import Delta from 'quill-delta';
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import Parchment from 'parchment';
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import Quill from '../core/quill';
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import logger from '../core/logger';
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import Module from '../core/module';
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let debug = logger('quill:toolbar');
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class Toolbar extends Module {
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constructor(quill, options) {
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super(quill, options);
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if (Array.isArray(this.options.container)) {
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let container = document.createElement('div');
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addControls(container, this.options.container);
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quill.container.parentNode.insertBefore(container, quill.container);
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this.container = container;
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} else if (typeof this.options.container === 'string') {
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this.container = document.querySelector(this.options.container);
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} else {
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this.container = this.options.container;
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}
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if (!(this.container instanceof HTMLElement)) {
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return debug.error('Container required for toolbar', this.options);
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}
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this.container.classList.add('ql-toolbar');
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this.controls = [];
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this.handlers = {};
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Object.keys(this.options.handlers).forEach((format) => {
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this.addHandler(format, this.options.handlers[format]);
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});
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[].forEach.call(this.container.querySelectorAll('button, select'), (input) => {
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this.attach(input);
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});
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this.quill.on(Quill.events.EDITOR_CHANGE, (type, range) => {
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if (type === Quill.events.SELECTION_CHANGE) {
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this.update(range);
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}
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});
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this.quill.on(Quill.events.SCROLL_OPTIMIZE, () => {
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let [range, ] = this.quill.selection.getRange(); // quill.getSelection triggers update
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this.update(range);
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});
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}
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addHandler(format, handler) {
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this.handlers[format] = handler;
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}
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attach(input) {
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let format = [].find.call(input.classList, (className) => {
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return className.indexOf('ql-') === 0;
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});
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if (!format) return;
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format = format.slice('ql-'.length);
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if (input.tagName === 'BUTTON') {
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input.setAttribute('type', 'button');
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}
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if (this.handlers[format] == null) {
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if (this.quill.scroll.whitelist != null && this.quill.scroll.whitelist[format] == null) {
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debug.warn('ignoring attaching to disabled format', format, input);
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return;
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}
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if (Parchment.query(format) == null) {
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debug.warn('ignoring attaching to nonexistent format', format, input);
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return;
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}
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}
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let eventName = input.tagName === 'SELECT' ? 'change' : 'click';
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input.addEventListener(eventName, (e) => {
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let value;
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if (input.tagName === 'SELECT') {
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if (input.selectedIndex < 0) return;
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let selected = input.options[input.selectedIndex];
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if (selected.hasAttribute('selected')) {
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value = false;
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} else {
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value = selected.value || false;
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}
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} else {
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if (input.classList.contains('ql-active')) {
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value = false;
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} else {
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value = input.value || !input.hasAttribute('value');
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}
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e.preventDefault();
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}
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this.quill.focus();
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let [range, ] = this.quill.selection.getRange();
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if (this.handlers[format] != null) {
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this.handlers[format].call(this, value);
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} else if (Parchment.query(format).prototype instanceof Parchment.Embed) {
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value = prompt(`Enter ${format}`);
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if (!value) return;
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this.quill.updateContents(new Delta()
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.retain(range.index)
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.delete(range.length)
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.insert({ [format]: value })
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, Quill.sources.USER);
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} else {
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this.quill.format(format, value, Quill.sources.USER);
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}
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this.update(range);
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});
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// TODO use weakmap
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this.controls.push([format, input]);
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}
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update(range) {
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let formats = range == null ? {} : this.quill.getFormat(range);
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this.controls.forEach(function(pair) {
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let [format, input] = pair;
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if (input.tagName === 'SELECT') {
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let option;
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if (range == null) {
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option = null;
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} else if (formats[format] == null) {
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option = input.querySelector('option[selected]');
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} else if (!Array.isArray(formats[format])) {
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let value = formats[format];
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if (typeof value === 'string') {
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value = value.replace(/\"/g, '\\"');
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}
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option = input.querySelector(`option[value="${value}"]`);
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}
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if (option == null) {
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input.value = ''; // TODO make configurable?
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input.selectedIndex = -1;
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} else {
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option.selected = true;
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}
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} else {
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if (range == null) {
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input.classList.remove('ql-active');
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} else if (input.hasAttribute('value')) {
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// both being null should match (default values)
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// '1' should match with 1 (headers)
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let isActive = formats[format] === input.getAttribute('value') ||
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(formats[format] != null && formats[format].toString() === input.getAttribute('value')) ||
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(formats[format] == null && !input.getAttribute('value'));
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input.classList.toggle('ql-active', isActive);
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} else {
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input.classList.toggle('ql-active', formats[format] != null);
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}
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}
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});
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}
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}
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Toolbar.DEFAULTS = {};
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function addButton(container, format, value) {
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let input = document.createElement('button');
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input.setAttribute('type', 'button');
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input.classList.add('ql-' + format);
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if (value != null) {
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input.value = value;
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}
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container.appendChild(input);
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}
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function addControls(container, groups) {
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if (!Array.isArray(groups[0])) {
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groups = [groups];
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}
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groups.forEach(function(controls) {
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let group = document.createElement('span');
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group.classList.add('ql-formats');
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controls.forEach(function(control) {
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if (typeof control === 'string') {
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addButton(group, control);
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} else {
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let format = Object.keys(control)[0];
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let value = control[format];
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if (Array.isArray(value)) {
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addSelect(group, format, value);
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} else {
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addButton(group, format, value);
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}
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}
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});
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container.appendChild(group);
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});
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}
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function addSelect(container, format, values) {
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let input = document.createElement('select');
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input.classList.add('ql-' + format);
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values.forEach(function(value) {
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let option = document.createElement('option');
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if (value !== false) {
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option.setAttribute('value', value);
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} else {
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option.setAttribute('selected', 'selected');
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}
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input.appendChild(option);
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});
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container.appendChild(input);
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}
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Toolbar.DEFAULTS = {
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container: null,
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handlers: {
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clean: function() {
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let range = this.quill.getSelection();
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if (range == null) return;
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if (range.length == 0) {
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let formats = this.quill.getFormat();
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Object.keys(formats).forEach((name) => {
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// Clean functionality in existing apps only clean inline formats
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if (Parchment.query(name, Parchment.Scope.INLINE) != null) {
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this.quill.format(name, false);
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}
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});
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} else {
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this.quill.removeFormat(range, Quill.sources.USER);
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}
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},
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direction: function(value) {
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let align = this.quill.getFormat()['align'];
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if (value === 'rtl' && align == null) {
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this.quill.format('align', 'right', Quill.sources.USER);
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} else if (!value && align === 'right') {
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this.quill.format('align', false, Quill.sources.USER);
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}
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this.quill.format('direction', value, Quill.sources.USER);
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},
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indent: function(value) {
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let range = this.quill.getSelection();
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let formats = this.quill.getFormat(range);
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let indent = parseInt(formats.indent || 0);
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if (value === '+1' || value === '-1') {
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let modifier = (value === '+1') ? 1 : -1;
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if (formats.direction === 'rtl') modifier *= -1;
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this.quill.format('indent', indent + modifier, Quill.sources.USER);
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}
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},
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link: function(value) {
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if (value === true) {
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value = prompt('Enter link URL:');
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}
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this.quill.format('link', value, Quill.sources.USER);
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},
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list: function(value) {
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let range = this.quill.getSelection();
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let formats = this.quill.getFormat(range);
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if (value === 'check') {
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if (formats['list'] === 'checked' || formats['list'] === 'unchecked') {
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this.quill.format('list', false, Quill.sources.USER);
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} else {
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this.quill.format('list', 'unchecked', Quill.sources.USER);
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}
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} else {
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this.quill.format('list', value, Quill.sources.USER);
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}
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}
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}
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}
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export { Toolbar as default, addControls };
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