Summary:
This adds new development feature to React Native that provides information
about selected element (see the demo in Test Plan).
This is how it works:
App's root component is rendered to a container that also has a hidden layer called
`<InspectorOverlay/>`. When activated, it shows full screen view and captures all
touches. On every touch we ask UIManager to find a view for given {x,y} coordinates.
Then, we use React's internals to find corresponding React component. `setRootInstance`
is used to remember the top level component to start search from, lmk if you have a
better idea how to do this. Given a component, we can climb up its owners tree
to provice more context on how/where the component is used.
In future we could use the `hierarchy` array to inspect and print their props/state.
Known bugs and limitations:
* InspectorOverlay sometimes receives touches with incorrect coordinates (wtf)
* Not integrated with React Chrome Devtools (maybe in followup diffs)
* Doesn't work with popovers (maybe put the element inspector into an `<Overlay/>`?)
@public
Test Plan:
https://www.facebook.com/pxlcld/mn5k
Works nicely with scrollviews
Summary:
Closes https://github.com/facebook/react-native/pull/1260
Github Author: Luke <kejinlu@gmail.com>
Test Plan: Created `class Foo extends React.Component` and made sure error messages were good.
Summary:
`mountSafeCallback` simply wraps a callback in an `isMounted()` check to prevent crashes when old callbacks are called on unmounted components.
@public
Test Plan:
Added logging and made sure callbacks were getting called through
`mountSafeCallback` and that things worked (e.g. photo viewer rotation etc).
Summary:
Simply add an `onLayout` callback to a native view component, and the callback
will be invoked with the current layout information when the view is mounted and
whenever the layout changes.
The only limitation is that scroll position and other stuff the layout system
isn't aware of is not taken into account. This is because onLayout events
wouldn't be triggered for these changes and if they are desired they should be
tracked separately (e.g. with `onScroll`) and combined.
Also fixes some bugs with LayoutAnimation callbacks.
@public
Test Plan:
- Run new LayoutEventsExample in UIExplorer and see it work correctly.
- New integration test passes internally (IntegrationTest project seems busted).
- New jest test case passes.
{F22318433}
```
2015-05-06 15:45:05.848 [info][tid:com.facebook.React.JavaScript] "Running application "UIExplorerApp" with appParams: {"rootTag":1,"initialProps":{}}. __DEV__ === true, development-level warning are ON, performance optimizations are OFF"
2015-05-06 15:45:05.881 [info][tid:com.facebook.React.JavaScript] "received text layout event
", {"target":27,"layout":{"y":123,"x":12.5,"width":140.5,"height":18}}
2015-05-06 15:45:05.882 [info][tid:com.facebook.React.JavaScript] "received image layout event
", {"target":23,"layout":{"y":12.5,"x":122,"width":50,"height":50}}
2015-05-06 15:45:05.883 [info][tid:com.facebook.React.JavaScript] "received view layout event
", {"target":22,"layout":{"y":70.5,"x":20,"width":294,"height":204}}
2015-05-06 15:45:05.897 [info][tid:com.facebook.React.JavaScript] "received text layout event
", {"target":27,"layout":{"y":206.5,"x":12.5,"width":140.5,"height":18}}
2015-05-06 15:45:05.897 [info][tid:com.facebook.React.JavaScript] "received view layout event
", {"target":22,"layout":{"y":70.5,"x":20,"width":294,"height":287.5}}
2015-05-06 15:45:09.847 [info][tid:com.facebook.React.JavaScript] "layout animation done."
2015-05-06 15:45:09.847 [info][tid:com.facebook.React.JavaScript] "received image layout event
", {"target":23,"layout":{"y":12.5,"x":82,"width":50,"height":50}}
2015-05-06 15:45:09.848 [info][tid:com.facebook.React.JavaScript] "received view layout event
", {"target":22,"layout":{"y":110.5,"x":60,"width":214,"height":287.5}}
2015-05-06 15:45:09.862 [info][tid:com.facebook.React.JavaScript] "received text layout event
", {"target":27,"layout":{"y":206.5,"x":12.5,"width":120,"height":68}}
2015-05-06 15:45:09.863 [info][tid:com.facebook.React.JavaScript] "received image layout event
", {"target":23,"layout":{"y":12.5,"x":55,"width":50,"height":50}}
2015-05-06 15:45:09.863 [info][tid:com.facebook.React.JavaScript] "received view layout event
", {"target":22,"layout":{"y":128,"x":60,"width":160,"height":337.5}}
```
Summary:
Requiring ExceptionsManager in renderApplication (added in D2023119) led to a transitive require of ExecutionEnvironment, which has to run after InitializeJavaScriptAppEngine.
InitializeJavaScriptAppEngine is the right place for this sort of logic because we control the order that things are loaded, so move the console.error hook initialization there.
@public
Test Plan: Loaded shell app in simulator with Chrome debugging with no errors.
Summary:
Simply exposes this public API from ReactIOS in the same manner as web React.
Closes https://github.com/facebook/react-native/pull/104
Github Author: James Ide <ide@jameside.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Spencer Ahrens
Alex Kotliarskyi
Luke
Ben Alpert
Krzysztof Magiera
Eric Vicenti
Nick Lockwood
Bill Fisher
Andy Street
Martin Konicek
Marshall Roch
Christopher Chedeau
Andrew Rasmussen
Christoph Pojer
Philipp von Weitershausen
James Ide