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plugin.js
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plugin.js
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/**
* @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
'use strict';
( function() {
var template = '<img alt="" src="" />',
templateBlock = new CKEDITOR.template(
'<figure class="{captionedClass}">' +
template +
'<figcaption>{captionPlaceholder}</figcaption>' +
'</figure>' ),
alignmentsObj = { left: 0, center: 1, right: 2 },
regexPercent = /^\s*(\d+\%)\s*$/i;
CKEDITOR.plugins.add( 'image2', {
// jscs:disable maximumLineLength
lang: 'af,ar,az,bg,bn,bs,ca,cs,cy,da,de,de-ch,el,en,en-au,en-ca,en-gb,eo,es,es-mx,et,eu,fa,fi,fo,fr,fr-ca,gl,gu,he,hi,hr,hu,id,is,it,ja,ka,km,ko,ku,lt,lv,mk,mn,ms,nb,nl,no,oc,pl,pt,pt-br,ro,ru,si,sk,sl,sq,sr,sr-latn,sv,th,tr,tt,ug,uk,vi,zh,zh-cn', // %REMOVE_LINE_CORE%
// jscs:enable maximumLineLength
requires: 'widget,dialog',
icons: 'image',
hidpi: true,
onLoad: function() {
CKEDITOR.addCss(
'.cke_image_nocaption{' +
// This is to remove unwanted space so resize
// wrapper is displayed property.
'line-height:0' +
'}' +
'.cke_editable.cke_image_sw, .cke_editable.cke_image_sw *{cursor:sw-resize !important}' +
'.cke_editable.cke_image_se, .cke_editable.cke_image_se *{cursor:se-resize !important}' +
'.cke_image_resizer{' +
'display:none;' +
'position:absolute;' +
'width:10px;' +
'height:10px;' +
'bottom:-5px;' +
'right:-5px;' +
'background:#000;' +
'outline:1px solid #fff;' +
// Prevent drag handler from being misplaced (https://dev.ckeditor.com/ticket/11207).
'line-height:0;' +
'cursor:se-resize;' +
'}' +
'.cke_image_resizer_wrapper{' +
'position:relative;' +
'display:inline-block;' +
'line-height:0;' +
'}' +
// Bottom-left corner style of the resizer.
'.cke_image_resizer.cke_image_resizer_left{' +
'right:auto;' +
'left:-5px;' +
'cursor:sw-resize;' +
'}' +
'.cke_widget_wrapper:hover .cke_image_resizer,' +
'.cke_image_resizer.cke_image_resizing{' +
'display:block' +
'}' +
// Hide resizer in read only mode (#2816).
'.cke_editable[contenteditable="false"] .cke_image_resizer{' +
'display:none;' +
'}' +
// Expand widget wrapper when linked inline image.
'.cke_widget_wrapper>a{' +
'display:inline-block' +
'}' );
},
init: function( editor ) {
// Abort when Easyimage is to be loaded since this plugins
// share the same functionality (#1791).
if ( editor.plugins.detectConflict( 'image2', [ 'easyimage' ] ) ) {
return;
}
// Adapts configuration from original image plugin. Should be removed
// when we'll rename image2 to image.
var config = editor.config,
lang = editor.lang.image2,
image = widgetDef( editor );
// Since filebrowser plugin discovers config properties by dialog (plugin?)
// names (sic!), this hack will be necessary as long as Image2 is not named
// Image. And since Image2 will never be Image, for sure some filebrowser logic
// got to be refined.
config.filebrowserImage2BrowseUrl = config.filebrowserImageBrowseUrl;
config.filebrowserImage2UploadUrl = config.filebrowserImageUploadUrl;
// Add custom elementspath names to widget definition.
image.pathName = lang.pathName;
image.editables.caption.pathName = lang.pathNameCaption;
// Register the widget.
editor.widgets.add( 'image', image );
// Add toolbar button for this plugin.
editor.ui.addButton && editor.ui.addButton( 'Image', {
label: editor.lang.common.image,
command: 'image',
toolbar: 'insert,10'
} );
// Register context menu option for editing widget.
if ( editor.contextMenu ) {
editor.addMenuGroup( 'image', 10 );
editor.addMenuItem( 'image', {
label: lang.menu,
command: 'image',
group: 'image'
} );
}
CKEDITOR.dialog.add( 'image2', this.path + 'dialogs/image2.js' );
},
afterInit: function( editor ) {
// Integrate with align commands (justify plugin).
var align = { left: 1, right: 1, center: 1, block: 1 },
integrate = alignCommandIntegrator( editor );
for ( var value in align )
integrate( value );
// Integrate with link commands (link plugin).
linkCommandIntegrator( editor );
}
} );
// Wiget states (forms) depending on alignment and configuration.
//
// Non-captioned widget (inline styles)
// ┌──────┬───────────────────────────────┬─────────────────────────────┐
// │Align │Internal form │Data │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │none │<wrapper> │<img /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │left │<wrapper style=”float:left”> │<img style=”float:left” /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │center│<wrapper> │<p style=”text-align:center”>│
// │ │ <p style=”text-align:center”> │ <img /> │
// │ │ <img /> │</p> │
// │ │ </p> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │right │<wrapper style=”float:right”> │<img style=”float:right” /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// └──────┴───────────────────────────────┴─────────────────────────────┘
//
// Non-captioned widget (config.image2_alignClasses defined)
// ┌──────┬───────────────────────────────┬─────────────────────────────┐
// │Align │Internal form │Data │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │none │<wrapper> │<img /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │left │<wrapper class=”left”> │<img class=”left” /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │center│<wrapper> │<p class=”center”> │
// │ │ <p class=”center”> │ <img /> │
// │ │ <img /> │</p> │
// │ │ </p> │ │
// │ │</wrapper> │ │
// ├──────┼───────────────────────────────┼─────────────────────────────┤
// │right │<wrapper class=”right”> │<img class=”right” /> │
// │ │ <img /> │ │
// │ │</wrapper> │ │
// └──────┴───────────────────────────────┴─────────────────────────────┘
//
// Captioned widget (inline styles)
// ┌──────┬────────────────────────────────────────┬────────────────────────────────────────┐
// │Align │Internal form │Data │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │none │<wrapper> │<figure /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │left │<wrapper style=”float:left”> │<figure style=”float:left” /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │center│<wrapper style=”text-align:center”> │<div style=”text-align:center”> │
// │ │ <figure style=”display:inline-block” />│ <figure style=”display:inline-block” />│
// │ │</wrapper> │</p> │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │right │<wrapper style=”float:right”> │<figure style=”float:right” /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// └──────┴────────────────────────────────────────┴────────────────────────────────────────┘
//
// Captioned widget (config.image2_alignClasses defined)
// ┌──────┬────────────────────────────────────────┬────────────────────────────────────────┐
// │Align │Internal form │Data │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │none │<wrapper> │<figure /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │left │<wrapper class=”left”> │<figure class=”left” /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │center│<wrapper class=”center”> │<div class=”center”> │
// │ │ <figure /> │ <figure /> │
// │ │</wrapper> │</p> │
// ├──────┼────────────────────────────────────────┼────────────────────────────────────────┤
// │right │<wrapper class=”right”> │<figure class=”right” /> │
// │ │ <figure /> │ │
// │ │</wrapper> │ │
// └──────┴────────────────────────────────────────┴────────────────────────────────────────┘
//
// @param {CKEDITOR.editor}
// @returns {Object}
function widgetDef( editor ) {
var alignClasses = editor.config.image2_alignClasses,
captionedClass = editor.config.image2_captionedClass;
function deflate() {
if ( this.deflated )
return;
// Remember whether widget was focused before destroyed.
if ( editor.widgets.focused == this.widget )
this.focused = true;
editor.widgets.destroy( this.widget );
// Mark widget was destroyed.
this.deflated = true;
}
function inflate() {
var editable = editor.editable(),
doc = editor.document;
// Create a new widget. This widget will be either captioned
// non-captioned, block or inline according to what is the
// new state of the widget.
if ( this.deflated ) {
this.widget = editor.widgets.initOn( this.element, 'image', this.widget.data );
// Once widget was re-created, it may become an inline element without
// block wrapper (i.e. when unaligned, end not captioned). Let's do some
// sort of autoparagraphing here (https://dev.ckeditor.com/ticket/10853).
if ( this.widget.inline && !( new CKEDITOR.dom.elementPath( this.widget.wrapper, editable ).block ) ) {
var block = doc.createElement( editor.activeEnterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
block.replace( this.widget.wrapper );
this.widget.wrapper.move( block );
}
// The focus must be transferred from the old one (destroyed)
// to the new one (just created).
if ( this.focused ) {
this.widget.focus();
delete this.focused;
}
delete this.deflated;
}
// If now widget was destroyed just update wrapper's alignment.
// According to the new state.
else {
setWrapperAlign( this.widget, alignClasses );
}
}
return {
allowedContent: getWidgetAllowedContent( editor ),
requiredContent: 'img[src,alt]',
features: getWidgetFeatures( editor ),
styleableElements: 'img figure',
// This widget converts style-driven dimensions to attributes.
contentTransformations: [
[ 'img[width]: sizeToAttribute' ]
],
// This widget has an editable caption.
editables: {
caption: {
selector: 'figcaption',
allowedContent: 'br em strong sub sup u s; a[!href,target]'
}
},
parts: {
image: 'img',
caption: 'figcaption'
// parts#link defined in widget#init
},
// The name of this widget's dialog.
dialog: 'image2',
// Template of the widget: plain image.
template: template,
data: function() {
var features = this.features;
// Image can't be captioned when figcaption is disallowed (https://dev.ckeditor.com/ticket/11004).
if ( this.data.hasCaption && !editor.filter.checkFeature( features.caption ) )
this.data.hasCaption = false;
// Image can't be aligned when floating is disallowed (https://dev.ckeditor.com/ticket/11004).
if ( this.data.align != 'none' && !editor.filter.checkFeature( features.align ) )
this.data.align = 'none';
// Convert the internal form of the widget from the old state to the new one.
this.shiftState( {
widget: this,
element: this.element,
oldData: this.oldData,
newData: this.data,
deflate: deflate,
inflate: inflate
} );
// Update widget.parts.link since it will not auto-update unless widget
// is destroyed and re-inited.
if ( !this.data.link ) {
if ( this.parts.link )
delete this.parts.link;
} else {
if ( !this.parts.link )
this.parts.link = this.parts.image.getParent();
}
this.parts.image.setAttributes( {
src: this.data.src,
// This internal is required by the editor.
'data-cke-saved-src': this.data.src,
alt: this.data.alt
} );
// If shifting non-captioned -> captioned, remove classes
// related to styles from <img/>.
if ( this.oldData && !this.oldData.hasCaption && this.data.hasCaption ) {
for ( var c in this.data.classes )
this.parts.image.removeClass( c );
}
// Set dimensions of the image according to gathered data.
// Do it only when the attributes are allowed (https://dev.ckeditor.com/ticket/11004).
if ( editor.filter.checkFeature( features.dimension ) )
setDimensions( this );
// Cache current data.
this.oldData = CKEDITOR.tools.extend( {}, this.data );
},
init: function() {
var helpers = CKEDITOR.plugins.image2,
image = this.parts.image,
data = {
hasCaption: !!this.parts.caption,
src: image.getAttribute( 'src' ),
alt: image.getAttribute( 'alt' ) || '',
width: image.getAttribute( 'width' ) || '',
height: image.getAttribute( 'height' ) || '',
// Lock ratio is on by default (https://dev.ckeditor.com/ticket/10833).
lock: this.ready ? helpers.checkHasNaturalRatio( image ) : true
};
// If we used 'a' in widget#parts definition, it could happen that
// selected element is a child of widget.parts#caption. Since there's no clever
// way to solve it with CSS selectors, it's done like that. (https://dev.ckeditor.com/ticket/11783).
var link = image.getAscendant( 'a' );
if ( link && this.wrapper.contains( link ) )
this.parts.link = link;
// Depending on configuration, read style/class from element and
// then remove it. Removed style/class will be set on wrapper in #data listener.
// Note: Center alignment is detected during upcast, so only left/right cases
// are checked below.
if ( !data.align ) {
var alignElement = data.hasCaption ? this.element : image;
// Read the initial left/right alignment from the class set on element.
if ( alignClasses ) {
if ( alignElement.hasClass( alignClasses[ 0 ] ) ) {
data.align = 'left';
} else if ( alignElement.hasClass( alignClasses[ 2 ] ) ) {
data.align = 'right';
}
if ( data.align ) {
alignElement.removeClass( alignClasses[ alignmentsObj[ data.align ] ] );
} else {
data.align = 'none';
}
}
// Read initial float style from figure/image and then remove it.
else {
data.align = alignElement.getStyle( 'float' ) || 'none';
alignElement.removeStyle( 'float' );
}
}
// Update data.link object with attributes if the link has been discovered.
if ( editor.plugins.link && this.parts.link ) {
data.link = helpers.getLinkAttributesParser()( editor, this.parts.link );
// Get rid of cke_widget_* classes in data. Otherwise
// they might appear in link dialog.
var advanced = data.link.advanced;
if ( advanced && advanced.advCSSClasses ) {
advanced.advCSSClasses = CKEDITOR.tools.trim( advanced.advCSSClasses.replace( /cke_\S+/, '' ) );
}
}
// Get rid of extra vertical space when there's no caption.
// It will improve the look of the resizer.
this.wrapper[ ( data.hasCaption ? 'remove' : 'add' ) + 'Class' ]( 'cke_image_nocaption' );
this.setData( data );
// Setup dynamic image resizing with mouse.
// Don't initialize resizer when dimensions are disallowed (https://dev.ckeditor.com/ticket/11004).
if ( editor.filter.checkFeature( this.features.dimension ) && editor.config.image2_disableResizer !== true ) {
setupResizer( this );
}
this.shiftState = helpers.stateShifter( this.editor );
// Add widget editing option to its context menu.
this.on( 'contextMenu', function( evt ) {
evt.data.image = CKEDITOR.TRISTATE_OFF;
// Integrate context menu items for link.
// Note that widget may be wrapped in a link, which
// does not belong to that widget (https://dev.ckeditor.com/ticket/11814).
if ( this.parts.link || this.wrapper.getAscendant( 'a' ) )
evt.data.link = evt.data.unlink = CKEDITOR.TRISTATE_OFF;
} );
},
// Overrides default method to handle internal mutability of Image2.
// @see CKEDITOR.plugins.widget#addClass
addClass: function( className ) {
getStyleableElement( this ).addClass( className );
},
// Overrides default method to handle internal mutability of Image2.
// @see CKEDITOR.plugins.widget#hasClass
hasClass: function( className ) {
return getStyleableElement( this ).hasClass( className );
},
// Overrides default method to handle internal mutability of Image2.
// @see CKEDITOR.plugins.widget#removeClass
removeClass: function( className ) {
getStyleableElement( this ).removeClass( className );
},
// Overrides default method to handle internal mutability of Image2.
// @see CKEDITOR.plugins.widget#getClasses
getClasses: ( function() {
var classRegex = new RegExp( '^(' + [].concat( captionedClass, alignClasses ).join( '|' ) + ')$' );
return function() {
var classes = this.repository.parseElementClasses( getStyleableElement( this ).getAttribute( 'class' ) );
// Neither config.image2_captionedClass nor config.image2_alignClasses
// do not belong to style classes.
for ( var c in classes ) {
if ( classRegex.test( c ) )
delete classes[ c ];
}
return classes;
};
} )(),
upcast: upcastWidgetElement( editor ),
downcast: downcastWidgetElement( editor ),
getLabel: function() {
var label = ( this.data.alt || '' ) + ' ' + this.pathName;
return this.editor.lang.widget.label.replace( /%1/, label );
}
};
}
/**
* A set of Enhanced Image (image2) plugin helpers.
*
* @class
* @singleton
*/
CKEDITOR.plugins.image2 = {
stateShifter: function( editor ) {
// Tag name used for centering non-captioned widgets.
var doc = editor.document,
alignClasses = editor.config.image2_alignClasses,
captionedClass = editor.config.image2_captionedClass,
editable = editor.editable(),
// The order that stateActions get executed. It matters!
shiftables = [ 'hasCaption', 'align', 'link' ];
// Atomic procedures, one per state variable.
var stateActions = {
align: function( shift, oldValue, newValue ) {
var el = shift.element;
// Alignment changed.
if ( shift.changed.align ) {
// No caption in the new state.
if ( !shift.newData.hasCaption ) {
// Changed to "center" (non-captioned).
if ( newValue == 'center' ) {
shift.deflate();
shift.element = wrapInCentering( editor, el );
}
// Changed to "non-center" from "center" while caption removed.
if ( !shift.changed.hasCaption && oldValue == 'center' && newValue != 'center' ) {
shift.deflate();
shift.element = unwrapFromCentering( el );
}
}
}
// Alignment remains and "center" removed caption.
else if ( newValue == 'center' && shift.changed.hasCaption && !shift.newData.hasCaption ) {
shift.deflate();
shift.element = wrapInCentering( editor, el );
}
// Finally set display for figure.
if ( !alignClasses && el.is( 'figure' ) ) {
if ( newValue == 'center' )
el.setStyle( 'display', 'inline-block' );
else
el.removeStyle( 'display' );
}
},
hasCaption: function( shift, oldValue, newValue ) {
// This action is for real state change only.
if ( !shift.changed.hasCaption )
return;
// Get <img/> or <a><img/></a> from widget. Note that widget element might itself
// be what we're looking for. Also element can be <p style="text-align:center"><a>...</a></p>.
var imageOrLink;
if ( shift.element.is( { img: 1, a: 1 } ) )
imageOrLink = shift.element;
else
imageOrLink = shift.element.findOne( 'a,img' );
// Switching hasCaption always destroys the widget.
shift.deflate();
// There was no caption, but the caption is to be added.
if ( newValue ) {
// Create new <figure> from widget template.
var figure = CKEDITOR.dom.element.createFromHtml( templateBlock.output( {
captionedClass: captionedClass,
captionPlaceholder: editor.lang.image2.captionPlaceholder
} ), doc );
// Replace element with <figure>.
replaceSafely( figure, shift.element );
// Use old <img/> or <a><img/></a> instead of the one from the template,
// so we won't lose additional attributes.
imageOrLink.replace( figure.findOne( 'img' ) );
// Update widget's element.
shift.element = figure;
}
// The caption was present, but now it's to be removed.
else {
// Unwrap <img/> or <a><img/></a> from figure.
imageOrLink.replace( shift.element );
// Update widget's element.
shift.element = imageOrLink;
}
},
link: function( shift, oldValue, newValue ) {
if ( shift.changed.link ) {
var img = shift.element.is( 'img' ) ?
shift.element : shift.element.findOne( 'img' ),
link = shift.element.is( 'a' ) ?
shift.element : shift.element.findOne( 'a' ),
// Why deflate:
// If element is <img/>, it will be wrapped into <a>,
// which becomes a new widget.element.
// If element is <a><img/></a>, it will be unlinked
// so <img/> becomes a new widget.element.
needsDeflate = ( shift.element.is( 'a' ) && !newValue ) || ( shift.element.is( 'img' ) && newValue ),
newEl;
if ( needsDeflate )
shift.deflate();
// If unlinked the image, returned element is <img>.
if ( !newValue )
newEl = unwrapFromLink( link );
else {
// If linked the image, returned element is <a>.
if ( !oldValue )
newEl = wrapInLink( img, shift.newData.link );
// Set and remove all attributes associated with this state.
var attributes = CKEDITOR.plugins.image2.getLinkAttributesGetter()( editor, newValue );
if ( !CKEDITOR.tools.isEmpty( attributes.set ) )
( newEl || link ).setAttributes( attributes.set );
if ( attributes.removed.length )
( newEl || link ).removeAttributes( attributes.removed );
}
if ( needsDeflate )
shift.element = newEl;
}
}
};
function wrapInCentering( editor, element ) {
var attribsAndStyles = {};
if ( alignClasses )
attribsAndStyles.attributes = { 'class': alignClasses[ 1 ] };
else
attribsAndStyles.styles = { 'text-align': 'center' };
// There's no gentle way to center inline element with CSS, so create p/div
// that wraps widget contents and does the trick either with style or class.
var center = doc.createElement(
editor.activeEnterMode == CKEDITOR.ENTER_P ? 'p' : 'div', attribsAndStyles );
// Replace element with centering wrapper.
replaceSafely( center, element );
element.move( center );
return center;
}
function unwrapFromCentering( element ) {
var imageOrLink = element.findOne( 'a,img' );
imageOrLink.replace( element );
return imageOrLink;
}
// Wraps <img/> -> <a><img/></a>.
// Returns reference to <a>.
//
// @param {CKEDITOR.dom.element} img
// @param {Object} linkData
// @returns {CKEDITOR.dom.element}
function wrapInLink( img, linkData ) {
var link = doc.createElement( 'a', {
attributes: {
href: linkData.url
}
} );
link.replace( img );
img.move( link );
return link;
}
// De-wraps <a><img/></a> -> <img/>.
// Returns the reference to <img/>
//
// @param {CKEDITOR.dom.element} link
// @returns {CKEDITOR.dom.element}
function unwrapFromLink( link ) {
var img = link.findOne( 'img' );
img.replace( link );
return img;
}
function replaceSafely( replacing, replaced ) {
if ( replaced.getParent() ) {
var range = editor.createRange();
range.moveToPosition( replaced, CKEDITOR.POSITION_BEFORE_START );
// Remove old element. Do it before insertion to avoid a case when
// element is moved from 'replaced' element before it, what creates
// a tricky case which insertElementIntorRange does not handle.
replaced.remove();
editable.insertElementIntoRange( replacing, range );
}
else {
replacing.replace( replaced );
}
}
return function( shift ) {
var name, i;
shift.changed = {};
for ( i = 0; i < shiftables.length; i++ ) {
name = shiftables[ i ];
shift.changed[ name ] = shift.oldData ?
shift.oldData[ name ] !== shift.newData[ name ] : false;
}
// Iterate over possible state variables.
for ( i = 0; i < shiftables.length; i++ ) {
name = shiftables[ i ];
stateActions[ name ]( shift,
shift.oldData ? shift.oldData[ name ] : null,
shift.newData[ name ] );
}
shift.inflate();
};
},
/**
* Checks whether the current image ratio matches the natural one
* by comparing dimensions.
*
* @param {CKEDITOR.dom.element} image
* @returns {Boolean}
*/
checkHasNaturalRatio: function( image ) {
var $ = image.$,
natural = this.getNatural( image );
// The reason for two alternative comparisons is that the rounding can come from
// both dimensions, e.g. there are two cases:
// 1. height is computed as a rounded relation of the real height and the value of width,
// 2. width is computed as a rounded relation of the real width and the value of heigh.
return Math.round( $.clientWidth / natural.width * natural.height ) == $.clientHeight ||
Math.round( $.clientHeight / natural.height * natural.width ) == $.clientWidth;
},
/**
* Returns natural dimensions of the image. For modern browsers
* it uses natural(Width|Height). For old ones (IE8) it creates
* a new image and reads the dimensions.
*
* @param {CKEDITOR.dom.element} image
* @returns {Object}
*/
getNatural: function( image ) {
var dimensions;
if ( image.$.naturalWidth ) {
dimensions = {
width: image.$.naturalWidth,
height: image.$.naturalHeight
};
} else {
var img = new Image();
img.src = image.getAttribute( 'src' );
dimensions = {
width: img.width,
height: img.height
};
}
return dimensions;
},
/**
* Returns an attribute getter function. Default getter comes from the Link plugin
* and is documented by {@link CKEDITOR.plugins.link#getLinkAttributes}.
*
* **Note:** It is possible to override this method and use a custom getter e.g.
* in the absence of the Link plugin.
*
* **Note:** If a custom getter is used, a data model format it produces
* must be compatible with {@link CKEDITOR.plugins.link#getLinkAttributes}.
*
* **Note:** A custom getter must understand the data model format produced by
* {@link #getLinkAttributesParser} to work correctly.
*
* @returns {Function} A function that gets (composes) link attributes.
* @since 4.5.5
*/
getLinkAttributesGetter: function() {
// https://dev.ckeditor.com/ticket/13885
return CKEDITOR.plugins.link.getLinkAttributes;
},
/**
* Returns an attribute parser function. Default parser comes from the Link plugin
* and is documented by {@link CKEDITOR.plugins.link#parseLinkAttributes}.
*
* **Note:** It is possible to override this method and use a custom parser e.g.
* in the absence of the Link plugin.
*
* **Note:** If a custom parser is used, a data model format produced by the parser
* must be compatible with {@link #getLinkAttributesGetter}.
*
* **Note:** If a custom parser is used, it should be compatible with the
* {@link CKEDITOR.plugins.link#parseLinkAttributes} data model format. Otherwise the
* Link plugin dialog may not be populated correctly with parsed data. However
* as long as Enhanced Image is **not** used with the Link plugin dialog, any custom data model
* will work, being stored as an internal property of Enhanced Image widget's data only.
*
* @returns {Function} A function that parses attributes.
* @since 4.5.5
*/
getLinkAttributesParser: function() {
// https://dev.ckeditor.com/ticket/13885
return CKEDITOR.plugins.link.parseLinkAttributes;
}
};
function setWrapperAlign( widget, alignClasses ) {
var wrapper = widget.wrapper,
align = widget.data.align,
hasCaption = widget.data.hasCaption;
if ( alignClasses ) {
// Remove all align classes first.
for ( var i = 3; i--; )
wrapper.removeClass( alignClasses[ i ] );
if ( align == 'center' ) {
// Avoid touching non-captioned, centered widgets because
// they have the class set on the element instead of wrapper:
//
// <div class="cke_widget_wrapper">
// <p class="center-class">
// <img />
// </p>
// </div>
if ( hasCaption ) {
wrapper.addClass( alignClasses[ 1 ] );
}
} else if ( align != 'none' ) {
wrapper.addClass( alignClasses[ alignmentsObj[ align ] ] );
}
} else {
if ( align == 'center' ) {
if ( hasCaption )
wrapper.setStyle( 'text-align', 'center' );
else
wrapper.removeStyle( 'text-align' );
wrapper.removeStyle( 'float' );
}
else {
if ( align == 'none' )
wrapper.removeStyle( 'float' );
else
wrapper.setStyle( 'float', align );
wrapper.removeStyle( 'text-align' );
}
}
}
// Returns a function that creates widgets from all <img> and
// <figure class="{config.image2_captionedClass}"> elements.
//
// @param {CKEDITOR.editor} editor
// @returns {Function}
function upcastWidgetElement( editor ) {
var isCenterWrapper = centerWrapperChecker( editor ),
captionedClass = editor.config.image2_captionedClass;
// @param {CKEDITOR.htmlParser.element} el
// @param {Object} data
return function( el, data ) {
var dimensions = { width: 1, height: 1 },
name = el.name,
image;
// https://dev.ckeditor.com/ticket/11110 Don't initialize on pasted fake objects.
if ( el.attributes[ 'data-cke-realelement' ] )
return;
// If a center wrapper is found, there are 3 possible cases:
//
// 1. <div style="text-align:center"><figure>...</figure></div>.
// In this case centering is done with a class set on widget.wrapper.
// Simply replace centering wrapper with figure (it's no longer necessary).
//
// 2. <p style="text-align:center"><img/></p>.
// Nothing to do here: <p> remains for styling purposes.
//
// 3. <div style="text-align:center"><img/></div>.
// Nothing to do here (2.) but that case is only possible in enterMode different
// than ENTER_P.
if ( isCenterWrapper( el ) ) {
if ( name == 'div' ) {
var figure = el.getFirst( 'figure' );
// Case #1.
if ( figure ) {
el.replaceWith( figure );
el = figure;
}
}
// Cases #2 and #3 (handled transparently)
// If there's a centering wrapper, save it in data.
data.align = 'center';
// Image can be wrapped in link <a><img/></a>.
image = el.getFirst( 'img' ) || el.getFirst( 'a' ).getFirst( 'img' );
}
// No center wrapper has been found.
else if ( name == 'figure' && el.hasClass( captionedClass ) ) {
image = el.find( function( child ) {
return child.name === 'img' &&
CKEDITOR.tools.array.indexOf( [ 'figure', 'a' ], child.parent.name ) !== -1;
}, true )[ 0 ];
// Upcast linked image like <a><img/></a>.
} else if ( isLinkedOrStandaloneImage( el ) ) {
image = el.name == 'a' ? el.children[ 0 ] : el;
}
if ( !image )
return;
// If there's an image, then cool, we got a widget.
// Now just remove dimension attributes expressed with %.
for ( var d in dimensions ) {
var dimension = image.attributes[ d ];
if ( dimension && dimension.match( regexPercent ) )
delete image.attributes[ d ];
}
return el;
};
}
// Returns a function which transforms the widget to the external format
// according to the current configuration.
//
// @param {CKEDITOR.editor}
function downcastWidgetElement( editor ) {
var alignClasses = editor.config.image2_alignClasses;
// @param {CKEDITOR.htmlParser.element} el
return function( el ) {
// In case of <a><img/></a>, <img/> is the element to hold
// inline styles or classes (image2_alignClasses).
var attrsHolder = el.name == 'a' ? el.getFirst() : el,
attrs = attrsHolder.attributes,
align = this.data.align;
// De-wrap the image from resize handle wrapper.
// Only block widgets have one.
if ( !this.inline ) {
var resizeWrapper = el.getFirst( 'span' );
if ( resizeWrapper )
resizeWrapper.replaceWith( resizeWrapper.getFirst( { img: 1, a: 1 } ) );
}
if ( align && align != 'none' ) {
var styles = CKEDITOR.tools.parseCssText( attrs.style || '' );
// When the widget is captioned (<figure>) and internally centering is done
// with widget's wrapper style/class, in the external data representation,
// <figure> must be wrapped with an element holding an style/class:
//
// <div style="text-align:center">