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-rw-r--r--devtools/shared/css/color.js32
-rw-r--r--devtools/shared/fronts/css-properties.js34
2 files changed, 55 insertions, 11 deletions
diff --git a/devtools/shared/css/color.js b/devtools/shared/css/color.js
index b354043d7..98ddeff19 100644
--- a/devtools/shared/css/color.js
+++ b/devtools/shared/css/color.js
@@ -28,6 +28,10 @@ const SPECIALVALUES = new Set([
* Usage:
* let {colorUtils} = require("devtools/shared/css/color");
* let color = new colorUtils.CssColor("red");
+ * // In order to support css-color-4 color function, pass true to the
+ * // second argument.
+ * // e.g.
+ * // let color = new colorUtils.CssColor("red", true);
*
* color.authored === "red"
* color.hasAlpha === false
@@ -58,8 +62,9 @@ const SPECIALVALUES = new Set([
* Valid values for COLOR_UNIT_PREF are contained in CssColor.COLORUNIT.
*/
-function CssColor(colorValue) {
+function CssColor(colorValue, supportsCssColor4ColorFunction = false) {
this.newColor(colorValue);
+ this.cssColor4 = supportsCssColor4ColorFunction;
}
module.exports.colorUtils = {
@@ -92,6 +97,9 @@ CssColor.prototype = {
// A lower-cased copy of |authored|.
lowerCased: null,
+ // Whether the value should be parsed using css-color-4 rules.
+ cssColor4: false,
+
_setColorUnitUppercase: function (color) {
// Specifically exclude the case where the color is
// case-insensitive. This makes it so that "#000" isn't
@@ -136,7 +144,7 @@ CssColor.prototype = {
},
get valid() {
- return isValidCSSColor(this.authored);
+ return isValidCSSColor(this.authored, this.cssColor4);
},
/**
@@ -393,7 +401,7 @@ CssColor.prototype = {
* appropriate.
*/
_getRGBATuple: function () {
- let tuple = colorToRGBA(this.authored);
+ let tuple = colorToRGBA(this.authored, this.cssColor4);
tuple.a = parseFloat(tuple.a.toFixed(1));
@@ -481,11 +489,13 @@ function roundTo(number, digits) {
* Color in the form of hex, hsl, hsla, rgb, rgba.
* @param {Number} alpha
* Alpha value for the color, between 0 and 1.
+ * @param {Boolean} useCssColor4ColorFunction
+ * use css-color-4 color function or not.
* @return {String}
* Converted color with `alpha` value in rgba form.
*/
-function setAlpha(colorValue, alpha) {
- let color = new CssColor(colorValue);
+function setAlpha(colorValue, alpha, useCssColor4ColorFunction = false) {
+ let color = new CssColor(colorValue, useCssColor4ColorFunction);
// Throw if the color supplied is not valid.
if (!color.valid) {
@@ -1049,12 +1059,11 @@ function parseOldStyleRgb(lexer, hasAlpha) {
* color's components. Any valid CSS color form can be passed in.
*
* @param {String} name the color
- * @param {Boolean} oldColorFunctionSyntax use old color function syntax or the
- * css-color-4 syntax
+ * @param {Boolean} useCssColor4ColorFunction use css-color-4 color function or not.
* @return {Object} an object of the form {r, g, b, a}; or null if the
* name was not a valid color
*/
-function colorToRGBA(name, oldColorFunctionSyntax = true) {
+function colorToRGBA(name, useCssColor4ColorFunction = false) {
name = name.trim().toLowerCase();
if (name in cssColors) {
@@ -1089,7 +1098,7 @@ function colorToRGBA(name, oldColorFunctionSyntax = true) {
let hsl = func.text === "hsl" || func.text === "hsla";
let vals;
- if (oldColorFunctionSyntax) {
+ if (!useCssColor4ColorFunction) {
let hasAlpha = (func.text === "rgba" || func.text === "hsla");
vals = hsl ? parseOldStyleHsl(lexer, hasAlpha) : parseOldStyleRgb(lexer, hasAlpha);
} else {
@@ -1110,8 +1119,9 @@ function colorToRGBA(name, oldColorFunctionSyntax = true) {
* Check whether a string names a valid CSS color.
*
* @param {String} name The string to check
+ * @param {Boolean} useCssColor4ColorFunction use css-color-4 color function or not.
* @return {Boolean} True if the string is a CSS color name.
*/
-function isValidCSSColor(name) {
- return colorToRGBA(name) !== null;
+function isValidCSSColor(name, useCssColor4ColorFunction = false) {
+ return colorToRGBA(name, useCssColor4ColorFunction) !== null;
}
diff --git a/devtools/shared/fronts/css-properties.js b/devtools/shared/fronts/css-properties.js
index 9b3172a22..d61bb4b07 100644
--- a/devtools/shared/fronts/css-properties.js
+++ b/devtools/shared/fronts/css-properties.js
@@ -47,6 +47,20 @@ const CssPropertiesFront = FrontClassWithSpec(cssPropertiesSpec, {
});
/**
+ * Query the feature supporting status in the featureSet.
+ *
+ * @param {Hashmap} featureSet the feature set hashmap
+ * @param {String} feature the feature name string
+ * @return {Boolean} has the feature or not
+ */
+function hasFeature(featureSet, feature) {
+ if (feature in featureSet) {
+ return featureSet[feature];
+ }
+ return false;
+}
+
+/**
* Ask questions to a CSS database. This class does not care how the database
* gets loaded in, only the questions that you can ask to it.
* Prototype functions are bound to 'this' so they can be passed around as helper
@@ -62,10 +76,16 @@ function CssProperties(db) {
this.properties = db.properties;
this.pseudoElements = db.pseudoElements;
+ // supported feature
+ this.cssColor4ColorFunction = hasFeature(db.supportedFeature,
+ "css-color-4-color-function");
+
this.isKnown = this.isKnown.bind(this);
this.isInherited = this.isInherited.bind(this);
this.supportsType = this.supportsType.bind(this);
this.isValidOnClient = this.isValidOnClient.bind(this);
+ this.supportsCssColor4ColorFunction =
+ this.supportsCssColor4ColorFunction.bind(this);
// A weakly held dummy HTMLDivElement to test CSS properties on the client.
this._dummyElements = new WeakMap();
@@ -181,6 +201,15 @@ CssProperties.prototype = {
}
return [];
},
+
+ /**
+ * Checking for the css-color-4 color function support.
+ *
+ * @return {Boolean} Return true if the server supports css-color-4 color function.
+ */
+ supportsCssColor4ColorFunction() {
+ return this.cssColor4ColorFunction;
+ },
};
/**
@@ -292,6 +321,11 @@ function normalizeCssData(db) {
reattachCssColorValues(db);
+ // If there is no supportedFeature in db, create an empty one.
+ if (!db.supportedFeature) {
+ db.supportedFeature = {};
+ }
+
return db;
}