126 lines
4.4 KiB
JavaScript
126 lines
4.4 KiB
JavaScript
class DragDropManager {
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dragContainer;
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wrapper;
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pageDirection;
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movePageTo;
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pageDragging;
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draggelEl;
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draggedImageEl;
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hoveredEl;
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endInsertionElement;
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constructor(id, wrapperId) {
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this.dragContainer = document.getElementById(id);
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this.pageDirection = document.documentElement.getAttribute("lang-direction");
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this.wrapper = document.getElementById(wrapperId);
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this.pageDragging = false;
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this.hoveredEl = undefined;
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this.draggelEl = undefined
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this.draggedImageEl = undefined;
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var styleElement = document.createElement('link');
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styleElement.rel = 'stylesheet';
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styleElement.href = 'css/dragdrop.css'
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document.head.appendChild(styleElement);
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const div = document.createElement('div');
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div.classList.add('drag-manager_endpoint');
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div.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-file-earmark-arrow-down" viewBox="0 0 16 16">
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<path d="M8.5 6.5a.5.5 0 0 0-1 0v3.793L6.354 9.146a.5.5 0 1 0-.708.708l2 2a.5.5 0 0 0 .708 0l2-2a.5.5 0 0 0-.708-.708L8.5 10.293V6.5z"/>
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<path d="M14 14V4.5L9.5 0H4a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2zM9.5 3A1.5 1.5 0 0 0 11 4.5h2V14a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1h5.5v2z"/>
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</svg>`
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this.endInsertionElement = div;
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this.startDraggingPage = this.startDraggingPage.bind(this);
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this.onDragEl = this.onDragEl.bind(this);
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this.stopDraggingPage = this.stopDraggingPage.bind(this);
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this.adapt(div);
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}
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startDraggingPage(div,) {
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this.pageDragging = true;
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this.draggedEl = div;
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const img = div.querySelector('img');
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div.classList.add('drag-manager_dragging');
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const imageSrc = img.src;
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const imgEl = document.createElement('img');
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imgEl.classList.add('dragged-img');
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imgEl.src = imageSrc;
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this.draggedImageEl = imgEl;
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imgEl.style.visibility = 'hidden';
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imgEl.style.transform = `rotate(${img.style.rotate === '' ? '0deg' : img.style.rotate}) translate(-50%, -50%)`;
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this.dragContainer.appendChild(imgEl);
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window.addEventListener('mouseup', this.stopDraggingPage)
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window.addEventListener('mousemove', this.onDragEl)
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this.wrapper.classList.add('drag-manager_dragging-container');
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this.wrapper.appendChild(this.endInsertionElement);
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}
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onDragEl(mouseEvent) {
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const { clientX, clientY } = mouseEvent;
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if(this.draggedImageEl) {
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this.draggedImageEl.style.visibility = 'visible';
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this.draggedImageEl.style.left = `${clientX}px`;
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this.draggedImageEl.style.top = `${clientY}px`;
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}
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}
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stopDraggingPage() {
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window.removeEventListener('mousemove', this.onDragEl);
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this.wrapper.classList.remove('drag-manager_dragging-container');
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this.wrapper.removeChild(this.endInsertionElement);
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window.removeEventListener('mouseup', this.stopDraggingPage)
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this.draggedImageEl = undefined;
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this.pageDragging = false;
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this.draggedEl.classList.remove('drag-manager_dragging');
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this.hoveredEl?.classList.remove('drag-manager_draghover');
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this.dragContainer.childNodes.forEach((dragChild) => {
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this.dragContainer.removeChild(dragChild);
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})
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if(!this.hoveredEl) {
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return;
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}
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if(this.hoveredEl === this.endInsertionElement) {
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this.movePageTo(this.draggedEl);
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return;
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}
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this.movePageTo(this.draggedEl, this.hoveredEl);
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}
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setActions({ movePageTo }) {
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this.movePageTo = movePageTo;
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}
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adapt(div) {
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const onDragStart = () => {
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this.startDraggingPage(div);
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}
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const onMouseEnter = () => {
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if (this.pageDragging) {
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this.hoveredEl = div;
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div.classList.add('drag-manager_draghover');
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}
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}
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const onMouseLeave = () => {
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this.hoveredEl = undefined
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div.classList.remove('drag-manager_draghover');
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}
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div.addEventListener('dragstart', onDragStart);
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div.addEventListener('mouseenter', onMouseEnter);
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div.addEventListener('mouseleave', onMouseLeave);
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return div;
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}
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}
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export default DragDropManager;
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