Iframe handshaking for safe cross domain communications Uses iframes within iframes for communication (inception frames)
- Allows for parent-child communication between iframes in different domains
- Bubble events go straight up/down to allow for multiple levels of communication
- Gives a method for executing level specific functions with parameters
- Two way communications between parent/child frames
- A single JS include at every level handles the details.
http://mdx-dev.github.io/inception/index.html
The way inception works is thru the use of "channels" that exist on the different levels of domains being tied together.
On each domain, the pages being displayed will have access to a channel on their domains. Each domain will use the other domain's channel as the communication portal. The channels then bubble up the message to the appropriate level.
domain: abcdef.com
* index.html (topLevel)
* function TopLevelFunction(param) { alert(param.OtherMessage) }
* channel.html (channelA)
domain bcdef.com
* index.html (iframe)
* function ChildFunction(param) { alert(param.MyMessage) }
* channel.html (channelB)
* config
* topLevel - {type: top, target: channelB}
* iframe - {type:child, target: channelA}
* channelA - {type: channel, target: channelB}
* channelB - {type:channel}
Message from topLevel to iframe routes as such
topLevel : Inception.send({execute:'ChildFunction', MyMessage:"some text"})
-> targets ChannelB (on bcdef.com) passes json
-> ChannelB recieved message, bubbles up to IFrame
-> Iframe receives message from ChannelB and executes
iframe : Inception.send({execute:'TopLevelFunction', MyMessage:"some text"})
-> targets ChannelA (on abcdef.com) passes json
-> ChannelA recieved message, bubbles up to topLevel
-> Toplevel recieves message from ChannelA and executes
On loads, the channels register themselves into their appropriate parent to allow access for message sending.
The MIT License (MIT)
Copyright (c) 2013-2014 MDX Medical
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
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THE SOFTWARE.
Clone the repo down to a web server that can handle the PHP library and .htaccess (if you want to call .js instead of .php) visit http://yourserver/inception/example/toplevel/
The example will work the same way as if it were with different domains, the channels must exist on the different domains you want to pair, but the inception library can be used as a single source.
Simply change the URL source of the channels, point each target to the correct channel
Question or Comments simply ask.
Thanks
Rulian - Mdx Devopment : Mdx Medical