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/**
* @file
* Drupal Link plugin.
*
* @ignore
*/
(function ($, Drupal, drupalSettings, CKEDITOR) {
'use strict';
function parseAttributes(editor, element) {
var parsedAttributes = {};
var domElement = element.$;
var attribute;
var attributeName;
for (var attrIndex = 0; attrIndex < domElement.attributes.length; attrIndex++) {
attribute = domElement.attributes.item(attrIndex);
attributeName = attribute.nodeName.toLowerCase();
// Ignore data-cke-* attributes; they're CKEditor internals.
if (attributeName.indexOf('data-cke-') === 0) {
continue;
}
// Store the value for this attribute, unless there's a data-cke-saved-
// alternative for it, which will contain the quirk-free, original value.
parsedAttributes[attributeName] = element.data('cke-saved-' + attributeName) || attribute.nodeValue;
}
// Remove any cke_* classes.
if (parsedAttributes.class) {
parsedAttributes.class = CKEDITOR.tools.trim(parsedAttributes.class.replace(/cke_\S+/, ''));
}
return parsedAttributes;
}
function getAttributes(editor, data) {
var set = {};
for (var attributeName in data) {
if (data.hasOwnProperty(attributeName)) {
set[attributeName] = data[attributeName];
}
}
// CKEditor tracks the *actual* saved href in a data-cke-saved-* attribute
// to work around browser quirks. We need to update it.
set['data-cke-saved-href'] = set.href;
// Remove all attributes which are not currently set.
var removed = {};
for (var s in set) {
if (set.hasOwnProperty(s)) {
delete removed[s];
}
}
return {
set: set,
removed: CKEDITOR.tools.objectKeys(removed)
};
}
CKEDITOR.plugins.add('drupallink', {
icons: 'drupallink,drupalunlink',
hidpi: true,
init: function (editor) {
// Add the commands for link and unlink.
editor.addCommand('drupallink', {
allowedContent: {
a: {
attributes: {
'!href': true
},
classes: {}
}
},
requiredContent: new CKEDITOR.style({
element: 'a',
attributes: {
href: ''
}
}),
modes: {wysiwyg: 1},
canUndo: true,
exec: function (editor) {
var drupalImageUtils = CKEDITOR.plugins.drupalimage;
var focusedImageWidget = drupalImageUtils && drupalImageUtils.getFocusedWidget(editor);
var linkElement = getSelectedLink(editor);
// Set existing values based on selected element.
var existingValues = {};
if (linkElement && linkElement.$) {
existingValues = parseAttributes(editor, linkElement);
}
// Or, if an image widget is focused, we're editing a link wrapping
// an image widget.
else if (focusedImageWidget && focusedImageWidget.data.link) {
existingValues = CKEDITOR.tools.clone(focusedImageWidget.data.link);
}
// Prepare a save callback to be used upon saving the dialog.
var saveCallback = function (returnValues) {
// If an image widget is focused, we're not editing an independent
// link, but we're wrapping an image widget in a link.
if (focusedImageWidget) {
focusedImageWidget.setData('link', CKEDITOR.tools.extend(returnValues.attributes, focusedImageWidget.data.link));
editor.fire('saveSnapshot');
return;
}
editor.fire('saveSnapshot');
// Create a new link element if needed.
if (!linkElement && returnValues.attributes.href) {
var selection = editor.getSelection();
var range = selection.getRanges(1)[0];
// Use link URL as text with a collapsed cursor.
if (range.collapsed) {
// Shorten mailto URLs to just the email address.
var text = new CKEDITOR.dom.text(returnValues.attributes.href.replace(/^mailto:/, ''), editor.document);
range.insertNode(text);
range.selectNodeContents(text);
}
// Create the new link by applying a style to the new text.
var style = new CKEDITOR.style({element: 'a', attributes: returnValues.attributes});
style.type = CKEDITOR.STYLE_INLINE;
style.applyToRange(range);
range.select();
// Set the link so individual properties may be set below.
linkElement = getSelectedLink(editor);
}
// Update the link properties.
else if (linkElement) {
for (var attrName in returnValues.attributes) {
if (returnValues.attributes.hasOwnProperty(attrName)) {
// Update the property if a value is specified.
if (returnValues.attributes[attrName].length > 0) {
var value = returnValues.attributes[attrName];
linkElement.data('cke-saved-' + attrName, value);
linkElement.setAttribute(attrName, value);
}
// Delete the property if set to an empty string.
else {
linkElement.removeAttribute(attrName);
}
}
}
}
// Save snapshot for undo support.
editor.fire('saveSnapshot');
};
// Drupal.t() will not work inside CKEditor plugins because CKEditor
// loads the JavaScript file instead of Drupal. Pull translated
// strings from the plugin settings that are translated server-side.
var dialogSettings = {
title: linkElement ? editor.config.drupalLink_dialogTitleEdit : editor.config.drupalLink_dialogTitleAdd,
dialogClass: 'editor-link-dialog'
};
// Open the dialog for the edit form.
Drupal.ckeditor.openDialog(editor, Drupal.url('editor/dialog/link/' + editor.config.drupal.format), existingValues, saveCallback, dialogSettings);
}
});
editor.addCommand('drupalunlink', {
contextSensitive: 1,
startDisabled: 1,
requiredContent: new CKEDITOR.style({
element: 'a',
attributes: {
href: ''
}
}),
exec: function (editor) {
var style = new CKEDITOR.style({element: 'a', type: CKEDITOR.STYLE_INLINE, alwaysRemoveElement: 1});
editor.removeStyle(style);
},
refresh: function (editor, path) {
var element = path.lastElement && path.lastElement.getAscendant('a', true);
if (element && element.getName() === 'a' && element.getAttribute('href') && element.getChildCount()) {
this.setState(CKEDITOR.TRISTATE_OFF);
}
else {
this.setState(CKEDITOR.TRISTATE_DISABLED);
}
}
});
// CTRL + K.
editor.setKeystroke(CKEDITOR.CTRL + 75, 'drupallink');
// Add buttons for link and unlink.
if (editor.ui.addButton) {
editor.ui.addButton('DrupalLink', {
label: Drupal.t('Link'),
command: 'drupallink'
});
editor.ui.addButton('DrupalUnlink', {
label: Drupal.t('Unlink'),
command: 'drupalunlink'
});
}
editor.on('doubleclick', function (evt) {
var element = getSelectedLink(editor) || evt.data.element;
if (!element.isReadOnly()) {
if (element.is('a')) {
editor.getSelection().selectElement(element);
editor.getCommand('drupallink').exec();
}
}
});
// If the "menu" plugin is loaded, register the menu items.
if (editor.addMenuItems) {
editor.addMenuItems({
link: {
label: Drupal.t('Edit Link'),
command: 'drupallink',
group: 'link',
order: 1
},
unlink: {
label: Drupal.t('Unlink'),
command: 'drupalunlink',
group: 'link',
order: 5
}
});
}
// If the "contextmenu" plugin is loaded, register the listeners.
if (editor.contextMenu) {
editor.contextMenu.addListener(function (element, selection) {
if (!element || element.isReadOnly()) {
return null;
}
var anchor = getSelectedLink(editor);
if (!anchor) {
return null;
}
var menu = {};
if (anchor.getAttribute('href') && anchor.getChildCount()) {
menu = {link: CKEDITOR.TRISTATE_OFF, unlink: CKEDITOR.TRISTATE_OFF};
}
return menu;
});
}
}
});
/**
* Get the surrounding link element of current selection.
*
* The following selection will all return the link element.
*
* @example
* <a href="#">li^nk</a>
* <a href="#">[link]</a>
* text[<a href="#">link]</a>
* <a href="#">li[nk</a>]
* [<b><a href="#">li]nk</a></b>]
* [<a href="#"><b>li]nk</b></a>
*
* @param {CKEDITOR.editor} editor
* The CKEditor editor object
*
* @return {?HTMLElement}
* The selected link element, or null.
*
*/
function getSelectedLink(editor) {
var selection = editor.getSelection();
var selectedElement = selection.getSelectedElement();
if (selectedElement && selectedElement.is('a')) {
return selectedElement;
}
var range = selection.getRanges(true)[0];
if (range) {
range.shrink(CKEDITOR.SHRINK_TEXT);
return editor.elementPath(range.getCommonAncestor()).contains('a', 1);
}
return null;
}
// Expose an API for other plugins to interact with drupallink widgets.
// (Compatible with the official CKEditor link plugin's API:
// http://dev.ckeditor.com/ticket/13885.)
CKEDITOR.plugins.drupallink = {
parseLinkAttributes: parseAttributes,
getLinkAttributes: getAttributes
};
})(jQuery, Drupal, drupalSettings, CKEDITOR);