Issue/4895-Add-an-option-to-expand-and-collapse-panels-on-a-design-surface

packages/survey-creator-angular/src/panel.component.html

@@ -9,6 +9,9 @@
         (pointerdown)="adorner.onPointerDown($event)">
         <svg class="svc-question__drag-element" [iconName]="'icon-drag-area-indicator_24x16'" [size]="24"
           sv-ng-svg-icon></svg>
+          <div class="svc-question__top-actions">
+            <sv-action-bar [model]="adorner.topActionContainer" [handleClick]="false"></sv-action-bar>
+          </div>
       </div>
 
       <ng-template [component]="{ name: componentName, data: componentData }"></ng-template>

packages/survey-creator-angular/src/question.component.html

@@ -7,6 +7,9 @@
       <div *ngIf="adorner.allowDragging" class="svc-question__drag-area" (pointerdown)="adorner.onPointerDown($event)">
         <svg class="svc-question__drag-element" [iconName]="'icon-drag-area-indicator_24x16'" [size]="24"
           sv-ng-svg-icon></svg>
+        <div class="svc-question__top-actions">
+          <sv-action-bar [model]="adorner.topActionContainer" [handleClick]="false"></sv-action-bar>
+        </div>
       </div>
 
       <ng-template [component]="{ name: componentName, data: componentData }"></ng-template>

packages/survey-creator-core/src/components/action-container-view-model.ts

@@ -6,10 +6,14 @@ import {
   SurveyElement,
   property,
   actionModeType,
-  IAction
+  IAction,
+  ActionContainer,
+  ComputedUpdater
 } from "survey-core";
 import { SurveyCreatorModel } from "../creator-base";
 import { settings } from "../creator-settings";
+import { DesignerStateManager } from "./tabs/designer-state-manager";
+import { TabDesignerPlugin } from "./tabs/designer-plugin";
 
 export class SurveyElementActionContainer extends AdaptiveActionContainer {
   private needToShrink(item: Action, shrinkStart: boolean, shrinkEnd: boolean) {
@@ -86,7 +90,16 @@ export class SurveyElementActionContainer extends AdaptiveActionContainer {
 
 export class SurveyElementAdornerBase<T extends SurveyElement = SurveyElement> extends Base {
   public actionContainer: SurveyElementActionContainer;
+  public topActionContainer: ActionContainer;
+  protected designerStateManager: DesignerStateManager;
   @property({ defaultValue: true }) allowDragging: boolean;
+  @property({
+    onSet: (val, target: SurveyElementAdornerBase<T>) => {
+      target.renderedCollapsed = val;
+      if (target.designerStateManager && target.surveyElement) target.designerStateManager.getElementState(target.surveyElement).collapsed = val;
+    }
+  }) collapsed: boolean;
+  @property() renderedCollapsed: boolean;
   private allowEditOption: boolean;
   private selectedPropPageFunc: (sender: Base, options: any) => void;
   private sidebarFlyoutModeChangedFunc: (sender: Base, options: any) => void;
@@ -96,6 +109,8 @@ export class SurveyElementAdornerBase<T extends SurveyElement = SurveyElement> e
     protected surveyElement: T
   ) {
     super();
+    this.designerStateManager = (creator.getPlugin("designer") as TabDesignerPlugin)?.designerStateManager;
+    this.designerStateManager?.initForElement(surveyElement);
     this.selectedPropPageFunc = (sender: Base, options: any) => {
       if (options.name === "isSelectedInDesigner") {
         this.onElementSelectedChanged(options.newValue);
@@ -109,6 +124,18 @@ export class SurveyElementAdornerBase<T extends SurveyElement = SurveyElement> e
     this.actionContainer = new SurveyElementActionContainer();
     this.actionContainer.dotsItem.iconSize = 16;
     this.actionContainer.dotsItem.popupModel.horizontalPosition = "center";
+
+    this.topActionContainer = new ActionContainer();
+    this.topActionContainer.sizeMode = "small";
+    this.topActionContainer.setItems([{
+      id: "collapse",
+      iconName: new ComputedUpdater<string>(() => this.collapsed ? "icon-restore_16x16" : "icon-collapse-detail-light_16x16") as any,
+      iconSize: 16,
+      action: () => {
+        this.collapsed = !this.collapsed;
+      }
+    }]);
+    this.collapsed = !!surveyElement && (this.designerStateManager?.getElementState(surveyElement).collapsed);
     this.setSurveyElement(surveyElement);
     this.creator.sidebar.onPropertyChanged.add(this.sidebarFlyoutModeChangedFunc);
     this.setShowAddQuestionButton(true);

packages/survey-creator-core/src/components/question.scss

@@ -85,7 +85,8 @@ svc-question {
   }
 }
 
-.svc-question__content>div {
+.svc-question__content>div,
+.svc-question__placeholders>div {
   overflow: visible;
 }
 
@@ -451,21 +452,73 @@ svc-question,
 
 // EO reset styles for drag-drop-ghost-survey-element to avoid layout jumping while dragging
 
-.svc-hovered>.svc-question__content>.svc-question__drag-area {
+.svc-hovered>.svc-question__content>.svc-question__drag-area>.svc-question__drag-element {
   visibility: visible;
 }
 
-.svc-question__content.svc-question__content--selected>.svc-question__drag-area {
+.svc-question__content.svc-question__content--selected>.svc-question__drag-area>.svc-question__drag-element {
   visibility: visible;
   z-index: 1;
 }
 
+.svc-question__adorner--collapsed {
+  .svc-question__content {
+    &>* {
+      display: none
+    }
+    .svc-question__drag-area {
+      display: flex,
+    }
+    .sd-element {
+      display: block;
+      &>*:not(.sd-element__header ) {
+        display: none
+      }
+      .sd-element__header
+      {
+        &>*:not(.sd-element__title) {
+          display: none;
+        }
+        .sd-element__title,
+        .sd-title.sd-element__title.sd-element__title--hidden {
+          display: block;
+        }
+      }
+    }
+  }
+}
+
+.svc-question__adorner--collapsed {
+  .svc-question__content {
+    flex-grow: 0;
+    padding-bottom: calcSize(4);
+    .sd-element__header,
+    .sd-element--complex > .sd-element__header {
+      padding-top: 0;
+      padding-bottom: 0;
+    }
+  }
+}
+.svc-creator--mobile {
+  .svc-question__top-actions {
+    padding: 0;
+  }
+  .svc-question__adorner--collapsed {
+    .svc-question__content {
+      padding-bottom: calcSize(2);
+    }
+    .svc-question__content--selected {
+      padding-bottom: calcSize(3);
+    }
+  }
+}
+
+
 .svc-question__drag-area {
   position: absolute;
   cursor: move;
   top: 0;
   left: 0;
-  visibility: hidden;
   height: calcSize(3.5);
   width: 100%;
   display: flex;
@@ -477,6 +530,7 @@ svc-question,
   width: 100%;
   height: calcSize(4);
   opacity: 0.5;
+  visibility: hidden;
 
   use {
     fill: $foreground-light;
@@ -863,4 +917,31 @@ svc-question,
       }
     }
   }
+}
+
+.svc-question__top-actions {
+  padding: calcSize(0.5);
+  position: absolute;
+  top: 0;
+  right: 0;
+  visibility: hidden;
+  .sv-action-bar-item {
+    use {
+      fill: $foreground-dim-light;
+    }
+    margin: 0;
+    padding: calcSize(0.5);
+    opacity: 0.5;
+    height: 24px;
+    &:hover, &:focus {
+      opacity: initial;
+    }
+  }
+}
+
+.svc-question__adorner--collapse-onhover.svc-hovered,
+.svc-question__adorner--collapse-always {
+  .svc-question__top-actions {
+    visibility: visible;
+  }
 }

packages/survey-creator-core/src/components/question.ts

@@ -45,6 +45,7 @@ export interface QuestionBannerParams {
 export class QuestionAdornerViewModel extends SurveyElementAdornerBase {
   @property() isDragged: boolean;
   @property({ defaultValue: "" }) currentAddQuestionType: string;
+
   placeholderComponent: string;
   placeholderComponentData: any;
 
@@ -98,7 +99,11 @@ export class QuestionAdornerViewModel extends SurveyElementAdornerBase {
   }
 
   rootCss() {
-    return this.surveyElement.isQuestion && !(<Question>this.surveyElement).startWithNewLine ? " svc-question__adorner--start-with-new-line" : "";
+    const isStartWithNewLine = this.surveyElement.isQuestion && !(<Question>this.surveyElement).startWithNewLine;
+    return new CssClassBuilder()
+      .append("svc-question__adorner--start-with-new-line", isStartWithNewLine)
+      .append("svc-question__adorner--collapse-" + this.creator.expandCollapseButtonVisibility, true)
+      .append("svc-question__adorner--collapsed", !!this.renderedCollapsed).toString();
   }
 
   css() {

packages/survey-creator-core/src/components/tabs/designer-plugin.ts

@@ -6,6 +6,7 @@ import { PropertyGridModel } from "../../property-grid";
 import { PropertyGridViewModel } from "../../property-grid/property-grid-view-model";
 import { SidebarTabModel } from "../side-bar/side-bar-tab-model";
 import { TabDesignerViewModel } from "./designer";
+import { DesignerStateManager } from "./designer-state-manager";
 
 export class TabDesignerPlugin implements ICreatorPlugin {
   public model: TabDesignerViewModel;
@@ -16,6 +17,7 @@ export class TabDesignerPlugin implements ICreatorPlugin {
   private saveSurveyAction: Action;
   public previewAction: Action;
   private designerAction: Action;
+  public designerStateManager: DesignerStateManager;
 
   private get isSurveySelected(): boolean {
     return this.creator.isElementSelected(<any>this.creator.survey);
@@ -48,6 +50,13 @@ export class TabDesignerPlugin implements ICreatorPlugin {
       return result;
     });
     this.toolboxTab = this.creator.sidebar.addTab("toolbox", "svc-toolbox", creator);
+    this.designerStateManager = new DesignerStateManager();
+    this.designerStateManager.initForSurvey(this.creator.survey);
+    this.creator.onSurveyInstanceCreated.add((s, o) => {
+      if (o.reason == "designer") {
+        this.designerStateManager.initForSurvey(o.survey);
+      }
+    });
     this.creator.onPropertyChanged.add((sender, options) => {
       if (options.name === "toolboxLocation") {
         if (this.toolboxTab.visible && options.newVal !== "sidebar") {

packages/survey-creator-core/src/components/tabs/designer-state-manager.ts

@@ -0,0 +1,54 @@
+import { SurveyElement, SurveyModel } from "survey-core";
+class ElementState {
+  collapsed: boolean = false;
+}
+
+interface ElementStateMap {
+  [key: string]: ElementState;
+}
+
+export class DesignerStateManager {
+  private elementState: ElementStateMap = {};
+  private pageState: ElementStateMap = {};
+  private getStateMapForElement(element: SurveyElement) {
+    return (element && element.isPage) ? this.pageState : this.elementState;
+  }
+
+  private onQuestionAddedHandler = (sender, opts): void => {
+    this.elementState[opts.question.name] = new ElementState();
+  }
+  private onPageAddedHandler = (sender, opts): void => {
+    this.pageState[opts.page.name] = new ElementState();
+  }
+  private onPanelAddedHandler = (sender, opts): void => {
+    this.elementState[opts.panel.name] = new ElementState();
+  }
+  initForSurvey(survey: SurveyModel) {
+    survey.onQuestionAdded.add(this.onQuestionAddedHandler);
+    survey.onPageAdded.add(this.onPageAddedHandler);
+    survey.onPanelAdded.add(this.onPanelAddedHandler);
+  }
+  initForElement(element: SurveyElement): void {
+    if (!element) return;
+    const stateMap = this.getStateMapForElement(element);
+    element.registerFunctionOnPropertyValueChanged(
+      "name",
+      (newName) => {
+        delete stateMap[element.name];
+        stateMap[newName] = new ElementState();
+      },
+      "designerStateManager"
+    );
+  }
+  getElementState(element: SurveyElement): ElementState {
+    const stateMap = this.getStateMapForElement(element);
+    const name = element.name;
+    let state = stateMap[name];
+    if (state) return state;
+    state = new ElementState();
+    stateMap[name] = new ElementState();
+    return state;
+  }
+  constructor() {
+  }
+}

packages/survey-creator-core/src/creator-base.ts

@@ -3622,6 +3622,18 @@ export class SurveyCreatorModel extends Base
    * @see toolboxLocation
    */
   @property({ defaultValue: "right" }) sidebarLocation: "left" | "right";
+
+  /*
+   * Specifies the visibility of the buttons that expand and collapse survey elements on the design surface.
+   * 
+   * Possible values:
+   * 
+   * - `"onhover"` (default) - Displays an expand/collapse button when a survey element is hovered over or selected.
+   * - `"always"` - Displays the expand/collapse buttons permanently.
+   * - `"never"` - Hides the expand/collapse buttons.
+   */
+  @property({ defaultValue: "never" }) expandCollapseButtonVisibility?: "never" | "onhover" | "always";
+
   selectFromStringEditor: boolean;
 
   @property({

packages/survey-creator-core/src/responsivity.scss

@@ -35,7 +35,9 @@
       }
     }
   }
-
+  .svc-question__drag-area {
+    height: calcSize(3);
+  }
   .svc-question__content--selected {
     .svc-rating-question-controls {
       bottom: calcSize(10);