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Code Issues Releases Wiki Activity

svg.js: fix crash for firefox private mode (Forum #64541)

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git-svn-id: https://svn.fhem.de/fhem/trunk@13058 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
rudolfkoenig 2017-01-13 17:14:34 +00:00
parent fa77e190aa
commit 22c4d988b9
1 changed files with 15 additions and 5 deletions
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16
fhem/www/pgm2/svg.js
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@ -1,16 +1,24 @@
"use strict"; "use strict";
if(!svgNS) {
var svgNS = "http://www.w3.org/2000/svg"; var svgNS = "http://www.w3.org/2000/svg";
var svg_initialized={}, lastHidden; var svg_initialized={}, lastHidden;
var svg_db, svg_dbtbl = "SVG_KEYVALUE", svg_pastedata; var svg_db, svg_dbtbl = "SVG_KEYVALUE", svg_pastedata, svgCounter=0;
}
function function
svg_initDb(nextFn) svg_initDb(nextFn)
{ {
if(window.indexedDB == undefined) if(window.indexedDB == undefined)
return; return;
var dbreq = indexedDB.open("FHEM", 1) var dbreq = indexedDB.open("FHEM", 1);
dbreq.onsuccess = function(op) { svg_db = op.target.result; nextFn() } dbreq.onsuccess = function(op) { svg_db = op.target.result; nextFn() }
dbreq.onerror = function(op) { log("indexedDB.open Error: " + op.message); } dbreq.onerror = function(op) {
var oldfn = window.onerror;
window.onerror = undefined; // stupid FireFox private mode (Forum #64541)
log("indexedDB.open Error: " + op.message);
setTimeout(function(){window.onerror = oldfn;}, 100);
}
dbreq.onupgradeneeded = function(op) { dbreq.onupgradeneeded = function(op) {
svg_db = op.target.result; svg_db = op.target.result;
svg_db.createObjectStore(svg_dbtbl, { keyPath:"key" }); svg_db.createObjectStore(svg_dbtbl, { keyPath:"key" });
@ -353,6 +361,8 @@ svg_init(par) // also called directly from perl, in race condition
} }
$(document).ready(function(){ $(document).ready(function(){
if(svgCounter++ > 0) // if svg.js is included twice, e.g. by Dashboard
return;
svg_init(); // <embed><svg> svg_init(); // <embed><svg>
svg_initDb(function(){ svg_initDb(function(){
svg_load("svg_pastedata", function(val) {svg_pastedata = val} ); svg_load("svg_pastedata", function(val) {svg_pastedata = val} );