ng2-bs3-modal

Angular2 Bootstrap3 Modal Component

Demo

http://dougludlow.github.io/ng2-bs3-modal/

Prerequisites

If you're using Typescript in your project, ng2-bs3-modal requires Typescript v2.0.0 or greater. Also make sure that your editor (Visual Studio Code, Atom, Webstorm, etc.) supports Typescript >= v2.0.0 or you'll see errors even though it compiles.

Dependencies

ng2-bs3-modal depends on bootstrap which depends on jquery, you'll need to include both scripts before ng2-bs3-modal or somehow make them available globally, depending on your build system.

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.0/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.js"></script>

Install

npm install --save ng2-bs3-modal

Then include the ng2-bs3-modal in your project.

Using SystemJS, you can add a mapping to your System.config:

System.config({
    defaultJSExtensions: true,
    map: {
        'ng2-bs3-modal': 'node_modules/ng2-bs3-modal'
    }
});

Or you can include a reference to the bundle in your html:

<script src="node_modules/ng2-bs3-modal/bundles/ng2-bs3-modal.js"></script>

Then include the module in the imports collection of your app's module:

import { NgModule } from '@angular/core';
import { Ng2Bs3ModalModule } from 'ng2-bs3-modal/ng2-bs3-modal';

@NgModule({
    imports: [ Ng2Bs3ModalModule ]
    ...
})
export class MyAppModule { }

Example Projects

The following is a list of basic demo projects that use the ng2-bs3-modal:

• npm
• SystemJS
• jspm
• angular-cli
• webpack

Feel free to request more.

API

ModalComponent

Inputs

• animation: boolean, default: true

  Specify false to simply show the modal rather than having it fade in/out of view.

• backdrop: string | boolean, default: true

  Specify 'static' for a backdrop which doesn't close the modal on click or false for no backdrop.

• keyboard: boolean, default: true

  Closes the modal when escape key is pressed. Specify false to disable.

• size: string, default: undefined

  Specify 'sm' for small and 'lg' for large.

• cssClass: string, default: undefined

  Applies the given class to the modal. Can be used to styles the modal; for example, giving it a custom size.

Outputs

• onClose: EventEmitter

  Emits when ModalComponent.close() is called.

• onDismiss: EventEmitter

  Emits when ModalComponent.dismiss() is called, or when the modal is dismissed with the keyboard or backdrop.

• onOpen: EventEmitter

  Emits when ModalComponent.open() is called.

Methods

• open(size?: string): Promise

  Opens the modal. Size is optional. Specify 'sm' for small and 'lg' for large to override size. Returns a promise that resolves when the modal is completely shown.

• close(value?: any): Promise<any>

  Closes the modal. Causes onClose to be emitted. Returns a promise that resolves the value passed to close when the modal is completely hidden.

• dismiss(): Promise

  Dismisses the modal. Causes onDismiss to be emitted. Returns a promise that resolves when the modal is completely hidden.

ModalHeaderComponent

Inputs

• show-close: boolean, default: false

  Show or hide the close button in the header. Specify true to show.

ModalFooterComponent

Inputs

• show-default-buttons: boolean, default: false

  Show or hide the default 'Close' and 'Dismiss' buttons in the footer. Specify true to show.

• close-button-label: string, default: 'Close'

  Change the label in the default 'Close' button in the footer. Has no effect if show-default-buttons aren't set.

• dismiss-button-label: string, default: 'Dismiss'

  Change the label in the default 'Dismiss' button in the footer. Has no effect if show-default-buttons aren't set.

Example Usage

Default modal

<button type="button" class="btn btn-default" (click)="modal.open()">Open me!</button>

<modal #modal>
    <modal-header [show-close]="true">
        <h4 class="modal-title">I'm a modal!</h4>
    </modal-header>
    <modal-body>
        Hello World!
    </modal-body>
    <modal-footer [show-default-buttons]="true"></modal-footer>
</modal>

Static modal

This will create a modal that cannot be closed with the escape key or by clicking outside of the modal.

<modal #modal [keyboard]="false" [backdrop]="'static'">
    <modal-header [show-close]="false">
        <h4 class="modal-title">I'm a modal!</h4>
    </modal-header>
    <modal-body>
        Hello World!
    </modal-body>
    <modal-footer [show-default-buttons]="true"></modal-footer>
</modal>

Use custom buttons in footer

<modal #modal>
    <modal-header>
        <h4 class="modal-title">I'm a modal!</h4>
    </modal-header>
    <modal-body>
        Hello World!
    </modal-body>
    <modal-footer>
        <button type="button" class="btn btn-default" data-dismiss="modal" (click)="modal.dismiss()">Cancel</button>
        <button type="button" class="btn btn-primary" (click)="modal.close()">Ok</button>
    </modal-footer>
</modal>

Opening and closing the modal from a parent component

import { Component, ViewChild } from '@angular/core';
import { ModalComponent } from 'ng2-bs3-modal/ng2-bs3-modal';

@Component({
    selector: 'parent-component',
    template: `
        <modal #myModal>
            ...
        </modal>
    `
})
export class ParentComponent {
    @ViewChild('myModal')
    modal: ModalComponent;

    close() {
        this.modal.close();
    }
    
    open() {
        this.modal.open();
    }
}

Opening the modal when the parent component loads

import { Component, ViewChild, AfterViewInit } from '@angular/core';
import { ModalComponent } from 'ng2-bs3-modal/ng2-bs3-modal';

@Component({
    selector: 'parent-component',
    template: `
        <modal #myModal>
            ...
        </modal>
    `
})
export class ParentComponent implements AfterViewInit {
    @ViewChild('myModal')
    modal: ModalComponent;

    ngAfterViewInit() {
        this.modal.open();
    }
}

Note: ViewChild doesn't resolve the modal property until AfterViewInit. OnInit is too early and will result in an "undefined" error.

Multiple modals in a component

import { Component, ViewChild } from '@angular/core';
import { ModalComponent } from 'ng2-bs3-modal/ng2-bs3-modal';

@Component({
    selector: 'parent-component',
    template: `
        <modal #myFirstModal>
            ...
        </modal>
        <modal #mySecondModal>
            ...
        </modal>
    `
})
export class ParentComponent {
    @ViewChild('myFirstModal')
    modal1: ModalComponent;
    
    @ViewChild('mySecondModal')
    modal2: ModalComponent;
    
    ...
}

Modal with a custom size

import { Component, ViewChild } from '@angular/core';
import { ModalComponent } from 'ng2-bs3-modal/ng2-bs3-modal';

@Component({
    selector: 'parent-component',
    styles: ['>>> .modal-xl { width: 1100px; }'],
    template: `
        <modal cssClass="modal-xl" #modal>
            ...
        </modal>
    `
})
export class ParentComponent {
    ...
}

Note: Angular2 emulates the shadow dom by prefixing component styles with a unique identifier. Because the modal is attached to the body tag, it doesn't pick up these styles. You will need to add the /deep/ or >>> selector in order for the style to take effect. See Component Styles.

Modal in NgFor

import { Component, ViewChildren } from '@angular/core';
import { ModalComponent } from 'ng2-bs3-modal/ng2-bs3-modal';

@Component({
    selector: 'parent-component',
    template: `
        <button type="button" class="btn btn-default" (click)="modal.open()">Open me!</button>
        <div *ngFor="let item in items; trackBy: item.id">
            <modal #modal>
                ...
            </modal>
        </div>
    `
})
export class ParentComponent {
    @ViewChildren(ModalComponent)
    modals: QueryList<ModalComponent>; // How to access a collection of modals
    ...
}

Note: If you are updating items asynchronously, make sure you are using trackBy in the ngFor directive so that Angular doesn't teardown and redraw the elements each time the collection is changed. See NgFor Directive for more details.

Modal with validation

<modal #validationModal>
    <form #modalForm="ngForm">
        <modal-header [show-close]="true">
            <h4 class="modal-title">I'm a modal!</h4>
        </modal-header>
        <modal-body>
            <div class="form-group">
                <label for="firstName">First Name</label>
                <input type="text" class="form-control" required [(ngModel)]="firstName" name="firstName" id="firstName">
            </div>
            <div class="form-group">
                <label for="lastName">Last Name</label>
                <input type="text" class="form-control" required [(ngModel)]="lastName" name="lastName" id="lastName">
            </div>
        </modal-body>
        <modal-footer>
            <button type="button" class="btn btn-default" data-dismiss="modal" (click)="validationModal.dismiss()">Cancel</button>
            <button type="button" class="btn btn-primary" [disabled]="!modalForm.valid" (click)="validationModal.close()">Save</button>
        </modal-footer>
    </form>
</modal>

Autofocus on a textbox when modal is opened

<modal #modal>
    <modal-header>
        <h4 class="modal-title">I'm a modal!</h4>
    </modal-header>
    <modal-body>
        <div class="form-group">
            <label for="textbox">I'm a textbox!</label>
            <input autofocus type="text" class="form-control" id="textbox">
        </div>        
    </modal-body>
    <modal-footer [show-default-buttons]="true"></modal-footer>
</modal>

Building

git clone https://github.com/dougludlow/ng2-bs3-modal.git
npm install
npm run build

Running

npm start

Navigate to http://127.0.0.1:8080 in your browser.

Testing

npm test

To have karma to watch for changes:

npm run test:w

Bugs/Contributions

Report all bugs and feature requests on the issue tracker.

Contributions are welcome! Feel free to open a pull request.