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Browser-storage: Handle quota exceeded error

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Jermolene
2019-02-03 17:29:32 +00:00
parent e31c5563ff
commit 6f5f9ca2fb
3 changed files with 23 additions and 5 deletions
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22
plugins/tiddlywiki/browser-storage/startup.js
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@@ -21,14 +21,32 @@ exports.synchronous = true;
exports.startup = function() {
// Compute our prefix for local storage keys
var url = window.location.protocol === "file:" ? window.location.pathname : "",
prefix = "tw5#" + url + "#"
prefix = "tw5#" + url + "#";
// Make a logger
var logger = new $tw.utils.Logger("browser-storage",{
colour: "cyan"
});
// Track tiddler changes
$tw.wiki.addEventListener("change",function(changes) {
$tw.utils.each(changes,function(change,title) {
// Get the tiddler
var tiddler = $tw.wiki.getTiddler(title);
if(tiddler) {
// Get the JSON of the tiddler
var json = JSON.stringify(tiddler.getFieldStrings());
window.localStorage.setItem(prefix + title,json);
// Try to save it to local storage
try {
window.localStorage.setItem(prefix + title,json);
} catch(e) {
if(e.name === "QuotaExceededError") {
// Complain if we failed
logger.alert("Quota exceeded trying to store '" + title + "' in browser local storage");
// No point in keeping old values around for this tiddler
window.localStorage.removeItem(prefix + title);
} else {
throw e;
}
}
console.log("browser-storage: Saving",title);
} else {
window.localStorage.removeItem(prefix + title);