Allow rescheduling of manually scheduled parent work package (clamps) in gantt view

frontend/src/app/components/wp-table/timeline/cells/timeline-cell-renderer.ts

@@ -396,7 +396,8 @@ export class TimelineCellRenderer {
     let selectionMode = renderInfo.viewParams.activeSelectionMode;
 
     // Cannot edit the work package if it has children
-    if (!wp.isLeaf && !selectionMode) {
+    // and it is not on 'Manual scheduling' mode
+    if (!wp.isLeaf && !selectionMode && !wp.scheduleManually) {
       bar.classList.add('-readonly');
     } else {
       bar.classList.remove('-readonly');

frontend/src/app/components/wp-table/timeline/cells/wp-timeline-cell-mouse-handler.ts

@@ -108,9 +108,10 @@ export function registerWorkPackageMouseHandler(this:void,
     workPackageTimeline.disableViewParamsCalculation = true;
     mouseDownStartDay = getCursorOffsetInDaysFromLeft(renderInfo, ev);
 
-    // If this wp is a parent element, changing it is not allowed.
+    // If this wp is a parent element, changing it is not allowed
+    // if it is not on 'Manual scheduling' mode
     // But adding a relation to it is.
-    if (!renderInfo.workPackage.isLeaf && !renderInfo.viewParams.activeSelectionMode) {
+    if (!renderInfo.workPackage.isLeaf && !renderInfo.viewParams.activeSelectionMode && !renderInfo.workPackage.scheduleManually) {
       return;
     }
 

frontend/src/global_styles/content/work_packages/timelines/elements/_bar.sass

@@ -26,7 +26,7 @@
     max-width: 20%
     height: 100%
 
-  &:hover .timeline-element--bg:not(.-clamp-style)
+  &:hover .timeline-element--bg:not(.-readonly)
     &~.leftHandle,
     &~.rightHandle
       background-color: rgba(1, 1, 1, 0.2)