setShorthandBorder static method
Implementation
static void setShorthandBorder(Map<String, String?> properties, String property, String shorthandValue) {
// If the entire shorthand is a single var(...) function, defer parsing to
// compute time by assigning the same var(...) token to all relevant
// longhands for the affected edges. Each longhand will later resolve the
// var to a full shorthand string (e.g., "2px solid red") and extract its
// own component.
bool _isEntireVarFunction(String s) {
final String trimmed = s.trimLeft();
if (!trimmed.startsWith('var(')) return false;
int start = trimmed.indexOf('(');
int depth = 0;
for (int i = start; i < trimmed.length; i++) {
final int ch = trimmed.codeUnitAt(i);
if (ch == 40) {
depth++;
} else if (ch == 41) {
depth--;
if (depth == 0) {
final rest = trimmed.substring(i + 1).trim();
return rest.isEmpty;
}
}
}
return false;
}
if (property == BORDER ||
property == BORDER_TOP ||
property == BORDER_RIGHT ||
property == BORDER_BOTTOM ||
property == BORDER_LEFT ||
property == BORDER_INLINE_START ||
property == BORDER_INLINE_END ||
property == BORDER_BLOCK_START ||
property == BORDER_BLOCK_END) {
if (_isEntireVarFunction(shorthandValue)) {
// Apply the same var(...) to width/style/color for the specified edges.
void applyEdge(String edge) {
switch (edge) {
case 'top':
properties[BORDER_TOP_WIDTH] = shorthandValue;
properties[BORDER_TOP_STYLE] = shorthandValue;
properties[BORDER_TOP_COLOR] = shorthandValue;
break;
case 'right':
properties[BORDER_RIGHT_WIDTH] = shorthandValue;
properties[BORDER_RIGHT_STYLE] = shorthandValue;
properties[BORDER_RIGHT_COLOR] = shorthandValue;
break;
case 'bottom':
properties[BORDER_BOTTOM_WIDTH] = shorthandValue;
properties[BORDER_BOTTOM_STYLE] = shorthandValue;
properties[BORDER_BOTTOM_COLOR] = shorthandValue;
break;
case 'left':
properties[BORDER_LEFT_WIDTH] = shorthandValue;
properties[BORDER_LEFT_STYLE] = shorthandValue;
properties[BORDER_LEFT_COLOR] = shorthandValue;
break;
case 'inlineStart':
properties[BORDER_INLINE_START_WIDTH] = shorthandValue;
properties[BORDER_INLINE_START_STYLE] = shorthandValue;
properties[BORDER_INLINE_START_COLOR] = shorthandValue;
break;
case 'inlineEnd':
properties[BORDER_INLINE_END_WIDTH] = shorthandValue;
properties[BORDER_INLINE_END_STYLE] = shorthandValue;
properties[BORDER_INLINE_END_COLOR] = shorthandValue;
break;
case 'blockStart':
properties[BORDER_BLOCK_START_WIDTH] = shorthandValue;
properties[BORDER_BLOCK_START_STYLE] = shorthandValue;
properties[BORDER_BLOCK_START_COLOR] = shorthandValue;
break;
case 'blockEnd':
properties[BORDER_BLOCK_END_WIDTH] = shorthandValue;
properties[BORDER_BLOCK_END_STYLE] = shorthandValue;
properties[BORDER_BLOCK_END_COLOR] = shorthandValue;
break;
}
}
if (property == BORDER || property == BORDER_TOP) applyEdge('top');
if (property == BORDER || property == BORDER_RIGHT) applyEdge('right');
if (property == BORDER || property == BORDER_BOTTOM) applyEdge('bottom');
if (property == BORDER || property == BORDER_LEFT) applyEdge('left');
if (property == BORDER_INLINE_START) applyEdge('inlineStart');
if (property == BORDER_INLINE_END) applyEdge('inlineEnd');
if (property == BORDER_BLOCK_START) applyEdge('blockStart');
if (property == BORDER_BLOCK_END) applyEdge('blockEnd');
return;
}
}
String? borderTopColor;
String? borderRightColor;
String? borderBottomColor;
String? borderLeftColor;
String? borderTopStyle;
String? borderRightStyle;
String? borderBottomStyle;
String? borderLeftStyle;
String? borderTopWidth;
String? borderRightWidth;
String? borderBottomWidth;
String? borderLeftWidth;
String? borderInlineStartWidth;
String? borderInlineStartStyle;
String? borderInlineStartColor;
String? borderInlineEndWidth;
String? borderInlineEndStyle;
String? borderInlineEndColor;
String? borderBlockStartWidth;
String? borderBlockStartStyle;
String? borderBlockStartColor;
String? borderBlockEndWidth;
String? borderBlockEndStyle;
String? borderBlockEndColor;
if (property == BORDER ||
property == BORDER_TOP ||
property == BORDER_RIGHT ||
property == BORDER_BOTTOM ||
property == BORDER_LEFT ||
property == BORDER_INLINE_START ||
property == BORDER_INLINE_END ||
property == BORDER_BLOCK_START ||
property == BORDER_BLOCK_END) {
List<String?>? values = CSSStyleProperty._getBorderValues(shorthandValue);
if (values == null) return;
if (property == BORDER || property == BORDER_TOP) {
borderTopWidth = values[0];
borderTopStyle = values[1];
borderTopColor = values[2];
}
if (property == BORDER || property == BORDER_RIGHT) {
borderRightWidth = values[0];
borderRightStyle = values[1];
borderRightColor = values[2];
}
if (property == BORDER || property == BORDER_BOTTOM) {
borderBottomWidth = values[0];
borderBottomStyle = values[1];
borderBottomColor = values[2];
}
if (property == BORDER || property == BORDER_LEFT) {
borderLeftWidth = values[0];
borderLeftStyle = values[1];
borderLeftColor = values[2];
}
// Logical properties for LTR mode
if (property == BORDER_INLINE_START) {
borderInlineStartWidth = values[0];
borderInlineStartStyle = values[1];
borderInlineStartColor = values[2];
}
if (property == BORDER_INLINE_END) {
borderInlineEndWidth = values[0];
borderInlineEndStyle = values[1];
borderInlineEndColor = values[2];
}
if (property == BORDER_BLOCK_START) {
borderBlockStartWidth = values[0];
borderBlockStartStyle = values[1];
borderBlockStartColor = values[2];
}
if (property == BORDER_BLOCK_END) {
borderBlockEndWidth = values[0];
borderBlockEndStyle = values[1];
borderBlockEndColor = values[2];
}
} else if (property == BORDER_WIDTH) {
List<String?>? values = getEdgeValues(shorthandValue);
if (values == null) return;
borderTopWidth = values[0];
borderRightWidth = values[1];
borderBottomWidth = values[2];
borderLeftWidth = values[3];
} else if (property == BORDER_STYLE) {
// @TODO: validate value
List<String?>? values = getEdgeValues(shorthandValue);
if (values == null) return;
borderTopStyle = values[0];
borderRightStyle = values[1];
borderBottomStyle = values[2];
borderLeftStyle = values[3];
} else if (property == BORDER_COLOR) {
// @TODO: validate value
List<String?>? values = getEdgeValues(shorthandValue);
if (values == null) return;
borderTopColor = values[0];
borderRightColor = values[1];
borderBottomColor = values[2];
borderLeftColor = values[3];
}
if (borderTopColor != null) properties[BORDER_TOP_COLOR] = borderTopColor;
if (borderRightColor != null) properties[BORDER_RIGHT_COLOR] = borderRightColor;
if (borderBottomColor != null) properties[BORDER_BOTTOM_COLOR] = borderBottomColor;
if (borderLeftColor != null) properties[BORDER_LEFT_COLOR] = borderLeftColor;
if (borderTopStyle != null) properties[BORDER_TOP_STYLE] = borderTopStyle;
if (borderRightStyle != null) properties[BORDER_RIGHT_STYLE] = borderRightStyle;
if (borderBottomStyle != null) properties[BORDER_BOTTOM_STYLE] = borderBottomStyle;
if (borderLeftStyle != null) properties[BORDER_LEFT_STYLE] = borderLeftStyle;
if (borderTopWidth != null) properties[BORDER_TOP_WIDTH] = borderTopWidth;
if (borderRightWidth != null) properties[BORDER_RIGHT_WIDTH] = borderRightWidth;
if (borderBottomWidth != null) properties[BORDER_BOTTOM_WIDTH] = borderBottomWidth;
if (borderLeftWidth != null) properties[BORDER_LEFT_WIDTH] = borderLeftWidth;
// Logical properties
if (borderInlineStartWidth != null) properties[BORDER_INLINE_START_WIDTH] = borderInlineStartWidth;
if (borderInlineStartStyle != null) properties[BORDER_INLINE_START_STYLE] = borderInlineStartStyle;
if (borderInlineStartColor != null) properties[BORDER_INLINE_START_COLOR] = borderInlineStartColor;
if (borderInlineEndWidth != null) properties[BORDER_INLINE_END_WIDTH] = borderInlineEndWidth;
if (borderInlineEndStyle != null) properties[BORDER_INLINE_END_STYLE] = borderInlineEndStyle;
if (borderInlineEndColor != null) properties[BORDER_INLINE_END_COLOR] = borderInlineEndColor;
if (borderBlockStartWidth != null) properties[BORDER_BLOCK_START_WIDTH] = borderBlockStartWidth;
if (borderBlockStartStyle != null) properties[BORDER_BLOCK_START_STYLE] = borderBlockStartStyle;
if (borderBlockStartColor != null) properties[BORDER_BLOCK_START_COLOR] = borderBlockStartColor;
if (borderBlockEndWidth != null) properties[BORDER_BLOCK_END_WIDTH] = borderBlockEndWidth;
if (borderBlockEndStyle != null) properties[BORDER_BLOCK_END_STYLE] = borderBlockEndStyle;
if (borderBlockEndColor != null) properties[BORDER_BLOCK_END_COLOR] = borderBlockEndColor;
}
