feat(docs): linkify error messages on minErr docs pages

docs/component-spec/errorLinkFilterSpec.js

@@ -0,0 +1,49 @@
+describe("errorLinkFilter", function () {
+
+  var errorLinkFilter;
+
+  beforeEach(module('docsApp'));
+
+  beforeEach(inject(function ($filter) {
+    errorLinkFilter = $filter('errorLink');
+  }));
+
+  it('should not change text that does not contain links', function () {
+    expect(errorLinkFilter('This is a test')).toBe('This is a test');
+  });
+
+  it('should find links in text and linkify them', function () {
+    expect(errorLinkFilter("http://ab/ (http://a/) http://1.2/v:~-123. c")).
+      toBe('<a href="http://ab/">http://ab/</a> ' +
+              '(<a href="http://a/">http://a/</a>) ' +
+              '<a href="http://1.2/v:~-123">http://1.2/v:~-123</a>. c');
+    expect(errorLinkFilter(undefined)).not.toBeDefined();
+  });
+
+  it('should handle mailto', function () {
+    expect(errorLinkFilter("mailto:[email protected]")).
+      toBe('<a href="mailto:[email protected]">[email protected]</a>');
+    expect(errorLinkFilter("[email protected]")).
+      toBe('<a href="mailto:[email protected]">[email protected]</a>');
+    expect(errorLinkFilter("send email to [email protected], but")).
+      toBe('send email to <a href="mailto:[email protected]">[email protected]</a>, but');
+  });
+
+  it('should handle target', function () {
+    expect(errorLinkFilter("http://example.com", "_blank")).
+      toBe('<a target="_blank" href="http://example.com">http://example.com</a>')
+    expect(errorLinkFilter("http://example.com", "someNamedIFrame")).
+      toBe('<a target="someNamedIFrame" href="http://example.com">http://example.com</a>')
+  });
+
+  it('should not linkify stack trace URLs', function () {
+    expect(errorLinkFilter("http://example.com/angular.min.js:42:1337")).
+      toBe("http://example.com/angular.min.js:42:1337");
+  });
+
+  it('should truncate linked URLs at 60 characters', function () {
+    expect(errorLinkFilter("http://errors.angularjs.org/very-long-version-string/$injector/nomod?p0=myApp")).
+      toBe('<a href="http://errors.angularjs.org/very-long-version-string/$injector/nomod?p0=myApp">' +
+        'http://errors.angularjs.org/very-long-version-string/$inj...</a>');
+  });
+});

docs/src/templates/js/docs.js

@@ -1,7 +1,8 @@
 var docsApp = {
   controller: {},
   directive: {},
-  serviceFactory: {}
+  serviceFactory: {},
+  filter: {}
 };
 
 docsApp.controller.DocsVersionsCtrl = ['$scope', '$window', 'NG_VERSIONS', 'NG_VERSION', function($scope, $window, NG_VERSIONS, NG_VERSION) {
@@ -255,7 +256,40 @@ docsApp.directive.docTutorialReset = function() {
 };
 
 
-docsApp.directive.errorDisplay = ['$location', function ($location) {
+docsApp.filter.errorLink = ['$sanitize', function ($sanitize) {
+  var LINKY_URL_REGEXP = /((ftp|https?):\/\/|(mailto:)?[A-Za-z0-9._%+-]+@)\S*[^\s\.\;\,\(\)\{\}\<\>]/g,
+      MAILTO_REGEXP = /^mailto:/,
+      STACK_TRACE_REGEXP = /:\d+:\d+$/;
+
+  var truncate = function (text, nchars) {
+    if (text.length > nchars) {
+      return text.substr(0, nchars - 3) + '...';
+    }
+    return text;
+  };
+
+  return function (text, target) {
+    var targetHtml = target ? ' target="' + target + '"' : '';
+
+    if (!text) return text;
+
+    return $sanitize(text.replace(LINKY_URL_REGEXP, function (url) {
+      if (STACK_TRACE_REGEXP.test(url)) {
+        return url;
+      }
+
+      // if we did not match ftp/http/mailto then assume mailto
+      if (!/^((ftp|https?):\/\/|mailto:)/.test(url)) url = 'mailto:' + url;
+
+      return '<a' + targetHtml + ' href="' + url +'">' +
+                truncate(url.replace(MAILTO_REGEXP, ''), 60) +
+              '</a>';
+    }));
+  };
+}];
+
+
+docsApp.directive.errorDisplay = ['$location', 'errorLinkFilter', function ($location, errorLinkFilter) {
   var interpolate = function (formatString) {
     var formatArgs = arguments;
     return formatString.replace(/\{\d+\}/g, function (match) {
@@ -278,7 +312,7 @@ docsApp.directive.errorDisplay = ['$location', function ($location) {
       for (i = 0; angular.isDefined(search['p'+i]); i++) {
         formatArgs.push(search['p'+i]);
       }
-      element.text(interpolate.apply(null, formatArgs));
+      element.html(errorLinkFilter(interpolate.apply(null, formatArgs), '_blank'));
     }
   };
 }];
@@ -873,3 +907,7 @@ angular.module('docsApp', ['ngResource', 'ngRoute', 'ngCookies', 'ngSanitize', '
   factory(docsApp.serviceFactory).
   directive(docsApp.directive).
   controller(docsApp.controller);
+
+angular.forEach(docsApp.filter, function (docsAppFilter, filterName) {
+  angular.module('docsApp').filter(filterName, docsAppFilter);
+});