Feat/Picker - support custom modal (#507)

* Initial commit

* Added support for cutom modal

* typo fix

* Added custom modal example

* Cosmetics

* Update index.js

Author: ArnonZ

demo/src/screens/componentScreens/PickerScreen.js

@@ -1,7 +1,7 @@
 import _ from 'lodash';
 import React, {Component} from 'react';
 import {ScrollView, Image} from 'react-native';
-import {View, Colors, Text, Stepper, Typography, Picker, Avatar, Assets, TagsInput} from 'react-native-ui-lib'; //eslint-disable-line
+import {View, Colors, Dialog, Text, Stepper, Typography, Picker, Avatar, Assets, TagsInput} from 'react-native-ui-lib'; //eslint-disable-line
 import contacts from '../../data/conversations';
 import tagIcon from '../../assets/icons/tags.png';
 import dropdown from '../../assets/icons/chevronDown.png';
@@ -29,6 +29,7 @@ export default class PickerScreen extends Component {
       // language: {value: 'java', label: 'Java'},
       language: undefined,
       languages: [],
+      customModalValues: [],
       filter: filters[0],
       contact: contacts[0],
       tags: [{label: 'Amit'}, {label: 'Ethan'}],
@@ -37,11 +38,34 @@ export default class PickerScreen extends Component {
     };
   }
 
+  renderDialog = modalProps => {
+    const {visible, toggleModal, children} = modalProps;
+
+    return (
+      <Dialog
+        visible={visible}
+        onDismiss={() => toggleModal(false)}
+        width="100%"
+        height="45%"
+        bottom
+        useSafeArea
+        style={{paddingTop: 20, backgroundColor: Colors.white}}
+      >
+        <View flex>
+          <Text marginL-15 text60>
+            Custom modal
+          </Text>
+          <ScrollView>{children}</ScrollView>
+        </View>
+      </Dialog>
+    );
+  };
+
   render() {
     return (
       <ScrollView keyboardShouldPersistTaps="always">
         <View flex padding-20>
-          <Text text40 marginB-20>
+          <Text text40>
             Picker
           </Text>
           <Picker
@@ -97,7 +121,8 @@ export default class PickerScreen extends Component {
               style: {width: 200},
               color: Colors.violet30,
               labelStyle: {fontSize: 32, fontFamily: 'sans-serif-condensed-light'},
-              itemHeight: 55}}
+              itemHeight: 55
+            }}
             selectLabelStyle={{color: Colors.violet30}}
             cancelLabelStyle={{color: Colors.violet30}}
           >
@@ -106,6 +131,22 @@ export default class PickerScreen extends Component {
             ))}
           </Picker>
 
+          <View marginT-20>
+            <Picker
+              title="Custom modal"
+              placeholder="Pick multiple Languages"
+              value={this.state.customModalValues}
+              onChange={items => this.setState({customModalValues: items})}
+              mode={Picker.modes.MULTI}
+              rightIconSource={dropdown}
+              renderCustomModal={this.renderDialog}
+            >
+              {_.map(options, option => (
+                <Picker.Item key={option.value} value={option} label={option.label} disabled={option.disabled} />
+              ))}
+            </Picker>
+          </View>
+
           <Text marginT-20 marginB-10 text70 dark60>
             Custom Picker:
           </Text>

src/components/picker/index.js

@@ -14,13 +14,12 @@ import NativePicker from './NativePicker';
 import PickerModal from './PickerModal';
 import PickerItem from './PickerItem';
 
-
 const PICKER_MODES = {
   SINGLE: 'SINGLE',
-  MULTI: 'MULTI',
+  MULTI: 'MULTI'
 };
 const ItemType = PropTypes.shape({
-  value: PropTypes.any, 
+  value: PropTypes.any,
   label: PropTypes.string
 });
 
@@ -36,7 +35,13 @@ class Picker extends BaseComponent {
     /**
      * Picker current value in the shape of {value: ..., label: ...}, for custom shape use 'getItemValue' prop
      */
-    value: PropTypes.oneOfType([ItemType, PropTypes.arrayOf(ItemType), PropTypes.object, PropTypes.string, PropTypes.number]),
+    value: PropTypes.oneOfType([
+      ItemType,
+      PropTypes.arrayOf(ItemType),
+      PropTypes.object,
+      PropTypes.string,
+      PropTypes.number
+    ]),
     /**
      * Callback for when picker value change
      */
@@ -59,6 +64,10 @@ class Picker extends BaseComponent {
      * Render custom picker item
      */
     renderItem: PropTypes.func,
+    /**
+     * Render custom picker modal (e.g ({visible, children, toggleModal}) => {...})
+     */
+    renderCustomModal: PropTypes.func,
     /**
      * Custom picker props (when using renderPicker, will apply on the button wrapper)
      */
@@ -129,7 +138,6 @@ class Picker extends BaseComponent {
 
     this.state = {
       value: props.value,
-      showModal: false,
       selectedItemPosition: 0,
     };
 
@@ -141,7 +149,7 @@ class Picker extends BaseComponent {
     }
 
     if (props.useNativePicker && _.isPlainObject(props.value)) {
-      console.warn('UILib Picker: dont use object as value for native picker, use either string or a number');
+      console.warn('UILib Picker: don\'t use object as value for native picker, use either string or a number');
     }
   }
 
@@ -153,7 +161,7 @@ class Picker extends BaseComponent {
 
   getLabel() {
     const {value} = this.state;
-    
+
     if (_.isArray(value)) {
       return _.chain(value)
         .map('label')
@@ -168,34 +176,34 @@ class Picker extends BaseComponent {
   handlePickerOnPress = () => {
     this.toggleExpandableModal(true);
     _.invoke(this.props, 'onPress');
-  }
+  };
 
-  toggleExpandableModal = (value) => {
+  toggleExpandableModal = value => {
     this.setState({showExpandableModal: value});
-  }
+  };
 
-  toggleItemSelection = (item) => {
+  toggleItemSelection = item => {
     const {value} = this.state;
     const newValue = _.xorBy(value, [item], 'value');
     this.setState({
       value: newValue,
     });
-  }
+  };
 
   cancelSelect = () => {
     this.setState({
       value: this.props.value,
     });
     this.toggleExpandableModal(false);
-  }
+  };
 
-  onDoneSelecting = (item) => {
+  onDoneSelecting = item => {
     this.setState({searchValue: '', value: item}); // clean search when done selecting
     this.toggleExpandableModal(false);
     _.invoke(this.props, 'onChange', item);
-  }
+  };
 
-  onSearchChange = (searchValue) => {
+  onSearchChange = searchValue => {
     this.setState({
       searchValue,
     });
@@ -213,10 +221,10 @@ class Picker extends BaseComponent {
   appendPropsToChildren = () => {
     const {children, mode, getItemValue, showSearch, renderItem} = this.props;
     const {value, searchValue} = this.state;
-    const childrenWithProps = React.Children.map(children, (child) => {
+    const childrenWithProps = React.Children.map(children, child => {
       const childValue = PickerPresenter.getItemValue({getItemValue, ...child.props});
       const childLabel = PickerPresenter.getItemLabel({...child.props, getLabel: child.props.getItemLabel});
-      
+
       if (!showSearch || _.isEmpty(searchValue) || _.includes(_.lowerCase(childLabel), _.lowerCase(searchValue))) {
         const selectedValue = PickerPresenter.getItemValue({value, getItemValue});
         return React.cloneElement(child, {
@@ -230,7 +238,7 @@ class Picker extends BaseComponent {
     });
 
     return childrenWithProps;
-  }
+  };
 
   renderExpandableModal = () => {
     const {
@@ -241,8 +249,21 @@ class Picker extends BaseComponent {
       searchStyle,
       searchPlaceholder,
       renderCustomSearch,
-      listProps} = this.getThemeProps();
+      renderCustomModal,
+      listProps
+    } = this.getThemeProps();
     const {showExpandableModal, selectedItemPosition} = this.state;
+    const children = this.appendPropsToChildren(this.props.children);
+
+    if (renderCustomModal) {
+      const modalProps = {
+        visible: showExpandableModal,
+        toggleModal: this.toggleExpandableModal,
+        children,
+      };
+
+      return renderCustomModal(modalProps);
+    }
 
     return (
       <PickerModal
@@ -261,15 +282,17 @@ class Picker extends BaseComponent {
         renderCustomSearch={renderCustomSearch}
         listProps={listProps}
       >
-        {this.appendPropsToChildren(this.props.children)}
+        {children}
       </PickerModal>
     );
-  }
+  };
 
   render() {
     const {useNativePicker, renderPicker, customPickerProps, testID} = this.props;
 
-    if (useNativePicker) return <NativePicker {...this.props}/>;
+    if (useNativePicker) {
+      return <NativePicker {...this.props} />;
+    }
 
     if (_.isFunction(renderPicker)) {
       const {value} = this.state;