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Speed up narrowing 

(imported from commit e1f06866ebc7d3dae3a5813565002853a6f6d8ba)
This commit is contained in:
Keegan McAllister 2012-09-11 15:37:09 -04:00
parent 34a7ad5be0
commit b4103798f5
1 changed files with 7 additions and 0 deletions
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7
zephyr/static/js/zephyr.js
View File

@ -326,6 +326,10 @@ function apply_view(element) {
}
function do_narrow(description, filter_function) {
// Hide the messages temporarily, so the browser doesn't waste time
// incrementally recalculating the layout.
$("#main_div").hide();
// We want the zephyr on which the narrow happened to stay in the same place if possible.
var old_top = $("#main_div").offset().top - get_selected_zephyr_row().offset().top;
current_view_predicate = filter_function;
@ -333,6 +337,9 @@ function do_narrow(description, filter_function) {
apply_view($(this));
});
// Show the new set of messages.
$("#main_div").show();
select_zephyr(selected_zephyr_id);
scroll_to_selected();