C# transpiler, API, and tests
This commit is contained in:
928
src/csharp/Facebook.CSSLayout/LayoutEngine.cs
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928
src/csharp/Facebook.CSSLayout/LayoutEngine.cs
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/**
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* Copyright (c) 2014, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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using System;
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using boolean = System.Boolean;
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using static Facebook.CSSLayout.CSSLayout;
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namespace Facebook.CSSLayout
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{
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/**
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* Calculates layouts based on CSS style. See {@link #layoutNode(CSSNode, float)}.
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*/
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static class LayoutEngine
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{
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const int CSS_FLEX_DIRECTION_COLUMN =
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(int)CSSFlexDirection.Column;
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const int CSS_FLEX_DIRECTION_COLUMN_REVERSE =
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(int)CSSFlexDirection.ColumnReverse;
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const int CSS_FLEX_DIRECTION_ROW =
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(int)CSSFlexDirection.Row;
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const int CSS_FLEX_DIRECTION_ROW_REVERSE =
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(int)CSSFlexDirection.RowReverse;
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const int CSS_POSITION_RELATIVE = (int)CSSPositionType.Relative;
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const int CSS_POSITION_ABSOLUTE = (int)CSSPositionType.Absolute;
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private static readonly int[] leading = {
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POSITION_TOP,
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POSITION_BOTTOM,
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POSITION_LEFT,
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POSITION_RIGHT,
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};
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private static readonly int[] trailing = {
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POSITION_BOTTOM,
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POSITION_TOP,
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POSITION_RIGHT,
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POSITION_LEFT,
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};
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private static readonly int[] pos = {
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POSITION_TOP,
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POSITION_BOTTOM,
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POSITION_LEFT,
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POSITION_RIGHT,
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};
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private static readonly int[] dim = {
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DIMENSION_HEIGHT,
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DIMENSION_HEIGHT,
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DIMENSION_WIDTH,
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DIMENSION_WIDTH,
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};
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private static readonly int[] leadingSpacing = {
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Spacing.TOP,
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Spacing.BOTTOM,
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Spacing.START,
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Spacing.START
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};
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private static readonly int[] trailingSpacing = {
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Spacing.BOTTOM,
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Spacing.TOP,
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Spacing.END,
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Spacing.END
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};
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private static float boundAxis(CSSNode node, int axis, float value)
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{
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float min = CSSConstants.Undefined;
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float max = CSSConstants.Undefined;
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if (axis == CSS_FLEX_DIRECTION_COLUMN || axis == CSS_FLEX_DIRECTION_COLUMN_REVERSE)
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{
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min = node.style.minHeight;
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max = node.style.maxHeight;
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}
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else if (axis == CSS_FLEX_DIRECTION_ROW || axis == CSS_FLEX_DIRECTION_ROW_REVERSE)
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{
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min = node.style.minWidth;
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max = node.style.maxWidth;
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}
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float boundValue = value;
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if (!float.IsNaN(max) && max >= 0.0 && boundValue > max)
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{
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boundValue = max;
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}
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if (!float.IsNaN(min) && min >= 0.0 && boundValue < min)
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{
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boundValue = min;
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}
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return boundValue;
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}
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private static void setDimensionFromStyle(CSSNode node, int axis)
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{
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// The parent already computed us a width or height. We just skip it
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if (!float.IsNaN(node.layout.dimensions[dim[axis]]))
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{
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return;
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}
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// We only run if there's a width or height defined
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if (float.IsNaN(node.style.dimensions[dim[axis]]) ||
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node.style.dimensions[dim[axis]] <= 0.0)
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{
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return;
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}
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// The dimensions can never be smaller than the padding and border
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float maxLayoutDimension = Math.Max(
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boundAxis(node, axis, node.style.dimensions[dim[axis]]),
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node.style.padding.getWithFallback(leadingSpacing[axis], leading[axis]) +
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node.style.padding.getWithFallback(trailingSpacing[axis], trailing[axis]) +
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node.style.border.getWithFallback(leadingSpacing[axis], leading[axis]) +
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node.style.border.getWithFallback(trailingSpacing[axis], trailing[axis]));
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node.layout.dimensions[dim[axis]] = maxLayoutDimension;
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}
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private static float getRelativePosition(CSSNode node, int axis)
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{
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float lead = node.style.position[leading[axis]];
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if (!float.IsNaN(lead))
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{
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return lead;
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}
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float trailingPos = node.style.position[trailing[axis]];
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return float.IsNaN(trailingPos) ? 0 : -trailingPos;
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}
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static int resolveAxis(int axis, CSSDirection direction)
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{
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if (direction == CSSDirection.RTL)
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{
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if (axis == CSS_FLEX_DIRECTION_ROW)
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{
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return CSS_FLEX_DIRECTION_ROW_REVERSE;
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}
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else if (axis == CSS_FLEX_DIRECTION_ROW_REVERSE)
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{
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return CSS_FLEX_DIRECTION_ROW;
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}
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}
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return axis;
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}
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static CSSDirection resolveDirection(CSSNode node, CSSDirection? parentDirection)
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{
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CSSDirection direction = node.style.direction;
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if (direction == CSSDirection.Inherit)
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{
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direction = (parentDirection == null ? CSSDirection.LTR : parentDirection.Value);
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}
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return direction;
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}
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static int getFlexDirection(CSSNode node)
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{
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return (int)node.style.flexDirection;
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}
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private static int getCrossFlexDirection(int axis, CSSDirection direction)
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{
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if (axis == CSS_FLEX_DIRECTION_COLUMN || axis == CSS_FLEX_DIRECTION_COLUMN_REVERSE)
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{
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return resolveAxis(CSS_FLEX_DIRECTION_ROW, direction);
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}
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else
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{
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return CSS_FLEX_DIRECTION_COLUMN;
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}
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}
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static CSSAlign getAlignItem(CSSNode node, CSSNode child)
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{
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if (child.style.alignSelf != CSSAlign.Auto)
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{
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return child.style.alignSelf;
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}
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return node.style.alignItems;
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}
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static boolean isMeasureDefined(CSSNode node)
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{
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return node.IsMeasureDefined;
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}
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static boolean needsRelayout(CSSNode node, float parentMaxWidth)
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{
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return node.isDirty() ||
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!FloatUtil.floatsEqual(
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node.lastLayout.requestedHeight,
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node.layout.dimensions[DIMENSION_HEIGHT]) ||
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!FloatUtil.floatsEqual(
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node.lastLayout.requestedWidth,
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node.layout.dimensions[DIMENSION_WIDTH]) ||
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!FloatUtil.floatsEqual(node.lastLayout.parentMaxWidth, parentMaxWidth);
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}
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internal static void layoutNode(CSSLayoutContext layoutContext, CSSNode node, float parentMaxWidth, CSSDirection? parentDirection)
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{
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if (needsRelayout(node, parentMaxWidth))
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{
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node.lastLayout.requestedWidth = node.layout.dimensions[DIMENSION_WIDTH];
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node.lastLayout.requestedHeight = node.layout.dimensions[DIMENSION_HEIGHT];
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node.lastLayout.parentMaxWidth = parentMaxWidth;
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layoutNodeImpl(layoutContext, node, parentMaxWidth, parentDirection);
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node.lastLayout.copy(node.layout);
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}
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else
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{
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node.layout.copy(node.lastLayout);
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}
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node.markHasNewLayout();
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}
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static void layoutNodeImpl(CSSLayoutContext layoutContext, CSSNode node, float parentMaxWidth, CSSDirection? parentDirection)
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{
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var childCount_ = node.getChildCount();
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for (int i_ = 0; i_ < childCount_; i_++)
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{
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node.getChildAt(i_).layout.resetResult();
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}
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/** START_GENERATED **/
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CSSDirection direction = resolveDirection(node, parentDirection);
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int mainAxis = resolveAxis(getFlexDirection(node), direction);
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int crossAxis = getCrossFlexDirection(mainAxis, direction);
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int resolvedRowAxis = resolveAxis(CSS_FLEX_DIRECTION_ROW, direction);
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// Handle width and height style attributes
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setDimensionFromStyle(node, mainAxis);
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setDimensionFromStyle(node, crossAxis);
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// Set the resolved resolution in the node's layout
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node.layout.direction = direction;
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// The position is set by the parent, but we need to complete it with a
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// delta composed of the margin and left/top/right/bottom
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node.layout.position[leading[mainAxis]] += node.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) +
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getRelativePosition(node, mainAxis);
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node.layout.position[trailing[mainAxis]] += node.style.margin.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) +
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getRelativePosition(node, mainAxis);
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node.layout.position[leading[crossAxis]] += node.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) +
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getRelativePosition(node, crossAxis);
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node.layout.position[trailing[crossAxis]] += node.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]) +
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getRelativePosition(node, crossAxis);
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// Inline immutable values from the target node to avoid excessive method
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// invocations during the layout calculation.
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int childCount = node.getChildCount();
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float paddingAndBorderAxisResolvedRow = ((node.style.padding.getWithFallback(leadingSpacing[resolvedRowAxis], leading[resolvedRowAxis]) + node.style.border.getWithFallback(leadingSpacing[resolvedRowAxis], leading[resolvedRowAxis])) + (node.style.padding.getWithFallback(trailingSpacing[resolvedRowAxis], trailing[resolvedRowAxis]) + node.style.border.getWithFallback(trailingSpacing[resolvedRowAxis], trailing[resolvedRowAxis])));
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if (isMeasureDefined(node)) {
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boolean isResolvedRowDimDefined = !float.IsNaN(node.layout.dimensions[dim[resolvedRowAxis]]);
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float width = CSSConstants.Undefined;
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if ((!float.IsNaN(node.style.dimensions[dim[resolvedRowAxis]]) && node.style.dimensions[dim[resolvedRowAxis]] > 0.0)) {
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width = node.style.dimensions[DIMENSION_WIDTH];
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} else if (isResolvedRowDimDefined) {
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width = node.layout.dimensions[dim[resolvedRowAxis]];
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} else {
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width = parentMaxWidth -
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(node.style.margin.getWithFallback(leadingSpacing[resolvedRowAxis], leading[resolvedRowAxis]) + node.style.margin.getWithFallback(trailingSpacing[resolvedRowAxis], trailing[resolvedRowAxis]));
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}
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width -= paddingAndBorderAxisResolvedRow;
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// We only need to give a dimension for the text if we haven't got any
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// for it computed yet. It can either be from the style attribute or because
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// the element is flexible.
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boolean isRowUndefined = !(!float.IsNaN(node.style.dimensions[dim[resolvedRowAxis]]) && node.style.dimensions[dim[resolvedRowAxis]] > 0.0) && !isResolvedRowDimDefined;
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boolean isColumnUndefined = !(!float.IsNaN(node.style.dimensions[dim[CSS_FLEX_DIRECTION_COLUMN]]) && node.style.dimensions[dim[CSS_FLEX_DIRECTION_COLUMN]] > 0.0) &&
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float.IsNaN(node.layout.dimensions[dim[CSS_FLEX_DIRECTION_COLUMN]]);
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// Let's not measure the text if we already know both dimensions
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if (isRowUndefined || isColumnUndefined) {
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MeasureOutput measureDim = node.measure(
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layoutContext.measureOutput,
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width
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);
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if (isRowUndefined) {
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node.layout.dimensions[DIMENSION_WIDTH] = measureDim.width +
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paddingAndBorderAxisResolvedRow;
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}
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if (isColumnUndefined) {
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node.layout.dimensions[DIMENSION_HEIGHT] = measureDim.height +
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((node.style.padding.getWithFallback(leadingSpacing[CSS_FLEX_DIRECTION_COLUMN], leading[CSS_FLEX_DIRECTION_COLUMN]) + node.style.border.getWithFallback(leadingSpacing[CSS_FLEX_DIRECTION_COLUMN], leading[CSS_FLEX_DIRECTION_COLUMN])) + (node.style.padding.getWithFallback(trailingSpacing[CSS_FLEX_DIRECTION_COLUMN], trailing[CSS_FLEX_DIRECTION_COLUMN]) + node.style.border.getWithFallback(trailingSpacing[CSS_FLEX_DIRECTION_COLUMN], trailing[CSS_FLEX_DIRECTION_COLUMN])));
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}
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}
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if (childCount == 0) {
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return;
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}
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}
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boolean isNodeFlexWrap = (node.style.flexWrap == CSSWrap.Wrap);
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CSSJustify justifyContent = node.style.justifyContent;
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float leadingPaddingAndBorderMain = (node.style.padding.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + node.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]));
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float leadingPaddingAndBorderCross = (node.style.padding.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + node.style.border.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]));
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float paddingAndBorderAxisMain = ((node.style.padding.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + node.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis])) + (node.style.padding.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) + node.style.border.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis])));
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float paddingAndBorderAxisCross = ((node.style.padding.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + node.style.border.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis])) + (node.style.padding.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]) + node.style.border.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis])));
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boolean isMainDimDefined = !float.IsNaN(node.layout.dimensions[dim[mainAxis]]);
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boolean isCrossDimDefined = !float.IsNaN(node.layout.dimensions[dim[crossAxis]]);
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boolean isMainRowDirection = (mainAxis == CSS_FLEX_DIRECTION_ROW || mainAxis == CSS_FLEX_DIRECTION_ROW_REVERSE);
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int i;
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int ii;
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CSSNode child;
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int axis;
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CSSNode firstAbsoluteChild = null;
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CSSNode currentAbsoluteChild = null;
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float definedMainDim = CSSConstants.Undefined;
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if (isMainDimDefined) {
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definedMainDim = node.layout.dimensions[dim[mainAxis]] - paddingAndBorderAxisMain;
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}
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// We want to execute the next two loops one per line with flex-wrap
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int startLine = 0;
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int endLine = 0;
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// int nextOffset = 0;
|
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int alreadyComputedNextLayout = 0;
|
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// We aggregate the total dimensions of the container in those two variables
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float linesCrossDim = 0;
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float linesMainDim = 0;
|
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int linesCount = 0;
|
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while (endLine < childCount) {
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// <Loop A> Layout non flexible children and count children by type
|
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// mainContentDim is accumulation of the dimensions and margin of all the
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// non flexible children. This will be used in order to either set the
|
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// dimensions of the node if none already exist, or to compute the
|
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// remaining space left for the flexible children.
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float mainContentDim = 0;
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// There are three kind of children, non flexible, flexible and absolute.
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// We need to know how many there are in order to distribute the space.
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int flexibleChildrenCount = 0;
|
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float totalFlexible = 0;
|
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int nonFlexibleChildrenCount = 0;
|
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// Use the line loop to position children in the main axis for as long
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// as they are using a simple stacking behaviour. Children that are
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// immediately stacked in the initial loop will not be touched again
|
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// in <Loop C>.
|
||||
boolean isSimpleStackMain =
|
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(isMainDimDefined && justifyContent == CSSJustify.FlexStart) ||
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(!isMainDimDefined && justifyContent != CSSJustify.Center);
|
||||
int firstComplexMain = (isSimpleStackMain ? childCount : startLine);
|
||||
|
||||
// Use the initial line loop to position children in the cross axis for
|
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// as long as they are relatively positioned with alignment STRETCH or
|
||||
// FLEX_START. Children that are immediately stacked in the initial loop
|
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// will not be touched again in <Loop D>.
|
||||
boolean isSimpleStackCross = true;
|
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int firstComplexCross = childCount;
|
||||
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CSSNode firstFlexChild = null;
|
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CSSNode currentFlexChild = null;
|
||||
|
||||
float mainDim = leadingPaddingAndBorderMain;
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float crossDim = 0;
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||||
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float maxWidth;
|
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for (i = startLine; i < childCount; ++i) {
|
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child = node.getChildAt(i);
|
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child.lineIndex = linesCount;
|
||||
|
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child.nextAbsoluteChild = null;
|
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child.nextFlexChild = null;
|
||||
|
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CSSAlign alignItem = getAlignItem(node, child);
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// Pre-fill cross axis dimensions when the child is using stretch before
|
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// we call the recursive layout pass
|
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if (alignItem == CSSAlign.Stretch &&
|
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child.style.positionType == CSSPositionType.Relative &&
|
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isCrossDimDefined &&
|
||||
!(!float.IsNaN(child.style.dimensions[dim[crossAxis]]) && child.style.dimensions[dim[crossAxis]] > 0.0)) {
|
||||
child.layout.dimensions[dim[crossAxis]] = Math.Max(
|
||||
boundAxis(child, crossAxis, node.layout.dimensions[dim[crossAxis]] -
|
||||
paddingAndBorderAxisCross - (child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]))),
|
||||
// You never want to go smaller than padding
|
||||
((child.style.padding.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.border.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis])) + (child.style.padding.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]) + child.style.border.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis])))
|
||||
);
|
||||
} else if (child.style.positionType == CSSPositionType.Absolute) {
|
||||
// Store a private linked list of absolutely positioned children
|
||||
// so that we can efficiently traverse them later.
|
||||
if (firstAbsoluteChild == null) {
|
||||
firstAbsoluteChild = child;
|
||||
}
|
||||
if (currentAbsoluteChild != null) {
|
||||
currentAbsoluteChild.nextAbsoluteChild = child;
|
||||
}
|
||||
currentAbsoluteChild = child;
|
||||
|
||||
// Pre-fill dimensions when using absolute position and both offsets for the axis are defined (either both
|
||||
// left and right or top and bottom).
|
||||
for (ii = 0; ii < 2; ii++) {
|
||||
axis = (ii != 0) ? CSS_FLEX_DIRECTION_ROW : CSS_FLEX_DIRECTION_COLUMN;
|
||||
if (!float.IsNaN(node.layout.dimensions[dim[axis]]) &&
|
||||
!(!float.IsNaN(child.style.dimensions[dim[axis]]) && child.style.dimensions[dim[axis]] > 0.0) &&
|
||||
!float.IsNaN(child.style.position[leading[axis]]) &&
|
||||
!float.IsNaN(child.style.position[trailing[axis]])) {
|
||||
child.layout.dimensions[dim[axis]] = Math.Max(
|
||||
boundAxis(child, axis, node.layout.dimensions[dim[axis]] -
|
||||
((node.style.padding.getWithFallback(leadingSpacing[axis], leading[axis]) + node.style.border.getWithFallback(leadingSpacing[axis], leading[axis])) + (node.style.padding.getWithFallback(trailingSpacing[axis], trailing[axis]) + node.style.border.getWithFallback(trailingSpacing[axis], trailing[axis]))) -
|
||||
(child.style.margin.getWithFallback(leadingSpacing[axis], leading[axis]) + child.style.margin.getWithFallback(trailingSpacing[axis], trailing[axis])) -
|
||||
(float.IsNaN(child.style.position[leading[axis]]) ? 0 : child.style.position[leading[axis]]) -
|
||||
(float.IsNaN(child.style.position[trailing[axis]]) ? 0 : child.style.position[trailing[axis]])),
|
||||
// You never want to go smaller than padding
|
||||
((child.style.padding.getWithFallback(leadingSpacing[axis], leading[axis]) + child.style.border.getWithFallback(leadingSpacing[axis], leading[axis])) + (child.style.padding.getWithFallback(trailingSpacing[axis], trailing[axis]) + child.style.border.getWithFallback(trailingSpacing[axis], trailing[axis])))
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
float nextContentDim = 0;
|
||||
|
||||
// It only makes sense to consider a child flexible if we have a computed
|
||||
// dimension for the node.
|
||||
if (isMainDimDefined && (child.style.positionType == CSSPositionType.Relative && child.style.flex > 0)) {
|
||||
flexibleChildrenCount++;
|
||||
totalFlexible += child.style.flex;
|
||||
|
||||
// Store a private linked list of flexible children so that we can
|
||||
// efficiently traverse them later.
|
||||
if (firstFlexChild == null) {
|
||||
firstFlexChild = child;
|
||||
}
|
||||
if (currentFlexChild != null) {
|
||||
currentFlexChild.nextFlexChild = child;
|
||||
}
|
||||
currentFlexChild = child;
|
||||
|
||||
// Even if we don't know its exact size yet, we already know the padding,
|
||||
// border and margin. We'll use this partial information, which represents
|
||||
// the smallest possible size for the child, to compute the remaining
|
||||
// available space.
|
||||
nextContentDim = ((child.style.padding.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + child.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis])) + (child.style.padding.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) + child.style.border.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]))) +
|
||||
(child.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + child.style.margin.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]));
|
||||
|
||||
} else {
|
||||
maxWidth = CSSConstants.Undefined;
|
||||
if (!isMainRowDirection) {
|
||||
if ((!float.IsNaN(node.style.dimensions[dim[resolvedRowAxis]]) && node.style.dimensions[dim[resolvedRowAxis]] > 0.0)) {
|
||||
maxWidth = node.layout.dimensions[dim[resolvedRowAxis]] -
|
||||
paddingAndBorderAxisResolvedRow;
|
||||
} else {
|
||||
maxWidth = parentMaxWidth -
|
||||
(node.style.margin.getWithFallback(leadingSpacing[resolvedRowAxis], leading[resolvedRowAxis]) + node.style.margin.getWithFallback(trailingSpacing[resolvedRowAxis], trailing[resolvedRowAxis])) -
|
||||
paddingAndBorderAxisResolvedRow;
|
||||
}
|
||||
}
|
||||
|
||||
// This is the main recursive call. We layout non flexible children.
|
||||
if (alreadyComputedNextLayout == 0) {
|
||||
layoutNode(layoutContext, child, maxWidth, direction);
|
||||
}
|
||||
|
||||
// Absolute positioned elements do not take part of the layout, so we
|
||||
// don't use them to compute mainContentDim
|
||||
if (child.style.positionType == CSSPositionType.Relative) {
|
||||
nonFlexibleChildrenCount++;
|
||||
// At this point we know the final size and margin of the element.
|
||||
nextContentDim = (child.layout.dimensions[dim[mainAxis]] + child.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + child.style.margin.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]));
|
||||
}
|
||||
}
|
||||
|
||||
// The element we are about to add would make us go to the next line
|
||||
if (isNodeFlexWrap &&
|
||||
isMainDimDefined &&
|
||||
mainContentDim + nextContentDim > definedMainDim &&
|
||||
// If there's only one element, then it's bigger than the content
|
||||
// and needs its own line
|
||||
i != startLine) {
|
||||
nonFlexibleChildrenCount--;
|
||||
alreadyComputedNextLayout = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
// Disable simple stacking in the main axis for the current line as
|
||||
// we found a non-trivial child. The remaining children will be laid out
|
||||
// in <Loop C>.
|
||||
if (isSimpleStackMain &&
|
||||
(child.style.positionType != CSSPositionType.Relative || (child.style.positionType == CSSPositionType.Relative && child.style.flex > 0))) {
|
||||
isSimpleStackMain = false;
|
||||
firstComplexMain = i;
|
||||
}
|
||||
|
||||
// Disable simple stacking in the cross axis for the current line as
|
||||
// we found a non-trivial child. The remaining children will be laid out
|
||||
// in <Loop D>.
|
||||
if (isSimpleStackCross &&
|
||||
(child.style.positionType != CSSPositionType.Relative ||
|
||||
(alignItem != CSSAlign.Stretch && alignItem != CSSAlign.FlexStart) ||
|
||||
float.IsNaN(child.layout.dimensions[dim[crossAxis]]))) {
|
||||
isSimpleStackCross = false;
|
||||
firstComplexCross = i;
|
||||
}
|
||||
|
||||
if (isSimpleStackMain) {
|
||||
child.layout.position[pos[mainAxis]] += mainDim;
|
||||
if (isMainDimDefined) {
|
||||
child.layout.position[trailing[mainAxis]] = node.layout.dimensions[dim[mainAxis]] - child.layout.dimensions[dim[mainAxis]] - child.layout.position[pos[mainAxis]];
|
||||
}
|
||||
|
||||
mainDim += (child.layout.dimensions[dim[mainAxis]] + child.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + child.style.margin.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]));
|
||||
crossDim = Math.Max(crossDim, boundAxis(child, crossAxis, (child.layout.dimensions[dim[crossAxis]] + child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]))));
|
||||
}
|
||||
|
||||
if (isSimpleStackCross) {
|
||||
child.layout.position[pos[crossAxis]] += linesCrossDim + leadingPaddingAndBorderCross;
|
||||
if (isCrossDimDefined) {
|
||||
child.layout.position[trailing[crossAxis]] = node.layout.dimensions[dim[crossAxis]] - child.layout.dimensions[dim[crossAxis]] - child.layout.position[pos[crossAxis]];
|
||||
}
|
||||
}
|
||||
|
||||
alreadyComputedNextLayout = 0;
|
||||
mainContentDim += nextContentDim;
|
||||
endLine = i + 1;
|
||||
}
|
||||
|
||||
// <Loop B> Layout flexible children and allocate empty space
|
||||
|
||||
// In order to position the elements in the main axis, we have two
|
||||
// controls. The space between the beginning and the first element
|
||||
// and the space between each two elements.
|
||||
float leadingMainDim = 0;
|
||||
float betweenMainDim = 0;
|
||||
|
||||
// The remaining available space that needs to be allocated
|
||||
float remainingMainDim = 0;
|
||||
if (isMainDimDefined) {
|
||||
remainingMainDim = definedMainDim - mainContentDim;
|
||||
} else {
|
||||
remainingMainDim = Math.Max(mainContentDim, 0) - mainContentDim;
|
||||
}
|
||||
|
||||
// If there are flexible children in the mix, they are going to fill the
|
||||
// remaining space
|
||||
if (flexibleChildrenCount != 0) {
|
||||
float flexibleMainDim = remainingMainDim / totalFlexible;
|
||||
float baseMainDim;
|
||||
float boundMainDim;
|
||||
|
||||
// If the flex share of remaining space doesn't meet min/max bounds,
|
||||
// remove this child from flex calculations.
|
||||
currentFlexChild = firstFlexChild;
|
||||
while (currentFlexChild != null) {
|
||||
baseMainDim = flexibleMainDim * currentFlexChild.style.flex +
|
||||
((currentFlexChild.style.padding.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + currentFlexChild.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis])) + (currentFlexChild.style.padding.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) + currentFlexChild.style.border.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis])));
|
||||
boundMainDim = boundAxis(currentFlexChild, mainAxis, baseMainDim);
|
||||
|
||||
if (baseMainDim != boundMainDim) {
|
||||
remainingMainDim -= boundMainDim;
|
||||
totalFlexible -= currentFlexChild.style.flex;
|
||||
}
|
||||
|
||||
currentFlexChild = currentFlexChild.nextFlexChild;
|
||||
}
|
||||
flexibleMainDim = remainingMainDim / totalFlexible;
|
||||
|
||||
// The non flexible children can overflow the container, in this case
|
||||
// we should just assume that there is no space available.
|
||||
if (flexibleMainDim < 0) {
|
||||
flexibleMainDim = 0;
|
||||
}
|
||||
|
||||
currentFlexChild = firstFlexChild;
|
||||
while (currentFlexChild != null) {
|
||||
// At this point we know the final size of the element in the main
|
||||
// dimension
|
||||
currentFlexChild.layout.dimensions[dim[mainAxis]] = boundAxis(currentFlexChild, mainAxis,
|
||||
flexibleMainDim * currentFlexChild.style.flex +
|
||||
((currentFlexChild.style.padding.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + currentFlexChild.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis])) + (currentFlexChild.style.padding.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) + currentFlexChild.style.border.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis])))
|
||||
);
|
||||
|
||||
maxWidth = CSSConstants.Undefined;
|
||||
if ((!float.IsNaN(node.style.dimensions[dim[resolvedRowAxis]]) && node.style.dimensions[dim[resolvedRowAxis]] > 0.0)) {
|
||||
maxWidth = node.layout.dimensions[dim[resolvedRowAxis]] -
|
||||
paddingAndBorderAxisResolvedRow;
|
||||
} else if (!isMainRowDirection) {
|
||||
maxWidth = parentMaxWidth -
|
||||
(node.style.margin.getWithFallback(leadingSpacing[resolvedRowAxis], leading[resolvedRowAxis]) + node.style.margin.getWithFallback(trailingSpacing[resolvedRowAxis], trailing[resolvedRowAxis])) -
|
||||
paddingAndBorderAxisResolvedRow;
|
||||
}
|
||||
|
||||
// And we recursively call the layout algorithm for this child
|
||||
layoutNode(layoutContext, currentFlexChild, maxWidth, direction);
|
||||
|
||||
child = currentFlexChild;
|
||||
currentFlexChild = currentFlexChild.nextFlexChild;
|
||||
child.nextFlexChild = null;
|
||||
}
|
||||
|
||||
// We use justifyContent to figure out how to allocate the remaining
|
||||
// space available
|
||||
} else if (justifyContent != CSSJustify.FlexStart) {
|
||||
if (justifyContent == CSSJustify.Center) {
|
||||
leadingMainDim = remainingMainDim / 2;
|
||||
} else if (justifyContent == CSSJustify.FlexEnd) {
|
||||
leadingMainDim = remainingMainDim;
|
||||
} else if (justifyContent == CSSJustify.SpaceBetween) {
|
||||
remainingMainDim = Math.Max(remainingMainDim, 0);
|
||||
if (flexibleChildrenCount + nonFlexibleChildrenCount - 1 != 0) {
|
||||
betweenMainDim = remainingMainDim /
|
||||
(flexibleChildrenCount + nonFlexibleChildrenCount - 1);
|
||||
} else {
|
||||
betweenMainDim = 0;
|
||||
}
|
||||
} else if (justifyContent == CSSJustify.SpaceAround) {
|
||||
// Space on the edges is half of the space between elements
|
||||
betweenMainDim = remainingMainDim /
|
||||
(flexibleChildrenCount + nonFlexibleChildrenCount);
|
||||
leadingMainDim = betweenMainDim / 2;
|
||||
}
|
||||
}
|
||||
|
||||
// <Loop C> Position elements in the main axis and compute dimensions
|
||||
|
||||
// At this point, all the children have their dimensions set. We need to
|
||||
// find their position. In order to do that, we accumulate data in
|
||||
// variables that are also useful to compute the total dimensions of the
|
||||
// container!
|
||||
mainDim += leadingMainDim;
|
||||
|
||||
for (i = firstComplexMain; i < endLine; ++i) {
|
||||
child = node.getChildAt(i);
|
||||
|
||||
if (child.style.positionType == CSSPositionType.Absolute &&
|
||||
!float.IsNaN(child.style.position[leading[mainAxis]])) {
|
||||
// In case the child is position absolute and has left/top being
|
||||
// defined, we override the position to whatever the user said
|
||||
// (and margin/border).
|
||||
child.layout.position[pos[mainAxis]] = (float.IsNaN(child.style.position[leading[mainAxis]]) ? 0 : child.style.position[leading[mainAxis]]) +
|
||||
node.style.border.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) +
|
||||
child.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]);
|
||||
} else {
|
||||
// If the child is position absolute (without top/left) or relative,
|
||||
// we put it at the current accumulated offset.
|
||||
child.layout.position[pos[mainAxis]] += mainDim;
|
||||
|
||||
// Define the trailing position accordingly.
|
||||
if (isMainDimDefined) {
|
||||
child.layout.position[trailing[mainAxis]] = node.layout.dimensions[dim[mainAxis]] - child.layout.dimensions[dim[mainAxis]] - child.layout.position[pos[mainAxis]];
|
||||
}
|
||||
|
||||
// Now that we placed the element, we need to update the variables
|
||||
// We only need to do that for relative elements. Absolute elements
|
||||
// do not take part in that phase.
|
||||
if (child.style.positionType == CSSPositionType.Relative) {
|
||||
// The main dimension is the sum of all the elements dimension plus
|
||||
// the spacing.
|
||||
mainDim += betweenMainDim + (child.layout.dimensions[dim[mainAxis]] + child.style.margin.getWithFallback(leadingSpacing[mainAxis], leading[mainAxis]) + child.style.margin.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]));
|
||||
// The cross dimension is the max of the elements dimension since there
|
||||
// can only be one element in that cross dimension.
|
||||
crossDim = Math.Max(crossDim, boundAxis(child, crossAxis, (child.layout.dimensions[dim[crossAxis]] + child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]))));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
float containerCrossAxis = node.layout.dimensions[dim[crossAxis]];
|
||||
if (!isCrossDimDefined) {
|
||||
containerCrossAxis = Math.Max(
|
||||
// For the cross dim, we add both sides at the end because the value
|
||||
// is aggregate via a max function. Intermediate negative values
|
||||
// can mess this computation otherwise
|
||||
boundAxis(node, crossAxis, crossDim + paddingAndBorderAxisCross),
|
||||
paddingAndBorderAxisCross
|
||||
);
|
||||
}
|
||||
|
||||
// <Loop D> Position elements in the cross axis
|
||||
for (i = firstComplexCross; i < endLine; ++i) {
|
||||
child = node.getChildAt(i);
|
||||
|
||||
if (child.style.positionType == CSSPositionType.Absolute &&
|
||||
!float.IsNaN(child.style.position[leading[crossAxis]])) {
|
||||
// In case the child is absolutely positionned and has a
|
||||
// top/left/bottom/right being set, we override all the previously
|
||||
// computed positions to set it correctly.
|
||||
child.layout.position[pos[crossAxis]] = (float.IsNaN(child.style.position[leading[crossAxis]]) ? 0 : child.style.position[leading[crossAxis]]) +
|
||||
node.style.border.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) +
|
||||
child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]);
|
||||
|
||||
} else {
|
||||
float leadingCrossDim = leadingPaddingAndBorderCross;
|
||||
|
||||
// For a relative children, we're either using alignItems (parent) or
|
||||
// alignSelf (child) in order to determine the position in the cross axis
|
||||
if (child.style.positionType == CSSPositionType.Relative) {
|
||||
CSSAlign alignItem = getAlignItem(node, child);
|
||||
if (alignItem == CSSAlign.Stretch) {
|
||||
// You can only stretch if the dimension has not already been set
|
||||
// previously.
|
||||
if (float.IsNaN(child.layout.dimensions[dim[crossAxis]])) {
|
||||
child.layout.dimensions[dim[crossAxis]] = Math.Max(
|
||||
boundAxis(child, crossAxis, containerCrossAxis -
|
||||
paddingAndBorderAxisCross - (child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]))),
|
||||
// You never want to go smaller than padding
|
||||
((child.style.padding.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.border.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis])) + (child.style.padding.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]) + child.style.border.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis])))
|
||||
);
|
||||
}
|
||||
} else if (alignItem != CSSAlign.FlexStart) {
|
||||
// The remaining space between the parent dimensions+padding and child
|
||||
// dimensions+margin.
|
||||
float remainingCrossDim = containerCrossAxis -
|
||||
paddingAndBorderAxisCross - (child.layout.dimensions[dim[crossAxis]] + child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]));
|
||||
|
||||
if (alignItem == CSSAlign.Center) {
|
||||
leadingCrossDim += remainingCrossDim / 2;
|
||||
} else { // CSSAlign.FlexEnd
|
||||
leadingCrossDim += remainingCrossDim;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// And we apply the position
|
||||
child.layout.position[pos[crossAxis]] += linesCrossDim + leadingCrossDim;
|
||||
|
||||
// Define the trailing position accordingly.
|
||||
if (isCrossDimDefined) {
|
||||
child.layout.position[trailing[crossAxis]] = node.layout.dimensions[dim[crossAxis]] - child.layout.dimensions[dim[crossAxis]] - child.layout.position[pos[crossAxis]];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
linesCrossDim += crossDim;
|
||||
linesMainDim = Math.Max(linesMainDim, mainDim);
|
||||
linesCount += 1;
|
||||
startLine = endLine;
|
||||
}
|
||||
|
||||
// <Loop E>
|
||||
//
|
||||
// Note(prenaux): More than one line, we need to layout the crossAxis
|
||||
// according to alignContent.
|
||||
//
|
||||
// Note that we could probably remove <Loop D> and handle the one line case
|
||||
// here too, but for the moment this is safer since it won't interfere with
|
||||
// previously working code.
|
||||
//
|
||||
// See specs:
|
||||
// http://www.w3.org/TR/2012/CR-css3-flexbox-20120918/#layout-algorithm
|
||||
// section 9.4
|
||||
//
|
||||
if (linesCount > 1 && isCrossDimDefined) {
|
||||
float nodeCrossAxisInnerSize = node.layout.dimensions[dim[crossAxis]] -
|
||||
paddingAndBorderAxisCross;
|
||||
float remainingAlignContentDim = nodeCrossAxisInnerSize - linesCrossDim;
|
||||
|
||||
float crossDimLead = 0;
|
||||
float currentLead = leadingPaddingAndBorderCross;
|
||||
|
||||
CSSAlign alignContent = node.style.alignContent;
|
||||
if (alignContent == CSSAlign.FlexEnd) {
|
||||
currentLead += remainingAlignContentDim;
|
||||
} else if (alignContent == CSSAlign.Center) {
|
||||
currentLead += remainingAlignContentDim / 2;
|
||||
} else if (alignContent == CSSAlign.Stretch) {
|
||||
if (nodeCrossAxisInnerSize > linesCrossDim) {
|
||||
crossDimLead = (remainingAlignContentDim / linesCount);
|
||||
}
|
||||
}
|
||||
|
||||
int endIndex = 0;
|
||||
for (i = 0; i < linesCount; ++i) {
|
||||
int startIndex = endIndex;
|
||||
|
||||
// compute the line's height and find the endIndex
|
||||
float lineHeight = 0;
|
||||
for (ii = startIndex; ii < childCount; ++ii) {
|
||||
child = node.getChildAt(ii);
|
||||
if (child.style.positionType != CSSPositionType.Relative) {
|
||||
continue;
|
||||
}
|
||||
if (child.lineIndex != i) {
|
||||
break;
|
||||
}
|
||||
if (!float.IsNaN(child.layout.dimensions[dim[crossAxis]])) {
|
||||
lineHeight = Math.Max(
|
||||
lineHeight,
|
||||
child.layout.dimensions[dim[crossAxis]] + (child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]) + child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]))
|
||||
);
|
||||
}
|
||||
}
|
||||
endIndex = ii;
|
||||
lineHeight += crossDimLead;
|
||||
|
||||
for (ii = startIndex; ii < endIndex; ++ii) {
|
||||
child = node.getChildAt(ii);
|
||||
if (child.style.positionType != CSSPositionType.Relative) {
|
||||
continue;
|
||||
}
|
||||
|
||||
CSSAlign alignContentAlignItem = getAlignItem(node, child);
|
||||
if (alignContentAlignItem == CSSAlign.FlexStart) {
|
||||
child.layout.position[pos[crossAxis]] = currentLead + child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]);
|
||||
} else if (alignContentAlignItem == CSSAlign.FlexEnd) {
|
||||
child.layout.position[pos[crossAxis]] = currentLead + lineHeight - child.style.margin.getWithFallback(trailingSpacing[crossAxis], trailing[crossAxis]) - child.layout.dimensions[dim[crossAxis]];
|
||||
} else if (alignContentAlignItem == CSSAlign.Center) {
|
||||
float childHeight = child.layout.dimensions[dim[crossAxis]];
|
||||
child.layout.position[pos[crossAxis]] = currentLead + (lineHeight - childHeight) / 2;
|
||||
} else if (alignContentAlignItem == CSSAlign.Stretch) {
|
||||
child.layout.position[pos[crossAxis]] = currentLead + child.style.margin.getWithFallback(leadingSpacing[crossAxis], leading[crossAxis]);
|
||||
// TODO(prenaux): Correctly set the height of items with undefined
|
||||
// (auto) crossAxis dimension.
|
||||
}
|
||||
}
|
||||
|
||||
currentLead += lineHeight;
|
||||
}
|
||||
}
|
||||
|
||||
boolean needsMainTrailingPos = false;
|
||||
boolean needsCrossTrailingPos = false;
|
||||
|
||||
// If the user didn't specify a width or height, and it has not been set
|
||||
// by the container, then we set it via the children.
|
||||
if (!isMainDimDefined) {
|
||||
node.layout.dimensions[dim[mainAxis]] = Math.Max(
|
||||
// We're missing the last padding at this point to get the final
|
||||
// dimension
|
||||
boundAxis(node, mainAxis, linesMainDim + (node.style.padding.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]) + node.style.border.getWithFallback(trailingSpacing[mainAxis], trailing[mainAxis]))),
|
||||
// We can never assign a width smaller than the padding and borders
|
||||
paddingAndBorderAxisMain
|
||||
);
|
||||
|
||||
if (mainAxis == CSS_FLEX_DIRECTION_ROW_REVERSE ||
|
||||
mainAxis == CSS_FLEX_DIRECTION_COLUMN_REVERSE) {
|
||||
needsMainTrailingPos = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (!isCrossDimDefined) {
|
||||
node.layout.dimensions[dim[crossAxis]] = Math.Max(
|
||||
// For the cross dim, we add both sides at the end because the value
|
||||
// is aggregate via a max function. Intermediate negative values
|
||||
// can mess this computation otherwise
|
||||
boundAxis(node, crossAxis, linesCrossDim + paddingAndBorderAxisCross),
|
||||
paddingAndBorderAxisCross
|
||||
);
|
||||
|
||||
if (crossAxis == CSS_FLEX_DIRECTION_ROW_REVERSE ||
|
||||
crossAxis == CSS_FLEX_DIRECTION_COLUMN_REVERSE) {
|
||||
needsCrossTrailingPos = true;
|
||||
}
|
||||
}
|
||||
|
||||
// <Loop F> Set trailing position if necessary
|
||||
if (needsMainTrailingPos || needsCrossTrailingPos) {
|
||||
for (i = 0; i < childCount; ++i) {
|
||||
child = node.getChildAt(i);
|
||||
|
||||
if (needsMainTrailingPos) {
|
||||
child.layout.position[trailing[mainAxis]] = node.layout.dimensions[dim[mainAxis]] - child.layout.dimensions[dim[mainAxis]] - child.layout.position[pos[mainAxis]];
|
||||
}
|
||||
|
||||
if (needsCrossTrailingPos) {
|
||||
child.layout.position[trailing[crossAxis]] = node.layout.dimensions[dim[crossAxis]] - child.layout.dimensions[dim[crossAxis]] - child.layout.position[pos[crossAxis]];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// <Loop G> Calculate dimensions for absolutely positioned elements
|
||||
currentAbsoluteChild = firstAbsoluteChild;
|
||||
while (currentAbsoluteChild != null) {
|
||||
// Pre-fill dimensions when using absolute position and both offsets for
|
||||
// the axis are defined (either both left and right or top and bottom).
|
||||
for (ii = 0; ii < 2; ii++) {
|
||||
axis = (ii != 0) ? CSS_FLEX_DIRECTION_ROW : CSS_FLEX_DIRECTION_COLUMN;
|
||||
|
||||
if (!float.IsNaN(node.layout.dimensions[dim[axis]]) &&
|
||||
!(!float.IsNaN(currentAbsoluteChild.style.dimensions[dim[axis]]) && currentAbsoluteChild.style.dimensions[dim[axis]] > 0.0) &&
|
||||
!float.IsNaN(currentAbsoluteChild.style.position[leading[axis]]) &&
|
||||
!float.IsNaN(currentAbsoluteChild.style.position[trailing[axis]])) {
|
||||
currentAbsoluteChild.layout.dimensions[dim[axis]] = Math.Max(
|
||||
boundAxis(currentAbsoluteChild, axis, node.layout.dimensions[dim[axis]] -
|
||||
(node.style.border.getWithFallback(leadingSpacing[axis], leading[axis]) + node.style.border.getWithFallback(trailingSpacing[axis], trailing[axis])) -
|
||||
(currentAbsoluteChild.style.margin.getWithFallback(leadingSpacing[axis], leading[axis]) + currentAbsoluteChild.style.margin.getWithFallback(trailingSpacing[axis], trailing[axis])) -
|
||||
(float.IsNaN(currentAbsoluteChild.style.position[leading[axis]]) ? 0 : currentAbsoluteChild.style.position[leading[axis]]) -
|
||||
(float.IsNaN(currentAbsoluteChild.style.position[trailing[axis]]) ? 0 : currentAbsoluteChild.style.position[trailing[axis]])
|
||||
),
|
||||
// You never want to go smaller than padding
|
||||
((currentAbsoluteChild.style.padding.getWithFallback(leadingSpacing[axis], leading[axis]) + currentAbsoluteChild.style.border.getWithFallback(leadingSpacing[axis], leading[axis])) + (currentAbsoluteChild.style.padding.getWithFallback(trailingSpacing[axis], trailing[axis]) + currentAbsoluteChild.style.border.getWithFallback(trailingSpacing[axis], trailing[axis])))
|
||||
);
|
||||
}
|
||||
|
||||
if (!float.IsNaN(currentAbsoluteChild.style.position[trailing[axis]]) &&
|
||||
!!float.IsNaN(currentAbsoluteChild.style.position[leading[axis]])) {
|
||||
currentAbsoluteChild.layout.position[leading[axis]] =
|
||||
node.layout.dimensions[dim[axis]] -
|
||||
currentAbsoluteChild.layout.dimensions[dim[axis]] -
|
||||
(float.IsNaN(currentAbsoluteChild.style.position[trailing[axis]]) ? 0 : currentAbsoluteChild.style.position[trailing[axis]]);
|
||||
}
|
||||
}
|
||||
|
||||
child = currentAbsoluteChild;
|
||||
currentAbsoluteChild = currentAbsoluteChild.nextAbsoluteChild;
|
||||
child.nextAbsoluteChild = null;
|
||||
}
|
||||
}
|
||||
/** END_GENERATED **/
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user