@egjs/axes
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A module used to change the information of user action entered by various input devices such as touch screen or mouse into the logical virtual coordinates. You can easily create a UI that responds to user actions.
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<a href="../../index.html">All files</a> / <a href="index.html">src/inputType</a> InputType.ts
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/*
* Copyright (c) 2015 NAVER Corp.
* egjs projects are licensed under the MIT license
*/
import { Axis } from "../AxisManager";
import { AxesOption } from "../Axes";
import { ActiveEvent } from "../types";
import { MouseEventInput } from "../eventInput/MouseEventInput";
import { TouchEventInput } from "../eventInput/TouchEventInput";
import { PointerEventInput } from "../eventInput/PointerEventInput";
import { TouchMouseEventInput } from "../eventInput/TouchMouseEventInput";
import {
SUPPORT_POINTER_EVENTS,
SUPPORT_TOUCH,
} from "../eventInput/EventInput";
export interface InputType {
axes: string[];
element: HTMLElement;
mapAxes(axes: string[]);
connect(observer: InputTypeObserver): InputType;
disconnect();
destroy();
enable?();
disable?();
isEnable?(): boolean;
}
export interface InputTypeObserver {
options: AxesOption;
get(inputType: InputType): Axis;
change(inputType: InputType, event, offset: Axis, useAnimation?: boolean);
hold(inputType: InputType, event);
release(
inputType: InputType,
event,
velocity: number[],
inputDuration?: number
);
}
export const toAxis = (source: string[], offset: number[]): Axis => {
return offset.reduce((acc, v, i) => {
if (source[i]) {
acc[source[i]] = v;
}
return acc;
}, {});
};
export const convertInputType = (<span class="missing-if-branch" title="if path not taken" >I</span>inputType: string[] = []): ActiveEvent => {
let hasTouch = false;
let hasMouse = false;
let hasPointer = false;
inputType.forEach((v) => {
switch (v) {
case "mouse":
hasMouse = true;
break;
case "touch":
hasTouch = SUPPORT_TOUCH;
break;
case "pointer":
hasPointer = SUPPORT_POINTER_EVENTS;
// no default
}
});
if (hasPointer) {
return new PointerEventInput();
} else if (hasTouch && hasMouse) {
return new TouchMouseEventInput();
} else if (hasTouch) {
return new TouchEventInput();
} else if (hasMouse) {
return new MouseEventInput();
}
return null;
};
export function getAddEventOptions(eventName: string) {
// The passive default value of the touch event is true.
// If not a touch event, return false to support ie11
return eventName.indexOf("touch") > -1 ? { passive: false } : false;
}
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