GUAC-932: Restore recent connections through new guacRecentConnections directive.

guacamole/src/main/webapp/app/home/directives/guacRecentConnections.js

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2014 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * A directive which displays the contents of a connection group.
+ */
+angular.module('home').directive('guacRecentConnections', [function guacRecentConnections() {
+
+    return {
+        restrict: 'E',
+        replace: true,
+        scope: {
+
+            /**
+             * The root connection group, and all visible descendants.
+             * Recent connections will only be shown if they exist within this
+             * hierarchy, regardless of their existence within the history.
+             *
+             * @type ConnectionGroup
+             */
+            rootGroup : '='
+
+        },
+
+        templateUrl: 'app/home/templates/guacRecentConnections.html',
+        controller: ['$scope', '$injector', 'guacHistory', 'RecentConnection',
+            function guacGroupListController($scope, $injector, guacHistory, RecentConnection) {
+
+            var visibleObjects = {};
+
+            /**
+             * Adds the given connection to the internal set of visible
+             * objects.
+             * 
+             * @param {Connection} connection
+             *     The connection to add to the internal set of visible objects.
+             */
+            var addVisibleConnection = function addVisibleConnection(connection) {
+
+                // Add given connection to set of visible objects
+                visibleObjects['c/' + connection.identifier] = connection;
+
+            };
+
+            /**
+             * Adds the given connection group to the internal set of visible
+             * objects, along with any descendants.
+             * 
+             * @param {ConnectionGroup} connectionGroup
+             *     The connection group to add to the internal set of visible
+             *     objects, along with any descendants.
+             */
+            var addVisibleConnectionGroup = function addVisibleConnectionGroup(connectionGroup) {
+
+                // Add given connection group to set of visible objects
+                visibleObjects['g/' + connectionGroup.identifier] = connectionGroup;
+
+                // Add all child connections
+                if (connectionGroup.childConnections)
+                    connectionGroup.childConnections.forEach(addVisibleConnection);
+
+                // Add all child connection groups
+                if (connectionGroup.childConnectionGroups)
+                    connectionGroup.childConnectionGroups.forEach(addVisibleConnectionGroup);
+
+            };
+
+            // Update visible objects when root group is set
+            $scope.$watch("rootGroup", function setRootGroup(rootGroup) {
+
+                $scope.recentConnections = [];
+
+                // Produce collection of visible objects
+                visibleObjects = {};
+                if (rootGroup)
+                    addVisibleConnectionGroup(rootGroup);
+
+                // Add any recent connections that are visible
+                guacHistory.recentConnections.forEach(function addRecentConnection(historyEntry) {
+
+                    // Add recent connections for history entries with associated visible objects
+                    if (historyEntry.id in visibleObjects) {
+
+                        var object = visibleObjects[historyEntry.id];
+                        $scope.recentConnections.push(new RecentConnection(object.name, historyEntry));
+
+                    }
+
+                });
+
+            }); // end rootGroup scope watch
+
+        }]
+
+    };
+}]);