Accessibility in Angular RichTextEditor component

24 May 2022 / 2 minutes to read

The Rich Text Editor component has been designed, keeping in mind the WAI-ARIA specifications and applies the WAI-ARIA roles, states and properties. This component is characterized by complete ARIA accessibility support that makes it easy for people who use assistive technologies (AT) or those who completely rely on keyboard navigation.

ARIA attributes

The toolbar of Rich Text Editor, assigned the role of ‘Toolbar’ and has the following list of aria attribute.

Property	Functionalities
role=“toolbar”	This attribute added to the ToolBar element describes the actual role of the element.
aria-orientation	Indicates the ToolBar orientation. Default value is `horizontal`.
aria-haspopup	Indicates the popup mode of the Toolbar. Default value is false. When popup mode is enabled, attribute value has to be changed to `true`.
aria-disabled	Indicates the disabled state of the ToolBar.

For further details of Toolbar ARIA attributes, please look in to Accessibility of Toolbar documentation.

The Rich Text Editor element is assigned the role of application.

Property	Functionalities
role=“application”	This attribute added to the Rich Text Editor element describes the actual role of the element.
aria-disabled	Indicates the disabled state of the ToolBar.

Source

Preview

app.component.ts

app.module.ts

main.ts

index.html

import { Component } from '@angular/core';
import { ToolbarService, LinkService, ImageService, HtmlEditorService} from '@syncfusion/ej2-angular-richtexteditor';
@Component({
selector: 'app-root',
template:`<ejs-richtexteditor #defaultRTE id='defaultRTE' [toolbarSettings]='tools'></ejs-richtexteditor>`,
providers: [ToolbarService, LinkService, ImageService, HtmlEditorService]
})
export class AppComponent  {
    public tools = {
        items: ['Bold', 'Italic', 'Underline', 'StrikeThrough',
    'FontName', 'FontSize', 'FontColor', 'BackgroundColor',
    'LowerCase', 'UpperCase', '|',
    'Formats', 'Alignments', 'OrderedList', 'UnorderedList',
    'Outdent', 'Indent', '|',
    'CreateLink', 'Image', '|', 'ClearFormat', 'Print',
    'SourceCode', 'FullScreen', '|', 'Undo', 'Redo']
    };
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RichTextEditorAllModule } from '@syncfusion/ej2-angular-richtexteditor';
import { AppComponent } from './app.component';
import { DialogModule } from '@syncfusion/ej2-angular-popups';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        RichTextEditorAllModule,
        DialogModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion Angular Rich Text Editor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-navigations/styles/material.css" rel="stylesheet" />
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.9.0/zone.min.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/0.3.19/marked.js" type="text/javascript"></script>
    <script src="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/codemirror.js" type="text/javascript"></script>
    <script src="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/javascript.js" type="text/javascript"></script>
    <script src="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/css.js" type="text/javascript"></script>
    <script src="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/xml.js" type="text/javascript"></script>
    <script src="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/htmlmixed.js" type="text/javascript"></script>
    <link href="https://jsplayground.syncfusion.com/16.1.0.24/scripts/web/codemirror/codemirror.min.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
    <style>
    #loader {
        color: #008cff;
        font-family:  'Helvetica Neue','calibiri';
        font-size: 16px;
        height: 40px;
        left: 45%;
        position: absolute;
        top: 45%;
        width: 30%;
    }
     .e-code-mirror::before {
        content: '\e345';
    }
    .CodeMirror-linenumber,
    .CodeMirror-gutters {
        display: none;
    }

    #special_char,
    .char_block {
        display: inline-block;
    }
    .char_block.e-active {
        /* box-shadow: inset 3px 3px 7px 0px; */
        outline: 1.5px solid;
    }

    .char_block {
        width: 30px;
        height: 30px;
        line-height: 30px;
        margin: 0 5px 5px 0;
        text-align: center;
        vertical-align: middle;
        border: 1px solid #DDDDDD;
        font-size: 20px;
        cursor: pointer;
        user-select: none;
    }

    #custom_tbar,
    #custom_tbar div{
        cursor: pointer;
    }


    #rteSection {
        height: 500px;
    }
  .e-rte-quick-popup .e-rte-quick-toolbar .e-roatate-left::before {
        content: "\e76e";
    }

    .e-rte-quick-popup .e-rte-quick-toolbar .e-roatate-right::before {
        content: "\e726";
    }

    .e-richtexteditor textarea.e-content {
      float: left;
    }
    .e-richtexteditor .e-rte-content {
      overflow: hidden;
    }
    .e-rte-content .e-content.e-pre-source{
      width: 100%;
    }

    .property-panel-content td{
        width: 50%;
    }
    .property-panel-content td div {
        padding-left: 10px;
        padding-top: 10px;
    }

    .e-icon-btn.e-active .e-md-preview::before {
        content: '\e350';
    }

	.e-icon-btn .e-md-preview.e-icons::before {
		content: '\e345';
	}
    .e-icon-btn.e-active .e-md-preview::before,
    #mdCustom .e-icon-btn.e-active .e-md-preview.e-icons::before {
		content: '\e350';
	}
	#mdCustom .e-icon-btn .e-md-preview.e-icons::before {
		content: '\e345';
    }

    #rteDialog.e-dialog .e-dlg-content {
        padding: 0px 0px 5px 16px;
    }
    #custom_tbar .e-tbar-btn-text {
        font-size: 16px;
    }
    .e-bigger #custom_tbar .e-tbar-btn-text {
        font-size: 18px;
    }

    @media (min-width: 320px) and (max-width: 480px) {
        .fabric.e-bigger #rteDialog {
            min-width: 281px;
        }

        .fabric #rteDialog {
            min-width: 241px;
        }

        .bootstrap.e-bigger #rteDialog,
        .bootstrap #rteDialog {
            min-width: 223px;
        }

        .highcontrast.e-bigger #rteDialog {
            min-width: 283px;
        }
        .highcontrast #rteDialog {
            min-width: 243px;
        }
        .material #rteDialog {
            min-width: 224px;
        }
        .material.e-bigger #rteDialog {
            min-width: 236px;
        }
    }

</style>
</head>

<body>
    <app-root>
        <div id='loader'>Loading....</div>
    </app-root>
</body>

</html>

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