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28f3dfa284
This commit was originally automatically generated using `tools/lint --only=eslint --fix`. It was then modified by tabbott to contain only changes to a set of files that are unlikely to result in significant merge conflicts with any open pull request, excluding about 20 files. His plan is to merge the remaining changes with more precise care, potentially involving merging parts of conflicting pull requests before running the `eslint --fix` operation. Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
let actively_scrolling = false;
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let loading_more_messages_indicator_showing = false;
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exports.show_loading_older = function () {
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if (!loading_more_messages_indicator_showing) {
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loading.make_indicator($('#loading_more_messages_indicator'),
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{abs_positioned: true});
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loading_more_messages_indicator_showing = true;
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floating_recipient_bar.hide();
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}
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};
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exports.hide_loading_older = function () {
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if (loading_more_messages_indicator_showing) {
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loading.destroy_indicator($("#loading_more_messages_indicator"));
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loading_more_messages_indicator_showing = false;
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}
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};
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exports.hide_indicators = function () {
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exports.hide_loading_older();
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};
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exports.actively_scrolling = function () {
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return actively_scrolling;
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};
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exports.scroll_finished = function () {
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actively_scrolling = false;
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if (!$('#home').hasClass('active')) {
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return;
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}
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if (!pointer.suppress_scroll_pointer_update) {
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message_viewport.keep_pointer_in_view();
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} else {
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pointer.set_suppress_scroll_pointer_update(false);
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}
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floating_recipient_bar.update();
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if (message_viewport.at_top()) {
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message_fetch.maybe_load_older_messages({
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msg_list: current_msg_list,
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show_loading: exports.show_loading_older,
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hide_loading: exports.hide_loading_older,
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});
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}
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if (message_viewport.at_bottom()) {
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message_fetch.maybe_load_newer_messages({
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msg_list: current_msg_list,
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});
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}
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// When the window scrolls, it may cause some messages to
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// enter the screen and become read. Calling
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// unread_ops.process_visible will update necessary
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// data structures and DOM elements.
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setTimeout(unread_ops.process_visible, 0);
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};
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let scroll_timer;
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function scroll_finish() {
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actively_scrolling = true;
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clearTimeout(scroll_timer);
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scroll_timer = setTimeout(exports.scroll_finished, 100);
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}
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exports.initialize = function () {
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message_viewport.message_pane.scroll(_.throttle(function () {
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unread_ops.process_visible();
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scroll_finish();
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}, 50));
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};
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window.message_scroll = exports;
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