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Code Issues Releases Wiki Activity

headlines scroll handler: add a rate limit

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This commit is contained in:
Andrew Dolgov
2016-03-22 12:43:18 +03:00
parent 7c0d68f207
commit 63c7446a79
2 changed files with 11 additions and 0 deletions
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1
js/feedlist.js
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@@ -102,6 +102,7 @@ function viewfeed(params) {
_infscroll_disable = 0; _infscroll_disable = 0;
cleanup_memory("headlines-frame"); cleanup_memory("headlines-frame");
_headlines_scroll_offset = 0;
} }
if (infscroll_req) { if (infscroll_req) {

10
js/viewfeed.js
View File

@@ -13,6 +13,7 @@ var catchup_timeout_id = false;
var cids_requested = []; var cids_requested = [];
var loaded_article_ids = []; var loaded_article_ids = [];
var _last_headlines_update = 0; var _last_headlines_update = 0;
var _headlines_scroll_offset = 0;
var current_first_id = 0; var current_first_id = 0;
var _catchup_request_sent = false; var _catchup_request_sent = false;
@@ -1265,6 +1266,14 @@ function unpackVisibleHeadlines() {
function headlines_scroll_handler(e) { function headlines_scroll_handler(e) {
try { try {
// rate-limit in case of smooth scrolling and similar abominations
if (e.scrollTop - _headlines_scroll_offset < 10) {
return;
}
_headlines_scroll_offset = e.scrollTop;
var hsp = $("headlines-spacer"); var hsp = $("headlines-spacer");
unpackVisibleHeadlines(); unpackVisibleHeadlines();
@@ -1273,6 +1282,7 @@ function headlines_scroll_handler(e) {
if (isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && if (isCdmMode() && getInitParam("cdm_auto_catchup") == 1 &&
getSelectedArticleIds2().length <= 1 && getSelectedArticleIds2().length <= 1 &&
getInitParam("cdm_expanded")) { getInitParam("cdm_expanded")) {
var rows = $$("#headlines-frame > div[id*=RROW]"); var rows = $$("#headlines-frame > div[id*=RROW]");
for (var i = 0; i < rows.length; i++) { for (var i = 0; i < rows.length; i++) {