mirror of
https://github.com/TryGhost/Ghost.git
synced 2024-11-28 22:43:30 +03:00
44b9b0fc94
no issue - fixed all `no-shadow` linter warnings - changed `no-shadow` eslint rule from `warn` to `error` so we don't re-introduce shadowed variables in the future
714 lines
27 KiB
JavaScript
714 lines
27 KiB
JavaScript
import * as constants from '../lib/dnd/constants';
|
|
import * as utils from '../lib/dnd/utils';
|
|
import Container from '../lib/dnd/container';
|
|
import ScrollHandler from '../lib/dnd/scroll-handler';
|
|
import Service from '@ember/service';
|
|
import {A} from '@ember/array';
|
|
import {alias} from '@ember/object/computed';
|
|
import {didCancel, task, waitForProperty} from 'ember-concurrency';
|
|
import {run} from '@ember/runloop';
|
|
import {inject as service} from '@ember/service';
|
|
|
|
// this service allows registration of "containers"
|
|
// containers can have both draggables and droppables
|
|
// - draggables are elements that can be dragged
|
|
// - droppables are elements that should respond if dragged over
|
|
// containers will handle the drag start/drag over/drop events triggered by this service
|
|
// this service keeps track of all containers and has centralized event handling for mouse events
|
|
|
|
export default Service.extend({
|
|
koenigUi: service(),
|
|
|
|
containers: null,
|
|
ghostInfo: null,
|
|
grabbedElement: null, // TODO: standardise on draggableInfo.element
|
|
sourceContainer: null,
|
|
|
|
isDragging: alias('koenigUi.isDragging'),
|
|
|
|
_eventHandlers: null,
|
|
|
|
// lifecycle ---------------------------------------------------------------
|
|
|
|
init() {
|
|
this._super(...arguments);
|
|
|
|
this.containers = A([]);
|
|
this.scrollHandler = new ScrollHandler();
|
|
this._eventHandlers = {};
|
|
this._transformedDroppables = A([]);
|
|
|
|
// bind any raf handler functions
|
|
this._rafUpdateGhostElementPosition = run.bind(this, this._updateGhostElementPosition);
|
|
|
|
// set up document event listeners
|
|
this._addGrabListeners();
|
|
|
|
// append body elements
|
|
this._appendGhostContainerElement();
|
|
},
|
|
|
|
willDestroy() {
|
|
this._super(...arguments);
|
|
|
|
// reset any on-going drag and remove any temporary listeners
|
|
this.cleanup();
|
|
|
|
// clean up document event listeners
|
|
this._removeGrabListeners();
|
|
|
|
// remove body elements
|
|
this._removeDropIndicator();
|
|
this._removeGhostContainerElement();
|
|
},
|
|
|
|
// interface ---------------------------------------------------------------
|
|
|
|
registerContainer(element, options) {
|
|
let container = new Container(element, options);
|
|
this.containers.pushObject(container);
|
|
|
|
// return a minimal interface to the container because this service
|
|
// should be used for management rather than the container class instance
|
|
return {
|
|
enableDrag: () => {
|
|
container.enableDrag();
|
|
},
|
|
|
|
disableDrag: () => {
|
|
container.disableDrag();
|
|
},
|
|
|
|
refresh: () => {
|
|
// re-calculate draggables/droppables
|
|
container.refresh();
|
|
},
|
|
|
|
destroy: () => {
|
|
// unregister container
|
|
this.containers.removeObject(container);
|
|
}
|
|
};
|
|
},
|
|
|
|
// remove all containers and event handlers, useful when leaving an editor route
|
|
cleanup() {
|
|
this.containers = A([]);
|
|
// cancel any tasks and remove intermittent event handlers
|
|
this._resetDrag();
|
|
},
|
|
|
|
// event handlers ----------------------------------------------------------
|
|
|
|
// we use a custom "drag" detection rather than native drag events because it
|
|
// allows better tracking across multiple containers and gives more flexibilty
|
|
// for handling touch events later if required
|
|
_onMouseDown(event) {
|
|
if (!this.isDragging && (event.button === undefined || event.button === 0)) {
|
|
this.grabbedElement = utils.getParent(event.target, constants.DRAGGABLE_SELECTOR);
|
|
|
|
if (this.grabbedElement) {
|
|
// some elements may have explicitly disabled dragging such as
|
|
// captions where we want to allow text selection instead
|
|
let dragDisabledElement = utils.getParent(event.target, constants.DRAG_DISABLED_SELECTOR);
|
|
if (dragDisabledElement && this.grabbedElement.contains(dragDisabledElement)) {
|
|
return;
|
|
}
|
|
|
|
let containerElement = utils.getParent(this.grabbedElement, constants.CONTAINER_SELECTOR);
|
|
let container = this.containers.findBy('element', containerElement);
|
|
this.sourceContainer = container;
|
|
|
|
if (container.isDragEnabled) {
|
|
this._waitForDragStart.perform(event).then(() => {
|
|
// stop the drag creating a selection
|
|
window.getSelection().removeAllRanges();
|
|
// set up the drag details
|
|
this._initiateDrag(event);
|
|
}).catch((error) => {
|
|
// ignore cancelled tasks and throw unrecognized errors
|
|
if (!didCancel(error)) {
|
|
throw error;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_onMouseMove(event) {
|
|
event.preventDefault();
|
|
|
|
if (this.draggableInfo) {
|
|
this.draggableInfo.mousePosition.x = event.clientX;
|
|
this.draggableInfo.mousePosition.y = event.clientY;
|
|
|
|
this._handleDrag(event);
|
|
}
|
|
},
|
|
|
|
_onMouseUp(/*event*/) {
|
|
if (this.draggableInfo) {
|
|
let success = false;
|
|
|
|
// TODO: accept object rather than positioned args? OR, should the
|
|
// droppable data be stored on draggableInfo?
|
|
if (this._currentOverContainer) {
|
|
success = this._currentOverContainer.onDrop(
|
|
this.draggableInfo,
|
|
this._currentOverDroppableElem,
|
|
this._currentOverDroppablePosition
|
|
);
|
|
}
|
|
|
|
this.containers.forEach((container) => {
|
|
container.onDropEnd(this.draggableInfo, success);
|
|
});
|
|
}
|
|
|
|
// remove drag info and any ghost element
|
|
this._resetDrag();
|
|
},
|
|
|
|
_onKeyDown(event) {
|
|
// cancel drag on escape
|
|
if (this.isDragging && event.key === 'Escape') {
|
|
this._resetDrag();
|
|
}
|
|
},
|
|
|
|
// private -----------------------------------------------------------------
|
|
|
|
// called when we detect a mousedown event on a draggable element. Sets
|
|
// up temporary event handlers for mousemove, mouseup, and drag. If
|
|
// sufficient movement is detected before the mouse is released and we don't
|
|
// detect a native drag event then the task will resolve. Mouseup or drag
|
|
// events will cancel the task which will result in a rejected promise if
|
|
// the task has been cast to a promise
|
|
_waitForDragStart: task(function* (startEvent) {
|
|
let moveThreshold = 1;
|
|
|
|
this.set('_dragStartConditionsMet', false);
|
|
|
|
let onMove = (event) => {
|
|
let {clientX: currentX, clientY: currentY} = event;
|
|
|
|
if (
|
|
Math.abs(startEvent.clientX - currentX) > moveThreshold ||
|
|
Math.abs(startEvent.clientY - currentY) > moveThreshold
|
|
) {
|
|
this.set('_dragStartConditionsMet', true);
|
|
}
|
|
};
|
|
|
|
let onUp = () => {
|
|
this._waitForDragStart.cancelAll();
|
|
};
|
|
|
|
// give preference to native drag/drop handlers
|
|
let onHtmlDrag = () => {
|
|
this._waitForDragStart.cancelAll();
|
|
};
|
|
|
|
// register local events
|
|
document.addEventListener('mousemove', onMove, {passive: false});
|
|
document.addEventListener('mouseup', onUp, {passive: false});
|
|
document.addEventListener('drag', onHtmlDrag, {passive: false});
|
|
|
|
try {
|
|
yield waitForProperty(this, '_dragStartConditionsMet');
|
|
} finally {
|
|
// finally is always called on task cancellation
|
|
this.set('_dragStartConditionsMet', false);
|
|
document.removeEventListener('mousemove', onMove, {passive: false});
|
|
document.removeEventListener('mouseup', onUp, {passive: false});
|
|
document.removeEventListener('drag', onHtmlDrag, {passive: false});
|
|
}
|
|
}).keepLatest(),
|
|
|
|
_initiateDrag(startEvent) {
|
|
this.set('isDragging', true);
|
|
utils.applyUserSelect(document.body, 'none');
|
|
|
|
let draggableInfo = this.sourceContainer.getDraggableInfo(this.grabbedElement);
|
|
|
|
if (!draggableInfo) {
|
|
this._resetDrag();
|
|
return;
|
|
}
|
|
|
|
// append the drop indicator if it doesn't already exist - we append to
|
|
// the editor's element rather than body so it needs to be re-appended
|
|
// each time a drag is initiated in a new editor instance
|
|
this._appendDropIndicator();
|
|
|
|
draggableInfo = Object.assign({}, draggableInfo, {
|
|
element: this.grabbedElement,
|
|
mousePosition: {
|
|
x: startEvent.clientX,
|
|
y: startEvent.clientY
|
|
}
|
|
});
|
|
this.set('draggableInfo', draggableInfo);
|
|
|
|
this.containers.forEach((container) => {
|
|
container.onDragStart(draggableInfo);
|
|
});
|
|
|
|
// style the dragged element
|
|
this.draggableInfo.element.style.opacity = 0.5;
|
|
|
|
// create the ghost element and cache it's position so avoid costly
|
|
// getBoundingClientRect calls in the mousemove handler
|
|
let ghostElement = this.sourceContainer.createGhostElement(this.draggableInfo);
|
|
if (ghostElement && ghostElement instanceof HTMLElement) {
|
|
this._ghostContainerElement.appendChild(ghostElement);
|
|
let ghostElementRect = ghostElement.getBoundingClientRect();
|
|
let ghostInfo = {
|
|
element: ghostElement,
|
|
positionX: ghostElementRect.x,
|
|
positionY: ghostElementRect.y
|
|
};
|
|
this.set('ghostInfo', ghostInfo);
|
|
} else {
|
|
// eslint-disable-next-line
|
|
console.warn('container.createGhostElement did not return an element', this.draggableInfo, {ghostElement});
|
|
this._resetDrag();
|
|
return;
|
|
}
|
|
|
|
// add watches to follow the drag/drop
|
|
this._addMoveListeners();
|
|
this._addReleaseListeners();
|
|
this._addKeyDownListeners();
|
|
|
|
// start ghost element following the mouse
|
|
requestAnimationFrame(this._rafUpdateGhostElementPosition);
|
|
|
|
// let the scroll handler select the scrollable element
|
|
this.scrollHandler.dragStart(this.draggableInfo);
|
|
|
|
// prevent the pointer showing the text caret over text content whilst dragging
|
|
document.querySelectorAll('[data-kg="editor"]').forEach((el) => {
|
|
el.style.setProperty('cursor', 'default', 'important');
|
|
});
|
|
|
|
// prevent card hover showing whilst dragging
|
|
this._elementsWithHoverRemoved = document.querySelectorAll('.kg-card-hover');
|
|
this._elementsWithHoverRemoved.forEach((el) => {
|
|
el.classList.remove('kg-card-hover');
|
|
});
|
|
|
|
this._handleDrag();
|
|
},
|
|
|
|
_handleDrag() {
|
|
// hide the ghost element so that it's not picked up by elementFromPoint
|
|
// when determining the target element under the mouse
|
|
this._ghostContainerElement.hidden = true;
|
|
let target = document.elementFromPoint(
|
|
this.draggableInfo.mousePosition.x,
|
|
this.draggableInfo.mousePosition.y
|
|
);
|
|
this.draggableInfo.target = target;
|
|
this._ghostContainerElement.hidden = false;
|
|
|
|
this.scrollHandler.dragMove(this.draggableInfo);
|
|
|
|
let overContainerElem = utils.getParent(target, constants.CONTAINER_SELECTOR);
|
|
let overDroppableElem = utils.getParent(target, constants.DROPPABLE_SELECTOR);
|
|
|
|
// it's possible for the mouse to be over a "dead" area when dragging over
|
|
// the position indicator, in this case we want to prevent a parent
|
|
// container's droppable from being picked up
|
|
if (!overContainerElem || !overContainerElem.contains(overDroppableElem)) {
|
|
overDroppableElem = null;
|
|
}
|
|
|
|
let isLeavingContainer = this._currentOverContainerElem && overContainerElem !== this._currentOverContainerElem;
|
|
let isLeavingDroppable = this._currentOverDroppableElem && overDroppableElem !== this._currentOverDroppableElem;
|
|
let isOverContainer = overContainerElem && overContainerElem !== this._currentOverContainer;
|
|
let isOverDroppable = overDroppableElem;
|
|
|
|
if (isLeavingContainer) {
|
|
this._currentOverContainer.onDragLeaveContainer();
|
|
this._currentOverContainer = null;
|
|
this._currentOverContainerElem = null;
|
|
this._hideDropIndicator();
|
|
}
|
|
|
|
if (isOverContainer) {
|
|
let container = this.containers.findBy('element', overContainerElem);
|
|
if (!this._currentOverContainer) {
|
|
container.onDragEnterContainer();
|
|
}
|
|
|
|
this._currentOverContainer = container;
|
|
this._currentOverContainerElem = overContainerElem;
|
|
}
|
|
|
|
if (isLeavingDroppable) {
|
|
if (this._currentOverContainer) {
|
|
this._currentOverContainer.onDragLeaveDroppable(overDroppableElem);
|
|
}
|
|
this._currentOverDroppableElem = null;
|
|
}
|
|
|
|
if (isOverDroppable) {
|
|
// get position within the droppable
|
|
// TODO: cache droppable rects to avoid costly queries whilst dragging
|
|
let rect = overDroppableElem.getBoundingClientRect();
|
|
let inTop = this.draggableInfo.mousePosition.y < (rect.y + rect.height / 2);
|
|
let inLeft = this.draggableInfo.mousePosition.x < (rect.x + rect.width / 2);
|
|
let position = `${inTop ? 'top' : 'bottom'}-${inLeft ? 'left' : 'right'}`;
|
|
|
|
if (!this._currentOverDroppableElem) {
|
|
this._currentOverContainer.onDragEnterDroppable(overDroppableElem, position);
|
|
}
|
|
|
|
if (overDroppableElem !== this._currentOverDroppableElem || position !== this._currentOverDroppablePosition) {
|
|
this._currentOverDroppableElem = overDroppableElem;
|
|
this._currentOverDroppablePosition = position;
|
|
this._currentOverContainer.onDragOverDroppable(overDroppableElem, position);
|
|
|
|
// container.getIndicatorPosition returns false if the drop is not allowed
|
|
let indicatorPosition = this._currentOverContainer.getIndicatorPosition(this.draggableInfo, overDroppableElem, position);
|
|
if (indicatorPosition) {
|
|
this.draggableInfo.insertIndex = indicatorPosition.insertIndex;
|
|
this._showDropIndicator(indicatorPosition);
|
|
} else {
|
|
this._hideDropIndicator();
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_updateGhostElementPosition() {
|
|
if (this.isDragging) {
|
|
requestAnimationFrame(this._rafUpdateGhostElementPosition);
|
|
}
|
|
|
|
let {ghostInfo, draggableInfo} = this;
|
|
if (draggableInfo && ghostInfo) {
|
|
let left = (ghostInfo.positionX * -1) + draggableInfo.mousePosition.x;
|
|
let top = (ghostInfo.positionY * -1) + draggableInfo.mousePosition.y;
|
|
ghostInfo.element.style.transform = `translate3d(${left}px, ${top}px, 0)`;
|
|
}
|
|
},
|
|
|
|
// direction = horizontal/vertical
|
|
// horizontal = beforeElems shift left, afterElems shift right
|
|
// vertical = afterElems shift down
|
|
// position = above/below/left/right, used to place the indicator
|
|
_showDropIndicator({direction, position, beforeElems, afterElems}) {
|
|
let dropIndicator = this._dropIndicator;
|
|
|
|
// reset everything except insertIndex before re-displaying indicator
|
|
this._hideDropIndicator({clearInsertIndex: false});
|
|
|
|
if (direction === 'horizontal') {
|
|
beforeElems.forEach((elem) => {
|
|
elem.style.transform = 'translate3d(-30px, 0, 0)';
|
|
elem.style.transitionDuration = '250ms';
|
|
this._transformedDroppables.push(elem);
|
|
});
|
|
|
|
afterElems.forEach((elem) => {
|
|
elem.style.transform = 'translate3d(30px, 0, 0)';
|
|
elem.style.transitionDuration = '250ms';
|
|
this._transformedDroppables.push(elem);
|
|
});
|
|
|
|
let leftAdjustment = 0;
|
|
let droppable = this._currentOverDroppableElem;
|
|
let droppableStyles = getComputedStyle(droppable);
|
|
// calculate position based on offset parent to avoid the transform
|
|
// being accounted for
|
|
let parentRect = droppable.offsetParent.getBoundingClientRect();
|
|
let offsetLeft = parentRect.left + droppable.offsetLeft;
|
|
let offsetTop = parentRect.top + droppable.offsetTop;
|
|
|
|
if (position === 'left') {
|
|
leftAdjustment -= parseInt(droppableStyles.marginLeft);
|
|
} else {
|
|
leftAdjustment += parseInt(droppable.offsetWidth) + parseInt(droppableStyles.marginRight);
|
|
}
|
|
|
|
// account for indicator width
|
|
leftAdjustment -= 2;
|
|
|
|
let dropIndicatorParentRect = dropIndicator.parentNode.getBoundingClientRect();
|
|
let lastLeft = parseInt(dropIndicator.style.left);
|
|
let lastTop = parseInt(dropIndicator.style.top);
|
|
let newLeft = offsetLeft + leftAdjustment - dropIndicatorParentRect.left;
|
|
let newTop = offsetTop - dropIndicatorParentRect.top;
|
|
let newHeight = droppable.offsetHeight;
|
|
|
|
// if indicator hasn't moved, keep it showing, otherwise wait for
|
|
// the transform transitions to almost finish before re-positioning
|
|
// and showing
|
|
// NOTE: +- 1px is due to sub-pixel positioning of droppables
|
|
if (
|
|
newTop >= lastTop - 1 && newTop <= lastTop + 1 &&
|
|
newLeft >= lastLeft - 1 && newLeft <= lastLeft + 1
|
|
) {
|
|
dropIndicator.style.opacity = 1;
|
|
} else {
|
|
dropIndicator.style.opacity = 0;
|
|
|
|
this._dropIndicatorTimeout = run.later(this, function () {
|
|
dropIndicator.style.width = '4px';
|
|
dropIndicator.style.height = `${newHeight}px`;
|
|
dropIndicator.style.left = `${newLeft}px`;
|
|
dropIndicator.style.top = `${newTop}px`;
|
|
dropIndicator.style.opacity = 1;
|
|
}, 150);
|
|
}
|
|
}
|
|
|
|
if (direction === 'vertical') {
|
|
let transformSize = 60;
|
|
let droppable = this._currentOverDroppableElem;
|
|
let topElement, bottomElement;
|
|
|
|
if (position === 'top') {
|
|
topElement = utils.getPreviousSibling(droppable, constants.DROPPABLE_SELECTOR);
|
|
bottomElement = droppable;
|
|
} else if (position === 'bottom') {
|
|
topElement = droppable;
|
|
bottomElement = utils.getNextSibling(droppable, constants.DROPPABLE_SELECTOR);
|
|
}
|
|
|
|
// marginTop of the first element affects the offset of the
|
|
// children so it needs to be taken into account
|
|
let firstElement = (topElement || bottomElement).parentElement.children[0];
|
|
let firstElementStyles = getComputedStyle(firstElement);
|
|
let firstTopMargin = parseInt(firstElementStyles.marginTop);
|
|
|
|
let newWidth = droppable.offsetWidth;
|
|
let newLeft = droppable.offsetLeft;
|
|
let newTop;
|
|
|
|
if (topElement && bottomElement) {
|
|
let topElementStyles = getComputedStyle(topElement);
|
|
let bottomElementStyles = getComputedStyle(bottomElement);
|
|
|
|
let offsetTop = bottomElement.offsetTop;
|
|
|
|
let topMargin = parseInt(topElementStyles.marginBottom);
|
|
let bottomMargin = parseInt(bottomElementStyles.marginTop);
|
|
let marginHeight = topMargin + bottomMargin;
|
|
|
|
newTop = offsetTop - (marginHeight / 2) + firstTopMargin;
|
|
} else if (topElement) {
|
|
// at the bottom of the container
|
|
newTop = topElement.offsetTop + topElement.offsetHeight + firstTopMargin;
|
|
} else if (bottomElement) {
|
|
// at the top of the container, place the indicator 0px from the top
|
|
newTop = -26; // account for later adjustments and indicator height
|
|
transformSize = 30; // halve normal adjustment because there's no gap needed between top element
|
|
}
|
|
|
|
// account for indicator height
|
|
newTop -= 2;
|
|
|
|
// vertical always pushes elements down
|
|
newTop += 30;
|
|
|
|
// if indicator hasn't moved, keep it showing, otherwise wait for
|
|
// the transform transitions to almost finish before re-positioning
|
|
// and showing
|
|
// NOTE: +- 1px is due to sub-pixel positioning of droppables
|
|
let lastLeft = parseInt(dropIndicator.style.left);
|
|
let lastTop = parseInt(dropIndicator.style.top);
|
|
|
|
if (
|
|
newTop >= lastTop - 1 && newTop <= lastTop + 1 &&
|
|
newLeft >= lastLeft - 1 && newLeft <= lastLeft + 1
|
|
) {
|
|
dropIndicator.style.opacity = 1;
|
|
} else {
|
|
dropIndicator.style.opacity = 0;
|
|
|
|
this._dropIndicatorTimeout = run.later(this, function () {
|
|
dropIndicator.style.height = '4px';
|
|
dropIndicator.style.width = `${newWidth}px`;
|
|
dropIndicator.style.left = `${newLeft}px`;
|
|
dropIndicator.style.top = `${newTop}px`;
|
|
dropIndicator.style.opacity = 1;
|
|
}, 150);
|
|
}
|
|
|
|
// always update the droppable transforms so that re-positining in
|
|
// the same place still moves the elements. Effectively a no-op if
|
|
// the styles already exist
|
|
beforeElems.forEach((elem) => {
|
|
elem.style.transform = 'translate3d(0, 0, 0)';
|
|
elem.style.transitionDuration = '250ms';
|
|
this._transformedDroppables.push(elem);
|
|
});
|
|
|
|
afterElems.forEach((elem) => {
|
|
elem.style.transform = `translate3d(0, ${transformSize}px, 0)`;
|
|
elem.style.transitionDuration = '250ms';
|
|
this._transformedDroppables.push(elem);
|
|
});
|
|
}
|
|
},
|
|
|
|
_hideDropIndicator({clearInsertIndex = true} = {}) {
|
|
// make sure the indicator isn't shown due to a running timeout
|
|
run.cancel(this._dropIndicatorTimeout);
|
|
|
|
// clear droppable insert index unless instructed not to (eg, when
|
|
// resetting the display before re-positioning the indicator)
|
|
if (clearInsertIndex && this.draggableInfo) {
|
|
delete this.draggableInfo.insertIndex;
|
|
}
|
|
|
|
// reset all transforms
|
|
this._transformedDroppables.forEach((elem) => {
|
|
elem.style.transform = '';
|
|
});
|
|
this.transformedDroppables = A([]);
|
|
|
|
// hide drop indicator
|
|
if (this._dropIndicator) {
|
|
this._dropIndicator.style.opacity = 0;
|
|
}
|
|
},
|
|
|
|
_resetDrag() {
|
|
this._waitForDragStart.cancelAll();
|
|
this._hideDropIndicator();
|
|
this._removeMoveListeners();
|
|
this._removeReleaseListeners();
|
|
|
|
this.scrollHandler.dragStop();
|
|
|
|
if (this.grabbedElement) {
|
|
this.grabbedElement.style.opacity = '';
|
|
}
|
|
|
|
this.set('isDragging', false);
|
|
this.set('grabbedElement', null);
|
|
this.set('sourceContainer', null);
|
|
|
|
if (this.ghostInfo) {
|
|
this.ghostInfo.element.remove();
|
|
this.set('ghostInfo', null);
|
|
}
|
|
|
|
this.containers.forEach((container) => {
|
|
container.onDragEnd();
|
|
});
|
|
|
|
if (this._elementsWithHoverRemoved) {
|
|
this._elementsWithHoverRemoved.forEach((el) => {
|
|
el.classList.add('kg-card-hover');
|
|
});
|
|
}
|
|
delete this._elementsWithHoverRemoved;
|
|
|
|
utils.applyUserSelect(document.body, '');
|
|
document.querySelectorAll('[data-kg="editor"]').forEach((el) => {
|
|
el.style.cursor = '';
|
|
});
|
|
},
|
|
|
|
_appendDropIndicator() {
|
|
let dropIndicator = document.querySelector(`#${constants.DROP_INDICATOR_ID}`);
|
|
if (!dropIndicator) {
|
|
dropIndicator = document.createElement('div');
|
|
dropIndicator.id = constants.DROP_INDICATOR_ID;
|
|
dropIndicator.classList.add('bg-blue', 'br-pill');
|
|
dropIndicator.style.position = 'absolute';
|
|
dropIndicator.style.opacity = 0;
|
|
dropIndicator.style.width = '4px';
|
|
dropIndicator.style.height = 0;
|
|
dropIndicator.style.zIndex = constants.DROP_INDICATOR_ZINDEX;
|
|
dropIndicator.style.pointerEvents = 'none';
|
|
|
|
// TODO: the scrollableElement should probably be configurable, it
|
|
// may need to be set on a per-container basis in case there are
|
|
// scrollable containers within a card
|
|
let scrollableElement = document.querySelector('.koenig-editor')
|
|
|| utils.getDocumentScrollingElement();
|
|
scrollableElement.appendChild(dropIndicator);
|
|
}
|
|
this._dropIndicator = dropIndicator;
|
|
},
|
|
|
|
_appendGhostContainerElement() {
|
|
if (!this._ghostContainerElement) {
|
|
let ghostContainerElement = document.createElement('div');
|
|
ghostContainerElement.id = constants.GHOST_CONTAINER_ID;
|
|
ghostContainerElement.style.position = 'fixed';
|
|
ghostContainerElement.style.width = '100%';
|
|
document.body.appendChild(ghostContainerElement);
|
|
this._ghostContainerElement = ghostContainerElement;
|
|
}
|
|
},
|
|
|
|
_removeDropIndicator() {
|
|
if (this._dropIndicator) {
|
|
this._dropIndicator.remove();
|
|
}
|
|
},
|
|
|
|
_removeGhostContainerElement() {
|
|
if (this.ghostContainerElement) {
|
|
this.ghostContainerElement.remove();
|
|
}
|
|
},
|
|
|
|
_addGrabListeners() {
|
|
this._addEventListener('mousedown', this._onMouseDown, {passive: false});
|
|
},
|
|
|
|
_removeGrabListeners() {
|
|
this._removeEventListener('mousedown');
|
|
},
|
|
|
|
_addMoveListeners() {
|
|
this._addEventListener('mousemove', this._onMouseMove, {passive: false});
|
|
},
|
|
|
|
_removeMoveListeners() {
|
|
this._removeEventListener('mousemove');
|
|
},
|
|
|
|
_addReleaseListeners() {
|
|
this._addEventListener('mouseup', this._onMouseUp, {passive: false});
|
|
},
|
|
|
|
_removeReleaseListeners() {
|
|
this._removeEventListener('mouseup');
|
|
},
|
|
|
|
_addKeyDownListeners() {
|
|
this._addEventListener('keydown', this._onKeyDown);
|
|
},
|
|
|
|
_removeKeyDownListeners() {
|
|
this._removeEventListener('keydown');
|
|
},
|
|
|
|
_addEventListener(e, method, options) {
|
|
if (!this._eventHandlers[e]) {
|
|
let handler = run.bind(this, method);
|
|
this._eventHandlers[e] = {handler, options};
|
|
document.addEventListener(e, handler, options);
|
|
}
|
|
},
|
|
|
|
_removeEventListener(e) {
|
|
let event = this._eventHandlers[e];
|
|
if (event) {
|
|
document.removeEventListener(e, event.handler, event.options);
|
|
delete this._eventHandlers[e];
|
|
}
|
|
}
|
|
|
|
});
|