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| author | Mario <mario@mariovavti.com> | 2020-07-16 10:13:26 +0000 |
|---|---|---|
| committer | Mario <mario@mariovavti.com> | 2020-07-16 10:13:26 +0000 |
| commit | 1dbd85322de960042d67c2c78485d0e83ff90177 (patch) | |
| tree | f2f1db2212740e37fdbbfd094077b2329f416874 | |
| parent | fe90096ace5328af22268eefce0d8dd66d7f7f43 (diff) | |
| download | volse-hubzilla-1dbd85322de960042d67c2c78485d0e83ff90177.tar.gz volse-hubzilla-1dbd85322de960042d67c2c78485d0e83ff90177.tar.bz2 volse-hubzilla-1dbd85322de960042d67c2c78485d0e83ff90177.zip | |
an attempt to improve lazy loading
| -rw-r--r-- | view/js/main.js | 86 |
1 files changed, 79 insertions, 7 deletions
diff --git a/view/js/main.js b/view/js/main.js index 04454e0ea..1e7ff59c4 100644 --- a/view/js/main.js +++ b/view/js/main.js @@ -31,6 +31,8 @@ var sse_offset = 0; var sse_type; var sse_partial_result = false; +var page_cache = {}; + // take care of tab/window reloads on channel change if(localStorage.getItem('uid') !== localUser.toString()) { localStorage.clear(); @@ -217,15 +219,16 @@ $(document).ready(function() { if(e) pageHasMoreContent = false; + $(document).on('hz:updateConvItems', function(event) { + cache_next_page(); + }); + }); function getConversationSettings() { $.get('settings/conversation/?f=&aj=1',function(data) { $('#conversation_settings_body').html(data); }); - - - } function postConversationSettings() { @@ -581,6 +584,8 @@ function contextualHelpFocus(target, openSidePanel) { function updatePageItems(mode, data) { + $(document).trigger('hz:updatePageItems'); + if(mode === 'append') { newitemcount = 0; $(data).each(function() { @@ -608,6 +613,8 @@ function updatePageItems(mode, data) { function updateConvItems(mode,data) { + $(document).trigger('hz:updateConvItems'); + if(mode === 'update' || mode === 'replace') { prev = 'threads-begin'; } @@ -954,6 +961,8 @@ function liveUpdate(notify_id) { update_url = buildCmd(); + console.log('displaying: ' + update_url); + if(page_load) { $("#page-spinner").show(); if(bParam_page == 1) @@ -966,13 +975,21 @@ function liveUpdate(notify_id) { var orgHeight = $("#region_2").height(); } + if(page_cache.data && bParam_page == page_cache.page && page_cache.time > (Date.now() - 60000)) { + page_load = false; + scroll_next = false; + updateConvItems(update_mode,page_cache.data); + in_progress = false; + return; + } + var dstart = new Date(); console.log('LOADING data...'); $.get(update_url, function(data) { // on shared hosts occasionally the live update process will be killed // leaving an incomplete HTML structure, which leads to conversations getting - // truncated and the page messed up if all the divs aren't closed. We will try + // truncated and the page messed up if all the divs aren't closed. We will try // again and give up if we can't get a valid HTML response after 10 tries. if((data.indexOf("<html>") != (-1)) && (data.indexOf("</html>") == (-1))) { @@ -985,7 +1002,7 @@ function liveUpdate(notify_id) { else { console.log('Incomplete data. Too many attempts. Giving up.'); } - } + } // else data was valid - reset the recursion counter liveRecurse = 0; @@ -1042,10 +1059,65 @@ function liveUpdate(notify_id) { scroll_next = false; updateConvItems(update_mode,data); in_progress = false; + } + + }); +} + +function cache_next_page() { + page_load = true; + bParam_page = bParam_page + 1; + update_url = buildCmd(); + + $.get(update_url, function(data) { + + // on shared hosts occasionally the live update process will be killed + // leaving an incomplete HTML structure, which leads to conversations getting + // truncated and the page messed up if all the divs aren't closed. We will try + // again and give up if we can't get a valid HTML response after 10 tries. + if((data.indexOf("<html>") != (-1)) && (data.indexOf("</html>") == (-1))) { + console.log('Incomplete data. Reloading'); + in_progress = false; + liveRecurse ++; + if(liveRecurse < 10) { + liveUpdate(); + } + else { + console.log('Incomplete data. Too many attempts. Giving up.'); + } } + // else data was valid - reset the recursion counter + liveRecurse = 0; + + console.log('cached: ' + update_url); + + $('.wall-item-body, .wall-photo-item', data).imagesLoaded() + .always( function( instance ) { + console.log('page_cache images loaded:'); + + page_cache.data = data; + page_cache.page = bParam_page; + page_cache.time = Date.now(); + + bParam_page = bParam_page - 1; + page_load = false; + }) + .done( function( instance ) { + console.log('success'); + }) + .fail( function() { + console.log('at least one is broken'); + }) + .progress( function( instance, image ) { + //console.log(instance.progressedCount + '/' + instance.images.length); + //var result = image.isLoaded ? 'loaded' : 'broken'; + //console.log( 'image is ' + result + ' for ' + image.img.src ); + }); + }); + } function pageUpdate() { @@ -1509,7 +1581,7 @@ function zFormError(elm,x) { $(window).scroll(function () { if(typeof buildCmd == 'function') { // This is a content page with items and/or conversations - if($(window).scrollTop() + $(window).height() > $(document).height() - 300) { + if($(window).scrollTop() + $(window).height() > $(document).height() - 500) { if((pageHasMoreContent) && (! loadingPage)) { next_page++; scroll_next = true; @@ -1520,7 +1592,7 @@ $(window).scroll(function () { } else { // This is some other kind of page - perhaps a directory - if($(window).scrollTop() + $(window).height() > $(document).height() - 300) { + if($(window).scrollTop() + $(window).height() > $(document).height() - 500) { if((pageHasMoreContent) && (! loadingPage) && (! justifiedGalleryActive)) { next_page++; scroll_next = true; |