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var InvalidPropertyError = require('../invalid-property-error');
var wrapSingle = require('../wrap-for-optimizing').single;
var Token = require('../../tokenizer/token');
var Marker = require('../../tokenizer/marker');
var formatPosition = require('../../utils/format-position');
function _anyIsInherit(values) {
var i, l;
for (i = 0, l = values.length; i < l; i++) {
if (values[i][1] == 'inherit') {
return true;
}
}
return false;
}
function _colorFilter(validator) {
return function (value) {
return value[1] == 'invert' || validator.isColor(value[1]) || validator.isPrefixed(value[1]);
};
}
function _styleFilter(validator) {
return function (value) {
return value[1] != 'inherit' && validator.isStyleKeyword(value[1]) && !validator.isColorFunction(value[1]);
};
}
function _wrapDefault(name, property, configuration) {
var descriptor = configuration[name];
if (descriptor.doubleValues && descriptor.defaultValue.length == 2) {
return wrapSingle([
Token.PROPERTY,
[Token.PROPERTY_NAME, name],
[Token.PROPERTY_VALUE, descriptor.defaultValue[0]],
[Token.PROPERTY_VALUE, descriptor.defaultValue[1]]
]);
} else if (descriptor.doubleValues && descriptor.defaultValue.length == 1) {
return wrapSingle([
Token.PROPERTY,
[Token.PROPERTY_NAME, name],
[Token.PROPERTY_VALUE, descriptor.defaultValue[0]]
]);
} else {
return wrapSingle([
Token.PROPERTY,
[Token.PROPERTY_NAME, name],
[Token.PROPERTY_VALUE, descriptor.defaultValue]
]);
}
}
function _widthFilter(validator) {
return function (value) {
return value[1] != 'inherit' &&
(validator.isWidth(value[1]) || validator.isUnit(value[1]) || validator.isDynamicUnit(value[1])) &&
!validator.isStyleKeyword(value[1]) &&
!validator.isColorFunction(value[1]);
};
}
function animation(property, configuration, validator) {
var duration = _wrapDefault(property.name + '-duration', property, configuration);
var timing = _wrapDefault(property.name + '-timing-function', property, configuration);
var delay = _wrapDefault(property.name + '-delay', property, configuration);
var iteration = _wrapDefault(property.name + '-iteration-count', property, configuration);
var direction = _wrapDefault(property.name + '-direction', property, configuration);
var fill = _wrapDefault(property.name + '-fill-mode', property, configuration);
var play = _wrapDefault(property.name + '-play-state', property, configuration);
var name = _wrapDefault(property.name + '-name', property, configuration);
var components = [duration, timing, delay, iteration, direction, fill, play, name];
var values = property.value;
var value;
var durationSet = false;
var timingSet = false;
var delaySet = false;
var iterationSet = false;
var directionSet = false;
var fillSet = false;
var playSet = false;
var nameSet = false;
var i;
var l;
if (property.value.length == 1 && property.value[0][1] == 'inherit') {
duration.value = timing.value = delay.value = iteration.value = direction.value = fill.value = play.value = name.value = property.value;
return components;
}
if (values.length > 1 && _anyIsInherit(values)) {
throw new InvalidPropertyError('Invalid animation values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
for (i = 0, l = values.length; i < l; i++) {
value = values[i];
if (validator.isTime(value[1]) && !durationSet) {
duration.value = [value];
durationSet = true;
} else if (validator.isTime(value[1]) && !delaySet) {
delay.value = [value];
delaySet = true;
} else if ((validator.isGlobal(value[1]) || validator.isTimingFunction(value[1])) && !timingSet) {
timing.value = [value];
timingSet = true;
} else if ((validator.isAnimationIterationCountKeyword(value[1]) || validator.isPositiveNumber(value[1])) && !iterationSet) {
iteration.value = [value];
iterationSet = true;
} else if (validator.isAnimationDirectionKeyword(value[1]) && !directionSet) {
direction.value = [value];
directionSet = true;
} else if (validator.isAnimationFillModeKeyword(value[1]) && !fillSet) {
fill.value = [value];
fillSet = true;
} else if (validator.isAnimationPlayStateKeyword(value[1]) && !playSet) {
play.value = [value];
playSet = true;
} else if ((validator.isAnimationNameKeyword(value[1]) || validator.isIdentifier(value[1])) && !nameSet) {
name.value = [value];
nameSet = true;
} else {
throw new InvalidPropertyError('Invalid animation value at ' + formatPosition(value[2][0]) + '. Ignoring.');
}
}
return components;
}
function background(property, configuration, validator) {
var image = _wrapDefault('background-image', property, configuration);
var position = _wrapDefault('background-position', property, configuration);
var size = _wrapDefault('background-size', property, configuration);
var repeat = _wrapDefault('background-repeat', property, configuration);
var attachment = _wrapDefault('background-attachment', property, configuration);
var origin = _wrapDefault('background-origin', property, configuration);
var clip = _wrapDefault('background-clip', property, configuration);
var color = _wrapDefault('background-color', property, configuration);
var components = [image, position, size, repeat, attachment, origin, clip, color];
var values = property.value;
var positionSet = false;
var clipSet = false;
var originSet = false;
var repeatSet = false;
var anyValueSet = false;
if (property.value.length == 1 && property.value[0][1] == 'inherit') {
// NOTE: 'inherit' is not a valid value for background-attachment
color.value = image.value = repeat.value = position.value = size.value = origin.value = clip.value = property.value;
return components;
}
if (property.value.length == 1 && property.value[0][1] == '0 0') {
return components;
}
for (var i = values.length - 1; i >= 0; i--) {
var value = values[i];
if (validator.isBackgroundAttachmentKeyword(value[1])) {
attachment.value = [value];
anyValueSet = true;
} else if (validator.isBackgroundClipKeyword(value[1]) || validator.isBackgroundOriginKeyword(value[1])) {
if (clipSet) {
origin.value = [value];
originSet = true;
} else {
clip.value = [value];
clipSet = true;
}
anyValueSet = true;
} else if (validator.isBackgroundRepeatKeyword(value[1])) {
if (repeatSet) {
repeat.value.unshift(value);
} else {
repeat.value = [value];
repeatSet = true;
}
anyValueSet = true;
} else if (validator.isBackgroundPositionKeyword(value[1]) || validator.isBackgroundSizeKeyword(value[1]) || validator.isUnit(value[1]) || validator.isDynamicUnit(value[1])) {
if (i > 0) {
var previousValue = values[i - 1];
if (previousValue[1] == Marker.FORWARD_SLASH) {
size.value = [value];
} else if (i > 1 && values[i - 2][1] == Marker.FORWARD_SLASH) {
size.value = [previousValue, value];
i -= 2;
} else {
if (!positionSet)
position.value = [];
position.value.unshift(value);
positionSet = true;
}
} else {
if (!positionSet)
position.value = [];
position.value.unshift(value);
positionSet = true;
}
anyValueSet = true;
} else if ((color.value[0][1] == configuration[color.name].defaultValue || color.value[0][1] == 'none') && (validator.isColor(value[1]) || validator.isPrefixed(value[1]))) {
color.value = [value];
anyValueSet = true;
} else if (validator.isUrl(value[1]) || validator.isFunction(value[1])) {
image.value = [value];
anyValueSet = true;
}
}
if (clipSet && !originSet)
origin.value = clip.value.slice(0);
if (!anyValueSet) {
throw new InvalidPropertyError('Invalid background value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
return components;
}
function borderRadius(property, configuration) {
var values = property.value;
var splitAt = -1;
for (var i = 0, l = values.length; i < l; i++) {
if (values[i][1] == Marker.FORWARD_SLASH) {
splitAt = i;
break;
}
}
if (splitAt === 0 || splitAt === values.length - 1) {
throw new InvalidPropertyError('Invalid border-radius value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
var target = _wrapDefault(property.name, property, configuration);
target.value = splitAt > -1 ?
values.slice(0, splitAt) :
values.slice(0);
target.components = fourValues(target, configuration);
var remainder = _wrapDefault(property.name, property, configuration);
remainder.value = splitAt > -1 ?
values.slice(splitAt + 1) :
values.slice(0);
remainder.components = fourValues(remainder, configuration);
for (var j = 0; j < 4; j++) {
target.components[j].multiplex = true;
target.components[j].value = target.components[j].value.concat(remainder.components[j].value);
}
return target.components;
}
function font(property, configuration, validator) {
var style = _wrapDefault('font-style', property, configuration);
var variant = _wrapDefault('font-variant', property, configuration);
var weight = _wrapDefault('font-weight', property, configuration);
var stretch = _wrapDefault('font-stretch', property, configuration);
var size = _wrapDefault('font-size', property, configuration);
var height = _wrapDefault('line-height', property, configuration);
var family = _wrapDefault('font-family', property, configuration);
var components = [style, variant, weight, stretch, size, height, family];
var values = property.value;
var fuzzyMatched = 4; // style, variant, weight, and stretch
var index = 0;
var isStretchSet = false;
var isStretchValid;
var isStyleSet = false;
var isStyleValid;
var isVariantSet = false;
var isVariantValid;
var isWeightSet = false;
var isWeightValid;
var isSizeSet = false;
var appendableFamilyName = false;
if (!values[index]) {
throw new InvalidPropertyError('Missing font values at ' + formatPosition(property.all[property.position][1][2][0]) + '. Ignoring.');
}
if (values.length == 1 && values[0][1] == 'inherit') {
style.value = variant.value = weight.value = stretch.value = size.value = height.value = family.value = values;
return components;
}
if (values.length == 1 && (validator.isFontKeyword(values[0][1]) || validator.isGlobal(values[0][1]) || validator.isPrefixed(values[0][1]))) {
values[0][1] = Marker.INTERNAL + values[0][1];
style.value = variant.value = weight.value = stretch.value = size.value = height.value = family.value = values;
return components;
}
if (values.length < 2 || !_anyIsFontSize(values, validator) || !_anyIsFontFamily(values, validator)) {
throw new InvalidPropertyError('Invalid font values at ' + formatPosition(property.all[property.position][1][2][0]) + '. Ignoring.');
}
if (values.length > 1 && _anyIsInherit(values)) {
throw new InvalidPropertyError('Invalid font values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
// fuzzy match style, variant, weight, and stretch on first elements
while (index < fuzzyMatched) {
isStretchValid = validator.isFontStretchKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
isStyleValid = validator.isFontStyleKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
isVariantValid = validator.isFontVariantKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
isWeightValid = validator.isFontWeightKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
if (isStyleValid && !isStyleSet) {
style.value = [values[index]];
isStyleSet = true;
} else if (isVariantValid && !isVariantSet) {
variant.value = [values[index]];
isVariantSet = true;
} else if (isWeightValid && !isWeightSet) {
weight.value = [values[index]];
isWeightSet = true;
} else if (isStretchValid && !isStretchSet) {
stretch.value = [values[index]];
isStretchSet = true;
} else if (isStyleValid && isStyleSet || isVariantValid && isVariantSet || isWeightValid && isWeightSet || isStretchValid && isStretchSet) {
throw new InvalidPropertyError('Invalid font style / variant / weight / stretch value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
} else {
break;
}
index++;
}
// now comes font-size ...
if (validator.isFontSizeKeyword(values[index][1]) || validator.isUnit(values[index][1]) && !validator.isDynamicUnit(values[index][1])) {
size.value = [values[index]];
isSizeSet = true;
index++;
} else {
throw new InvalidPropertyError('Missing font size at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
if (!values[index]) {
throw new InvalidPropertyError('Missing font family at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
// ... and perhaps line-height
if (isSizeSet && values[index] && values[index][1] == Marker.FORWARD_SLASH && values[index + 1] && (validator.isLineHeightKeyword(values[index + 1][1]) || validator.isUnit(values[index + 1][1]) || validator.isNumber(values[index + 1][1]))) {
height.value = [values[index + 1]];
index++;
index++;
}
// ... and whatever comes next is font-family
family.value = [];
while (values[index]) {
if (values[index][1] == Marker.COMMA) {
appendableFamilyName = false;
} else {
if (appendableFamilyName) {
family.value[family.value.length - 1][1] += Marker.SPACE + values[index][1];
} else {
family.value.push(values[index]);
}
appendableFamilyName = true;
}
index++;
}
if (family.value.length === 0) {
throw new InvalidPropertyError('Missing font family at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
return components;
}
function _anyIsFontSize(values, validator) {
var value;
var i, l;
for (i = 0, l = values.length; i < l; i++) {
value = values[i];
if (validator.isFontSizeKeyword(value[1]) || validator.isUnit(value[1]) && !validator.isDynamicUnit(value[1]) || validator.isFunction(value[1])) {
return true;
}
}
return false;
}
function _anyIsFontFamily(values, validator) {
var value;
var i, l;
for (i = 0, l = values.length; i < l; i++) {
value = values[i];
if (validator.isIdentifier(value[1]) || validator.isQuotedText(value[1])) {
return true;
}
}
return false;
}
function fourValues(property, configuration) {
var componentNames = configuration[property.name].components;
var components = [];
var value = property.value;
if (value.length < 1)
return [];
if (value.length < 2)
value[1] = value[0].slice(0);
if (value.length < 3)
value[2] = value[0].slice(0);
if (value.length < 4)
value[3] = value[1].slice(0);
for (var i = componentNames.length - 1; i >= 0; i--) {
var component = wrapSingle([
Token.PROPERTY,
[Token.PROPERTY_NAME, componentNames[i]]
]);
component.value = [value[i]];
components.unshift(component);
}
return components;
}
function multiplex(splitWith) {
return function (property, configuration, validator) {
var splitsAt = [];
var values = property.value;
var i, j, l, m;
// find split commas
for (i = 0, l = values.length; i < l; i++) {
if (values[i][1] == ',')
splitsAt.push(i);
}
if (splitsAt.length === 0)
return splitWith(property, configuration, validator);
var splitComponents = [];
// split over commas, and into components
for (i = 0, l = splitsAt.length; i <= l; i++) {
var from = i === 0 ? 0 : splitsAt[i - 1] + 1;
var to = i < l ? splitsAt[i] : values.length;
var _property = _wrapDefault(property.name, property, configuration);
_property.value = values.slice(from, to);
splitComponents.push(splitWith(_property, configuration, validator));
}
var components = splitComponents[0];
// group component values from each split
for (i = 0, l = components.length; i < l; i++) {
components[i].multiplex = true;
for (j = 1, m = splitComponents.length; j < m; j++) {
components[i].value.push([Token.PROPERTY_VALUE, Marker.COMMA]);
Array.prototype.push.apply(components[i].value, splitComponents[j][i].value);
}
}
return components;
};
}
function listStyle(property, configuration, validator) {
var type = _wrapDefault('list-style-type', property, configuration);
var position = _wrapDefault('list-style-position', property, configuration);
var image = _wrapDefault('list-style-image', property, configuration);
var components = [type, position, image];
if (property.value.length == 1 && property.value[0][1] == 'inherit') {
type.value = position.value = image.value = [property.value[0]];
return components;
}
var values = property.value.slice(0);
var total = values.length;
var index = 0;
// `image` first...
for (index = 0, total = values.length; index < total; index++) {
if (validator.isUrl(values[index][1]) || values[index][1] == '0') {
image.value = [values[index]];
values.splice(index, 1);
break;
}
}
// ... then `position`
for (index = 0, total = values.length; index < total; index++) {
if (validator.isListStylePositionKeyword(values[index][1])) {
position.value = [values[index]];
values.splice(index, 1);
break;
}
}
// ... and what's left is a `type`
if (values.length > 0 && (validator.isListStyleTypeKeyword(values[0][1]) || validator.isIdentifier(values[0][1]))) {
type.value = [values[0]];
}
return components;
}
function transition(property, configuration, validator) {
var prop = _wrapDefault(property.name + '-property', property, configuration);
var duration = _wrapDefault(property.name + '-duration', property, configuration);
var timing = _wrapDefault(property.name + '-timing-function', property, configuration);
var delay = _wrapDefault(property.name + '-delay', property, configuration);
var components = [prop, duration, timing, delay];
var values = property.value;
var value;
var durationSet = false;
var delaySet = false;
var propSet = false;
var timingSet = false;
var i;
var l;
if (property.value.length == 1 && property.value[0][1] == 'inherit') {
prop.value = duration.value = timing.value = delay.value = property.value;
return components;
}
if (values.length > 1 && _anyIsInherit(values)) {
throw new InvalidPropertyError('Invalid animation values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
}
for (i = 0, l = values.length; i < l; i++) {
value = values[i];
if (validator.isTime(value[1]) && !durationSet) {
duration.value = [value];
durationSet = true;
} else if (validator.isTime(value[1]) && !delaySet) {
delay.value = [value];
delaySet = true;
} else if ((validator.isGlobal(value[1]) || validator.isTimingFunction(value[1])) && !timingSet) {
timing.value = [value];
timingSet = true;
} else if (validator.isIdentifier(value[1]) && !propSet) {
prop.value = [value];
propSet = true;
} else {
throw new InvalidPropertyError('Invalid animation value at ' + formatPosition(value[2][0]) + '. Ignoring.');
}
}
return components;
}
function widthStyleColor(property, configuration, validator) {
var descriptor = configuration[property.name];
var components = [
_wrapDefault(descriptor.components[0], property, configuration),
_wrapDefault(descriptor.components[1], property, configuration),
_wrapDefault(descriptor.components[2], property, configuration)
];
var color, style, width;
for (var i = 0; i < 3; i++) {
var component = components[i];
if (component.name.indexOf('color') > 0)
color = component;
else if (component.name.indexOf('style') > 0)
style = component;
else
width = component;
}
if ((property.value.length == 1 && property.value[0][1] == 'inherit') ||
(property.value.length == 3 && property.value[0][1] == 'inherit' && property.value[1][1] == 'inherit' && property.value[2][1] == 'inherit')) {
color.value = style.value = width.value = [property.value[0]];
return components;
}
var values = property.value.slice(0);
var match, matches;
// NOTE: usually users don't follow the required order of parts in this shorthand,
// so we'll try to parse it caring as little about order as possible
if (values.length > 0) {
matches = values.filter(_widthFilter(validator));
match = matches.length > 1 && (matches[0][1] == 'none' || matches[0][1] == 'auto') ? matches[1] : matches[0];
if (match) {
width.value = [match];
values.splice(values.indexOf(match), 1);
}
}
if (values.length > 0) {
match = values.filter(_styleFilter(validator))[0];
if (match) {
style.value = [match];
values.splice(values.indexOf(match), 1);
}
}
if (values.length > 0) {
match = values.filter(_colorFilter(validator))[0];
if (match) {
color.value = [match];
values.splice(values.indexOf(match), 1);
}
}
return components;
}
module.exports = {
animation: animation,
background: background,
border: widthStyleColor,
borderRadius: borderRadius,
font: font,
fourValues: fourValues,
listStyle: listStyle,
multiplex: multiplex,
outline: widthStyleColor,
transition: transition
};