1 files changed, 149 insertions, 0 deletions
diff --git a/docs/app/src/search.js b/docs/app/src/search.js
new file mode 100644
index 00000000..9ae18ff6
--- /dev/null
+++ b/docs/app/src/search.js
@@ -0,0 +1,149 @@
+angular.module('search', [])
+
+.controller('DocsSearchCtrl', ['$scope', '$location', 'docsSearch', function($scope, $location, docsSearch) {
+  function clearResults() {
+    $scope.results = [];
+    $scope.colClassName = null;
+    $scope.hasResults = false;
+  }
+
+  $scope.search = function(q) {
+    var MIN_SEARCH_LENGTH = 3;
+    if(q.length >= MIN_SEARCH_LENGTH) {
+      var results = docsSearch(q);
+      var totalAreas = 0;
+      for(var i in results) {
+        ++totalAreas;
+      }
+      if(totalAreas > 0) {
+        $scope.colClassName = 'cols-' + totalAreas;
+      }
+      $scope.hasResults = totalAreas > 0;
+      $scope.results = results;
+    }
+    else {
+      clearResults();
+    }
+    if(!$scope.$$phase) $scope.$apply();
+  };
+  $scope.submit = function() {
+    var result;
+    for(var i in $scope.results) {
+      result = $scope.results[i][0];
+      if(result) {
+        break;
+      }
+    }
+    if(result) {
+      $location.path(result.url);
+      $scope.hideResults();
+    }
+  };
+  $scope.hideResults = function() {
+    clearResults();
+    $scope.q = '';
+  };
+}])
+
+.factory('lunrSearch', function() {
+  return function(properties) {
+    if (window.RUNNING_IN_NG_TEST_RUNNER) return null;
+
+    var engine = lunr(properties);
+    return {
+      store : function(values) {
+        engine.add(values);
+      },
+      search : function(q) {
+        return engine.search(q);
+      }
+    };
+  };
+})
+
+.factory('docsSearch', ['$rootScope','lunrSearch', 'NG_PAGES',
+    function($rootScope, lunrSearch, NG_PAGES) {
+  if (window.RUNNING_IN_NG_TEST_RUNNER) {
+    return null;
+  }
+
+  var index = lunrSearch(function() {
+    this.ref('id');
+    this.field('title', {boost: 50});
+    this.field('keywords', { boost : 20 });
+  });
+
+  angular.forEach(NG_PAGES, function(page, key) {
+    if(page.searchTerms) {
+      index.store({
+        id : key,
+        title : page.searchTerms.titleWords,
+        keywords : page.searchTerms.keywords
+      });
+    };
+  });
+
+  return function(q) {
+    var results = {
+      api : [],
+      tutorial : [],
+      guide : [],
+      error : [],
+      misc : []
+    };
+    angular.forEach(index.search(q), function(result) {
+      var key = result.ref;
+      var item = NG_PAGES[key];
+      var area = item.area;
+      item.path = key;
+
+      var limit = area == 'api' ? 40 : 14;
+      if(results[area].length < limit) {
+        results[area].push(item);
+      }
+    });
+    return results;
+  };
+}])
+
+.directive('focused', function($timeout) {
+  return function(scope, element, attrs) {
+    element[0].focus();
+    element.on('focus', function() {
+      scope.$apply(attrs.focused + '=true');
+    });
+    element.on('blur', function() {
+      // have to use $timeout, so that we close the drop-down after the user clicks,
+      // otherwise when the user clicks we process the closing before we process the click.
+      $timeout(function() {
+        scope.$eval(attrs.focused + '=false');
+      });
+    });
+    scope.$eval(attrs.focused + '=true');
+  };
+})
+
+.directive('docsSearchInput', ['$document',function($document) {
+  return function(scope, element, attrs) {
+    var ESCAPE_KEY_KEYCODE = 27,
+        FORWARD_SLASH_KEYCODE = 191;
+    angular.element($document[0].body).bind('keydown', function(event) {
+      var input = element[0];
+      if(event.keyCode == FORWARD_SLASH_KEYCODE && document.activeElement != input) {
+        event.stopPropagation();
+        event.preventDefault();
+        input.focus();
+      }
+    });
+
+    element.bind('keydown', function(event) {
+      if(event.keyCode == ESCAPE_KEY_KEYCODE) {
+        event.stopPropagation();
+        event.preventDefault();
+        scope.$apply(function() {
+          scope.hideResults();
+        });
+      }
+    });
+  };
+}]);