139 lines
3.2 KiB
JavaScript
139 lines
3.2 KiB
JavaScript
/**
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** ==============================
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** O O O OOOO
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** O O O O O O
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** O O O O O O
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** OOOO OOOO O OOO OOOO
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** O O O O O O O
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** O O O O O O O
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** OOOO OOOO O O OOOO
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** ==============================
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** Dr. Stefan Bosse http://www.bsslab.de
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**
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** COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
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** BY THE AUTHOR(S).
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** THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
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** MODIFIED, OR OTHERWISE USED IN A CONTEXT
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** OUTSIDE OF THE SOFTWARE SYSTEM.
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**
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** $AUTHORS: Christopher Jeffrey, Stefan Bosse
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** $INITIAL: (C) 2013-2015, Christopher Jeffrey and contributors
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** $MODIFIED: by sbosse (2017-2021)
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** $REVESIO: 1.4.1
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**
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** $INFO:
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**
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** checkbox.js - checkbox element for blessed
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**
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** Usage:
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**
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** var obj = blessed.checkbox({
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** checked: options.value||false,
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** left: options.left,
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** right : options.right,
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** top: options.top||0,
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** mouse: true,
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** inputOnFocus: true,
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** height: 1,
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** text:options.text||'empty'
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** });
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** screen.append(obj);
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** obj.on('check',function () {});
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**
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** Events:
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** 'check' 'uncheck' 'select'
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**
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**
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** $ENDOFINFO
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*/
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/**
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* Modules
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*/
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var Comp = Require('com/compat');
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var Node = Require('term/widgets/node');
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var Input = Require('term/widgets/input');
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/**
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* Checkbox
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*/
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function Checkbox(options) {
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var self = this;
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if (!instanceOf(this,Node)) {
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return new Checkbox(options);
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}
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options = options || {};
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Input.call(this, options);
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this.text = options.content || options.text || '';
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this.checked = this.value = options.checked || false;
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this.on('keypress', function(ch, key) {
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if (key.name === 'enter' || key.name === 'space') {
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self.toggle();
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self.screen.render();
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}
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});
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if (options.mouse) {
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this.on('click', function() {
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self.toggle();
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self.screen.render();
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});
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}
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this.on('focus', function() {
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var lpos = self.lpos;
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if (!lpos) return;
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self.screen.program.lsaveCursor('checkbox');
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self.screen.program.cup(lpos.yi, lpos.xi + 1);
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self.screen.program.showCursor();
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});
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this.on('blur', function() {
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self.screen.program.lrestoreCursor('checkbox', true);
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});
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}
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//Checkbox.prototype.__proto__ = Input.prototype;
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inheritPrototype(Checkbox,Input);
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Checkbox.prototype.type = 'checkbox';
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Checkbox.prototype.render = function() {
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this.clearPos(true);
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this.setContent('[' + (this.checked ? 'x' : ' ') + '] ' + this.text, true);
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return this._render();
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};
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Checkbox.prototype.check = function() {
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if (this.checked) return;
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this.checked = this.value = true;
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this.emit('check',this);
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this.emit('select',true);
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};
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Checkbox.prototype.uncheck = function() {
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if (!this.checked) return;
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this.checked = this.value = false;
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this.emit('uncheck',this);
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this.emit('select',false);
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};
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Checkbox.prototype.toggle = function() {
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return this.checked
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? this.uncheck()
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: this.check();
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};
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/**
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* Expose
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*/
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module.exports = Checkbox;
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