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* Copyright (c) 2022-2023 Braun Nathanael
*
* This project is dual licensed under one of the following licenses:
* - Creative Commons Attribution-NoDerivatives 4.0 International License.
* - GNU AFFERO GENERAL PUBLIC LICENSE Version 3
*
* You should have received a copy of theses licenses along with this work.
* If not, see <http://creativecommons.org/licenses/by-nd/4.0/> or <http://www.gnu.org/licenses/agpl-3.0.txt>.
*/
/**
* Old school dom utils & events managers
*/
let
is = require('is'),
isBrowser = typeof window !== 'undefined',
isTouch = isBrowser && ( function is_touch_device() {
var prefixes = ' -webkit- -moz- -o- -ms- '.split(' ');
var mq = function ( query ) {
return window.matchMedia && window.matchMedia(query).matches;
}
Iif ( ( 'ontouchstart' in window ) || window.DocumentTouch && document instanceof DocumentTouch ) {
return true;
}
// include the 'heartz' as a way to have a non matching MQ to help terminate the
// join https://git.io/vznFH
var query = ['(', prefixes.join('touch-enabled),('), 'heartz', ')'].join('');
return mq(query);
}() ),
_dom = isBrowser ? {
prefix : ( /webkit/i ).test(navigator.appVersion) ? 'webkit' :
( /firefox/i ).test(navigator.userAgent) ? 'Moz' :
( /trident/i ).test(navigator.userAgent) ? 'ms' :
'opera' in window ? 'O' : '',
dashedPrefix: ( /webkit/i ).test(navigator.appVersion) ? '-webkit-' :
( /firefox/i ).test(navigator.userAgent) ? '-moz-' :
( /trident/i ).test(navigator.userAgent) ? '-ms-' :
'opera' in window ? '-o-' : ''
} : {
prefix : '',
dashedPrefix: ''
},
__ = {
onPageHided : [],
onPageShown : [],
dragging : [],
dragEnabled : [],
dragEnabledDesc : [],
fingers : {},
nbFingers : 0,
dragstartAnywhere: function ( e ) {
let o,
me = __,
i = me.dragEnabled.indexOf(this),
finger,
desc, fingers = [];
Iif ( i === -1 ) {
return;
}
desc = me.dragEnabledDesc[ i ];
// respect the configured mouse button (Draggable `button` prop) : filtering must
// happen here, at mousedown time — mousemove events always report e.button = 0,
// so the drag/dropped callbacks can't reliably filter by themselves
Iif ( desc.button != null && e instanceof MouseEvent && e.button !== desc.button ) {
return;
}
//e.preventDefault();
//e.stopPropagation();
// Arm/reset on EVERY gesture start — deliberately NOT gated on the finger
// count: addEventListener dedups identical (type, fn, capture) listeners,
// and a corrupted count must never be able to disable the click machinery.
// The flag reset is safe ungated: a click always fires before the next
// mousedown, so a pending legit suppression can't be cleared early.
me.preventNextClick = false;
Dom.addEvent(document,
{
'touchmove': me.dragAnywhere,
'mousemove': me.dragAnywhere,
'touchend' : me.dropAnywhere,
'mouseup' : me.dropAnywhere,
});
// one-shot post-drag click interceptor — MUST be capture-phase so it
// runs before any descendant click handler (slide onClick etc.)
this.addEventListener('click', me.dropWithoutClick, true);
if ( e.changedTouches && e.changedTouches.length ) {
fingers = e.changedTouches
}
else fingers.push(e);
for ( let t = 0, ln = fingers.length; t < ln; t++ ) {
finger = fingers[ t ];
desc = me.dragEnabledDesc[ i ];
if ( desc.nbFingers ) continue;
me.nbFingers++;
me.fingers[ finger.identifier ] = me.fingers[ finger.identifier ] || [];
me.fingers[ finger.identifier ].push(desc);
desc.nbFingers++;
desc._startPos.x = _dom.prefix == 'MS' ? finger.x : finger.pageX;
desc._startPos.y = _dom.prefix == 'MS' ? finger.y : finger.pageY;
desc._startTs = e.timeStamp;
desc._lastPos.x = _dom.prefix == 'MS' ? finger.x : finger.pageX;
desc._lastPos.y = _dom.prefix == 'MS' ? finger.y : finger.pageY;
for ( o = 0; o < desc.dragstart.length; o++ )
desc.dragstart[ o ][ 0 ].call(desc.dragstart[ o ][ 1 ] ||
this, e, finger, desc);
}
},
dragAnywhere : function ( e ) {
let o,
me = __,
finger, fingers = [], stopped,
desc = __.dragging[ 0 ];
Iif ( e.changedTouches && e.changedTouches.length ) {
fingers = e.changedTouches
}
else fingers.push(e);
for ( let i = 0, ln = fingers.length; i < ln; i++ ) {
finger = fingers[ i ];
desc = me.fingers[ finger.identifier ];
me.fingers[ finger.identifier ] &&
me.fingers[ finger.identifier ].forEach(
desc => {
Iif ( stopped ) {
desc._lastPos.x = desc._startPos.x = _dom.prefix == 'MS'
? finger.x
: finger.pageX;
desc._lastPos.y = desc._startPos.y = _dom.prefix == 'MS'
? finger.y
: finger.pageY;
return;
}
desc._lastPos.x = _dom.prefix == 'MS' ? finger.x : finger.pageX;
desc._lastPos.y = _dom.prefix == 'MS' ? finger.y : finger.pageY;
for ( o = 0; o < desc.drag.length; o++ )
stopped = desc.drag[ o ][ 0 ].call(desc.drag[ o ][ 1 ] || this, e,
finger,
desc) === false;
}
)
}
},
dropWithoutClick : function ( e ) {
if ( __.preventNextClick ) {
e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
__.preventNextClick = false;
}
// `this` is the DOM node here — remove with the same capture flag used
// at registration or the listener silently stays attached
this.removeEventListener('click', __.dropWithoutClick, true);
},
dropAnywhere : function ( e ) {
let o,
me = __, finger, fingers = [],
prevent;
if ( e.changedTouches && e.changedTouches.length ) {
fingers = e.changedTouches
}
else fingers.push(e);
for ( let i = 0, ln = fingers.length; i < ln; i++ ) {
finger = fingers[ i ];
// only decrement for fingers we actually tracked — an untracked
// touchend/mouseup (multitouch extra finger, palm…) must not corrupt
// the count, or the whole gesture machinery silently breaks
if ( !me.fingers[ finger.identifier ] )
continue;
me.nbFingers--;
me.fingers[ finger.identifier ].forEach(
desc => {
desc.nbFingers--;
// NOTE: no duration-based suppression here — a motionless press of any
// length is still a click (browser semantics). Suppression is movement-
// based only, decided by the dropped consumers via desc.preventClick.
desc._lastPos.x = _dom.prefix == 'MS' ? finger.x : finger.pageX;
desc._lastPos.y = _dom.prefix == 'MS' ? finger.y : finger.pageY;
for ( o = 0; o < desc.dropped.length; o++ )
desc.dropped[ o ][ 0 ].call(desc.dropped[ o ][ 1 ] ||
this, e,
finger, desc);
// consumers (Draggable dropped handler) flag real drags via
// desc.preventClick — distance-aware, unlike the time-only
// fallback above
prevent = prevent || desc.preventClick;
desc.preventClick = false;
}
)
me.fingers[ finger.identifier ] = null;
}
if ( prevent ) {
me.preventNextClick = true;
}
Eif ( me.nbFingers <= 0 ) {
me.nbFingers = 0;// self-heal any historical count corruption
Dom.removeEvent(document,
{
'touchmove': me.dragAnywhere,
'mousemove': me.dragAnywhere,
'touchend' : me.dropAnywhere,
'mouseup' : me.dropAnywhere
});
}
},
getDraggable : function ( node, mouseDrag, touchDrag, button ) {
let i = this.dragEnabled.indexOf(node), desc;
if ( i === -1 ) {
this.dragEnabled.push(node);
this.dragEnabledDesc.push(
desc = {
mouseDrag,
touchDrag,
button,
nbFingers: 0,
locks : 0,
_startPos: {
x: 0,
y: 0
},
_lastPos : {
x: 0,
y: 0
},
dragstart: [],
drag : [],
dragEnd : [],
dropped : []
}
);
//debugger;
Dom.addEvent(node,
{
'mousedown' : mouseDrag && this.dragstartAnywhere,
'touchstart': touchDrag && this.dragstartAnywhere
}, null, null, null, true);
}
else desc = this.dragEnabledDesc[ i ];
return desc;
},
freeDraggable : function ( node ) {
let i = this.dragEnabled.indexOf(node), desc;
if ( i !== -1 ) {
this.dragEnabled.splice(i, 1);
this.dragEnabledDesc.splice(i, 1);
Dom.removeEvent(node,
{
'mousedown' : this.dragstartAnywhere,
'touchstart': this.dragstartAnywhere
});
}
},
addEvent : function ( node, type, fn, bubble ) {
if ( node.addEventListener ) {
node.addEventListener(type, fn, bubble);
}
else if ( node.attachEvent ) {
node.attachEvent('on' + type,
fn.related = function ( e ) {
return fn.call(node, e);
});
}
},
removeEvent: function ( node, type, fn, bubble ) {
if ( node.removeEventListener ) {
node.removeEventListener(type, fn, bubble);
}
else if ( node.attachEvent ) {
node.detachEvent('on' + type, fn.related);
}
},
rmDragFn : function ( arr, fn, scope ) {
for ( let i = 0, ln = arr.length; i < ln; i++ ) {
if ( arr[ i ][ 0 ] === fn )
return arr.splice(i, 1);
}
console.warn("Rm event : Listener not found !!");
},
},
Dom = {
addEvent : function ( node, type, fn, mouseDrag, touchDrag = true, bubble, button ) {
if ( is.object(type) ) {
for ( let o in type )
Eif ( type.hasOwnProperty(o) && type[ o ] )
this.addEvent(node, o, type[ o ], mouseDrag, touchDrag, bubble, button);
return;
}
else if ( type === 'dragstart' ) {
__.getDraggable(node, mouseDrag, touchDrag, button).dragstart.push([fn]);
}
else if ( type === 'drag' ) {
__.getDraggable(node, mouseDrag, touchDrag, button).drag.push([fn]);
}
else if ( type === 'dropped' ) {
__.getDraggable(node, mouseDrag, touchDrag, button).dropped.push([fn]);
}
else {
if ( node.addEventListener ) {
node.addEventListener(type, fn, { passive: false });
}
else Eif ( node.attachEvent ) {
node.attachEvent('on' + type,
fn.related = function ( e ) {
return fn.call(node, e);
});
}
}
},
removeEvent: function ( node, type, fn, scope, bubble ) {
let i, desc;
if ( is.object(type) ) {
for ( let o in type )
Eif ( type.hasOwnProperty(o) )
this.removeEvent(node, o, type[ o ], scope);
}
else Iif ( /^(drag|drop)/.test(type) ) {
desc = __.getDraggable(node);
__.rmDragFn(desc[ type ], fn, scope);
if ( !desc.dragstart.length
&& !desc.drag.length
&& !desc.dragEnd.length
&& !desc.dropped.length )
__.freeDraggable(node);
}
else {
if ( node.removeEventListener ) {
node.removeEventListener(type, fn, bubble);
}
else Eif ( node.attachEvent ) {
node.detachEvent('on' + type, fn.related);
}
}
},
offset : function ( elem ) {// @todo
let dims = {
top : 0,
left : 0,
width : elem.offsetWidth,
height: elem.offsetHeight
};
while ( elem ) {
dims.top = dims.top + parseInt(elem.offsetTop);
dims.left = dims.left + parseInt(elem.offsetLeft);
elem = elem.offsetParent;
}
return dims;
},
/**
* Find the react component that generate element dom node
* @param element
* @returns {[React.Component]}
*/
findReactParents( element ) {
let fiberNode, comps = [element];
for ( const key in element ) {
if ( key.startsWith('__reactInternalInstance$') || key.startsWith('__reactFiber$') ) {
fiberNode = element[ key ];
while ( fiberNode.return ) {
if ( fiberNode.stateNode && !comps.includes(fiberNode.stateNode) )
comps.push(fiberNode.stateNode)
fiberNode = fiberNode.return;
}
return comps;
}
}
return element.parentNode && this.findReactParents(element.parentNode);
}
};
export default Dom; |