Name Description Size
BrowserSessionStore.webidl 1626
BrowsingContext.webidl Allowed CSS display modes. This needs to be kept in sync with similar values in ServoStyleConsts.h 15373
ChannelWrapper.webidl Load types that correspond to the external types in nsIContentPolicy.idl. Please also update that IDL when updating this list. 17446
ChildSHistory.webidl The ChildSHistory interface represents the child side of a browsing context's session history. 1203
ChromeNodeList.webidl 462
ChromeUtils.webidl An optimized QueryInterface method, generated by generateQI. For JS callers, this behaves like a normal QueryInterface function. When called with a supported interface, it returns its `this` object. When called with an unsupported interface, it throws NS_ERROR_NO_INTERFACE. C++ callers use a fast path, and never call the JSAPI or WebIDL methods of this object. 36777
ClonedErrorHolder.webidl A stub object to hold an Error, Exception, or DOMException object to be transferred via structured clone. The object will automatically be decoded directly into the type of the error object that it wraps. This is a temporary workaround for lack of native Error and Exception cloning support, and can be removed once bug 1556604 and bug 1561357 are fixed. 702
CommandEvent.webidl 393
ConsoleInstance.webidl 5801
CSSCustomPropertyRegisteredEvent.webidl 703
DebuggerNotification.webidl 1636
DebuggerNotificationObserver.webidl 1095
DebuggerUtils.webidl 566
DocumentL10n.webidl DocumentL10n is a public interface for handling DOM localization. In it's current form it exposes the DOMLocalization API which allows for localization-specific DOM operations on a defined localization context, and retrival of formatted localization messages out of that context. The context is created when `<link rel="localization"/>` elements are added to the document, and is removed in case all links of that type are removed from it. 2066
DOMCollectedFrames.webidl A single frame collected by the |CompositionRecorder|. 893
DominatorTree.webidl In a directed graph with a root node `R`, a node `A` is said to "dominate" a node `B` iff every path from `R` to `B` contains `A`. A node `A` is said to be the "immediate dominator" of a node `B` iff it dominates `B`, is not `B` itself, and does not dominate any other nodes which also dominate `B` in turn. If we take every node from a graph `G` and create a new graph `T` with edges to each node from its immediate dominator, then `T` is a tree (each node has only one immediate dominator, or none if it is the root). This tree is called a "dominator tree". This interface represents a dominator tree constructed from a HeapSnapshot's heap graph. The domination relationship and dominator trees are useful tools for analyzing heap graphs because they tell you: - Exactly what could be reclaimed by the GC if some node `A` became unreachable: those nodes which are dominated by `A`, - The "retained size" of a node in the heap graph, in contrast to its "shallow size". The "shallow size" is the space taken by a node itself, not counting anything it references. The "retained size" of a node is its shallow size plus the size of all the things that would be collected if the original node wasn't (directly or indirectly) referencing them. In other words, the retained size is the shallow size of a node plus the shallow sizes of every other node it dominates. For example, the root node in a binary tree might have a small shallow size that does not take up much space itself, but it dominates the rest of the binary tree and its retained size is therefore significant (assuming no external references into the tree). 3117
Flex.webidl These objects support visualization of flex containers by the dev tools. 2951
Fluent.webidl FluentMessage is a structure storing an unresolved L10nMessage, as returned by the Fluent Bundle. It stores a FluentPattern of the value and attributes, which can be then passed to bundle.formatPattern. 1734
FrameLoader.webidl Get the docshell from the frame loader. 7397
Grid.webidl These objects support visualization of a css-grid by the dev tools. 3718
HeapSnapshot.webidl A HeapSnapshot represents a snapshot of the heap graph 3810
ImageText.webidl Text that has been extracted from an image using an image recognition API. 948
InspectorUtils.webidl A collection of utility methods for use by devtools. See InspectorUtils.h for documentation on these methods. 11535
IOUtils.webidl IOUtils is a simple, efficient interface for performing file I/O from a privileged chrome-only context. All asynchronous I/O tasks are run on a background thread. Pending I/O tasks will block shutdown at the |profileBeforeChange| phase. During this shutdown phase, no additional I/O tasks will be accepted -- method calls to this interface will reject once shutdown has entered this phase. IOUtils methods may reject for any number of reasons. Reasonable attempts have been made to map each common operating system error to a |DOMException|. Most often, a caller only needs to check if a given file wasn't found by catching the rejected error and checking if | === 'NotFoundError'|. In other cases, it is likely sufficient to allow the error to be caught and reported elsewhere. 25216
IteratorResult.webidl A dictionary which represents the result of a call to a next() method on a JS iterator object. 545
JSActor.webidl Note that transfers are currently not supported by sendQuery. See Bug 1579536. 1753
JSProcessActor.webidl An actor architecture designed to allow compositional parent/content communications. The lifetime of a JSProcessActor{Child, Parent} is the `ContentParent` (for the parent-side) / `ContentChild` (for the child-side). 3241
JSWindowActor.webidl An actor architecture designed to allow compositional parent/content communications. The lifetime of a JSWindowActor{Child, Parent} is the `WindowGlobalParent` (for the parent-side) / `WindowGlobalChild` (for the child-side). See for more details on how to use this architecture. 6549
L10nOverlays.webidl 930
L10nRegistry.webidl A `ResourceId` refers to a localization resource that is either required or optional. The default for a `ResourceId` is that the resource is required. If a required resource is missing for a given locale, then the L10nRegistry will not generate a bundle for that locale, because the resource is required to be present in order for the bundle to be considered valid. If an optional resource is missing for a given locale, then the L10nRegistry will still generate a bundle for that locale, but entries for the missing optional resource will be missing in the bundle. It is recommended to only use this sparingly, since marking many resources as optional will increase the state space that the L10nRegistry solver has to cover, and it will have a negative impact on performance. We should also strive to have valid resources for all supported locales, so using optional resources should be reserved for exceptional circumstances such as experimental features and features under development. 6157
LoadURIOptions.webidl This dictionary holds load arguments for docshell loads. 3660
MatchGlob.webidl Represents a simple glob pattern matcher. Any occurrence of "*" in the glob pattern matches any literal string of characters in the string being compared. Additionally, if created with `allowQuestion = true`, any occurrence of "?" in the glob matches any single literal character. 856
MatchPattern.webidl A URL match pattern as used by the WebExtension and Chrome extension APIs. A match pattern is a string with one of the following formats: - "<all_urls>" The literal string "<all_urls>" matches any URL with a supported protocol. - <proto>://<host>/<path> A URL pattern with the following placeholders: - <proto> The protocol to match, or "*" to match either "http" or "https". - <host> The hostname to match. May be either a complete, literal hostname to match a specific host, the wildcard character "*", to match any host, or a subdomain pattern, with "*." followed by a domain name, to match that domain name or any subdomain thereof. - <path> A glob pattern for paths to match. A "*" may appear anywhere within the path, and will match any string of characters. If no "*" appears, the URL path must exactly match the pattern path. 4730
MediaController.webidl This enum lists all supported behaviors on the media controller. 2271
MessageManager.webidl 19049 3954
MozDocumentObserver.webidl 710
MozSharedMap.webidl Sets the given key to the given structured-clonable value. The value is synchronously structured cloned, and the serialized value is saved in the map. Unless flush() is called, the new value will be broadcast to content processes after a short delay. 1516
MozStorageAsyncStatementParams.webidl 612
MozStorageStatementParams.webidl 607
MozStorageStatementRow.webidl 394
NetDashboard.webidl 3452
PathUtils.webidl PathUtils is a set of utilities for operating on absolute paths. 4390
PermissionSetParameters.webidl 687
PlacesEvent.webidl data: PlacesVisit. Fired whenever a page is visited. 16104
PlacesObservers.webidl 1430
PluginCrashedEvent.webidl 976
PopupPositionedEvent.webidl Returns the alignment position where the popup has appeared relative to its anchor node or point, accounting for any flipping that occurred. 1108
PrecompiledScript.webidl If `reportExceptions` is set to true and any exception happens while executing the script, the exceptions will automatically be logged in the console. This helps log the exception with the right global innerWindowID and make it display in the right DevTools console. 1489
PromiseDebugging.webidl This is a utility namespace for promise-debugging functionality 3683
SessionStoreUtils.webidl A callback passed to SessionStoreUtils.forEachNonDynamicChildFrame(). 6141
StripOnShareRule.webidl This dictionary is used for the strip on share feature. It stores a list of query parameters and a list of sites for which the query parameters are stripped 590
StructuredCloneHolder.webidl A holder for structured-clonable data which can itself be cloned with little overhead, and deserialized into an arbitrary global. 1637
StyleSheetApplicableStateChangeEvent.webidl 718
StyleSheetRemovedEvent.webidl 604
TelemetryStopwatch.webidl Starts a timer associated with a telemetry histogram. The timer can be directly associated with a histogram, or with a pair of a histogram and an object. @param histogram - a string which must be a valid histogram name. @param obj - Optional parameter. If specified, the timer is associated with this object, meaning that multiple timers for the same histogram may be run concurrently, as long as they are associated with different objects. @param [options.inSeconds=false] - record elapsed time for this histogram in seconds instead of milliseconds. Defaults to false. @returns True if the timer was successfully started, false otherwise. If a timer already exists, it can't be started again, and the existing one will be cleared in order to avoid measurements errors. 9873
TreeColumn.webidl Returns the previous displayed column, if any, accounting for the ordinals set on the columns. 994
TreeColumns.webidl The tree widget for these columns. 1254
TreeContentView.webidl Retrieve the content item associated with the specified row. 627
TreeView.webidl The total number of rows in the tree (including the offscreen rows). 5740
UniFFI.webidl 4400
UserInteraction.webidl Starts a timer associated with a UserInteraction ID. The timer can be directly associated with a UserInteraction ID, or with a pair of a UserInteraction ID and an object. @param id - the interaction being recorded, as declared in UserInteractions.yaml. This is also the annotation key that will be set in the BHR hang report if a hang occurs before the UserInteraction is finished. @param value - a value to be set on the key in the event that a hang occurs when the timer is running. This value is limited to 50 characters to avoid abuse, and if the value exceeds that limit then no timer is started, an error is printed, and this function returns false. @param obj - Optional parameter. If specified, the timer is associated with this object, meaning that multiple timers for the same annotation key may be run concurrently, as long as they are associated with different objects. @returns True if the timer was successfully started, false otherwise. If a timer already exists, it will be overwritten, and the new timer will include a "(clobbered)" suffix in any BHR annotations that get created. 4449
WebExtensionContentScript.webidl Returns true if the script's match and exclude patterns match the given URI, without reference to attributes such as `allFrames`. 6491
WebExtensionPolicy.webidl Defines the platform-level policies for a WebExtension, including its permissions and the characteristics of its moz-extension: URLs. 10722
WidevineCDMManifest.webidl 631
WindowGlobalActors.webidl Partially determines whether script execution is allowed in this BrowsingContext. Script execution will be permitted only if this attribute is true and script execution is allowed in the owner BrowsingContext. May only be set in the context's owning process. 8090
WindowRoot.webidl 357
WindowsJumpListShortcutDescription.webidl A WindowsJumpListShortcutDescription is a structure that describes an entry to be created in the Windows Jump List. Both tasks, as well as custom items can be described using this structure. nsIJumpListBuilder.populateJumpList accepts arrays of these structures. 1489
XULCommandEvent.webidl This interface is supported by command events, which are dispatched to XUL elements as a result of mouse or keyboard activation. 2137
XULElement.webidl 1598
XULFrameElement.webidl The optional open window information provided by the window creation code and used to initialize a new browser. 954
XULMenuElement.webidl 560
XULPopupElement.webidl Open the popup relative to a specified node at a specific location. If the popup is already open, calling this method has no effect. The popup may be either anchored to another node or opened freely. To anchor a popup to a node, supply an anchor node and set the position to a string indicating the manner in which the popup should be anchored. Possible values for position are: before_start, before_end, after_start, after_end, start_before, start_after, end_before, end_after, overlap, after_pointer The anchor node does not need to be in the same document as the popup. If the attributesOverride argument is true, the popupanchor, popupalign and position attributes on the popup node override the position value argument. If attributesOverride is false, the attributes are only used if position is empty. For an anchored popup, the x and y arguments may be used to offset the popup from its anchored position by some distance, measured in CSS pixels. x increases to the right and y increases down. Negative values may also be used to move to the left and upwards respectively. Unanchored popups may be created by supplying null as the anchor node. An unanchored popup appears at the position specified by x and y, relative to the viewport of the document containing the popup node. In this case, position and attributesOverride are ignored. @param anchorElement the node to anchor the popup to, may be null @param options either options to use, or a string position @param x horizontal offset @param y vertical offset @param isContextMenu true for context menus, false for other popups @param attributesOverride true if popup node attributes override position @param triggerEvent the event that triggered this popup (mouse click for example) 7974
XULResizerElement.webidl 396
XULTextElement.webidl 488
XULTreeElement.webidl Obtain the columns. 4881