5 files changed, 90 insertions, 32 deletions

diff --git a/js/controllers/objects-controller.js b/js/controllers/objects-controller.js
index a02c3045..2c9f2d66 100644
--- a/js/controllers/objects-controller.js
+++ b/js/controllers/objects-controller.js
@@ -89,19 +89,21 @@ var objectsController = exports.ObjectsController = Montage.create(Component, {
                 bindingsArray = [],
                 property, descriptor, bindingArgsObject;
 
-            for(property in descriptors) {
-                if(descriptors.hasOwnProperty(property)) {
-                    descriptor = descriptors[property];
-
-                    bindingArgsObject = {
-                        sourceObject : object,
-                        sourceObjectPropertyPath : property,
-                        boundObject : descriptor.boundObject,
-                        boundObjectPropertyPath : descriptor.boundObjectPropertyPath,
-                        onweway : descriptor.oneway
-                    };
-
-                    bindingsArray.push(bindingArgsObject);
+            if(descriptors) {
+                for(property in descriptors) {
+                    if(descriptors.hasOwnProperty(property)) {
+                        descriptor = descriptors[property];
+
+                        bindingArgsObject = {
+                            sourceObject : object,
+                            sourceObjectPropertyPath : property,
+                            boundObject : descriptor.boundObject,
+                            boundObjectPropertyPath : descriptor.boundObjectPropertyPath,
+                            oneway : descriptor.oneway
+                        };
+
+                        bindingsArray.push(bindingArgsObject);
+                    }
                 }
             }
 
diff --git a/js/panels/binding/binding-item.reel/binding-item.css b/js/panels/binding/binding-item.reel/binding-item.css
index eb4ecfe0..3dc1294c 100644
--- a/js/panels/binding/binding-item.reel/binding-item.css
+++ b/js/panels/binding/binding-item.reel/binding-item.css
@@ -10,39 +10,59 @@
     padding: 3px;
     border-bottom: 1px solid #505050;
     list-style-type: none;
-    /*display: -webkit-box;*/
-    /*-webkit-box-orient: horizontal;*/
-}
-.binding-item > * {
-    /*-webkit-box-flex: 1;*/
-    display: inline-block;
+    display: -webkit-box;
+    -webkit-box-orient: horizontal;
 }
 .source-object, .bound-object {
     padding: 5px 0 3px;
+    -webkit-box-flex: 1;
+    overflow: hidden;
+    position: relative;
 }
-.source-object {
-    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAXCAYAAADgKtSgAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyRpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw%2FeHBhY2tldCBiZWdpbj0i77u%2FIiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8%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%2BIDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjBERDY0RUVEQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjBERDY0RUVFQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2Ii8%2BIDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY%2BIDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8%2B50zlPwAAAttJREFUeNqMls9rE0EUx2fz24RKsoluUAkIHhWFXtVCJRAhFBRB8D8I1GMF%2FwJFjwr9DzwVipKDUBvQg4KgeJOe1OSS2PxYMUnzO77vsm%2BcSbJpB76dLvve5719M%2FMmxnQ6FV4jn89fo%2BkBaY2UJmVIZVKV9J70ivTNy99YBCdolqZCv9%2B%2F0%2Bl0BM0CdqPRSAQCAWEYhgiHwyIWi2HeJdtt0t6xcAI%2FGw6HW61Wy4H6fD4pHpPJRApBEomECAaDz%2BnVI084gV90u93NRqPhwJCl3%2B%2BXYGTM9gCPx2Pna%2FB%2FMpkU0Wj0Jb16yLyAAn4CcL1eRxYSrMLVASB%2FEQLAL5VKbVKANr1%2BLDMn8AaV4nWtVnNggGNGADgjY4gHfCAEABhfQP7ObFkW%2FO%2BS2S5nXmg2mw6AM1ZLYlDi5u1fInLJlgHaX86K1gdLKxcEDgUoOHBsN1q43GAwEKFQSANDACdyPzVw56sl%2Fn48R%2B%2Bnc4sMDvGytNCrKOZ9qrWToVpjzngenBbtTxdkqdhW9QWPxj2UZX12yzmOnuDzshQ8q0GgXq%2BHV1lknsFCqDvCF5ivsQrW9vLMYoMDHo2LIJqolWo4HZOG%2BvbzhcYLwaofP7s8E4QmZ80rjmHvZ8TR96QEnbp8KE6vlTU427IfP7u8Jv6WsRCcvTSmxz%2BljOgd6AFWblbmAqinHBzwaPwAvIT%2BoPYLmQkFsN%2FpAaJXfouV6xUtWz5QrEgkAtM9wHfoyMpeAWlB3ABHB%2Bb%2FAFcpwI2KBlV9wQOXj%2F9%2BtVpdxwscfT7%2B8oQuOf4MxfGHYJ9Op0tkdou3xDa6GvcK7hezUmGq2Ie7o9vfhQMvFos7lO1T0zRlBiwOxAD1edYW%2FuCgJEv7OZfluH7OWtTPF95E1Hy2bNs%2B8U0Uj8fR9JbfREqAnHuHbvAdyjXnJqXcoW%2FcGr890QWtBFlF10Rzc2%2F%2BM6RD9xdAya3tZy%2F%2FfwIMAMwfSVrTb5e6AAAAAElFTkSuQmCC);
-    background-position: right center;
-    background-repeat: no-repeat;
-    padding-right: 30px;
-    width: 41%;
+.source-object > span, .bound-object > span {
+    position: absolute;
 }
 .bound-object {
     padding-left: 12px;
-    width: 41%;
+}
+.so-property {
+    left: 3px;
+}
+.bo-property {
+    left: 6px;
 }
 .so-object-identifier, .bo-object-identifier {
-    float: right;
+    right: 3px;
     color: #999;
 }
-.binding-item .binding-edit-button {
-    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAYAAABWdVznAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyRpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw%2FeHBhY2tldCBiZWdpbj0i77u%2FIiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8%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%2BIDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOkNCQjhDNUNGNzc4NzExRTFBOUI5Q0NBQkEwRTIxMjAxIiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOkNCQjhDNUQwNzc4NzExRTFBOUI5Q0NBQkEwRTIxMjAxIi8%2BIDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY%2BIDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8%2Bs3B0RQAAAd9JREFUeNockbGL2nAUx%2FNLorHaJXKjJ6YcDkVcHByUQwQDbl26FqEu3dykLjoIXXTwDygKFcrRP%2BC8Q0HwQDlwOaRCKFiuCmo0d0Jr1ZjY923ghZfv9%2FN%2B7%2F1eOJ%2FPx%2BEpl8uKZVk3p9PpRlXV81QqdY4cGjww%2F9l2u81Fo1EuFotdbrdbzbbtX%2FP5%2FAqBHBo8MGB5RVF8yWTSv9%2FvXYIgsNVq9XcwGLxCIBdFkcEDA5YZhnFNJwXcbjc3Go32mUzmlsaYYAQ6QGk0GmooFJKoE8fz%2FE9%2BsVjIHo%2FHpes6y2azX8PhsNbtdtMI5NDggQHL0wW%2FdDodfTqdPm02m4dqtfqmXq9LCOTQ4IEBy3u93gdq9YfCplHM2Wz2gsZ7ptggJ%2B0ADwxYRuI1zfqaLvY7l8t9mkwmcqVSeWeapl0oFJqBQOCpVqt9lCTpJWnfWb%2Ffv6fKM2xot9s9FovFz71ez6ST7UQiIZVKpffUzU%2Ffp%2FV6vWLBYPDD8Xi8oJ%2FkarVaKhVatLlHxhgny7KfPCGdTt%2FS945W%2FEPUNO2KNihGIpH44XBI0Tak8Xh8hoJ4PC7RGCZN0BkOh3fEHUV6Gdi50%2BnUqaWxXC6FfD7%2FDQXNZvMtXdZyOBw6IUtw%2FwQYACT6GJDDh744AAAAAElFTkSuQmCC);
-    background-repeat: no-repeat;
+
+/* -------------
+   Buttons
+ ---------------- */
+
+.direction-toggle-button, .binding-edit-button {
+    background-color: transparent;
     background-position: right center;
+    background-repeat: no-repeat;
     border: 0 none;
     cursor: pointer;
+    width: 23px;
+    height: 100%;
+    -webkit-box-flex: 0;
+}
+.direction-toggle-button {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAXCAYAAADgKtSgAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyRpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw%2FeHBhY2tldCBiZWdpbj0i77u%2FIiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8%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%2BIDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjBERDY0RUVEQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjBERDY0RUVFQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2Ii8%2BIDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY%2BIDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8%2B50zlPwAAAttJREFUeNqMls9rE0EUx2fz24RKsoluUAkIHhWFXtVCJRAhFBRB8D8I1GMF%2FwJFjwr9DzwVipKDUBvQg4KgeJOe1OSS2PxYMUnzO77vsm%2BcSbJpB76dLvve5719M%2FMmxnQ6FV4jn89fo%2BkBaY2UJmVIZVKV9J70ivTNy99YBCdolqZCv9%2B%2F0%2Bl0BM0CdqPRSAQCAWEYhgiHwyIWi2HeJdtt0t6xcAI%2FGw6HW61Wy4H6fD4pHpPJRApBEomECAaDz%2BnVI084gV90u93NRqPhwJCl3%2B%2BXYGTM9gCPx2Pna%2FB%2FMpkU0Wj0Jb16yLyAAn4CcL1eRxYSrMLVASB%2FEQLAL5VKbVKANr1%2BLDMn8AaV4nWtVnNggGNGADgjY4gHfCAEABhfQP7ObFkW%2FO%2BS2S5nXmg2mw6AM1ZLYlDi5u1fInLJlgHaX86K1gdLKxcEDgUoOHBsN1q43GAwEKFQSANDACdyPzVw56sl%2Fn48R%2B%2Bnc4sMDvGytNCrKOZ9qrWToVpjzngenBbtTxdkqdhW9QWPxj2UZX12yzmOnuDzshQ8q0GgXq%2BHV1lknsFCqDvCF5ivsQrW9vLMYoMDHo2LIJqolWo4HZOG%2BvbzhcYLwaofP7s8E4QmZ80rjmHvZ8TR96QEnbp8KE6vlTU427IfP7u8Jv6WsRCcvTSmxz%2BljOgd6AFWblbmAqinHBzwaPwAvIT%2BoPYLmQkFsN%2FpAaJXfouV6xUtWz5QrEgkAtM9wHfoyMpeAWlB3ABHB%2Bb%2FAFcpwI2KBlV9wQOXj%2F9%2BtVpdxwscfT7%2B8oQuOf4MxfGHYJ9Op0tkdou3xDa6GvcK7hezUmGq2Ie7o9vfhQMvFos7lO1T0zRlBiwOxAD1edYW%2FuCgJEv7OZfluH7OWtTPF95E1Hy2bNs%2B8U0Uj8fR9JbfREqAnHuHbvAdyjXnJqXcoW%2FcGr890QWtBFlF10Rzc2%2F%2BM6RD9xdAya3tZy%2F%2FfwIMAMwfSVrTb5e6AAAAAElFTkSuQmCC);
+    border-radius: 50%;
+    height: 23px;
+    width: 23px;
+}
+.direction-toggle-button.two-way {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAXCAYAAADgKtSgAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyRpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw%2FeHBhY2tldCBiZWdpbj0i77u%2FIiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8%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%2BIDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjBERDY0RUYxQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjBERDY0RUYyQTQzQjExRTFBOTBDQzZDNzQ2NDg1NEE2Ii8%2BIDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY%2BIDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8%2BbFXFCAAAA8FJREFUeNqMlt9rHFUUx78zszO7mxWz6a62KUlsSBrwwboixRfR0ppWMAZKadX%2BAdKC4ouV%2BhdU1DeFPiSoT%2BJDQZA8CIUWX0sCbSEVTUGaNr%2Fo7uxmZ3azu7M%2FPN%2FbvZNZmrS58N27O%2Becz71z7r3nrtHpdLBbm5qaykl3XvSu6IBoRLQsWhf9JfpVdHu3eGMnuEAnpbtYr9dPVyoVSA%2F6NZtNxGIxGIaBeDyOVCrF%2FnfxvSq6%2Fly4gL8NguBSsVhUUNM0Q%2BnWbrdDcZCBgQHYtv2dmL7aFS7gH6rV6meFQkHBOEvLskIwZ6z9CW61Wupt%2BD2TyaCvr%2B9HMX2ueWYEfIXgfD6voI7jcDbbcuKovpzrfSaiH%2F0Zx3hBXemBC3haUnHZdd0wiAG6N2M2Vg9%2FgpXx83CH31NvE7XrGMaTI8jT0ZlfpIGvrVMRpkTAa%2BMfYyv7OuJ2DMXhk3CHTiib9tNi%2Bsghjx%2FW%2FPx8Thbu%2B3K53DMTDV4fO4fG%2FpwCp737MFJZ1NLj6LRbSFWWw%2FXiWlCNRgOJRGJMOHPWxMTEF57nvc2F0fBe8BtIxh30%2B%2FeRXfwZic4WOv3D8NOvyoI20ec%2F6BmAi8uWTCZdpuX4U1vOtLA6ehY1WcCEY6PfW0L67uyToLVb6C%2FcUc83XzmF%2FOAxlc5ofK1Wo%2Bsk4SPcUuE%2BNkysHDoDL3MEljxL1tbxwu2Z7c3baSHx4CYy%2F%2F6m7PmhSRngndBMDnnSRkncp1%2BFM2jG0%2FBfHJPv4igfyY2Fp491UIHtPVJ2%2BpUGjsjqOSpenwFyCXf1rJmzWM3F6NIvMAXQlt9bg28hGD0OOKntE7pvHO7RL5XdqW4of7Qa4QHr8lTOl7mAevZs8eo6Rv75Cah72HKy8Mc%2BlAFOSFRMgTdzF9AQd8tfU35W4PeUBvKk%2FUf4DdaHaL3gDDjA4L1ZBJUSqvUAm5kcaoNHUXjtU1QD8Ss9xEGxE6x3iZZsRcKvE35NakJYKyjt5MgA%2BxdnUPeLKLcT2Bj%2BAF69iWbxIQ4szkrq%2FNA3Gkseuebc3NyCzPwG97h2iMqurD0ZQN7Ab8iz0iMBz8BoeDv7C4c8gS%2Fo43%2BVVY2j8jBRPQH%2BKob%2BnoXtLqneqJd77DpGV8dufd8uud2qeJnVLXpSn1dyNVwKFrLZLFPyjZi%2FfmY91%2BC9wKmd6vmON5EUn0ulUmnPN1E6nWZdf%2FZNFBng%2Fe4dOq3vUL0TOAjfJnKH%2FtHN8Z97uqAjg7wp3Ucsbt2b%2FyXR4%2B4%2FAO6Ia6Jbu8X%2FL8AAPIZc5jSqbNgAAAAASUVORK5CYII%3D);
+}
+.binding-item .binding-edit-button {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAYAAABWdVznAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyRpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw%2FeHBhY2tldCBiZWdpbj0i77u%2FIiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8%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%2BIDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOkNCQjhDNUNGNzc4NzExRTFBOUI5Q0NBQkEwRTIxMjAxIiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOkNCQjhDNUQwNzc4NzExRTFBOUI5Q0NBQkEwRTIxMjAxIi8%2BIDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY%2BIDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8%2Bs3B0RQAAAd9JREFUeNockbGL2nAUx%2FNLorHaJXKjJ6YcDkVcHByUQwQDbl26FqEu3dykLjoIXXTwDygKFcrRP%2BC8Q0HwQDlwOaRCKFiuCmo0d0Jr1ZjY923ghZfv9%2FN%2B7%2F1eOJ%2FPx%2BEpl8uKZVk3p9PpRlXV81QqdY4cGjww%2F9l2u81Fo1EuFotdbrdbzbbtX%2FP5%2FAqBHBo8MGB5RVF8yWTSv9%2FvXYIgsNVq9XcwGLxCIBdFkcEDA5YZhnFNJwXcbjc3Go32mUzmlsaYYAQ6QGk0GmooFJKoE8fz%2FE9%2BsVjIHo%2FHpes6y2azX8PhsNbtdtMI5NDggQHL0wW%2FdDodfTqdPm02m4dqtfqmXq9LCOTQ4IEBy3u93gdq9YfCplHM2Wz2gsZ7ptggJ%2B0ADwxYRuI1zfqaLvY7l8t9mkwmcqVSeWeapl0oFJqBQOCpVqt9lCTpJWnfWb%2Ffv6fKM2xot9s9FovFz71ez6ST7UQiIZVKpffUzU%2Ffp%2FV6vWLBYPDD8Xi8oJ%2FkarVaKhVatLlHxhgny7KfPCGdTt%2FS945W%2FEPUNO2KNihGIpH44XBI0Tak8Xh8hoJ4PC7RGCZN0BkOh3fEHUV6Gdi50%2BnUqaWxXC6FfD7%2FDQXNZvMtXdZyOBw6IUtw%2FwQYACT6GJDDh744AAAAAElFTkSuQmCC);
     padding-top: 6px;
     width: 12px;
-    height: 100%;
     margin-left: 10px;
+
 }
\ No newline at end of file
diff --git a/js/panels/binding/binding-item.reel/binding-item.html b/js/panels/binding/binding-item.reel/binding-item.html
index a569b8b4..79644a7a 100644
--- a/js/panels/binding/binding-item.reel/binding-item.html
+++ b/js/panels/binding/binding-item.reel/binding-item.html
@@ -13,7 +13,8 @@
             "owner": {
                 "prototype": "js/panels/binding/binding-item.reel",
                 "properties": {
-                    "element": {"#": "binding-item"}
+                    "element": {"#": "binding-item"},
+                    "directionToggleButton": {"@": "directionToggleButton" }
                 }
             },
             "soProperty": {
@@ -64,6 +65,19 @@
                     "listener": {"@": "owner"}
                 }]
 
+            },
+            "directionToggleButton": {
+                "prototype": "montage/ui/button.reel",
+                "properties": {
+                    "element": {"#": "direction-toggle-button"},
+                    "identifier": "directionToggleButton",
+                    "label": " "
+                },
+                "listeners": [{
+                    "type": "action",
+                    "listener": {"@": "owner"}
+                }]
+
             }
 
         }
@@ -75,6 +89,7 @@
         <span data-montage-id="so-property" class="so-property"></span>
         <span data-montage-id="so-object" class="so-object-identifier"></span>
     </div>
+    <button data-montage-id="direction-toggle-button" class="direction-toggle-button"></button>
     <div data-montage-id="boundObject" class="bound-object">
         <span data-montage-id="bo-property" class="bo-property"></span>
         <span data-montage-id="bo-object" class="bo-object-identifier"></span>
diff --git a/js/panels/binding/binding-item.reel/binding-item.js b/js/panels/binding/binding-item.reel/binding-item.js
index bda62ef3..0fc06ea8 100644
--- a/js/panels/binding/binding-item.reel/binding-item.js
+++ b/js/panels/binding/binding-item.reel/binding-item.js
@@ -74,6 +74,16 @@ exports.BindingItem = Montage.create(Component, {
         }
     },
 
+    /* -------------- Events -------------- */
+
+    handleDirectionToggleButtonAction : {