+ imp. version

assets/invertcode.js

@@ -1,75 +1,8 @@
 var Toggled;
 
-function initCss() {
+// before getting into regexps, try simple matches
-    var colorProperties = ['color', 'background-color', 'background'];
+// and overwrite the input
-
+var simple_colors = {
-    $('*').each(function () {
-
-        for (var prop in colorProperties) {
-            prop = colorProperties[prop];
-            if (($(this).css(prop) === 'rgba(0, 0, 0, 0)') || ($(this).css(prop) === 'transparent')) {
-                if ($(this).is('body')) {
-                    $(this).css('background', 'rgb(255, 255, 255)');
-                    $(this).css('color', 'rgb(0, 0, 0)');
-                } else
-                if (!$(this).is('a'))
-                    $(this).css('color', 'rgb(0, 0, 0)');
-
-            }
-
-        }
-    });
-}
-
-function invertColors() {
-
-    //First init for other elements
-    if (typeof Toggled === 'undefined') {
-        initCss();
-        Toggled = true;
-    }
-
-
-    var colorProperties = ['color', 'background-color', 'background'];
-
-    $('*').each(function () {
-        var color = null;
-        for (var prop in colorProperties) {
-            prop = colorProperties[prop];
-            if (!$(this).css(prop)) continue;
-            color = new RGBColor($(this).css(prop));
-            if (color.ok) {
-                $(this).css(prop, 'rgb(' + (255 - color.r) + ',' + (255 - color.g) + ',' + (255 - color.b) + ')');
-            }
-            color = null;
-        }
-    });
-
-}
-
-
-/**
- * A class to parse color values
- * @author Stoyan Stefanov <sstoo@gmail.com>
- * @link   http://www.phpied.com/rgb-color-parser-in-javascript/
- * @license Use it if you like it
- */
-
-
-function RGBColor(color_string) {
-    this.ok = false;
-
-    // strip any leading #
-    if (color_string.charAt(0) == '#') { // remove # if any
-        color_string = color_string.substr(1, 6);
-    }
-
-    color_string = color_string.replace(/ /g, '');
-    color_string = color_string.toLowerCase();
-
-    // before getting into regexps, try simple matches
-    // and overwrite the input
-    var simple_colors = {
     
     aliceblue: 'f0f8ff',
     antiquewhite: 'faebd7',
@@ -214,16 +147,13 @@ function RGBColor(color_string) {
     whitesmoke: 'f5f5f5',
     yellow: 'ffff00',
     yellowgreen: '9acd32'
-    };
+};
-    for (var key in simple_colors) {
-        if (color_string == key) {
-            color_string = simple_colors[key];
-        }
-    }
-    // emd of simple type-in colors
 
-    // array of color definition objects
+var colorCache = new Object();
-    var color_defs = [{
+var rgbCache = new Object();
+
+// array of color definition objects
+var color_defs = [{
     re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
     example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
     process: function (bits) {
@@ -233,7 +163,7 @@ function RGBColor(color_string) {
             parseInt(bits[3])
         ];
     }
-    }, {
+}, {
     re: /^(\w{2})(\w{2})(\w{2})$/,
     example: ['#00ff00', '336699'],
     process: function (bits) {
@@ -243,7 +173,7 @@ function RGBColor(color_string) {
             parseInt(bits[3], 16)
         ];
     }
-    }, {
+}, {
     re: /^(\w{1})(\w{1})(\w{1})$/,
     example: ['#fb0', 'f0f'],
     process: function (bits) {
@@ -253,7 +183,83 @@ function RGBColor(color_string) {
             parseInt(bits[3] + bits[3], 16)
         ];
     }
-    }];
+}];
+
+var colorProperties = ['color', 'background-color', 'background'];
+
+function initCss() {
+    $('*').each(function () {
+        for (var prop in colorProperties) {
+            prop = colorProperties[prop];
+            if (($(this).css(prop) === 'rgba(0, 0, 0, 0)') || ($(this).css(prop) === 'transparent')) {
+                if ($(this).is('body')) {
+                    $(this).css('background', 'rgb(255, 255, 255)');
+                    $(this).css('color', 'rgb(0, 0, 0)');
+                } else
+                if (!$(this).is('a'))
+                    $(this).css('color', 'rgb(0, 0, 0)');
+
+            }
+        }
+    });
+}
+
+function invertColors() {
+    //First init for other elements
+    if (typeof Toggled === 'undefined') {
+        initCss();
+        Toggled = true;
+    }
+
+    var color;
+    var prop;
+    var cssProp;
+
+    $('*').each(function () {
+        for (prop in colorProperties) {
+            prop = colorProperties[prop];
+            if ($(this).css(prop)) {
+		cssProp = $(this).css(prop);
+		if (colorCache[cssProp] != undefined) {
+		    $(this).css(prop, colorCache[cssProp]);
+		} else {
+		    color = new RGBColor(cssProp);
+		    if (color.ok) {
+			$(this).css(prop, 'rgb(' + (255 - color.r) + ',' + (255 - color.g) + ',' + (255 - color.b) + ')');
+		    }
+		    colorCache[cssProp] = $(this).css(prop);
+		}
+	    }
+	}
+    });
+
+}
+
+/**
+ * A class to parse color values
+ * @author Stoyan Stefanov <sstoo@gmail.com>
+ * @link   http://www.phpied.com/rgb-color-parser-in-javascript/
+ * @license Use it if you like it
+ */
+
+
+function RGBColor(color_string) {
+    this.ok = false;
+
+    // strip any leading #
+    if (color_string.charAt(0) == '#') { // remove # if any
+        color_string = color_string.substr(1, 6);
+    }
+
+    color_string = color_string.replace(/ /g, '');
+    color_string = color_string.toLowerCase();
+
+    for (var key in simple_colors) {
+        if (color_string == key) {
+            color_string = simple_colors[key];
+        }
+    }
+    // emd of simple type-in colors
 
     // search through the definitions to find a match
     for (var i = 0; i < color_defs.length; i++) {