430 lines
15 KiB
JavaScript
430 lines
15 KiB
JavaScript
|
/* global wp */
|
||
|
|
/* eslint consistent-this: [ "error", "control" ] */
|
||
|
|
/* eslint no-magic-numbers: ["error", { "ignore": [0,1,-1] }] */
|
||
|
|
wp.customHtmlWidgets = ( function( $ ) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var component = {
|
||
|
|
idBases: [ 'custom_html' ],
|
||
|
|
codeEditorSettings: {},
|
||
|
|
l10n: {
|
||
|
|
errorNotice: {
|
||
|
|
singular: '',
|
||
|
|
plural: ''
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Text widget control.
|
||
|
|
*
|
||
|
|
* @class CustomHtmlWidgetControl
|
||
|
|
* @constructor
|
||
|
|
* @abstract
|
||
|
|
*/
|
||
|
|
component.CustomHtmlWidgetControl = Backbone.View.extend({
|
||
|
|
|
||
|
|
/**
|
||
|
|
* View events.
|
||
|
|
*
|
||
|
|
* @type {Object}
|
||
|
|
*/
|
||
|
|
events: {},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize.
|
||
|
|
*
|
||
|
|
* @param {Object} options - Options.
|
||
|
|
* @param {jQuery} options.el - Control field container element.
|
||
|
|
* @param {jQuery} options.syncContainer - Container element where fields are synced for the server.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
initialize: function initialize( options ) {
|
||
|
|
var control = this;
|
||
|
|
|
||
|
|
if ( ! options.el ) {
|
||
|
|
throw new Error( 'Missing options.el' );
|
||
|
|
}
|
||
|
|
if ( ! options.syncContainer ) {
|
||
|
|
throw new Error( 'Missing options.syncContainer' );
|
||
|
|
}
|
||
|
|
|
||
|
|
Backbone.View.prototype.initialize.call( control, options );
|
||
|
|
control.syncContainer = options.syncContainer;
|
||
|
|
control.widgetIdBase = control.syncContainer.parent().find( '.id_base' ).val();
|
||
|
|
control.widgetNumber = control.syncContainer.parent().find( '.widget_number' ).val();
|
||
|
|
control.customizeSettingId = 'widget_' + control.widgetIdBase + '[' + String( control.widgetNumber ) + ']';
|
||
|
|
|
||
|
|
control.$el.addClass( 'custom-html-widget-fields' );
|
||
|
|
control.$el.html( wp.template( 'widget-custom-html-control-fields' )( { codeEditorDisabled: component.codeEditorSettings.disabled } ) );
|
||
|
|
|
||
|
|
control.errorNoticeContainer = control.$el.find( '.code-editor-error-container' );
|
||
|
|
control.currentErrorAnnotations = [];
|
||
|
|
control.saveButton = control.syncContainer.add( control.syncContainer.parent().find( '.widget-control-actions' ) ).find( '.widget-control-save, #savewidget' );
|
||
|
|
control.saveButton.addClass( 'custom-html-widget-save-button' ); // To facilitate style targeting.
|
||
|
|
|
||
|
|
control.fields = {
|
||
|
|
title: control.$el.find( '.title' ),
|
||
|
|
content: control.$el.find( '.content' )
|
||
|
|
};
|
||
|
|
|
||
|
|
// Sync input fields to hidden sync fields which actually get sent to the server.
|
||
|
|
_.each( control.fields, function( fieldInput, fieldName ) {
|
||
|
|
fieldInput.on( 'input change', function updateSyncField() {
|
||
|
|
var syncInput = control.syncContainer.find( '.sync-input.' + fieldName );
|
||
|
|
if ( syncInput.val() !== fieldInput.val() ) {
|
||
|
|
syncInput.val( fieldInput.val() );
|
||
|
|
syncInput.trigger( 'change' );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Note that syncInput cannot be re-used because it will be destroyed with each widget-updated event.
|
||
|
|
fieldInput.val( control.syncContainer.find( '.sync-input.' + fieldName ).val() );
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update input fields from the sync fields.
|
||
|
|
*
|
||
|
|
* This function is called at the widget-updated and widget-synced events.
|
||
|
|
* A field will only be updated if it is not currently focused, to avoid
|
||
|
|
* overwriting content that the user is entering.
|
||
|
|
*
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
updateFields: function updateFields() {
|
||
|
|
var control = this, syncInput;
|
||
|
|
|
||
|
|
if ( ! control.fields.title.is( document.activeElement ) ) {
|
||
|
|
syncInput = control.syncContainer.find( '.sync-input.title' );
|
||
|
|
control.fields.title.val( syncInput.val() );
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Prevent updating content when the editor is focused or if there are current error annotations,
|
||
|
|
* to prevent the editor's contents from getting sanitized as soon as a user removes focus from
|
||
|
|
* the editor. This is particularly important for users who cannot unfiltered_html.
|
||
|
|
*/
|
||
|
|
control.contentUpdateBypassed = control.fields.content.is( document.activeElement ) || control.editor && control.editor.codemirror.state.focused || 0 !== control.currentErrorAnnotations;
|
||
|
|
if ( ! control.contentUpdateBypassed ) {
|
||
|
|
syncInput = control.syncContainer.find( '.sync-input.content' );
|
||
|
|
control.fields.content.val( syncInput.val() ).trigger( 'change' );
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Show linting error notice.
|
||
|
|
*
|
||
|
|
* @param {Array} errorAnnotations - Error annotations.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
updateErrorNotice: function( errorAnnotations ) {
|
||
|
|
var control = this, errorNotice, message = '', customizeSetting;
|
||
|
|
|
||
|
|
if ( 1 === errorAnnotations.length ) {
|
||
|
|
message = component.l10n.errorNotice.singular.replace( '%d', '1' );
|
||
|
|
} else if ( errorAnnotations.length > 1 ) {
|
||
|
|
message = component.l10n.errorNotice.plural.replace( '%d', String( errorAnnotations.length ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( control.fields.content[0].setCustomValidity ) {
|
||
|
|
control.fields.content[0].setCustomValidity( message );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( wp.customize && wp.customize.has( control.customizeSettingId ) ) {
|
||
|
|
customizeSetting = wp.customize( control.customizeSettingId );
|
||
|
|
customizeSetting.notifications.remove( 'htmlhint_error' );
|
||
|
|
if ( 0 !== errorAnnotations.length ) {
|
||
|
|
customizeSetting.notifications.add( 'htmlhint_error', new wp.customize.Notification( 'htmlhint_error', {
|
||
|
|
message: message,
|
||
|
|
type: 'error'
|
||
|
|
} ) );
|
||
|
|
}
|
||
|
|
} else if ( 0 !== errorAnnotations.length ) {
|
||
|
|
errorNotice = $( '<div class="inline notice notice-error notice-alt"></div>' );
|
||
|
|
errorNotice.append( $( '<p></p>', {
|
||
|
|
text: message
|
||
|
|
} ) );
|
||
|
|
control.errorNoticeContainer.empty();
|
||
|
|
control.errorNoticeContainer.append( errorNotice );
|
||
|
|
control.errorNoticeContainer.slideDown( 'fast' );
|
||
|
|
wp.a11y.speak( message );
|
||
|
|
} else {
|
||
|
|
control.errorNoticeContainer.slideUp( 'fast' );
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize editor.
|
||
|
|
*
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
initializeEditor: function initializeEditor() {
|
||
|
|
var control = this, settings;
|
||
|
|
|
||
|
|
if ( component.codeEditorSettings.disabled ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
settings = _.extend( {}, component.codeEditorSettings, {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle tabbing to the field before the editor.
|
||
|
|
*
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
onTabPrevious: function onTabPrevious() {
|
||
|
|
control.fields.title.focus();
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle tabbing to the field after the editor.
|
||
|
|
*
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
onTabNext: function onTabNext() {
|
||
|
|
var tabbables = control.syncContainer.add( control.syncContainer.parent().find( '.widget-position, .widget-control-actions' ) ).find( ':tabbable' );
|
||
|
|
tabbables.first().focus();
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disable save button and store linting errors for use in updateFields.
|
||
|
|
*
|
||
|
|
* @param {Array} errorAnnotations - Error notifications.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
onChangeLintingErrors: function onChangeLintingErrors( errorAnnotations ) {
|
||
|
|
control.currentErrorAnnotations = errorAnnotations;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update error notice.
|
||
|
|
*
|
||
|
|
* @param {Array} errorAnnotations - Error annotations.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
onUpdateErrorNotice: function onUpdateErrorNotice( errorAnnotations ) {
|
||
|
|
control.saveButton.toggleClass( 'validation-blocked disabled', errorAnnotations.length > 0 );
|
||
|
|
control.updateErrorNotice( errorAnnotations );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
control.editor = wp.codeEditor.initialize( control.fields.content, settings );
|
||
|
|
|
||
|
|
// Improve the editor accessibility.
|
||
|
|
$( control.editor.codemirror.display.lineDiv )
|
||
|
|
.attr({
|
||
|
|
role: 'textbox',
|
||
|
|
'aria-multiline': 'true',
|
||
|
|
'aria-labelledby': control.fields.content[0].id + '-label',
|
||
|
|
'aria-describedby': 'editor-keyboard-trap-help-1 editor-keyboard-trap-help-2 editor-keyboard-trap-help-3 editor-keyboard-trap-help-4'
|
||
|
|
});
|
||
|
|
|
||
|
|
// Focus the editor when clicking on its label.
|
||
|
|
$( '#' + control.fields.content[0].id + '-label' ).on( 'click', function() {
|
||
|
|
control.editor.codemirror.focus();
|
||
|
|
});
|
||
|
|
|
||
|
|
control.fields.content.on( 'change', function() {
|
||
|
|
if ( this.value !== control.editor.codemirror.getValue() ) {
|
||
|
|
control.editor.codemirror.setValue( this.value );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
control.editor.codemirror.on( 'change', function() {
|
||
|
|
var value = control.editor.codemirror.getValue();
|
||
|
|
if ( value !== control.fields.content.val() ) {
|
||
|
|
control.fields.content.val( value ).trigger( 'change' );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Make sure the editor gets updated if the content was updated on the server (sanitization) but not updated in the editor since it was focused.
|
||
|
|
control.editor.codemirror.on( 'blur', function() {
|
||
|
|
if ( control.contentUpdateBypassed ) {
|
||
|
|
control.syncContainer.find( '.sync-input.content' ).trigger( 'change' );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Prevent hitting Esc from collapsing the widget control.
|
||
|
|
if ( wp.customize ) {
|
||
|
|
control.editor.codemirror.on( 'keydown', function onKeydown( codemirror, event ) {
|
||
|
|
var escKeyCode = 27;
|
||
|
|
if ( escKeyCode === event.keyCode ) {
|
||
|
|
event.stopPropagation();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Mapping of widget ID to instances of CustomHtmlWidgetControl subclasses.
|
||
|
|
*
|
||
|
|
* @type {Object.<string, wp.textWidgets.CustomHtmlWidgetControl>}
|
||
|
|
*/
|
||
|
|
component.widgetControls = {};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle widget being added or initialized for the first time at the widget-added event.
|
||
|
|
*
|
||
|
|
* @param {jQuery.Event} event - Event.
|
||
|
|
* @param {jQuery} widgetContainer - Widget container element.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
component.handleWidgetAdded = function handleWidgetAdded( event, widgetContainer ) {
|
||
|
|
var widgetForm, idBase, widgetControl, widgetId, animatedCheckDelay = 50, renderWhenAnimationDone, fieldContainer, syncContainer;
|
||
|
|
widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' ); // Note: '.form' appears in the customizer, whereas 'form' on the widgets admin screen.
|
||
|
|
|
||
|
|
idBase = widgetForm.find( '> .id_base' ).val();
|
||
|
|
if ( -1 === component.idBases.indexOf( idBase ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Prevent initializing already-added widgets.
|
||
|
|
widgetId = widgetForm.find( '.widget-id' ).val();
|
||
|
|
if ( component.widgetControls[ widgetId ] ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Create a container element for the widget control fields.
|
||
|
|
* This is inserted into the DOM immediately before the the .widget-content
|
||
|
|
* element because the contents of this element are essentially "managed"
|
||
|
|
* by PHP, where each widget update cause the entire element to be emptied
|
||
|
|
* and replaced with the rendered output of WP_Widget::form() which is
|
||
|
|
* sent back in Ajax request made to save/update the widget instance.
|
||
|
|
* To prevent a "flash of replaced DOM elements and re-initialized JS
|
||
|
|
* components", the JS template is rendered outside of the normal form
|
||
|
|
* container.
|
||
|
|
*/
|
||
|
|
fieldContainer = $( '<div></div>' );
|
||
|
|
syncContainer = widgetContainer.find( '.widget-content:first' );
|
||
|
|
syncContainer.before( fieldContainer );
|
||
|
|
|
||
|
|
widgetControl = new component.CustomHtmlWidgetControl({
|
||
|
|
el: fieldContainer,
|
||
|
|
syncContainer: syncContainer
|
||
|
|
});
|
||
|
|
|
||
|
|
component.widgetControls[ widgetId ] = widgetControl;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Render the widget once the widget parent's container finishes animating,
|
||
|
|
* as the widget-added event fires with a slideDown of the container.
|
||
|
|
* This ensures that the textarea is visible and the editor can be initialized.
|
||
|
|
*/
|
||
|
|
renderWhenAnimationDone = function() {
|
||
|
|
if ( ! ( wp.customize ? widgetContainer.parent().hasClass( 'expanded' ) : widgetContainer.hasClass( 'open' ) ) ) { // Core merge: The wp.customize condition can be eliminated with this change being in core: https://github.com/xwp/wordpress-develop/pull/247/commits/5322387d
|
||
|
|
setTimeout( renderWhenAnimationDone, animatedCheckDelay );
|
||
|
|
} else {
|
||
|
|
widgetControl.initializeEditor();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
renderWhenAnimationDone();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Setup widget in accessibility mode.
|
||
|
|
*
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
component.setupAccessibleMode = function setupAccessibleMode() {
|
||
|
|
var widgetForm, idBase, widgetControl, fieldContainer, syncContainer;
|
||
|
|
widgetForm = $( '.editwidget > form' );
|
||
|
|
if ( 0 === widgetForm.length ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
idBase = widgetForm.find( '> .widget-control-actions > .id_base' ).val();
|
||
|
|
if ( -1 === component.idBases.indexOf( idBase ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
fieldContainer = $( '<div></div>' );
|
||
|
|
syncContainer = widgetForm.find( '> .widget-inside' );
|
||
|
|
syncContainer.before( fieldContainer );
|
||
|
|
|
||
|
|
widgetControl = new component.CustomHtmlWidgetControl({
|
||
|
|
el: fieldContainer,
|
||
|
|
syncContainer: syncContainer
|
||
|
|
});
|
||
|
|
|
||
|
|
widgetControl.initializeEditor();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sync widget instance data sanitized from server back onto widget model.
|
||
|
|
*
|
||
|
|
* This gets called via the 'widget-updated' event when saving a widget from
|
||
|
|
* the widgets admin screen and also via the 'widget-synced' event when making
|
||
|
|
* a change to a widget in the customizer.
|
||
|
|
*
|
||
|
|
* @param {jQuery.Event} event - Event.
|
||
|
|
* @param {jQuery} widgetContainer - Widget container element.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
component.handleWidgetUpdated = function handleWidgetUpdated( event, widgetContainer ) {
|
||
|
|
var widgetForm, widgetId, widgetControl, idBase;
|
||
|
|
widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' );
|
||
|
|
|
||
|
|
idBase = widgetForm.find( '> .id_base' ).val();
|
||
|
|
if ( -1 === component.idBases.indexOf( idBase ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
widgetId = widgetForm.find( '> .widget-id' ).val();
|
||
|
|
widgetControl = component.widgetControls[ widgetId ];
|
||
|
|
if ( ! widgetControl ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
widgetControl.updateFields();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize functionality.
|
||
|
|
*
|
||
|
|
* This function exists to prevent the JS file from having to boot itself.
|
||
|
|
* When WordPress enqueues this script, it should have an inline script
|
||
|
|
* attached which calls wp.textWidgets.init().
|
||
|
|
*
|
||
|
|
* @param {object} settings - Options for code editor, exported from PHP.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
component.init = function init( settings ) {
|
||
|
|
var $document = $( document );
|
||
|
|
_.extend( component.codeEditorSettings, settings );
|
||
|
|
|
||
|
|
$document.on( 'widget-added', component.handleWidgetAdded );
|
||
|
|
$document.on( 'widget-synced widget-updated', component.handleWidgetUpdated );
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Manually trigger widget-added events for media widgets on the admin
|
||
|
|
* screen once they are expanded. The widget-added event is not triggered
|
||
|
|
* for each pre-existing widget on the widgets admin screen like it is
|
||
|
|
* on the customizer. Likewise, the customizer only triggers widget-added
|
||
|
|
* when the widget is expanded to just-in-time construct the widget form
|
||
|
|
* when it is actually going to be displayed. So the following implements
|
||
|
|
* the same for the widgets admin screen, to invoke the widget-added
|
||
|
|
* handler when a pre-existing media widget is expanded.
|
||
|
|
*/
|
||
|
|
$( function initializeExistingWidgetContainers() {
|
||
|
|
var widgetContainers;
|
||
|
|
if ( 'widgets' !== window.pagenow ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
widgetContainers = $( '.widgets-holder-wrap:not(#available-widgets)' ).find( 'div.widget' );
|
||
|
|
widgetContainers.one( 'click.toggle-widget-expanded', function toggleWidgetExpanded() {
|
||
|
|
var widgetContainer = $( this );
|
||
|
|
component.handleWidgetAdded( new jQuery.Event( 'widget-added' ), widgetContainer );
|
||
|
|
});
|
||
|
|
|
||
|
|
// Accessibility mode.
|
||
|
|
$( window ).on( 'load', function() {
|
||
|
|
component.setupAccessibleMode();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
return component;
|
||
|
|
})( jQuery );
|