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/*
* Copyright (C) 2016, 2022 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
class Slider extends SliderBase
{
constructor(layoutDelegate, cssClassName = "", knobStyle = Slider.KnobStyle.Circle)
{
super(layoutDelegate, `default ${cssClassName}`);
this._primaryFill = new LayoutNode(`<div class="primary"></div>`);
this._trackFill = new LayoutNode(`<div class="track"></div>`);
this._secondaryFill = new LayoutNode(`<div class="secondary"></div>`);
let fillContainer = new LayoutNode(`<div class="fill"></div>`);
fillContainer.children = [this._primaryFill, this._trackFill, this._secondaryFill];
this._knob = new LayoutNode(`<div class="knob ${knobStyle}"></div>`);
this.appearanceContainer.children = [fillContainer, this._knob];
this.height = 16;
this._knobStyle = knobStyle;
}
// Public
get knobStyle()
{
return this._knobStyle;
}
set knobStyle(knobStyle)
{
if (this._knobStyle === knobStyle)
return;
this._knob.element.classList.remove(this._knobStyle);
this._knobStyle = knobStyle;
this._knob.element.classList.add(this._knobStyle);
this.needsLayout = true;
}
// Protected
commit()
{
super.commit();
const scrubberWidth = (style => {
switch (style) {
case Slider.KnobStyle.Bar:
return 4;
case Slider.KnobStyle.Circle:
return 9;
case Slider.KnobStyle.None:
return 0;
}
console.error("Unknown Slider.KnobStyle");
return 0;
})(this._knobStyle);
const scrubberBorder = (style => {
switch (style) {
case Slider.KnobStyle.Bar:
return 1;
case Slider.KnobStyle.Circle:
return (-1 * scrubberWidth / 2);
case Slider.KnobStyle.None:
return 0;
}
console.error("Unknown Slider.KnobStyle");
return 0;
})(this._knobStyle);
const scrubberCenterX = (scrubberWidth / 2) + Math.round((this.width - scrubberWidth) * this.value);
this._primaryFill.element.style.width = `${scrubberCenterX - (scrubberWidth / 2) - scrubberBorder}px`;
this._trackFill.element.style.left = `${scrubberCenterX + (scrubberWidth / 2) + scrubberBorder}px`;
this._secondaryFill.element.style.left = `${scrubberCenterX + (scrubberWidth / 2) + scrubberBorder}px`;
this._secondaryFill.element.style.right = `${(1 - this.secondaryValue) * 100}%`;
this._knob.element.style.left = `${scrubberCenterX}px`;
}
}
Slider.KnobStyle = {
Circle: "circle",
Bar: "bar",
None: "none",
};
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