epriestley e0087a9f7a Add JX.Leader: synchronization over localStorage ... Summary: Ref T6559. Adds a "JX.Leader" primitive to replace the synchronization over Flash. This does a couple of things: - Offers an "onBecomeLeader" event, which we can use to open the WebSocket. - Offers an "onReceiveMessage" event, which we can use to dispatch notifications and handle requests to play sounds and send desktop notifications. - Offers a "broadcast()" method, which we can use to send desktop notification and sound requests. Test Plan: Added some code like this: ``` if (!statics.leader) { statics.leader = true; JX.Leader.listen('onBecomeLeader', function() { JX.log("This tab is now the leader."); }); JX.Leader.listen('onReceiveBroadcast', function(message, is_leader) { JX.log('[' + (is_leader ? 'As Leader' : 'Not Leader') + '] ' + message); }); JX.Leader.start(); } ``` Then: - Saw first tab open become leader reliably in Safari, Chrome, Firefox. - Saw new tab become leader reliably when the first tab was closed. - Saw broadcast() work as documented and deliver messages with correct leadership-flag and uniqueness. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T6559 Differential Revision: https://secure.phabricator.com/D11235		2015-01-06 17:50:40 -08:00
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map.php	Add JX.Leader: synchronization over localStorage	2015-01-06 17:50:40 -08:00
packages.php	Transactions - kill the old "show all" code pathways	2014-12-04 14:55:18 -08:00