зеркало из https://github.com/mozilla/gecko-dev.git
95 строки
2.9 KiB
Plaintext
95 строки
2.9 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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/**
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* These objects support visualization of flex containers by the
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* dev tools.
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*/
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/**
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* A flex container's main and cross axes are either horizontal or
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* vertical, each with two possible directions.
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*/
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enum FlexPhysicalDirection {
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"horizontal-lr",
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"horizontal-rl",
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"vertical-tb",
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"vertical-bt",
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};
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[ChromeOnly, Exposed=Window]
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interface Flex
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{
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sequence<FlexLineValues> getLines();
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/**
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* The physical direction in which successive flex items are placed,
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* within a flex line in this flex container.
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*/
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readonly attribute FlexPhysicalDirection mainAxisDirection;
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/**
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* The physical direction in which successive flex lines are placed
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* in this flex container (if it is or were multi-line).
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*/
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readonly attribute FlexPhysicalDirection crossAxisDirection;
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};
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/**
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* This indicates which flex factor (flex-grow vs. flex-shrink) the
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* flex layout algorithm uses internally when resolving flexible sizes
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* in a given flex line, per flexbox spec section 9.7 step 1. Note that
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* this value doesn't necessarily mean that any items on this line
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* are *actually* growing (or shrinking). This simply indicates what
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* the layout algorithm "wants" to do, based on the free space --
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* and items will stretch from their flex base size in the corresponding
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* direction, if permitted by their min/max constraints and their
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* corresponding flex factor.
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*/
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enum FlexLineGrowthState { "shrinking", "growing" };
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[ChromeOnly, Exposed=Window]
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interface FlexLineValues
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{
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readonly attribute FlexLineGrowthState growthState;
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readonly attribute double crossStart;
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readonly attribute double crossSize;
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// firstBaselineOffset measures from flex-start edge.
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readonly attribute double firstBaselineOffset;
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// lastBaselineOffset measures from flex-end edge.
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readonly attribute double lastBaselineOffset;
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/**
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* getItems() returns FlexItemValues only for the Elements in
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* this Flex container -- ignoring struts and abs-pos Elements.
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*/
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sequence<FlexItemValues> getItems();
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};
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/**
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* Item main sizes have either been unclamped, clamped to the minimum,
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* or clamped to the maximum.
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*/
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enum FlexItemClampState {
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"unclamped", "clamped_to_min", "clamped_to_max"
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};
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[ChromeOnly, Exposed=Window]
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interface FlexItemValues
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{
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readonly attribute Node? node;
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readonly attribute DOMRectReadOnly frameRect;
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readonly attribute double mainBaseSize;
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readonly attribute double mainDeltaSize;
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readonly attribute double mainMinSize;
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readonly attribute double mainMaxSize;
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readonly attribute double crossMinSize;
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readonly attribute double crossMaxSize;
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readonly attribute FlexItemClampState clampState;
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};
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