MARKET-1557 List Component

components/bl-list-component/README.md

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+# List
+
+List is the component that can be used in Backendless [UI-Builder](https://backendless.com/developers/#ui-builder). It allows you to add a standard list to your application. Select the type of list (ordered/unordered) and specify the data that will be displayed inside the list.
+More information about list you can find [here](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/li).
+
+<p align="center">
+  <img src="./thumbnail.png" alt="main thumbnail" width="780"/>
+</p>
+
+## Properties
+
+| Property   | Type                       | Default value | Logic           | Data Binding | UI Setting | Description                                                                                                                                                                                                             |
+|------------|----------------------------|---------------|-----------------|--------------|------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Type       | *Select* <br> [`ul`, `ol`] | `ul`          | Type Logic      | NO           | YES        | Controls the type of list(ul/ol).                                                                                                                                                                                       |
+| Items List | *JSON*                     | `[]`          | ListItems Logic | YES          | NO         | Specifies a JSON array containing data of the list items. Watch [Codeless Examples] (#Examples). Signature of items list: [ <Item> ]. Signature of item: { content: String, children: [ <Item> ], typeOfList: String }. |
+| Background | *Color*                    |               |                 | NO           | YES        | Controls the background color of the main block.                                                                                                                                                                        |
+| Width      | *Text*                     |               |                 | NO           | YES        | Controls the width of the main block.                                                                                                                                                                                   |
+| Color      | *Color*                    |               |                 | NO           | YES        | Controls the color of the list items.                                                                                                                                                                                   |
+| Font Size  | *Text*                     |               |                 | NO           | YES        | Controls the font size of the list items.                                                                                                                                                                               |
+| Padding    | *Text*                     |               |                 | NO           | YES        | Controls the padding of the list items.                                                                                                                                                                                 |
+
+## Events
+
+| Name                      | Triggers                                               | Context Blocks |
+|---------------------------|--------------------------------------------------------|----------------|
+| On Click List Item        | when the user click any item of the list               | `List Item`    |
+
+## Styles
+
+**Theme**
+````
+@bl-customComponent-list-theme: @themePrimary;
+@bl-customComponent-list-themeTextColor: @appTextColor;
+````
+
+**Dimensions**
+```
+@bl-customComponent-list-item-fontSize: 1rem;
+```
+
+## Examples
+
+Below is a Codeless Example highlighting how to use the List component:
+
+![list data example](example-images/list-data-example.png)
+![list data example view](example-images/list-data-example-view.png)
+
+<details>
+<summary>Try yourself</summary>
+
+```
+<block xmlns="http://www.w3.org/1999/xhtml" type="lists_create_with" id="}*;|,#0_Z[tOJ?@cKV9H" x="150.875" y="100"><mutation items="3"></mutation><value name="ADD0"><block type="create_object" id="/zK*8nmzV+?ML[Tf-27e"><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="F[+@LEq=j2.Q/(hM$]iK"><field name="TEXT">Coffee</field></block></value></block></value><value name="ADD1"><block type="create_object" id="hm~b/suf0wkub39.WNAH"><mutation><properties><item id="property" prop-name="content"></item><item id="property" prop-name="children"></item><item id="property" prop-name="typeOfList"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="6yE6YRpt;FXa8Nrjnol*"><field name="TEXT">Tea</field></block></value><value name="create_object_mutator_container_properties_stack_property1"><block type="lists_create_with" id="8I82hc[apoLNykUEIw,h"><mutation items="3"></mutation><value name="ADD0"><block type="create_object" id="]jaCGrMskWME[wAX%$er"><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="uLpUcuq1e3ZYRZ:3Jb:P"><field name="TEXT">green</field></block></value></block></value><value name="ADD1"><block type="create_object" id="#FCIb-n,511~i0H|jCON"><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="^!YpVwfuX4~WCFPMg/kw"><field name="TEXT">white with flowers and citrus fruits</field></block></value></block></value><value name="ADD2"><block type="create_object" id="If]S8iA=k-6^n[o?yZQt"><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="2m~*7$x!YS:j?]o9M(n^"><field name="TEXT">black "Earl Grey"</field></block></value></block></value></block></value><value name="create_object_mutator_container_properties_stack_property2"><block type="text" id="@?f/H.1UXaJ9Iv2]Tca)"><field name="TEXT">ol</field></block></value></block></value><value name="ADD2"><block type="create_object" id="p`|+xw_7~#/j@V0.q=Am"><mutation><properties><item id="property" prop-name="content"></item><item id="property" prop-name="children"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="1o2ekqY5Lzy,#D@m/a40"><field name="TEXT">Water</field></block></value><value name="create_object_mutator_container_properties_stack_property1"><block type="lists_create_with" id="$3*T{vpO**.|X(*f)z8+"><mutation items="2"></mutation><value name="ADD0"><block type="create_object" id="fN()3a.HVD0aEW](2|C="><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="wJtGxK.,KCl9:E/Q/PsI"><field name="TEXT">carbonated</field></block></value></block></value><value name="ADD1"><block type="create_object" id="=03i|]_:7^jYn3GUHe,("><mutation><properties><item id="property" prop-name="content"></item></properties></mutation><value name="create_object_mutator_container_properties_stack_property0"><block type="text" id="k9-.:a{Ip,9`q)`D4Qx5"><field name="TEXT">non-carbonated</field></block></value></block></value></block></value></block></value></block>
+```
+</details>

components/bl-list-component/component.json

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+{
+  "id": "c_f95c74e56529269bdafe747715db7bbe",
+  "name": "List",
+  "description": "The List component allows the user to add a standard list to an application.",
+  "showInToolbox": true,
+  "faIcon": "list",
+  "mainJS": "dist/index.js",
+  "type": "custom",
+  "category": "Custom Components",
+  "properties": [
+    {
+      "type": "select",
+      "name": "type",
+      "label": "Type",
+      "showInSettings": true,
+      "defaultValue": "ul",
+      "hasLogicHandler": false,
+      "handlerId": "typeLogic",
+      "options": [
+        {
+          "value": "ul",
+          "label": "Unordered"
+        },
+        {
+          "value": "ol",
+          "label": "Ordered"
+        }
+      ],
+      "handlerLabel": "Type Logic",
+      "settingTooltip": "Select a list type"
+    },
+    {
+      "type": "json",
+      "name": "listItems",
+      "showInSettings": false,
+      "hasLogicHandler": true,
+      "handlerId": "listItemsLogic",
+      "handlerLabel": "List Items Logic",
+      "dataBinding": true,
+      "defaultValue": "[]",
+      "handlerDescription": "Specifies a JSON array containing data of the list items. Signature of items list: [ <Item> ]. Signature of item: { content: String, children: [ <Item> ] }."
+    },
+    {
+      "type": "color",
+      "name": "backgroundColor",
+      "label": "Background",
+      "showInSettings": true,
+      "hasLogicHandler": false,
+      "handlerId": "backgroundColorLogic",
+      "settingTooltip": "Choose a background for the list"
+    },
+    {
+      "type": "text",
+      "name": "width",
+      "label": "Width",
+      "showInSettings": true,
+      "hasLogicHandler": false,
+      "handlerId": "widthLogic",
+      "settingTooltip": "Choose the width of the list"
+    },
+    {
+      "type": "color",
+      "name": "color",
+      "label": "Color",
+      "showInSettings": true,
+      "hasLogicHandler": false,
+      "handlerId": "colorLogic",
+      "settingTooltip": "Select the text color of the list items"
+    },
+    {
+      "type": "text",
+      "name": "fontSize",
+      "label": "Font Size",
+      "showInSettings": true,
+      "hasLogicHandler": false,
+      "handlerId": "fontSizeLogic",
+      "settingTooltip": "Select the font size of the list items"
+    },
+    {
+      "type": "text",
+      "name": "padding",
+      "label": "Padding",
+      "settingTooltip": "Select the padding for list items",
+      "showInSettings": true,
+      "hasLogicHandler": false,
+      "handlerId": "paddingLogic"
+    }
+  ],
+  "eventHandlers": [
+    {
+      "name": "onClickListItem",
+      "label": "On Click List Item Event",
+      "contextBlocks": [
+        {
+          "id": "item",
+          "label": "List Item"
+        }
+      ],
+      "handlerDescription": "This event is fired when the user clicks the mouse or taps the item of the list."
+    }
+  ],
+  "actions": [],
+  "settings": [],
+  "pods": {},
+  "blockUI": "<div data-module-type=\"system\" data-module-id=\"paragraph\" data-display data-uid=\"26ee0bea5794136c571887825e151d79\"><ul><li data-display=\"\" style=\"margin-bottom:10px;\">unordered lists ( ul ) - the list items are marked with bullets</li><li data-display=\"\">ordered lists ( ol ) - the list items are marked with numbers or letters</li></ul></div>"
+}

components/bl-list-component/preview.html

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+<div data-module-type="system" data-module-id="paragraph" data-display data-uid="26ee0bea5794136c571887825e151d79"><ul><li data-display="" style="margin-bottom:10px;">unordered lists ( ul ) - the list items are marked with bullets</li><li data-display="">ordered lists ( ol ) - the list items are marked with numbers or letters</li></ul></div>

components/bl-list-component/src/index.js

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+import { useRef } from "react";
+
+import { List } from "./list";
+
+const { cn } = BackendlessUI.CSSUtils;
+
+export default function ListComponent({ component, eventHandlers }) {
+  const { classList, width, backgroundColor, type, listItems, color, fontSize, padding } = component;
+
+  const onClickHandler = (e, key) => {
+    e.stopPropagation();
+    eventHandlers.onClickListItem({ item: key });
+  };
+
+  const options = {
+    type: type && type === "ol" ? "ol" : "ul",
+    style: {
+      color,
+      fontSize,
+      padding,
+    },
+    onClickHandler: onClickHandler,
+  };
+
+  const listRef = useRef();
+
+  component.el = listRef.current;
+
+  return (
+    <div ref={listRef} className={cn("bl-customComponent-list", classList)} style={{ width, backgroundColor }}>
+      <List options={options} items={listItems} />
+    </div>
+  );
+}

components/bl-list-component/src/list.js

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+export function List({ options, items, type }) {
+  const ComponentType = type || options.type;
+
+  return (
+    <ComponentType className="list">
+      {items?.map((item, i) => (
+        <Item listItem={item} key={i} options={options} />
+      ))}
+    </ComponentType>
+  );
+}
+
+function Item(props) {
+  const { options, listItem, key } = props;
+  const { style, onClickHandler } = options;
+
+  return (
+    <li key={key} className="list__item" style={style} onClick={(e) => onClickHandler(e, listItem)}>
+      {listItem.content}
+      <List items={listItem.children} options={options} type={listItem.typeOfList} />
+    </li>
+  );
+}

components/bl-list-component/styles/index.less

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+@bl-customComponent-list-theme: @themePrimary;
+@bl-customComponent-list-themeTextColor: @appTextColor;
+
+@bl-customComponent-list-item-fontSize: 1rem;
+
+.bl-customComponent-list {
+  color: @bl-customComponent-list-themeTextColor;
+  user-select: none;
+
+  .list {
+
+    &__item {
+      font-size: @bl-customComponent-list-item-fontSize;
+      padding: @bl-customComponent-list-item-fontSize / 2;
+      line-height: 1.3;
+      cursor: pointer;
+    }
+  }
+}