[Common UI] Add mct-splitter

WTD-1363.

platform/commonUI/general/bundle.json

@@ -8,8 +8,8 @@
                 "key": "urlService",
                 "implementation": "/services/UrlService.js",
                 "depends": [ "$location" ]
-            }    
-        ],        
+            }
+        ],
         "runs": [
             {
                 "implementation": "StyleSheetLoader.js",
@@ -131,6 +131,15 @@
                 "key": "mctScrollY",
                 "implementation": "directives/MCTScroll.js",
                 "depends": [ "$parse", "MCT_SCROLL_Y_PROPERTY", "MCT_SCROLL_Y_ATTRIBUTE" ]
+            },
+            {
+                "key": "mctSplitPane",
+                "implementation": "directives/MCTSplitPane.js",
+                "depends": [ "$parse", "$log" ]
+            },
+            {
+                "key": "mctSplitter",
+                "implementation": "directives/MCTSplitter.js"
             }
         ],
         "constants": [

platform/commonUI/general/src/directives/MCTSplitPane.js

@@ -27,9 +27,7 @@ define(
         'use strict';
 
         // Pixel width to allocate for the splitter itself
-        var SPLITTER_WIDTH = 8,
-            HALF_WIDTH = SPLITTER_WIDTH / 2,
-            DEFAULT_ANCHOR = 'left',
+        var DEFAULT_ANCHOR = 'left',
             CHILDREN_WARNING_MESSAGE = [
                 "Invalid mct-split-pane contents.",
                 "This element should contain exactly three",
@@ -111,21 +109,29 @@ define(
                     return "calc(" + styleValue + " + " + offset + "px)";
                 }
 
+                // Get relevant size (height or width) of DOM element
+                function getSize(splitter) {
+                    return anchor.orientation === 'vertical' ?
+                            splitter.offsetWidth : splitter.offsetHeight;
+                }
+
                 // Apply styles to child elements
                 function updateChildren(children) {
                     // Pick out correct elements to update, flowing from
                     // selected anchor edge.
                     var first = children.eq(anchor.reversed ? 0 : 2),
                         splitter = children.eq(1),
-                        last = children.eq(anchor.reversed ? 2 : 0);
+                        last = children.eq(anchor.reversed ? 2 : 0),
+                        splitterSize = getSize(splitter[0]),
+                        halfSize = splitterSize / 2;
 
                     first.css(anchor.edge, "0px");
-                    first.css(anchor.dimension, calc(-HALF_WIDTH));
+                    first.css(anchor.dimension, calc(-halfSize));
 
-                    splitter.css(anchor.edge, calc(-HALF_WIDTH));
-                    splitter.css(anchor.dimension, SPLITTER_WIDTH + "px");
+                    splitter.css(anchor.edge, calc(-halfSize));
+                    splitter.css(anchor.dimension, splitterSize + "px");
 
-                    last.css(anchor.edge, calc(HALF_WIDTH));
+                    last.css(anchor.edge, calc(halfSize));
                     last.css(anchor.opposite, "0px");
                 }
 

platform/commonUI/general/src/directives/MCTSplitter.js

@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+/*global define*/
+
+define(
+    [],
+    function () {
+        'use strict';
+
+        // Pixel width to allocate for the splitter itself
+        var SPLITTER_TEMPLATE = "<div class=\"splitter\" " +
+                "mct-drag-down=\"splitter.startMove()\" " +
+                "mct-drag=\"splitter.move(delta)\"></div>",
+            OFFSETS_BY_EDGE = {
+                left: "offsetLeft",
+                right: "offsetRight",
+                top: "offsetTop",
+                bottom: "offsetBottom"
+            };
+
+        /**
+         * Implements `mct-splitter` directive.
+         * @constructor
+         */
+        function MCTSplitter() {
+            function link(scope, element, attrs, mctSplitPane) {
+                var initialPosition;
+
+                scope.splitter = {
+                    // Begin moving this splitter
+                    startMove: function () {
+                        var splitter = element[0];
+                        initialPosition = splitter[OFFSETS_BY_EDGE[
+                            mctSplitPane.anchor().edge
+                        ]];
+                    },
+                    // Handle user changes to splitter position
+                    move: function (delta) {
+                        var anchor = mctSplitPane.anchor(),
+                            pixelDelta = delta[
+                                anchor.orientation === "vertical" ? 0 : 1
+                            ];
+                        // Update the position of this splitter
+                        mctSplitPane.position(initialPosition + pixelDelta);
+                    }
+                };
+            }
+
+            return {
+                // Restrict to attributes
+                restrict: "E",
+                // Utilize the mct-split-pane controller
+                require: "^mctSplitPane",
+                // Expose its controller
+                link: link,
+                // Use the template defined above
+                template: SPLITTER_TEMPLATE,
+                // Create a new scope to put the splitter into
+                scope: true
+            };
+        }
+
+        return MCTSplitter;
+
+    }
+);