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/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
XPCOMUtils.defineLazyGetter(this, "gLangBundle", () =>
Services.strings.createBundle("chrome://global/locale/languageNames.properties"));
const kPermissionType = "translate";
const kLanguagesPref = "browser.translation.neverForLanguages";
function Tree(aId, aData) {
this._data = aData;
this._tree = document.getElementById(aId);
this._tree.view = this;
}
Tree.prototype = {
get boxObject() {
return this._tree.treeBoxObject;
},
get isEmpty() {
return !this._data.length;
},
get hasSelection() {
return this.selection.count > 0;
},
getSelectedItems() {
let result = [];
let rc = this.selection.getRangeCount();
for (let i = 0; i < rc; ++i) {
let min = {}, max = {};
this.selection.getRangeAt(i, min, max);
for (let j = min.value; j <= max.value; ++j)
result.push(this._data[j]);
}
return result;
},
// nsITreeView implementation
get rowCount() {
return this._data.length;
},
getCellText(aRow, aColumn) {
return this._data[aRow];
},
isSeparator(aIndex) {
return false;
},
isSorted() {
return false;
},
isContainer(aIndex) {
return false;
},
setTree(aTree) {},
getImageSrc(aRow, aColumn) {},
getProgressMode(aRow, aColumn) {},
getCellValue(aRow, aColumn) {},
cycleHeader(column) {},
getRowProperties(row) {
return "";
},
getColumnProperties(column) {
return "";
},
getCellProperties(row, column) {
return "";
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsITreeView])
};
function Lang(aCode) {
this.langCode = aCode;
this._label = gLangBundle.GetStringFromName(aCode);
}
Lang.prototype = {
toString() {
return this._label;
}
}
var gTranslationExceptions = {
onLoad() {
if (this._siteTree) {
// Re-using an open dialog, clear the old observers.
this.uninit();
}
// Load site permissions into an array.
this._sites = [];
let enumerator = Services.perms.enumerator;
while (enumerator.hasMoreElements()) {
let perm = enumerator.getNext().QueryInterface(Ci.nsIPermission);
if (perm.type == kPermissionType &&
perm.capability == Services.perms.DENY_ACTION) {
this._sites.push(perm.principal.origin);
}
}
Services.obs.addObserver(this, "perm-changed", false);
this._sites.sort();
this._siteTree = new Tree("sitesTree", this._sites);
this.onSiteSelected();
this._langs = this.getLanguageExceptions();
Services.prefs.addObserver(kLanguagesPref, this, false);
this._langTree = new Tree("languagesTree", this._langs);
this.onLanguageSelected();
},
// Get the list of languages we don't translate as an array.
getLanguageExceptions() {
let langs = Services.prefs.getCharPref(kLanguagesPref);
if (!langs)
return [];
let result = langs.split(",").map(code => new Lang(code));
result.sort();
return result;
},
observe(aSubject, aTopic, aData) {
if (aTopic == "perm-changed") {
if (aData == "cleared") {
if (!this._sites.length)
return;
let removed = this._sites.splice(0, this._sites.length);
this._siteTree.boxObject.rowCountChanged(0, -removed.length);
} else {
let perm = aSubject.QueryInterface(Ci.nsIPermission);
if (perm.type != kPermissionType)
return;
if (aData == "added") {
if (perm.capability != Services.perms.DENY_ACTION)
return;
this._sites.push(perm.principal.origin);
this._sites.sort();
let boxObject = this._siteTree.boxObject;
boxObject.rowCountChanged(0, 1);
boxObject.invalidate();
} else if (aData == "deleted") {
let index = this._sites.indexOf(perm.principal.origin);
if (index == -1)
return;
this._sites.splice(index, 1);
this._siteTree.boxObject.rowCountChanged(index, -1);
this.onSiteSelected();
return;
}
}
this.onSiteSelected();
} else if (aTopic == "nsPref:changed") {
this._langs = this.getLanguageExceptions();
let change = this._langs.length - this._langTree.rowCount;
this._langTree._data = this._langs;
let boxObject = this._langTree.boxObject;
if (change)
boxObject.rowCountChanged(0, change);
boxObject.invalidate();
this.onLanguageSelected();
}
},
_handleButtonDisabling(aTree, aIdPart) {
let empty = aTree.isEmpty;
document.getElementById("removeAll" + aIdPart + "s").disabled = empty;
document.getElementById("remove" + aIdPart).disabled =
empty || !aTree.hasSelection;
},
onLanguageSelected() {
this._handleButtonDisabling(this._langTree, "Language");
},
onSiteSelected() {
this._handleButtonDisabling(this._siteTree, "Site");
},
onLanguageDeleted() {
let langs = Services.prefs.getCharPref(kLanguagesPref);
if (!langs)
return;
let removed = this._langTree.getSelectedItems().map(l => l.langCode);
langs = langs.split(",").filter(l => removed.indexOf(l) == -1);
Services.prefs.setCharPref(kLanguagesPref, langs.join(","));
},
onAllLanguagesDeleted() {
Services.prefs.setCharPref(kLanguagesPref, "");
},
onSiteDeleted() {
let removedSites = this._siteTree.getSelectedItems();
for (let origin of removedSites) {
let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
Services.perms.removeFromPrincipal(principal, kPermissionType);
}
},
onAllSitesDeleted() {
if (this._siteTree.isEmpty)
return;
let removedSites = this._sites.splice(0, this._sites.length);
this._siteTree.boxObject.rowCountChanged(0, -removedSites.length);
for (let origin of removedSites) {
let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
Services.perms.removeFromPrincipal(principal, kPermissionType);
}
this.onSiteSelected();
},
onSiteKeyPress(aEvent) {
if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
this.onSiteDeleted();
},
onLanguageKeyPress(aEvent) {
if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
this.onLanguageDeleted();
},
onWindowKeyPress(aEvent) {
if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
window.close();
},
uninit() {
Services.obs.removeObserver(this, "perm-changed");
Services.prefs.removeObserver(kLanguagesPref, this);
}
};
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