@ckeditor/ckeditor5-table
Version:
Table feature for CKEditor 5.
320 lines (319 loc) • 13.1 kB
JavaScript
/**
* @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module table/tableproperties/tablepropertiesui
*/
import { Plugin } from 'ckeditor5/src/core';
import { ButtonView, ContextualBalloon, clickOutsideHandler, getLocalizedColorOptions, normalizeColorOptions } from 'ckeditor5/src/ui';
import { debounce } from 'lodash-es';
import TablePropertiesView from './ui/tablepropertiesview';
import tableProperties from './../../theme/icons/table-properties.svg';
import { colorFieldValidator, getLocalizedColorErrorText, getLocalizedLengthErrorText, lengthFieldValidator, lineWidthFieldValidator, defaultColors } from '../utils/ui/table-properties';
import { getTableWidgetAncestor } from '../utils/ui/widget';
import { getBalloonTablePositionData, repositionContextualBalloon } from '../utils/ui/contextualballoon';
import { getNormalizedDefaultProperties } from '../utils/table-properties';
const ERROR_TEXT_TIMEOUT = 500;
// Map of view properties and related commands.
const propertyToCommandMap = {
borderStyle: 'tableBorderStyle',
borderColor: 'tableBorderColor',
borderWidth: 'tableBorderWidth',
backgroundColor: 'tableBackgroundColor',
width: 'tableWidth',
height: 'tableHeight',
alignment: 'tableAlignment'
};
/**
* The table properties UI plugin. It introduces the `'tableProperties'` button
* that opens a form allowing to specify visual styling of an entire table.
*
* It uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.
*/
export default class TablePropertiesUI extends Plugin {
/**
* @inheritDoc
*/
static get requires() {
return [ContextualBalloon];
}
/**
* @inheritDoc
*/
static get pluginName() {
return 'TablePropertiesUI';
}
/**
* @inheritDoc
*/
constructor(editor) {
super(editor);
/**
* The properties form view displayed inside the balloon.
*/
this.view = null;
editor.config.define('table.tableProperties', {
borderColors: defaultColors,
backgroundColors: defaultColors
});
}
/**
* @inheritDoc
*/
init() {
const editor = this.editor;
const t = editor.t;
this._defaultTableProperties = getNormalizedDefaultProperties(editor.config.get('table.tableProperties.defaultProperties'), {
includeAlignmentProperty: true
});
this._balloon = editor.plugins.get(ContextualBalloon);
editor.ui.componentFactory.add('tableProperties', locale => {
const view = new ButtonView(locale);
view.set({
label: t('Table properties'),
icon: tableProperties,
tooltip: true
});
this.listenTo(view, 'execute', () => this._showView());
const commands = Object.values(propertyToCommandMap)
.map(commandName => editor.commands.get(commandName));
view.bind('isEnabled').toMany(commands, 'isEnabled', (...areEnabled) => (areEnabled.some(isCommandEnabled => isCommandEnabled)));
return view;
});
}
/**
* @inheritDoc
*/
destroy() {
super.destroy();
// Destroy created UI components as they are not automatically destroyed.
// See https://github.com/ckeditor/ckeditor5/issues/1341.
if (this.view) {
this.view.destroy();
}
}
/**
* Creates the {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} instance.
*
* @returns The table properties form view instance.
*/
_createPropertiesView() {
const editor = this.editor;
const config = editor.config.get('table.tableProperties');
const borderColorsConfig = normalizeColorOptions(config.borderColors);
const localizedBorderColors = getLocalizedColorOptions(editor.locale, borderColorsConfig);
const backgroundColorsConfig = normalizeColorOptions(config.backgroundColors);
const localizedBackgroundColors = getLocalizedColorOptions(editor.locale, backgroundColorsConfig);
const view = new TablePropertiesView(editor.locale, {
borderColors: localizedBorderColors,
backgroundColors: localizedBackgroundColors,
defaultTableProperties: this._defaultTableProperties
});
const t = editor.t;
// Render the view so its #element is available for the clickOutsideHandler.
view.render();
this.listenTo(view, 'submit', () => {
this._hideView();
});
this.listenTo(view, 'cancel', () => {
// https://github.com/ckeditor/ckeditor5/issues/6180
if (this._undoStepBatch.operations.length) {
editor.execute('undo', this._undoStepBatch);
}
this._hideView();
});
// Close the balloon on Esc key press.
view.keystrokes.set('Esc', (data, cancel) => {
this._hideView();
cancel();
});
// Close on click outside of balloon panel element.
clickOutsideHandler({
emitter: view,
activator: () => this._isViewInBalloon,
contextElements: [this._balloon.view.element],
callback: () => this._hideView()
});
const colorErrorText = getLocalizedColorErrorText(t);
const lengthErrorText = getLocalizedLengthErrorText(t);
// Create the "UI -> editor data" binding.
// These listeners update the editor data (via table commands) when any observable
// property of the view has changed. They also validate the value and display errors in the UI
// when necessary. This makes the view live, which means the changes are
// visible in the editing as soon as the user types or changes fields' values.
view.on('change:borderStyle', this._getPropertyChangeCallback('tableBorderStyle'));
view.on('change:borderColor', this._getValidatedPropertyChangeCallback({
viewField: view.borderColorInput,
commandName: 'tableBorderColor',
errorText: colorErrorText,
validator: colorFieldValidator
}));
view.on('change:borderWidth', this._getValidatedPropertyChangeCallback({
viewField: view.borderWidthInput,
commandName: 'tableBorderWidth',
errorText: lengthErrorText,
validator: lineWidthFieldValidator
}));
view.on('change:backgroundColor', this._getValidatedPropertyChangeCallback({
viewField: view.backgroundInput,
commandName: 'tableBackgroundColor',
errorText: colorErrorText,
validator: colorFieldValidator
}));
view.on('change:width', this._getValidatedPropertyChangeCallback({
viewField: view.widthInput,
commandName: 'tableWidth',
errorText: lengthErrorText,
validator: lengthFieldValidator
}));
view.on('change:height', this._getValidatedPropertyChangeCallback({
viewField: view.heightInput,
commandName: 'tableHeight',
errorText: lengthErrorText,
validator: lengthFieldValidator
}));
view.on('change:alignment', this._getPropertyChangeCallback('tableAlignment'));
return view;
}
/**
* In this method the "editor data -> UI" binding is happening.
*
* When executed, this method obtains selected table property values from various table commands
* and passes them to the {@link #view}.
*
* This way, the UI stays up–to–date with the editor data.
*/
_fillViewFormFromCommandValues() {
const commands = this.editor.commands;
const borderStyleCommand = commands.get('tableBorderStyle');
Object.entries(propertyToCommandMap)
.map(([property, commandName]) => {
const propertyKey = property;
const defaultValue = this._defaultTableProperties[propertyKey] || '';
return [propertyKey, (commands.get(commandName).value || defaultValue)];
})
.forEach(([property, value]) => {
// Do not set the `border-color` and `border-width` fields if `border-style:none`.
if ((property === 'borderColor' || property === 'borderWidth') && borderStyleCommand.value === 'none') {
return;
}
this.view.set(property, value);
});
this._isReady = true;
}
/**
* Shows the {@link #view} in the {@link #_balloon}.
*
* **Note**: Each time a view is shown, the new {@link #_undoStepBatch} is created that contains
* all changes made to the document when the view is visible, allowing a single undo step
* for all of them.
*/
_showView() {
const editor = this.editor;
if (!this.view) {
this.view = this._createPropertiesView();
}
this.listenTo(editor.ui, 'update', () => {
this._updateView();
});
// Update the view with the model values.
this._fillViewFormFromCommandValues();
this._balloon.add({
view: this.view,
position: getBalloonTablePositionData(editor)
});
// Create a new batch. Clicking "Cancel" will undo this batch.
this._undoStepBatch = editor.model.createBatch();
// Basic a11y.
this.view.focus();
}
/**
* Removes the {@link #view} from the {@link #_balloon}.
*/
_hideView() {
const editor = this.editor;
this.stopListening(editor.ui, 'update');
this._isReady = false;
// Blur any input element before removing it from DOM to prevent issues in some browsers.
// See https://github.com/ckeditor/ckeditor5/issues/1501.
this.view.saveButtonView.focus();
this._balloon.remove(this.view);
// Make sure the focus is not lost in the process by putting it directly
// into the editing view.
this.editor.editing.view.focus();
}
/**
* Repositions the {@link #_balloon} or hides the {@link #view} if a table is no longer selected.
*/
_updateView() {
const editor = this.editor;
const viewDocument = editor.editing.view.document;
if (!getTableWidgetAncestor(viewDocument.selection)) {
this._hideView();
}
else if (this._isViewVisible) {
repositionContextualBalloon(editor, 'table');
}
}
/**
* Returns `true` when the {@link #view} is the visible in the {@link #_balloon}.
*/
get _isViewVisible() {
return !!this.view && this._balloon.visibleView === this.view;
}
/**
* Returns `true` when the {@link #view} is in the {@link #_balloon}.
*/
get _isViewInBalloon() {
return !!this.view && this._balloon.hasView(this.view);
}
/**
* Creates a callback that when executed upon {@link #view view's} property change
* executes a related editor command with the new property value.
*
* If new value will be set to the default value, the command will not be executed.
*
* @param commandName The command that will be executed.
*/
_getPropertyChangeCallback(commandName) {
return (evt, propertyName, newValue) => {
// Do not execute the command on initial call (opening the table properties view).
if (!this._isReady) {
return;
}
this.editor.execute(commandName, {
value: newValue,
batch: this._undoStepBatch
});
};
}
/**
* Creates a callback that when executed upon {@link #view view's} property change:
* * executes a related editor command with the new property value if the value is valid,
* * or sets the error text next to the invalid field, if the value did not pass the validation.
*/
_getValidatedPropertyChangeCallback(options) {
const { commandName, viewField, validator, errorText } = options;
const setErrorTextDebounced = debounce(() => {
viewField.errorText = errorText;
}, ERROR_TEXT_TIMEOUT);
return (evt, propertyName, newValue) => {
setErrorTextDebounced.cancel();
// Do not execute the command on initial call (opening the table properties view).
if (!this._isReady) {
return;
}
if (validator(newValue)) {
this.editor.execute(commandName, {
value: newValue,
batch: this._undoStepBatch
});
viewField.errorText = null;
}
else {
setErrorTextDebounced();
}
};
}
}