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Fix bug #5604 - Unrecognised signal for touchable no longer on the screen

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Summary:Fixes bug https://github.com/facebook/react-native/issues/5604 ("Redscreen error when TouchRelease triggered on a component no longer in the tree")

( maybe not ideally )

This issue is triggered by the following:

A Touch event on a component ( Keep Pressing )
A state/props update removes the component from the tree and render is performed
A Touch Release event. ( When you release the press on the component no longer there )

This fix adds an early return to the signal handling code if a RESPONDER_RELEASE signal happens when the responder has disappeared
Closes https://github.com/facebook/react-native/pull/5637

Differential Revision: D3053729

Pulled By: sahrens

fb-gh-sync-id: 21a2a303d8921654607eaab824ef28fc16df9500
shipit-source-id: 21a2a303d8921654607eaab824ef28fc16df9500
This commit is contained in:
Eaden 2016-03-15 12:16:52 -07:00 committed by Facebook Github Bot 0
parent 0a35529d53
commit d63762194d
1 changed files with 6 additions and 2 deletions
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8
Libraries/Components/Touchable/Touchable.js
View File

@ -599,18 +599,22 @@ var TouchableMixin = {
* @sideeffects
*/
_receiveSignal: function(signal, e) {
var responderID = this.state.touchable.responderID;
var curState = this.state.touchable.touchState;
var nextState = Transitions[curState] && Transitions[curState][signal];
if (!responderID && signal === Signals.RESPONDER_RELEASE) {
return;
}
if (!nextState) {
throw new Error(
'Unrecognized signal `' + signal + '` or state `' + curState +
'` for Touchable responder `' + this.state.touchable.responderID + '`'
'` for Touchable responder `' + responderID + '`'
);
}
if (nextState === States.ERROR) {
throw new Error(
'Touchable cannot transition from `' + curState + '` to `' + signal +
'` for responder `' + this.state.touchable.responderID + '`'
'` for responder `' + responderID + '`'
);
}
if (curState !== nextState) {