running layout on this node, we expect its computed `paddingStart` to be `0`. However, it is actually `10`.
Consider the expression `paddingEdgeStart.getValue() > 0.0f` in [`getLeadingPadding`](328ec7dc4d/yoga/YGNode.cpp (L461)). Why is `0` handled like a negative number rather than a positive number? I suspect this should be `>=` so `0` is handled like the positive numbers (this is how `getTrailingPadding` works).
It looks like 3a82d2b1a8 (diff-07b4949bf42749fde386e769ff08a124) changed the operator from `>=` to `>` in `getLeadingPadding`. I suspect it was a mistake. `getTrailingPadding` still uses `>=`.
I manually verified this using the code in #815 and added some unit tests to catch this bug and other similar issues.
Adam Comella
Microsoft Corp.
Pull Request resolved: https://github.com/facebook/yoga/pull/816
Reviewed By: priteshrnandgaonkar
Differential Revision: D10282617
Pulled By: shergin
fbshipit-source-id: 2ab2874ae39d9454308a020a960ace85573fe777
Summary:
`YGRoundValueToPixelGrid` currently rounds negative numbers incorrectly. For example:
```
YGRoundValueToPixelGrid(-2.2, 1.0, /* ceil */ false, /* floor */ true) = -2.0
```
However, that operation is supposed to take the floor of the number so the result should acutally be `-3.0`.
There's a detailed comment in `YGRoundValueToPixelGrid` about the fix and why it works.
A symptom that manifested because of this bug is that text nodes could get smaller and smaller on each layout pass. For details see https://github.com/facebook/yoga/issues/824.
Fixes#824
Adam Comella
Microsoft Corp.
Pull Request resolved: https://github.com/facebook/yoga/pull/825
Reviewed By: priteshrnandgaonkar
Differential Revision: D10282064
Pulled By: shergin
fbshipit-source-id: 16ca966e6cb0cfc88b1dbf4ba31e7b1dbe1f2049
Summary: This change drops the year from the copyright headers and the LICENSE file.
Reviewed By: yungsters
Differential Revision: D9727774
fbshipit-source-id: df4fc1e4390733fe774b1a160dd41b4a3d83302a
Summary: Exposes a bool in the config which will help log the yoga hierarchy. Also added a test case
Reviewed By: IanChilds
Differential Revision: D9560577
fbshipit-source-id: ef4998107ed51ea374853bab7cbe09e3232caa0c
Summary:
This diff fixes the height calculation logic for the nodes with baseline. Before height calculation for baseline was done at wrong place.
The task was created due to the regression caused by D9219678.
Reviewed By: IanChilds
Differential Revision: D9421551
fbshipit-source-id: 3fbb738314130b346c4186ec45d00c9ea63bc9f4
Summary:
This diff updates the logic which reassigns `remainingFreeSpace` when the node's calculated dimension falls below min width of the node.
So we will have to update the `remainingFreeSpace` as there is more available space since the calculated nodes width is less than the min width.
I have also added comments at relevant places in the code so that it is clearer.
This diff solves the issue raised in litho support grp. The details can be found here T32199608. This diff also makes sure that it doesn't break fblite, as the earlier version broke it, details of which can be found here T32881750.
Reviewed By: IanChilds
Differential Revision: D9359026
fbshipit-source-id: 4168e385e962c168a9de9370220c75f14a6726a7
Summary:
Prior to this diff, if parents height was not set then the height of parent was deduced as max of childrens height(considering line ht, padding, margin etc. ), but it didn't consider the baseline scenario where the previous logic will fail as then the parents height will be determined by the space taken by children above and below the reference baseline. I added a test case for the same.
Look at the diff D9088051 which shows the screenshot of the bug.
It is solved to https://pxl.cl/gvVk
Reviewed By: dsyang
Differential Revision: D9219678
fbshipit-source-id: f4a0b9f1452c33e78bd8c6cf39f6fcf538a04074
Summary:
Removed the faulty calculation of `remainingFreeSpace` from the code. `remainingFreeSpace` already had the correct value that special condition was not required.
Also added a test case for this issue
Reviewed By: IanChilds
Differential Revision: D9286928
fbshipit-source-id: 915269602cda2cc4515e6eab8184b2ea98d3e6d4
Summary:
Fixes the improper `singleFlexChild` optimization. In the case when all the childs have `flex-grow:0 flex-grow:0` except one child with `flex-grow:1 flex-shrink:1`, then one can simply measure all the non-flexing children and then give the flexing child all the remaining space.
Also added a test case which reproduced the bug
Reviewed By: IanChilds
Differential Revision: D8782684
fbshipit-source-id: ffd4d35b6122f82111b987540efb23bd2a8da5a2
Summary:
In the persistent version of Yoga, a YogaNode can be shared between two YogaTrees, that means that a YogaNode could have more than one Parent at one point in time. That's why the concept of Parent of a YogaNode is not a 1-1 relationship anymore.
This diff changes the semantic of Parent of a YogaNode to Owner of a Yoga Node. CC sebmarkbage and priteshrnandgaonkar for more context.
Technically this diff renames the field YogaNode.parent to YogaNode.owner (and every internal field, Getter and Setter that is related to parent)
Note that as part of this diff I also modified the CSSLayoutDEPRECATED version of Yoga in order to keep compatibility with the C++ implementation.
Reviewed By: priteshrnandgaonkar
Differential Revision: D7352778
fbshipit-source-id: dcf1af5e72bfc3063b5c4bda197d7952a9194768
Summary:
We had functions for inserting/removing a specific child, but not for simply replacing the child set with another list.
`YGNodeSetChildren()` will unhook child nodes from the parent that don't appear in the new set. We set the disconnected child node layouts to `YGLayout()` b/c that's what the rest of the code does.
`YGTraversePreOrder()` walks the tree and calls a labmda for each node. We could very easily add a post-order traversal and the ability to stop traversal if we ever want, but for now this is an MVP.
Reviewed By: Woody17
Differential Revision: D7360203
fbshipit-source-id: 32df8e1213ead03bc0a026ec4bf453bc799bb9ce
