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Code Issues Releases Wiki Activity

DynaView: Suppress local storage errors

This commit is contained in:
Jeremy Ruston 2019-06-21 15:19:51 +01:00
parent fd8ede07bf
commit a6500ba711
1 changed files with 21 additions and 15 deletions
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36
plugins/tiddlywiki/dynaview/dynaview.js
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@ -31,6 +31,8 @@ var LOCAL_STORAGE_KEY_PREFIX = "tw5-dynaview-scroll-position#";
var hasRestoredScrollPosition = false;
var localStorageHasFailed = false;
exports.startup = function() {
var topmost = null, lastScrollY;
$tw.boot.disableStartupNavigation = true;
@ -165,16 +167,18 @@ function updateAddressBar() {
}
function saveScrollPosition() {
if(hasRestoredScrollPosition && $tw.wiki.getTiddlerText("$:/config/DynaView/RestoreScrollPositionAtStartup") === "yes") {
var top = findTopmostTiddler();
if(top.element) {
try {
window.localStorage.setItem(LOCAL_STORAGE_KEY_PREFIX + window.location.pathname,JSON.stringify({
title: top.title,
offset: top.offset
}));
} catch(e) {
console.log("Error setting local storage",e)
if(!localStorageHasFailed) {
if(hasRestoredScrollPosition && $tw.wiki.getTiddlerText("$:/config/DynaView/RestoreScrollPositionAtStartup") === "yes") {
var top = findTopmostTiddler();
if(top.element) {
try {
window.localStorage.setItem(LOCAL_STORAGE_KEY_PREFIX + window.location.pathname,JSON.stringify({
title: top.title,
offset: top.offset
}));
} catch(e) {
localStorageHasFailed = true;
}
}
}
}
@ -182,11 +186,13 @@ function saveScrollPosition() {
function restoreScrollPosition() {
var json;
try {
json = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY_PREFIX + window.location.pathname));
} catch(e) {
// Ignore errors
};
if(!localStorageHasFailed) {
try {
json = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY_PREFIX + window.location.pathname));
} catch(e) {
localStorageHasFailed = true;
};
}
return json;
}