Nested sidebar menu reactOn 25.10.2020 by Akinoran
While scoping out a project to rebuild the Tripping. To build this nested dropdown, it would have been relatively simple to nest unordered lists twice, iterating through options provided. However, in our React framework, we aim to build our components in an abstract way whenever possible for three main reasons:.
With these goals in mind, I wanted to anticipate any potential future use cases. That way, if we ever need a Nested Dropdown that required more than two levels of nested submenus, we could still use this same abstracted component with minimal customizations. We simply pass in the dropdown options as props into our component, based on the expected propTypes :. If any of the dropdown options has a nested submenu, it will contain its own options property, mirroring the same shape of idtextlinkand if nested another level options.
Because of the unknown number of nested options, I opted to use recursion to render the Nested Dropdown. First, the renderSubMenu function takes in options and iterates through each optionreturning an unordered list of list items. If that current option has a nested submenu, I then recursively call the renderSubMenu function with its own options props. This continues until the base case occurs — whenever the option being rendered no longer has its own nested submenu.
Theoretically, this recursive function can be called an infinite number of times, although any real-world use case would likely be capped at a maximum of three or four levels. To achieve this, I utilized state in React. Anytime a user hovers over a dropdown option, the event handler handleSelectedId will add the current option id into the array selectedIds at the corresponding array index depthLevel.
When we render each option, we attach an onMouseEnter event listener to each option that then calls the handleSelectedId upon hover, where we pass in the current option id and depthLevelincremented each time renderSubMenu is recursively called.
That way, each option is associated to the proper level it is nested within the entire dropdown. We only recursively call the renderSubMenu function if and only if the option has a nested submenu and the selectedId at the current depthLevel matches the current id.
In addition for reusability, we also want to develop with the flexibility necessary to accommodate variations in usage and styling. For example, the Nested Dropdown might have the option to show an icon next to the text. Or it might open to the left or right. Or perhaps, the font-size might change depending on which part of the site it resides.
In this particular use case, we want to allow for the presence or absence of an icon in the display — a caret that points down. To allow this variation, we simply pass in a prop hasCaret with the propType of boolean.
This allows us to utilize Nested Dropdown here with a caret, but also to reuse in a different part of the site where we might not actually want a caret icon. Lastly, we want to allow for flexibility in the direction that the menu opens. To achieve this, we again pass in a prop — openDirectioneither left or right.A powerful, responsive navigation header, the navbar.
Includes support for branding, navigation, and more. A responsive navigation header, including support for branding, navigation, and more. A simple flexible branding component. Images are supported but will likely require custom styling to work well.
Align the contents as needed with utility classes. Loose text and links can be wrapped Navbar. Text in order to correctly align it vertically. Theming the navbar has never been easier thanks to the combination of theming classes and background-color utilities.
Then, customize with the bg prop or any custom css! You can use Bootstrap's position utilities to place navbars in non-static positions. Choose from fixed to the top, fixed to the bottom, or stickied to the top scrolls with the page until it reaches the top, then stays there. Also note that. Since these positioning needs are so common for Navbars, we've added convenience props for them.
Use the expand prop as well as the Navbar. Toggle and Navbar. Collapse components to control when content collapses behind a button. Set the defaultExpanded prop to make the Navbar start expanded.
Building an Recursive Nested Dropdown Component in React
Set collapseOnSelect to make the Navbar collapse automatically when the user selects an item. You can also finely control the collapsing behavior by using the expanded and onToggle props. The breakpoint, below which, the Navbar will collapse. When true the Navbar will always be expanded regardless of screen size. Create a fixed navbar along the top or bottom of the screen, that scrolls with the page. Note: If you are manually closing the navbar using this OnSelect prop, ensure that you are setting expanded to false and not toggling between true and false.
Position the navbar at the top or bottom of the viewport, but only after scrolling past it. The general visual variant a the Navbar. Use in combination with the bg prop, background-color utilities, or your own background styles.
Change the underlying component CSS base class name and modifier class names prefix. This is an escape hatch for working with heavily customized bootstrap css.Toggle contextual overlays for displaying lists of links and more with the Bootstrap dropdown plugin. Dropdowns are toggleable, contextual overlays for displaying lists of links and more.
Like overlays, Dropdowns are built using a third-party library Popper. On the other hand, Bootstrap's dropdowns are designed to more generic and application in a variety of situations.
For this reason we don't automatically add the menu roles to the markup. We do implement some basic keyboard navigation, and if you do provide the "menu" role, react-bootstrap will do its best to ensure the focus management is compliant with the ARIA authoring guidelines for menus.
Similarly, You create a split dropdown by combining the Dropdown components with another Button and a ButtonGroup. Trigger dropdown menus above, below, left, or to the right of their toggle elements, with the drop prop. By default, a dropdown menu is aligned to the left, but you can switch it by passing the alignRight prop. For those that want to customize everything, you can forgo the included Toggle and Menu components, and create your own.
By providing custom components to the as prop, you can control how each component behaves. Custom toggle and menu components must be able to accept refs.
A convenience component for simple or general use dropdowns. Renders a Button toggle and all children are passed directly to the default Dropdown. All unknown props are passed through to the Dropdown component. Only the Button variantsize and bsPrefix props are passed to the toggle, along with menu related props are passed to the Dropdown. An html id attribute for the Toggle button, necessary for assistive technologies, such as screen readers. Change the underlying component CSS base class name and modifier class names prefix.
This is an escape hatch for working with heavily customized bootstrap css. Accessible label for the toggle; the value of title if not specified.
Allow Dropdown to flip in case of an overlapping on the reference element. For more information refer to Popper. Controls the focus behavior for when the Dropdown is opened.
Set to true to always focus the first menu item, keyboard to focus only when navigating via the keyboard, or false to disable completely. A callback fired when the Dropdown wishes to change visibility.This project is somewhat of a research experiment into the most convenient way of implementing responsive sidebars.
Basically any kind of layer that can be toggled.
Focus on what your layer should look like, and let react-laag take care of where and when to show it. Simple Context menu component for react showing all inherited parents menu with SSR compatibility.
This component provides the sliding menu only, not the hamburger button. For your button I'd suggest react-hamburger-menu. This project is a set of components for building menus with. This project works well for dropdown and autocomplete menus. This is horizontal scrolling menu component for React. Menu component has adaptive width, just set width for parent container.
A simple Dropdown Menu for React. Commonly used as a 'User Settings' menu on websites where users login. React Off-Canvas Off-canvas menus for React. React Sidebar 2. It offers the following features: Have the sidebar slide over main content Dock the sidebar on the left of.
Using Redux? Check out redux-burger-menu for easy integration of react-burger-menu into your project. Installation react-hamburger-menu requires React 0. Menu A collection of 36 posts. Hints-based aligning with custom renderers and factories.
The intricacies of nesting navigators in React Native using react-navigation
A simple React tree menu component. A fully accessible, easily themeable, React-powered menu button. A react component that displays an unlimited deep menu.
A declarative context menu for React! Navigation drawer built with the awesome react-motion. A site menu built in React. React Hamburger Button Menu. Check out the magic behind out Toggle Menu for Divi 3. It is very easy to use.Sometimes we have to build large mobile apps with a lot of menu and pages. In this Ionic 4 tutorial, we will show you how to handle the long list of the menu using an accordion or collapsible menu.
So, the long menu can be grouped by category or subcategory and so on. There will be a nested list of menu that shows up by collapsed on it. Previously, we have to show you the same multilevel accordion or collapsible menu for Ionic 3 and Angular 4. Before going to the main steps, we assume that you have to install Node.
Next, upgrade or install new Ionic 4 CLI by open the terminal or Node command line then type this command. You will get the latest Ionic CLI version 5 in your terminal or command line.
Check the version by type this command. Right now, we are using the latest Ionic CLI version 5.
Don't worry about the Angular version, we will use any version that generated with Ionic apps. Just type this command to create a new Ionic Angular apps with side menu as a default template. This Ionic Angular accordion or collapsible menu will contain the nested arrays of menu items. So, there just a few of top menu which has its derivatives. Create the new folder under the assets folder and a new file inside it. Now, we have 4 level menu based on the nested arrays of JSON objects.
The bottom level of the data contains the URL to the page that navigates from the menu. For that, we must have 16 pages as the landing page from the last child of the menu items. Additional benefits of HttpClient include testability features, typed request and response objects, request and response interception, Observable APIs, and streamlined error handling. Type this command to generate a new Ionic 4 provider.#1 Create React App Tutorial - Portfolio website with React Router v4 and Material design
Before populating any data from the Ionic service, we have to set up the Angular HttpClient module first. As you see in the previous step that we need 16 pages to handle the last child of the menu items actions.
For that, we have to create all of those pages. That command will automatically create the route for each page.Screen space is a precious commodity on mobile.
In this post, I will demystify how to build a nested multi-level drawer menu using React Native and React Navigation. Try the live demo on mobile? Navigation forms the backbone of a huge majority of apps built for production. The look and feel of navigation are important for driving use and engagement in mobile apps. React Native recommends a bunch of libraries for navigation.
None of the navigation libraries currently support nested drawers out-of-the-box. It is strongly backed and maintained by the React Native community. I had to build a playground app to showcase a UI components library for React Native. It consists of eight different components, each supporting various props, and more than 50 different options.
It was not possible to show all options inside the drawer at one time without a multi-level drawer which would scope the options based on the selected component. Make sure you have the react-navigation library installed with either yarn or npm.
React Navigation enables all navigators to do a lot of customizations by passing a navigator config as the second parameter. This potentially unlocks a lot of things that can be done by controlling what to render inside the drawer. We need to build a nested drawer for each component that we want to showcase. You can very well have your own convention, or define the object directly similar to the Home screen component. The screen mapping consists of simple objects with screen property.
The screenMapping object looks something like this:. This would render all the components along with their options. We have two main components: DataSearch and TextField. Our task is to segregate these into a list of only components DataSearch, TextField. This is exactly what is going to help us combine the options for a single component like DataSearch.
The renderMainDrawerComponent is just a function iterating over the keys of the components object. It renders custom outer drawer items built on top of simply Text and View from react-native. Check the full code here. Now, we need to show the options based on the component that is tapped. For instance, DataSearch screens start at index 1 index 0 is Home screen and ends at 3. TextField starts at 3 and end at 5.
You can check the full code here. Now, the only thing left to do is make the drawer items look cleaner by trimming the redundant component name.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. It is better to create a seperate file for your options and then import it where ever you're using this component and then pass it there as a prop.
It will be an array of objects, the first level object will be specifying the title and heading for a specific category they're optional so if you don't want to break into the categories you can skip them and only use the content property.
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