ng2-completer

Auto complete component for Angular 2.

This component is based on angucomplete-alt

Click for demo or plunk

Help needed

I don't use this library much anymore and don't have time to properly maintain it. If you are currently using ng2-completer and interested to maintain it please let me know!

Installation

npm install ng2-completer --save

Usage

The module you want to use ng2-completer in must import Ng2CompleterModule and FormsModule (to use the ngModel directive on ng2-completer). Ng2CompleterModule provides the CompleterService, and declares the ng2-completer directive.

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from "@angular/forms";
import { HttpClientModule } from "@angular/common/http";
import { AppComponent } from './app.component';
import { Ng2CompleterModule } from "ng2-completer";


@NgModule({
  imports: [
      BrowserModule,
      FormsModule,
      HttpClientModule,
      Ng2CompleterModule,
  ],
  declarations: [ AppComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule { }

Add ng2-completer to your component and create a data source:

import { Component } from '@angular/core';
import { CompleterService, CompleterData } from 'ng2-completer';

@Component({
  selector: 'my-component',
  template: `<h1>Search color</h1>
            <ng2-completer [(ngModel)]="searchStr" [datasource]="dataService" [minSearchLength]="0"></ng2-completer>
            <h1>Search captain</h1>
            <ng2-completer [(ngModel)]="captain" [datasource]="captains" [minSearchLength]="0"></ng2-completer>`
})
export class MyComponent {

  protected searchStr: string;
  protected captain: string;
  protected dataService: CompleterData;
  protected searchData = [
    { color: 'red', value: '#f00' },
    { color: 'green', value: '#0f0' },
    { color: 'blue', value: '#00f' },
    { color: 'cyan', value: '#0ff' },
    { color: 'magenta', value: '#f0f' },
    { color: 'yellow', value: '#ff0' },
    { color: 'black', value: '#000' }
  ];
  protected captains = ['James T. Kirk', 'Benjamin Sisko', 'Jean-Luc Picard', 'Spock', 'Jonathan Archer', 'Hikaru Sulu', 'Christopher Pike', 'Rachel Garrett' ];

  constructor(private completerService: CompleterService) {
    this.dataService = completerService.local(this.searchData, 'color', 'color');
  }
}

ng2-completer uses rxjs stream as data sources. There are 2 ready made data sources that can be used to fetch local and remote data but it's also possible to provide a custom source that generates a stream of items.

System.js configuration

Add the following to System.js map configuration:

   var map = {
       ...
       'ng2-completer': 'node_modules/ng2-completer/ng2-completer.umd.js'
   }

API

ng2-completer component

|Attribute|Description|Type|Required|Default| |:--- |:--- |:--- |:--- |:--- | |datasource|Autocomplete list data source can be an array of strings or a URL that results in an array of strings or a CompleterData object|Array<string>|string|CompleterData|Yes|| |dataService|Deprecated use datasource instead. Autocomplete list data source.|CompleterData|Yes|| |ngModel| see the angular forms API.|string|Yes|| |autoMatch|Auto select an item if it is the only result and it is an exact match of the search text.|boolean|No|false |autofocus|Set input focus when the page loads|boolean|No|false |clearUnselected|Clear the input on blur if not selected.|boolean|No|false| |clearSelected|Clear the input when a result is selected.|boolean|No|false| |disableInput|If true disable the input field.|boolean|No|false| |fieldTabindex|Set the tabIndex of the input.|number|No|| |initialValue|Initial value for the component. Value is parsed using: titleField, descriptionField and imageField and used as selected value|any|No|| |inputId|id attribute of the input element.|string|No|| |inputName|name attribute of the input element.|string|No|| |inputClass| class attribute of the input element.|string|No|| |matchClass|CSS class to apply for matching part of the title and description.|string|No|| |maxChars|Maximal number of characters that the user can type in the component.|number|No|524288| |minSearchLength|Minimal number of characters required for searching.|number|No|3| |overrideSuggested|If true will override suggested and set the model with the value in the input field.|boolean|No|false| |openOnFocus|If true will open the dropdown and perform search when the input gets the focus.|boolean|No|false| |openOnClick|If true will open and close the dropdown by click.|boolean|No|false| |selectOnFocus|If true will select the input text upon focus.|boolean|No|false| |selectOnClick|If true will select the input text by click.|boolean|No|false| |fillHighlighted|If true will set the model with the value in the input field when item is highlighted.|boolean|No|true| |pause|Number of msec. to wait before searching.|number|No|250| |placeholder|Placeholder text for the search field.|string|No|| |textNoResults|Text displayed when the search returned no results. if the string is falsy it won't be displayed|string|No| |textSearching|Text displayed while search is active. if the string is falsy it won't be displayed|string|No|Searching...| |autoHighlight|Automatically highlight the best matching search result when the input changes. the "best match" is selected by: exact match, starts with and finally includes|boolean|No|false|

ng2-completer events

|Name|Description|Type| |:--- |:--- |:--- | |selected|emitted when an item is selected.|(selected: CompleterItem): void| |highlighted|emitted when an item is highlighted.|(highlighted: CompleterItem): void| |focus|emitted when the input gets focus|(): void| |blur|emitted when the input looses focus|(): void| |opened|emitted when the dropdown is opened or closed|(isOpen: boolean): void| |keyup|emitted when the input emits keyup|(event: any): void| |keydown|emitted when the input emits keydown|(event: any): void|

ng2-completer methods

|Method|Description|Parameters| |:--- |:--- |:--- | |open()|Open the dropdown| | |close()|Close the dropdown| | |focus()|Set the focus to the completer input| | |blur()|Remove the focus from the completer input| | |isOpen()|Returns the state of the dropdown| |

Local data

Create local data provider by calling CompleterService.local.

Parameters

|Name|Type|Description|Required| |:---|:---|:--- |:--- | |data|any[] | Observable<any[]>|A JSON array with the data to use or an Observable that emits one|Yes| |searchFields|string|Comma separated list of fields to search on. Fields may contain dots for nested attributes; if empty or null all data will be returned.|Yes| |titleField|string|Name of the field to use as title for the list item.|Yes|

Attributes

|Name|Type|Description| |:---|:---|:--- | |descriptionField|string|Name of the field to use as description for the list item.| |imageField|string|Name of the field to use as image url for the list item.|

Remote data

Create remote data provider by calling CompleterService.remote.

Parameters

|Name|Type|Description|Required| |:---|:---|:--- |:--- | |url|string|Base url for the search|Yes| |searchFields|string|Comma separated list of fields to search on. Fields may contain dots for nested attributes; if empty or null all data will be returned.|Yes| |titleField|string|Name of the field to use as title for the list item.|Yes|

Attributes

|Name|Type|Description| |:---|:---|:--- | |descriptionField|string|Name of the field to use as description for the list item.| |imageField|string|Name of the field to use as image url for the list item.| |urlFormater|(term: string) => string|Function that get's the searchterm and returns the search url before each search.| |dataField|string|The field in the response that includes the data.| |requestOptions|RequestOptions (@angular/common/http)|HTTP request options that should be sent with the search request.|

CSS classes

• .completer-holder
• .completer-input
• .completer-dropdown-holder
• .completer-dropdown
• .completer-searching
• .completer-no-results
• .completer-row
• .completer-image-holder
• .completer-image
• .completer-image-default
• .completer-title
• .completer-description
• .completer-list-item-holder
• .completer-list-item
• .completer-selected-row

Credits

• This product uses the TMDb API but is not endorsed or certified by TMDb