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/* 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";
const { Ci, Cu, Cr } = require("chrome");
const { XPCOMUtils } = require("resource://gre/modules/XPCOMUtils.jsm");
const Services = require("Services");
const { NetUtil } = require("resource://gre/modules/NetUtil.jsm");
function readInputStreamToString(stream) {
return NetUtil.readInputStreamToString(stream, stream.available());
}
/**
* This object aims to provide the nsIWebNavigation interface for mozbrowser elements.
* nsIWebNavigation is one of the interfaces expected on <xul:browser>s, so this wrapper
* helps mozbrowser elements support this.
*
* It attempts to use the mozbrowser API wherever possible, however some methods don't
* exist yet, so we fallback to the WebNavigation frame script messages in those cases.
* Ideally the mozbrowser API would eventually be extended to cover all properties and
* methods used here.
*
* This is largely copied from RemoteWebNavigation.js, which uses the message manager to
* perform all actions.
*/
function BrowserElementWebNavigation(browser) {
this._browser = browser;
}
BrowserElementWebNavigation.prototype = {
QueryInterface: XPCOMUtils.generateQI([
Ci.nsIWebNavigation,
Ci.nsISupports
]),
get _mm() {
return this._browser.frameLoader.messageManager;
},
canGoBack: false,
canGoForward: false,
goBack() {
this._browser.goBack();
},
goForward() {
this._browser.goForward();
},
gotoIndex(index) {
// No equivalent in the current BrowserElement API
this._sendMessage("WebNavigation:GotoIndex", { index });
},
loadURI(uri, flags, referrer, postData, headers) {
// No equivalent in the current BrowserElement API
this.loadURIWithOptions(uri, flags, referrer,
Ci.nsIHttpChannel.REFERRER_POLICY_DEFAULT,
postData, headers, null);
},
loadURIWithOptions(uri, flags, referrer, referrerPolicy, postData, headers,
baseURI) {
// No equivalent in the current BrowserElement API
this._sendMessage("WebNavigation:LoadURI", {
uri,
flags,
referrer: referrer ? referrer.spec : null,
referrerPolicy: referrerPolicy,
postData: postData ? readInputStreamToString(postData) : null,
headers: headers ? readInputStreamToString(headers) : null,
baseURI: baseURI ? baseURI.spec : null,
});
},
setOriginAttributesBeforeLoading(originAttributes) {
// No equivalent in the current BrowserElement API
this._sendMessage("WebNavigation:SetOriginAttributes", {
originAttributes,
});
},
reload(flags) {
let hardReload = false;
if (flags & this.LOAD_FLAGS_BYPASS_PROXY ||
flags & this.LOAD_FLAGS_BYPASS_CACHE) {
hardReload = true;
}
this._browser.reload(hardReload);
},
stop(flags) {
// No equivalent in the current BrowserElement API
this._sendMessage("WebNavigation:Stop", { flags });
},
get document() {
return this._browser.contentDocument;
},
_currentURI: null,
get currentURI() {
if (!this._currentURI) {
this._currentURI = Services.io.newURI("about:blank", null, null);
}
return this._currentURI;
},
set currentURI(uri) {
this._browser.src = uri.spec;
},
referringURI: null,
// Bug 1233803 - accessing the sessionHistory of remote browsers should be
// done in content scripts.
get sessionHistory() {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
set sessionHistory(value) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
_sendMessage(message, data) {
try {
this._mm.sendAsyncMessage(message, data);
} catch (e) {
Cu.reportError(e);
}
},
swapBrowser(browser) {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
copyStateFrom(otherWebNavigation) {
const state = [
"canGoBack",
"canGoForward",
"_currentURI",
];
for (let property of state) {
this[property] = otherWebNavigation[property];
}
},
};
const FLAGS = [
"LOAD_FLAGS_MASK",
"LOAD_FLAGS_NONE",
"LOAD_FLAGS_IS_REFRESH",
"LOAD_FLAGS_IS_LINK",
"LOAD_FLAGS_BYPASS_HISTORY",
"LOAD_FLAGS_REPLACE_HISTORY",
"LOAD_FLAGS_BYPASS_CACHE",
"LOAD_FLAGS_BYPASS_PROXY",
"LOAD_FLAGS_CHARSET_CHANGE",
"LOAD_FLAGS_STOP_CONTENT",
"LOAD_FLAGS_FROM_EXTERNAL",
"LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP",
"LOAD_FLAGS_FIRST_LOAD",
"LOAD_FLAGS_ALLOW_POPUPS",
"LOAD_FLAGS_BYPASS_CLASSIFIER",
"LOAD_FLAGS_FORCE_ALLOW_COOKIES",
"STOP_NETWORK",
"STOP_CONTENT",
"STOP_ALL",
];
for (let flag of FLAGS) {
BrowserElementWebNavigation.prototype[flag] = Ci.nsIWebNavigation[flag];
}
exports.BrowserElementWebNavigation = BrowserElementWebNavigation;
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