Use a port for communication#15

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terrycojones wants to merge 14 commits intomrcoles:masterfrom

terrycojones:use-port-for-communication

Commits on Oct 10, 2013

First cut at refactoring to make the code easier to use in other extensions.
terrycojones
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README cleanups
terrycojones
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Removed stray console.log line.
terrycojones
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Removed inadvertent creation of global 'canvas' var.
terrycojones
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Use a port to communicate between the extension and the injected JS. This makes sure that no other extension communication can interfere with the screen capture.
terrycojones
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Factor out 2 copies of code calling for a next arrangement.
terrycojones
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Added a var giving the name of the injected capture script. Changed README to tell people they need to change that variable if they rename page.js
terrycojones
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Corrected behavior (completely ignore) for unknown chrome.runtime.connect connections.
terrycojones
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Increase timeout on waiting for the injected script to be loaded (I just had it take >1 second). Add 100ms delay before disconnecting the port to avoid occasional exception being thrown due to last…
terrycojones
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Commits on Oct 11, 2013

Allow more time for the extension to request the next arrangement. 750ms was definitely too short. Test the value of 'port' before using it after a setTimeout.
terrycojones
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Commits on Oct 14, 2013

Increased round-trip timeout in page.js to 3s to be conservative.
terrycojones
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Commits on Oct 15, 2013

Up the injection timeout to 3s. May as well be conservative here too.
terrycojones
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Commits on Oct 30, 2013