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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";
var EXPORTED_SYMBOLS = ["TabTarget"];
const { Target } = ChromeUtils.import(
"chrome://remote/content/targets/Target.jsm"
);
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
const { TabSession } = ChromeUtils.import(
"chrome://remote/content/sessions/TabSession.jsm"
);
const { XPCOMUtils } = ChromeUtils.import(
"resource://gre/modules/XPCOMUtils.jsm"
);
const { RemoteAgent } = ChromeUtils.import(
"chrome://remote/content/RemoteAgent.jsm"
);
XPCOMUtils.defineLazyServiceGetter(
this,
"Favicons",
"@mozilla.org/browser/favicon-service;1",
"nsIFaviconService"
);
/**
* Target for a local tab or a remoted frame.
*/
class TabTarget extends Target {
/**
* @param Targets targets
* @param BrowserElement browser
*/
constructor(targets, browser) {
super(targets, TabSession);
this.browser = browser;
// Define the HTTP path to query this target
this.path = `/devtools/page/${this.id}`;
Services.obs.addObserver(this, "message-manager-disconnect");
}
destructor() {
Services.obs.removeObserver(this, "message-manager-disconnect");
super.destructor();
}
get browserContextId() {
return parseInt(this.browser.getAttribute("usercontextid"));
}
get browsingContext() {
return this.browser.browsingContext;
}
get mm() {
return this.browser.messageManager;
}
get window() {
return this.browser.ownerGlobal;
}
get tab() {
return this.window.gBrowser.getTabForBrowser(this.browser);
}
/**
* Determines if the content browser remains attached
* to its parent chrome window.
*
* We determine this by checking if the <browser> element
* is still attached to the DOM.
*
* @return {boolean}
* True if target's browser is still attached,
* false if it has been disconnected.
*/
get closed() {
return !this.browser || !this.browser.isConnected;
}
get description() {
return "";
}
get frontendURL() {
return null;
}
/** @return {Promise.<String=>} */
get faviconUrl() {
return new Promise((resolve, reject) => {
Favicons.getFaviconURLForPage(this.browser.currentURI, url => {
if (url) {
resolve(url.spec);
} else {
resolve(null);
}
});
});
}
get title() {
return this.browsingContext.currentWindowGlobal.documentTitle;
}
get type() {
return "page";
}
get url() {
return this.browser.currentURI.spec;
}
get wsDebuggerURL() {
const { host, port } = RemoteAgent;
return `ws://${host}:${port}${this.path}`;
}
toString() {
return `[object Target ${this.id}]`;
}
toJSON() {
return {
description: this.description,
devtoolsFrontendUrl: this.frontendURL,
// TODO(ato): toJSON cannot be marked async )-:
faviconUrl: "",
id: this.id,
// Bug 1680817: Fails to encode some UTF-8 characters
// title: this.title,
type: this.type,
url: this.url,
browsingContextId: this.browsingContext.id,
webSocketDebuggerUrl: this.wsDebuggerURL,
};
}
// nsIObserver
observe(subject, topic, data) {
if (subject === this.mm && subject == "message-manager-disconnect") {
// disconnect debugging target if <browser> is disconnected,
// otherwise this is just a host process change
if (this.closed) {
this.disconnect();
}
}
}
// XPCOM
get QueryInterface() {
return ChromeUtils.generateQI(["nsIHttpRequestHandler", "nsIObserver"]);
}
}
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