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fixed crash when setting custom shadow props to null 

Reviewed By: emilsjolander

Differential Revision: D3923634

fbshipit-source-id: 005e316e70fa280960c796375b2e94f9967a089d
This commit is contained in:
Martin Kralik 2016-09-27 03:36:32 -07:00 committed by Facebook Github Bot 8
parent 0a0dd30c6a
commit cfae3e376d
2 changed files with 22 additions and 10 deletions
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28
React/Views/RCTComponentData.m
View File

@ -145,8 +145,14 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
// Check for custom setter
if ([keyPath isEqualToString:@"__custom__"]) {
// Get custom setter
SEL customSetter = NSSelectorFromString([NSString stringWithFormat:@"set_%@:for%@View:withDefaultView:", name, shadowView ? @"Shadow" : @""]);
// Get custom setter. There is no default view in the shadow case, so the selector is different.
NSString *selectorString;
if (!shadowView) {
selectorString = [NSString stringWithFormat:@"set_%@:for%@View:withDefaultView:", name, shadowView ? @"Shadow" : @""];
} else {
selectorString = [NSString stringWithFormat:@"set_%@:forShadowView:", name];
}
SEL customSetter = NSSelectorFromString(selectorString);
propBlock = ^(id<RCTComponent> view, id json) {
RCTComponentData *strongSelf = weakSelf;
@ -154,13 +160,19 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
return;
}
json = RCTNilIfNull(json);
if (!json && !strongSelf->_defaultView) {
// Only create default view if json is null
strongSelf->_defaultView = [strongSelf createViewWithTag:nil];
if (!shadowView) {
if (!json && !strongSelf->_defaultView) {
// Only create default view if json is null
strongSelf->_defaultView = [strongSelf createViewWithTag:nil];
}
((void (*)(id, SEL, id, id, id))objc_msgSend)(
strongSelf.manager, customSetter, json, view, strongSelf->_defaultView
);
} else {
((void (*)(id, SEL, id, id))objc_msgSend)(
strongSelf.manager, customSetter, json, view
);
}
((void (*)(id, SEL, id, id, id))objc_msgSend)(
strongSelf.manager, customSetter, json, view, strongSelf->_defaultView
);
};
} else {

4
React/Views/RCTViewManager.h
View File

@ -126,10 +126,10 @@ RCT_REMAP_VIEW_PROPERTY(name, __custom__, type) \
/**
* This macro can be used when you need to provide custom logic for setting
* shadow view properties. The macro should be followed by a method body, which can
* refer to "json", "view" and "defaultView" to implement the required logic.
* refer to "json" and "view".
*/
#define RCT_CUSTOM_SHADOW_PROPERTY(name, type, viewClass) \
RCT_REMAP_SHADOW_PROPERTY(name, __custom__, type) \
- (void)set_##name:(id)json forShadowView:(viewClass *)view withDefaultView:(viewClass *)defaultView
- (void)set_##name:(id)json forShadowView:(viewClass *)view
@end