gecko-dev/dom/webidl/Element.webidl
Scott Johnson 8fce66a029 Bug 878931: Add a FontSizeInflation() method to Element in order to retrieve font size inflation to use during reflow-on-zoom. [r=kats,mounir]
The reflow-on-zoom behavior needs a more robust determination of the font size inflation, so
that it can adjust its behavior depending on whether font size inflation has been
enabled for a given element's text. This patch also modifies the behavior of reflow-
on-zoom such that it will zoom in to piece of text, with reflow, if the minimum
specified font size in the font size inflation preferences is greater than the
current font size, with font size inflation, of the element.
2013-07-02 09:04:27 -05:00

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/.
*
* The origin of this IDL file is
* http://dom.spec.whatwg.org/#element and
* http://domparsing.spec.whatwg.org/ and
* http://dev.w3.org/csswg/cssom-view/ and
* http://www.w3.org/TR/selectors-api/
*
* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
* liability, trademark and document use rules apply.
*/
interface Element : Node {
/*
We haven't moved these from Node to Element like the spec wants.
[Throws]
readonly attribute DOMString? namespaceURI;
readonly attribute DOMString? prefix;
readonly attribute DOMString localName;
*/
// Not [Constant] because it depends on which document we're in
[Pure]
readonly attribute DOMString tagName;
[Pure]
attribute DOMString id;
/*
FIXME Bug 810677 Move className from HTMLElement to Element
attribute DOMString className;
*/
[Constant]
readonly attribute DOMTokenList? classList;
[Constant]
readonly attribute MozNamedAttrMap attributes;
DOMString? getAttribute(DOMString name);
DOMString? getAttributeNS(DOMString? namespace, DOMString localName);
[Throws]
void setAttribute(DOMString name, DOMString value);
[Throws]
void setAttributeNS(DOMString? namespace, DOMString name, DOMString value);
[Throws]
void removeAttribute(DOMString name);
[Throws]
void removeAttributeNS(DOMString? namespace, DOMString localName);
boolean hasAttribute(DOMString name);
boolean hasAttributeNS(DOMString? namespace, DOMString localName);
HTMLCollection getElementsByTagName(DOMString localName);
[Throws]
HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
HTMLCollection getElementsByClassName(DOMString classNames);
[Constant]
readonly attribute HTMLCollection children;
[Pure]
readonly attribute Element? firstElementChild;
[Pure]
readonly attribute Element? lastElementChild;
[Pure]
readonly attribute Element? previousElementSibling;
[Pure]
readonly attribute Element? nextElementSibling;
[Pure]
readonly attribute unsigned long childElementCount;
/**
* The ratio of font-size-inflated text font size to computed font
* size for this element. This will query the element for its primary frame,
* and then use this to get font size inflation information about the frame.
* This will be 1.0 if font size inflation is not enabled, and -1.0 if an
* error occurred during the retrieval of the font size inflation.
*
* @note The font size inflation ratio that is returned is actually the
* font size inflation data for the element's _primary frame_, not the
* element itself, but for most purposes, this should be sufficient.
*/
[ChromeOnly]
readonly attribute float fontSizeInflation;
// Mozilla specific stuff
[SetterThrows,LenientThis]
attribute EventHandler onmouseenter;
[SetterThrows,LenientThis]
attribute EventHandler onmouseleave;
[SetterThrows]
attribute EventHandler onwheel;
// Selectors API
/**
* Returns whether this element would be selected by the given selector
* string.
*
* See <http://dev.w3.org/2006/webapi/selectors-api2/#matchesselector>
*/
[Throws]
boolean mozMatchesSelector(DOMString selector);
// Proprietary extensions
/**
* Set this during a mousedown event to grab and retarget all mouse events
* to this element until the mouse button is released or releaseCapture is
* called. If retargetToElement is true, then all events are targetted at
* this element. If false, events can also fire at descendants of this
* element.
*
*/
void setCapture(optional boolean retargetToElement = false);
/**
* If this element has captured the mouse, release the capture. If another
* element has captured the mouse, this method has no effect.
*/
void releaseCapture();
// Mozilla extensions
/**
* Requests that this element be made the full-screen element, as per the DOM
* full-screen api.
*
* @see <https://wiki.mozilla.org/index.php?title=Gecko:FullScreenAPI>
*/
void mozRequestFullScreen();
/**
* Requests that this element be made the pointer-locked element, as per the DOM
* pointer lock api.
*
* @see <http://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html>
*/
void mozRequestPointerLock();
// Obsolete methods.
Attr? getAttributeNode(DOMString name);
[Throws]
Attr? setAttributeNode(Attr newAttr);
[Throws]
Attr? removeAttributeNode(Attr oldAttr);
Attr? getAttributeNodeNS(DOMString? namespaceURI, DOMString localName);
[Throws]
Attr? setAttributeNodeNS(Attr newAttr);
};
// http://dev.w3.org/csswg/cssom-view/#extensions-to-the-element-interface
partial interface Element {
ClientRectList getClientRects();
ClientRect getBoundingClientRect();
// scrolling
void scrollIntoView(optional boolean top = true);
// None of the CSSOM attributes are [Pure], because they flush
attribute long scrollTop; // scroll on setting
attribute long scrollLeft; // scroll on setting
readonly attribute long scrollWidth;
readonly attribute long scrollHeight;
readonly attribute long clientTop;
readonly attribute long clientLeft;
readonly attribute long clientWidth;
readonly attribute long clientHeight;
// Mozilla specific stuff
/* The maximum offset that the element can be scrolled to
(i.e., the value that scrollLeft/scrollTop would be clamped to if they were
set to arbitrarily large values. */
readonly attribute long scrollTopMax;
readonly attribute long scrollLeftMax;
};
// http://dvcs.w3.org/hg/undomanager/raw-file/tip/undomanager.html
partial interface Element {
[Pref="dom.undo_manager.enabled"]
readonly attribute UndoManager? undoManager;
[SetterThrows,Pref="dom.undo_manager.enabled"]
attribute boolean undoScope;
};
// http://domparsing.spec.whatwg.org/#extensions-to-the-element-interface
partial interface Element {
[Throws,TreatNullAs=EmptyString]
attribute DOMString innerHTML;
[Throws,TreatNullAs=EmptyString]
attribute DOMString outerHTML;
[Throws]
void insertAdjacentHTML(DOMString position, DOMString text);
};
// http://www.w3.org/TR/selectors-api/#interface-definitions
partial interface Element {
[Throws]
Element? querySelector(DOMString selectors);
[Throws]
NodeList querySelectorAll(DOMString selectors);
};
Element implements ChildNode;