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odoo.define('point_of_sale.keyboard', function (require) {
"use strict";
var Widget = require('web.Widget');
// ---------- OnScreen Keyboard Widget ----------
// A Widget that displays an onscreen keyboard.
// There are two options when creating the widget :
//
// * 'keyboard_model' : 'simple' (default) | 'full'
// The 'full' emulates a PC keyboard, while 'simple' emulates an 'android' one.
//
// * 'input_selector : (default: '.searchbox input')
// defines the dom element that the keyboard will write to.
//
// The widget is initially hidden. It can be shown with this.show(), and is
// automatically shown when the input_selector gets focused.
var OnscreenKeyboardWidget = Widget.extend({
template: 'OnscreenKeyboardSimple',
init: function(parent, options){
this._super(parent,options);
options = options || {};
this.keyboard_model = options.keyboard_model || 'simple';
if(this.keyboard_model === 'full'){
this.template = 'OnscreenKeyboardFull';
}
this.input_selector = options.input_selector || '.searchbox input';
this.$target = null;
//Keyboard state
this.capslock = false;
this.shift = false;
this.numlock = false;
},
connect : function(target){
var self = this;
this.$target = $(target);
this.$target.focus(function(){self.show();});
},
generateEvent: function(type,key){
var event = document.createEvent("KeyboardEvent");
var initMethod = event.initKeyboardEvent ? 'initKeyboardEvent' : 'initKeyEvent';
event[initMethod]( type,
true, //bubbles
true, //cancelable
window, //viewArg
false, //ctrl
false, //alt
false, //shift
false, //meta
((typeof key.code === 'undefined') ? key.char.charCodeAt(0) : key.code),
((typeof key.char === 'undefined') ? String.fromCharCode(key.code) : key.char)
);
return event;
},
// Write a character to the input zone
writeCharacter: function(character){
var input = this.$target[0];
input.dispatchEvent(this.generateEvent('keypress',{char: character}));
if(character !== '\n'){
input.value += character;
}
input.dispatchEvent(this.generateEvent('keyup',{char: character}));
},
// Removes the last character from the input zone.
deleteCharacter: function(){
var input = this.$target[0];
input.dispatchEvent(this.generateEvent('keypress',{code: 8}));
input.value = input.value.substr(0, input.value.length -1);
input.dispatchEvent(this.generateEvent('keyup',{code: 8}));
},
// Clears the content of the input zone.
deleteAllCharacters: function(){
var input = this.$target[0];
if(input.value){
input.dispatchEvent(this.generateEvent('keypress',{code: 8}));
input.value = "";
input.dispatchEvent(this.generateEvent('keyup',{code: 8}));
}
},
// Makes the keyboard show and slide from the bottom of the screen.
show: function(){
$('.keyboard_frame').show().css({'height':'235px'});
},
// Makes the keyboard hide by sliding to the bottom of the screen.
hide: function(){
$('.keyboard_frame')
.css({'height':'0'})
.hide();
this.reset();
},
//What happens when the shift key is pressed : toggle case, remove capslock
toggleShift: function(){
$('.letter').toggleClass('uppercase');
$('.symbol span').toggle();
this.shift = (this.shift === true) ? false : true;
this.capslock = false;
},
//what happens when capslock is pressed : toggle case, set capslock
toggleCapsLock: function(){
$('.letter').toggleClass('uppercase');
this.capslock = true;
},
//What happens when numlock is pressed : toggle symbols and numlock label
toggleNumLock: function(){
$('.symbol span').toggle();
$('.numlock span').toggle();
this.numlock = (this.numlock === true ) ? false : true;
},
//After a key is pressed, shift is disabled.
removeShift: function(){
if (this.shift === true) {
$('.symbol span').toggle();
if (this.capslock === false) $('.letter').toggleClass('uppercase');
this.shift = false;
}
},
// Resets the keyboard to its original state; capslock: false, shift: false, numlock: false
reset: function(){
if(this.shift){
this.toggleShift();
}
if(this.capslock){
this.toggleCapsLock();
}
if(this.numlock){
this.toggleNumLock();
}
},
//called after the keyboard is in the DOM, sets up the key bindings.
start: function(){
var self = this;
//this.show();
$('.close_button').click(function(){
self.deleteAllCharacters();
self.hide();
});
// Keyboard key click handling
$('.keyboard li').click(function(){
var $this = $(this),
character = $this.html(); // If it's a lowercase letter, nothing happens to this variable
if ($this.hasClass('left-shift') || $this.hasClass('right-shift')) {
self.toggleShift();
return false;
}
if ($this.hasClass('capslock')) {
self.toggleCapsLock();
return false;
}
if ($this.hasClass('delete')) {
self.deleteCharacter();
return false;
}
if ($this.hasClass('numlock')){
self.toggleNumLock();
return false;
}
// Special characters
if ($this.hasClass('symbol')) character = $('span:visible', $this).html();
if ($this.hasClass('space')) character = ' ';
if ($this.hasClass('tab')) character = "\t";
if ($this.hasClass('return')) character = "\n";
// Uppercase letter
if ($this.hasClass('uppercase')) character = character.toUpperCase();
// Remove shift once a key is clicked.
self.removeShift();
self.writeCharacter(character);
});
},
});
return {
OnscreenKeyboardWidget: OnscreenKeyboardWidget,
};
});
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