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How to get reference to Component from inside an event method

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1

I have a JavaScript helper method which handles a message sent from a child iframe

handleMessage: function (event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

The helper method is set during OnInit:

onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage));
,

Once a message arrives in handleMessage I need a reference to cmp or component but I do not have it.

Question

1. How can I access cmp or component from inside the handleMessage helper method?

javascript helper component

share|improve this question

edited 6 hours ago

Robs

asked 7 hours ago

RobsRobs

2,845743

add a comment | 

1

I have a JavaScript helper method which handles a message sent from a child iframe

handleMessage: function (event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

The helper method is set during OnInit:

onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage));
,

Once a message arrives in handleMessage I need a reference to cmp or component but I do not have it.

Question

1. How can I access cmp or component from inside the handleMessage helper method?

javascript helper component

share|improve this question

edited 6 hours ago

Robs

asked 7 hours ago

RobsRobs

2,845743

add a comment | 

I have a JavaScript helper method which handles a message sent from a child iframe

handleMessage: function (event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

The helper method is set during OnInit:

onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage));
,

Once a message arrives in handleMessage I need a reference to cmp or component but I do not have it.

Question

1. How can I access cmp or component from inside the handleMessage helper method?

javascript helper component

share|improve this question

edited 6 hours ago

Robs

asked 7 hours ago

RobsRobs

2,845743

handleMessage: function (event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage));
,

share|improve this question

edited 6 hours ago

Robs

asked 7 hours ago

RobsRobs

2,845743

share|improve this question

edited 6 hours ago

Robs

asked 7 hours ago

RobsRobs

2,845743

asked 7 hours ago

RobsRobs

2,845743

asked 7 hours ago

RobsRobs

2,845743

1 Answer
1

active

oldest

votes

2

You can bind it to the function call. You'd want to make the following changes:

// Helper function
handleMessage: function (cmp, event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

// Main code
onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage.bind(helper, cmp)));
,

share|improve this answer

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

add a comment | 

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2

You can bind it to the function call. You'd want to make the following changes:

// Helper function
handleMessage: function (cmp, event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

// Main code
onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage.bind(helper, cmp)));
,

share|improve this answer

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

add a comment | 

2

You can bind it to the function call. You'd want to make the following changes:

// Helper function
handleMessage: function (cmp, event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

// Main code
onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage.bind(helper, cmp)));
,

share|improve this answer

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

add a comment | 

You can bind it to the function call. You'd want to make the following changes:

// Helper function
handleMessage: function (cmp, event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

// Main code
onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage.bind(helper, cmp)));
,

share|improve this answer

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

// Helper function
handleMessage: function (cmp, event) 
 console.log('handleMessage');
 console.log(JSON.parse(JSON.stringify(event.data)));
,

// Main code
onInit: function (cmp, event, helper) 
 window.addEventListener("message", $A.getCallback(helper.handleMessage.bind(helper, cmp)));
,

share|improve this answer

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467

answered 6 hours ago

sfdcfoxsfdcfox

270k13217467