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Better calculation for next/previous index of sparse map

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Nathan Gray 2014-01-18 11:47:36 +00:00
parent 35c70fea93
commit 46c80212ba
1 changed files with 5 additions and 4 deletions
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9
etemplate/js/et2_dataview_controller_selection.js
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@ -327,16 +327,17 @@ var et2_dataview_selectionManager = Class.extend(
} }
function getElementRelatively (_step) { function getElementRelatively (_step) {
var total = self._total || Object.keys(self._indexMap).length;
var max_index = Math.max.apply(Math,Object.keys(self._indexMap));
// Get a reasonable number of iterations - not all // Get a reasonable number of iterations - not all
var total = Math.max(1,Math.min(Object.keys(self._indexMap).length,50)); var count = Math.max(1,Math.min(self._total,50));
var count = total;
var element = null; var element = null;
var idx = _entry.idx; var idx = _entry.idx;
while(element == null && count > 0 && idx <= total) while(element == null && count > 0)
{ {
count--; count--;
element = getIndexAO(Math.max(0, element = getIndexAO(Math.max(0,
Math.min(self._total||total - 1, idx += _step))); Math.min(max_index, idx += _step)));
} }
return element; return element;
}; };