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Add UIManager.measureInWindow to get window coordinates

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Summary: When embedding in a hybrid app, we sometimes present new modal views or windows that have a different frame from the original root view. This API allows us to get coordinates in the application's window frame, which should be valid in any fullscreen view.

Reviewed By: majak

Differential Revision: D2939827

fb-gh-sync-id: 06b93cc2cb3519a25819c6efa445c779314dd673
shipit-source-id: 06b93cc2cb3519a25819c6efa445c779314dd673
This commit is contained in:
Pieter De Baets
2016-03-01 06:50:33 -08:00
committed by Facebook Github Bot 4
parent d94a56747d
commit f67fa82008
2 changed files with 52 additions and 0 deletions
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23
React/Modules/RCTUIManager.m
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@@ -1076,6 +1076,29 @@ RCT_EXPORT_METHOD(measure:(nonnull NSNumber *)reactTag
}];
}
RCT_EXPORT_METHOD(measureInWindow:(nonnull NSNumber *)reactTag
callback:(RCTResponseSenderBlock)callback)
{
[self addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
UIView *view = viewRegistry[reactTag];
if (!view) {
// this view was probably collapsed out
RCTLogWarn(@"measure cannot find view with tag #%@", reactTag);
callback(@[]);
return;
}
// Return frame coordinates in window
CGRect windowFrame = [view.window convertRect:view.frame fromView:view.superview];
callback(@[
@(windowFrame.origin.x),
@(windowFrame.origin.y),
@(windowFrame.size.width),
@(windowFrame.size.height),
]);
}];
}
static void RCTMeasureLayout(RCTShadowView *view,
RCTShadowView *ancestor,
RCTResponseSenderBlock callback)