fabric/dist/src/canvas/Canvas.min.mjs

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

import{_defineProperty as e}from"../../_virtual/_@oxc-project_runtime@0.122.0/helpers/defineProperty.min.mjs";import"../constants.min.mjs";import{classRegistry as t}from"../ClassRegistry.min.mjs";import{Point as n}from"../Point.min.mjs";import{isActiveSelection as r}from"../util/typeAssertions.min.mjs";import{getDocumentFromElement as i,getWindowFromElement as a}from"../util/dom_misc.min.mjs";import{isTouchEvent as o,stopEvent as s}from"../util/dom_event.min.mjs";import{sendPointToPlane as c}from"../util/misc/planeChange.min.mjs";import{SelectableCanvas as l}from"./SelectableCanvas.min.mjs";import{TextEditingManager as u}from"./TextEditingManager.min.mjs";const d={passive:!1},f=(e,t)=>({viewportPoint:e.getViewportPoint(t),scenePoint:e.getScenePoint(t)}),p=(e,...t)=>e.addEventListener(...t),m=(e,...t)=>e.removeEventListener(...t),h={mouse:{in:`over`,out:`out`,targetIn:`mouseover`,targetOut:`mouseout`,canvasIn:`mouse:over`,canvasOut:`mouse:out`},drag:{in:`enter`,out:`leave`,targetIn:`dragenter`,targetOut:`dragleave`,canvasIn:`drag:enter`,canvasOut:`drag:leave`}};var g=class extends l{constructor(t,n={}){super(t,n),e(this,`_isClick`,void 0),e(this,`textEditingManager`,new u(this)),[`_onMouseDown`,`_onTouchStart`,`_onMouseMove`,`_onMouseUp`,`_onTouchEnd`,`_onResize`,`_onMouseWheel`,`_onMouseOut`,`_onMouseEnter`,`_onContextMenu`,`_onClick`,`_onDragStart`,`_onDragEnd`,`_onDragProgress`,`_onDragOver`,`_onDragEnter`,`_onDragLeave`,`_onDrop`].forEach(e=>{this[e]=this[e].bind(this)}),this.addOrRemove(p)}_getEventPrefix(){return this.enablePointerEvents?`pointer`:`mouse`}addOrRemove(e,t=!1){let n=this.upperCanvasEl,r=this._getEventPrefix();e(a(n),`resize`,this._onResize),e(n,r+`down`,this._onMouseDown),e(n,`${r}move`,this._onMouseMove,d),e(n,`${r}out`,this._onMouseOut),e(n,`${r}enter`,this._onMouseEnter),e(n,`wheel`,this._onMouseWheel,{passive:!1}),e(n,`contextmenu`,this._onContextMenu),t||(e(n,`click`,this._onClick),e(n,`dblclick`,this._onClick)),e(n,`dragstart`,this._onDragStart),e(n,`dragend`,this._onDragEnd),e(n,`dragover`,this._onDragOver),e(n,`dragenter`,this._onDragEnter),e(n,`dragleave`,this._onDragLeave),e(n,`drop`,this._onDrop),this.enablePointerEvents||e(n,`touchstart`,this._onTouchStart,d)}removeListeners(){this.addOrRemove(m);let e=this._getEventPrefix(),t=i(this.upperCanvasEl);m(t,`${e}up`,this._onMouseUp),m(t,`touchend`,this._onTouchEnd,d),m(t,`${e}move`,this._onMouseMove,d),m(t,`touchmove`,this._onMouseMove,d),clearTimeout(this._willAddMouseDown)}_onMouseWheel(e){this._cacheTransformEventData(e),this._handleEvent(e,`wheel`),this._resetTransformEventData()}_onMouseOut(e){let t=this._hoveredTarget,n={e,...f(this,e)};this.fire(`mouse:out`,{...n,target:t}),this._hoveredTarget=void 0,t&&t.fire(`mouseout`,{...n}),this._hoveredTargets.forEach(e=>{this.fire(`mouse:out`,{...n,target:e}),e&&e.fire(`mouseout`,{...n})}),this._hoveredTargets=[]}_onMouseEnter(e){let{target:t}=this.findTarget(e);this._currentTransform||t||(this.fire(`mouse:over`,{e,...f(this,e)}),this._hoveredTarget=void 0,this._hoveredTargets=[])}_onDragStart(e){this._isClick=!1;let t=this.getActiveObject();if(t&&t.onDragStart(e)){this._dragSource=t;let n={e,target:t};this.fire(`dragstart`,n),t.fire(`dragstart`,n),p(this.upperCanvasEl,`drag`,this._onDragProgress);return}s(e)}_renderDragEffects(e,t,n){let r=!1,i=this._dropTarget;i&&i!==t&&i!==n&&(i.clearContextTop(),r=!0),t==null||t.clearContextTop(),n!==t&&(n==null||n.clearContextTop());let a=this.contextTop;a.save(),a.transform(...this.viewportTransform),t&&(a.save(),t.transform(a),t.renderDragSourceEffect(e),a.restore(),r=!0),n&&(a.save(),n.transform(a),n.renderDropTargetEffect(e),a.restore(),r=!0),a.restore(),r&&(this.contextTopDirty=!0)}_onDragEnd(e){let{currentSubTargets:t}=this.findTarget(e),n=!!e.dataTransfer&&e.dataTransfer.dropEffect!==`none`,r=n?this._activeObject:void 0,i={e,target:this._dragSource,subTargets:t,dragSource:this._dragSource,didDrop:n,dropTarget:r};m(this.upperCanvasEl,`drag`,this._onDragProgress),this.fire(`dragend`,i),this._dragSource&&this._dragSource.fire(`dragend`,i),delete this._dragSource,this._onMouseUp(e)}_onDragProgress(e){let t={e,target:this._dragSource,dragSource:this._dragSource,dropTarget:this._draggedoverTarget};this.fire(`drag`,t),this._dragSource&&this._dragSource.fire(`drag`,t)}_onDragOver(e){let t=`dragover`,{currentContainer:n,currentSubTargets:r}=this.findTarget(e),i=this._dragSource,a={e,target:n,subTargets:r,dragSource:i,canDrop:!1,dropTarget:void 0},o;this.fire(t,a),this._fireEnterLeaveEvents(e,n,a),n&&(n.canDrop(e)&&(o=n),n.fire(t,a));for(let n=0;n<r.length;n++){let i=r[n];i.canDrop(e)&&(o=i),i.fire(t,a)}this._renderDragEffects(e,i,o),this._dropTarget=o}_onDragEnter(e){let{currentContainer:t,currentSubTargets:n}=this.findTarget(e),r={e,target:t,subTargets:n,dragSource:this._dragSource};this.fire(`dragenter`,r),this._fireEnterLeaveEvents(e,t,r)}_onDragLeave(e){let{currentSubTargets:t}=this.findTarget(e),n={e,target:this._draggedoverTarget,subTargets:t,dragSource:this._dragSource};this.fire(`dragleave`,n),this._fireEnterLeaveEvents(e,void 0,n),this._renderDragEffects(e,this._dragSource),this._dropTarget=void 0,this._hoveredTargets=[]}_onDrop(e){let{currentContainer:t,currentSubTargets:n}=this.findTarget(e),r=this._basicEventHandler(`drop:before`,{e,target:t,subTargets:n,dragSource:this._dragSource,...f(this,e)});r.didDrop=!1,r.dropTarget=void 0,this._basicEventHandler(`drop`,r),this.fire(`drop:after`,r)}_onContextMenu(e){let{target:t,subTargets:n}=this.findTarget(e),r=this._basicEventHandler(`contextmenu:before`,{e,target:t,subTargets:n});return this.stopContextMenu&&s(e),this._basicEventHandler(`contextmenu`,r),!1}_onClick(e){let t=e.detail;t>3||t<2||(this._cacheTransformEventData(e),t==2&&e.type===`dblclick`&&this._handleEvent(e,`dblclick`),t==3&&this._handleEvent(e,`tripleclick`),this._resetTransformEventData())}fireEventFromPointerEvent(e,t,n,r={}){this._cacheTransformEventData(e);let{target:i,subTargets:a}=this.findTarget(e),o={e,target:i,subTargets:a,...f(this,e),transform:this._currentTransform,...r};this.fire(t,o),i&&i.fire(n,o);for(let e=0;e<a.length;e++)a[e]!==i&&a[e].fire(n,o);this._resetTransformEventData()}getPointerId(e){let t=e.changedTouches;return t?t[0]&&t[0].identifier:this.enablePointerEvents?e.pointerId:-1}_isMainEvent(e){return!0===e.isPrimary||!1!==e.isPrimary&&(e.type===`touchend`&&e.touches.length===0||!e.changedTouches||e.changedTouches[0].identifier===this.mainTouchId)}_onTouchStart(e){this._cacheTransformEventData(e);let t=!this.allowTouchScrolling,n=this._activeObject;this.mainTouchId===void 0&&(this.mainTouchId=this.getPointerId(e)),this.__onMouseDown(e);let{target:r}=this.findTarget(e);(this.isDrawingMode||n&&r===n)&&(t=!0),t&&e.preventDefault();let a=this.upperCanvasEl,o=this._getEventPrefix(),s=i(a);p(s,`touchend`,this._onTouchEnd,d),t&&p(s,`touchmove`,this._onMouseMove,d),m(a,`${o}down`,this._onMouseDown),this._resetTransformEventData()}_onMouseDown(e){this._cacheTransformEventData(e),this.__onMouseDown(e);let t=this.upperCanvasEl,n=this._getEventPrefix();m(t,`${n}move`,this._onMouseMove,d);let r=i(t);p(r,`${n}up`,this._onMouseUp),p(r,`${n}move`,this._onMouseMove,d),this._resetTransformEventData()}_onTouchEnd(e){if(e.touches.length>0)return;this._cacheTransformEventData(e),this.__onMouseUp(e),this._resetTransformEventData(),delete this.mainTouchId;let t=this._getEventPrefix(),n=i(this.upperCanvasEl);m(n,`touchend`,this._onTouchEnd,d),m(n,`touchmove`,this._onMouseMove,d),this._willAddMouseDown&&clearTimeout(this._willAddMouseDown),this._willAddMouseDown=setTimeout(()=>{p(this.upperCanvasEl,`${t}down`,this._onMouseDown),this._willAddMouseDown=0},400)}_onMouseUp(e){this._cacheTransformEventData(e),this.__onMouseUp(e);let t=this.upperCanvasEl,n=this._getEventPrefix();if(this._isMainEvent(e)){let e=i(this.upperCanvasEl);m(e,`${n}up`,this._onMouseUp),m(e,`${n}move`,this._onMouseMove,d),p(t,`${n}move`,this._onMouseMove,d)}this._resetTransformEventData()}_onMouseMove(e){this._cacheTransformEventData(e);let t=this.getActiveObject();!this.allowTouchScrolling&&(!t||!t.shouldStartDragging(e))&&e.preventDefault&&e.preventDefault(),this.__onMouseMove(e),this._resetTransformEventData()}_onResize(){this.calcOffset(),this._resetTransformEventData()}_shouldRender(e){let t=this.getActiveObject();return!!t!=!!e||t&&e&&t!==e}__onMouseUp(e){var t;this._handleEvent(e,`up:before`);let n=this._currentTransform,r=this._isClick,{target:i}=this.findTarget(e),{button:a}=e;if(a)return void((this.fireMiddleClick&&a===1||this.fireRightClick&&a===2)&&this._handleEvent(e,`up`));if(this.isDrawingMode&&this._isCurrentlyDrawing)return void this._onMouseUpInDrawingMode(e);if(!this._isMainEvent(e))return;let s,c,l=!1;if(n&&(this._finalizeCurrentTransform(e),l=n.actionPerformed),!r){let t=i===this._activeObject;this.handleSelection(e),l||(l=this._shouldRender(i)||!t&&i===this._activeObject)}if(i){let{key:t,control:r}=i.findControl(this.getViewportPoint(e),o(e))||{};if(c=t,i.selectable&&i!==this._activeObject&&i.activeOn===`up`)this.setActiveObject(i,e),l=!0;else if(r){let t=r.getMouseUpHandler(e,i,r);t&&(s=this.getScenePoint(e),t.call(r,e,n,s.x,s.y))}i.isMoving=!1}if(n&&(n.target!==i||n.corner!==c)){let t=n.target&&n.target.controls[n.corner],r=t&&t.getMouseUpHandler(e,n.target,t);s=s||this.getScenePoint(e),r&&r.call(t,e,n,s.x,s.y)}this._setCursorFromEvent(e,i),this._handleEvent(e,`up`),this._groupSelector=null,this._currentTransform=null,i&&(i.__corner=void 0),l?this.requestRenderAll():r||(t=this._activeObject)!=null&&t.isEditing||this.renderTop()}_basicEventHandler(e,t){let{target:n,subTargets:r=[]}=t;this.fire(e,t),n&&n.fire(e,t);for(let i=0;i<r.length;i++)r[i]!==n&&r[i].fire(e,t);return t}_handleEvent(e,t,n){let{target:r,subTargets:i}=this.findTarget(e),a={e,target:r,subTargets:i,...f(this,e),transform:this._currentTransform,...t===`down:before`||t===`down`?n:{}};t!==`up:before`&&t!==`up`||(a.isClick=this._isClick),this.fire(`mouse:${t}`,a),r&&r.fire(`mouse${t}`,a);for(let e=0;e<i.length;e++)i[e]!==r&&i[e].fire(`mouse${t}`,a)}_onMouseDownInDrawingMode(e){this._isCurrentlyDrawing=!0,this.getActiveObject()&&(this.discardActiveObject(e),this.requestRenderAll());let t=this.getScenePoint(e);this.freeDrawingBrush&&this.freeDrawingBrush.onMouseDown(t,{e,pointer:t}),this._handleEvent(e,`down`,{alreadySelected:!1})}_onMouseMoveInDrawingMode(e){if(this._isCurrentlyDrawing){let t=this.getScenePoint(e);this.freeDrawingBrush&&this.freeDrawingBrush.onMouseMove(t,{e,pointer:t})}this.setCursor(this.freeDrawingCursor),this._handleEvent(e,`move`)}_onMouseUpInDrawingMode(e){let t=this.getScenePoint(e);this.freeDrawingBrush?this._isCurrentlyDrawing=!!this.freeDrawingBrush.onMouseUp({e,pointer:t}):this._isCurrentlyDrawing=!1,this._handleEvent(e,`up`)}__onMouseDown(e){this._isClick=!0,this._handleEvent(e,`down:before`);let{target:t}=this.findTarget(e),n=!!t&&t===this._activeObject,{button:r}=e;if(r)return void((this.fireMiddleClick&&r===1||this.fireRightClick&&r===2)&&this._handleEvent(e,`down`,{alreadySelected:n}));if(this.isDrawingMode)return void this._onMouseDownInDrawingMode(e);if(!this._isMainEvent(e)||this._currentTransform)return;let i=this._shouldRender(t),a=!1;if(this.handleMultiSelection(e,t)?(t=this._activeObject,a=!0,i=!0):this._shouldClearSelection(e,t)&&this.discardActiveObject(e),this.selection&&(!t||!t.selectable&&!t.isEditing&&t!==this._activeObject)){let t=this.getScenePoint(e);this._groupSelector={x:t.x,y:t.y,deltaY:0,deltaX:0}}if(n=!!t&&t===this._activeObject,t){t.selectable&&t.activeOn===`down`&&this.setActiveObject(t,e);let r=t.findControl(this.getViewportPoint(e),o(e));if(t===this._activeObject&&(r||!a)){this._setupCurrentTransform(e,t,n);let i=r?r.control:void 0,a=this.getScenePoint(e),o=i&&i.getMouseDownHandler(e,t,i);o&&o.call(i,e,this._currentTransform,a.x,a.y)}}i&&(this._objectsToRender=void 0),this._handleEvent(e,`down`,{alreadySelected:n}),i&&this.requestRenderAll()}_resetTransformEventData(){this._targetInfo=this._viewportPoint=this._scenePoint=void 0}_cacheTransformEventData(e){this._resetTransformEventData(),this._viewportPoint=this.getViewportPoint(e),this._scenePoint=c(this._viewportPoint,void 0,this.viewportTransform),this._targetInfo=this.findTarget(e),this._currentTransform&&(this._targetInfo.target=this._currentTransform.target)}__onMouseMove(e){if(this._isClick=!1,this._handleEvent(e,`move:before`),this.isDrawingMode)return void this._onMouseMoveInDrawingMode(e);if(!this._isMainEvent(e))return;let t=this._groupSelector;if(t){let n=this.getScenePoint(e);t.deltaX=n.x-t.x,t.deltaY=n.y-t.y,this.renderTop()}else if(this._currentTransform)this._transformObject(e);else{let{target:t}=this.findTarget(e);this._setCursorFromEvent(e,t),this._fireOverOutEvents(e,t)}this.textEditingManager.onMouseMove(e),this._handleEvent(e,`move`)}_fireOverOutEvents(e,t){let{_hoveredTarget:n,_hoveredTargets:r}=this,{subTargets:i,currentTarget:a}=this.findTarget(e),o=Math.max(r.length,i.length);this.fireSyntheticInOutEvents(`mouse`,{e,target:t,oldTarget:n,actualTarget:a,oldActualTarget:this._hoveredActualTarget,fireCanvas:!0});for(let a=0;a<o;a++)i[a]===t||r[a]&&r[a]===n||this.fireSyntheticInOutEvents(`mouse`,{e,target:i[a],oldTarget:r[a]});this._hoveredActualTarget=a,this._hoveredTarget=t,this._hoveredTargets=i}_fireEnterLeaveEvents(e,t,n){let r=this._draggedoverTarget,i=this._hoveredTargets,{subTargets:a}=this.findTarget(e),o=Math.max(i.length,a.length);this.fireSyntheticInOutEvents(`drag`,{...n,target:t,oldTarget:r,fireCanvas:!0});for(let e=0;e<o;e++)this.fireSyntheticInOutEvents(`drag`,{...n,target:a[e],oldTarget:i[e]});this._draggedoverTarget=t}fireSyntheticInOutEvents(e,{target:t,oldTarget:n,actualTarget:r,oldActualTarget:i,fireCanvas:a,e:o,...s}){let{targetIn:c,targetOut:l,canvasIn:u,canvasOut:d}=h[e],p=n!==t,m=i!==r,g=t&&p,_=r&&m,v=n&&p,y=i&&m,b={...s,e:o,...f(this,o)},x={...b,target:n,nextTarget:t,actualTarget:i,nextActualTarget:r};(v||y)&&a&&this.fire(d,x),v&&n.fire(l,x),y&&n!==i&&i.fire(l,x);let S={...b,target:t,previousTarget:n,actualTarget:r,previousActualTarget:i};(g||_)&&a&&this.fire(u,S),g&&t.fire(c,S),_&&r!==t&&r.fire(c,S)}_transformObject(e){let t=this.getScenePoint(e),n=this._currentTransform,r=n.target,i=r.group?c(t,void 0,r.group.calcTransformMatrix()):t;n.shiftKey=e.shiftKey,n.altKey=!!this.centeredKey&&e[this.centeredKey],this._performTransformAction(e,n,i),n.actionPerformed&&this.requestRenderAll()}_performTransformAction(e,t,n){let{action:r,actionHandler:i,target:a}=t,o=!!i&&i(e,t,n.x,n.y);o&&a.setCoords(),r===`drag`&&o&&(t.target.isMoving=!0,this.setCursor(t.target.moveCursor||this.moveCursor)),t.actionPerformed=t.actionPerformed||o}_setCursorFromEvent(e,t){if(!t)return void this.setCursor(this.defaultCursor);let n=t.hoverCursor||this.hoverCursor,i=r(this._activeObject)?this._activeObject:null,a=(!i||t.group!==i)&&t.findControl(this.getViewportPoint(e));if(a){let{control:n,coord:r}=a;this.setCursor(n.cursorStyleHandler(e,n,t,r))}else{if(t.subTargetCheck){let{subTargets:t}=this.findTarget(e);t.concat().reverse().forEach(e=>{n=e.hoverCursor||n})}this.setCursor(n)}}handleMultiSelection(e,n){let i=this._activeObject,a=r(i);if(i&&this._isSelectionKeyPressed(e)&&this.selection&&n&&n.selectable&&(i!==n||a)&&(a||!n.isDescendantOf(i)&&!i.isDescendantOf(n))&&!n.onSelect({e})&&!i.getActiveControl()){if(a){let t=i.getObjects(),r=[];if(n===i){let i=this.getScenePoint(e),a=this.searchPossibleTargets(t,i);if(a.target?(n=a.target,r=a.subTargets):(a=this.searchPossibleTargets(this._objects,i),n=a.target,r=a.subTargets),!n||!n.selectable)return!1}n.group===i?(i.remove(n),this._hoveredTarget=n,this._hoveredTargets=r,i.size()===1&&this._setActiveObject(i.item(0),e)):(i.multiSelectAdd(n),this._hoveredTarget=i,this._hoveredTargets=r),this._fireSelectionEvents(t,e)}else{i.isEditing&&i.exitEditing();let r=new(t.getClass(`ActiveSelection`))([],{canvas:this});r.multiSelectAdd(i,n),this._hoveredTarget=r,this._setActiveObject(r,e),this._fireSelectionEvents([i],e)}return!0}return!1}handleSelection(e){if(!this.selection||!this._groupSelector)return!1;let{x:r,y:i,deltaX:a,deltaY:o}=this._groupSelector,s=new n(r,i),c=s.add(new n(a,o)),l=s.min(c),u=s.max(c).subtract(l),d=this.collectObjects({left:l.x,top:l.y,width:u.x,height:u.y},{includeIntersecting:!this.selectionFullyContained}),f=s.eq(c)?d[0]?[d[0]]:[]:d.length>1?d.filter(t=>!t.onSelect({e})).reverse():d;if(f.length===1)this.setActiveObject(f[0],e);else if(f.length>1){let n=t.getClass(`ActiveSelection`);this.setActiveObject(new n(f,{canvas:this}),e)}return this._groupSelector=null,!0}toCanvasElement(e=1,t){let{upper:n}=this.elements;n.ctx=void 0;let r=super.toCanvasElement(e,t);return n.ctx=n.el.getContext(`2d`),r}clear(){this.textEditingManager.clear(),super.clear()}destroy(){this.removeListeners(),this.textEditingManager.dispose(),super.destroy()}};export{g as Canvas};
//# sourceMappingURL=Canvas.min.mjs.map