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Code Issues Projects Releases Wiki Activity

Cleanup changed preferences on disable.

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This commit is contained in:
Kris Maglione
2011-08-02 10:46:06 -04:00
parent 4dcef46f08
commit 377ef1332a
2 changed files with 58 additions and 28 deletions
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2
common/modules/base.jsm
View File

@@ -611,7 +611,7 @@ function call(fn) {
*/
function memoize(obj, key, getter) {
if (arguments.length == 1) {
obj = update({}, obj);
obj = update({ __proto__: obj.__proto__ }, obj);
for (let prop in Object.getOwnPropertyNames(obj)) {
let get = __lookupGetter__.call(obj, prop);
if (get)

84
common/modules/prefs.jsm
View File

@@ -16,8 +16,9 @@ defineModule("prefs", {
}, this);
var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]), {
SAVED: "extensions.dactyl.saved.",
ORIGINAL: "extensions.dactyl.original.",
RESTORE: "extensions.dactyl.restore.",
SAVED: "extensions.dactyl.saved.",
INIT: {},
init: function init(branch, defaults) {
@@ -28,6 +29,13 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
this.defaults = defaults ? this : this.constructor(branch, true);
this.branches = memoize({
__proto__: this,
get original() Prefs(this.ORIGINAL + this.root),
get restore() Prefs(this.RESTORE + this.root),
get saved() Prefs(this.SAVED + this.root),
});
if (!defaults)
this.restore();
@@ -37,6 +45,7 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
cleanup: function cleanup(reason) {
if (this.defaults != this)
this.defaults.cleanup();
this._observers = {};
if (this.observe) {
this.branch.removeObserver("", this);
@@ -44,8 +53,18 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
delete this.observe;
}
if (reason == "uninstall")
localPrefs.resetBranch();
if (this == prefs) {
if (~["uninstall", "disable"].indexOf(reason)) {
for (let name in values(this.branches.saved.getNames()))
this.safeReset(name, null, true);
this.branches.original.resetBranch();
this.branches.saved.resetBranch();
}
if (reason == "uninstall" && this == prefs)
localPrefs.resetBranch();
}
},
/**
@@ -181,10 +200,15 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
_checkSafe: function _checkSafe(name, message, value) {
let curval = this.get(name, null);
if (this.branches.original.get(name) == null)
this.branches.original.set(name, curval, true);
if (arguments.length > 2 && curval === value)
return;
let defval = this.defaults.get(name, null);
let saved = this.get(this.SAVED + name);
let saved = this.branches.saved.get(name);
if (saved == null && curval != defval || saved != null && curval != saved) {
let msg = _("pref.safeSet.warnChanged", name);
@@ -200,11 +224,13 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
*
* @param {string} name The preference name.
* @param {value} value The new preference value.
* @param {boolean} silent Ignore errors.
*/
safeReset: function safeReset(name, message) {
safeReset: function safeReset(name, message, silent) {
this._checkSafe(name, message);
this.reset(name);
this.reset(this.SAVED + name);
this.set(name, this.branches.original.get(name), silent);
this.branches.original.reset(name);
this.branches.saved.reset(name);
},
/**
@@ -217,7 +243,7 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
safeSet: function safeSet(name, value, message, skipSave) {
this._checkSafe(name, message, value);
this.set(name, value);
this[skipSave ? "reset" : "set"](this.SAVED + name, value);
this.branches.saved[skipSave ? "reset" : "set"](name, value);
},
/**
@@ -225,8 +251,9 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
*
* @param {string} name The preference name.
* @param {value} value The new preference value.
* @param {boolean} silent Ignore errors.
*/
set: function set(name, value) {
set: function set(name, value, silent) {
if (this._prefContexts.length)
this._prefContexts[this._prefContexts.length - 1][name] = this.get(name, null);
@@ -237,28 +264,31 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
: /*L*/"E474: Invalid argument: " + name + "=" + value);
let type = this.branch.getPrefType(name);
switch (typeof value) {
case "string":
assertType(Ci.nsIPrefBranch.PREF_STRING);
try {
switch (typeof value) {
case "string":
assertType(Ci.nsIPrefBranch.PREF_STRING);
this.branch.setComplexValue(name, Ci.nsISupportsString, services.String(value));
break;
case "number":
assertType(Ci.nsIPrefBranch.PREF_INT);
this.branch.setComplexValue(name, Ci.nsISupportsString, services.String(value));
break;
case "number":
assertType(Ci.nsIPrefBranch.PREF_INT);
this.branch.setIntPref(name, value);
break;
case "boolean":
assertType(Ci.nsIPrefBranch.PREF_BOOL);
this.branch.setIntPref(name, value);
break;
case "boolean":
assertType(Ci.nsIPrefBranch.PREF_BOOL);
this.branch.setBoolPref(name, value);
break;
default:
if (value == null && this != this.defaults)
this.reset(name);
else
throw FailedAssertion("Unknown preference type: " + typeof value + " (" + name + "=" + value + ")");
this.branch.setBoolPref(name, value);
break;
default:
if (value == null && this != this.defaults)
this.reset(name);
else
throw FailedAssertion("Unknown preference type: " + typeof value + " (" + name + "=" + value + ")");
}
}
catch (e if silent) {}
return value;
},