1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
10 interface nsIDOMProcessParent;
12 [Exposed=Window, ChromeOnly]
13 interface WindowContext {
14 readonly attribute BrowsingContext? browsingContext;
16 readonly attribute WindowGlobalChild? windowGlobalChild; // in-process only
18 readonly attribute unsigned long long innerWindowId;
20 readonly attribute WindowContext? parentWindowContext;
22 readonly attribute WindowContext topWindowContext;
24 readonly attribute boolean isInProcess;
26 // True if this WindowContext is currently frozen in the BFCache.
27 readonly attribute boolean isInBFCache;
29 // True if this window has registered a "beforeunload" event handler.
30 readonly attribute boolean hasBeforeUnload;
32 // True if the principal of this window is for a local ip address.
33 readonly attribute boolean isLocalIP;
35 readonly attribute boolean shouldResistFingerprinting;
38 * Partially determines whether script execution is allowed in this
39 * BrowsingContext. Script execution will be permitted only if this
40 * attribute is true and script execution is allowed in the owner
43 * May only be set in the context's owning process.
45 [SetterThrows] attribute boolean allowJavascript;
48 // Keep this in sync with nsIContentViewer::PermitUnloadAction.
49 enum PermitUnloadAction {
55 [Exposed=Window, ChromeOnly]
56 interface WindowGlobalParent : WindowContext {
57 readonly attribute boolean isClosed;
59 readonly attribute boolean isCurrentGlobal;
61 readonly attribute unsigned long long outerWindowId;
62 readonly attribute unsigned long long contentParentId;
64 readonly attribute long osPid;
66 // A WindowGlobalParent is the root in its process if it has no parent, or its
67 // embedder is in a different process.
68 readonly attribute boolean isProcessRoot;
70 // Is the document loaded in this WindowGlobalParent the initial document
71 // implicitly created while "creating a new browsing context".
72 // https://html.spec.whatwg.org/multipage/browsers.html#creating-a-new-browsing-context
73 readonly attribute boolean isInitialDocument;
75 readonly attribute FrameLoader? rootFrameLoader; // Embedded (browser) only
77 readonly attribute WindowGlobalChild? childActor; // in-process only
79 // Checks for any WindowContexts with "beforeunload" listeners in this
80 // WindowGlobal's subtree. If any exist, a "beforeunload" event is
81 // dispatched to them. If any of those request to block the navigation,
82 // displays a prompt to the user. Returns a boolean which resolves to true
83 // if the navigation should be allowed.
85 // If `timeout` is greater than 0, it is the maximum time (in milliseconds)
86 // we will wait for a child process to respond with a request to block
87 // navigation before proceeding. If the user needs to be prompted, however,
88 // the promise will not resolve until the user has responded, regardless of
91 Promise<boolean> permitUnload(optional PermitUnloadAction action = "prompt",
92 optional unsigned long timeout = 0);
94 // Information about the currently loaded document.
95 readonly attribute Principal documentPrincipal;
96 readonly attribute Principal documentStoragePrincipal;
97 readonly attribute Principal? contentBlockingAllowListPrincipal;
98 readonly attribute URI? documentURI;
99 readonly attribute DOMString documentTitle;
100 readonly attribute nsICookieJarSettings? cookieJarSettings;
102 // True if the the currently loaded document is in fullscreen.
103 attribute boolean fullscreen;
105 // Bit mask containing content blocking events that are recorded in
106 // the document's content blocking log.
107 readonly attribute unsigned long contentBlockingEvents;
109 // String containing serialized content blocking log.
110 readonly attribute DOMString contentBlockingLog;
112 // DOM Process which this window was loaded in. Will be either InProcessParent
113 // for windows loaded in the parent process, or ContentParent for windows
114 // loaded in the content process.
115 readonly attribute nsIDOMProcessParent? domProcess;
117 static WindowGlobalParent? getByInnerWindowId(unsigned long long innerWindowId);
120 * Get or create the JSWindowActor with the given name.
122 * See WindowActorOptions from JSWindowActor.webidl for details on how to
123 * customize actor creation.
126 JSWindowActorParent getActor(UTF8String name);
127 JSWindowActorParent? getExistingActor(UTF8String name);
130 * Renders a region of the frame into an image bitmap.
132 * @param rect Specify the area of the document to render, in CSS pixels,
133 * relative to the page. If null, the currently visible viewport is rendered.
134 * @param scale The scale to render the window at. Use devicePixelRatio
135 * to have comparable rendering to the OS.
136 * @param backgroundColor The background color to use.
137 * @param resetScrollPosition If true, temporarily resets the scroll position
138 * of the root scroll frame to 0, such that position:fixed elements are drawn
139 * at their initial position. This parameter only takes effect when passing a
142 * This API can only be used in the parent process, as content processes
143 * cannot access the rendering of out of process iframes. This API works
144 * with remote and local frames.
147 Promise<ImageBitmap> drawSnapshot(DOMRect? rect,
149 UTF8String backgroundColor,
150 optional boolean resetScrollPosition = false);
152 // True if any of the windows in the subtree rooted at this window
153 // has active peer connections. If this is called for a non-top-level
154 // context, it always returns false.
155 boolean hasActivePeerConnections();
158 [Exposed=Window, ChromeOnly]
159 interface WindowGlobalChild {
160 readonly attribute boolean isClosed;
161 readonly attribute boolean isInProcess;
162 readonly attribute BrowsingContext browsingContext;
163 readonly attribute WindowContext windowContext;
165 readonly attribute boolean isCurrentGlobal;
167 readonly attribute unsigned long long innerWindowId;
168 readonly attribute unsigned long long outerWindowId;
169 readonly attribute unsigned long long contentParentId;
171 // A WindowGlobalChild is the root in its process if it has no parent, or its
172 // embedder is in a different process.
173 readonly attribute boolean isProcessRoot;
175 // Is this WindowGlobalChild same-origin with `window.top`?
176 readonly attribute boolean sameOriginWithTop;
178 readonly attribute WindowGlobalParent? parentActor; // in-process only
180 static WindowGlobalChild? getByInnerWindowId(unsigned long long innerWIndowId);
182 BrowsingContext? findBrowsingContextWithName(DOMString name);
185 * Get or create the JSWindowActor with the given name.
187 * See WindowActorOptions from JSWindowActor.webidl for details on how to
188 * customize actor creation.
191 JSWindowActorChild getActor(UTF8String name);
192 JSWindowActorChild? getExistingActor(UTF8String name);