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stoping requesting more and more rows causing browser to stall, if browser does not give us height for rows (probably because it defered rendering)

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This commit is contained in:
Ralf Becker 2015-04-28 15:58:26 +00:00
parent 77fb3a8ee9
commit 812a9bbe8d
1 changed files with 9 additions and 9 deletions
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18
etemplate/js/et2_dataview_view_grid.js
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@ -45,7 +45,7 @@ var ET2_GRID_HOLD_COUNT = 50;
/**
* @augments et2_dataview_container
*/
var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
{
/**
* Creates the grid.
@ -253,7 +253,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
/**
* The updateTotalCount function can be used to update the total count of
* rows that are displayed inside the grid. Changing the count always causes
* the spacer at the bottom (if it exists) to be
* the spacer at the bottom (if it exists) to be
*
* @param _count specifies how many entries the grid can show.
*/
@ -425,8 +425,8 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
}
}
// Calculate the average height
if (avgCount > 0)
// Calculate the average height, but only if we have a height
if (avgCount > 0 && avgSum > 0)
{
this._avgHeight = avgSum / avgCount;
this._avgCount = avgCount;
@ -442,7 +442,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
};
}
// Otherwise return the parent average height
// Otherwise return the parent average height
if (this._parent)
{
return this._parent.getAvgHeightData();
@ -490,7 +490,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
{
return;
}
var self = this;
var _super = this._super;
this._invalidateTimeout = window.setTimeout(function() {
@ -783,7 +783,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
// container index.
var vtop = Math.max(0, vcr_top);
var idxStart = Math.floor(
Math.min(cidx + ccnt - 1,
Math.min(cidx + ccnt - 1,
cidx + (vtop - elemRange.top) / avg,
this._total
));
@ -794,7 +794,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
// container index.
var vbot = Math.max(0, vcr_bot);
var idxEnd = Math.ceil(
Math.min(cidx + ccnt - 1,
Math.min(cidx + ccnt - 1,
cidx + (vbot - elemRange.top) / avg,
this._total
));
@ -835,7 +835,7 @@ var et2_dataview_grid = et2_dataview_container.extend(et2_dataview_IViewRange,
*/
_doInvalidate: function(_super) {
if(!this.doInvalidate) return;
// Update the pixel positions
this._recalculateElementPosition();