mirror of
https://github.com/hodgef/simple-keyboard.git
synced 2025-03-13 14:41:08 +08:00
1577 lines
44 KiB
JavaScript
1577 lines
44 KiB
JavaScript
import "./Keyboard.css";
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// Services
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import { getDefaultLayout } from "../services/KeyboardLayout";
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import PhysicalKeyboard from "../services/PhysicalKeyboard";
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import Utilities from "../services/Utilities";
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/**
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* Root class for simple-keyboard
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* This class:
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* - Parses the options
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* - Renders the rows and buttons
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* - Handles button functionality
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*/
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class SimpleKeyboard {
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/**
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* Creates an instance of SimpleKeyboard
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* @param {Array} params If first parameter is a string, it is considered the container class. The second parameter is then considered the options object. If first parameter is an object, it is considered the options object.
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*/
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constructor(...params) {
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const { keyboardDOMClass, keyboardDOM, options = {} } = this.handleParams(
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params
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);
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/**
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* Initializing Utilities
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*/
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this.utilities = new Utilities({
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getOptions: this.getOptions,
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getCaretPosition: this.getCaretPosition,
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getCaretPositionEnd: this.getCaretPositionEnd,
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dispatch: this.dispatch
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});
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/**
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* Caret position
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*/
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this.caretPosition = null;
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/**
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* Caret position end
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*/
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this.caretPositionEnd = null;
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/**
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* Processing options
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*/
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this.keyboardDOM = keyboardDOM;
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/**
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* @type {object}
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* @property {object} layout Modify the keyboard layout.
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* @property {string} layoutName Specifies which layout should be used.
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* @property {object} display Replaces variable buttons (such as {bksp}) with a human-friendly name (e.g.: “backspace”).
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* @property {boolean} mergeDisplay By default, when you set the display property, you replace the default one. This setting merges them instead.
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* @property {string} theme A prop to add your own css classes to the keyboard wrapper. You can add multiple classes separated by a space.
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* @property {array} buttonTheme A prop to add your own css classes to one or several buttons.
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* @property {array} buttonAttributes A prop to add your own attributes to one or several buttons.
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* @property {boolean} debug Runs a console.log every time a key is pressed. Displays the buttons pressed and the current input.
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* @property {boolean} newLineOnEnter Specifies whether clicking the “ENTER” button will input a newline (\n) or not.
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* @property {boolean} tabCharOnTab Specifies whether clicking the “TAB” button will input a tab character (\t) or not.
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* @property {string} inputName Allows you to use a single simple-keyboard instance for several inputs.
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* @property {number} maxLength Restrains all of simple-keyboard inputs to a certain length. This should be used in addition to the input element’s maxlengthattribute.
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* @property {object} maxLength Restrains simple-keyboard’s individual inputs to a certain length. This should be used in addition to the input element’s maxlengthattribute.
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* @property {boolean} syncInstanceInputs When set to true, this option synchronizes the internal input of every simple-keyboard instance.
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* @property {boolean} physicalKeyboardHighlight Enable highlighting of keys pressed on physical keyboard.
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* @property {boolean} preventMouseDownDefault Calling preventDefault for the mousedown events keeps the focus on the input.
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* @property {boolean} stopMouseDownPropagation Stops pointer down events on simple-keyboard buttons from bubbling to parent elements.
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* @property {string} physicalKeyboardHighlightTextColor Define the text color that the physical keyboard highlighted key should have.
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* @property {string} physicalKeyboardHighlightBgColor Define the background color that the physical keyboard highlighted key should have.
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* @property {function(button: string):string} onKeyPress Executes the callback function on key press. Returns button layout name (i.e.: “{shift}”).
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* @property {function(input: string):string} onChange Executes the callback function on input change. Returns the current input’s string.
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* @property {function} onRender Executes the callback function every time simple-keyboard is rendered (e.g: when you change layouts).
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* @property {function} onInit Executes the callback function once simple-keyboard is rendered for the first time (on initialization).
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* @property {function(inputs: object):object} onChangeAll Executes the callback function on input change. Returns the input object with all defined inputs.
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* @property {boolean} useButtonTag Render buttons as a button element instead of a div element.
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* @property {boolean} disableCaretPositioning A prop to ensure characters are always be added/removed at the end of the string.
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* @property {object} inputPattern Restrains input(s) change to the defined regular expression pattern.
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* @property {boolean} useTouchEvents Instructs simple-keyboard to use touch events instead of click events.
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* @property {boolean} autoUseTouchEvents Enable useTouchEvents automatically when touch device is detected.
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* @property {boolean} useMouseEvents Opt out of PointerEvents handling, falling back to the prior mouse event logic.
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* @property {function} destroy Clears keyboard listeners and DOM elements.
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* @property {boolean} disableButtonHold Disable button hold action.
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* @property {function} onKeyReleased Executes the callback function on key release.
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* @property {array} modules Module classes to be loaded by simple-keyboard.
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*/
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this.options = options;
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this.options.layoutName = this.options.layoutName || "default";
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this.options.theme = this.options.theme || "hg-theme-default";
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this.options.inputName = this.options.inputName || "default";
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this.options.preventMouseDownDefault =
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this.options.preventMouseDownDefault || false;
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/**
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* @type {object} Classes identifying loaded plugins
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*/
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this.keyboardPluginClasses = "";
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/**
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* Bindings
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*/
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Utilities.bindMethods(SimpleKeyboard, this);
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/**
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* simple-keyboard uses a non-persistent internal input to keep track of the entered string (the variable `keyboard.input`).
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* This removes any dependency to input DOM elements. You can type and directly display the value in a div element, for example.
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* @example
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* // To get entered input
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* const input = keyboard.getInput();
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*
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* // To clear entered input.
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* keyboard.clearInput();
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*
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* @type {object}
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* @property {object} default Default SimpleKeyboard internal input.
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* @property {object} myInputName Example input that can be set through `options.inputName:"myInputName"`.
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*/
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this.input = {};
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this.input[this.options.inputName] = "";
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/**
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* @type {string} DOM class of the keyboard wrapper, normally "simple-keyboard" by default.
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*/
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this.keyboardDOMClass = keyboardDOMClass;
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/**
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* @type {object} Contains the DOM elements of every rendered button, the key being the button's layout name (e.g.: "{enter}").
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*/
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this.buttonElements = {};
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/**
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* Simple-keyboard Instances
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* This enables multiple simple-keyboard support with easier management
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*/
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if (!window["SimpleKeyboardInstances"])
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window["SimpleKeyboardInstances"] = {};
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this.currentInstanceName = this.utilities.camelCase(this.keyboardDOMClass);
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window["SimpleKeyboardInstances"][this.currentInstanceName] = this;
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/**
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* Instance vars
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*/
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this.allKeyboardInstances = window["SimpleKeyboardInstances"];
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this.keyboardInstanceNames = Object.keys(window["SimpleKeyboardInstances"]);
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this.isFirstKeyboardInstance =
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this.keyboardInstanceNames[0] === this.currentInstanceName;
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/**
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* Physical Keyboard support
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*/
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this.physicalKeyboard = new PhysicalKeyboard({
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dispatch: this.dispatch,
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getOptions: this.getOptions
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});
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/**
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* Rendering keyboard
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*/
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if (this.keyboardDOM) this.render();
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else {
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console.warn(`".${keyboardDOMClass}" was not found in the DOM.`);
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throw new Error("KEYBOARD_DOM_ERROR");
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}
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/**
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* Modules
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*/
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this.modules = {};
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this.loadModules();
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}
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/**
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* parseParams
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*/
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handleParams = params => {
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let keyboardDOMClass;
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let keyboardDOM;
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let options;
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/**
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* If first parameter is a string:
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* Consider it as an element's class
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*/
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if (typeof params[0] === "string") {
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keyboardDOMClass = params[0].split(".").join("");
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keyboardDOM = document.querySelector(`.${keyboardDOMClass}`);
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options = params[1];
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/**
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* If first parameter is an HTMLDivElement
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* Consider it as the keyboard DOM element
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*/
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} else if (params[0] instanceof HTMLDivElement) {
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/**
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* This element must have a class, otherwise throw
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*/
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if (!params[0].className) {
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console.warn("Any DOM element passed as parameter must have a class.");
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throw new Error("KEYBOARD_DOM_CLASS_ERROR");
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}
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keyboardDOMClass = params[0].className.split(" ")[0];
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keyboardDOM = params[0];
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options = params[1];
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/**
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* Otherwise, search for .simple-keyboard DOM element
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*/
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} else {
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keyboardDOMClass = "simple-keyboard";
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keyboardDOM = document.querySelector(`.${keyboardDOMClass}`);
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options = params[0];
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}
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return {
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keyboardDOMClass,
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keyboardDOM,
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options
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};
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};
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/**
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* Getters
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*/
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getOptions = () => this.options;
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getCaretPosition = () => this.caretPosition;
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getCaretPositionEnd = () => this.caretPositionEnd;
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/**
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* Setters
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*/
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setCaretPosition(position, endPosition) {
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this.caretPosition = position;
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this.caretPositionEnd = endPosition || position;
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}
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/**
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* Handles clicks made to keyboard buttons
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* @param {string} button The button's layout name.
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*/
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handleButtonClicked(button) {
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const debug = this.options.debug;
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/**
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* Ignoring placeholder buttons
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*/
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if (button === "{//}") return false;
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/**
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* Calling onKeyPress
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*/
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if (typeof this.options.onKeyPress === "function")
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this.options.onKeyPress(button);
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if (!this.input[this.options.inputName])
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this.input[this.options.inputName] = "";
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const updatedInput = this.utilities.getUpdatedInput(
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button,
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this.input[this.options.inputName],
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this.caretPosition,
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this.caretPositionEnd
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);
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if (
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// If input will change as a result of this button press
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this.input[this.options.inputName] !== updatedInput &&
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// This pertains to the "inputPattern" option:
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// If inputPattern isn't set
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(!this.options.inputPattern ||
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// Or, if it is set and if the pattern is valid - we proceed.
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(this.options.inputPattern && this.inputPatternIsValid(updatedInput)))
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) {
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/**
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* If maxLength and handleMaxLength yield true, halting
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*/
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if (
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this.options.maxLength &&
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this.utilities.handleMaxLength(this.input, updatedInput)
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) {
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return false;
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}
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this.input[this.options.inputName] = this.utilities.getUpdatedInput(
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button,
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this.input[this.options.inputName],
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this.caretPosition,
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this.caretPositionEnd,
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true
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);
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if (debug) console.log("Input changed:", this.input);
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if (this.options.debug) {
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console.log(
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"Caret at: ",
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this.getCaretPosition(),
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this.getCaretPositionEnd(),
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`(${this.keyboardDOMClass})`
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);
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}
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/**
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* Enforce syncInstanceInputs, if set
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*/
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if (this.options.syncInstanceInputs) this.syncInstanceInputs();
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/**
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* Calling onChange
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*/
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if (typeof this.options.onChange === "function")
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this.options.onChange(this.input[this.options.inputName]);
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/**
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* Calling onChangeAll
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*/
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if (typeof this.options.onChangeAll === "function")
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this.options.onChangeAll(this.input);
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}
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if (debug) {
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console.log("Key pressed:", button);
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}
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}
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/**
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* Handles button mousedown
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*/
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/* istanbul ignore next */
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handleButtonMouseDown(button, e) {
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/**
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* Handle event options
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*/
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if (this.options.preventMouseDownDefault) e.preventDefault();
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if (this.options.stopMouseDownPropagation) e.stopPropagation();
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/**
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* Add active class
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*/
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if (e) e.target.classList.add(this.activeButtonClass);
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if (this.holdInteractionTimeout) clearTimeout(this.holdInteractionTimeout);
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if (this.holdTimeout) clearTimeout(this.holdTimeout);
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/**
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* @type {boolean} Whether the mouse is being held onKeyPress
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*/
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this.isMouseHold = true;
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/**
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* @type {object} Time to wait until a key hold is detected
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*/
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if (!this.options.disableButtonHold) {
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this.holdTimeout = setTimeout(() => {
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if (
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(this.isMouseHold &&
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// TODO: This needs to be configurable through options
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((!button.includes("{") && !button.includes("}")) ||
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button === "{delete}" ||
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button === "{backspace}" ||
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button === "{bksp}" ||
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button === "{space}" ||
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button === "{tab}")) ||
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button === "{arrowright}" ||
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button === "{arrowleft}" ||
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button === "{arrowup}" ||
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button === "{arrowdown}"
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) {
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if (this.options.debug) console.log("Button held:", button);
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this.handleButtonHold(button, e);
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}
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clearTimeout(this.holdTimeout);
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}, 500);
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}
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}
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/**
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* Handles button mouseup
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*/
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handleButtonMouseUp(button) {
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this.dispatch(instance => {
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/**
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* Remove active class
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*/
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instance.recurseButtons(buttonElement => {
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buttonElement.classList.remove(this.activeButtonClass);
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});
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instance.isMouseHold = false;
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if (instance.holdInteractionTimeout)
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clearTimeout(instance.holdInteractionTimeout);
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});
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/**
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* Calling onKeyReleased
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*/
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if (button && typeof this.options.onKeyReleased === "function")
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this.options.onKeyReleased(button);
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}
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/**
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* Handles container mousedown
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*/
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handleKeyboardContainerMouseDown(e) {
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/**
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* Handle event options
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*/
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if (this.options.preventMouseDownDefault) e.preventDefault();
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}
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/**
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* Handles button hold
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*/
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/* istanbul ignore next */
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handleButtonHold(button) {
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if (this.holdInteractionTimeout) clearTimeout(this.holdInteractionTimeout);
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/**
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* @type {object} Timeout dictating the speed of key hold iterations
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*/
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this.holdInteractionTimeout = setTimeout(() => {
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if (this.isMouseHold) {
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this.handleButtonClicked(button);
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this.handleButtonHold(button);
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} else {
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clearTimeout(this.holdInteractionTimeout);
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}
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}, 100);
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}
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/**
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* Send a command to all simple-keyboard instances (if you have several instances).
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*/
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syncInstanceInputs() {
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this.dispatch(instance => {
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instance.replaceInput(this.input);
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instance.setCaretPosition(this.caretPosition, this.caretPositionEnd);
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});
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}
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/**
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* Clear the keyboard’s input.
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* @param {string} [inputName] optional - the internal input to select
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*/
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clearInput(inputName) {
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inputName = inputName || this.options.inputName;
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this.input[inputName] = "";
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/**
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* Reset caretPosition
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*/
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this.setCaretPosition(0);
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/**
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* Enforce syncInstanceInputs, if set
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*/
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if (this.options.syncInstanceInputs) this.syncInstanceInputs();
|
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}
|
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|
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/**
|
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* Get the keyboard’s input (You can also get it from the onChange prop).
|
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* @param {string} [inputName] optional - the internal input to select
|
||
*/
|
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getInput(inputName) {
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inputName = inputName || this.options.inputName;
|
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|
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/**
|
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* Enforce syncInstanceInputs, if set
|
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*/
|
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if (this.options.syncInstanceInputs) this.syncInstanceInputs();
|
||
|
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return this.input[inputName];
|
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}
|
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|
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/**
|
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* Set the keyboard’s input.
|
||
* @param {string} input the input value
|
||
* @param {string} inputName optional - the internal input to select
|
||
*/
|
||
setInput(input, inputName) {
|
||
inputName = inputName || this.options.inputName;
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this.input[inputName] = input;
|
||
|
||
/**
|
||
* Enforce syncInstanceInputs, if set
|
||
*/
|
||
if (this.options.syncInstanceInputs) this.syncInstanceInputs();
|
||
}
|
||
|
||
/**
|
||
* Replace the input object (`keyboard.input`)
|
||
* @param {object} inputObj The input object
|
||
*/
|
||
replaceInput(inputObj) {
|
||
this.input = inputObj;
|
||
}
|
||
|
||
/**
|
||
* Set new option or modify existing ones after initialization.
|
||
* @param {object} options The options to set
|
||
*/
|
||
setOptions(options = {}) {
|
||
const changedOptions = this.changedOptions(options);
|
||
this.options = Object.assign(this.options, options);
|
||
|
||
if (changedOptions.length) {
|
||
if (this.options.debug) {
|
||
console.log("changedOptions", changedOptions);
|
||
}
|
||
|
||
/**
|
||
* Some option changes require adjustments before re-render
|
||
*/
|
||
this.onSetOptions(options);
|
||
|
||
/**
|
||
* Rendering
|
||
*/
|
||
this.render();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Detecting changes to non-function options
|
||
* This allows us to ascertain whether a button re-render is needed
|
||
*/
|
||
changedOptions(newOptions) {
|
||
return Object.keys(newOptions).filter(
|
||
optionName =>
|
||
JSON.stringify(newOptions[optionName]) !==
|
||
JSON.stringify(this.options[optionName])
|
||
);
|
||
}
|
||
|
||
/**
|
||
* Executing actions depending on changed options
|
||
* @param {object} options The options to set
|
||
*/
|
||
onSetOptions(options) {
|
||
if (options.inputName) {
|
||
/**
|
||
* inputName changed. This requires a caretPosition reset
|
||
*/
|
||
// TODO: Review side-effects
|
||
if (this.options.debug) {
|
||
console.log("inputName changed. caretPosition reset.");
|
||
}
|
||
this.setCaretPosition(null);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Remove all keyboard rows and reset keyboard values.
|
||
* Used internally between re-renders.
|
||
*/
|
||
clear() {
|
||
this.keyboardDOM.innerHTML = "";
|
||
this.keyboardDOM.className = this.keyboardDOMClass;
|
||
this.buttonElements = {};
|
||
}
|
||
|
||
/**
|
||
* Send a command to all simple-keyboard instances at once (if you have multiple instances).
|
||
* @param {function(instance: object, key: string)} callback Function to run on every instance
|
||
*/
|
||
dispatch(callback) {
|
||
if (!window["SimpleKeyboardInstances"]) {
|
||
console.warn(
|
||
`SimpleKeyboardInstances is not defined. Dispatch cannot be called.`
|
||
);
|
||
throw new Error("INSTANCES_VAR_ERROR");
|
||
}
|
||
|
||
return Object.keys(window["SimpleKeyboardInstances"]).forEach(key => {
|
||
callback(window["SimpleKeyboardInstances"][key], key);
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Adds/Modifies an entry to the `buttonTheme`. Basically a way to add a class to a button.
|
||
* @param {string} buttons List of buttons to select (separated by a space).
|
||
* @param {string} className Classes to give to the selected buttons (separated by space).
|
||
*/
|
||
addButtonTheme(buttons, className) {
|
||
if (!className || !buttons) return false;
|
||
|
||
buttons.split(" ").forEach(button => {
|
||
className.split(" ").forEach(classNameItem => {
|
||
if (!this.options.buttonTheme) this.options.buttonTheme = [];
|
||
|
||
let classNameFound = false;
|
||
|
||
/**
|
||
* If class is already defined, we add button to class definition
|
||
*/
|
||
this.options.buttonTheme.map(buttonTheme => {
|
||
if (buttonTheme.class.split(" ").includes(classNameItem)) {
|
||
classNameFound = true;
|
||
|
||
const buttonThemeArray = buttonTheme.buttons.split(" ");
|
||
if (!buttonThemeArray.includes(button)) {
|
||
classNameFound = true;
|
||
buttonThemeArray.push(button);
|
||
buttonTheme.buttons = buttonThemeArray.join(" ");
|
||
}
|
||
}
|
||
return buttonTheme;
|
||
});
|
||
|
||
/**
|
||
* If class is not defined, we create a new entry
|
||
*/
|
||
if (!classNameFound) {
|
||
this.options.buttonTheme.push({
|
||
class: classNameItem,
|
||
buttons: buttons
|
||
});
|
||
}
|
||
});
|
||
});
|
||
|
||
this.render();
|
||
}
|
||
|
||
/**
|
||
* Removes/Amends an entry to the `buttonTheme`. Basically a way to remove a class previously added to a button through buttonTheme or addButtonTheme.
|
||
* @param {string} buttons List of buttons to select (separated by a space).
|
||
* @param {string} className Classes to give to the selected buttons (separated by space).
|
||
*/
|
||
removeButtonTheme(buttons, className) {
|
||
/**
|
||
* When called with empty parameters, remove all button themes
|
||
*/
|
||
if (!buttons && !className) {
|
||
this.options.buttonTheme = [];
|
||
this.render();
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* If buttons are passed and buttonTheme has items
|
||
*/
|
||
if (
|
||
buttons &&
|
||
Array.isArray(this.options.buttonTheme) &&
|
||
this.options.buttonTheme.length
|
||
) {
|
||
const buttonArray = buttons.split(" ");
|
||
buttonArray.forEach(button => {
|
||
this.options.buttonTheme.map((buttonTheme, index) => {
|
||
/**
|
||
* If className is set, we affect the buttons only for that class
|
||
* Otherwise, we afect all classes
|
||
*/
|
||
if (
|
||
(className && className.includes(buttonTheme.class)) ||
|
||
!className
|
||
) {
|
||
const filteredButtonArray = buttonTheme.buttons
|
||
.split(" ")
|
||
.filter(item => item !== button);
|
||
|
||
/**
|
||
* If buttons left, return them, otherwise, remove button Theme
|
||
*/
|
||
if (filteredButtonArray.length) {
|
||
buttonTheme.buttons = filteredButtonArray.join(" ");
|
||
} else {
|
||
this.options.buttonTheme.splice(index, 1);
|
||
buttonTheme = null;
|
||
}
|
||
}
|
||
|
||
return buttonTheme;
|
||
});
|
||
});
|
||
|
||
this.render();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Get the DOM Element of a button. If there are several buttons with the same name, an array of the DOM Elements is returned.
|
||
* @param {string} button The button layout name to select
|
||
*/
|
||
getButtonElement(button) {
|
||
let output;
|
||
|
||
const buttonArr = this.buttonElements[button];
|
||
if (buttonArr) {
|
||
if (buttonArr.length > 1) {
|
||
output = buttonArr;
|
||
} else {
|
||
output = buttonArr[0];
|
||
}
|
||
}
|
||
|
||
return output;
|
||
}
|
||
|
||
/**
|
||
* This handles the "inputPattern" option
|
||
* by checking if the provided inputPattern passes
|
||
*/
|
||
inputPatternIsValid(inputVal) {
|
||
const inputPatternRaw = this.options.inputPattern;
|
||
let inputPattern;
|
||
|
||
/**
|
||
* Check if input pattern is global or targeted to individual inputs
|
||
*/
|
||
if (inputPatternRaw instanceof RegExp) {
|
||
inputPattern = inputPatternRaw;
|
||
} else {
|
||
inputPattern = inputPatternRaw[this.options.inputName];
|
||
}
|
||
|
||
if (inputPattern && inputVal) {
|
||
const didInputMatch = inputPattern.test(inputVal);
|
||
|
||
if (this.options.debug) {
|
||
console.log(
|
||
`inputPattern ("${inputPattern}"): ${
|
||
didInputMatch ? "passed" : "did not pass!"
|
||
}`
|
||
);
|
||
}
|
||
|
||
return didInputMatch;
|
||
} else {
|
||
/**
|
||
* inputPattern doesn't seem to be set for the current input, or input is empty. Pass.
|
||
*/
|
||
return true;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Handles simple-keyboard event listeners
|
||
*/
|
||
setEventListeners() {
|
||
const { useTouchEvents, useMouseEvents } = this.options;
|
||
|
||
/**
|
||
* Only first instance should set the event listeners
|
||
*/
|
||
if (this.isFirstKeyboardInstance || !this.allKeyboardInstances) {
|
||
if (this.options.debug) {
|
||
console.log(`Caret handling started (${this.keyboardDOMClass})`);
|
||
}
|
||
|
||
/**
|
||
* Event Listeners
|
||
*/
|
||
document.onkeyup = this.handleKeyUp;
|
||
document.onkeydown = this.handleKeyDown;
|
||
|
||
/**
|
||
* Pointer events
|
||
*/
|
||
if (
|
||
this.utilities.pointerEventsSupported() &&
|
||
!useTouchEvents &&
|
||
!useMouseEvents
|
||
) {
|
||
document.onpointerdown = this.handlePointerDown;
|
||
document.onpointerup = this.handlePointerUp;
|
||
document.onpointercancel = this.handlePointerUp;
|
||
|
||
this.keyboardDOM.onpointerdown = this.handleKeyboardContainerMouseDown;
|
||
|
||
/**
|
||
* Touch events
|
||
*/
|
||
} else if (useTouchEvents) {
|
||
document.ontouchstart = this.handlePointerDown;
|
||
document.ontouchend = this.handlePointerUp;
|
||
document.ontouchcancel = this.handlePointerUp;
|
||
|
||
this.keyboardDOM.ontouchstart = this.handleKeyboardContainerMouseDown;
|
||
|
||
/**
|
||
* Mouse events
|
||
*/
|
||
} else if (!useTouchEvents) {
|
||
document.onmousedown = this.handlePointerDown;
|
||
document.onmouseup = this.handlePointerUp;
|
||
|
||
this.keyboardDOM.onmousedown = this.handleKeyboardContainerMouseDown;
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Event Handler: KeyUp
|
||
*/
|
||
handleKeyUp(event) {
|
||
this.caretEventHandler(event);
|
||
|
||
if (this.options.physicalKeyboardHighlight) {
|
||
this.physicalKeyboard.handleHighlightKeyUp(event);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Event Handler: KeyDown
|
||
*/
|
||
handleKeyDown(event) {
|
||
if (this.options.physicalKeyboardHighlight) {
|
||
this.physicalKeyboard.handleHighlightKeyDown(event);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Event Handler: PointerDown
|
||
*/
|
||
handlePointerDown(event) {
|
||
this.caretEventHandler(event);
|
||
}
|
||
|
||
/**
|
||
* Event Handler: PointerUp
|
||
*/
|
||
handlePointerUp(event) {
|
||
this.handleButtonMouseUp();
|
||
this.caretEventHandler(event);
|
||
}
|
||
|
||
/**
|
||
* Called by {@link setEventListeners} when an event that warrants a cursor position update is triggered
|
||
*/
|
||
caretEventHandler(event) {
|
||
if (this.options.disableCaretPositioning) {
|
||
this.setCaretPosition(null);
|
||
return;
|
||
}
|
||
|
||
let targetTagName;
|
||
|
||
if (event.target.tagName) {
|
||
targetTagName = event.target.tagName.toLowerCase();
|
||
}
|
||
|
||
/* istanbul ignore next */
|
||
this.dispatch(instance => {
|
||
const isKeyboard =
|
||
event.target === instance.keyboardDOM ||
|
||
(event.target && instance.keyboardDOM.contains(event.target));
|
||
|
||
// if (!this.isMouseHold) {
|
||
// instance.isMouseHold = false;
|
||
// }
|
||
|
||
if (targetTagName === "textarea" || targetTagName === "input") {
|
||
/**
|
||
* Tracks current cursor position
|
||
* As keys are pressed, text will be added/removed at that position within the input.
|
||
*/
|
||
instance.setCaretPosition(
|
||
event.target.selectionStart,
|
||
event.target.selectionEnd
|
||
);
|
||
|
||
if (instance.options.debug) {
|
||
console.log(
|
||
"Caret at: ",
|
||
instance.getCaretPosition(),
|
||
instance.getCaretPositionEnd(),
|
||
event && event.target.tagName.toLowerCase(),
|
||
`(${instance.keyboardDOMClass})`
|
||
);
|
||
}
|
||
|
||
// TODO: Review side-effects
|
||
} else if (!isKeyboard) {
|
||
instance.setCaretPosition(null);
|
||
}
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Execute an operation on each button
|
||
*/
|
||
recurseButtons(fn) {
|
||
if (!fn) return false;
|
||
|
||
Object.keys(this.buttonElements).forEach(buttonName =>
|
||
this.buttonElements[buttonName].forEach(fn)
|
||
);
|
||
}
|
||
|
||
/**
|
||
* Destroy keyboard listeners and DOM elements
|
||
*/
|
||
destroy() {
|
||
if (this.options.debug)
|
||
console.log(
|
||
`Destroying simple-keyboard instance: ${this.currentInstanceName}`
|
||
);
|
||
|
||
/**
|
||
* Remove buttons
|
||
*/
|
||
let deleteButton = buttonElement => {
|
||
buttonElement.onpointerdown = null;
|
||
buttonElement.onpointerup = null;
|
||
buttonElement.onpointercancel = null;
|
||
buttonElement.ontouchstart = null;
|
||
buttonElement.ontouchend = null;
|
||
buttonElement.ontouchcancel = null;
|
||
buttonElement.onclick = null;
|
||
buttonElement.onmousedown = null;
|
||
buttonElement.onmouseup = null;
|
||
|
||
buttonElement.remove();
|
||
buttonElement = null;
|
||
};
|
||
|
||
this.recurseButtons(deleteButton);
|
||
deleteButton = null;
|
||
|
||
/**
|
||
* Remove wrapper events
|
||
*/
|
||
this.keyboardDOM.onpointerdown = null;
|
||
this.keyboardDOM.ontouchstart = null;
|
||
this.keyboardDOM.onmousedown = null;
|
||
|
||
/**
|
||
* Clearing keyboard wrapper
|
||
*/
|
||
this.clear();
|
||
|
||
/**
|
||
* Remove timouts
|
||
*/
|
||
/* istanbul ignore next */
|
||
if (this.holdInteractionTimeout) clearTimeout(this.holdInteractionTimeout);
|
||
/* istanbul ignore next */
|
||
if (this.holdTimeout) clearTimeout(this.holdTimeout);
|
||
|
||
/**
|
||
* Remove instance
|
||
*/
|
||
window["SimpleKeyboardInstances"][this.currentInstanceName] = null;
|
||
delete window["SimpleKeyboardInstances"][this.currentInstanceName];
|
||
|
||
/**
|
||
* Removing document listeners if there are no more instances
|
||
*/
|
||
if (!Object.keys(window["SimpleKeyboardInstances"]).length) {
|
||
/**
|
||
* Remove document listeners
|
||
*/
|
||
document.onkeydown = null;
|
||
document.onkeyup = null;
|
||
|
||
document.onpointerdown = null;
|
||
document.onpointerup = null;
|
||
|
||
document.onmousedown = null;
|
||
document.onmouseup = null;
|
||
|
||
document.ontouchstart = null;
|
||
document.ontouchend = null;
|
||
document.ontouchcancel = null;
|
||
|
||
if (this.options.debug) {
|
||
console.log(
|
||
"Destroy: No instances remaining. Document listeners removed",
|
||
window["SimpleKeyboardInstances"]
|
||
);
|
||
}
|
||
} else {
|
||
if (this.options.debug) {
|
||
console.log(
|
||
"Destroy: Instances remaining! Document listeners not removed",
|
||
window["SimpleKeyboardInstances"]
|
||
);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Reset initialized flag
|
||
*/
|
||
this.initialized = false;
|
||
}
|
||
|
||
/**
|
||
* Process buttonTheme option
|
||
*/
|
||
getButtonThemeClasses(button) {
|
||
const buttonTheme = this.options.buttonTheme;
|
||
let buttonClasses = [];
|
||
|
||
if (Array.isArray(buttonTheme)) {
|
||
buttonTheme.forEach(themeObj => {
|
||
if (
|
||
themeObj.class &&
|
||
typeof themeObj.class === "string" &&
|
||
themeObj.buttons &&
|
||
typeof themeObj.buttons === "string"
|
||
) {
|
||
const themeObjClasses = themeObj.class.split(" ");
|
||
const themeObjButtons = themeObj.buttons.split(" ");
|
||
|
||
if (themeObjButtons.includes(button)) {
|
||
buttonClasses = [...buttonClasses, ...themeObjClasses];
|
||
}
|
||
} else {
|
||
console.warn(
|
||
`Incorrect "buttonTheme". Please check the documentation.`,
|
||
themeObj
|
||
);
|
||
}
|
||
});
|
||
}
|
||
|
||
return buttonClasses;
|
||
}
|
||
|
||
/**
|
||
* Process buttonAttributes option
|
||
*/
|
||
setDOMButtonAttributes(button, callback) {
|
||
const buttonAttributes = this.options.buttonAttributes;
|
||
|
||
if (Array.isArray(buttonAttributes)) {
|
||
buttonAttributes.forEach(attrObj => {
|
||
if (
|
||
attrObj.attribute &&
|
||
typeof attrObj.attribute === "string" &&
|
||
attrObj.value &&
|
||
typeof attrObj.value === "string" &&
|
||
attrObj.buttons &&
|
||
typeof attrObj.buttons === "string"
|
||
) {
|
||
const attrObjButtons = attrObj.buttons.split(" ");
|
||
|
||
if (attrObjButtons.includes(button)) {
|
||
callback(attrObj.attribute, attrObj.value);
|
||
}
|
||
} else {
|
||
console.warn(
|
||
`Incorrect "buttonAttributes". Please check the documentation.`,
|
||
attrObj
|
||
);
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
onTouchDeviceDetected() {
|
||
/**
|
||
* Processing autoTouchEvents
|
||
*/
|
||
this.processAutoTouchEvents();
|
||
|
||
/**
|
||
* Disabling contextual window on touch devices
|
||
*/
|
||
this.disableContextualWindow();
|
||
}
|
||
|
||
/**
|
||
* Disabling contextual window for hg-button
|
||
*/
|
||
/* istanbul ignore next */
|
||
disableContextualWindow() {
|
||
window.oncontextmenu = event => {
|
||
if (event.target.classList.contains("hg-button")) {
|
||
event.preventDefault();
|
||
event.stopPropagation();
|
||
return false;
|
||
}
|
||
};
|
||
}
|
||
|
||
/**
|
||
* Process autoTouchEvents option
|
||
*/
|
||
processAutoTouchEvents() {
|
||
if (this.options.autoUseTouchEvents) {
|
||
this.options.useTouchEvents = true;
|
||
|
||
if (this.options.debug) {
|
||
console.log(
|
||
`autoUseTouchEvents: Touch device detected, useTouchEvents enabled.`
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Executes the callback function once simple-keyboard is rendered for the first time (on initialization).
|
||
*/
|
||
onInit() {
|
||
if (this.options.debug) {
|
||
console.log(`${this.keyboardDOMClass} Initialized`);
|
||
}
|
||
|
||
/**
|
||
* setEventListeners
|
||
*/
|
||
this.setEventListeners();
|
||
|
||
if (typeof this.options.onInit === "function") this.options.onInit();
|
||
}
|
||
|
||
/**
|
||
* Executes the callback function before a simple-keyboard render.
|
||
*/
|
||
beforeFirstRender() {
|
||
/**
|
||
* Performing actions when touch device detected
|
||
*/
|
||
if (this.utilities.isTouchDevice()) {
|
||
this.onTouchDeviceDetected();
|
||
}
|
||
|
||
if (typeof this.options.beforeFirstRender === "function")
|
||
this.options.beforeFirstRender();
|
||
|
||
/**
|
||
* Notify about PointerEvents usage
|
||
*/
|
||
if (
|
||
this.isFirstKeyboardInstance &&
|
||
this.utilities.pointerEventsSupported() &&
|
||
!this.options.useTouchEvents &&
|
||
!this.options.useMouseEvents
|
||
) {
|
||
if (this.options.debug) {
|
||
console.log("Using PointerEvents as it is supported by this browser");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Notify about touch events usage
|
||
*/
|
||
if (this.options.useTouchEvents) {
|
||
if (this.options.debug) {
|
||
console.log(
|
||
"useTouchEvents has been enabled. Only touch events will be used."
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Executes the callback function before a simple-keyboard render.
|
||
*/
|
||
beforeRender() {
|
||
if (typeof this.options.beforeRender === "function")
|
||
this.options.beforeRender();
|
||
}
|
||
|
||
/**
|
||
* Executes the callback function every time simple-keyboard is rendered (e.g: when you change layouts).
|
||
*/
|
||
onRender() {
|
||
if (typeof this.options.onRender === "function") this.options.onRender();
|
||
}
|
||
|
||
/**
|
||
* Executes the callback function once all modules have been loaded
|
||
*/
|
||
onModulesLoaded() {
|
||
if (typeof this.options.onModulesLoaded === "function")
|
||
this.options.onModulesLoaded(this);
|
||
}
|
||
|
||
/**
|
||
* Register module
|
||
*/
|
||
registerModule = (name, initCallback) => {
|
||
if (!this.modules[name]) this.modules[name] = {};
|
||
|
||
initCallback(this.modules[name]);
|
||
};
|
||
|
||
/**
|
||
* Load modules
|
||
*/
|
||
loadModules() {
|
||
if (Array.isArray(this.options.modules)) {
|
||
this.options.modules.forEach(KeyboardModule => {
|
||
const keyboardModule = new KeyboardModule();
|
||
|
||
/* istanbul ignore next */
|
||
if (
|
||
keyboardModule.constructor.name &&
|
||
keyboardModule.constructor.name !== "Function"
|
||
) {
|
||
const classStr = `module-${this.utilities.camelCase(
|
||
keyboardModule.constructor.name
|
||
)}`;
|
||
this.keyboardPluginClasses =
|
||
this.keyboardPluginClasses + ` ${classStr}`;
|
||
}
|
||
|
||
keyboardModule.init(this);
|
||
});
|
||
|
||
this.keyboardPluginClasses =
|
||
this.keyboardPluginClasses + " modules-loaded";
|
||
|
||
this.render();
|
||
this.onModulesLoaded();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Get module prop
|
||
*/
|
||
getModuleProp(name, prop) {
|
||
if (!this.modules[name]) return false;
|
||
|
||
return this.modules[name][prop];
|
||
}
|
||
|
||
/**
|
||
* getModulesList
|
||
*/
|
||
getModulesList() {
|
||
return Object.keys(this.modules);
|
||
}
|
||
|
||
/**
|
||
* Parse Row DOM containers
|
||
*/
|
||
parseRowDOMContainers(
|
||
rowDOM,
|
||
rowIndex,
|
||
containerStartIndexes,
|
||
containerEndIndexes
|
||
) {
|
||
const rowDOMArray = Array.from(rowDOM.children);
|
||
let removedElements = 0;
|
||
|
||
if (rowDOMArray.length) {
|
||
containerStartIndexes.forEach((startIndex, arrIndex) => {
|
||
const endIndex = containerEndIndexes[arrIndex];
|
||
|
||
/**
|
||
* If there exists a respective end index
|
||
* if end index comes after start index
|
||
*/
|
||
if (!endIndex || !(endIndex > startIndex)) {
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* Updated startIndex, endIndex
|
||
* This is since the removal of buttons to place a single button container
|
||
* results in a modified array size
|
||
*/
|
||
const updated_startIndex = startIndex - removedElements;
|
||
const updated_endIndex = endIndex - removedElements;
|
||
|
||
/**
|
||
* Create button container
|
||
*/
|
||
const containerDOM = document.createElement("div");
|
||
containerDOM.className += "hg-button-container";
|
||
const containerUID = `${this.options.layoutName}-r${rowIndex}c${arrIndex}`;
|
||
containerDOM.setAttribute("data-skUID", containerUID);
|
||
|
||
/**
|
||
* Taking elements due to be inserted into container
|
||
*/
|
||
const containedElements = rowDOMArray.splice(
|
||
updated_startIndex,
|
||
updated_endIndex - updated_startIndex + 1
|
||
);
|
||
removedElements = updated_endIndex - updated_startIndex;
|
||
|
||
/**
|
||
* Inserting elements to container
|
||
*/
|
||
containedElements.forEach(element => containerDOM.appendChild(element));
|
||
|
||
/**
|
||
* Adding container at correct position within rowDOMArray
|
||
*/
|
||
rowDOMArray.splice(updated_startIndex, 0, containerDOM);
|
||
|
||
/**
|
||
* Clearing old rowDOM children structure
|
||
*/
|
||
rowDOM.innerHTML = "";
|
||
|
||
/**
|
||
* Appending rowDOM new children list
|
||
*/
|
||
rowDOMArray.forEach(element => rowDOM.appendChild(element));
|
||
|
||
if (this.options.debug) {
|
||
console.log(
|
||
"rowDOMContainer",
|
||
containedElements,
|
||
updated_startIndex,
|
||
updated_endIndex,
|
||
removedElements + 1
|
||
);
|
||
}
|
||
});
|
||
}
|
||
|
||
return rowDOM;
|
||
}
|
||
|
||
/**
|
||
* getKeyboardClassString
|
||
*/
|
||
getKeyboardClassString = (...baseDOMClasses) => {
|
||
const keyboardClasses = [this.keyboardDOMClass, ...baseDOMClasses].filter(
|
||
DOMClass => !!DOMClass
|
||
);
|
||
|
||
return keyboardClasses.join(" ");
|
||
};
|
||
|
||
/**
|
||
* Renders rows and buttons as per options
|
||
*/
|
||
render() {
|
||
/**
|
||
* Clear keyboard
|
||
*/
|
||
this.clear();
|
||
|
||
/**
|
||
* Calling beforeFirstRender
|
||
*/
|
||
if (!this.initialized) {
|
||
this.beforeFirstRender();
|
||
}
|
||
|
||
/**
|
||
* Calling beforeRender
|
||
*/
|
||
this.beforeRender();
|
||
|
||
const layoutClass = `hg-layout-${this.options.layoutName}`;
|
||
const layout = this.options.layout || getDefaultLayout();
|
||
const useTouchEvents = this.options.useTouchEvents || false;
|
||
const useTouchEventsClass = useTouchEvents ? "hg-touch-events" : "";
|
||
const useMouseEvents = this.options.useMouseEvents || false;
|
||
const disableRowButtonContainers = this.options.disableRowButtonContainers;
|
||
|
||
/**
|
||
* Adding themeClass, layoutClass to keyboardDOM
|
||
*/
|
||
this.keyboardDOM.className = this.getKeyboardClassString(
|
||
this.options.theme,
|
||
layoutClass,
|
||
this.keyboardPluginClasses,
|
||
useTouchEventsClass
|
||
);
|
||
|
||
/**
|
||
* Iterating through each row
|
||
*/
|
||
layout[this.options.layoutName].forEach((row, rIndex) => {
|
||
const rowArray = row.split(" ");
|
||
|
||
/**
|
||
* Creating empty row
|
||
*/
|
||
let rowDOM = document.createElement("div");
|
||
rowDOM.className += "hg-row";
|
||
|
||
/**
|
||
* Tracking container indicators in rows
|
||
*/
|
||
const containerStartIndexes = [];
|
||
const containerEndIndexes = [];
|
||
|
||
/**
|
||
* Iterating through each button in row
|
||
*/
|
||
rowArray.forEach((button, bIndex) => {
|
||
/**
|
||
* Check if button has a container indicator
|
||
*/
|
||
const buttonHasContainerStart =
|
||
!disableRowButtonContainers &&
|
||
typeof button === "string" &&
|
||
button.length > 1 &&
|
||
button.indexOf("[") === 0;
|
||
|
||
const buttonHasContainerEnd =
|
||
!disableRowButtonContainers &&
|
||
typeof button === "string" &&
|
||
button.length > 1 &&
|
||
button.indexOf("]") === button.length - 1;
|
||
|
||
/**
|
||
* Save container start index, if applicable
|
||
*/
|
||
if (buttonHasContainerStart) {
|
||
containerStartIndexes.push(bIndex);
|
||
|
||
/**
|
||
* Removing indicator
|
||
*/
|
||
button = button.replace(/\[/g, "");
|
||
}
|
||
|
||
if (buttonHasContainerEnd) {
|
||
containerEndIndexes.push(bIndex);
|
||
|
||
/**
|
||
* Removing indicator
|
||
*/
|
||
button = button.replace(/\]/g, "");
|
||
}
|
||
|
||
/**
|
||
* Processing button options
|
||
*/
|
||
const fctBtnClass = this.utilities.getButtonClass(button);
|
||
const buttonDisplayName = this.utilities.getButtonDisplayName(
|
||
button,
|
||
this.options.display,
|
||
this.options.mergeDisplay
|
||
);
|
||
|
||
/**
|
||
* Creating button
|
||
*/
|
||
const buttonType = this.options.useButtonTag ? "button" : "div";
|
||
const buttonDOM = document.createElement(buttonType);
|
||
buttonDOM.className += `hg-button ${fctBtnClass}`;
|
||
|
||
/**
|
||
* Adding buttonTheme
|
||
*/
|
||
buttonDOM.classList.add(...this.getButtonThemeClasses(button));
|
||
|
||
/**
|
||
* Adding buttonAttributes
|
||
*/
|
||
this.setDOMButtonAttributes(button, (attribute, value) => {
|
||
buttonDOM.setAttribute(attribute, value);
|
||
});
|
||
|
||
this.activeButtonClass = "hg-activeButton";
|
||
|
||
/**
|
||
* Handle button click event
|
||
*/
|
||
/* istanbul ignore next */
|
||
if (
|
||
this.utilities.pointerEventsSupported() &&
|
||
!useTouchEvents &&
|
||
!useMouseEvents
|
||
) {
|
||
/**
|
||
* Handle PointerEvents
|
||
*/
|
||
buttonDOM.onpointerdown = e => {
|
||
this.handleButtonClicked(button);
|
||
this.handleButtonMouseDown(button, e);
|
||
};
|
||
buttonDOM.onpointerup = () => {
|
||
this.handleButtonMouseUp(button);
|
||
};
|
||
buttonDOM.onpointercancel = () => {
|
||
this.handleButtonMouseUp(button);
|
||
};
|
||
} else {
|
||
/**
|
||
* Fallback for browsers not supporting PointerEvents
|
||
*/
|
||
if (useTouchEvents) {
|
||
/**
|
||
* Handle touch events
|
||
*/
|
||
buttonDOM.ontouchstart = e => {
|
||
this.handleButtonClicked(button);
|
||
this.handleButtonMouseDown(button, e);
|
||
};
|
||
buttonDOM.ontouchend = () => {
|
||
this.handleButtonMouseUp(button);
|
||
};
|
||
buttonDOM.ontouchcancel = () => {
|
||
this.handleButtonMouseUp(button);
|
||
};
|
||
} else {
|
||
/**
|
||
* Handle mouse events
|
||
*/
|
||
buttonDOM.onclick = () => {
|
||
this.handleButtonClicked(button);
|
||
};
|
||
buttonDOM.onmousedown = e => {
|
||
this.handleButtonMouseDown(button, e);
|
||
};
|
||
buttonDOM.onmouseup = () => {
|
||
this.handleButtonMouseUp(button);
|
||
};
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Adding identifier
|
||
*/
|
||
buttonDOM.setAttribute("data-skBtn", button);
|
||
|
||
/**
|
||
* Adding unique id
|
||
* Since there's no limit on spawning same buttons, the unique id ensures you can style every button
|
||
*/
|
||
const buttonUID = `${this.options.layoutName}-r${rIndex}b${bIndex}`;
|
||
buttonDOM.setAttribute("data-skBtnUID", buttonUID);
|
||
|
||
/**
|
||
* Adding button label to button
|
||
*/
|
||
const buttonSpanDOM = document.createElement("span");
|
||
buttonSpanDOM.innerHTML = buttonDisplayName;
|
||
buttonDOM.appendChild(buttonSpanDOM);
|
||
|
||
/**
|
||
* Adding to buttonElements
|
||
*/
|
||
if (!this.buttonElements[button]) this.buttonElements[button] = [];
|
||
|
||
this.buttonElements[button].push(buttonDOM);
|
||
|
||
/**
|
||
* Appending button to row
|
||
*/
|
||
rowDOM.appendChild(buttonDOM);
|
||
});
|
||
|
||
/**
|
||
* Parse containers in row
|
||
*/
|
||
rowDOM = this.parseRowDOMContainers(
|
||
rowDOM,
|
||
rIndex,
|
||
containerStartIndexes,
|
||
containerEndIndexes
|
||
);
|
||
|
||
/**
|
||
* Appending row to keyboard
|
||
*/
|
||
this.keyboardDOM.appendChild(rowDOM);
|
||
});
|
||
|
||
/**
|
||
* Calling onRender
|
||
*/
|
||
this.onRender();
|
||
|
||
if (!this.initialized) {
|
||
/**
|
||
* Ensures that onInit and beforeFirstRender are only called once per instantiation
|
||
*/
|
||
this.initialized = true;
|
||
|
||
/**
|
||
* Calling onInit
|
||
*/
|
||
this.onInit();
|
||
}
|
||
}
|
||
}
|
||
|
||
export default SimpleKeyboard;
|