phillip/ingress-intel-total-conversion
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possible performance improvement - status bar display updated moved to a timer.

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so 1. it happens after any delays rendering in the browser
and 2. performance (no repeated updates one after another - possible browser style recalculations)

could move more of the code into the timer event?
This commit is contained in:
Jon Atkins 2014-03-19 05:25:50 +00:00
parent 4dd944a642
commit d019ebd15b
1 changed files with 21 additions and 31 deletions
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34
code/status_bar.js
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@ -2,6 +2,8 @@
// gives user feedback about pending operations. Draws current status
// to website. Updates info in layer chooser.
window.renderUpdateStatusTimer_ = undefined;
window.renderUpdateStatus = function() {
var progress = 1;
@ -41,28 +43,6 @@ window.renderUpdateStatus = function() {
t += '...unknown...';
}
/*
if(mapRunsUserAction)
t += '<span class="help" title="Paused due to user interaction">paused</span';
else if(isIdle())
t += '<span style="color:#888">Idle</span>';
else if(window.requests._quickRefreshPending)
t += 'refreshing';
else if(window.activeRequests.length > 0)
t += window.activeRequests.length + ' requests';
else {
// tooltip with detailed tile counts
t += '<span class="help" title="'+window.statusTotalMapTiles+' tiles: '+window.statusCachedMapTiles+' cached, '+window.statusSuccessMapTiles+' successful, '+window.statusStaleMapTiles+' stale, '+window.statusErrorMapTiles+' failed">';
// basic error/out of date/up to date message
if (window.statusErrorMapTiles) t += '<span style="color:#f66">Errors</span>';
else if (window.statusStaleMapTiles) t += '<span style="color:#fa6">Out of date</span>';
else t += 'Up to date';
t += '</span>';
}
*/
t += '</span>';
//request status
@ -72,6 +52,14 @@ window.renderUpdateStatus = function() {
t += ' <span style="color:#f66">' + window.failedRequestCount + ' failed</span>'
//it's possible that updating the status bar excessively causes some performance issues. so rather than doing it
//immediately, delay it to the next javascript event loop, cancelling any pending update
// will also cause any browser-related rendering to occur first, before the status actually updates
if (window.renderUpdateStatusTimer_) clearTimeout(window.renderUpdateStatusTimer_);
window.renderUpdateStatusTimer_ = setTimeout ( function() {
window.renderUpdateStatusTimer_ = undefined;
$('#innerstatus').html(t);
//$('#updatestatus').click(function() { startRefreshTimeout(10); });
@ -84,4 +72,6 @@ window.renderUpdateStatus = function() {
if (typeof android !== 'undefined' && android && android.setProgress)
android.setProgress(progress);
}, 0);
}