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312 lines
10 KiB
Plaintext
312 lines
10 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsFrameLoader;
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interface nsIDocShell;
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interface nsIURI;
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interface nsIFrame;
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interface nsSubDocumentFrame;
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interface nsIMessageSender;
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interface nsIVariant;
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interface nsIDOMElement;
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interface nsITabParent;
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interface nsILoadContext;
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typedef unsigned long long nsContentViewId;
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/**
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* These interfaces do *not* scroll or scale the content document;
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* instead they set a "goal" scroll/scale wrt the current content
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* view. When the content document is painted, the scroll*
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* attributes are used to set a compensating transform. If the
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* metrics of the content document's current pixels don't match the
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* view config, the transform matrix may need to translate
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* content pixels and/or perform a "fuzzy-scale" that doesn't
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* re-rasterize fonts or intelligently resample images.
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*
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* The attrs are allowed to transform content pixels in
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* such a way that the <browser>'s visible rect encloses pixels that
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* the content document does not (yet) define.
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*
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* The view scroll values are in units of chrome-document CSS
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* pixels.
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*
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* These APIs are designed to be used with nsIDOMWindowUtils
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* setDisplayPort() and setResolution().
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*/
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[scriptable, uuid(c04c5c40-fa2a-4e9c-94f5-b362a10a86cb)]
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interface nsIContentView : nsISupports
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{
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/**
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* Scroll view to or by the given chrome-document CSS pixels.
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* Fails if the view is no longer valid.
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*/
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void scrollTo(in float xPx, in float yPx);
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void scrollBy(in float dxPx, in float dyPx);
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void setScale(in float xScale, in float yScale);
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/**
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* Scroll offset in chrome-document CSS pixels.
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*
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* When this view is active (i.e. it is being painted because it's in the
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* visible region of the screen), this value is at first lined up with the
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* content's scroll offset.
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*
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* Note that when this view becomes inactive, the new content view will have
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* scroll values that are reset to the default!
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*/
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readonly attribute float scrollX;
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readonly attribute float scrollY;
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/**
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* Dimensions of the viewport in chrome-document CSS pixels.
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*/
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readonly attribute float viewportWidth;
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readonly attribute float viewportHeight;
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/**
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* Dimensions of scrolled content in chrome-document CSS pixels.
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*/
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readonly attribute float contentWidth;
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readonly attribute float contentHeight;
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/**
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* ID that can be used in conjunction with nsIDOMWindowUtils to change
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* the actual document, instead of just how it is transformed.
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*/
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readonly attribute nsContentViewId id;
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};
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[scriptable, uuid(ba5af90d-ece5-40b2-9a1d-a0154128db1c)]
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interface nsIContentViewManager : nsISupports
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{
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/**
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* Retrieve view scrolling/scaling interfaces in a given area,
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* used to support asynchronous re-paints of content pixels.
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* These interfaces are only meaningful for <browser>.
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*
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* Pixels are in chrome device pixels and are relative to the browser
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* element.
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*
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* @param aX x coordinate that will be in target rectangle
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* @param aY y coordinate that will be in target rectangle
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* @param aTopSize How much to expand up the rectangle
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* @param aRightSize How much to expand right the rectangle
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* @param aBottomSize How much to expand down the rectangle
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* @param aLeftSize How much to expand left the rectangle
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*/
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void getContentViewsIn(in float aXPx, in float aYPx,
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in float aTopSize, in float aRightSize,
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in float aBottomSize, in float aLeftSize,
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[optional] out unsigned long aLength,
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[retval, array, size_is(aLength)] out nsIContentView aResult);
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/**
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* The root content view.
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*/
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readonly attribute nsIContentView rootContentView;
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};
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[scriptable, builtinclass, uuid(4c9f91c0-7a5d-11e3-981f-0800200c9a66)]
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interface nsIFrameLoader : nsISupports
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{
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/**
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* Get the docshell from the frame loader.
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*/
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readonly attribute nsIDocShell docShell;
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/**
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* Get this frame loader's TabParent, if it has a remote frame. Otherwise,
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* returns null.
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*/
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readonly attribute nsITabParent tabParent;
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/**
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* Get an nsILoadContext for the top-level docshell. For remote
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* frames, a shim is returned that contains private browsing and app
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* information.
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*/
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readonly attribute nsILoadContext loadContext;
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/**
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* Start loading the frame. This method figures out what to load
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* from the owner content in the frame loader.
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*/
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void loadFrame();
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/**
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* Loads the specified URI in this frame. Behaves identically to loadFrame,
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* except that this method allows specifying the URI to load.
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*/
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void loadURI(in nsIURI aURI);
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/**
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* Destroy the frame loader and everything inside it. This will
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* clear the weak owner content reference.
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*/
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void destroy();
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/**
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* Find out whether the loader's frame is at too great a depth in
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* the frame tree. This can be used to decide what operations may
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* or may not be allowed on the loader's docshell.
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*/
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readonly attribute boolean depthTooGreat;
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/**
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* Updates the position and size of the subdocument loaded by this frameloader.
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*
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* @param aIFrame The nsIFrame for the content node that owns this frameloader
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*/
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[noscript] void updatePositionAndSize(in nsSubDocumentFrame aIFrame);
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/**
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* Activate remote frame.
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* Throws an exception with non-remote frames.
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*/
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void activateRemoteFrame();
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/**
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* Deactivate remote frame.
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* Throws an exception with non-remote frames.
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*/
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void deactivateRemoteFrame();
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/**
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* @see nsIDOMWindowUtils sendMouseEvent.
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*/
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void sendCrossProcessMouseEvent(in AString aType,
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in float aX,
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in float aY,
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in long aButton,
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in long aClickCount,
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in long aModifiers,
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[optional] in boolean aIgnoreRootScrollFrame);
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/**
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* Activate event forwarding from client (remote frame) to parent.
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*/
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void activateFrameEvent(in AString aType, in boolean capture);
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// Note, when frameloaders are swapped, also messageManagers are swapped.
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readonly attribute nsIMessageSender messageManager;
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/**
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* @see nsIDOMWindowUtils sendKeyEvent.
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*/
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void sendCrossProcessKeyEvent(in AString aType,
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in long aKeyCode,
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in long aCharCode,
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in long aModifiers,
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[optional] in boolean aPreventDefault);
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attribute boolean delayRemoteDialogs;
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/**
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* The default rendering mode is synchronous scrolling. In this
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* mode, it's an error to try to set a target viewport.
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*/
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const unsigned long RENDER_MODE_DEFAULT = 0x00000000;
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/**
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* When asynchronous scrolling is enabled, a target viewport can be
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* set to transform content pixels wrt its CSS viewport.
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*
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* NB: when async scrolling is enabled, it's the *user's*
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* responsibility to update the target scroll offset. In effect,
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* the platform hands over control of scroll offset to the user.
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*/
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const unsigned long RENDER_MODE_ASYNC_SCROLL = 0x00000001;
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attribute unsigned long renderMode;
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/**
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* The default event mode automatically forwards the events
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* handled in nsEventStateManager::HandleCrossProcessEvent to
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* the child content process when these events are targeted to
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* the remote browser element.
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*
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* Used primarly for input events (mouse, keyboard)
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*/
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const unsigned long EVENT_MODE_NORMAL_DISPATCH = 0x00000000;
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/**
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* With this event mode, it's the application's responsability to
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* convert and forward events to the content process
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*/
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const unsigned long EVENT_MODE_DONT_FORWARD_TO_CHILD = 0x00000001;
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attribute unsigned long eventMode;
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/**
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* If false, then the subdocument is not clipped to its CSS viewport, and the
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* subdocument's viewport scrollbar(s) are not rendered.
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* Defaults to true.
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*/
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attribute boolean clipSubdocument;
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/**
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* If false, then the subdocument's scroll coordinates will not be clamped
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* to their scroll boundaries.
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* Defaults to true.
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*/
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attribute boolean clampScrollPosition;
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/**
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* The element which owns this frame loader.
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*
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* For example, if this is a frame loader for an <iframe>, this attribute
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* returns the iframe element.
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*/
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readonly attribute nsIDOMElement ownerElement;
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/**
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* Cached childID of the ContentParent owning the TabParent in this frame
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* loader. This can be used to obtain the childID after the TabParent died.
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*/
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readonly attribute unsigned long long childID;
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/**
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* Get or set this frame loader's visibility.
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*
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* The notion of "visibility" here is separate from the notion of a
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* window/docshell's visibility. This field is mostly here so that we can
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* have a notion of visibility in the parent process when frames are OOP.
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*/
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[infallible] attribute boolean visible;
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};
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%{C++
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class nsFrameLoader;
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%}
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native alreadyAddRefed_nsFrameLoader(already_AddRefed<nsFrameLoader>);
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[scriptable, uuid(5879040e-83e9-40e3-b2bb-5ddf43b76e47)]
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interface nsIFrameLoaderOwner : nsISupports
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{
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/**
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* The frame loader owned by this nsIFrameLoaderOwner
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*/
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readonly attribute nsIFrameLoader frameLoader;
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[noscript, notxpcom] alreadyAddRefed_nsFrameLoader GetFrameLoader();
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/**
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* Swap frame loaders with the given nsIFrameLoaderOwner. This may
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* only be posible in a very limited range of circumstances, or
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* never, depending on the object implementing this interface.
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*
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* @throws NS_ERROR_NOT_IMPLEMENTED if the swapping logic is not
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* implemented for the two given frame loader owners.
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* @throws NS_ERROR_DOM_SECURITY_ERR if the swap is not allowed on
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* security grounds.
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*/
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void swapFrameLoaders(in nsIFrameLoaderOwner aOtherOwner);
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};
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