WordPress/wp-admin/js/theme-plugin-editor.js

326 lines
8.2 KiB
JavaScript

/* eslint no-magic-numbers: ["error", { "ignore": [-1, 0, 1] }] */
if ( ! window.wp ) {
window.wp = {};
}
wp.themePluginEditor = (function( $ ) {
'use strict';
var component = {
l10n: {
lintError: {
singular: '',
plural: ''
},
saveAlert: ''
},
codeEditor: {},
instance: null,
noticeElements: {},
dirty: false,
lintErrors: []
};
/**
* Initialize component.
*
* @since 4.9.0
*
* @param {jQuery} form - Form element.
* @param {object} settings - Settings.
* @param {object|boolean} settings.codeEditor - Code editor settings (or `false` if syntax highlighting is disabled).
* @returns {void}
*/
component.init = function init( form, settings ) {
component.form = form;
if ( settings ) {
$.extend( component, settings );
}
component.noticeTemplate = wp.template( 'wp-file-editor-notice' );
component.noticesContainer = component.form.find( '.editor-notices' );
component.submitButton = component.form.find( ':input[name=submit]' );
component.spinner = component.form.find( '.submit .spinner' );
component.form.on( 'submit', component.submit );
component.textarea = component.form.find( '#newcontent' );
component.textarea.on( 'change', component.onChange );
if ( false !== component.codeEditor ) {
/*
* Defer adding notices until after DOM ready as workaround for WP Admin injecting
* its own managed dismiss buttons and also to prevent the editor from showing a notice
* when the file had linting errors to begin with.
*/
_.defer( function() {
component.initCodeEditor();
} );
}
$( window ).on( 'beforeunload', function() {
if ( component.dirty ) {
return component.l10n.saveAlert;
}
return undefined;
} );
};
/**
* Callback for when a change happens.
*
* @since 4.9.0
* @returns {void}
*/
component.onChange = function() {
component.dirty = true;
component.removeNotice( 'file_saved' );
};
/**
* Submit file via Ajax.
*
* @since 4.9.0
* @param {jQuery.Event} event - Event.
* @returns {void}
*/
component.submit = function( event ) {
var data = {}, request;
event.preventDefault(); // Prevent form submission in favor of Ajax below.
$.each( component.form.serializeArray(), function() {
data[ this.name ] = this.value;
} );
// Use value from codemirror if present.
if ( component.instance ) {
data.newcontent = component.instance.codemirror.getValue();
}
if ( component.isSaving ) {
return;
}
// Scroll ot the line that has the error.
if ( component.lintErrors.length ) {
component.instance.codemirror.setCursor( component.lintErrors[0].from.line );
return;
}
component.isSaving = true;
component.textarea.prop( 'readonly', true );
if ( component.instance ) {
component.instance.codemirror.setOption( 'readOnly', true );
}
component.spinner.addClass( 'is-active' );
request = wp.ajax.post( 'edit-theme-plugin-file', data );
// Remove previous save notice before saving.
if ( component.lastSaveNoticeCode ) {
component.removeNotice( component.lastSaveNoticeCode );
}
request.done( function ( response ) {
component.lastSaveNoticeCode = 'file_saved';
component.addNotice({
code: component.lastSaveNoticeCode,
type: 'success',
message: response.message,
dismissible: true
});
component.dirty = false;
} );
request.fail( function ( response ) {
var notice = $.extend(
{
code: 'save_error'
},
response,
{
type: 'error',
dismissible: true
}
);
component.lastSaveNoticeCode = notice.code;
component.addNotice( notice );
} );
request.always( function() {
component.spinner.removeClass( 'is-active' );
component.isSaving = false;
component.textarea.prop( 'readonly', false );
if ( component.instance ) {
component.instance.codemirror.setOption( 'readOnly', false );
}
} );
};
/**
* Add notice.
*
* @since 4.9.0
*
* @param {object} notice - Notice.
* @param {string} notice.code - Code.
* @param {string} notice.type - Type.
* @param {string} notice.message - Message.
* @param {boolean} [notice.dismissible=false] - Dismissible.
* @param {Function} [notice.onDismiss] - Callback for when a user dismisses the notice.
* @returns {jQuery} Notice element.
*/
component.addNotice = function( notice ) {
var noticeElement;
if ( ! notice.code ) {
throw new Error( 'Missing code.' );
}
// Only let one notice of a given type be displayed at a time.
component.removeNotice( notice.code );
noticeElement = $( component.noticeTemplate( notice ) );
noticeElement.hide();
noticeElement.find( '.notice-dismiss' ).on( 'click', function() {
component.removeNotice( notice.code );
if ( notice.onDismiss ) {
notice.onDismiss( notice );
}
} );
wp.a11y.speak( notice.message );
component.noticesContainer.append( noticeElement );
noticeElement.slideDown( 'fast' );
component.noticeElements[ notice.code ] = noticeElement;
return noticeElement;
};
/**
* Remove notice.
*
* @since 4.9.0
*
* @param {string} code - Notice code.
* @returns {boolean} Whether a notice was removed.
*/
component.removeNotice = function( code ) {
if ( component.noticeElements[ code ] ) {
component.noticeElements[ code ].slideUp( 'fast', function() {
$( this ).remove();
} );
delete component.noticeElements[ code ];
return true;
}
return false;
};
/**
* Initialize code editor.
*
* @since 4.9.0
* @returns {void}
*/
component.initCodeEditor = function initCodeEditor() {
var codeEditorSettings, editor;
codeEditorSettings = $.extend( {}, component.codeEditor );
/**
* Handle tabbing to the field before the editor.
*
* @since 4.9.0
*
* @returns {void}
*/
codeEditorSettings.onTabPrevious = function() {
$( '#templateside' ).find( ':tabbable' ).last().focus();
};
/**
* Handle tabbing to the field after the editor.
*
* @since 4.9.0
*
* @returns {void}
*/
codeEditorSettings.onTabNext = function() {
$( '#template' ).find( ':tabbable:not(.CodeMirror-code)' ).first().focus();
};
/**
* Handle change to the linting errors.
*
* @since 4.9.0
*
* @param {Array} errors - List of linting errors.
* @returns {void}
*/
codeEditorSettings.onChangeLintingErrors = function( errors ) {
component.lintErrors = errors;
// Only disable the button in onUpdateErrorNotice when there are errors so users can still feel they can click the button.
if ( 0 === errors.length ) {
component.submitButton.toggleClass( 'disabled', false );
}
};
/**
* Update error notice.
*
* @since 4.9.0
*
* @param {Array} errorAnnotations - Error annotations.
* @returns {void}
*/
codeEditorSettings.onUpdateErrorNotice = function onUpdateErrorNotice( errorAnnotations ) {
var message, noticeElement;
component.submitButton.toggleClass( 'disabled', errorAnnotations.length > 0 );
if ( 0 !== errorAnnotations.length ) {
if ( 1 === errorAnnotations.length ) {
message = component.l10n.lintError.singular.replace( '%d', '1' );
} else {
message = component.l10n.lintError.plural.replace( '%d', String( errorAnnotations.length ) );
}
noticeElement = component.addNotice({
code: 'lint_errors',
type: 'error',
message: message,
dismissible: false
});
noticeElement.find( 'input[type=checkbox]' ).on( 'click', function() {
codeEditorSettings.onChangeLintingErrors( [] );
component.removeNotice( 'lint_errors' );
} );
} else {
component.removeNotice( 'lint_errors' );
}
};
editor = wp.codeEditor.initialize( $( '#newcontent' ), codeEditorSettings );
editor.codemirror.on( 'change', component.onChange );
// Improve the editor accessibility.
$( editor.codemirror.display.lineDiv )
.attr({
role: 'textbox',
'aria-multiline': 'true',
'aria-labelledby': 'theme-plugin-editor-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.
$( '#theme-plugin-editor-label' ).on( 'click', function() {
editor.codemirror.focus();
});
component.instance = editor;
};
return component;
})( jQuery );