Fixes for #4623 (#4624)

- New `c-object-view` class;
- Removed CSS class special-casing in ObjectView.vue;
- Removed unused `l-shell__main-object-view` class;
- Fixed CSS selector for Condition Widget display in main view;

Co-authored-by: John Hill <john.c.hill@nasa.gov>
Co-authored-by: Shefali Joshi <simplyrender@gmail.com>

src/plugins/conditionWidget/components/condition-widget.scss

@@ -56,7 +56,7 @@ a.c-condition-widget {
 }
 
 // When the widget is in the main view, center it in the space
-.l-shell__main-container > .c-condition-widget {
+.l-shell__main-container > * > .c-condition-widget {
     position: absolute;
     top: 50%;
     left: 50%;

src/ui/components/ObjectView.vue

@@ -9,7 +9,7 @@
         />
     </div>
     <div ref="objectViewWrapper"
-         :class="objectViewStyle"
+         class="c-object-view"
     ></div>
 </div>
 </template>
@@ -64,13 +64,6 @@ export default {
         },
         font() {
             return this.objectFontStyle ? this.objectFontStyle.font : this.layoutFont;
-        },
-        objectViewStyle() {
-            if (this.domainObject && this.domainObject.type === 'time-strip') {
-                return 'l-shell__main-object-view';
-            } else {
-                return 'u-contents';
-            }
         }
     },
     destroyed() {

src/ui/layout/layout.scss

@@ -233,7 +233,6 @@
     /******************************* MAIN AREA */
     &__main-container {
         // Wrapper for main views
-        //display: flex; NEEDS REGRESSION TESTING!!!
         display: flex;
         flex-direction: column;
         flex: 1 1 auto !important;
@@ -243,11 +242,11 @@
         > * + * {
             margin-top: $interiorMargin;
         }
-    }
 
-    &__main-object-view {
-        flex: 1 1 auto;
-        overflow: auto;
+        > .c-object-view {
+            flex: 1 1 auto;
+            overflow: auto;
+        }
     }
 
     &__tree {
@@ -317,6 +316,12 @@
     }
 }
 
+.c-object-view {
+    display: block;
+    height: 100%;
+    overflow: auto;
+}
+
 .is-editing {
     .l-shell__main-container {
         $m: 3px;