feat(netlify-cms-widget-list): add variable type definitions to list …

…widget (#1857)

dev-test/config.yml

@@ -195,3 +195,29 @@ collections: # A list of collections the CMS should be able to edit
                           widget: 'select',
                           options: ['a', 'b', 'c'],
                         }
+      - label: 'Typed List'
+        name: 'typed_list'
+        widget: 'list'
+        types:
+          - label: 'Type 1 Object'
+            name: 'type_1_object'
+            widget: 'object'
+            fields:
+              - { label: 'String', name: 'string', widget: 'string' }
+              - { label: 'Boolean', name: 'boolean', widget: 'boolean' }
+              - { label: 'Text', name: 'text', widget: 'text' }
+          - label: 'Type 2 Object'
+            name: 'type_2_object'
+            widget: 'object'
+            fields:
+              - { label: 'Number', name: 'number', widget: 'number' }
+              - { label: 'Select', name: 'select', widget: 'select', options: ['a', 'b', 'c'] }
+              - { label: 'Datetime', name: 'datetime', widget: 'datetime' }
+              - { label: 'Markdown', name: 'markdown', widget: 'markdown' }
+          - label: 'Type 3 Object'
+            name: 'type_3_object'
+            widget: 'object'
+            fields:
+              - { label: 'Date', name: 'date', widget: 'date' }
+              - { label: 'Image', name: 'image', widget: 'image' }
+              - { label: 'File', name: 'file', widget: 'file' }

packages/netlify-cms-ui-default/src/ObjectWidgetTopBar.js

@@ -3,6 +3,8 @@ import PropTypes from 'prop-types';
 import styled, { css } from 'react-emotion';
 import Icon from './Icon';
 import { colors, buttons } from './styles';
+import Dropdown, { StyledDropdownButton, DropdownItem } from './Dropdown';
+import ImmutablePropTypes from 'react-immutable-proptypes';
 
 const TopBarContainer = styled.div`
   align-items: center;
@@ -51,36 +53,70 @@ const AddButton = styled.button`
   }
 `;
 
-const ObjectWidgetTopBar = ({
-  allowAdd,
-  onAdd,
-  onCollapseToggle,
-  collapsed,
-  heading = null,
-  label,
-}) => (
-  <TopBarContainer>
-    <ExpandButtonContainer hasHeading={!!heading}>
-      <ExpandButton onClick={onCollapseToggle}>
-        <Icon type="chevron" direction={collapsed ? 'right' : 'down'} size="small" />
-      </ExpandButton>
-      {heading}
-    </ExpandButtonContainer>
-    {!allowAdd ? null : (
-      <AddButton onClick={onAdd}>
-        Add {label} <Icon type="add" size="xsmall" />
+class ObjectWidgetTopBar extends React.Component {
+  static propTypes = {
+    allowAdd: PropTypes.bool,
+    types: ImmutablePropTypes.list,
+    onAdd: PropTypes.func,
+    onAddType: PropTypes.func,
+    onCollapseToggle: PropTypes.func,
+    collapsed: PropTypes.bool,
+    heading: PropTypes.node,
+    label: PropTypes.string,
+  };
+
+  renderAddUI() {
+    if (!this.props.allowAdd) {
+      return null;
+    }
+    if (this.props.types && this.props.types.size > 0) {
+      return this.renderTypesDropdown(this.props.types);
+    } else {
+      return this.renderAddButton();
+    }
+  }
+
+  renderTypesDropdown(types) {
+    return (
+      <Dropdown
+        renderButton={() => (
+          <StyledDropdownButton>Add {this.props.label} item</StyledDropdownButton>
+        )}
+      >
+        {types.map((type, idx) => (
+          <DropdownItem
+            key={idx}
+            label={type.get('label', type.get('name'))}
+            onClick={() => this.props.onAddType(type.get('name'))}
+          />
+        ))}
+      </Dropdown>
+    );
+  }
+
+  renderAddButton() {
+    return (
+      <AddButton onClick={this.props.onAdd}>
+        Add {this.props.label} <Icon type="add" size="xsmall" />
       </AddButton>
-    )}
-  </TopBarContainer>
-);
+    );
+  }
 
-ObjectWidgetTopBar.propTypes = {
-  allowAdd: PropTypes.bool,
-  onAdd: PropTypes.func,
-  onCollapseToggle: PropTypes.func,
-  collapsed: PropTypes.bool,
-  heading: PropTypes.node,
-  label: PropTypes.string,
-};
+  render() {
+    const { onCollapseToggle, collapsed, heading = null } = this.props;
+
+    return (
+      <TopBarContainer>
+        <ExpandButtonContainer hasHeading={!!heading}>
+          <ExpandButton onClick={onCollapseToggle}>
+            <Icon type="chevron" direction={collapsed ? 'right' : 'down'} size="small" />
+          </ExpandButton>
+          {heading}
+        </ExpandButtonContainer>
+        {this.renderAddUI()}
+      </TopBarContainer>
+    );
+  }
+}
 
 export default ObjectWidgetTopBar;

packages/netlify-cms-widget-list/src/ListControl.js

@@ -6,6 +6,12 @@ import { List, Map } from 'immutable';
 import { partial } from 'lodash';
 import { SortableContainer, SortableElement, SortableHandle } from 'react-sortable-hoc';
 import { ObjectControl } from 'netlify-cms-widget-object';
+import {
+  TYPES_KEY,
+  getTypedFieldForValue,
+  resolveFieldKeyType,
+  getErrorMessageForTypedFieldAndValue,
+} from './typedListHelpers';
 import {
   ListItemTopBar,
   ObjectWidgetTopBar,
@@ -29,6 +35,7 @@ const StyledListItemTopBar = styled(ListItemTopBar)`
 const NestedObjectLabel = styled.div`
   display: ${props => (props.collapsed ? 'block' : 'none')};
   border-top: 0;
+  color: ${props => (props.error ? colors.errorText : 'inherit')};
   background-color: ${colors.textFieldBorder};
   padding: 13px;
   border-radius: 0 0 ${lengths.borderRadius} ${lengths.borderRadius};
@@ -57,6 +64,7 @@ const SortableList = SortableContainer(({ items, renderItem }) => {
 const valueTypes = {
   SINGLE: 'SINGLE',
   MULTIPLE: 'MULTIPLE',
+  MIXED: 'MIXED',
 };
 
 export default class ListControl extends React.Component {
@@ -101,6 +109,8 @@ export default class ListControl extends React.Component {
       return valueTypes.MULTIPLE;
     } else if (field.get('field')) {
       return valueTypes.SINGLE;
+    } else if (field.get(TYPES_KEY)) {
+      return valueTypes.MIXED;
     } else {
       return null;
     }
@@ -151,6 +161,13 @@ export default class ListControl extends React.Component {
     onChange((value || List()).push(parsedValue));
   };
 
+  handleAddType = (type, typeKey) => {
+    const { value, onChange } = this.props;
+    let parsedValue = Map().set(typeKey, type);
+    this.setState({ itemsCollapsed: this.state.itemsCollapsed.push(false) });
+    onChange((value || List()).push(parsedValue));
+  };
+
   /**
    * In case the `onChangeObject` function is frozen by a child widget implementation,
    * e.g. when debounced, always get the latest object value instead of using
@@ -163,7 +180,7 @@ export default class ListControl extends React.Component {
       const { value, metadata, onChange, field } = this.props;
       const collectionName = field.get('name');
       const newObjectValue =
-        this.getValueType() === valueTypes.MULTIPLE
+        this.getValueType() !== valueTypes.SINGLE
           ? this.getObjectValue(index).set(fieldName, newValue)
           : newValue;
       const parsedMetadata = {
@@ -208,6 +225,9 @@ export default class ListControl extends React.Component {
 
   objectLabel(item) {
     const { field } = this.props;
+    if (this.getValueType() === valueTypes.MIXED) {
+      return getTypedFieldForValue(field, item).get('label', field.get('name'));
+    }
     const multiFields = field.get('fields');
     const singleField = field.get('field');
     const labelField = (multiFields && multiFields.first()) || singleField;
@@ -233,9 +253,17 @@ export default class ListControl extends React.Component {
   };
 
   renderItem = (item, index) => {
-    const { field, classNameWrapper, editorControl, resolveWidget } = this.props;
+    const { classNameWrapper, editorControl, resolveWidget } = this.props;
     const { itemsCollapsed } = this.state;
     const collapsed = itemsCollapsed.get(index);
+    let field = this.props.field;
+
+    if (this.getValueType() === valueTypes.MIXED) {
+      field = getTypedFieldForValue(field, item);
+      if (!field) {
+        return this.renderErroneousTypedItem(index, item);
+      }
+    }
 
     return (
       <SortableListItem
@@ -263,6 +291,27 @@ export default class ListControl extends React.Component {
     );
   };
 
+  renderErroneousTypedItem(index, item) {
+    const field = this.props.field;
+    const errorMessage = getErrorMessageForTypedFieldAndValue(field, item);
+    return (
+      <SortableListItem
+        className={cx(styles.listControlItem, styles.listControlItemCollapsed)}
+        index={index}
+        key={`item-${index}`}
+      >
+        <StyledListItemTopBar
+          onCollapseToggle={null}
+          onRemove={partial(this.handleRemove, index)}
+          dragHandleHOC={SortableHandle}
+        />
+        <NestedObjectLabel collapsed={true} error={true}>
+          {errorMessage}
+        </NestedObjectLabel>
+      </SortableListItem>
+    );
+  }
+
   renderListControl() {
     const { value, forID, field, classNameWrapper } = this.props;
     const { itemsCollapsed } = this.state;
@@ -276,6 +325,8 @@ export default class ListControl extends React.Component {
         <ObjectWidgetTopBar
           allowAdd={field.get('allow_add', true)}
           onAdd={this.handleAdd}
+          types={field.get(TYPES_KEY, null)}
+          onAddType={type => this.handleAddType(type, resolveFieldKeyType(field))}
           heading={`${items.size} ${listLabel}`}
           label={labelSingular.toLowerCase()}
           onCollapseToggle={this.handleCollapseAllToggle}
@@ -292,14 +343,10 @@ export default class ListControl extends React.Component {
     );
   }
 
-  render() {
-    const { field, forID, classNameWrapper } = this.props;
+  renderInput() {
+    const { forID, classNameWrapper } = this.props;
     const { value } = this.state;
 
-    if (field.get('field') || field.get('fields')) {
-      return this.renderListControl();
-    }
-
     return (
       <input
         type="text"
@@ -312,4 +359,12 @@ export default class ListControl extends React.Component {
       />
     );
   }
+
+  render() {
+    if (this.getValueType() !== null) {
+      return this.renderListControl();
+    } else {
+      return this.renderInput();
+    }
+  }
 }

packages/netlify-cms-widget-list/src/typedListHelpers.js

@@ -0,0 +1,35 @@
+export const TYPES_KEY = 'types';
+export const TYPE_KEY = 'typeKey';
+export const DEFAULT_TYPE_KEY = 'type';
+
+export function getTypedFieldForValue(field, value) {
+  const typeKey = resolveFieldKeyType(field);
+  const types = field.get(TYPES_KEY);
+  const valueType = value.get(typeKey);
+  return types.find(type => type.get('name') === valueType);
+}
+
+export function resolveFunctionForTypedField(field) {
+  const typeKey = resolveFieldKeyType(field);
+  const types = field.get(TYPES_KEY);
+  return value => {
+    const valueType = value.get(typeKey);
+    return types.find(type => type.get('name') === valueType);
+  };
+}
+
+export function resolveFieldKeyType(field) {
+  return field.get(TYPE_KEY, DEFAULT_TYPE_KEY);
+}
+
+export function getErrorMessageForTypedFieldAndValue(field, value) {
+  const keyType = resolveFieldKeyType(field);
+  const type = value.get(keyType);
+  let errorMessage;
+  if (!type) {
+    errorMessage = `Error: item has no '${keyType}' property`;
+  } else {
+    errorMessage = `Error: item has illegal '${keyType}' property: '${type}'`;
+  }
+  return errorMessage;
+}