gecko/mobile/xul/components/ContentPermissionPrompt.js

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2012-05-21 04:12:37 -07:00
/* 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/. */
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
const kCountBeforeWeRemember = 5;
function setPagePermission(type, principal, allow) {
let pm = Services.perms;
let contentPrefs = Services.contentPrefs;
let contentPrefName = type + ".request.remember";
if (!contentPrefs.hasPref(principal.URI, contentPrefName))
contentPrefs.setPref(principal.URI, contentPrefName, 0);
let count = contentPrefs.getPref(principal.URI, contentPrefName);
if (allow == false)
count--;
else
count++;
contentPrefs.setPref(principal.URI, contentPrefName, count);
if (count == kCountBeforeWeRemember)
pm.addFromPrincipal(principal, type, Ci.nsIPermissionManager.ALLOW_ACTION);
else if (count == -kCountBeforeWeRemember)
pm.addFromPrincipal(principal, type, Ci.nsIPermissionManager.DENY_ACTION);
}
const kEntities = { "geolocation": "geolocation", "desktop-notification": "desktopNotification",
"indexedDB": "offlineApps", "indexedDBQuota": "indexedDBQuota",
"openWebappsManage": "openWebappsManage" };
function ContentPermissionPrompt() {}
ContentPermissionPrompt.prototype = {
classID: Components.ID("{C6E8C44D-9F39-4AF7-BCC0-76E38A8310F5}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionPrompt]),
getChromeWindow: function getChromeWindow(aWindow) {
let chromeWin = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIDocShellTreeItem)
.rootTreeItem
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindow)
.QueryInterface(Ci.nsIDOMChromeWindow);
return chromeWin;
},
getNotificationBoxForRequest: function getNotificationBoxForRequest(request) {
let notificationBox = null;
if (request.window) {
let requestingWindow = request.window.top;
let chromeWin = this.getChromeWindow(requestingWindow).wrappedJSObject;
let windowID = window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
let browser = chromeWin.Browser.getBrowserForWindowId(windowID);
return chromeWin.getNotificationBox(browser);
}
let chromeWin = request.element.ownerDocument.defaultView;
return chromeWin.Browser.getNotificationBox(request.element);
},
handleExistingPermission: function handleExistingPermission(request) {
let result = Services.perms.testExactPermissionFromPrincipal(request.principal, request.type);
if (result == Ci.nsIPermissionManager.ALLOW_ACTION) {
request.allow();
return true;
}
if (result == Ci.nsIPermissionManager.DENY_ACTION) {
request.cancel();
return true;
}
return false;
},
prompt: function(request) {
// returns true if the request was handled
if (this.handleExistingPermission(request))
return;
let pm = Services.perms;
let notificationBox = this.getNotificationBoxForRequest(request);
let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let notification = notificationBox.getNotificationWithValue(request.type);
if (notification)
return;
let entityName = kEntities[request.type];
let buttons = [{
label: browserBundle.GetStringFromName(entityName + ".allow"),
accessKey: null,
callback: function(notification) {
setPagePermission(request.type, request.principal, true);
request.allow();
}
},
{
label: browserBundle.GetStringFromName(entityName + ".dontAllow"),
accessKey: null,
callback: function(notification) {
setPagePermission(request.type, request.principal, false);
request.cancel();
}
}];
let message = browserBundle.formatStringFromName(entityName + ".wantsTo",
[request.principal.URI.host], 1);
let newBar = notificationBox.appendNotification(message,
request.type,
"", // Notifications in Fennec do not display images.
notificationBox.PRIORITY_WARNING_MEDIUM,
buttons);
}
};
//module initialization
const NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentPermissionPrompt]);