Implement object/array tag when collapsed, and delimiters [] and {} around the contents

src/App.svelte

@@ -8,33 +8,33 @@
 	export let searchText = ''
 
 	let json = {
-		// 'array': [1, 2, 3, {
+		'array': [1, 2, 3, {
-		// 	name: 'Item ' + 2,
+			name: 'Item ' + 2,
-		// 	id: String(2),
+			id: String(2),
-		// 	index: 2,
+			index: 2,
-		// 	time: new Date().toISOString(),
+			time: new Date().toISOString(),
-		// 	location: {
+			location: {
-		// 		latitude: 1.23,
+				latitude: 1.23,
-		// 		longitude: 23.44,
+				longitude: 23.44,
-		// 		coordinates: [23.44, 1.23]
+				coordinates: [23.44, 1.23]
-		// 	},
+			},
-		// }],
+		}],
 		'boolean': true,
 		'color': '#82b92c',
 		'null': null,
 		'number': 123,
-		// 'object': {'a': 'b', 'c': 'd', nested: {
+		'object': {'a': 'b', 'c': 'd', nested: {
-		// 	name: 'Item ' + 2,
+			name: 'Item ' + 2,
-		// 	id: String(2),
+			id: String(2),
-		// 	index: 2,
+			index: 2,
-		// 	time: new Date().toISOString(),
+			time: new Date().toISOString(),
-		// 	location: {
+			location: {
-		// 		latitude: 1.23,
+				latitude: 1.23,
-		// 		longitude: 23.44,
+				longitude: 23.44,
-		// 		coordinates: [23.44, 1.23]
+				coordinates: [23.44, 1.23]
-		// 	},
+			},
-		// }},
+		}},
-		// 'string': 'Hello World'
+		'string': 'Hello World'
 	}
 
 	let uniDirectionalValue = 'test uni directional flow in Svelte';

src/JSONNode.svelte

@@ -7,12 +7,12 @@
   import { escapeHTML } from './utils/stringUtils.js'
   import { createUpdateProps } from './utils/updateProps.js'
 
-  export let key = 'root'
+  export let key = undefined
   export let value
   export let searchResult
   export let onChangeKey
   export let onChangeValue
-  export let expanded = true
+  export let expanded = false
 
   const DEFAULT_LIMIT = 10000
   const escapeUnicode = false // TODO: pass via options
@@ -142,11 +142,25 @@
   }
 
   // FIXME: there is whitespace added around the separator in the HTML
-  .separator {
+  .separator,
+  .delimiter {
     display: inline;
     color: $gray;
   }
 
+  .tag {
+    border: none;
+    font-size: $font-size-small;
+    font-family: $font-family-menu;
+    color: white;
+    background: $light-gray;
+    border-radius: 2px;
+    padding: 0 4px;
+    margin-left: $input-padding;
+    margin-top: 2px;
+    cursor: pointer;
+  }
+
   .items,
   .props {
     padding-left: $indentation-width;
@@ -214,7 +228,8 @@
 </style>
 
 <div class='json-node'>
-  {#if type === 'array' || type === 'object'}
+  {#if type === 'array'}
+    <div class='header'>
       <button class='expand' on:click={toggle}>
         {#if expanded}
           <Icon data={faCaretDown} />
@@ -222,7 +237,6 @@
           <Icon data={faCaretRight} />
         {/if}
       </button>
-  {/if}
       {#if typeof key === 'string'}
         <div
           class="key {searchResult && searchResult[SEARCH_PROPERTY] ? 'search' : ''}"
@@ -233,7 +247,14 @@
         </div>
         <span class="separator">:</span>
       {/if}
-  {#if type === 'array'}
+      {#if expanded}
+        <span class="delimiter">[</span>
+      {:else}
+        <span class="delimiter">[</span>
+        <button class="tag" on:click={() => expanded = true}>{value.length} items</button>
+        <span class="delimiter">]</span>
+      {/if}
+    </div>
     {#if expanded}
       <div class="items">
         {#each items as item, index (index)}
@@ -251,8 +272,37 @@
           </div>
         {/if}
       </div>
+      <div class="footer">
+        <span class="delimiter">]</span>
+      </div>
     {/if}
   {:else if type === 'object'}
+    <div class='header'>
+      <button class='expand' on:click={toggle}>
+        {#if expanded}
+          <Icon data={faCaretDown} />
+        {:else}
+          <Icon data={faCaretRight} />
+        {/if}
+      </button>
+      {#if typeof key === 'string'}
+        <div
+          class="key {searchResult && searchResult[SEARCH_PROPERTY] ? 'search' : ''}"
+          contenteditable="true"
+          on:input={handleKeyInput}
+        >
+          {escapedKey}
+        </div>
+        <span class="separator">:</span>
+      {/if}
+      {#if expanded}
+        <span class="delimiter">&#123;</span>
+      {:else}
+        <span class="delimiter">&#123;</span>
+        <button class="tag" on:click={() => expanded = true}>{props.length} props</button>
+        <span class="delimiter">}</span>
+      {/if}
+    </div>
     {#if expanded}
       <div class="props">
         {#each props as prop (prop.id)}
@@ -265,8 +315,21 @@
           />
         {/each}
       </div>
+      <div class="footer">
+        <span class="delimiter">}</span>
+      </div>
     {/if}
   {:else}
+    {#if typeof key === 'string'}
+      <div
+        class="key {searchResult && searchResult[SEARCH_PROPERTY] ? 'search' : ''}"
+        contenteditable="true"
+        on:input={handleKeyInput}
+      >
+        {escapedKey}
+      </div>
+      <span class="separator">:</span>
+    {/if}
     <div
       class={valueClass}
       contenteditable="true"

src/styles.scss

@@ -1,11 +1,13 @@
 
 $font-family: "dejavu sans mono", "droid sans mono", consolas, monaco, "lucida console", "courier new", courier, monospace, sans-serif;
 $font-size: 10pt;
+$font-size-small: 11px;
 $font-family-menu: arial, "sans-serif";
 $font-size-icon: 16px;
 
 $line-height: 20px;
 
+$white: #fff;
 $black: #1A1A1A;
 $contentsMinHeight: 150px;
 $theme-color: #3883fa;