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/**
* @file
* CKEditor button and group configuration user interface.
*/
(function ($, Drupal, drupalSettings, _) {
'use strict';
Drupal.ckeditor = Drupal.ckeditor || {};
/**
* Sets config behaviour and creates config views for the CKEditor toolbar.
*
* @type {Drupal~behavior}
*
* @prop {Drupal~behaviorAttach} attach
* Attaches admin behaviour to the CKEditor buttons.
* @prop {Drupal~behaviorDetach} detach
* Detaches admin behaviour from the CKEditor buttons on 'unload'.
*/
Drupal.behaviors.ckeditorAdmin = {
attach: function (context) {
// Process the CKEditor configuration fragment once.
var $configurationForm = $(context).find('.ckeditor-toolbar-configuration').once('ckeditor-configuration');
if ($configurationForm.length) {
var $textarea = $configurationForm
// Hide the textarea that contains the serialized representation of the
// CKEditor configuration.
.find('.js-form-item-editor-settings-toolbar-button-groups')
.hide()
// Return the textarea child node from this expression.
.find('textarea');
// The HTML for the CKEditor configuration is assembled on the server
// and sent to the client as a serialized DOM fragment.
$configurationForm.append(drupalSettings.ckeditor.toolbarAdmin);
// Create a configuration model.
var model = Drupal.ckeditor.models.Model = new Drupal.ckeditor.Model({
$textarea: $textarea,
activeEditorConfig: JSON.parse($textarea.val()),
hiddenEditorConfig: drupalSettings.ckeditor.hiddenCKEditorConfig
});
// Create the configuration Views.
var viewDefaults = {
model: model,
el: $('.ckeditor-toolbar-configuration')
};
Drupal.ckeditor.views = {
controller: new Drupal.ckeditor.ControllerView(viewDefaults),
visualView: new Drupal.ckeditor.VisualView(viewDefaults),
keyboardView: new Drupal.ckeditor.KeyboardView(viewDefaults),
auralView: new Drupal.ckeditor.AuralView(viewDefaults)
};
}
},
detach: function (context, settings, trigger) {
// Early-return if the trigger for detachment is something else than
// unload.
if (trigger !== 'unload') {
return;
}
// We're detaching because CKEditor as text editor has been disabled; this
// really means that all CKEditor toolbar buttons have been removed.
// Hence,all editor features will be removed, so any reactions from
// filters will be undone.
var $configurationForm = $(context).find('.ckeditor-toolbar-configuration').findOnce('ckeditor-configuration');
if ($configurationForm.length && Drupal.ckeditor.models && Drupal.ckeditor.models.Model) {
var config = Drupal.ckeditor.models.Model.toJSON().activeEditorConfig;
var buttons = Drupal.ckeditor.views.controller.getButtonList(config);
var $activeToolbar = $('.ckeditor-toolbar-configuration').find('.ckeditor-toolbar-active');
for (var i = 0; i < buttons.length; i++) {
$activeToolbar.trigger('CKEditorToolbarChanged', ['removed', buttons[i]]);
}
}
}
};
/**
* CKEditor configuration UI methods of Backbone objects.
*
* @namespace
*/
Drupal.ckeditor = {
/**
* A hash of View instances.
*
* @type {object}
*/
views: {},
/**
* A hash of Model instances.
*
* @type {object}
*/
models: {},
/**
* Translates changes in CKEditor config DOM structure to the config model.
*
* If the button is moved within an existing group, the DOM structure is
* simply translated to a configuration model. If the button is moved into a
* new group placeholder, then a process is launched to name that group
* before the button move is translated into configuration.
*
* @param {Backbone.View} view
* The Backbone View that invoked this function.
* @param {jQuery} $button
* A jQuery set that contains an li element that wraps a button element.
* @param {function} callback
* A callback to invoke after the button group naming modal dialog has
* been closed.
*
*/
registerButtonMove: function (view, $button, callback) {
var $group = $button.closest('.ckeditor-toolbar-group');
// If dropped in a placeholder button group, the user must name it.
if ($group.hasClass('placeholder')) {
if (view.isProcessing) {
return;
}
view.isProcessing = true;
Drupal.ckeditor.openGroupNameDialog(view, $group, callback);
}
else {
view.model.set('isDirty', true);
callback(true);
}
},
/**
* Translates changes in CKEditor config DOM structure to the config model.
*
* Each row has a placeholder group at the end of the row. A user may not
* move an existing button group past the placeholder group at the end of a
* row.
*
* @param {Backbone.View} view
* The Backbone View that invoked this function.
* @param {jQuery} $group
* A jQuery set that contains an li element that wraps a group of buttons.
*/
registerGroupMove: function (view, $group) {
// Remove placeholder classes if necessary.
var $row = $group.closest('.ckeditor-row');
if ($row.hasClass('placeholder')) {
$row.removeClass('placeholder');
}
// If there are any rows with just a placeholder group, mark the row as a
// placeholder.
$row.parent().children().each(function () {
$row = $(this);
if ($row.find('.ckeditor-toolbar-group').not('.placeholder').length === 0) {
$row.addClass('placeholder');
}
});
view.model.set('isDirty', true);
},
/**
* Opens a dialog with a form for changing the title of a button group.
*
* @param {Backbone.View} view
* The Backbone View that invoked this function.
* @param {jQuery} $group
* A jQuery set that contains an li element that wraps a group of buttons.
* @param {function} callback
* A callback to invoke after the button group naming modal dialog has
* been closed.
*/
openGroupNameDialog: function (view, $group, callback) {
callback = callback || function () {};
/**
* Validates the string provided as a button group title.
*
* @param {HTMLElement} form
* The form DOM element that contains the input with the new button
* group title string.
*
* @return {bool}
* Returns true when an error exists, otherwise returns false.
*/
function validateForm(form) {
if (form.elements[0].value.length === 0) {
var $form = $(form);
if (!$form.hasClass('errors')) {
$form
.addClass('errors')
.find('input')
.addClass('error')
.attr('aria-invalid', 'true');
$('<div class=\"description\" >' + Drupal.t('Please provide a name for the button group.') + '</div>').insertAfter(form.elements[0]);
}
return true;
}
return false;
}
/**
* Attempts to close the dialog; Validates user input.
*
* @param {string} action
* The dialog action chosen by the user: 'apply' or 'cancel'.
* @param {HTMLElement} form
* The form DOM element that contains the input with the new button
* group title string.
*/
function closeDialog(action, form) {
/**
* Closes the dialog when the user cancels or supplies valid data.
*/
function shutdown() {
dialog.close(action);
// The processing marker can be deleted since the dialog has been
// closed.
delete view.isProcessing;
}
/**
* Applies a string as the name of a CKEditor button group.
*
* @param {jQuery} $group
* A jQuery set that contains an li element that wraps a group of
* buttons.
* @param {string} name
* The new name of the CKEditor button group.
*/
function namePlaceholderGroup($group, name) {
// If it's currently still a placeholder, then that means we're
// creating a new group, and we must do some extra work.
if ($group.hasClass('placeholder')) {
// Remove all whitespace from the name, lowercase it and ensure
// HTML-safe encoding, then use this as the group ID for CKEditor
// configuration UI accessibility purposes only.
var groupID = 'ckeditor-toolbar-group-aria-label-for-' + Drupal.checkPlain(name.toLowerCase().replace(/\s/g, '-'));
$group
// Update the group container.
.removeAttr('aria-label')
.attr('data-drupal-ckeditor-type', 'group')
.attr('tabindex', 0)
// Update the group heading.
.children('.ckeditor-toolbar-group-name')
.attr('id', groupID)
.end()
// Update the group items.
.children('.ckeditor-toolbar-group-buttons')
.attr('aria-labelledby', groupID);
}
$group
.attr('data-drupal-ckeditor-toolbar-group-name', name)
.children('.ckeditor-toolbar-group-name')
.text(name);
}
// Invoke a user-provided callback and indicate failure.
if (action === 'cancel') {
shutdown();
callback(false, $group);
return;
}
// Validate that a group name was provided.
if (form && validateForm(form)) {
return;
}
// React to application of a valid group name.
if (action === 'apply') {
shutdown();
// Apply the provided name to the button group label.
namePlaceholderGroup($group, Drupal.checkPlain(form.elements[0].value));
// Remove placeholder classes so that new placeholders will be
// inserted.
$group.closest('.ckeditor-row.placeholder').addBack().removeClass('placeholder');
// Invoke a user-provided callback and indicate success.
callback(true, $group);
// Signal that the active toolbar DOM structure has changed.
view.model.set('isDirty', true);
}
}
// Create a Drupal dialog that will get a button group name from the user.
var $ckeditorButtonGroupNameForm = $(Drupal.theme('ckeditorButtonGroupNameForm'));
var dialog = Drupal.dialog($ckeditorButtonGroupNameForm.get(0), {
title: Drupal.t('Button group name'),
dialogClass: 'ckeditor-name-toolbar-group',
resizable: false,
buttons: [
{
text: Drupal.t('Apply'),
click: function () {
closeDialog('apply', this);
},
primary: true
},
{
text: Drupal.t('Cancel'),
click: function () {
closeDialog('cancel');
}
}
],
open: function () {
var form = this;
var $form = $(this);
var $widget = $form.parent();
$widget.find('.ui-dialog-titlebar-close').remove();
// Set a click handler on the input and button in the form.
$widget.on('keypress.ckeditor', 'input, button', function (event) {
// React to enter key press.
if (event.keyCode === 13) {
var $target = $(event.currentTarget);
var data = $target.data('ui-button');
var action = 'apply';
// Assume 'apply', but take into account that the user might have
// pressed the enter key on the dialog buttons.
if (data && data.options && data.options.label) {
action = data.options.label.toLowerCase();
}
closeDialog(action, form);
event.stopPropagation();
event.stopImmediatePropagation();
event.preventDefault();
}
});
// Announce to the user that a modal dialog is open.
var text = Drupal.t('Editing the name of the new button group in a dialog.');
if (typeof $group.attr('data-drupal-ckeditor-toolbar-group-name') !== 'undefined') {
text = Drupal.t('Editing the name of the "@groupName" button group in a dialog.', {
'@groupName': $group.attr('data-drupal-ckeditor-toolbar-group-name')
});
}
Drupal.announce(text);
},
close: function (event) {
// Automatically destroy the DOM element that was used for the dialog.
$(event.target).remove();
}
});
// A modal dialog is used because the user must provide a button group
// name or cancel the button placement before taking any other action.
dialog.showModal();
$(document.querySelector('.ckeditor-name-toolbar-group').querySelector('input'))
// When editing, set the "group name" input in the form to the current
// value.
.attr('value', $group.attr('data-drupal-ckeditor-toolbar-group-name'))
// Focus on the "group name" input in the form.
.trigger('focus');
}
};
/**
* Automatically shows/hides settings of buttons-only CKEditor plugins.
*
* @type {Drupal~behavior}
*
* @prop {Drupal~behaviorAttach} attach
* Attaches show/hide behaviour to Plugin Settings buttons.
*/
Drupal.behaviors.ckeditorAdminButtonPluginSettings = {
attach: function (context) {
var $context = $(context);
var $ckeditorPluginSettings = $context.find('#ckeditor-plugin-settings').once('ckeditor-plugin-settings');
if ($ckeditorPluginSettings.length) {
// Hide all button-dependent plugin settings initially.
$ckeditorPluginSettings.find('[data-ckeditor-buttons]').each(function () {
var $this = $(this);
if ($this.data('verticalTab')) {
$this.data('verticalTab').tabHide();
}
else {
// On very narrow viewports, Vertical Tabs are disabled.
$this.hide();
}
$this.data('ckeditorButtonPluginSettingsActiveButtons', []);
});
// Whenever a button is added or removed, check if we should show or
// hide the corresponding plugin settings. (Note that upon
// initialization, each button that already is part of the toolbar still
// is considered "added", hence it also works correctly for buttons that
// were added previously.)
$context
.find('.ckeditor-toolbar-active')
.off('CKEditorToolbarChanged.ckeditorAdminPluginSettings')
.on('CKEditorToolbarChanged.ckeditorAdminPluginSettings', function (event, action, button) {
var $pluginSettings = $ckeditorPluginSettings
.find('[data-ckeditor-buttons~=' + button + ']');
// No settings for this button.
if ($pluginSettings.length === 0) {
return;
}
var verticalTab = $pluginSettings.data('verticalTab');
var activeButtons = $pluginSettings.data('ckeditorButtonPluginSettingsActiveButtons');
if (action === 'added') {
activeButtons.push(button);
// Show this plugin's settings if >=1 of its buttons are active.
if (verticalTab) {
verticalTab.tabShow();
}
else {
// On very narrow viewports, Vertical Tabs remain fieldsets.
$pluginSettings.show();
}
}
else {
// Remove this button from the list of active buttons.
activeButtons.splice(activeButtons.indexOf(button), 1);
// Show this plugin's settings 0 of its buttons are active.
if (activeButtons.length === 0) {
if (verticalTab) {
verticalTab.tabHide();
}
else {
// On very narrow viewports, Vertical Tabs are disabled.
$pluginSettings.hide();
}
}
}
$pluginSettings.data('ckeditorButtonPluginSettingsActiveButtons', activeButtons);
});
}
}
};
/**
* Themes a blank CKEditor row.
*
* @return {string}
* A HTML string for a CKEditor row.
*/
Drupal.theme.ckeditorRow = function () {
return '<li class="ckeditor-row placeholder" role="group"><ul class="ckeditor-toolbar-groups clearfix"></ul></li>';
};
/**
* Themes a blank CKEditor button group.
*
* @return {string}
* A HTML string for a CKEditor button group.
*/
Drupal.theme.ckeditorToolbarGroup = function () {
var group = '';
group += '<li class="ckeditor-toolbar-group placeholder" role="presentation" aria-label="' + Drupal.t('Place a button to create a new button group.') + '">';
group += '<h3 class="ckeditor-toolbar-group-name">' + Drupal.t('New group') + '</h3>';
group += '<ul class="ckeditor-buttons ckeditor-toolbar-group-buttons" role="toolbar" data-drupal-ckeditor-button-sorting="target"></ul>';
group += '</li>';
return group;
};
/**
* Themes a form for changing the title of a CKEditor button group.
*
* @return {string}
* A HTML string for the form for the title of a CKEditor button group.
*/
Drupal.theme.ckeditorButtonGroupNameForm = function () {
return '<form><input name="group-name" required="required"></form>';
};
/**
* Themes a button that will toggle the button group names in active config.
*
* @return {string}
* A HTML string for the button to toggle group names.
*/
Drupal.theme.ckeditorButtonGroupNamesToggle = function () {
return '<button class="link ckeditor-groupnames-toggle" aria-pressed="false"></button>';
};
/**
* Themes a button that will prompt the user to name a new button group.
*
* @return {string}
* A HTML string for the button to create a name for a new button group.
*/
Drupal.theme.ckeditorNewButtonGroup = function () {
return '<li class="ckeditor-add-new-group"><button aria-label="' + Drupal.t('Add a CKEditor button group to the end of this row.') + '">' + Drupal.t('Add group') + '</button></li>';
};
})(jQuery, Drupal, drupalSettings, _);