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webaudio-controls.html
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webaudio-controls.html
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<!--
/* *
*
* WebAudio-Controls is based on
* webaudio-knob by Eiji Kitamura http://google.com/+agektmr
* webaudio-slider by RYoya Kawai https://plus.google.com/108242669191458983485/posts
* webaudio-switch by Keisuke Ai http://d.hatena.ne.jp/aike/
* Integrated and enhanced by g200kg http://www.g200kg.com/
*
* Copyright 2013 Eiji Kitamura / Ryoya KAWAI / Keisuke Ai / g200kg(Tatsuya Shinyagaito)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* */
-->
<dom-module id="webaudio-knob">
<template>
<div class="wac-body" id="wac-body" touch-action="none">
<div id="wac-knob" touch-action="none"></div>
<div id="wac-valuetip-row"><span id="wac-valuetip" touch-action="none">{{valuedisp}}{{units}}</span></div>
<div id="wac-tooltip-box"><span id="wac-tooltip-text">{{tooltip}}</span></div>
</div>
<style>
:host {
user-select: none;
display: inline-block;
font-family: sans-serif;
font-size: 11px;
padding:0;
margin:0;
}
#wac-body {
position: relative;
display: inline-block;
margin:0;
padding:0;
width: 100%;
height: 100%;
}
#wac-knob {
display: inline-block;
cursor: pointer;
margin:0;
padding:0;
width: 100%;
height: 100%;
border: attr(b-t)
background-repeat: no-repeat;
background-position: 0px 0px;
}
#wac-valuetip-row{
display:block;
z-index: 10;
width:100%;
user-select: none;
position: absolute;
top: -20px;
height:20px;
text-align: center;
}
#wac-valuetip {
text-align: center;
z-index: 10;
display: none;
opacity: 0;
border: solid 1px #666;
background-color: #fff;
color: #000;
border-radius: 4px;
padding: 3px 8px;
transition: opacity 0.3s;
}
#wac-tooltip-box {
position: absolute;
bottom: -24px;
left: 20px;
z-index: 10;
display: none;
opacity: 0;
width: 200px;
transition: opacity 0.5s;
}
#wac-tooltip-text {
display: inline-block;
border: solid 0px #666;
background-color: #fff;
color: #000;
border-radius: 5px;
padding: 5px;
}
</style>
</template>
<script>
Polymer({
is:"webaudio-knob",
properties:{
src: {type:String, value:null, observer:'setupImage'},
bgsrc: {type:String, value:null, observer:'setupImage'},
value: {type:Number, value:0, observer:'updateValue'},
defvalue: {type:Number, value:0},
min: {type:Number, value:0},
max: {type:Number, value:100},
step: {type:Number, value:1},
log: {type:Number, value:0},
units: {type:String,value:null},
width: {type:Number, value:64, observer:'layout'},
height: {type:Number, value:64, observer:'layout'},
diameter: {type:Number, value:null, observer:'layout'},
sprites: {type:Number, value:0},
sensitivity:{type:Number, value:1},
valuetip: {type:Number, value:1},
tootip: {type:String, value:null},
colors: {type:String, value:'#e00;#000;#000', observer:'setupImage'},
enable: {type:Number, value:1},
},
ready:function(){
function log2(num) {
var log=Math.log(num) / Math.LN2;
return log;
}
if(this.defvalue === null)
this.defvalue = this.value;
this.digits=0;
var body = this.$['wac-body'];
var knb = this.$['wac-knob'];
knb.addEventListener('DOMMouseScroll',this.wheel.bind(this),false);
knb.addEventListener('mousewheel',this.wheel.bind(this),false);
knb.addEventListener('mousedown',this.pointerdown.bind(this),false);
knb.addEventListener('touchstart',this.pointerdown.bind(this),false);
knb.addEventListener('mouseover',this.pointerover.bind(this),false);
knb.addEventListener('mouseout',this.pointerout.bind(this),false);
this.setupImage();
knb.style.backgroundSize = '100% '+((this.sprites+1)*100)+'%';
if(this.step && this.step < 1) {
for(var n = this.step ; n < 1; n *= 10)
++this.digits;
}
this.minval = this.min;
this.maxval = this.max;
if (this.log) {
if (this.minval == 0)
this.minval = 0.001;
this.min = log2(this.minval);
this.max = log2(this.maxval);
this.setValue(log2(this.value));
this.ctlStep = 0.0001;
} else{
this.ctlStep=this.step;
}
this.redraw();
this.fire('change');
},
setupImage: function(){
var body = this.$['wac-body'];
var knb = this.$['wac-knob'];
if(this.colors)
this.coltab=this.colors.split(";");
else
this.coltab=["#e00","#000","#000"];
switch(this.coltab.length){
case 1: this.coltab[1]=this.coltab[2]="#000"; break;
case 2: this.coltab[2]=this.coltab[1]; break;
}
if(this.bgsrc)
body.style.background = 'url('+this.bgsrc+')';
if(this.src)
knb.style.background = 'url('+this.src+')';
else {
knb.style.background = 'url(data:image/svg+xml,%3csvg%20xmlns%3d%22http%3a%2f%2fwww%2ew3%2eorg%2f2000%2fsvg%22%20version%3d%221%2e1%22%20viewBox%3d%220%200%2010%2010%22%20preserveAspectRatio%3d%22none%22%3e%0d%0a%3cline%20x1%3d%225%22%20y1%3d%22%2e5%22%20x2%3d%225%22%20y2%3d%224%22%20stroke%3d%22'+encodeURIComponent(this.coltab[0])+'%22%20stroke%2dwidth%3d%22%2e8%22%20stroke%2dlinecap%3d%22round%22%2f%3e%0d%0a%3c%2fsvg%3e)';
body.style.background = 'url(data:image/svg+xml,%3csvg%20xmlns%3d%22http%3a%2f%2fwww%2ew3%2eorg%2f2000%2fsvg%22%20version%3d%221%2e1%22%20viewBox%3d%220%200%2010%2010%22%20preserveAspectRatio%3d%22none%22%3e%0d%0a%3cradialGradient%20id%3d%22g0%22%20fx%3d%22%2e3%22%20fy%3d%22%2e3%22%3e%3cstop%20offset%3d%220%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[2])+'%22%2f%3e%3cstop%20offset%3d%22%2e75%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[1])+'%22%2f%3e%3c%2fradialGradient%3e%0d%0a%3ccircle%20cx%3d%225%22%20cy%3d%225%22%20r%3d%225%22%20fill%3d%22url%28%23g0%29%22%2f%3e%0d%0a%3c%2fsvg%3e)';
this.sprites = 0;
}
},
preventScroll: function(e){
e.preventDefault();
},
pointerdown: function(e) {
if(!this.enable)
return;
if(e.touches)
e = e.touches[0];
this.boundPointermove = this.pointermove.bind(this);
this.boundCancel = this.cancel.bind(this);
if(e.ctrlKey || e.metaKey) {
this.setValue(parseFloat(this.defvalue));
}
else {
this.startPosX = e.pageX;
this.startPosY = e.pageY;
this.startVal = this.value;
window.addEventListener('mousemove', this.boundPointermove, true);
window.addEventListener('touchmove', this.boundPointermove, true);
}
window.addEventListener('mouseup', this.boundCancel, true);
window.addEventListener('touchend', this.boundCancel, true);
window.addEventListener('touchcancel', this.boundCancel, true);
document.body.addEventListener('touchstart',this.preventScroll);
this.press = this.vtflag = 1;
this.ttflag = 0;
this.showtip();
e.preventDefault();
e.stopPropagation();
return false;
},
pointermove: function(e) {
if(e.touches)
e = e.touches[0];
if(this.lastShift !== e.shiftKey) {
this.lastShift = e.shiftKey;
this.startPosX = e.pageX;
this.startPosY = e.pageY;
this.startVal = this.value;
}
var offset = (this.startPosY - e.pageY - this.startPosX + e.pageX) * this.sensitivity;
this.value = this.min + ((((this.startVal + (this.max - this.min) * offset / ((e.shiftKey ? 4:1) * 128)) - this.min) / this.ctlStep)|0) * this.ctlStep;
e.preventDefault();
e.stopPropagation();
return false;
},
cancel: function(e) {
this.press = this.vtflag = 0;
this.showtip();
this.startPosX = this.startPosY = null;
window.removeEventListener('mousemove', this.boundPointermove, true);
window.removeEventListener('touchmove', this.boundPointermove, true);
window.removeEventListener('mouseup', this.boundCancel, true);
window.removeEventListener('touchend', this.boundCancel, true);
window.removeEventListener('touchcancel', this.boundCancel, true);
document.body.removeEventListener('touchstart',this.preventScroll,false);
},
pointerover: function(e) {
if(typeof(e.buttons)!="undefined")
var btn = e.buttons;
else
var btn = e.which;
if(btn==0)
this.ttflag = 1;
setTimeout(this.showtip.bind(this),700);
},
pointerout: function(e) {
this.ttflag = 0;
if(this.press==0)
this.vtflag = 0;
this.showtip();
},
showtip: function() {
var vs=this.$['wac-valuetip'].style;
var ts=this.$['wac-tooltip-box'].style;
if(this.valuetip && this.vtflag) {
if(this.vtim) {
clearTimeout(this.vtim);
this.vtim = null;
}
vs.display="inline-block";
setTimeout(function(){this.opacity=0.9;}.bind(vs),50);
}
else if(vs.opacity) {
vs.opacity = 0;
this.vtim=setTimeout(function(){if(this.vtflag==0) this.$['wac-valuetip'].style.display="none";}.bind(this),500);
}
if(this.tooltip && this.ttflag) {
ts.display="block";
setTimeout(function(){this.opacity=0.8;}.bind(ts),100);
}
else if(ts.opacity) {
ts.opacity = 0;
setTimeout(function(){this.display="none";}.bind(ts),500);
}
},
wheel: function(e) {
var delta = 0;
if(!e)
e = window.event;
if(e.wheelDelta)
delta = e.wheelDelta/120;
else if(e.detail)
delta = -e.detail/3;
if(e.shiftKey)
delta *= 0.2;
delta *= (this.max - this.min) * 0.05;
if(Math.abs(delta) < this.step)
delta = (delta>0)?this.step:-this.step;
this.value += delta;
this.ttflag = 0;
this.vtflag = 1;
this.showtip();
e.preventDefault();
},
setValue: function(value,fire){
if(!fire)
this.valueold = value;
this.value = value;
},
updateValue: function() {
var value = parseFloat(this.value);
if(!isNaN(value)) {
this.value = value < this.min ? this.min : value > this.max ? this.max : value;
var valueNumber = (this.log) ? Math.pow(2,this.value) : this.value;
this.valuedisp = valueNumber.toFixed(this.digits);
if ((this.digits==0)&&(valueNumber>1000)) {
valueNumber = valueNumber/1000;
this.valuedisp = valueNumber.toFixed((valueNumber<10)?2:1) + "k";
}
}
this.redraw();
if(this.value != this.valueold) {
this.valueold = this.value;
this.fire('change');
}
},
layout: function(){
var knobstyle = this.$['wac-knob'].style;
var bodystyle = this.$['wac-body'].style;
if(this.diameter)
this.width = this.height = this.diameter;
if(this.width)
bodystyle.width = knobstyle.width = this.width+"px";
if(this.height)
bodystyle.height = knobstyle.height = this.height+"px";
},
redraw: function() {
var range = this.max - this.min;
var style = this.$['wac-knob'].style;
if(this.sprites) {
var offset = ((this.sprites * (this.value - this.min) / range)|0) * this.height;
style.backgroundPosition= "0px -" + offset + "px";
style.transform = 'rotate(0deg)';
}
else {
var deg = 270*((this.value-this.min)/range-0.5);
style.transform = 'rotate('+deg+'deg)';
}
}
});
</script>
</dom-module>
<dom-module id="webaudio-slider">
<template>
<div class="wac-body" id="wac-body">
<div id="wac-knob"></div>
<span id="wac-valuetip">{{valuedisp}}{{units}}</span>
<div id="wac-tooltip-box"><span id="wac-tooltip-text">{{tooltip}}</span></div>
</div>
<style>
:host {
user-select: none;
display: inline-block;
font-family: sans-serif;
font-size: 11px;
padding:0;
margin:0;
}
#wac-body {
position: relative;
display: inline-block;
}
#wac-knob {
position: relative;
}
#wac-valuetip {
position: absolute;
top: -20px;
left: 0;
z-index: 10;
display: none;
opacity: 0;
border: solid 1px #666;
background-color: #fff;
color: #000;
border-radius: 4px;
padding: 3px 8px;
transition: opacity 0.3s;
}
#wac-tooltip-box {
position: absolute;
bottom: -24px;
left: 20px;
z-index: 10;
display: none;
opacity: 0;
width: 200px;
transition: opacity 0.5s;
}
#wac-tooltip-text {
display: inline-block;
border: solid 0px #666;
background-color: #fff;
color: #000;
border-radius: 5px;
padding: 5px;
}
</style>
</template>
<script>
Polymer({
is:"webaudio-slider",
properties:{
value: {type:Number, value:0, observer:'updateValue'},
units: {type:String, value:null},
log: {type:Number, value:0},
defvalue: {type:Number, value:0},
min: {type:Number, value:0},
max: {type:Number, value:100},
step: {type:Number, value:1},
width: {type:Number, value:null, observer:'layout'},
height: {type:Number, value:null, observer:'layout'},
knobwidth: {type:Number, value:null},
knobheight: {type:Number, value:null},
ditchlength:{type:Number, value:null, observer:'layout'},
length: {type:Number, value:0},
weight: {type:Number, value:0},
direction: {type:String, value:'vert', observer:'layout'},
knobsrc: {type:String, value:null, observer:'setupImage'},
sensitivity:{type:Number, value:1},
digits: {type:Number, value:0},
src: {type:String, value:""},
valuetip: {type:Number, value:1},
tootip: {type:String, value:null},
colors: {type:String, value:null, observer:'setupImage'},
enable: {type:Number, value:1},
},
preventScroll: function(e){
e.preventDefault();
},
pointermove: function(e) {
if(e.touches)
e = e.touches[0];
if(this.lastShift !== e.shiftKey) {
this.lastShift = e.shiftKey;
this.startPosX = e.pageX;
this.startPosY = e.pageY;
this.startVal = this.value;
}
if(this.direction == 'vert')
var offset = (this.startPosY - e.pageY) / this._ditchlength;
else
var offset = (e.pageX - this.startPosX) / this._ditchlength;
this.value = this.min + (((((this.startVal + (this.max - this.min) * offset * this.sensitivity / ((e.shiftKey ? 4:1))) - this.min) / this.step)|0) * this.step);
e.preventDefault();
},
cancel: function(e) {
this.press = this.vtflag = 0;
this.showtip();
this.startPosX = this.startPosY = null;
window.removeEventListener('mousemove', this.boundPointermove, true);
window.removeEventListener('touchmove', this.boundPointermove, true);
window.removeEventListener('mouseup', this.boundCancel, true);
window.removeEventListener('touchend', this.boundCancel, true);
window.removeEventListener('touchcancel', this.boundCancel, true);
document.body.removeEventListener('touchstart',this.preventScroll,false);
},
ready: function() {
if(this.defvalue == null)
this.defvalue = this.value;
this.layout();
var slib=this.$['wac-body'];
var slik=this.$['wac-knob'];
slib.addEventListener('DOMMouseScroll',this.wheel.bind(this),false);
slib.addEventListener('mousewheel',this.wheel.bind(this),false);
slib.addEventListener('mousedown',this.pointerdown.bind(this),false);
slib.addEventListener('touchstart',this.pointerdown.bind(this),false);
slib.addEventListener('mouseover',this.pointerover.bind(this),false);
slib.addEventListener('mouseout',this.pointerout.bind(this),false);
this.setupImage();
slik.style.background = 'url('+this._knobsrc+')';
slik.style.backgroundSize = '100% 100%';
if(this.step && this.step < 1) {
for(var n = this.step ; n < 1; n *= 10)
++this.digits;
}
},
pointerdown: function(e) {
if(!this.enable)
return;
if(e.touches)
e = e.touches[0];
this.boundPointermove = this.pointermove.bind(this);
this.boundCancel = this.cancel.bind(this);
if(e.ctrlKey || e.metaKey)
this.value = this.defvalue;
else {
if(this.valuetip)
this.$['wac-valuetip'].style.opacity = 0.9;
this.startPosX = e.pageX;
this.startPosY = e.pageY;
this.startVal = this.value;
window.addEventListener('mousemove', this.boundPointermove, true);
window.addEventListener('touchmove', this.boundPointermove, true);
}
window.addEventListener('mouseup', this.boundCancel, true);
window.addEventListener('touchend', this.boundCancel, true);
window.addEventListener('touchcancel', this.boundCancel, true);
document.body.addEventListener('touchstart',this.preventScroll);
this.press = this.vtflag = 1;
this.ttflag = 0;
this.showtip();
e.preventDefault();
},
pointerover: function(e) {
if(typeof(e.buttons)!="undefined")
var btn = e.buttons;
else
var btn = e.which;
if(btn==0)
this.ttflag = 1;
setTimeout(this.showtip.bind(this),700);
},
pointerout: function(e) {
this.ttflag = 0;
if(this.press==0)
this.vtflag = 0;
this.showtip();
},
showtip: function() {
var vs=this.$['wac-valuetip'].style;
var ts=this.$['wac-tooltip-box'].style;
if(this.valuetip && this.vtflag) {
if(this.vstim)
clearTimeout(this.vstim);
vs.display="block";
setTimeout(function(){this.opacity=0.8;}.bind(vs),50);
}
else if(vs.opacity) {
vs.opacity = 0;
this.vtim=setTimeout(function(){if(this.vtflag==0) this.$['wac-valuetip'].style.display="none";}.bind(this),500);
}
if(this.tooltip && this.ttflag) {
ts.display = "block";
setTimeout(function(){this.opacity=0.8;}.bind(ts),100);
}
else if(ts.opacity) {
ts.opacity = 0;
setTimeout(function(){this.display="none";}.bind(ts),500);
}
},
wheel: function(e) {
var delta = 0;
if(!e)
e = window.event;
if(e.wheelDelta)
delta = e.wheelDelta/120;
else if(e.detail)
delta = -e.detail/3;
if(e.shiftKey)
delta *= 0.2;
delta *= (this.max - this.min) * 0.05;
if(Math.abs(delta) < this.step)
delta = (delta>0)?this.step:-this.step;
this.value += delta;
this.ttflag = 0;
this.vtflag = 1;
this.showtip();
e.preventDefault();
},
layout: function(){
this._width = parseFloat(this.width);
this._height = parseFloat(this.height);
if(this.width == null)
this._width = (this.direction == 'vert' ? 24 : 128);
if(this.height == null)
this._height = (this.direction == 'vert' ? 128 : 24);
this._knobwidth = parseFloat(this.knobwidth);
this._knobheight = parseFloat(this.knobheight);
if(this.knobwidth == null)
this._knobwidth = (this.direction == 'vert' ? this._width : this._height);
if(this.knobheight == null)
this._knobheight = (this.direction == 'vert' ? this._width : this._height);
this._ditchlength = parseFloat(this.ditchlength);
if(this.ditchlength == null)
this._ditchlength = (this.direction =='vert' ? this._height - this._knobheight : this._width - this._knobwidth);
var knob = this.$['wac-knob'];
var body = this.$['wac-body'];
if(knob&&body){
knob.style.width = this._knobwidth+'px';
knob.style.height = this._knobheight+'px';
if(this.direction=='vert'){
if(this._width)
body.style.width = knob.style.width = this._width+"px";
if(this._height)
body.style.height = this._height+"px";
}
else{
if(this._width)
body.style.width = this._width+"px";
if(this.height)
body.style.height = knob.style.height = this._height+"px";
}
this.redraw();
}
},
setupImage: function(){
if(this.colors)
this.coltab=this.colors.split(";");
else
this.coltab=["#e00","#000","#fff"];
switch(this.coltab.length){
case 1: this.coltab[1]=this.coltab[2]="#fff"; break;
case 2: this.coltab[2]=this.coltab[0]; break;
}
var slib=this.$['wac-body'];
if(this.src)
slib.style.background = 'url('+this.src+')';
else {
slib.style.background = this.coltab[1];
slib.style.borderRadius = (Math.min(this._width,this._height)*.5)+'px';
}
slib.style.backgroundSize = '100% 100%';
this._knobsrc = this.knobsrc;
if(!this.knobsrc){
this._knobsrc = 'data:image/svg+xml;,%3csvg%20xmlns%3d%22http%3a%2f%2fwww%2ew3%2eorg%2f2000%2fsvg%22%20version%3d%221%2e1%22%20viewBox%3d%220%200%2010%2010%22%20preserveAspectRatio%3d%22none%22%3e%0d%0a%3cradialGradient%20id%3d%22g0%22%20fx%3d%22%2e3%22%20fy%3d%22%2e3%22%3e%3cstop%20offset%3d%220%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[2])+'%22%2f%3e%3cstop%20offset%3d%22%2e75%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[0])+'%22%2f%3e%3c%2fradialGradient%3e%0d%0a%3ccircle%20cx%3d%225%22%20cy%3d%225%22%20r%3d%224%22%20fill%3d%22url%28%23g0%29%22%2f%3e%0d%0a%3c%2fsvg%3e';
}
},
setValue: function(value,fire){
if(!fire)
this.valueold = value;
this.value = value;
},
updateValue: function() {
var value = parseFloat(this.value);
if(!isNaN(value)) {
this.value = value < this.min ? this.min : value > this.max ? this.max : value;
this.redraw();
if(this.value != this.valueold) {
this.valueold = this.value;
this.fire('change');
}
}
},
redraw: function(){
var range = this.max - this.min;
var s=this.$['wac-knob'].style;
if(this.direction == 'vert') {
var pos = (this._height + this._ditchlength - this._knobheight)*0.5 - (this.value -this.min) / range * this._ditchlength;
s.top = pos + "px";
s.left = "0px";
}
else {
var pos = (this._width - this._ditchlength - this._knobwidth)*0.5 + (this.value - this.min) / range * this._ditchlength;
s.top = "0px";
s.left = pos+"px";
}
this.valuedisp = this.value.toFixed(this.digits);
}
});
</script>
</dom-module>
<dom-module id="webaudio-switch">
<template>
<div id="wac-body">
<div id="wac-switch"></div>
<div id="wac-tooltip-box"><span id="wac-tooltip-text">{{tooltip}}</span></div>
</div>
<style>
:host {
user-select: none;
display: inline-block;
font-family: sans-serif;
font-size: 11px;
padding:0;
margin:0;
}
#wac-body {
position: relative;
display: inline-block;
background: #000;
border-radius: 5px;
}
#wac-switch {
cursor: pointer;
background-position: -64px;
}
#wac-tooltip-box {
position: absolute;
bottom: -24px;
left: 20px;
z-index: 10;
display: none;
opacity: 0;
width: 200px;
transition: opacity 0.5s;
}
#wac-tooltip-text {
display: inline-block;
border: solid 0px #666;
background-color: #fff;
color: #000;
border-radius: 5px;
padding: 5px;
}
</style>
</template>
<script>
Polymer({
is:"webaudio-switch",
properties:{
value: {type:Number, value:0, observer:'updateValue'},
defvalue: {type:Number, value:0},
type: {type:String, value:'toggle'},
width: {type:Number, value:24, observer:'layout'},
height: {type:Number, value:24, observer:'layout'},
invert: {type:Number, value:0},
src: {type:String, value:null},
group: {type:String, value:''},
tooltip: {type:String, value:null},
colors: {type:String, value:null, },
enable: {type:Number, value:1},
},
cancel: function(e) {
window.removeEventListener('mouseup', this.boundUp, true);
window.removeEventListener('touchend', this.boundUp, true);
window.removeEventListener('touchcancel', this.boundCancel, true);
if(this.type=="kick")
this.setValue(0);
this.press = 0;
},
up: function(e) {
window.removeEventListener('mouseup', this.boundUp, true);
window.removeEventListener('touchend', this.boundUp, true);
window.removeEventListener('touchcancel', this.boundCancel, true);
if(this.type=="kick") {
if(this.value) {
this.value = 0;
this.fire('click');
}
}
this.press = 0;
e.preventDefault();
return false;
},
ready: function() {
var body = this.$['wac-body'];
var sw = this.$['wac-switch'];
sw.addEventListener('mousedown',this.pointerdown.bind(this),false);
sw.addEventListener('mouseover',this.pointerover.bind(this),false);
sw.addEventListener('mouseout',this.pointerout.bind(this),false);
sw.addEventListener('click',this.click.bind(this),false);
this.setupImage();
this.layout();
sw.style.backgroundSize = '100% 200%';
if(this.defvalue === null)
this.defvalue = this.value;
this.redraw();
},
pointerdown: function(e) {
if(!this.enable)
return;
this.boundCancel = this.cancel.bind(this);
this.boundUp = this.up.bind(this);
window.addEventListener('mouseup', this.boundUp, true);
window.addEventListener('touchend', this.boundUp, true);
window.addEventListener('touchcancel', this.boundCancel, true);
switch(this.type) {
case 'kick':
this.value = 1;
break;
case 'toggle':
if(e.ctrlKey || e.metaKey)
this.value = defvalue;
else
this.value = 1 - this.value;
break;
case 'radio':
this.value = 1;
break;
}
this.press = 1;
this.ttflag = 0;
this.showtip();
e.preventDefault();
},
pointerover: function(e) {
if(typeof(e.buttons) != "undefined")
var btn = e.buttons;
else
var btn = e.which;
if(btn==0)
this.ttflag = 1;
setTimeout(this.showtip.bind(this),700);
this.hover = 1;
if(this.type == "kick" && this.press)
this.value = 1;
},
pointerout: function(e) {
this.ttflag = 0;
if(this.press == 0)
this.vtflag = 0;
this.showtip();
this.hover = 0;
if(this.type == "kick")
this.value = 0;
},
showtip: function() {
var ts=this.$['wac-tooltip-box'].style;
if(this.tooltip && this.ttflag) {
ts.display="block";
setTimeout(function(){this.opacity=0.8;}.bind(ts),100);
}
else if(ts.opacity) {
ts.opacity = 0;
setTimeout(function(){this.display="none";}.bind(ts),500);
}
},
click: function(e) {
e.preventDefault();
e.stopPropagation();
return false;
},
layout: function(){
var sw = this.$['wac-switch'];
sw.style.width = this.width+'px';
sw.style.height = this.height+'px';
this.redraw();
},
setupImage: function(){
if(this.colors)
this.coltab=this.colors.split(";");
else
this.coltab=["#e00","#000","#fff"];
switch(this.coltab.length){
case 1: this.coltab[1]=this.coltab[2]="#fff"; break;
case 2: this.coltab[2]=this.coltab[0]; break;
}
var body=this.$['wac-body'];
var sw=this.$['wac-switch'];
if(this.src){
body.style.background = 'rgba(0,0,0,0)';
sw.style.background = 'url('+this.src+')';
}
else {
body.style.background = this.coltab[1];
body.style.borderRadius = Math.min(this.width*.5,this.height*.5,5)+'px';
sw.style.background = 'url(data:image/svg+xml;,%3csvg%20xmlns%3d%22http%3a%2f%2fwww%2ew3%2eorg%2f2000%2fsvg%22%20version%3d%221%2e1%22%20viewBox%3d%220%200%2010%2020%22%20preserveAspectRatio%3d%22none%22%3e%0d%0a%3cradialGradient%20id%3d%22g0%22%20fx%3d%22%2e3%22%20fy%3d%22%2e3%22%3e%3cstop%20offset%3d%220%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[2])+'%22%2f%3e%3cstop%20offset%3d%22%2e75%22%20stop%2dcolor%3d%22'+encodeURIComponent(this.coltab[0])+'%22%2f%3e%3c%2fradialGradient%3e%0d%0a%3ccircle%20cx%3d%225%22%20cy%3d%225%22%20r%3d%223%22%20stroke%2dwidth%3d%22%2e5%22%20stroke%3d%22'+encodeURIComponent(this.coltab[0])+'%22%20fill%3d%22none%22%2f%3e%0d%0a%3ccircle%20cx%3d%225%22%20cy%3d%2215%22%20r%3d%223%22%20fill%3d%22url%28%23g0%29%22%2f%3e%0d%0a%3c%2fsvg%3e)';
}
},
setValue: function(value,fire){
if(!fire)
this.valueold = value;
this.value = value;
},
updateValue: function() {
this.value = parseInt(this.value);
this.valuedisp = this.value;
this.redraw();
var el = document.getElementsByTagName('webaudio-switch');
if(this.value == 1) {
for(var i = 0, j = el.length; i < j; ++i) {
if(this.group && el[i] != this && el[i].group == this.group)
el[i].value = 0;
}
}
this.fire('change');
if(this.value != this.valueold)
this.valueold = this.value;
},
redraw: function(){
this.$['wac-switch'].style.backgroundPosition = '0px -' + ((this.value^this.invert) * this.height) + 'px';
},
});
</script>
</dom-module>
<dom-module id="webaudio-param">
<template>
<input type="text" id="param" value="0"/>
<style>
:host {
user-select: none;
display: inline-block;
font-family: sans-serif;
font-size: 11px;
padding:0;
margin:0;
}
#param {
border: none;
cursor: pointer;
text-align: center;
position: relative;
background: none;
border-radius: 5px;
}
</style>
</template>
<script>
Polymer({
is:"webaudio-param",
properties:{
value: {type:Number, value:0, observer:'updateValue'},
width: {type:Number, value:32, observer:'layout'},
height: {type:Number, value:16, observer:'layout'},
fontsize: {type:Number, value:9, observer:'layout'},
src: {type:String, value:null, observer:'setupImage'},
// color: {type:String, value:'#ffffff', observer:'setupImage'},
link: {type:String, value:null},
colors: {type:String, value:'#fff;#000', observer:'setupImage'},
fcon: {type:String, value:null},
},
change: function(e) {
if(e.target)
e = e.target;
var f = eval(this.fconv);
var t = typeof(f);
if(this.fconv == null)
this.value = e.valuedisp;
else if(t == "object")
this.value = f[e.value];
else if(t == "function")
this.value = f(e.value);
},
edit: function(e) {
var target=document.getElementById(this.link);
if(target) {
target.setValue(parseFloat(this.$['param'].value));
target.fire('change');
}
},
ready: function() {
this.setupImage();
this.boundChange = this.change.bind(this);
this.boundEdit = this.edit.bind(this);
this.layout();
if(this.link) {
var t = document.getElementById(this.link);
t.addEventListener("change", this.boundChange, true);
this.boundChange(t);
}
this.$['param'].addEventListener("change", this.boundEdit, true);
},
setupImage: function(){
if(this.colors)
this.coltab = this.colors.split(";");
else
this.coltab = ["#fff","#000"];
if(this.src)
this.$['param'].style.background = 'url('+this.src+')';
else if(this.src == "")
this.$['param'].style.background = 'none';
else
this.$['param'].style.background = this.coltab[1];
this.$['param'].style.backgroundSize = '100% 100%';
this.$['param'].style.color = this.coltab[0];
},
layout: function(){
this.$['param'].style.width = this.width+'px';
this.$['param'].style.height = this.height+'px';
this.$['param'].style.fontSize = this.fontsize+'px';
},
updateValue: function(){
this.$['param'].value=this.value;
},
});
</script>
</dom-module>
<dom-module id="webaudio-keyboard">
<template>
<div id="wac-body" touch-action="none"></div>
<style>
:host {
user-select: none;
display: inline-block;
font-family: sans-serif;
font-size: 11px;
padding:0;
margin:0;
}
#wac-canvas {
cursor: pointer;
width: 400px;
height: 60px;
background: #22f;
}
</style>
</template>
<script>
Polymer({
is:"webaudio-keyboard",
properties:{
values: {type:Array, value:[]},
keys: {type:Number, value:25},
min: {type:Number, value:0},
max: {type:Number, value:72},
width: {type:Number, value:480},
height: {type:Number, value:128},
colors: {type:String, value:'#222;#eee;#ccc;#333;#000;#e88;#c44;#c33;#800'},
enable: {type:Number, value:1},