React.js Blueprint is a front-end UI toolkit. It is very optimized and popular for building interfaces that are complex data-dense for desktop applications. React.js Blueprint Popover2 component makes the content associated with a target element appear floating on the screen.
The placement concept of the Popover2 component defines the position of the Popover2. It takes these values – ‘bottom-start’, ‘bottom-end’, ‘bottom’, ‘top-start’, ‘top-end’, ‘top’, ‘left-start’, ‘left-end’, ‘left’, ‘right-start’, ‘right-end’, ‘right’, ‘auto’, ‘auto-start’ and ‘auto-end’.
Syntax:
<Popover2 placement=""/>
Prerequisite:
- Introduction and Installation ReactJS
- ReactJS Blueprint Popover2 Component
Creating React Application and Module installation:
Step 1: Create the react project folder, for that open the terminal, and write the command npm create-react-app folder name, if you have already installed create-react-app globally. If you haven’t, install create-react-app globally using the command npm -g create-react-app or install locally by npm i create-react-app.
npm create-react-app project
Step 2: After creating your project folder(i.e. project), move to it by using the following command.
cd project
Step 3: now install the dependency by using the following command:
npm install @blueprintjs/core npm install @blueprintjs/popover2
Project Structure: It will look like this:
Example 1: We are importing the Popover2 Component from “@blueprintjs/popover2” and the Button Component from “@blueprintjs/core”. To apply the default styles of the components we are importing “@blueprintjs/core/lib/css/blueprint.css”.
To the Popover2 Component in the content, we have created a div with some inline styling and the text “Welcome to Geeksforneveropen !”. Now to the Popover2 component, we are passing different values to the placement prop.
App.js
Javascript
import { Button } from "@blueprintjs/core"; import { Popover2 } from "@blueprintjs/popover2"; import "@blueprintjs/core/lib/css/blueprint.css"; function App() { return ( <div className="App"> <h3> React Blueprint Popover2 Placement</h3> <div style={{ textAlign: "center" }}> <Popover2 placement="top-start" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="top-start" /> )} /> <Popover2 placement="top" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="top" /> )} /> <Popover2 placement="top-end" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="top-end" /> )} /> <br /> <Popover2 placement="right-start" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="right-start" /> )} /> <Popover2 placement="right" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="right" /> )} /> <Popover2 placement="right-end" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="right-end" /> )} /> <br /> <Popover2 placement="left-start" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="left-start" /> )} /> <Popover2 placement="left" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="left" /> )} /> <Popover2 placement="left-end" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="left-end" /> )} /> <br /> <Popover2 placement="bottom-start" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="bottom-start" /> )} /> <Popover2 placement="bottom" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="bottom" /> )} /> <Popover2 placement="bottom-end" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="bottom-end" /> )} /> </div> </div> ); } export default App; |
Step to Run Application: Run the application using the following command from the project’s root directory.
npm start
Output:
Example 2: We are passing values like ‘auto-start’, ‘auto’ and ‘auto-end’ to the placement prop.
App.js
Javascript
import { Button } from "@blueprintjs/core"; import { Popover2 } from "@blueprintjs/popover2"; import "@blueprintjs/core/lib/css/blueprint.css"; function App() { return ( <div className="App"> <h3> React Blueprint Popover2 Placement</h3> <div style={{ textAlign: "center" }}> <Popover2 placement="auto-end" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="auto-end" /> )} /> <Popover2 placement="auto" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="auto" /> )} /> <Popover2 placement="auto-start" content={ <div style={{ backgroundColor: "white", padding: "30px" }}> <h4> Welcome to{" "} <span style={{ color: "green" }}> Geeksforneveropen </span>! </h4> </div> } renderTarget={({ isOpen, ref, ...targetProps }) => ( <Button {...targetProps} elementRef={ref} text="auto-start" /> )} /> </div> </div> ); } export default App; |
Step to Run Application: Run the application using the following command from the project’s root directory.
npm start
Output:
Reference: https://blueprintjs.com/docs/#popover2-package/popover2.placement
