1 files changed, 0 insertions, 467 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/color/alpha.js b/contexts/data/lib/closure-library/closure/goog/color/alpha.js
deleted file mode 100644
index cfac60b..0000000
--- a/contexts/data/lib/closure-library/closure/goog/color/alpha.js
+++ /dev/null
@@ -1,467 +0,0 @@
-// Copyright 2006 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview Utilities related to alpha/transparent colors and alpha color
- * conversion.
- */
-
-goog.provide('goog.color.alpha');
-
-goog.require('goog.color');
-
-
-/**
- * Parses an alpha color out of a string.
- * @param {string} str Color in some format.
- * @return {Object} Contains two properties: 'hex', which is a string containing
- *     a hex representation of the color, as well as 'type', which is a string
- *     containing the type of color format passed in ('hex', 'rgb', 'named').
- */
-goog.color.alpha.parse = function(str) {
-  var result = {};
-  str = String(str);
-
-  var maybeHex = goog.color.prependHashIfNecessaryHelper(str);
-  if (goog.color.alpha.isValidAlphaHexColor_(maybeHex)) {
-    result.hex = goog.color.alpha.normalizeAlphaHex_(maybeHex);
-    result.type = 'hex';
-    return result;
-  } else {
-    var rgba = goog.color.alpha.isValidRgbaColor_(str);
-    if (rgba.length) {
-      result.hex = goog.color.alpha.rgbaArrayToHex(rgba);
-      result.type = 'rgba';
-      return result;
-    } else {
-      var hsla = goog.color.alpha.isValidHslaColor_(str);
-      if (hsla.length) {
-        result.hex = goog.color.alpha.hslaArrayToHex(hsla);
-        result.type = 'hsla';
-        return result;
-      }
-    }
-  }
-  throw Error(str + ' is not a valid color string');
-};
-
-
-/**
- * Converts a hex representation of a color to RGBA.
- * @param {string} hexColor Color to convert.
- * @return {string} string of the form 'rgba(R,G,B,A)' which can be used in
- *    styles.
- */
-goog.color.alpha.hexToRgbaStyle = function(hexColor) {
-  return goog.color.alpha.rgbaStyle_(goog.color.alpha.hexToRgba(hexColor));
-};
-
-
-/**
- * Gets the hex color part of an alpha hex color. For example, from '#abcdef55'
- * return '#abcdef'.
- * @param {string} colorWithAlpha The alpha hex color to get the hex color from.
- * @return {string} The hex color where the alpha part has been stripped off.
- */
-goog.color.alpha.extractHexColor = function(colorWithAlpha) {
-  if (goog.color.alpha.isValidAlphaHexColor_(colorWithAlpha)) {
-    var fullColor = goog.color.prependHashIfNecessaryHelper(colorWithAlpha);
-    var normalizedColor = goog.color.alpha.normalizeAlphaHex_(fullColor);
-    return normalizedColor.substring(0, 7);
-  } else {
-    throw Error(colorWithAlpha + ' is not a valid 8-hex color string');
-  }
-};
-
-
-/**
- * Gets the alpha color part of an alpha hex color. For example, from
- * '#abcdef55' return '55'. The result is guaranteed to be two characters long.
- * @param {string} colorWithAlpha The alpha hex color to get the hex color from.
- * @return {string} The hex color where the alpha part has been stripped off.
- */
-goog.color.alpha.extractAlpha = function(colorWithAlpha) {
-  if (goog.color.alpha.isValidAlphaHexColor_(colorWithAlpha)) {
-    var fullColor = goog.color.prependHashIfNecessaryHelper(colorWithAlpha);
-    var normalizedColor = goog.color.alpha.normalizeAlphaHex_(fullColor);
-    return normalizedColor.substring(7, 9);
-  } else {
-    throw Error(colorWithAlpha + ' is not a valid 8-hex color string');
-  }
-};
-
-
-/**
- * Regular expression for extracting the digits in a hex color quadruplet.
- * @type {RegExp}
- * @private
- */
-goog.color.alpha.hexQuadrupletRe_ = /#(.)(.)(.)(.)/;
-
-
-/**
- * Normalize a hex representation of an alpha color.
- * @param {string} hexColor an alpha hex color string.
- * @return {string} hex color in the format '#rrggbbaa' with all lowercase
- *     literals.
- * @private
- */
-goog.color.alpha.normalizeAlphaHex_ = function(hexColor) {
-  if (!goog.color.alpha.isValidAlphaHexColor_(hexColor)) {
-    throw Error("'" + hexColor + "' is not a valid alpha hex color");
-  }
-  if (hexColor.length == 5) { // of the form #RGBA
-    hexColor = hexColor.replace(goog.color.alpha.hexQuadrupletRe_,
-        '#$1$1$2$2$3$3$4$4');
-  }
-  return hexColor.toLowerCase();
-};
-
-
-/**
- * Converts an 8-hex representation of a color to RGBA.
- * @param {string} hexColor Color to convert.
- * @return {Array} array containing [r, g, b] as ints in [0, 255].
- */
-goog.color.alpha.hexToRgba = function(hexColor) {
-  // TODO(user): Enhance code sharing with goog.color, for example by
-  //     adding a goog.color.genericHexToRgb method.
-  hexColor = goog.color.alpha.normalizeAlphaHex_(hexColor);
-  var r = parseInt(hexColor.substr(1, 2), 16);
-  var g = parseInt(hexColor.substr(3, 2), 16);
-  var b = parseInt(hexColor.substr(5, 2), 16);
-  var a = parseInt(hexColor.substr(7, 2), 16);
-
-  return [r, g, b, a / 255];
-};
-
-
-/**
- * Converts a color from RGBA to hex representation.
- * @param {number} r Amount of red, int between 0 and 255.
- * @param {number} g Amount of green, int between 0 and 255.
- * @param {number} b Amount of blue, int between 0 and 255.
- * @param {number} a Amount of alpha, float between 0 and 1.
- * @return {string} hex representation of the color.
- */
-goog.color.alpha.rgbaToHex = function(r, g, b, a) {
-  var intAlpha = Math.floor(a * 255);
-  if (isNaN(intAlpha) || intAlpha < 0 || intAlpha > 255) {
-    // TODO(user): The CSS spec says the value should be clamped.
-    throw Error('"(' + r + ',' + g + ',' + b + ',' + a +
-        '") is not a valid RGBA color');
-  }
-  var hexA = goog.color.prependZeroIfNecessaryHelper(intAlpha.toString(16));
-  return goog.color.rgbToHex(r, g, b) + hexA;
-};
-
-
-/**
- * Converts a color from HSLA to hex representation.
- * @param {number} h Amount of hue, int between 0 and 360.
- * @param {number} s Amount of saturation, int between 0 and 100.
- * @param {number} l Amount of lightness, int between 0 and 100.
- * @param {number} a Amount of alpha, float between 0 and 1.
- * @return {string} hex representation of the color.
- */
-goog.color.alpha.hslaToHex = function(h, s, l, a) {
-  var intAlpha = Math.floor(a * 255);
-  if (isNaN(intAlpha) || intAlpha < 0 || intAlpha > 255) {
-    // TODO(user): The CSS spec says the value should be clamped.
-    throw Error('"(' + h + ',' + s + ',' + l + ',' + a +
-        '") is not a valid HSLA color');
-  }
-  var hexA = goog.color.prependZeroIfNecessaryHelper(intAlpha.toString(16));
-  return goog.color.hslToHex(h, s / 100, l / 100) + hexA;
-};
-
-
-/**
- * Converts a color from RGBA to hex representation.
- * @param {Array.<number>} rgba Array of [r, g, b, a], with r, g, b in [0, 255]
- *     and a in [0, 1].
- * @return {string} hex representation of the color.
- */
-goog.color.alpha.rgbaArrayToHex = function(rgba) {
-  return goog.color.alpha.rgbaToHex(rgba[0], rgba[1], rgba[2], rgba[3]);
-};
-
-
-/**
- * Converts a color from RGBA to an RGBA style string.
- * @param {number} r Value of red, in [0, 255].
- * @param {number} g Value of green, in [0, 255].
- * @param {number} b Value of blue, in [0, 255].
- * @param {number} a Value of alpha, in [0, 1].
- * @return {string} An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
- */
-goog.color.alpha.rgbaToRgbaStyle = function(r, g, b, a) {
-  if (isNaN(r) || r < 0 || r > 255 ||
-      isNaN(g) || g < 0 || g > 255 ||
-      isNaN(b) || b < 0 || b > 255 ||
-      isNaN(a) || a < 0 || a > 1) {
-    throw Error('"(' + r + ',' + g + ',' + b + ',' + a +
-        ')" is not a valid RGBA color');
-  }
-  return goog.color.alpha.rgbaStyle_([r, g, b, a]);
-};
-
-
-/**
- * Converts a color from RGBA to an RGBA style string.
- * @param {(Array.<number>|Float32Array)} rgba Array of [r, g, b, a],
- *     with r, g, b in [0, 255] and a in [0, 1].
- * @return {string} An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
- */
-goog.color.alpha.rgbaArrayToRgbaStyle = function(rgba) {
-  return goog.color.alpha.rgbaToRgbaStyle(rgba[0], rgba[1], rgba[2], rgba[3]);
-};
-
-
-/**
- * Converts a color from HSLA to hex representation.
- * @param {Array.<number>} hsla Array of [h, s, l, a], where h is an integer in
- *     [0, 360], s and l are integers in [0, 100], and a is in [0, 1].
- * @return {string} hex representation of the color, such as '#af457eff'.
- */
-goog.color.alpha.hslaArrayToHex = function(hsla) {
-  return goog.color.alpha.hslaToHex(hsla[0], hsla[1], hsla[2], hsla[3]);
-};
-
-
-/**
- * Converts a color from HSLA to an RGBA style string.
- * @param {Array.<number>} hsla Array of [h, s, l, a], where h is and integer in
- *     [0, 360], s and l are integers in [0, 100], and a is in [0, 1].
- * @return {string} An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
- */
-goog.color.alpha.hslaArrayToRgbaStyle = function(hsla) {
-  return goog.color.alpha.hslaToRgbaStyle(hsla[0], hsla[1], hsla[2], hsla[3]);
-};
-
-
-/**
- * Converts a color from HSLA to an RGBA style string.
- * @param {number} h Amount of hue, int between 0 and 360.
- * @param {number} s Amount of saturation, int between 0 and 100.
- * @param {number} l Amount of lightness, int between 0 and 100.
- * @param {number} a Amount of alpha, float between 0 and 1.
- * @return {string} An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
- *     styles.
- */
-goog.color.alpha.hslaToRgbaStyle = function(h, s, l, a) {
-  return goog.color.alpha.rgbaStyle_(goog.color.alpha.hslaToRgba(h, s, l, a));
-};
-
-
-/**
- * Converts a color from HSLA color space to RGBA color space.
- * @param {number} h Amount of hue, int between 0 and 360.
- * @param {number} s Amount of saturation, int between 0 and 100.
- * @param {number} l Amount of lightness, int between 0 and 100.
- * @param {number} a Amount of alpha, float between 0 and 1.
- * @return {Array.<number>} [r, g, b, a] values for the color, where r, g, b
- *     are integers in [0, 255] and a is a float in [0, 1].
- */
-goog.color.alpha.hslaToRgba = function(h, s, l, a) {
-  return goog.color.hslToRgb(h, s / 100, l / 100).concat(a);
-};
-
-
-/**
- * Converts a color from RGBA color space to HSLA color space.
- * Modified from {@link http://en.wikipedia.org/wiki/HLS_color_space}.
- * @param {number} r Value of red, in [0, 255].
- * @param {number} g Value of green, in [0, 255].
- * @param {number} b Value of blue, in [0, 255].
- * @param {number} a Value of alpha, in [0, 255].
- * @return {Array.<number>} [h, s, l, a] values for the color, with h an int in
- *     [0, 360] and s, l and a in [0, 1].
- */
-goog.color.alpha.rgbaToHsla = function(r, g, b, a) {
-  return goog.color.rgbToHsl(r, g, b).concat(a);
-};
-
-
-/**
- * Converts a color from RGBA color space to HSLA color space.
- * @param {Array.<number>} rgba [r, g, b, a] values for the color, each in
- *     [0, 255].
- * @return {Array.<number>} [h, s, l, a] values for the color, with h in
- *     [0, 360] and s, l and a in [0, 1].
- */
-goog.color.alpha.rgbaArrayToHsla = function(rgba) {
-  return goog.color.alpha.rgbaToHsla(rgba[0], rgba[1], rgba[2], rgba[3]);
-};
-
-
-/**
- * Helper for isValidAlphaHexColor_.
- * @type {RegExp}
- * @private
- */
-goog.color.alpha.validAlphaHexColorRe_ = /^#(?:[0-9a-f]{4}){1,2}$/i;
-
-
-/**
- * Checks if a string is a valid alpha hex color.  We expect strings of the
- * format #RRGGBBAA (ex: #1b3d5f5b) or #RGBA (ex: #3CAF == #33CCAAFF).
- * @param {string} str String to check.
- * @return {boolean} Whether the string is a valid alpha hex color.
- * @private
- */
-// TODO(user): Support percentages when goog.color also supports them.
-goog.color.alpha.isValidAlphaHexColor_ = function(str) {
-  return goog.color.alpha.validAlphaHexColorRe_.test(str);
-};
-
-
-/**
- * Helper for isNormalizedAlphaHexColor_.
- * @type {RegExp}
- * @private
- */
-goog.color.alpha.normalizedAlphaHexColorRe_ = /^#[0-9a-f]{8}$/;
-
-
-/**
- * Checks if a string is a normalized alpha hex color.
- * We expect strings of the format #RRGGBBAA (ex: #1b3d5f5b)
- * using only lowercase letters.
- * @param {string} str String to check.
- * @return {boolean} Whether the string is a normalized hex color.
- * @private
- */
-goog.color.alpha.isNormalizedAlphaHexColor_ = function(str) {
-  return goog.color.alpha.normalizedAlphaHexColorRe_.test(str);
-};
-
-
-/**
- * Regular expression for matching and capturing RGBA style strings. Helper for
- * isValidRgbaColor_.
- * @type {RegExp}
- * @private
- */
-goog.color.alpha.rgbaColorRe_ =
-    /^(?:rgba)?\((0|[1-9]\d{0,2}),\s?(0|[1-9]\d{0,2}),\s?(0|[1-9]\d{0,2}),\s?(0|1|0\.\d{0,10})\)$/i;
-
-
-/**
- * Regular expression for matching and capturing HSLA style strings. Helper for
- * isValidHslaColor_.
- * @type {RegExp}
- * @private
- */
-goog.color.alpha.hslaColorRe_ =
-    /^(?:hsla)\((0|[1-9]\d{0,2}),\s?(0|[1-9]\d{0,2})\%,\s?(0|[1-9]\d{0,2})\%,\s?(0|1|0\.\d{0,10})\)$/i;
-
-
-/**
- * Checks if a string is a valid rgba color.  We expect strings of the format
- * '(r, g, b, a)', or 'rgba(r, g, b, a)', where r, g, b are ints in [0, 255]
- *     and a is a float in [0, 1].
- * @param {string} str String to check.
- * @return {Array.<number>} the integers [r, g, b, a] for valid colors or the
- *     empty array for invalid colors.
- * @private
- */
-goog.color.alpha.isValidRgbaColor_ = function(str) {
-  // Each component is separate (rather than using a repeater) so we can
-  // capture the match. Also, we explicitly set each component to be either 0,
-  // or start with a non-zero, to prevent octal numbers from slipping through.
-  var regExpResultArray = str.match(goog.color.alpha.rgbaColorRe_);
-  if (regExpResultArray) {
-    var r = Number(regExpResultArray[1]);
-    var g = Number(regExpResultArray[2]);
-    var b = Number(regExpResultArray[3]);
-    var a = Number(regExpResultArray[4]);
-    if (r >= 0 && r <= 255 &&
-        g >= 0 && g <= 255 &&
-        b >= 0 && b <= 255 &&
-        a >= 0 && a <= 1) {
-      return [r, g, b, a];
-    }
-  }
-  return [];
-};
-
-
-/**
- * Checks if a string is a valid hsla color.  We expect strings of the format
- * 'hsla(h, s, l, a)', where s in an int in [0, 360], s and l are percentages
- *     between 0 and 100 such as '50%' or '70%', and a is a float in [0, 1].
- * @param {string} str String to check.
- * @return {Array.<number>} the integers [h, s, l, a] for valid colors or the
- *     empty array for invalid colors.
- * @private
- */
-goog.color.alpha.isValidHslaColor_ = function(str) {
-  // Each component is separate (rather than using a repeater) so we can
-  // capture the match. Also, we explicitly set each component to be either 0,
-  // or start with a non-zero, to prevent octal numbers from slipping through.
-  var regExpResultArray = str.match(goog.color.alpha.hslaColorRe_);
-  if (regExpResultArray) {
-    var h = Number(regExpResultArray[1]);
-    var s = Number(regExpResultArray[2]);
-    var l = Number(regExpResultArray[3]);
-    var a = Number(regExpResultArray[4]);
-    if (h >= 0 && h <= 360 &&
-        s >= 0 && s <= 100 &&
-        l >= 0 && l <= 100 &&
-        a >= 0 && a <= 1) {
-      return [h, s, l, a];
-    }
-  }
-  return [];
-};
-
-
-/**
- * Takes an array of [r, g, b, a] and converts it into a string appropriate for
- * CSS styles.
- * @param {Array.<number>} rgba [r, g, b, a] with r, g, b in [0, 255] and a
- *     in [0, 1].
- * @return {string} string of the form 'rgba(r,g,b,a)'.
- * @private
- */
-goog.color.alpha.rgbaStyle_ = function(rgba) {
-  return 'rgba(' + rgba.join(',') + ')';
-};
-
-
-/**
- * Converts from h,s,v,a values to a hex string
- * @param {number} h Hue, in [0, 1].
- * @param {number} s Saturation, in [0, 1].
- * @param {number} v Value, in [0, 255].
- * @param {number} a Alpha, in [0, 1].
- * @return {string} hex representation of the color.
- */
-goog.color.alpha.hsvaToHex = function(h, s, v, a) {
-  var alpha = Math.floor(a * 255);
-  return goog.color.hsvArrayToHex([h, s, v]) +
-         goog.color.prependZeroIfNecessaryHelper(alpha.toString(16));
-};
-
-
-/**
- * Converts from an HSVA array to a hex string
- * @param {Array} hsva Array of [h, s, v, a] in
- *     [[0, 1], [0, 1], [0, 255], [0, 1]].
- * @return {string} hex representation of the color.
- */
-goog.color.alpha.hsvaArrayToHex = function(hsva) {
-  return goog.color.alpha.hsvaToHex(hsva[0], hsva[1], hsva[2], hsva[3]);
-};