mirror of
https://github.com/codex-team/editor.js
synced 2024-05-27 02:52:35 +02:00
349 lines
8.8 KiB
TypeScript
349 lines
8.8 KiB
TypeScript
import Module from '../../__module';
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import $ from '../../dom';
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import _ from '../../utils';
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import {BlockToolConstructable, ToolboxConfig} from '../../../../types';
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/**
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* @class Toolbox
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* @classdesc Holder for Tools
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*
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* @typedef {Toolbox} Toolbox
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* @property {Boolean} opened - opening state
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* @property {Object} nodes - Toolbox nodes
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* @property {Object} CSS - CSS class names
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*
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*/
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export default class Toolbox extends Module {
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private static LEAF_DIRECTIONS = {
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RIGHT: 'right',
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LEFT: 'left',
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};
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/**
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* Opening state
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* @type {boolean}
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*/
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public opened: boolean = false;
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/**
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* HTMLElements used for Toolbox UI
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*/
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public nodes: {
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toolbox: HTMLElement,
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buttons: HTMLElement[],
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} = {
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toolbox: null,
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buttons: [],
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};
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/**
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* Active button index
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* -1 equals no chosen Tool
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* @type {number}
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*/
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private activeButtonIndex: number = -1;
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/**
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* How many tools displayed in Toolbox
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* @type {number}
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*/
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private displayedToolsCount: number = 0;
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/**
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* CSS styles
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* @return {{toolbox: string, toolboxButton: string, toolboxOpened: string}}
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*/
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static get CSS() {
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return {
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toolbox: 'ce-toolbox',
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toolboxButton: 'ce-toolbox__button',
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toolboxButtonActive : 'ce-toolbox__button--active',
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toolboxOpened: 'ce-toolbox--opened',
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};
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}
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/**
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* Makes the Toolbox
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*/
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public make(): void {
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this.nodes.toolbox = $.make('div', Toolbox.CSS.toolbox);
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$.append(this.Editor.Toolbar.nodes.content, this.nodes.toolbox);
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this.addTools();
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}
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/**
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* Toolbox Tool's button click handler
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*
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* @param {MouseEvent|KeyboardEvent} event
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* @param {string} toolName
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*/
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public toolButtonActivate(event: MouseEvent|KeyboardEvent, toolName: string): void {
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const tool = this.Editor.Tools.toolsClasses[toolName] as BlockToolConstructable;
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this.insertNewBlock(tool, toolName);
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}
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/**
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* Open Toolbox with Tools
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*/
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public open(): void {
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if (this.isEmpty) {
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return;
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}
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this.nodes.toolbox.classList.add(Toolbox.CSS.toolboxOpened);
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this.opened = true;
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}
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/**
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* Close Toolbox
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*/
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public close(): void {
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this.nodes.toolbox.classList.remove(Toolbox.CSS.toolboxOpened);
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this.opened = false;
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/** remove active item pointer */
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this.activeButtonIndex = -1;
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const activeButton = this.nodes.toolbox.querySelector(`.${Toolbox.CSS.toolboxButtonActive}`);
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if (activeButton) {
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activeButton.classList.remove(Toolbox.CSS.toolboxButtonActive);
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}
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}
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/**
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* Close Toolbox
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*/
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public toggle(): void {
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if (!this.opened) {
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this.open();
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} else {
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this.close();
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}
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}
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/**
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* Leaf
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* flip through the toolbox items
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* @param {String} direction - leaf direction, right is default
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*/
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public leaf(direction: string = Toolbox.LEAF_DIRECTIONS.RIGHT): void {
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const childNodes = this.nodes.toolbox.childNodes;
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/**
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* If activeButtonIndex === -1 then we have no chosen Tool in Toolbox
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*/
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if (this.activeButtonIndex === -1) {
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/**
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* Normalize "previous" Tool index depending on direction.
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* We need to do this to highlight "first" Tool correctly
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*
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* Order of Tools: [0] [1] ... [n - 1]
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* [0 = n] because of: n % n = 0 % n
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*
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* Direction 'right': for [0] the [n - 1] is a previous index
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* [n - 1] -> [0]
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*
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* Direction 'left': for [n - 1] the [0] is a previous index
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* [n - 1] <- [0]
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*
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* @type {number}
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*/
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this.activeButtonIndex = direction === Toolbox.LEAF_DIRECTIONS.RIGHT ? -1 : 0;
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} else {
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/**
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* If we have chosen Tool then remove highlighting
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*/
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(childNodes[this.activeButtonIndex] as HTMLElement).classList.remove(Toolbox.CSS.toolboxButtonActive);
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}
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/**
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* Count index for next Tool
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*/
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if (direction === Toolbox.LEAF_DIRECTIONS.RIGHT) {
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/**
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* If we go right then choose next (+1) Tool
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* @type {number}
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*/
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this.activeButtonIndex = (this.activeButtonIndex + 1) % childNodes.length;
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} else {
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/**
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* If we go left then choose previous (-1) Tool
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* Before counting module we need to add length before because of "The JavaScript Modulo Bug"
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* @type {number}
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*/
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this.activeButtonIndex = (childNodes.length + this.activeButtonIndex - 1) % childNodes.length;
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}
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/**
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* Highlight new chosen Tool
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*/
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(childNodes[this.activeButtonIndex] as HTMLElement).classList.add(Toolbox.CSS.toolboxButtonActive);
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}
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/**
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* get tool name when it is selected
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* In case when nothing selection returns null
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*
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* @return {String|null}
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*/
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public get getActiveTool(): string {
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const childNodes = this.nodes.toolbox.childNodes;
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if (this.activeButtonIndex === -1) {
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return null;
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}
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return (childNodes[this.activeButtonIndex] as HTMLElement).dataset.tool;
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}
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/**
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* Returns True if Toolbox is Empty and nothing to show
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* @return {boolean}
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*/
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public get isEmpty(): boolean {
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return this.displayedToolsCount === 0;
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}
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/**
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* Iterates available tools and appends them to the Toolbox
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*/
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private addTools(): void {
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const tools = this.Editor.Tools.available;
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for (const toolName in tools) {
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if (tools.hasOwnProperty(toolName)) {
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this.addTool(toolName, tools[toolName] as BlockToolConstructable);
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}
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}
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}
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/**
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* Append Tool to the Toolbox
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*
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* @param {string} toolName - tool name
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* @param {BlockToolConstructable} tool - tool class
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*/
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private addTool(toolName: string, tool: BlockToolConstructable): void {
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const api = this.Editor.Tools.apiSettings;
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const toolToolboxSettings = tool[api.TOOLBOX];
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/**
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* Skip tools that don't pass 'toolbox' property
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*/
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if (_.isEmpty(toolToolboxSettings)) {
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return;
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}
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if (toolToolboxSettings && !toolToolboxSettings.icon) {
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_.log('Toolbar icon is missed. Tool %o skipped', 'warn', toolName);
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return;
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}
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/**
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* @todo Add checkup for the render method
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*/
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// if (typeof tool.render !== 'function') {
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// _.log('render method missed. Tool %o skipped', 'warn', tool);
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// return;
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// }
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const {toolbox: userToolboxSettings = {} as ToolboxConfig} = this.Editor.Tools.getToolSettings(toolName);
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const button = $.make('li', [ Toolbox.CSS.toolboxButton ], {
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title: userToolboxSettings.title || toolToolboxSettings.title || toolName,
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});
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button.dataset.tool = toolName;
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button.innerHTML = userToolboxSettings.icon || toolToolboxSettings.icon;
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$.append(this.nodes.toolbox, button);
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this.nodes.toolbox.appendChild(button);
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this.nodes.buttons.push(button);
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/**
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* Add click listener
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*/
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this.Editor.Listeners.add(button, 'click', (event: KeyboardEvent|MouseEvent) => {
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this.toolButtonActivate(event, toolName);
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});
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/**
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* Enable shortcut
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*/
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const toolSettings = this.Editor.Tools.getToolSettings(toolName);
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if (toolSettings && toolSettings[this.Editor.Tools.apiSettings.SHORTCUT]) {
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this.enableShortcut(tool, toolName, toolSettings[this.Editor.Tools.apiSettings.SHORTCUT]);
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}
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/** Increment Tools count */
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this.displayedToolsCount++;
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}
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/**
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* Enable shortcut Block Tool implemented shortcut
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* @param {BlockToolConstructable} tool - Tool class
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* @param {String} toolName - Tool name
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* @param {String} shortcut - shortcut according to the ShortcutData Module format
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*/
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private enableShortcut(tool: BlockToolConstructable, toolName: string, shortcut: string) {
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this.Editor.Shortcuts.add({
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name: shortcut,
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handler: (event: KeyboardEvent) => {
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event.preventDefault();
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this.insertNewBlock(tool, toolName);
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},
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});
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}
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/**
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* Inserts new block
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* Can be called when button clicked on Toolbox or by ShortcutData
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*
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* @param {BlockToolConstructable} tool - Tool Class
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* @param {String} toolName - Tool name
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*/
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private insertNewBlock(tool: BlockToolConstructable, toolName: string) {
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const {BlockManager, Caret} = this.Editor;
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/**
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* @type {Block}
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*/
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const {currentBlock} = BlockManager;
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let newBlock;
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if (currentBlock.isEmpty) {
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newBlock = BlockManager.replace(toolName);
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} else {
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newBlock = BlockManager.insert(toolName);
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}
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/**
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* Apply callback before inserting html
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*/
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newBlock.call('appendCallback', {});
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this.Editor.Caret.setToBlock(newBlock);
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/** If new block doesn't contain inpus, insert new paragraph above */
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if (newBlock.inputs.length === 0) {
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if (newBlock === BlockManager.lastBlock) {
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BlockManager.insertAtEnd();
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Caret.setToBlock(BlockManager.lastBlock);
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} else {
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Caret.setToBlock(BlockManager.nextBlock);
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}
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}
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/**
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* close toolbar when node is changed
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*/
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this.Editor.Toolbar.close();
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}
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}
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