From 168ec6634ea2ae493319b53d79caac08b806b578 Mon Sep 17 00:00:00 2001
From: Andrew Kingston <andrew@kingston.dev>
Date: Tue, 26 Apr 2022 13:44:21 +0100
Subject: [PATCH] Add back in working component tree with scrolling and
 dropdown menus

---
 packages/builder/src/builderStore/index.js    |  25 ++--
 .../src/builderStore/store/frontend.js        |  40 ++----
 .../AppPanel/ComponentSelectionList.svelte    | 114 ------------------
 .../FrontendNavigatePane.svelte               |  12 --
 .../NavigationPanel/NavigationPanel.svelte    |  14 ++-
 .../ComponentNavigationTree.svelte}           |  11 +-
 .../LayoutDropdownMenu.svelte                 |   0
 .../PathDropdownMenu.svelte                   |   0
 .../PathTree.svelte                           |   7 +-
 .../design/_components/AppPanel.svelte        |   2 +-
 .../design/_components/AppPreview.svelte      |   5 +-
 .../_components}/ComponentDropdownMenu.svelte |   0
 .../ComponentNavigationPanel.svelte           |  95 +++++++++++++--
 .../_components}/ComponentTree.svelte         |  13 +-
 .../_components/ScreenslotDropdownMenu.svelte |  52 ++++++++
 .../_components}/dragDropStore.js             |   0
 .../[screenId]/[componentId]/_layout.svelte   |  30 +++++
 .../components/[screenId]/_layout.svelte      |   1 +
 .../design/components/[screenId]/index.svelte |   2 +-
 ...tPanel.svelte => NewComponentPanel.svelte} |  18 ++-
 .../NewComponentTargetPanel.svelte            |  10 ++
 .../components/[screenId]/new/index.svelte    |   6 +-
 .../_components/ScreenNavigationPanel.svelte  |  13 ++
 .../[application]/design/theme/index.svelte   |   4 +-
 24 files changed, 260 insertions(+), 214 deletions(-)
 delete mode 100644 packages/builder/src/components/design/AppPanel/ComponentSelectionList.svelte
 rename packages/builder/src/components/design/{NavigationPanel/ComponentNavigationTree/index.svelte => _old/ComponentNavigationTree.svelte} (89%)
 rename packages/builder/src/components/design/{NavigationPanel/ComponentNavigationTree => _old}/LayoutDropdownMenu.svelte (100%)
 rename packages/builder/src/components/design/{NavigationPanel/ComponentNavigationTree => _old}/PathDropdownMenu.svelte (100%)
 rename packages/builder/src/components/design/{NavigationPanel/ComponentNavigationTree => _old}/PathTree.svelte (92%)
 rename packages/builder/src/{components/design/NavigationPanel/ComponentNavigationTree => pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components}/ComponentDropdownMenu.svelte (100%)
 rename packages/builder/src/{components/design/NavigationPanel/ComponentNavigationTree => pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components}/ComponentTree.svelte (94%)
 create mode 100644 packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ScreenslotDropdownMenu.svelte
 rename packages/builder/src/{components/design/NavigationPanel/ComponentNavigationTree => pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components}/dragDropStore.js (100%)
 create mode 100644 packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_layout.svelte
 rename packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/{ComponentListPanel.svelte => NewComponentPanel.svelte} (89%)
 create mode 100644 packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentTargetPanel.svelte

diff --git a/packages/builder/src/builderStore/index.js b/packages/builder/src/builderStore/index.js
index 9d7c3ca128..3a9b84b2c5 100644
--- a/packages/builder/src/builderStore/index.js
+++ b/packages/builder/src/builderStore/index.js
@@ -2,7 +2,7 @@ import { getFrontendStore } from "./store/frontend"
 import { getAutomationStore } from "./store/automation"
 import { getThemeStore } from "./store/theme"
 import { derived, writable } from "svelte/store"
-import { FrontendTypes, LAYOUT_NAMES } from "../constants"
+import { LAYOUT_NAMES } from "../constants"
 import { findComponent, findComponentPath } from "./componentUtils"
 
 export const store = getFrontendStore()
@@ -13,32 +13,26 @@ export const selectedScreen = derived(store, $store => {
   return $store.screens.find(screen => screen._id === $store.selectedScreenId)
 })
 
-export const currentAsset = selectedScreen
-
 export const selectedComponent = derived(
-  [store, currentAsset],
-  ([$store, $currentAsset]) => {
-    if (!$currentAsset || !$store.selectedComponentId) {
+  [store, selectedScreen],
+  ([$store, $selectedScreen]) => {
+    if (!$selectedScreen || !$store.selectedComponentId) {
       return null
     }
-    return findComponent($currentAsset?.props, $store.selectedComponentId)
+    return findComponent($selectedScreen?.props, $store.selectedComponentId)
   }
 )
 
 export const selectedComponentPath = derived(
-  [store, currentAsset],
-  ([$store, $currentAsset]) => {
+  [store, selectedScreen],
+  ([$store, $selectedScreen]) => {
     return findComponentPath(
-      $currentAsset?.props,
+      $selectedScreen?.props,
       $store.selectedComponentId
     ).map(component => component._id)
   }
 )
 
-export const currentAssetName = derived(currentAsset, $currentAsset => {
-  return $currentAsset?.name
-})
-
 export const mainLayout = derived(store, $store => {
   return $store.layouts?.find(
     layout => layout._id === LAYOUT_NAMES.MASTER.PRIVATE
@@ -47,4 +41,5 @@ export const mainLayout = derived(store, $store => {
 
 export const selectedAccessRole = writable("BASIC")
 
-export const screenSearchString = writable(null)
+// For compatibility
+export const currentAsset = selectedScreen
diff --git a/packages/builder/src/builderStore/store/frontend.js b/packages/builder/src/builderStore/store/frontend.js
index fe6721324e..8827aea3a8 100644
--- a/packages/builder/src/builderStore/store/frontend.js
+++ b/packages/builder/src/builderStore/store/frontend.js
@@ -48,7 +48,6 @@ const INITIAL_FRONTEND_STATE = {
   },
   currentFrontEndType: "none",
   selectedLayoutId: "",
-  selectedComponentId: "",
   errors: [],
   hasAppPackage: false,
   libraries: null,
@@ -61,6 +60,7 @@ const INITIAL_FRONTEND_STATE = {
 
   // URL params
   selectedScreenId: null,
+  selectedComponentId: null,
 }
 
 export const getFrontendStore = () => {
@@ -300,32 +300,6 @@ export const getFrontendStore = () => {
       },
     },
     components: {
-      select: component => {
-        const asset = get(currentAsset)
-        if (!asset || !component) {
-          return
-        }
-
-        // If this is the root component, select the asset instead
-        const parent = findComponentParent(asset.props, component._id)
-        if (parent == null) {
-          const state = get(store)
-          const isLayout = state.currentFrontEndType === FrontendTypes.LAYOUT
-          if (isLayout) {
-            store.actions.layouts.select(asset._id)
-          } else {
-            store.actions.screens.select(asset._id)
-          }
-          return
-        }
-
-        // Otherwise select the component
-        store.update(state => {
-          state.selectedComponentId = component._id
-          state.currentView = "component"
-          return state
-        })
-      },
       getDefinition: componentName => {
         if (!componentName) {
           return null
@@ -464,7 +438,10 @@ export const getFrontendStore = () => {
           parent._children = parent._children.filter(
             child => child._id !== component._id
           )
-          store.actions.components.select(parent)
+          store.update(state => {
+            state.selectedComponentId = parent._id
+            return state
+          })
         }
         await store.actions.preview.saveSelected()
       },
@@ -488,7 +465,10 @@ export const getFrontendStore = () => {
             parent._children = parent._children.filter(
               child => child._id !== component._id
             )
-            store.actions.components.select(parent)
+            store.update(state => {
+              state.selectedComponentId = parent._id
+              return state
+            })
           }
         }
       },
@@ -539,7 +519,7 @@ export const getFrontendStore = () => {
 
           // Save and select the new component
           promises.push(store.actions.preview.saveSelected())
-          store.actions.components.select(componentToPaste)
+          state.selectedComponentId = componentToPaste._id
           return state
         })
         await Promise.all(promises)
diff --git a/packages/builder/src/components/design/AppPanel/ComponentSelectionList.svelte b/packages/builder/src/components/design/AppPanel/ComponentSelectionList.svelte
deleted file mode 100644
index cabcea756e..0000000000
--- a/packages/builder/src/components/design/AppPanel/ComponentSelectionList.svelte
+++ /dev/null
@@ -1,114 +0,0 @@
-<script>
-  import {
-    ActionMenu,
-    ActionButton,
-    MenuItem,
-    Icon,
-    notifications,
-  } from "@budibase/bbui"
-  import { store, currentAssetName, selectedComponent } from "builderStore"
-  import structure from "./componentStructure.json"
-
-  $: enrichedStructure = enrichStructure(structure, $store.components)
-
-  const isChildAllowed = ({ name }, selectedComponent) => {
-    const currentComponent = store.actions.components.getDefinition(
-      selectedComponent?._component
-    )
-    return currentComponent?.illegalChildren?.includes(name.toLowerCase())
-  }
-
-  const enrichStructure = (structure, definitions) => {
-    let enrichedStructure = []
-    structure.forEach(item => {
-      if (typeof item === "string") {
-        const def = definitions[`@budibase/standard-components/${item}`]
-        if (def) {
-          enrichedStructure.push({
-            ...def,
-            isCategory: false,
-          })
-        }
-      } else {
-        enrichedStructure.push({
-          ...item,
-          isCategory: true,
-          children: enrichStructure(item.children || [], definitions),
-        })
-      }
-    })
-    return enrichedStructure
-  }
-
-  const onItemChosen = async item => {
-    if (!item.isCategory) {
-      try {
-        await store.actions.components.create(item.component)
-      } catch (error) {
-        notifications.error("Error creating component")
-      }
-    }
-  }
-</script>
-
-<div class="components">
-  {#each enrichedStructure as item}
-    <ActionMenu disabled={!item.isCategory}>
-      <ActionButton
-        icon={item.icon}
-        disabled={!item.isCategory && isChildAllowed(item, $selectedComponent)}
-        quiet
-        size="S"
-        slot="control"
-        dataCy={`category-${item.name}`}
-        on:click={() => onItemChosen(item)}
-      >
-        <div class="buttonContent">
-          {item.name}
-          {#if item.isCategory}
-            <Icon size="S" name="ChevronDown" />
-          {/if}
-        </div>
-      </ActionButton>
-      {#each item.children || [] as item}
-        {#if !item.showOnAsset || item.showOnAsset.includes($currentAssetName)}
-          <MenuItem
-            dataCy={`component-${item.name}`}
-            icon={item.icon}
-            on:click={() => onItemChosen(item)}
-            disabled={isChildAllowed(item, $selectedComponent)}
-          >
-            {item.name}
-          </MenuItem>
-        {/if}
-      {/each}
-    </ActionMenu>
-  {/each}
-</div>
-
-<style>
-  .components {
-    display: flex;
-    flex-direction: row;
-    justify-content: flex-start;
-    align-items: center;
-    flex-wrap: wrap;
-  }
-  .components :global(> *) {
-    height: 32px;
-    display: grid;
-    place-items: center;
-  }
-
-  .buttonContent {
-    display: flex;
-    flex-direction: row;
-    justify-content: flex-start;
-    align-items: flex-end;
-  }
-  .buttonContent :global(svg) {
-    margin-left: 2px !important;
-    margin-right: 0 !important;
-    margin-bottom: -1px;
-  }
-</style>
diff --git a/packages/builder/src/components/design/NavigationPanel/FrontendNavigatePane.svelte b/packages/builder/src/components/design/NavigationPanel/FrontendNavigatePane.svelte
index c100a52329..9d8d1cc8cc 100644
--- a/packages/builder/src/components/design/NavigationPanel/FrontendNavigatePane.svelte
+++ b/packages/builder/src/components/design/NavigationPanel/FrontendNavigatePane.svelte
@@ -127,9 +127,6 @@
     <Tab title="Screens">
       <div class="tab-content-padding">
         <BBUILayout noPadding gap="XS" />
-        <div class="nav-items-container" bind:this={scrollRef}>
-          <ComponentNavigationTree />
-        </div>
       </div>
     </Tab>
     <Tab title="Layouts">
@@ -190,15 +187,6 @@
     gap: var(--spacing-xl);
   }
 
-  .nav-items-container {
-    border-top: var(--border-light);
-    margin: 0 calc(-1 * var(--spacing-xl));
-    padding: var(--spacing-m) 0;
-    flex: 1 1 auto;
-    overflow: auto;
-    height: 0;
-    position: relative;
-  }
   .nav-items-container--layouts {
     border-top: none;
     margin-top: calc(-1 * var(--spectrum-global-dimension-static-size-150));
diff --git a/packages/builder/src/components/design/NavigationPanel/NavigationPanel.svelte b/packages/builder/src/components/design/NavigationPanel/NavigationPanel.svelte
index 1dcebb4b62..b295182562 100644
--- a/packages/builder/src/components/design/NavigationPanel/NavigationPanel.svelte
+++ b/packages/builder/src/components/design/NavigationPanel/NavigationPanel.svelte
@@ -23,7 +23,9 @@
       </div>
     {/if}
   </div>
-  <slot />
+  <div class="body">
+    <slot />
+  </div>
 </div>
 
 <style>
@@ -35,7 +37,6 @@
     flex-direction: column;
     justify-content: flex-start;
     align-items: stretch;
-    overflow: auto;
   }
   .navigation-panel.wide {
     width: 360px;
@@ -78,4 +79,13 @@
   .add-button :global(svg) {
     fill: white;
   }
+  .body {
+    flex: 1 1 auto;
+    overflow: auto;
+    overflow-x: hidden;
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-start;
+    align-items: stretch;
+  }
 </style>
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/index.svelte b/packages/builder/src/components/design/_old/ComponentNavigationTree.svelte
similarity index 89%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/index.svelte
rename to packages/builder/src/components/design/_old/ComponentNavigationTree.svelte
index ed064f8307..a2032441c3 100644
--- a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/index.svelte
+++ b/packages/builder/src/components/design/_old/ComponentNavigationTree.svelte
@@ -64,20 +64,11 @@
   {#each paths as path, idx (path)}
     <PathTree border={idx > 0} {path} route={routes[path]} />
   {/each}
-  {#if !paths.length}
-    <div class="empty">
-      There aren't any screens configured with this access role.
-    </div>
-  {/if}
+  {#if !paths.length}{/if}
 </div>
 
 <style>
   .root.has-screens {
     min-width: max-content;
   }
-  div.empty {
-    font-size: var(--font-size-s);
-    color: var(--grey-5);
-    padding: var(--spacing-xs) var(--spacing-xl);
-  }
 </style>
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/LayoutDropdownMenu.svelte b/packages/builder/src/components/design/_old/LayoutDropdownMenu.svelte
similarity index 100%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/LayoutDropdownMenu.svelte
rename to packages/builder/src/components/design/_old/LayoutDropdownMenu.svelte
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/PathDropdownMenu.svelte b/packages/builder/src/components/design/_old/PathDropdownMenu.svelte
similarity index 100%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/PathDropdownMenu.svelte
rename to packages/builder/src/components/design/_old/PathDropdownMenu.svelte
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/PathTree.svelte b/packages/builder/src/components/design/_old/PathTree.svelte
similarity index 92%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/PathTree.svelte
rename to packages/builder/src/components/design/_old/PathTree.svelte
index 30520a6212..110338e733 100644
--- a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/PathTree.svelte
+++ b/packages/builder/src/components/design/_old/PathTree.svelte
@@ -1,10 +1,5 @@
 <script>
-  import {
-    store,
-    selectedComponent,
-    currentAsset,
-    screenSearchString,
-  } from "builderStore"
+  import { store, selectedComponent, currentAsset } from "builderStore"
   import instantiateStore from "./dragDropStore"
   import ComponentTree from "./ComponentTree.svelte"
   import PathDropdownMenu from "./PathDropdownMenu.svelte"
diff --git a/packages/builder/src/pages/builder/app/[application]/design/_components/AppPanel.svelte b/packages/builder/src/pages/builder/app/[application]/design/_components/AppPanel.svelte
index e9fc315b87..7934a85225 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/_components/AppPanel.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/_components/AppPanel.svelte
@@ -12,7 +12,7 @@
   $: roleName = $roles.find(x => x._id === roleId)?.name || "Unknown"
 
   // Needs to be absolute as we embed this component from multiple different URLs
-  $: newComponentUrl = `/builder/app/${store.appId}/design/components/${$selectedScreen?._id}/new`
+  $: newComponentUrl = `/builder/app/${$store.appId}/design/components/${$selectedScreen?._id}/new`
 
   const getRoleColor = roleId => {
     return RoleColours[roleId] || "#ffa500"
diff --git a/packages/builder/src/pages/builder/app/[application]/design/_components/AppPreview.svelte b/packages/builder/src/pages/builder/app/[application]/design/_components/AppPreview.svelte
index e87f2b2a49..c1d0d810a0 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/_components/AppPreview.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/_components/AppPreview.svelte
@@ -140,7 +140,10 @@
 
     try {
       if (type === "select-component" && data.id) {
-        store.actions.components.select({ _id: data.id })
+        store.update(state => {
+          state.selectedComponentId = data.id
+          return state
+        })
       } else if (type === "update-prop") {
         await store.actions.components.updateProp(data.prop, data.value)
       } else if (type === "delete-component" && data.id) {
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/ComponentDropdownMenu.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentDropdownMenu.svelte
similarity index 100%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/ComponentDropdownMenu.svelte
rename to packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentDropdownMenu.svelte
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentNavigationPanel.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentNavigationPanel.svelte
index e54925fbae..98d087d8de 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentNavigationPanel.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentNavigationPanel.svelte
@@ -1,9 +1,63 @@
 <script>
   import NavigationPanel from "components/design/NavigationPanel/NavigationPanel.svelte"
+  import ComponentTree from "./ComponentTree.svelte"
+  import instantiateStore from "./dragDropStore.js"
   import { goto } from "@roxi/routify"
-  import { Layout, Search } from "@budibase/bbui"
+  import { store, selectedScreen, selectedComponent } from "builderStore"
+  import NavItem from "components/common/NavItem.svelte"
+  import ScreenslotDropdownMenu from "./ScreenslotDropdownMenu.svelte"
+  import { setContext } from "svelte"
 
-  let searchString
+  const dragDropStore = instantiateStore()
+  let scrollRef
+
+  const scrollTo = bounds => {
+    if (!bounds) {
+      return
+    }
+    const sidebarWidth = 259
+    const navItemHeight = 32
+    const { scrollLeft, scrollTop, offsetHeight } = scrollRef
+    let scrollBounds = scrollRef.getBoundingClientRect()
+    let newOffsets = {}
+
+    // Calculate left offset
+    const offsetX = bounds.left + bounds.width + scrollLeft - 40
+    if (offsetX > sidebarWidth) {
+      newOffsets.left = offsetX - sidebarWidth
+    } else {
+      newOffsets.left = 0
+    }
+    if (newOffsets.left === scrollLeft) {
+      delete newOffsets.left
+    }
+
+    // Calculate top offset
+    const offsetY = bounds.top - scrollBounds?.top + scrollTop
+    if (offsetY > scrollTop + offsetHeight - 2 * navItemHeight) {
+      newOffsets.top = offsetY - offsetHeight + 2 * navItemHeight
+    } else if (offsetY < scrollTop + navItemHeight) {
+      newOffsets.top = offsetY - navItemHeight
+    } else {
+      delete newOffsets.top
+    }
+
+    // Skip if offset is unchanged
+    if (newOffsets.left == null && newOffsets.top == null) {
+      return
+    }
+
+    // Smoothly scroll to the offset
+    scrollRef.scroll({
+      ...newOffsets,
+      behavior: "smooth",
+    })
+  }
+
+  // Set scroll context so components can invoke scrolling when selected
+  setContext("scroll", {
+    scrollTo,
+  })
 </script>
 
 <NavigationPanel
@@ -11,11 +65,36 @@
   showAddButton
   onClickAddButton={() => $goto("../new")}
 >
-  <Layout paddingX="L" paddingY="XL" gap="S">
-    <Search
-      placeholder="Search"
-      value={searchString}
-      on:change={e => (searchString = e.detail)}
+  <div class="nav-items-container" bind:this={scrollRef}>
+    <NavItem
+      text="Screen"
+      withArrow
+      indentLevel={0}
+      selected={$store.selectedComponentId === $selectedScreen?.props._id}
+      opened
+      scrollable
+      on:click={() => {
+        $store.selectedComponentId = $selectedScreen?.props._id
+      }}
+    >
+      <ScreenslotDropdownMenu component={$selectedScreen?.props} />
+    </NavItem>
+    <ComponentTree
+      level={0}
+      components={$selectedScreen?.props._children}
+      currentComponent={$selectedComponent}
+      {dragDropStore}
     />
-  </Layout>
+  </div>
 </NavigationPanel>
+
+<style>
+  .nav-items-container {
+    margin: 0 calc(-1 * var(--spacing-l));
+    padding: var(--spacing-xl) var(--spacing-l);
+    flex: 1 1 auto;
+    overflow: auto;
+    height: 0;
+    position: relative;
+  }
+</style>
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/ComponentTree.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentTree.svelte
similarity index 94%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/ComponentTree.svelte
rename to packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentTree.svelte
index 6b78bc40c1..e0a40cda30 100644
--- a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/ComponentTree.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ComponentTree.svelte
@@ -9,16 +9,11 @@
 
   export let components = []
   export let currentComponent
-  export let onSelect = () => {}
   export let level = 0
   export let dragDropStore
 
   let closedNodes = {}
 
-  const selectComponent = component => {
-    store.actions.components.select(component)
-  }
-
   const dragstart = component => e => {
     e.dataTransfer.dropEffect = DropEffect.MOVE
     dragDropStore.actions.dragstart(component)
@@ -86,7 +81,11 @@
 
 <ul>
   {#each components || [] as component, index (component._id)}
-    <li on:click|stopPropagation={() => selectComponent(component)}>
+    <li
+      on:click|stopPropagation={() => {
+        $store.selectedComponentId = component._id
+      }}
+    >
       {#if $dragDropStore?.targetComponent === component && $dragDropStore.dropPosition === DropPosition.ABOVE}
         <div
           on:drop={onDrop}
@@ -98,6 +97,7 @@
       {/if}
 
       <NavItem
+        scrollable
         draggable
         on:dragend={dragDropStore.actions.reset}
         on:dragstart={dragstart(component)}
@@ -117,7 +117,6 @@
         <svelte:self
           components={component._children}
           {currentComponent}
-          {onSelect}
           {dragDropStore}
           level={level + 1}
         />
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ScreenslotDropdownMenu.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ScreenslotDropdownMenu.svelte
new file mode 100644
index 0000000000..7ec7b0821c
--- /dev/null
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/ScreenslotDropdownMenu.svelte
@@ -0,0 +1,52 @@
+<script>
+  import { store } from "builderStore"
+  import { ActionMenu, MenuItem, Icon, notifications } from "@budibase/bbui"
+
+  export let component
+
+  $: definition = store.actions.components.getDefinition(component?._component)
+  $: noPaste = !$store.componentToPaste
+
+  // "editable" has been repurposed for inline text editing.
+  // It remains here for legacy compatibility.
+  // Future components should define "static": true for indicate they should
+  // not show a context menu.
+  $: showMenu = definition?.editable !== false && definition?.static !== true
+
+  const storeComponentForCopy = (cut = false) => {
+    store.actions.components.copy(component, cut)
+  }
+
+  const pasteComponent = mode => {
+    try {
+      store.actions.components.paste(component, mode)
+    } catch (error) {
+      notifications.error("Error saving component")
+    }
+  }
+</script>
+
+{#if showMenu}
+  <ActionMenu>
+    <div slot="control" class="icon">
+      <Icon size="S" hoverable name="MoreSmallList" />
+    </div>
+    <MenuItem icon="Copy" on:click={() => storeComponentForCopy(false)}>
+      Copy
+    </MenuItem>
+    <MenuItem
+      icon="ShowOneLayer"
+      on:click={() => pasteComponent("inside")}
+      disabled={noPaste}
+    >
+      Paste inside
+    </MenuItem>
+  </ActionMenu>
+{/if}
+
+<style>
+  .icon {
+    display: grid;
+    place-items: center;
+  }
+</style>
diff --git a/packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/dragDropStore.js b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/dragDropStore.js
similarity index 100%
rename from packages/builder/src/components/design/NavigationPanel/ComponentNavigationTree/dragDropStore.js
rename to packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_components/dragDropStore.js
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_layout.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_layout.svelte
new file mode 100644
index 0000000000..c877bba443
--- /dev/null
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/[componentId]/_layout.svelte
@@ -0,0 +1,30 @@
+<script>
+  import { syncURLToState } from "helpers/urlStateSync"
+  import { store, selectedScreen } from "builderStore"
+  import { goto, params, redirect } from "@roxi/routify"
+  import { onDestroy } from "svelte"
+  import { findComponent } from "builderStore/componentUtils"
+
+  // Keep URL and state in sync for selected component ID
+  const stopSyncing = syncURLToState({
+    keys: [
+      {
+        url: "componentId",
+        state: "selectedComponentId",
+        validate: componentId => {
+          return !!findComponent($selectedScreen.props, componentId)
+        },
+        fallbackUrl: "../",
+      },
+    ],
+    store,
+    params,
+    goto,
+    redirect,
+    baseUrl: "..",
+  })
+
+  onDestroy(stopSyncing)
+</script>
+
+<slot />
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/_layout.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/_layout.svelte
index 5a8d26a452..491db67ddd 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/_layout.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/_layout.svelte
@@ -18,6 +18,7 @@
     params,
     goto,
     redirect,
+    baseUrl: "..",
   })
 
   onDestroy(stopSyncing)
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/index.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/index.svelte
index e7f6eca5d7..02ce985c9f 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/index.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/index.svelte
@@ -6,7 +6,7 @@
   onMount(() => {
     if ($selectedScreen) {
       // Select the screen slot if a screen exists
-      $redirect(`./slot`)
+      $redirect(`./${$selectedScreen.props._id}`)
     } else {
       // Otherwise go up so we can select a new valid screen
       $redirect("../")
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/ComponentListPanel.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentPanel.svelte
similarity index 89%
rename from packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/ComponentListPanel.svelte
rename to packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentPanel.svelte
index 6927bc8f15..b3315403af 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/ComponentListPanel.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentPanel.svelte
@@ -10,6 +10,7 @@
     Icon,
     Body,
     Divider,
+    notifications,
   } from "@budibase/bbui"
   import structure from "./componentStructure.json"
   import { store } from "builderStore"
@@ -75,7 +76,20 @@
     return structure
   }
 
-  const addComponent = () => {}
+  const isChildAllowed = ({ name }, selectedComponent) => {
+    const currentComponent = store.actions.components.getDefinition(
+      selectedComponent?._component
+    )
+    return currentComponent?.illegalChildren?.includes(name.toLowerCase())
+  }
+
+  const addComponent = async item => {
+    try {
+      await store.actions.components.create(item.component)
+    } catch (error) {
+      notifications.error("Error creating component")
+    }
+  }
 </script>
 
 <NavigationPanel
@@ -125,7 +139,7 @@
     {/each}
   {:else}
     <Layout paddingX="L" paddingY="XL" gap="S">
-      <Body size="S">Blocks are a collection of pre-built components</Body>
+      <Body>Blocks are a collection of pre-built components</Body>
       <Layout noPadding gap="XS">
         {#each blocks as block}
           <div class="component block">
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentTargetPanel.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentTargetPanel.svelte
new file mode 100644
index 0000000000..fd43983d9c
--- /dev/null
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/_components/NewComponentTargetPanel.svelte
@@ -0,0 +1,10 @@
+<script>
+  import SettingsPanel from "components/design/SettingsPanel/SettingsPanel.svelte"
+  import { Body, Layout } from "@budibase/bbui"
+</script>
+
+<SettingsPanel title="Screen" icon="WebPage">
+  <Layout paddingX="L" paddingY="XL">
+    <Body>The component you add will be placed inside Screen</Body>
+  </Layout>
+</SettingsPanel>
diff --git a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/index.svelte b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/index.svelte
index ac287edf6f..4f8a42c6d4 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/index.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/components/[screenId]/new/index.svelte
@@ -1,5 +1,7 @@
 <script>
-  import ComponentListPanel from "./_components/ComponentListPanel.svelte"
+  import NewComponentPanel from "./_components/NewComponentPanel.svelte"
+  import NewComponentTargetPanel from "./_components/NewComponentTargetPanel.svelte"
 </script>
 
-<ComponentListPanel />
+<NewComponentPanel />
+<NewComponentTargetPanel />
diff --git a/packages/builder/src/pages/builder/app/[application]/design/screens/_components/ScreenNavigationPanel.svelte b/packages/builder/src/pages/builder/app/[application]/design/screens/_components/ScreenNavigationPanel.svelte
index 5f37f1f4a5..9728fb43c9 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/screens/_components/ScreenNavigationPanel.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/screens/_components/ScreenNavigationPanel.svelte
@@ -67,6 +67,19 @@
       <ScreenDropdownMenu screenId={screen._id} />
     </NavItem>
   {/each}
+  {#if !filteredScreens?.length}
+    <div class="empty">
+      There aren't any screens matching the current filters
+    </div>
+  {/if}
 </NavigationPanel>
 
 <ScreenWizard bind:showModal={showNewScreenModal} />
+
+<style>
+  .empty {
+    font-size: var(--spectrum-global-dimension-font-size-75);
+    color: var(--grey-7);
+    padding: 0 var(--spacing-l);
+  }
+</style>
diff --git a/packages/builder/src/pages/builder/app/[application]/design/theme/index.svelte b/packages/builder/src/pages/builder/app/[application]/design/theme/index.svelte
index 8687344ca7..f21267d810 100644
--- a/packages/builder/src/pages/builder/app/[application]/design/theme/index.svelte
+++ b/packages/builder/src/pages/builder/app/[application]/design/theme/index.svelte
@@ -6,9 +6,7 @@
 
 <NavigationPanel title="Theme">
   <Layout paddingX="L" paddingY="XL" gap="S">
-    <Body size="S">
-      Your theme is set across all the screens within your app
-    </Body>
+    <Body>Your theme is set across all the screens within your app</Body>
     <ThemeEditor />
   </Layout>
 </NavigationPanel>