Implemented switch mode menu

src/JSONNode.js

@@ -397,11 +397,11 @@ export default class JSONNode extends Component {
 
     if (this.state.menu) {
       // hide context menu
-      JSONNode.hideContextMenu()
+      JSONNode.hideActionMenu()
     }
     else {
       // hide any currently visible context menu
-      JSONNode.hideContextMenu()
+      JSONNode.hideActionMenu()
 
       // show context menu
       this.setState({
@@ -419,11 +419,11 @@ export default class JSONNode extends Component {
 
     if (this.state.appendMenu) {
       // hide append context menu
-      JSONNode.hideContextMenu()
+      JSONNode.hideActionMenu()
     }
     else {
       // hide any currently visible context menu
-      JSONNode.hideContextMenu()
+      JSONNode.hideActionMenu()
 
       // show append context menu
       this.setState({
@@ -439,7 +439,7 @@ export default class JSONNode extends Component {
   /**
    * Singleton function to hide the currently visible context menu if any.
    */
-  static hideContextMenu () {
+  static hideActionMenu () {
     if (activeContextMenu) {
       activeContextMenu.setState({
         menu: null,
@@ -499,10 +499,11 @@ export default class JSONNode extends Component {
    * Search is done based on the CSS class 'jsoneditor'
    * @param event
    * @return {*}
-   * @private
    */
+  // TODO: move to TreeMode?
   static findRootElement (event) {
     function isEditorElement (elem) {
+      // FIXME: this is a bit tricky. can we use a special attribute or something?
       return elem.className.split(' ').indexOf('jsoneditor') !== -1
     }
 

src/TextMode.js

@@ -1,6 +1,7 @@
 import { h, Component } from 'preact'
 import { parseJSON } from './utils/jsonUtils'
 import { jsonToData, dataToJson, patchData } from './jsonData'
+import ModeButton from './menu/ModeButton'
 
 export default class TextMode extends Component {
   // TODO: define propTypes
@@ -25,8 +26,19 @@ export default class TextMode extends Component {
           class: 'jsoneditor-compact',
           title: 'Compact the JSON document',
           onClick: this.handleCompact
+        }),
+
+        // TODO: implement a button "Fix JSON"
+
+        h('div', {class: 'jsoneditor-vertical-menu-separator'}),
+
+        this.props.options.modes && h(ModeButton, {
+          open: this.state.modeMenuOpen,
+          modes: this.props.options.modes,
+          mode: this.props.mode,
+          onMode: this.props.onMode,
+          onClick: this.handleShowModeMenu
         })
-          // TODO: implement a button "Fix JSON"
       ]),
 
       h('div', {class: 'jsoneditor-contents'}, [

src/TreeMode.js

@@ -6,6 +6,7 @@ import {
   duplicate, insert, append, remove, changeType, changeValue, changeProperty, sort
 } from './actions'
 import JSONNode from './JSONNode'
+import ModeButton from './menu/ModeButton'
 import { parseJSON } from './utils/jsonUtils'
 
 const MAX_HISTORY_ITEMS = 1000   // maximum number of undo/redo items to be kept in memory
@@ -16,11 +17,11 @@ export default class TreeMode extends Component {
   constructor (props) {
     super(props)
 
-    const expand = this.props.options && this.props.options.expand || TreeMode.expand
+    const expand = this.props.options.expand || TreeMode.expand
     const data = jsonToData(this.props.data || {}, expand, [])
 
     this.state = {
-      options: {
+      nodeOptions: {
         name: null
       },
 
@@ -28,7 +29,7 @@ export default class TreeMode extends Component {
 
       history: [data],
       historyIndex: 0,
-      
+
       events: {
         onChangeProperty: this.handleChangeProperty,
         onChangeValue: this.handleChangeValue,
@@ -49,38 +50,14 @@ export default class TreeMode extends Component {
   render (props, state) {
     // TODO: make mode tree dynamic
     return h('div', {class: 'jsoneditor jsoneditor-mode-tree'}, [
-      h('div', {class: 'jsoneditor-menu'}, [
+      this.renderMenu(),
-          h('button', {
-            class: 'jsoneditor-expand-all',
-            title: 'Expand all objects and arrays',
-            onClick: this.handleExpandAll
-          }),
-          h('button', {
-            class: 'jsoneditor-collapse-all',
-            title: 'Collapse all objects and arrays',
-            onClick: this.handleCollapseAll
-          }),
-          h('div', {class: 'jsoneditor-vertical-menu-separator'}),
-          h('button', {
-            class: 'jsoneditor-undo',
-            title: 'Undo last action',
-            disabled: !this.canUndo(),
-            onClick: this.undo
-          }),
-          h('button', {
-            class: 'jsoneditor-redo',
-            title: 'Redo',
-            disabled: !this.canRedo(),
-            onClick: this.redo
-          })
-      ]),
 
-      h('div', {class: 'jsoneditor-contents jsoneditor-tree-contents', onClick: JSONNode.hideContextMenu}, [
+      h('div', {class: 'jsoneditor-contents jsoneditor-tree-contents', onClick: this.handleHideMenus}, [
         h('ul', {class: 'jsoneditor-list jsoneditor-root'}, [
           h(JSONNode, {
             data: state.data,
             events: state.events,
-            options: state.options,
+            options: state.nodeOptions,
             parent: null,
             prop: null
           })
@@ -89,6 +66,51 @@ export default class TreeMode extends Component {
     ])
   }
 
+  renderMenu () {
+    return h('div', {class: 'jsoneditor-menu'}, [
+      h('button', {
+        class: 'jsoneditor-expand-all',
+        title: 'Expand all objects and arrays',
+        onClick: this.handleExpandAll
+      }),
+      h('button', {
+        class: 'jsoneditor-collapse-all',
+        title: 'Collapse all objects and arrays',
+        onClick: this.handleCollapseAll
+      }),
+
+      h('div', {class: 'jsoneditor-vertical-menu-separator'}),
+
+      h('div', {style: 'display:inline-block'}, [
+        h('button', {
+          class: 'jsoneditor-undo',
+          title: 'Undo last action',
+          disabled: !this.canUndo(),
+          onClick: this.undo
+        }),
+      ]),
+      h('button', {
+        class: 'jsoneditor-redo',
+        title: 'Redo',
+        disabled: !this.canRedo(),
+        onClick: this.redo
+      }),
+
+      h('div', {class: 'jsoneditor-vertical-menu-separator'}),
+
+      this.props.options.modes && h(ModeButton, {
+        modes: this.props.options.modes,
+        mode: this.props.mode,
+        onMode: this.props.onMode
+      })
+    ])
+  }
+
+  /** @private */
+  handleHideMenus = () => {
+    JSONNode.hideActionMenu()
+  }
+
   /** @private */
   handleChangeValue = (path, value) => {
     this.handlePatch(changeValue(this.state.data, path, value))
@@ -184,7 +206,7 @@ export default class TreeMode extends Component {
    * @private
    */
   emitOnChange (patch, revert) {
-    if (this.props.options && this.props.options.onChange) {
+    if (this.props.options.onChange) {
       this.props.options.onChange(patch, revert)
     }
   }
@@ -275,7 +297,7 @@ export default class TreeMode extends Component {
     const data = jsonToData(json, options.expand || TreeMode.expand, [])
 
     this.setState({
-      options: setIn(this.state.options, ['name'], name),
+      nodeOptions: setIn(this.state.nodeOptions, ['name'], name),
 
       data,
       // TODO: do we want to keep history when .set(json) is called?
@@ -305,7 +327,7 @@ export default class TreeMode extends Component {
    * @return {string} text
    */
   getText () {
-    const indentation = this.props.options && this.props.options.indentation || 2
+    const indentation = this.props.options.indentation || 2
     return JSON.stringify(this.get(), null, indentation)
   }
 

src/develop.html

@@ -37,10 +37,14 @@
       window.patch = patch
       window.revert = revert
     },
+    onChangeMode: function (mode, prevMode) {
+      console.log('switched mode from', prevMode, 'to', mode)
+    },
     onError: function (err) {
       console.error(err)
       alert(err)
     },
+    modes: ['text', 'tree'],
     indentation: 4
   }
   const editor = jsoneditor(container, options)

src/index.js

@@ -17,7 +17,7 @@ const modes = {
  * @return {Object}
  * @constructor
  */
-function jsoneditor (container, options) {
+function jsoneditor (container, options = {}) {
 
   const editor = {
     isJSONEditor: true,
@@ -132,7 +132,11 @@ function jsoneditor (container, options) {
 
       // create new component
       element = render(
-          h(constructor, {options: editor._options}),
+          h(constructor, {
+            mode,
+            options: editor._options,
+            onMode: editor.setMode
+          }),
           editor._container)
 
       // set JSON (this can throw an error)
@@ -150,9 +154,14 @@ function jsoneditor (container, options) {
           editor._element.parentNode.removeChild(editor._element)
         }
 
+        const prevMode = editor._mode
         editor._mode = mode
         editor._element = element
         editor._component = element._component
+
+        if (editor._options.onChangeMode && prevMode) {
+          editor._options.onChangeMode(mode, prevMode)
+        }
       }
       else {
         // remove the just created component (where setText failed)

src/jsoneditor.less

@@ -306,6 +306,11 @@ div.jsoneditor-contextmenu.jsoneditor-contextmenu-top {
   bottom: 20px;
 }
 
+div.jsoneditor-modemenu.jsoneditor-modemenu {
+  top: 26px;
+  left: 0;
+}
+
 div.jsoneditor-menu-item {
   line-height: 0;
   font-size: 0;
@@ -500,6 +505,28 @@ button.jsoneditor-type-Array.jsoneditor-selected span.jsoneditor-icon {
   background-position: -96px 0;
 }
 
+div.jsoneditor-modes {
+  position: relative;
+  display: inline-block;
+  vertical-align: top;
+
+  button {
+    background: none;
+    width: auto;
+    padding: 2px 6px;
+  }
+
+  button.jsoneditor-type-modes {
+    width: 120px;
+    height: auto;
+    padding: 2px 6px;
+    border-radius: 0;
+
+    &:hover {
+      border: none;
+    }
+  }
+}
 
 textarea.jsoneditor-text {
   width: 100%;

src/menu/Menu.js

@@ -20,8 +20,6 @@ export default class Menu extends Component {
       expanding: null,  // menu index of expanding menu item
       collapsing: null  // menu index of collapsing menu item
     }
-
-    this.renderMenuItem = this.renderMenuItem.bind(this)
   }
 
   /**
@@ -45,7 +43,7 @@ export default class Menu extends Component {
     )
   }
 
-  renderMenuItem (item, index) {
+  renderMenuItem = (item, index) => {
     if (item.type === 'separator') {
       return h('div', {class: 'jsoneditor-menu-separator'})
     }

src/menu/ModeButton.js

@@ -0,0 +1,41 @@
+import { h, Component } from 'preact'
+import ModeMenu from './ModeMenu'
+import { toCapital } from '../utils/stringUtils'
+
+export default class ModeButton extends Component {
+  constructor (props) {
+    super (props)
+
+    this.state = {
+      open: false   // whether the menu is open or not
+    }
+  }
+
+  /**
+   * @param {{modes: string[], mode: string, onMode: function}} props
+   * @param state
+   * @return {*}
+   */
+  render (props, state) {
+    return h('div', {class: 'jsoneditor-modes'}, [
+      h('button', {
+        title: 'Switch mode',
+        onClick: this.handleOpen
+      }, `${toCapital(props.mode)} \u25BC`),
+
+      h(ModeMenu, {
+        ...props,
+        open: state.open,
+        onRequestClose: this.handleRequestClose
+      })
+    ])
+  }
+
+  handleOpen = () => {
+    this.setState({open: true})
+  }
+
+  handleRequestClose = () => {
+    this.setState({open: false})
+  }
+}

src/menu/ModeMenu.js

@@ -0,0 +1,97 @@
+import { h, Component } from 'preact'
+import { toCapital } from '../utils/stringUtils'
+
+export default class ModeMenu extends Component {
+  /**
+   * @param {{open, modes, mode, onMode}} props
+   * @param {Obect} state
+   * @return {JSX.Element}
+   */
+  render (props, state) {
+    if (props.open) {
+      const items = props.modes.map(mode => {
+        return h('button', {
+          title: `Switch to ${mode} mode`,
+          class: 'jsoneditor-menu-button jsoneditor-type-modes' +
+              ((mode === props.mode) ? ' jsoneditor-selected' : ''),
+          onClick: () => {
+            props.onMode(mode)
+            this.setState({ open: false })
+          }
+        }, toCapital(mode))
+      })
+
+      return h('div', {
+        class: 'jsoneditor-contextmenu jsoneditor-modemenu',
+        'isnodemenu': 'true',
+      }, items)
+    }
+    else {
+      return null
+    }
+  }
+
+  componentDidMount () {
+    this.updateRequestCloseListener()
+  }
+
+  componentDidUpdate () {
+    this.updateRequestCloseListener()
+  }
+
+  componentWillUnmount () {
+    this.removeRequestCloseListener()
+  }
+
+  updateRequestCloseListener () {
+    if (this.props.open) {
+      this.addRequestCloseListener()
+    }
+    else {
+      this.removeRequestCloseListener()
+    }
+  }
+
+  addRequestCloseListener () {
+    if (!this.handleRequestClose) {
+      // Attach event listener on next tick, else the current click to open
+      // the menu will immediately result in requestClose event as well
+      setTimeout(() => {
+        this.handleRequestClose = (event) => {
+          if (!ModeMenu.inNodeMenu(event.target)) {
+            this.props.onRequestClose()
+          }
+        }
+        window.addEventListener('click', this.handleRequestClose)
+      }, 0)
+    }
+  }
+
+  removeRequestCloseListener () {
+    if (this.handleRequestClose) {
+      window.removeEventListener('click', this.handleRequestClose)
+      this.handleRequestClose = null
+    }
+  }
+
+  /**
+   * Test whether any of the parent nodes of this element is the root of the
+   * NodeMenu (has an attribute isNodeMenu:true)
+   * @param elem
+   * @return {boolean}
+   */
+  static inNodeMenu (elem) {
+    let parent = elem
+
+    while (parent && parent.getAttribute) {
+      if (parent.getAttribute('isnodemenu')) {
+        return true
+      }
+      parent = parent.parentNode
+    }
+
+    return false
+  }
+
+  handleRequestClose = null
+}

src/typedef.js

@@ -32,6 +32,7 @@
  *
  * @typedef {{
  *   mode: 'tree' | 'text',
+ *   modes: string[],
  *   indentation: number | string,
  *   onChange: function (patch: JSONPatch, revert: JSONPatch),
  *   onError:  function (err: Error)

src/utils/stringUtils.js

@@ -109,4 +109,13 @@ export function findUniqueName (name, invalidNames) {
   }
 
   return validName
-}
+}
+
+/**
+ * Transform a text into lower case with the first character upper case
+ * @param {string} text
+ * @return {string}
+ */
+export function toCapital(text) {
+  return text[0].toUpperCase() + text.substr(1).toLowerCase()
+}