This patch gets rid of the configuration settings present in the
`TStylingContext` array that is used within the styling algorithm
for `[style]`, `[style.prop]`, `[class]` and `[class.name]` bindings.
These configurations now all live inside of the `TNodeFlags`.
PR Close#33540
This patch removes the need to lock the style and class context
instances to track when bindings can be added. What happens now is
that the `tNode.firstUpdatePass` is used to track when bindings are
registered on the context instances.
PR Close#33521
This patch ensures that the `[style]` and `[class]` based bindings
are directly applied to an element's style and className attributes.
This patch optimizes the algorithm so that it...
- Doesn't construct an update an instance of `StylingMapArray` for
`[style]` and `[class]` bindings
- Doesn't apply `[style]` and `[class]` based entries using
`classList` and `style` (direct attributes are used instead)
- Doesn't split or iterate over all string-based tokens in a
string value obtained from a `[class]` binding.
This patch speeds up the following cases:
- `<div [class]>` and `<div class="..." [class]>`
- `<div [style]>` and `<div style="..." [style]>`
The overall speec increase is by over 5x.
PR Close#33336
Prior to this fix if a map-based class or style binding wrote
its values onto an elemenent, the internal styling context would
not register the binding if the initial value as a `NO_CHANGE`
value. This situation occurs if a directive takes control of the
`class` or `style` input values and then returns a `NO_CHANGE` value
if the initial value is empty.
This patch ensures that all bindings are always registered with the
`TStylingContext` data-structure even if their initial value is
an instance of `NO_CHANGE`.
PR Close#33236
This patch introduces the `printTable()` and `printSources()`
methods to `DebugStylingContext` which can be used via the
`window.ng.getDebugNode` helpers when debugging an application.
PR Close#33179
Prior to this patch, if a map-class binding is applied directly then
that value will be incorrectly provided a sanitizer even if there is no
sanitization present for an element.
PR Close#33154
This patch enables a styling debug instance (which is apart of the
`debugNode.styles` or `debugNode.classes` data structures) to expose
its context value so that it can be easily debugged.
PR Close#32856
Prior to this fix, whenever a style or class binding is present, the
binding application process would require an instance of `TStylingContext`
to be built regardless of whether or not any binding resolution is needed
(just so that it knows whether or not there are any collisions).
This check is, however, unnecessary because if (and only if) there
are directives present on the element then are collisions possible.
This patch removes the need for style/class bindings to register
themselves on to a `TStylingContext` if there are no directives and
present on an element. This means that all map and prop-based
style/class bindings are applied as soon as bindings are updated on
an element.
PR Close#32919
This patch fixes a bug where the map-based cursor moves too far and
skips intermediate values when the correct combination of single-prop
bindings and map-based bindings are used together.
PR Close#32774
This patch introduces the `printTable()` and `printSources()`
methods to `DebugStylingContext` which can be used via the
`window.ng.getDebugNode` helpers when debugging an application.
PR Close#32753
This patch enables a styling debug instance (which is apart of the
`debugNode.styles` or `debugNode.classes` data structures) to expose
its context value so that it can be easily debugged.
PR Close#32753
In the previous patch () all the existing styling code was turned
off in favor of using the new refactored ivy styling code. This
patch is a follow up patch to that and removes all old, unused
styling code from the render3 directory.
PR Close#31193
This commit is the final patch of the ivy styling algorithm refactor.
This patch swaps functionality from the old styling mechanism to the
new refactored code by changing the instruction code the compiler
generates and by pointing the runtime instruction code to the new
styling algorithm.
PR Close#30742
As part of FW-1265, the `@angular/core` package is made compatible
with the TypeScript `--strict` flag. This already unveiled a few bugs,
so the strictness flag seems to help with increasing the overall code health.
Read more about the strict flag [here](https://www.typescriptlang.org/docs/handbook/compiler-options.html)
PR Close#30993
This patch is one of the final patches to refactor the styling algorithm
to be more efficient, performant and less complex.
This patch enables sanitization support for map-based and prop-based
style bindings.
PR Close#30667
This is the first refactor PR designed to change how styling bindings
(i.e. `[style]` and `[class]`) behave in Ivy. Instead of having a heavy
element-by-element context be generated for each element, this new
refactor aims to use a single context for each `tNode` element that is
examined and iterated over when styling values are to be applied to the
element.
This patch brings this new functionality to prop-based bindings such as
`[style.prop]` and `[class.name]`.
PR Close#30469
In View Engine, we would simply ignore host style bindings on template nodes. In Ivy,
we are throwing a "Cannot read length of undefined" error instead. For backwards
compatibility, we should also ignore these bindings rather than blowing up.
PR Close#30498
This is the final patch to migrate the Angular styling code to have a
smaller instruction set in preparation for the runtime refactor. All
styling-related instructions now work both in template and hostBindings
functions and do not use `element` as a prefix for their names:
BEFORE:
elementStyling()
elementStyleProp()
elementClassProp()
elementStyleMap()
elementClassMap()
elementStylingApply()
AFTER:
styling()
styleProp()
classProp()
styleMap()
classMap()
stylingApply()
PR Close#30318
This patch breaks up the existing `elementStylingMap` into
`elementClassMap` and `elementStyleMap` instructions. It also breaks
apart `hostStlyingMap` into `hostClassMap` and `hostStyleMap`
instructions. This change allows for better tree-shaking and reduces
the complexity of the styling algorithm code for `[style]` and `[class]`
bindings.
PR Close#30293
Because the styling context may be stored in a different location
and be apart of a sub array, reading the styling context each time
a host binding is evaluated is costly. This patch ensures that the
active styling context is cached so that multiple interactions with
styling bindings can easily retrieve the styling context efficiently.
PR Close#29818
Currently in Ivy we pass both the raw and parsed selectors to the projectionDef instruction, because the parsed selectors are used to match most nodes, whereas the raw ones are used to match against nodes with the ngProjectAs attribute. The raw selectors add a fair bit of code that won't be used in most cases, because ngProjectAs is somewhat rare.
These changes rework the compiler not to output the raw selectors in the projectionDef, but to parse the selector in ngProjectAs and to store it on the TAttributes. The logic for matching has also been changed so that it matches the pre-parsed ngProjectAs selector against the list of projection selectors.
PR Close#29578
While investigating styling performance regressions, it was discovered
that a single `fn(...args)` operation was causing a performance hit
because the generated es5 `__spread` operation uses `[].concat` and
reads from the `arguments` values (which are not very efficient). This
patch changes that around to use `fn.apply` instead.
PR Close#29795
In order to optimize performance for styling-related operations in
Angular, debug counters need to be introduced. This patch adds various
counters to ngDevMode which are fired each time a styling-related
binding is updated.
PR Close#29579
The new styling algorithm in angular is designed to evaluate host
bindings stylinh priority in order of directive evaluation order. This,
however, does not work with respect to parent/sub-class directives
because sub-class host bindings are run after the parent host bindings
but still have priority. This patch ensures that the host styling bindings
for parent and sub-class components/directives are executed with respect
to the styling algorithm prioritization.
Jira Issue: FW-1132
PR Close#29602
Angular Ivy interprets inline static style/class attribute values as instructions that
are processed whilst an element gets created. Because these inline style values are
referenced by style/class bindings, their inline style values are applied at a later
stage. Despite them being eventually applied, their values should be applied earlier
before any directives are instantiated so that directive code can rely on any inline
style/class changes.
This patch ensures that all static style/class attribute values are applied (rendered)
on the element before directives are instantiated.
Jira Issue: FW-1133
PR Close#29269
Angular supports having a component extend off of a parent component.
When this happens, all annotation-level data is inherited including styles
and classes. Up until now, Ivy only paid attention to static styling
values on the parent component and not the child component. This patch
ensures that both the parent's component and child component's styling
data is merged and rendered accordingly.
Jira Issue: FW-1081
PR Close#29015
This change helps highlight certain misoptimizations with Closure
compiler. It is also stylistically preferable to consistently use index
access on index sig types.
Roughly, when one sees '.foo' they know it is always checked for typos
in the prop name by the type system (unless 'any'), while "['foo']" is
always not.
Once all angular repos are conforming this will become a tsetse.info
check, enforced by bazel.
PR Close#28937
For efficiency reasons we often put several different data types (`RNode`, `LView`, `LContainer`,
`StylingContext`) in same location in `LView`. This is because we don't want to pre-allocate
space
for it because the storage is sparse. This file contains utilities for dealing with such data
types.
How do we know what is stored at a given location in `LView`.
- `Array.isArray(value) === false` => `RNode` (The normal storage value)
- `Array.isArray(value) === true` => than the `value[0]` represents the wrapped value.
- `typeof value[TYPE] === 'object'` => `LView`
- This happens when we have a component at a given location
- `typeof value[TYPE] === 'number'` => `StylingContext`
- This happens when we have style/class binding at a given location.
- `typeof value[TYPE] === true` => `LContainer`
- This happens when we have `LContainer` binding at a given location.
NOTE: it is assumed that `Array.isArray` and `typeof` operations are very efficient.
PR Close#28947
`LView`, `LContainer`, `StylingContext` are all arrays which wrap either
an `HTMLElement`, `LView`, `LContainer`, `StylingContext`. It is often
necessary to retrieve the correct type of element from the location
which means that we often have to wrap the arrays. Logically it makes
more sense if the thing which we are wrapping is at `0` location. Also
it may be more performant since data is more local which may result in
more L2 cache hits in CPU.
PR Close#28947
Google3 detected circular references here, so splitting up this rather hodge-podge list of functions into slightly better organizational units.
PR Close#28382
Prior to this fix, both the `NgStyle` and `NgClass` directives made use
of `Renderer2` and this dependency raised issues for future versions of
Angular that cannot inject it. This patch ensures that there are two
versions of both directives: one for the VE and another for Ivy.
Jira Issue: FW-882
PR Close#28711
Prior to this fix if a root component was instantiated it create host
bindings, but never render them once update mode ran unless one or more
slot-allocated bindings were issued. Since styling in Ivy does not make
use of LView slots, the host bindings function never ran on the root
component.
This fix ensures that the `hostBindings` function does run for a root
component and also renders the schedlued styling instructions when
executed.
Jira Issue: FW-1062
PR Close#28664
Up until now, `[style]` and `[class]` bindings (the map-based ones) have only
worked as template bindings and have not been supported at all inside of host
bindings. This patch ensures that multiple host binding sources (components and
directives) all properly assign style values and merge them correctly in terms
of priority.
Jira: FW-882
PR Close#28246
This commit adds a devMode-only check which will throw if a user
attempts to bind a property that does not match a directive
input or a known HTML property.
Example:
```
<div [unknownProp]="someValue"></div>
```
The above will throw because "unknownProp" is not a known
property of HTMLDivElement.
This check is similar to the check executed in View Engine during
template parsing, but occurs at runtime instead of compile-time.
Note: This change uncovered an existing bug with host binding
inheritance, so some Material tests had to be turned off. They
will be fixed in an upcoming PR.
PR Close#28537
Fixes Ivy not applying properties that are set in camelCase, because it goes through the `CSSStyleDeclaration` API via `setProperty` and `removeProperty` which requires for [the values to be in dash-case](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration/setProperty).
**Note:** I opted to let the browser normalize the value, rather than convert it to dash-case during compile time, because there are some special cases like browser-prefixed properties where we might not normalize it in-line with the browser.
This PR fixes FW-579.
PR Close#28276
