can-override.js
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var understandable = require('./properties/understandable');
function backgroundPosition(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidKeywordValue('background-position', value2, true)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
} else if (validator.isValidKeywordValue('background-position', value2, true)) {
return true;
}
return unit(validator, value1, value2);
}
function backgroundSize(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidKeywordValue('background-size', value2, true)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
} else if (validator.isValidKeywordValue('background-size', value2, true)) {
return true;
}
return unit(validator, value1, value2);
}
function color(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidColor(value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
} else if (!validator.colorOpacity && (validator.isValidRgbaColor(value1) || validator.isValidHslaColor(value1))) {
return false;
} else if (!validator.colorOpacity && (validator.isValidRgbaColor(value2) || validator.isValidHslaColor(value2))) {
return false;
} else if (validator.isValidColor(value1) && validator.isValidColor(value2)) {
return true;
}
return sameFunctionOrValue(validator, value1, value2);
}
function components(overrideCheckers) {
return function (validator, value1, value2, position) {
return overrideCheckers[position](validator, value1, value2);
};
}
function image(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidImage(value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
} else if (validator.isValidImage(value2)) {
return true;
} else if (validator.isValidImage(value1)) {
return false;
}
return sameFunctionOrValue(validator, value1, value2);
}
function keyword(propertyName) {
return function(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidKeywordValue(propertyName, value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
}
return validator.isValidKeywordValue(propertyName, value2, false);
};
}
function keywordWithGlobal(propertyName) {
return function(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidKeywordValue(propertyName, value2, true)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
}
return validator.isValidKeywordValue(propertyName, value2, true);
};
}
function sameFunctionOrValue(validator, value1, value2) {
return validator.areSameFunction(value1, value2) ?
true :
value1 === value2;
}
function textShadow(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidTextShadow(value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
}
return validator.isValidTextShadow(value2);
}
function unit(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidUnitWithoutFunction(value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
} else if (validator.isValidUnitWithoutFunction(value1) && !validator.isValidUnitWithoutFunction(value2)) {
return false;
} else if (validator.isValidUnitWithoutFunction(value2)) {
return true;
} else if (validator.isValidUnitWithoutFunction(value1)) {
return false;
} else if (validator.isValidFunctionWithoutVendorPrefix(value1) && validator.isValidFunctionWithoutVendorPrefix(value2)) {
return true;
}
return sameFunctionOrValue(validator, value1, value2);
}
function unitOrKeywordWithGlobal(propertyName) {
var byKeyword = keywordWithGlobal(propertyName);
return function(validator, value1, value2) {
return unit(validator, value1, value2) || byKeyword(validator, value1, value2);
};
}
function zIndex(validator, value1, value2) {
if (!understandable(validator, value1, value2, 0, true) && !validator.isValidZIndex(value2)) {
return false;
} else if (validator.isValidVariable(value1) && validator.isValidVariable(value2)) {
return true;
}
return validator.isValidZIndex(value2);
}
module.exports = {
generic: {
color: color,
components: components,
image: image,
unit: unit
},
property: {
backgroundAttachment: keyword('background-attachment'),
backgroundClip: keywordWithGlobal('background-clip'),
backgroundOrigin: keyword('background-origin'),
backgroundPosition: backgroundPosition,
backgroundRepeat: keyword('background-repeat'),
backgroundSize: backgroundSize,
bottom: unitOrKeywordWithGlobal('bottom'),
borderCollapse: keyword('border-collapse'),
borderStyle: keywordWithGlobal('*-style'),
clear: keywordWithGlobal('clear'),
cursor: keywordWithGlobal('cursor'),
display: keywordWithGlobal('display'),
float: keywordWithGlobal('float'),
fontStyle: keywordWithGlobal('font-style'),
left: unitOrKeywordWithGlobal('left'),
fontWeight: keywordWithGlobal('font-weight'),
listStyleType: keywordWithGlobal('list-style-type'),
listStylePosition: keywordWithGlobal('list-style-position'),
outlineStyle: keywordWithGlobal('*-style'),
overflow: keywordWithGlobal('overflow'),
position: keywordWithGlobal('position'),
right: unitOrKeywordWithGlobal('right'),
textAlign: keywordWithGlobal('text-align'),
textDecoration: keywordWithGlobal('text-decoration'),
textOverflow: keywordWithGlobal('text-overflow'),
textShadow: textShadow,
top: unitOrKeywordWithGlobal('top'),
transform: sameFunctionOrValue,
verticalAlign: unitOrKeywordWithGlobal('vertical-align'),
visibility: keywordWithGlobal('visibility'),
whiteSpace: keywordWithGlobal('white-space'),
zIndex: zIndex
}
};