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mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-11-30 13:29:56 +00:00
TiddlyWiki5/plugins/tiddlywiki/consent-banner/startup.js

108 lines
3.3 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/consent-banner/startup.js
type: application/javascript
module-type: startup
Startup initialisation
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Export name and synchronous status
exports.name = "consent-banner";
exports.platforms = ["browser"];
exports.after = ["startup"];
exports.before = ["render"];
exports.synchronous = true;
var CHECK_CONSENT_INTERVAL = 1000, // Milliseconds between checking local storage
IS_LOGGED_IN_TITLE = "$:/status/IsLoggedIn",
CONSENT_KEY = "COOKIE_CONSENT", // Local storage keyname
CONSENT_TITLE = "$:/state/consent-banner/accepted", // "": undeclared, "yes": accepted, "no": declined
CONFIG_BLOCK_EMBEDDED_CONTENT_TITLE = "$:/config/plugins/tiddlywiki/consent-banner/block-embedded-content",
EMBEDDED_MESSAGE_WRAPPER_TITLE = "$:/plugins/tiddlywiki/consent-banner/blocked-embed-message-wrapper";
exports.startup = function() {
var consentState = "",
setConsentStatus = function(state) {
if(consentState !== state) {
consentState = state;
// Write to local storage
window.localStorage.setItem(CONSENT_KEY,state);
// Write to a state tiddler
$tw.wiki.addTiddler(new $tw.Tiddler({
title: CONSENT_TITLE,
text: state
}));
}
},
calculateConsentStatus = function() {
// Consent is implied for logged in users, otherwise we check local storage
return ($tw.wiki.getTiddlerText(IS_LOGGED_IN_TITLE) === "yes" && "yes") || window.localStorage.getItem(CONSENT_KEY) || "";
},
checkConsentStatus = function() {
setConsentStatus(calculateConsentStatus());
if(consentState === "") {
pollConsentStatus();
}
},
pollConsentStatus = function() {
setTimeout(checkConsentStatus,CHECK_CONSENT_INTERVAL);
};
// Set the current consent status
checkConsentStatus();
// Listen for consent messages
$tw.rootWidget.addEventListener("tm-consent-accept",function(event) {
setConsentStatus("yes");
});
$tw.rootWidget.addEventListener("tm-consent-decline",function(event) {
setConsentStatus("no");
});
$tw.rootWidget.addEventListener("tm-consent-clear",function(event) {
setConsentStatus("");
});
// Add our element rendering hook
if($tw.wiki.getTiddlerText(CONFIG_BLOCK_EMBEDDED_CONTENT_TITLE,"no") === "yes") {
$tw.hooks.addHook("th-rendering-element",function(parseTreeNodes,widget) {
if(parseTreeNodes) {
return parseTreeNodes;
}
if(["iframe","object","embed"].indexOf(widget.tag) !== -1 && widget.getVariable("tv-block-embedded-content","no") === "yes") {
var url = widget.getAttribute("src"),
addUnitsIfMissing = function(str) {
str = "" + str;
return str + (("" + parseInt(str,10)) === str ? "px" : "");
},
width = addUnitsIfMissing(widget.getAttribute("width","")),
height = addUnitsIfMissing(widget.getAttribute("height",""));
return [
{
type: "vars",
attributes: {
url: {type: "string", value: url},
width: {type: "string", value: width},
height: {type: "string", value: height}
},
children: [
{
type: "transclude",
attributes: {
tiddler: {type: "string", value: EMBEDDED_MESSAGE_WRAPPER_TITLE},
mode: {type: "string", value: "inline"}
}
}
]
}
];
}
return null;
});
}
};
})();