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<!DOCTYPE html>
<html>
<head>
<script>
var cs = chrome.experimental.contentSettings;
var pref = cs.misc.enableReferrers;
/**
* Returns whether the |levelOfControl| means that the extension can change the
* preference value.
*
* @param levelOfControl{string}
*/
function settingIsControllable(levelOfControl) {
return (levelOfControl == "ControllableByThisExtension" ||
levelOfControl == "ControlledByThisExtension");
}
/**
* Updates the UI to reflect the state of the preference.
*
* @param settings{object} A settings object, as returned from |get()| or the
* |onchange| event.
*/
function updateUI(settings) {
var disableUI = !settingIsControllable(settings.levelOfControl);
document.getElementById("regularValue").disabled = disableUI;
document.getElementById("useSeparateIncognitoSettings").disabled = disableUI;
if (settings.hasOwnProperty('incognitoSpecific')) {
var hasIncognitoValue = settings.incognitoSpecific;
document.getElementById("useSeparateIncognitoSettings").checked =
hasIncognitoValue;
document.getElementById("incognitoValue").disabled =
disableUI || !hasIncognitoValue;
document.getElementById("incognitoValue").checked = settings.value;
} else {
document.getElementById("regularValue").checked = settings.value;
}
}
/**
* Wrapper for |updateUI| which is used as callback for the |get()| method and
* which logs the result.
* If there was an error getting the preference, does nothing.
*
* @param settings{object} A settings object, as returned from |get()|.
*/
function updateUIFromGet(settings) {
if (settings) {
console.log('pref.get result:' + JSON.stringify(settings));
updateUI(settings);
}
}
/**
* Wrapper for |updateUI| which is used as handler for the |onchange| event
* and which logs the result.
*
* @param settings{object} A settings object, as returned from the |onchange|
* event.
*/
function updateUIFromOnChange(settings) {
console.log('pref.onChange event:' + JSON.stringify(settings));
updateUI(settings);
}
/*
* Initializes the UI.
*/
function init() {
chrome.extension.isAllowedIncognitoAccess(function(allowed) {
if (allowed) {
pref.get({'incognito': true}, updateUIFromGet);
document.getElementById("incognito").style.display = "block";
document.getElementById("incognito-forbidden").style.display = "none";
}
});
pref.get({}, updateUIFromGet);
pref.onChange.addListener(updateUIFromOnChange);
}
/**
* Called from the UI to change the preference value.
*
* @param enabled{boolean} The new preference value.
* @param incognito{boolean} Whether the value is specific to incognito mode.
*/
function setPrefValue(enabled, incognito) {
pref.set({'value':enabled, 'incognito': incognito});
}
/**
* Called from the UI to change whether to use separate settings for
* incognito mode.
*
* @param value{boolean} whether to use separate settings for
* incognito mode.
*/
function setUseSeparateIncognitoSettings(value) {
if (!value) {
pref.clear({'incognito': true});
} else {
// Explicitly set the value for incognito mode.
pref.get({'incognito': true}, function(settings) {
pref.set({'incognito': true, 'value': settings.value});
});
}
document.getElementById("incognitoValue").disabled = !value;
}
</script>
</head>
<body onload="init()">
<div style="width: 300px">
<input type="checkbox" onclick="setPrefValue(this.checked)" id="regularValue" /> Enable referrers
<div id="incognito" style="display:none">
<input type="checkbox" onclick="setUseSeparateIncognitoSettings(this.checked)" id="useSeparateIncognitoSettings" /> Use separate setting for incognito mode:
<br>
<input type="checkbox" onclick="setPrefValue(this.checked, true)" id="incognitoValue" disabled="disabled"/> Enable referrers in incognito sessions
</div>
<div id="incognito-forbidden">
Select "Allow in incognito" to access incognito preferences
</div>
</div>
</body>
</html>
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