Changed a11y_engine_commons variable name to a11yEngineCommons

Author: mattscepter

.vscode/settings.json

@@ -0,0 +1 @@
+{}

lib/checks/color/link-in-text-block-evaluate.js

@@ -4,6 +4,7 @@ import {
   getBackgroundColor,
   incompleteData
 } from '../../commons/color';
+import a11yEngineCommons from '../../commons/a11y-engine-index';
 
 function getContrast(color1, color2) {
   var c1lum = color1.getRelativeLuminance();
@@ -26,6 +27,8 @@ function isBlock(elm) {
 
 function linkInTextBlockEvaluate(node, options) {
   const { requiredContrastRatio, allowSameColor } = options;
+  var evaluateOptions =
+    arguments.length > 1 && arguments[1] ? arguments[1] : {};
 
   if (isBlock(node)) {
     return false;
@@ -42,6 +45,10 @@ function linkInTextBlockEvaluate(node, options) {
 
   this.relatedNodes([parentBlock]);
 
+  if (evaluateOptions.a11yRule) {
+    return a11yEngineCommons.distinguishableLinkEvaluate(node, parentBlock);
+  }
+
   // Capture colors
   var nodeColor = getForegroundColor(node);
   var parentColor = getForegroundColor(parentBlock);
@@ -116,4 +123,18 @@ function linkInTextBlockEvaluate(node, options) {
   return false;
 }
 
+function getColorContrast(node, parentBlock) {
+  // Check if contrast of foreground is sufficient
+  var nodeColor, parentColor;
+  nodeColor = getForegroundColor(node);
+  parentColor = getForegroundColor(parentBlock);
+
+  if (!nodeColor || !parentColor) {
+    return undefined;
+  }
+
+  return getContrast(nodeColor, parentColor);
+}
+
 export default linkInTextBlockEvaluate;
+export { getContrast, getColorContrast };

lib/checks/color/link-in-text-block.json

@@ -3,7 +3,8 @@
   "evaluate": "link-in-text-block-evaluate",
   "options": {
     "requiredContrastRatio": 3,
-    "allowSameColor": true
+    "allowSameColor": true,
+    "a11yRule": false
   },
   "metadata": {
     "impact": "serious",

lib/commons/a11y-engine-index.js

@@ -0,0 +1,6 @@
+import { distinguishableLinkEvaluate } from '../../../a11y-engine-core/lib/commons/distinguishable-link';
+
+const a11yEngineCommons = {};
+a11yEngineCommons.distinguishableLinkEvaluate = distinguishableLinkEvaluate;
+
+export default a11yEngineCommons;

lib/rules/link-in-text-block.json

@@ -17,7 +17,14 @@
     "description": "Ensure links are distinguished from surrounding text in a way that does not rely on color",
     "help": "Links must be distinguishable without relying on color"
   },
-  "all": [],
   "any": ["link-in-text-block", "link-in-text-block-style"],
+  "all": [
+    {
+      "options": {
+        "a11yRule": false
+      },
+      "id": "link-in-text-block"
+    }
+  ],
   "none": []
 }