1 /* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #include
"domstubs.idl"
8 #include
"nsIDocShellTreeItem.idl"
9 #include
"nsIRequest.idl"
12 #include
"js/TypeDecls.h"
13 #include
"mozilla/Maybe.h"
14 #include
"mozilla/NotNull.h"
15 #include
"mozilla/UniquePtr.h"
18 class nsCommandManager
;
20 class nsDocShellLoadState
;
26 class BrowsingContext
;
33 * The nsIDocShell interface.
36 [ptr] native nsPresContext
(nsPresContext
);
37 [ptr] native nsCommandManager
(nsCommandManager
);
38 [ptr] native PresShell
(mozilla
::PresShell
);
39 [ref] native MaybeURI
(mozilla
::Maybe<nsCOMPtr
<nsIURI
>>);
40 [ref] native Encoding
(const mozilla
::Encoding
*);
41 native UniqueClientSource
(mozilla
::UniquePtr
<mozilla
::dom
::ClientSource
>);
45 interface nsIContentSecurityPolicy
;
46 interface nsIDocumentViewer
;
48 interface nsIEditingSession
;
49 interface nsIInputStream
;
52 interface nsILayoutHistoryState
;
53 interface nsISecureBrowserUI
;
54 interface nsIScriptGlobalObject
;
55 interface nsIStructuredCloneContainer
;
56 interface nsIDOMStorage
;
57 interface nsIPrincipal
;
58 interface nsIPrivacyTransitionObserver
;
59 interface nsIReflowObserver
;
60 interface nsIScrollObserver
;
61 interface nsIRemoteTab
;
62 interface nsIBrowserChild
;
63 interface nsICommandParams
;
64 interface nsILoadURIDelegate
;
65 native BrowserChildRef
(already_AddRefed
<nsIBrowserChild
>);
66 native nsDocShellLoadStatePtr
(nsDocShellLoadState
*);
68 webidl BrowsingContext
;
69 webidl ContentFrameMessageManager
;
74 * nsIDocShell is an interface corresponding to the native nsDocShell object,
75 * which is a legacy in-process object roughly corresponding to a 'browsing
76 * context', as created for a browser tab or an iframe, for example.
78 * nsIDocShell has a 1:1 relationship with its paired dom::BrowsingContext and
79 * nsGlobalWindowOuter. It may be replaced during navigation.
81 * See also the comment documenting dom::BrowsingContext and the documentation
84 * https://html.spec.whatwg.org/multipage/document-sequences.html#browsing-context
85 * https://firefox-source-docs.mozilla.org/dom/navigation/embedding.html
86 * https://firefox-source-docs.mozilla.org/dom/navigation/nav_replace.html
88 [scriptable
, builtinclass
, uuid(049234fe
-da10
-478b
-bc5d
-bc6f9a1ba63d
)]
89 interface nsIDocShell
: nsIDocShellTreeItem
91 void setCancelContentJSEpoch
(in long aEpoch
);
94 * Loads a given URI. This will give priority to loading the requested URI
95 * in the object implementing this interface. If it can't be loaded here
96 * however, the URL dispatcher will go through its normal process of content
99 * @param aLoadState This is the extended load info for this load.
100 * @param aSetNavigating If we should set isNavigating to true while initiating
103 [noscript
]void loadURI
(in nsDocShellLoadStatePtr aLoadState
, in boolean aSetNavigating
);
106 * Do either a history.pushState() or history.replaceState() operation,
107 * depending on the value of aReplace.
110 void addState
(in jsval aData
, in AString aTitle
,
111 in AString aURL
, in boolean aReplace
);
114 * Reset state to a new content model within the current document and the document
115 * viewer. Called by the document before initiating an out of band document.write().
117 void prepareForNewContentModel
();
120 * Helper for the session store to change the URI associated with the
123 void setCurrentURIForSessionStore
(in nsIURI aURI
);
126 * Notify the associated content viewer and all child docshells that they are
127 * about to be hidden. If |isUnload| is true, then the document is being
128 * unloaded and all dynamic subframe history entries are removed as well.
131 * True to fire the unload event in addition to the pagehide event,
132 * and remove all dynamic subframe history entries.
134 [noscript
] void firePageHideNotification
(in boolean isUnload
);
137 * Presentation context for the currently loaded document. This may be null.
139 [notxpcom
,nostdcall
] readonly attribute nsPresContext presContext
;
142 * Presentation shell for the currently loaded document. This may be null.
144 [notxpcom
,nostdcall
] readonly attribute PresShell presShell
;
147 * Presentation shell for the oldest document, if this docshell is
148 * currently transitioning between documents.
150 [notxpcom
,nostdcall
] readonly attribute PresShell eldestPresShell
;
153 * Document Viewer that is currently loaded for this DocShell. This may
154 * change as the underlying content changes.
156 [infallible
] readonly attribute nsIDocumentViewer docViewer
;
159 * Get the id of the outer window that is or will be in this docshell.
161 [infallible
] readonly attribute
unsigned long long outerWindowID
;
164 * This attribute allows chrome to tie in to handle DOM events that may
165 * be of interest to chrome.
167 attribute EventTarget chromeEventHandler
;
170 * This allows chrome to set a custom User agent on a specific docshell
172 attribute AString customUserAgent
;
175 * Whether CSS error reporting is enabled.
177 attribute
boolean cssErrorReportingEnabled
;
180 * Attribute stating if refresh based redirects can be allowed
182 attribute
boolean allowMetaRedirects
;
185 * Attribute stating if it should allow subframes (framesets/iframes) or not
187 attribute
boolean allowSubframes
;
190 * Attribute stating whether or not images should be loaded.
192 attribute
boolean allowImages
;
195 * Attribute stating whether or not media (audio/video) should be loaded.
197 [infallible
] attribute
boolean allowMedia
;
200 * Attribute that determines whether DNS prefetch is allowed for this subtree
201 * of the docshell tree. Defaults to true. Setting this will make it take
202 * effect starting with the next document loaded in the docshell.
204 attribute
boolean allowDNSPrefetch
;
207 * Attribute that determines whether window control (move/resize) is allowed.
209 attribute
boolean allowWindowControl
;
212 * True if the docshell allows its content to be handled by a content listener
213 * other than the docshell itself, including the external helper app service,
214 * and false otherwise. Defaults to true.
216 [infallible
] attribute
boolean allowContentRetargeting
;
219 * True if new child docshells should allow content retargeting.
220 * Setting allowContentRetargeting also overwrites this value.
222 [infallible
] attribute
boolean allowContentRetargetingOnChildren
;
225 * Get an array of this docShell and its children.
227 * @param aItemType - Only include docShells of this type, or if typeAll,
228 * include all child shells.
229 * Uses types from nsIDocShellTreeItem.
230 * @param aDirection - Whether to enumerate forwards or backwards.
233 cenum DocShellEnumeratorDirection
: 8 {
234 ENUMERATE_FORWARDS
= 0,
235 ENUMERATE_BACKWARDS
= 1
238 Array
<nsIDocShell
> getAllDocShellsInSubtree
(in long aItemType
,
239 in nsIDocShell_DocShellEnumeratorDirection aDirection
);
242 * The type of application that created this window.
244 * DO NOT DELETE, see bug 176166. For firefox, this value will always be
245 * UNKNOWN. However, it is used heavily in Thunderbird/comm-central and we
246 * don't really have a great replacement at the moment, so we'll just leave it
250 APP_TYPE_UNKNOWN
= 0,
255 [infallible
] attribute nsIDocShell_AppType appType
;
258 * certain docshells (like the message pane)
259 * should not throw up auth dialogs
260 * because it can act as a password trojan
262 attribute
boolean allowAuth
;
265 * Set/Get the document scale factor. When setting this attribute, a
266 * NS_ERROR_NOT_IMPLEMENTED error may be returned by implementations
267 * not supporting zoom. Implementations not supporting zoom should return
268 * 1.0 all the time for the Get operation. 1.0 by the way is the default
269 * of zoom. This means 100% of normal scaling or in other words normal size
272 attribute
float zoom
;
275 * Tells the docshell to offer focus to its tree owner.
276 * This is currently only necessary for embedding chrome.
277 * If forDocumentNavigation is true, then document navigation should be
278 * performed, where only the root of documents are selected. Otherwise, the
279 * next element in the parent should be returned. Returns true if focus was
280 * successfully taken by the tree owner.
282 bool tabToTreeOwner
(in boolean forward
, in boolean forDocumentNavigation
);
285 * Current busy state for DocShell
287 cenum BusyFlags
: 8 {
290 BUSY_FLAGS_BEFORE_PAGE_LOAD
= 2,
291 BUSY_FLAGS_PAGE_LOADING
= 4,
294 [infallible
] readonly attribute nsIDocShell_BusyFlags busyFlags
;
297 * Load commands for the document
299 cenum LoadCommand
: 8 {
300 LOAD_CMD_NORMAL
= 0x1, // Normal load
301 LOAD_CMD_RELOAD
= 0x2, // Reload
302 LOAD_CMD_HISTORY
= 0x4, // Load from history
303 LOAD_CMD_PUSHSTATE
= 0x8, // History.pushState()
307 * Attribute to access the loadtype for the document. LoadType Enum is
308 * defined in nsDocShellLoadTypes.h
310 [infallible
] attribute
unsigned long loadType
;
313 * Default load flags (as defined in nsIRequest) that will be set on all
314 * requests made by this docShell and propagated to all child docShells and
315 * to nsILoadGroup::defaultLoadFlags for the docShell's loadGroup.
316 * Default is no flags. Once set, only future requests initiated by the
317 * docShell are affected, so in general, these flags should be set before
318 * the docShell loads any content.
320 attribute nsLoadFlags defaultLoadFlags
;
323 * returns true if the docshell is being destroyed, false otherwise
325 boolean isBeingDestroyed
();
328 * Returns true if the docshell is currently executing the onLoad Handler
330 readonly attribute
boolean isExecutingOnLoadHandler
;
332 attribute nsILayoutHistoryState layoutHistoryState
;
335 * Object used to delegate URI loading to an upper context.
336 * Currently only set for GeckoView to allow handling of load requests
337 * at the application level.
339 readonly attribute nsILoadURIDelegate loadURIDelegate
;
342 * Cancel the XPCOM timers for each meta-refresh URI in this docshell,
343 * and this docshell's children, recursively. The meta-refresh timers can be
344 * restarted using resumeRefreshURIs(). If the timers are already suspended,
345 * this has no effect.
347 void suspendRefreshURIs
();
350 * Restart the XPCOM timers for each meta-refresh URI in this docshell,
351 * and this docshell's children, recursively. If the timers are already
352 * running, this has no effect.
354 void resumeRefreshURIs
();
357 * Begin firing WebProgressListener notifications for restoring a page
358 * presentation. |viewer| is the content viewer whose document we are
359 * starting to load. If null, it defaults to the docshell's current content
360 * viewer, creating one if necessary. |top| should be true for the toplevel
361 * docshell that is being restored; it will be set to false when this method
362 * is called for child docshells. This method will post an event to
363 * complete the simulated load after returning to the event loop.
365 void beginRestore
(in nsIDocumentViewer viewer
, in boolean top
);
368 * Finish firing WebProgressListener notifications and DOM events for
369 * restoring a page presentation. This should only be called via
372 void finishRestore
();
374 void clearCachedUserAgent
();
376 void clearCachedPlatform
();
378 /* Track whether we're currently restoring a document presentation. */
379 readonly attribute
boolean restoringDocument
;
381 /* attribute to access whether error pages are enabled */
382 attribute
boolean useErrorPages
;
385 * Display a load error in a frame while keeping that frame's currentURI
386 * pointing correctly to the page where the error ocurred, rather than to
387 * the error document page. You must provide either the aURI or aURL parameter.
389 * @param aError The error code to be displayed
390 * @param aURI nsIURI of the page where the error happened
391 * @param aURL wstring of the page where the error happened
392 * @param aFailedChannel The channel related to this error
394 * Returns whether or not we displayed an error page (note: will always
395 * return false if in-content error pages are disabled!)
397 boolean displayLoadError
(in nsresult aError
,
400 [optional] in nsIChannel aFailedChannel
);
403 * The channel that failed to load and resulted in an error page.
404 * May be null. Relevant only to error pages.
406 readonly attribute nsIChannel failedChannel
;
409 * Keeps track of the previous nsISHEntry index and the current
410 * nsISHEntry index at the time that the doc shell begins to load.
411 * Used for ContentViewer eviction.
413 readonly attribute
long previousEntryIndex
;
414 readonly attribute
long loadedEntryIndex
;
417 * Notification that entries have been removed from the beginning of a
418 * nsSHistory which has this as its rootDocShell.
420 * @param numEntries - The number of entries removed
422 void historyPurged
(in long numEntries
);
425 * Gets the channel for the currently loaded document, if any.
426 * For a new document load, this will be the channel of the previous document
427 * until after OnLocationChange fires.
429 readonly attribute nsIChannel currentDocumentChannel
;
432 * Find out whether the docshell is currently in the middle of a page
433 * transition. This is set just before the pagehide/unload events fire.
435 [infallible
] readonly attribute
boolean isInUnload
;
438 * Disconnects this docshell's editor from its window, and stores the
439 * editor data in the open document's session history entry. This
440 * should be called only during page transitions.
442 [noscript
, notxpcom
] void DetachEditorFromWindow
();
445 * Propagated to the print preview document viewer. Must only be called on
446 * a document viewer that has been initialized for print preview.
448 void exitPrintPreview
();
451 * The ID of the docshell in the session history.
453 readonly attribute nsIDRef historyID
;
456 * Helper method for accessing this value from C++
458 [noscript
, notxpcom
] nsIDRef HistoryID
();
461 * Create a new about:blank document and content viewer.
462 * @param aPrincipal the principal to use for the new document.
463 * @param aPartitionedPrincipal the partitioned principal to use for the new
465 * @param aCsp the CSP to use for the new document.
467 void createAboutBlankDocumentViewer
(in nsIPrincipal aPrincipal
,
468 in nsIPrincipal aPartitionedPrincipal
,
469 [optional] in nsIContentSecurityPolicy aCSP
);
472 * Upon getting, returns the canonical encoding label of the document
473 * currently loaded into this docshell.
475 readonly attribute ACString charset
;
477 void forceEncodingDetection
();
480 * In a child docshell, this is the charset of the parent docshell
482 [noscript
, notxpcom
, nostdcall
] void setParentCharset
(
483 in Encoding parentCharset
,
484 in int32_t parentCharsetSource
,
485 in nsIPrincipal parentCharsetPrincipal
);
486 [noscript
, notxpcom
, nostdcall
] void getParentCharset
(
487 out Encoding parentCharset
,
488 out int32_t parentCharsetSource
,
489 out nsIPrincipal parentCharsetPrincipal
);
492 * Return a DOMHighResTimeStamp representing the number of
493 * milliseconds from an arbitrary point in time. The reference
494 * point is shared by all DocShells and is also used by timestamps
497 DOMHighResTimeStamp now
();
500 * Add an observer to the list of parties to be notified when this docshell's
501 * private browsing status is changed. |obs| must support weak references.
503 void addWeakPrivacyTransitionObserver
(in nsIPrivacyTransitionObserver obs
);
506 * Add an observer to the list of parties to be notified when reflows are
507 * occurring. |obs| must support weak references.
509 void addWeakReflowObserver
(in nsIReflowObserver obs
);
512 * Remove an observer from the list of parties to be notified about reflows.
514 void removeWeakReflowObserver
(in nsIReflowObserver obs
);
517 * Notify all attached observers that a reflow has just occurred.
519 * @param interruptible if true, the reflow was interruptible.
520 * @param start timestamp when reflow started, in milliseconds since
521 * navigationStart (accurate to 1/1000 of a ms)
522 * @param end timestamp when reflow ended, in milliseconds since
523 * navigationStart (accurate to 1/1000 of a ms)
525 [noscript
] void notifyReflowObservers
(in bool interruptible
,
526 in DOMHighResTimeStamp start
,
527 in DOMHighResTimeStamp end
);
530 * Add an observer to the list of parties to be notified when scroll position
531 * of some elements is changed.
533 [noscript
] void addWeakScrollObserver
(in nsIScrollObserver obs
);
536 * Add an observer to the list of parties to be notified when scroll position
537 * of some elements is changed.
539 [noscript
] void removeWeakScrollObserver
(in nsIScrollObserver obs
);
542 * Notify all attached observers that the scroll position of some element
545 [noscript
] void notifyScrollObservers
();
548 * Returns true if this docshell is the top level content docshell.
550 [infallible
] readonly attribute
boolean isTopLevelContentDocShell
;
553 * True iff asynchronous panning and zooming is enabled for this
556 readonly attribute bool asyncPanZoomEnabled
;
559 * Indicates whether the UI may enable the character encoding menu. The UI
560 * must disable the menu when this property is false.
562 [infallible
] readonly attribute
boolean mayEnableCharacterEncodingMenu
;
564 attribute nsIEditor editor
;
565 readonly attribute
boolean editable
; /* this docShell is editable */
566 readonly attribute
boolean hasEditingSession
; /* this docShell has an editing session */
569 * Make this docShell editable, setting a flag that causes
570 * an editor to get created, either immediately, or after
571 * a url has been loaded.
572 * @param inWaitForUriLoad true to wait for a URI before
573 * creating the editor.
575 void makeEditable
(in boolean inWaitForUriLoad
);
578 * Returns false for mLSHE, true for mOSHE
580 boolean getCurrentSHEntry
(out nsISHEntry aEntry
);
583 * Cherry picked parts of nsIController.
584 * They are here, because we want to call these functions
587 boolean isCommandEnabled
(in string command
);
589 void doCommand
(in string command
);
591 void doCommandWithParams
(in string command
, in nsICommandParams aParams
);
594 * Invisible DocShell are dummy construct to simulate DOM windows
595 * without any actual visual representation. They have to be marked
596 * at construction time, to avoid any painting activity.
598 [noscript
, notxpcom
] bool IsInvisible
();
599 [noscript
, notxpcom
] void SetInvisible
(in bool aIsInvisibleDocshell
);
602 * Get the script global for the document in this docshell.
604 [noscript
,notxpcom
,nostdcall
] nsIScriptGlobalObject GetScriptGlobalObject
();
606 [noscript
,notxpcom
,nostdcall
] Document getExtantDocument
();
609 * This attribute determines whether a document which is not about:blank has
610 * already be loaded by this docShell.
612 [infallible
] readonly attribute
boolean hasLoadedNonBlankURI
;
615 * Allow usage of -moz-window-dragging:drag for content docshells.
616 * True for top level chrome docshells. Throws if set to false with
617 * top level chrome docshell.
619 attribute
boolean windowDraggingAllowed
;
622 * Sets/gets the current scroll restoration mode.
623 * @see https://html.spec.whatwg.org/#dom-history-scroll-restoration
625 attribute
boolean currentScrollRestorationIsManual
;
628 * Setter and getter for the origin attributes living on this docshell.
631 jsval getOriginAttributes
();
634 void setOriginAttributes
(in jsval aAttrs
);
637 * The editing session for this docshell.
639 readonly attribute nsIEditingSession editingSession
;
642 * The browser child for this docshell.
644 [binaryname
(ScriptableBrowserChild
)] readonly attribute nsIBrowserChild browserChild
;
645 [noscript
,notxpcom
,nostdcall
] BrowserChildRef GetBrowserChild
();
647 [noscript
,nostdcall
,notxpcom
] nsCommandManager GetCommandManager
();
649 cenum MetaViewportOverride
: 8 {
651 * Override platform/pref default behaviour and force-disable support for
652 * <meta name="viewport">.
654 META_VIEWPORT_OVERRIDE_DISABLED
= 0,
656 * Override platform/pref default behaviour and force-enable support for
657 * <meta name="viewport">.
659 META_VIEWPORT_OVERRIDE_ENABLED
= 1,
661 * Don't override the platform/pref default behaviour for support for
662 * <meta name="viewport">.
664 META_VIEWPORT_OVERRIDE_NONE
= 2,
668 * This allows chrome to override the default choice of whether the
669 * <meta name="viewport"> tag is respected in a specific docshell.
670 * Possible values are listed above.
672 [infallible
, setter_can_run_script
] attribute nsIDocShell_MetaViewportOverride metaViewportOverride
;
675 * Attribute that determines whether tracking protection is enabled.
677 attribute
boolean useTrackingProtection
;
680 * Fire a dummy location change event asynchronously.
682 [noscript
] void dispatchLocationChangeEvent
();
686 * Start delayed autoplay media which are in the current document.
688 [noscript
] void startDelayedAutoplayMediaComponents
();
691 * Take ownership of the ClientSource representing an initial about:blank
692 * document that was never needed. As an optimization we avoid creating
693 * this document if no code calls GetDocument(), but we still need a
694 * ClientSource object to represent the about:blank window. This may return
695 * nullptr; for example if the docshell has created a real window and document
698 [noscript
, nostdcall
, notxpcom
]
699 UniqueClientSource TakeInitialClientSource
();
701 void setColorMatrix
(in Array
<float> aMatrix
);
704 * Returns true if the current load is a forced reload,
705 * e.g. started by holding shift whilst triggering reload.
707 readonly attribute bool isForceReloading
;
709 Array
<float> getColorMatrix
();
713 * These methods call nsDocShell::GetHTMLEditorInternal() and
714 * nsDocShell::SetHTMLEditorInternal() with static_cast.
716 mozilla
::HTMLEditor
* GetHTMLEditor
();
717 nsresult SetHTMLEditor
(mozilla
::HTMLEditor
* aHTMLEditor
);
721 * The message manager for this docshell. This does not throw, but
722 * can return null if the docshell has no message manager.
724 [infallible
] readonly attribute ContentFrameMessageManager messageManager
;
727 * This returns a Promise which resolves to a boolean. True when the
728 * document has Tracking Content that has been blocked from loading, false
731 Promise getHasTrackingContentBlocked
();
734 * Return whether this docshell is "attempting to navigate" in the
735 * sense that's relevant to document.open.
737 [notxpcom
, nostdcall
] readonly attribute
boolean isAttemptingToNavigate
;
740 * Whether or not this docshell is executing a nsIWebNavigation navigation
743 * This will be true when the following methods are executing:
744 * nsIWebNavigation.binaryLoadURI
745 * nsIWebNavigation.goBack
746 * nsIWebNavigation.goForward
747 * nsIWebNavigation.gotoIndex
748 * nsIWebNavigation.loadURI
750 [infallible
] readonly attribute
boolean isNavigating
;
753 * @see nsISHEntry synchronizeLayoutHistoryState().
755 void synchronizeLayoutHistoryState
();
758 * This attempts to save any applicable layout history state (like
759 * scroll position) in the nsISHEntry. This is normally done
760 * automatically when transitioning from page to page in the
761 * same process. We expose this function to support transitioning
762 * from page to page across processes as a workaround for bug 1630234
763 * until session history state is moved into the parent process.
765 void persistLayoutHistoryState
();