proxy-based Twister client written with react-js
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/**
* react-mixin-safe-state-change
* React mixin which sets or replaces state only when it is safe to do so.
*
* Copyright (c) 2015 Rick Beerendonk,
* https://github.com/rickbeerendonk/react-mixin-safe-state-change
*
* The MIT License (MIT)
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
function isValidLifeCycleForReplaceState(instance) {
// See function validateLifeCycleOnReplaceState(instance) in
// ReactCompositeComponent.js
var result = true;
//result &= ReactCurrentOwner.current == null;
result &= __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined' || __REACT_DEVTOOLS_GLOBAL_HOOK__._reactRuntime.CurrentOwner.current == null;
result &= instance.isMounted();
return result;
}
var safeStateChangeMixin = {
/**
* Calls setState with the provided parameters if it is safe to do so.
*
* Safe means it will try to do the same checks as setState does
* without throwing an exception.
* See function validateLifeCycleOnReplaceState(instance) in
* ReactCompositeComponent.js
*
* @param {object} partialState Next partial state to be merged with state.
* @param {?function} callback Called after state is updated.
* @return {boolean} Whether or not setState is called.
* @final
* @protected
*/
setStateSafe: function (partialState, callback) {
if (isValidLifeCycleForReplaceState(this)) {
this.setState(partialState, callback);
return true;
}
return false;
},
/**
* Calls replaceState with the provided parameters if it safe to do so.
*
* Safe means it will try to do the same checks as replaceState does
* without throwing an exception.
* See function validateLifeCycleOnReplaceState(instance) in
* ReactCompositeComponent.js
*
* @param {object} completeState Next state.
* @param {?function} callback Called after state is updated.
* @return {boolean} Whether or not setState is called.
* @final
* @protected
*/
replaceStateSafe: function(completeState, callback) {
if (isValidLifeCycleForReplaceState(this)) {
this.replaceState(completeState, callback);
return true;
}
return false;
}
};
module.exports = safeStateChangeMixin;