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medium-editor-webpack

v0.2.0

Published

Medium.com WYSIWYG editor clone.

Downloads

14

Readme

MediumEditor

Join the chat at https://gitter.im/daviferreira/medium-editor

This is a clone of medium.com inline editor toolbar.

MediumEditor has been written using vanilla JavaScript, no additional frameworks required.

Browser Support

Sauce Test Status

Firefox | Chrome | IE | Safari --- | --- | --- | --- | --- | Latest ✔ | Latest ✔ | IE 9+ ✔ | Latest ✔ |

NPM info

Travis build status dependencies devDependency Status Coverage Status

Basic usage

screenshot

demo: http://daviferreira.github.io/medium-editor/

Installation

Via bower:

Run in your console: bower install medium-editor

Manual installation:

Download the latest release and attach medium editor's stylesheets to your page:

<link rel="stylesheet" href="css/medium-editor.css"> <!-- Core -->
<link rel="stylesheet" href="css/themes/default.css"> <!-- or any other theme -->

The next step is to reference the editor's script

<script src="js/medium-editor.js"></script>

Usage

You can now instantiate a new MediumEditor object:

<script>var editor = new MediumEditor('.editable');</script>

The above code will transform all the elements with the .editable class into HTML5 editable contents and add the medium editor toolbar to them.

You can also pass a list of HTML elements:

var elements = document.querySelectorAll('.editable'),
    editor = new MediumEditor(elements);

MediumEditor also supports textarea. If you provide a textarea element, the script will create a new div with contentEditable=true, hide the textarea and link the textarea value to the div HTML content.

Initialization options

Core options

  • allowMultiParagraphSelection: enables the toolbar when selecting multiple paragraphs/block elements. Default: true
  • cleanPastedHTML: cleans pasted content from different sources, like google docs etc. Default: false
  • delay: time in milliseconds to show the toolbar or anchor tag preview. Default: 0
  • disableAnchorPreview: enables/disables the anchor preview element, which appears when hovering links and allows the user to edit the link when clicking. If toolbar is diabled (via disableToolbar or data-disable-toolbar attribute) the anchor preview is always disabled so this option will be ignored. Default: false
  • disableReturn: enables/disables the use of the return-key. You can also set specific element behavior by using setting a data-disable-return attribute. Default: false
  • disableDoubleReturn: allows/disallows two (or more) empty new lines. You can also set specific element behavior by using setting a data-disable-double-return attribute. Default: false
  • disableEditing: enables/disables adding the contenteditable behavior. Useful for using the toolbar with customized buttons/actions. You can also set specific element behavior by using setting a data-disable-editing attribute. Default: false
  • disablePlaceholders: enables/disables support for placeholder, including DOM element creation and attaching event handlers. When disabled, medium-editor will ignore the placeholder option and not show placeholder text. Default: false
  • elementsContainer: specifies a DOM node to contain MediumEditor's toolbar and anchor preview elements. Default: document.body
  • extensions: extension to use (see Custom Buttons and Extensions) for more. Default: {}
  • firstHeader: HTML tag to be used as first header. Default: h3
  • forcePlainText: Forces pasting as plain text. Default: true
  • imageDragging: Allows image drag and drop into the editor. Default: true
  • placeholder: Defines the default placeholder for empty contenteditables when disablePlaceholders is not set to true. You can overwrite it by setting a data-placeholder attribute on your elements. Default: 'Type your text'
  • secondHeader: HTML tag to be used as second header. Default: h4
  • standardizeSelectionStart: Standardizes how the beginning of a range is decided between browsers whenever the selected text is analyzed for updating toolbar buttons status

Toolbar options

  • activeButtonClass: CSS class added to active buttons in the toolbar. Default: 'medium-editor-button-active'
  • buttons: the set of buttons to display on the toolbar. Default: ['bold', 'italic', 'underline', 'anchor', 'header1', 'header2', 'quote']
  • buttonLabels: type of labels on the buttons. Values: 'fontawesome', {'bold': '<b>b</b>', 'italic': '<i>i</i>'}. Default: false
  • diffLeft: value in pixels to be added to the X axis positioning of the toolbar. Default: 0
  • diffTop: value in pixels to be added to the Y axis positioning of the toolbar. Default: -10
  • disableToolbar: enables/disables the toolbar, adding only the contenteditable behavior. You can also set specific element behavior by using setting a data-disable-toolbar attribute. Default: false
  • firstButtonClass: CSS class added to the first button in the toolbar. Default: 'medium-editor-button-first'
  • lastButtonClass: CSS class added to the last button in the toolbar. Default: 'medium-editor-button-last'
  • onShowToolbar: optional callback that will be called each time the toolbar is actually shown for this instance of medium-editor.
  • onHideToolbar: optional callback that will be called each time the toolbar is actually hidden for this instance of medium-editor.
  • staticToolbar: enable/disable the toolbar always displaying in the same location relative to the medium-editor element. Default: false
  • stickyToolbar: enable/disable the toolbar "sticking" to the medium-editor element when the page is being scrolled. Default: false
  • toolbarAlign: left|center|right - when using the staticToolbar option, this aligns the static toolbar relative to the medium-editor element. Default: center
  • updateOnEmptySelection: update the state of the toolbar buttons even when the selection is collapse (there is no selection, just a cursor). Default: false

Anchor form options

  • anchorButton: enables/disables displaying a checkbox for whether the user wants the link to be displayed as a "button". If checkbox is checked, the created link will have anchorButtonClass added to the class list. Default: false
  • anchorButtonClass: class to add to anchor tags, when anchorButton is set to true. Default: btn
  • anchorTarget: enables/disables displaying a "Open in new window" checkbox, which when checked changes the target attribute of the created link. Default: false
  • anchorInputCheckboxLabel: text to be shown in the checkbox enabled via the anchorTarget option. Default: Open in new window
  • anchorInputPlaceholder: text to be shown as placeholder of the anchor input. Default: Paste or type a link
  • anchorPreviewHideDelay: time in milliseconds to show the anchor tag preview after the mouse has left the anchor tag. Default: 500
  • checkLinkFormat: enables/disables check for common URL protocols on anchor links. Default: false
  • targetBlank: enables/disables target="_blank" for anchor tags. Default: false

Example:

var editor = new MediumEditor('.editable', {
    anchorInputPlaceholder: 'Type a link',
    buttons: ['bold', 'italic', 'quote'],
    diffLeft: 25,
    diffTop: 10,
    firstHeader: 'h1',
    secondHeader: 'h2',
    delay: 1000,
    targetBlank: true
});

Extra buttons

Medium Editor, by default, will show only the buttons listed above to avoid a huge toolbar. There are a couple of extra buttons you can use:

  • superscript
  • subscript
  • strikethrough
  • unorderedlist
  • orderedlist
  • pre
  • justifyLeft
  • justifyFull
  • justifyCenter
  • justifyRight
  • image (this simply converts selected text to an image tag)
  • indent (moves the selected text up one level)
  • outdent (moves the selected text down one level)
  • removeFormat (clears inline style formatting, preserves blocks)

Themes

Check out the Wiki page for a list of available themes: https://github.com/daviferreira/medium-editor/wiki/Themes

API

Core Methods

  • .destroy(): tears down the editor if already setup, removing all DOM elements and event handlers
  • .setup(): rebuilds the editor if it has already been destroyed, recreating DOM elements and attaching event handlers
  • .serialize(): returns a JSON object with elements contents
  • .execAction(action, opts): executes an built-in action via document.execCommand
  • .createLink(opts): creates a link via the native document.execCommand('createLink') command
  • .subscribe(event, listener): attaches a listener to a custom medium-editor event
  • .saveSelection(): internally store the set of selected text
  • .restoreSelection(): restore the selection to what was selected when saveSelection() was called
  • .selectAllContents(): expands the selection to contain all text within the focused contenteditable
  • .stopSelectionUpdates(): stop the toolbar from updating to reflect the state of the selected text
  • .startSelectionUpdates(): put the toolbar back into its normal updating state
  • .cleanPaste(text): convert text to plaintext and replace current selection with result
  • .pasteHTML(html, options): replace the current selection with html

Helper Methods

  • .on(target, event, listener, useCapture): attach a listener to a DOM event which will be detached when MediumEditor is deactivated
  • .off(target, event, listener, useCapture): detach a listener to a DOM even that was attached via on()
  • .delay(fn): delay any function from being executed by the amount of time passed as the delay option
  • .getSelectionParentElement(range): get the parent contenteditable element that contains the current selection
  • .getExtensionByName(name): get a reference to an extension with the specified name

Capturing DOM changes

For observing any changes on contentEditable

$('.editable').on('input', function() {
  // Do some work
});

This is handy when you need to capture modifications to the contenteditable element that occur outside of key up's scope (like clicking on toolbar buttons).

input is supported by Chrome, Firefox, IE9 and other modern browsers. If you want to read more or support older browsers, check Listening to events of a contenteditable HTML element and Detect changes in the DOM

Extensions & Plugins

Check the documentation in order to learn how to develop extensions for MediumEditor.

A list of existing extensions and plugins, such as Images and Media embeds, Tables and Markdown can be found here.

Development

MediumEditor development tasks are managed by Grunt. To install all the necessary packages, just invoke:

npm install

These are the available grunt tasks:

  • js: runs jslint and jasmine tests and creates minified and concatenated versions of the script;
  • css: runs autoprefixer and csslint
  • test: runs jasmine tests, jslint and csslint
  • watch: watch for modifications on script/scss files

The source files are located inside the src directory.

Contributing

Kill some bugs :)

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Test your changes to the best of your ability.
  4. Update the documentation to reflect your changes if they add or changes current functionality.
  5. Commit your changes (git commit -am 'Added some feature')
  6. Push to the branch (git push origin my-new-feature)
  7. Create new Pull Request

Contributors

https://github.com/daviferreira/medium-editor/graphs/contributors

License

MIT: https://github.com/daviferreira/medium-editor/blob/master/LICENSE