Summary:
Currently, the system for mapping JS event handlers to blocks is quite clean on the JS side, but is clunky on the native side. The event property is passed as a boolean, which can then be checked by the native side, and if true, the native side is supposed to send an event via the event dispatcher.
This diff adds the facility to declare the property as a block instead. This means that the event side can simply call the block, and it will automatically send the event. Because the blocks for bubbling and direct events are named differently, we can also use this to generate the event registration data and get rid of the arrays of event names.
The name of the event is inferred from the property name, which means that the property for an event called "load" must be called `onLoad` or the mapping won't work. This can be optionally remapped to a different property name on the view itself if necessary, e.g.
RCT_REMAP_VIEW_PROPERTY(onLoad, loadEventBlock, RCTDirectEventBlock)
If you don't want to use this mechanism then for now it is still possible to declare the property as a BOOL instead and use the old mechanism (this approach is now deprecated however, and may eventually be removed altogether).
Summary:
`view.screen` can be nil if the view has not yet been added to the view hierarchy (e.g. new view), so we should use `[UIScreen mainScreen]` instead.
In the future, if we need to support multiple screens, one possible fix is to set the rasterization scale in didMoveToWindow/Superview. For now we have just one screen, though.
Closes https://github.com/facebook/react-native/pull/2334
Github Author: James Ide <ide@jameside.com>
Summary:
This diff removes calls to `-updateClippedSubviews` by only re-clipping when the scroll view moves by a certain number of pixels.
leeway = 50pt => 46.9% of calls removed
leeway = 10pt => 13.2% " " "
Summary:
Our events all follow a common pattern, so there's no good reason why the configuration should be so verbose. This diff eliminates that redundancy, and gives us the freedom to simplify the underlying mechanism in future without further churning the call sites.
Summary:
Moved the view creation & property binding logic out of RCTUIManager into a separate RCTComponentData class - this follows the pattern used with the bridge.
I've also updated the property binding to use pre-allocated blocks for setting the values, which is more efficient than the previous system that re-contructed the selectors each time it was called. This should improve view update performance significantly.
Summary:
The bridge implementation on React Android does not currently support boxed numeric/boolean types (the equivalent of NSNumber arguments on iOS), nor does Java support Objective-C's nil messaging system that transparently casts nil to zero, false, etc for primitive types.
To avoid platform incompatibilities, we now treat all primitive arguments as non-nullable rather than silently converting NSNull -> nil -> 0/false.
We also now enforce that NSNumber * objects must be explicitly marked as `nonnull` (this restriction may be lifted in future if/when Android supports boxed numbers).
Other object types are still assumed to be nullable unless specifically annotated with `nonnull`.
Summary:
By default, the edges of rotated layers on iOS have jagged edges because they are not antialiased. Setting `allowsEdgeAntialiasing` makes them look a lot nicer by smoothing out the jaggies. This is particularly important for UIs like Tinder cards, for example.
Closes https://github.com/facebook/react-native/pull/1999
Github Author: James Ide <ide@jameside.com>
Summary:
To be on par with NavigatorIOS, I added the translucent property to TabBarIOS.
Usage:
```
<TabBarIOS
translucent={false} // default is true
/>
```
Closes https://github.com/facebook/react-native/pull/1937
Github Author: Jean Regisser <jean.regisser@gmail.com>
Summary:
RCTCache had really bad insertion performance when the cache was full due to having to LRU-sort the entries. This was making color
animations very slow.
I've fixed this in two ways:
1) by removing the sort and doing a linear search to remove old entries, which changes insertion perf to O(n) in the worst case instead of O(n log n) or even (n2).
2) by reducing the size of the color cache to 128 from 1024, which should be fine for normal use, without penalising animation performance.
Separately, border colors were not being retained, which caused crashes when the color cache was cleared. I've fixed that by retaining the border colors inside RCTView.
Summary:
Android WebView now supports the prop "injectedJavaScript", too.
It's time to rename "injectedJavascriptIOS" to "injectedJavaScript" for API
consistency between IOS and Android.
Summary: At the moment the `ListView.js` `_childFrames` variable is only updated on scroll. As a consequence, `onChangeVisibleRows` won't get triggered for the initial render, nor any future render not trigered by scroll events. To fix this we need to make sure native and JS have the child frames in sync.
Summary:
Remove layout-only views. Works by checking properties against a list of known properties that only affect layout. The `RCTShadowView` hierarchy still has a 1:1 correlation with the JS nodes.
This works by adjusting the tags and indices in `manageChildren`. For example, if JS told us to insert tag 1 at index 0 and tag 1 is layout-only with children whose tags are 2 and 3, we adjust it so we insert tags 2 and 3 at indices 0 and 1. This keeps changes out of `RCTView` and `RCTScrollView`. In order to simplify this logic, view moves are now processed as view removals followed by additions. A move from index 0 to 1 is recorded as a removal of view at indices 0 and 1 and an insertion of tags 1 and 2 at indices 0 and 1. Of course, the remaining indices have to be offset to take account for this.
The `collapsible` attribute is a bit of a hack to force `RCTScrollView` to always have one child. This was easier than rethinking out the logic there, but we could change this later.
Summary:
The `ScrollView` sends important `updatedChildFrames` data to the `ListView` to be able to implement `onChangeVisibleRows` method. Coalescing operates very strongly on older devices like the iPhone 4s where this data is then lost.
Fixes#1782.
`ListView` has a method called `onChangeVisibleRows` that is called whenever the rows visible on screen change. This method is critical to be able to implement deletion/creation of views and hence be conservative in memory usage. I have an infinite scrolling view which uses this method to only render the full rows for what is visible on screen and put placeholders for everything else.
In the `RCTEventDispatcher`, we [coalesce events](522fd33d6f/React/Base/RCTEventDispatcher.m (L135-L152)) that are meant to be sent across the bridge. They are [dequeued](522fd33d6f/React/Base/RCTEventDispatcher.m (L180-L188)) on each
Closes https://github.com/facebook/react-native/pull/1783
Github Author: Param Aggarwal <paramaggarwal@gmail.com>
Summary:
@public
The API and implementation of `shouldInjectAJAXHandler` is very opinionated, and it does not solve many of the use cases that we'd like to address.
Since `shouldInjectAJAXHandler` is basically juts injecting JS to the web page, we should let developer inject whatever JS that address different issues that they want to fix.
Test Plan:
Test this snippet at <Playground />
```
<WebView
url="http://www.facebook.com"
injectedJavascriptIOS="document.body.style.border='solid 10px red'"
/>
```
rxb
Aaron Chiu
Pieter De Baets
Nick Lockwood
Alexey Lang
Matt Mahoney
James Ide
Alexsander Akers
Zack Gomez
Tj
Brent Vatne
Kevin Gozali
Tadeu Zagallo
Bill Fisher
Spencer Ahrens
Mr Speaker
chirag04
Jean Regisser
Natansh Verma
Hedger Wang
Martín Bigio
KJlmfe
Param Aggarwal
