iwmlib/lib/frames.js

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import { Points } from './utils.js'
import { Capabilities } from './capabilities.js'
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export class FrameContainer {
constructor(element) {
this.element = element
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this.delegate = new InteractionMapper(element, this, {
mouseWheelElement: window
})
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}
capture(event) {
return true
}
findTarget(event, local, global) {
let found = document.elementFromPoint(global.x, global.y)
let iframe = found.querySelector('iframe')
if (iframe) {
let p = Points.fromPageToNode(found, global)
let doc = iframe.contentWindow.document
let target = doc.elementFromPoint(p.x, p.y)
if (target != null) {
console.log('iframe element', target)
return new FrameTarget(iframe, target)
}
}
return null
}
}
export class FrameTarget {
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constructor(frame, target, debug = false) {
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this.frame = frame
this.target = target
this.debug = debug
}
capture(event) {
return true
}
simulateMouseEvent(type, point) {
let p = Points.fromPageToNode(this.frame, point)
let event = new MouseEvent(type, {
view: this.frame.contentWindow,
bubbles: true,
cancelable: true,
clientX: p.x,
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clientY: p.y
})
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this.target.dispatchEvent(event)
}
createTouchList(pointMap) {
let touches = []
let doc = this.frame.contentWindow.document
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for (let key of pointMap.keys()) {
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let point = pointMap.get(key)
let p = Points.fromPageToNode(this.frame, point)
let touchTarget = doc.elementFromPoint(p.x, p.y)
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let touch = new Touch(
undefined,
touchTarget,
key,
p.x,
p.y,
p.x,
p.y
)
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touches.push(touch)
}
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return new TouchList(...touches)
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}
simulateTouchEventChrome(type, point, pointMap) {
let doc = this.frame.contentWindow.document
let p = Points.fromPageToNode(this.frame, point)
let touchTarget = doc.elementFromPoint(p.x, p.y)
const touchObj = new Touch({
identifier: Date.now(),
target: touchTarget,
clientX: p.x,
clientY: p.y,
pageX: p.x,
pageY: p.y,
radiusX: 2.5,
radiusY: 2.5,
rotationAngle: 10,
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force: 0.5
})
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const touchEvent = new TouchEvent(type, {
cancelable: true,
bubbles: true,
touches: [touchObj],
targetTouches: [touchObj],
changedTouches: [touchObj],
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shiftKey: false
})
if (this.debug) console.log('simulateTouchEventChrome', touchEvent)
this.target.dispatchEvent(touchEvent)
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}
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simulateTouchEventSafari(
type,
point,
pointMap,
touchEventKey = 'targetTouches'
) {
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let p = Points.fromPageToNode(this.frame, point)
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let data = {
view: this.frame.contentWindow,
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bubbles: true,
cancelable: true,
clientX: p.x,
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clientY: p.y
}
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data[touchEventKey] = this.createTouchList(pointMap)
let event = new TouchEvent(type, data)
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if (this.debug) console.log('simulateTouchEventChrome', touchEvent)
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this.target.dispatchEvent(event)
}
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simulateTouchEvent(type, point, pointMap, touchEventKey = 'targetTouches') {
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if (Capabilities.isSafari) {
this.simulateTouchEventSafari(type, point, pointMap, touchEventKey)
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} else {
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this.simulateTouchEventChrome(type, point, pointMap)
}
}
isMouseLikeEvent(event) {
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return (
event.type.startsWith('mouse') || event.type.startsWith('pointer')
)
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}
onStart(event, interaction) {
if (this.debug) console.log('onStart', this.frame.parentNode)
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for (let [key, point] of interaction.current.entries()) {
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if (this.isMouseLikeEvent(event)) {
this.simulateMouseEvent('mousedown', point)
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} else {
this.simulateTouchEvent(
'touchstart',
point,
interaction.current
)
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return
}
}
}
onMove(event, interaction) {
if (this.debug) console.log('onMove')
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for (let [key, point] of interaction.current.entries()) {
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if (this.isMouseLikeEvent(event)) {
this.simulateMouseEvent('mousemove', point)
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} else {
this.simulateTouchEvent('touchmove', point, interaction.current)
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return
}
}
}
onEnd(event, interaction) {
if (this.debug) console.log('onEnd')
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for (let [key, point] of interaction.current.entries()) {
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if (this.isMouseLikeEvent(event)) {
this.simulateMouseEvent('mouseend', point)
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} else {
this.simulateTouchEvent(
'touchend',
point,
interaction.ended,
'changedTouches'
)
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return
}
}
}
}