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dnd-colorcoded.js
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Ext.onReady(function () {
let tPanel = Ext.create('Ext.tab.Panel', {
renderTo: 'ribbonSimple',
width: '100%',
items: [{
xtype: 'panel',
title: 'Canvas',
tbar: Ext.create('Ext.toolbar.Toolbar', {
defaults: {focusCls: '', headerPosition: 'bottom'},
items: [{
xtype: 'buttongroup',
columns: 3,
height: 48,
defaults: {focusCls: '', xtype: 'button'},
items: [{text: 'Save as', height: 32}, {text: 'Close', height: 32}]
}, {
xtype: 'buttongroup',
columns: 3,
height: 48,
defaults: {focusCls: '', xtype: 'button'},
items: [{text: 'Report', cls: 'reportBtn', focusCls: '', height: 32}]
}, '->',
{
xtype: 'button',
text: 'Show frame groups',
enableToggle: true,
hidden: true,
listeners: {
toggle: function(thisCmp, state) {
let groups = document.querySelectorAll('.row-group, .col-group');
let randoms = [];
for (let i = 0; i < groups.length; i++) {
let groupTargets = groups[i].querySelectorAll('.frame');
if (state) {
let nextR = Math.floor(Math.random()*18);
let nOfIterations = 0;
while (randoms.includes(nextR)) {
nextR = Math.floor(Math.random()*18);
++nOfIterations;
if (nOfIterations > 18) {
randoms = [];
}
}
randoms.push(nextR);
let lightColor='hsl('+nextR*20+',80%,85%)';
for (let j = 0; j < groupTargets.length; j++) {
groupTargets[j].style.background = lightColor;
}
} else {
for (let j = 0; j < groupTargets.length; j++) {
groupTargets[j].style.background = '#ffff';
}
}
}
}
}
}, {
xtype: 'button',
text: 'Switch to group selection',
enableToggle: true,
listeners: {
toggle: function(thisCmp, state) {
const groups = [];
const potentialGroups = document.querySelectorAll('div[id^='.concat(CANVAS_ROOT_ID).concat(']'));
for (let i = 0; i < potentialGroups.length; i++) {
if (potentialGroups[i].style.display === 'flex' || potentialGroups[i].style.display === 'inline-flex') {
groups.push(potentialGroups[i]);
}
}
let randoms = [];
for (let i = 0; i < groups.length; i++) {
let nextR = Math.floor(Math.random()*18);
let nOfIterations = 0;
while (randoms.includes(nextR)) {
nextR = Math.floor(Math.random()*18);
++nOfIterations;
if (nOfIterations > 18) {
randoms = [];
}
}
randoms.push(nextR);
let lightColor='hsl('+nextR*20+',80%,85%)';
if (state) {
groups[i].style.padding = '8px';
groups[i].style.border = '1px dashed black';
//groups[i].style.background = lightColor;
let children = groups[i].querySelectorAll('.frame');
for (let j = 0; j < children.length; j++) {
children[j].style.background = '#fff';
}
} else {
groups[i].style.padding = 0;
groups[i].style.border = 0;
groups[i].style.background = '#ffff';
}
}
}
}
},
{
xtype: 'button',
text: 'Ctrl + click => Multiselekcija, Delete => Brisanje, Drag => Premjestanje, Alt + Drag => Kopiranje'
},
{
xtype: 'numberfield',
width: 120,
fieldLabel: 'Gap size',
labelWidth: 60,
value: 12,
listeners: {
change: function(cmp, newValue) {
let groups = document.querySelectorAll('.row-group, .col-group');
for (let i = 0; i < groups.length; i++) {
groups[i].style.gap = newValue+'px';
}
}
}
}]
})
}, {title: 'Second Tab', disabled: true}]
});
//--------------------------------- End of Ext toolbar rendering
//--------------------------------- Set initial config value
const TARGET_ZONE_BLUE = '#0ba5e31f';
const TARGET_ZONE_GREEN = '#12e39819';
const UNDERLAY_BLUE = '#0ba5e3';
const UNDERLAY_GREEN = '#12e398';
const DD_WIDTH = 14, DD_HEIGHT = 14;
let conf = {
type: 'row',
hgap: 5,
vgap: 5,
cells: [
{
type: 'cell',
height: 120,
width: 400,
id: getNewCellId(),
fgcolor: '#555',
border: '1px solid red'
},
{
type: 'cell',
height: 120,
width: 400,
id: getNewCellId(),
fgcolor: '#222',
border: '1px solid black'
}
]
};
/*
setTimeout(function() {
conf.cells.splice(0,1);
console.log('conf without second items',conf);
gencanvas(CANVAS_ROOT_ID, conf, onCreateCellCb);
console.log(conf);
}, 1800);*/
const creationCount = {};
window.creationCount = creationCount;
const onCreateCellCb = (el) => {
if (el.id.startsWith(CELLS_SELECTOR)) { // Cell node (add corresponding listeners and make it draggable)
if (!creationCount[el.id]) {
creationCount[el.id] = 1;
} else {
creationCount[el.id] = creationCount[el.id] + 1;
}
console.log('creationCount: ', creationCount);
el.draggable = true;
el.addEventListener('dragstart', cellOnDragStart);
el.addEventListener('dragend', cellOnDragEnd);
el.addEventListener('click', cellOnClick);
// Prevent text selection and set pointer cursor
el.style['-webkit-user-select'] = 'none';
el.style['-moz-user-select'] = 'none';
el.style['-ms-user-select'] = 'none';
el.style['user-select'] = 'none';
el.style.cursor = 'pointer';
}
};
const configUpdated = () => {
processNewConfig(CANVAS_ROOT_ID, conf, onCreateCellCb);
canvasParent = document.getElementById(CANVAS_ROOT_ID);
canvasParent.addEventListener('dragover', canvasOnDragOver);
};
const setCellListeners = (node) => {
node.addEventListener('dragstart', cellOnDragStart);
node.addEventListener('dragend', cellOnDragEnd);
node.addEventListener('click', cellOnClick);
};
gencanvas(CANVAS_ROOT_ID, conf, onCreateCellCb);
let btnContainer = tPanel.down('[text=Report]').container;
btnContainer.set({ draggable: 'true' });
// Drag and drop data
let dragDataList = [];
let dragSource = {}; // { type: 'Cell'||'Button', selectionSize: 1+ }
/**
* Add, clone or move selected items
* @param dropAction - either add (when item is being dragged from inspector or ribbon),
* move or copy (when frames are being moved around with or without alt key)
*/
const injectSelection = function(dropAction) {
let targetEl = lastDragData.target.el; // target el can be either col/row flexbox or cell (or cell first parent)
let direction = lastDragData.target.direction; // one of the following values: 'top','left','bottom','right'
let referencedChildNode = lastDragData.target.before;
//---------------------------------------------------------------------------------------------
// Adjust targetEl and referencedChildNode to either be col/row flexbox or direct cell (id of
// cell first parent is not present in conf obj so we have no use of it if it becomes targetEl)
//---------------------------------------------------------------------------------------------
if (!getConfigSlice(conf, domIdToConfId(targetEl.id))) {
targetEl = targetEl.firstElementChild;
}
if (referencedChildNode && !getConfigSlice(conf, domIdToConfId(referencedChildNode.id))) {
referencedChildNode = referencedChildNode.firstElementChild;
}
const targetElConfSlice = getConfigSlice(conf, domIdToConfId(targetEl.id));
console.log('direction and target');
console.log(targetEl);
console.log(direction);
let dragType = 'InBetween';
if (targetElConfSlice.type === 'cell') {
dragType = 'SplitCell';
}
else if (
(targetElConfSlice.type === 'column' && (direction === 'left' || direction === 'right')) ||
(targetElConfSlice.type === 'row' && (direction === 'top' || direction === 'bottom')))
{
dragType = 'NewDirection';
}
else if (!referencedChildNode &&
(
(targetElConfSlice.type === 'column' && direction === 'top') ||
(targetElConfSlice.type === 'row' && direction === 'left')
)
) {
dragType = 'AtGroupStart';
}
else if (!referencedChildNode &&
(
(targetElConfSlice.type === 'column' && direction === 'bottom') ||
(targetElConfSlice.type === 'row' && direction === 'right')
)
) {
dragType = 'AtGroupEnd';
}
if (dragType === 'AtGroupStart' || dragType === 'AtGroupEnd') {
const parentConfSlice = getConfigSlice(conf, domIdToConfId(targetEl.id));
let beforeChildWithID = null;
if (dragType === 'AtGroupStart') {
let firstElemChild = targetEl.firstElementChild;
let isCellFirstParent = firstElemChild.firstElementChild && firstElemChild.firstElementChild.id && firstElemChild.firstElementChild.id.startsWith(CELLS_SELECTOR);
beforeChildWithID = isCellFirstParent ? domIdToConfId(firstElemChild.firstElementChild.id) : domIdToConfId(firstElemChild.id);
}
//const beforeChildWithID = dragType === 'AtGroupStart' ? domIdToConfId(targetEl.firstElementChild.id) : null;
for (let i = 0; i < dragSource.selectionSize; i++) {
if (dropAction === 'move' || dropAction === 'copy') {
const originalId = domIdToConfId(cellSelection[i].id);
const originalConfSlice = getConfigSlice(conf, originalId);
const newCellChild = {};
for (let k in originalConfSlice) {
if (originalConfSlice.hasOwnProperty(k)) {
newCellChild[k] = originalConfSlice[k];
}
}
if (dropAction === 'move') {
removeConfSliceFromParent(conf, originalId)
} else if (dropAction === 'copy') {
newCellChild.id = getNewCellId();
const originalNode = canvasParent.querySelector('#'.concat(confIdToDomId(originalId)));
const copiedNode = originalNode.cloneNode(true);
setCellListeners(copiedNode);
copiedNode.id = confIdToDomId(newCellChild.id);
originalNode.parentNode.appendChild(copiedNode);
}
insertToConfig(parentConfSlice, beforeChildWithID, newCellChild);
} else {
const newCellChild = { type: 'cell', id: getNewCellId(), source: dragSource.source, width: 400, height: 120, border: '1px solid' };
insertToConfig(parentConfSlice, beforeChildWithID, newCellChild);
}
}
configUpdated();
} else if (dragType === 'InBetween') {
const parentConfSlice = getConfigSlice(conf, domIdToConfId(targetEl.id));
const beforeChildWithID = referencedChildNode ? domIdToConfId(referencedChildNode.id) : null;
for (let i = 0; i < dragSource.selectionSize; i++) {
if (dropAction === 'move' || dropAction === 'copy') {
const originalId = domIdToConfId(cellSelection[i].id);
const originalConfSlice = getConfigSlice(conf, originalId);
const newCellChild = {};
for (let k in originalConfSlice) {
if (originalConfSlice.hasOwnProperty(k)) {
newCellChild[k] = originalConfSlice[k];
}
}
if (dropAction === 'move') {
removeConfSliceFromParent(conf, originalId)
} else if (dropAction === 'copy') {
newCellChild.id = getNewCellId();
const originalNode = canvasParent.querySelector('#'.concat(confIdToDomId(originalId)));
const copiedNode = originalNode.cloneNode(true);
setCellListeners(copiedNode);
copiedNode.id = confIdToDomId(newCellChild.id);
originalNode.parentNode.appendChild(copiedNode);
}
insertToConfig(parentConfSlice, beforeChildWithID, newCellChild);
} else {
const newCellChild = { type: 'cell', id: getNewCellId(), source: dragSource.source, width: 400, height: 120, border: '1px solid' };
insertToConfig(parentConfSlice, beforeChildWithID, newCellChild);
}
}
configUpdated();
} else if (dragType === 'NewDirection') {
const parentConfSlice = getConfigSlice(conf, domIdToConfId(targetEl.id));
let innerGroup;
if (parentConfSlice.type === 'column') {
parentConfSlice.type = 'row';
innerGroup = {type: 'column', cells: parentConfSlice.cells.splice(0, parentConfSlice.cells.length)};
parentConfSlice.cells = [innerGroup];
} else if (parentConfSlice.type === 'row') {
parentConfSlice.type = 'column';
innerGroup = {type: 'row', cells: parentConfSlice.cells.splice(0, parentConfSlice.cells.length)};
parentConfSlice.cells = [innerGroup];
}
for (let i = 0; i < dragSource.selectionSize; i++) {
let newCellChild;
if (dropAction === 'move' || dropAction === 'copy') {
const originalId = domIdToConfId(cellSelection[i].id);
const originalConfSlice = getConfigSlice(conf, originalId);
newCellChild = {};
for (let k in originalConfSlice) {
if (originalConfSlice.hasOwnProperty(k)) {
newCellChild[k] = originalConfSlice[k];
}
}
if (dropAction === 'move') {
removeConfSliceFromParent(conf, originalId)
} else if (dropAction === 'copy') {
newCellChild.id = getNewCellId();
const originalNode = canvasParent.querySelector('#'.concat(confIdToDomId(originalId)));
const copiedNode = originalNode.cloneNode(true);
setCellListeners(copiedNode);
copiedNode.id = confIdToDomId(newCellChild.id);
originalNode.parentNode.appendChild(copiedNode);
}
} else {
newCellChild = { type: 'cell', id: getNewCellId(), source: dragSource.source, width: 400, height: 120, border: '1px solid' };
}
if (direction === 'top' || direction === 'left') {
// Add new cell conf before last item inside parentConfSlice.cells
parentConfSlice.cells.splice(parentConfSlice.cells.length - 1, 0, newCellChild);
} else {
// Add new cell conf at the end of parentConfSlice.cells
parentConfSlice.cells.push(newCellChild);
}
}
configUpdated();
} else if (dragType === 'SplitCell') {
if (direction === 'left' || direction === 'right') {
const parentConfSlice = getParentConfigSlice(conf, domIdToConfId(targetEl.id));
let cellIndex = 0;
for (let i = 0; i < parentConfSlice.cells.length; i++) {
if (parentConfSlice.cells[i].id === domIdToConfId(targetEl.id)) {
cellIndex = i;
break;
}
}
const newGroup = {type: 'row', cells: parentConfSlice.cells.splice(cellIndex, 1)};
parentConfSlice.cells.splice(cellIndex, 0, newGroup);
for (let i = 0; i < dragSource.selectionSize; i++) {
let newCellChild;
if (dropAction === 'move' || dropAction === 'copy') {
const originalId = domIdToConfId(cellSelection[i].id);
const originalConfSlice = getConfigSlice(conf, originalId);
newCellChild = {};
for (let k in originalConfSlice) {
if (originalConfSlice.hasOwnProperty(k)) {
newCellChild[k] = originalConfSlice[k];
}
}
if (dropAction === 'move') {
removeConfSliceFromParent(conf, originalId);
} else if (dropAction === 'copy') {
newCellChild.id = getNewCellId();
const originalNode = canvasParent.querySelector('#'.concat(confIdToDomId(originalId)));
const copiedNode = originalNode.cloneNode(true);
setCellListeners(copiedNode);
copiedNode.id = confIdToDomId(newCellChild.id);
originalNode.parentNode.appendChild(copiedNode);
}
} else {
newCellChild = { type: 'cell', id: getNewCellId(), source: dragSource.source, width: 400, height: 120, border: '1px solid' };
}
if (direction === 'left') {
// Add new cell conf before last item inside parentConfSlice.cells
newGroup.cells.splice(newGroup.cells.length - 1, 0, newCellChild);
} else {
// Add new cell conf at the end of parentConfSlice.cells
newGroup.cells.push(newCellChild);
}
}
configUpdated();
} else {
const parentConfSlice = getParentConfigSlice(conf, domIdToConfId(targetEl.id));
let cellIndex = 0;
for (let i = 0; i < parentConfSlice.cells.length; i++) {
if (parentConfSlice.cells[i].id === domIdToConfId(targetEl.id)) {
cellIndex = i;
break;
}
}
const newGroup = {type: 'column', cells: parentConfSlice.cells.splice(cellIndex, 1)};
parentConfSlice.cells.splice(cellIndex, 0, newGroup);
for (let i = 0; i < dragSource.selectionSize; i++) {
let newCellChild;
if (dropAction === 'move' || dropAction === 'copy') {
const originalId = domIdToConfId(cellSelection[i].id);
const originalConfSlice = getConfigSlice(conf, originalId);
newCellChild = {};
for (let k in originalConfSlice) {
if (originalConfSlice.hasOwnProperty(k)) {
newCellChild[k] = originalConfSlice[k];
}
}
if (dropAction === 'move') {
removeConfSliceFromParent(conf, originalId);
} else if (dropAction === 'copy') {
newCellChild.id = getNewCellId();
const originalNode = canvasParent.querySelector('#'.concat(confIdToDomId(originalId)));
const copiedNode = originalNode.cloneNode(true);
setCellListeners(copiedNode);
copiedNode.id = confIdToDomId(newCellChild.id);
originalNode.parentNode.appendChild(copiedNode);
}
} else {
newCellChild = { type: 'cell', id: getNewCellId(), source: dragSource.source, width: 400, height: 120, border: '1px solid' };
}
if (direction === 'top') {
// Add new cell conf before last item inside parentConfSlice.cells
newGroup.cells.splice(newGroup.cells.length - 1, 0, newCellChild);
} else {
// Add new cell conf at the end of parentConfSlice.cells
newGroup.cells.push(newCellChild);
}
}
configUpdated();
}
}
};
const processValidDrop = function(e) {
if (dragSource.type === 'Button') { // new item added via ribbon / inspector drop
injectSelection('add');
} else { // new item(s) are either moved or copied (depending on whether alt key is being pressed)
const action = e.altKey ? 'copy' : 'move';
injectSelection(action);
}
cellSelection = [];
const selectedCells = document.querySelectorAll('.cell-selected');
for (let i = 0; i < selectedCells.length; i++) {
selectedCells[i].classList.remove('cell-selected');
}
};
let ddTargetUnderlay = document.querySelector('.dd-target-underlay');
function ddTargetOnDragOver(e) {
if(e.preventDefault) {
e.preventDefault();
}
// Targeting step by step
let totalSteps = 0;
let thisRect = this.getBoundingClientRect();
switch (currentDragTargetData.directions[0]) {
case 'top':
case 'bottom':
totalSteps = Math.floor(Math.abs(e.clientY - thisRect.top) / currentDragTargetData.stepSize);
break;
case 'left':
case 'right':
totalSteps = Math.floor(Math.abs(e.clientX - thisRect.left) / currentDragTargetData.stepSize);
break;
}
let targetIndex = totalSteps, dragData;
if (!dragDataList[0]) {
return;
}
if (dragDataList[0].target.direction === 'top' || dragDataList[0].target.direction === 'left') {
dragData = getDragDataOnReversedIndex(targetIndex);
} else {
dragData = getDragDataOnNormalIndex(targetIndex);
}
lastDragData = dragData;
if (dragData && dragData.target) {
let targetRect = dragData.target.el.getBoundingClientRect();
switch (dragDataList[0].target.direction) {
case 'top':
case 'bottom':
let maxTop = thisRect.bottom - DD_HEIGHT;
let calculatedTop = thisRect.top + totalSteps * currentDragTargetData.stepSize;
ddTargetUnderlay.style.top = calculatedTop < maxTop ? calculatedTop : maxTop;
ddTargetUnderlay.style.left = targetRect.left;
ddTargetUnderlay.style.width = targetRect.right - targetRect.left;
ddTargetUnderlay.style.height = DD_HEIGHT;
break;
case 'right':
case 'left':
let maxLeft = thisRect.right - DD_WIDTH;
let calculatedLeft = thisRect.left + totalSteps * currentDragTargetData.stepSize;
ddTargetUnderlay.style.top = targetRect.top;
ddTargetUnderlay.style.left = calculatedLeft < maxLeft ? calculatedLeft : maxLeft;
ddTargetUnderlay.style.width = DD_WIDTH;
ddTargetUnderlay.style.height = targetRect.bottom - targetRect.top;
break;
default:
break;
}
ddZone.style.top = targetRect.top;
ddZone.style.left = targetRect.left;
ddZone.style.width = targetRect.right - targetRect.left;
ddZone.style.height = targetRect.bottom - targetRect.top;
if (dragData.target.el.id.startsWith(CELLS_SELECTOR)/*nodeIsFirstCellParent(dragData.target.el)*/ && allAvailableCells.length > 1) {
ddZone.style.background = TARGET_ZONE_GREEN;
ddTargetUnderlay.style.background = UNDERLAY_GREEN;
e.dataTransfer.dropEffect = "move";
} else {
ddZone.style.background = TARGET_ZONE_BLUE;
ddTargetUnderlay.style.background = UNDERLAY_BLUE;
e.dataTransfer.dropEffect = "copy";
}
}
return false;
}
function nodeIsFirstCellParent(node) {
const firstChild = node.firstChild;
return firstChild && firstChild.id && firstChild.id.startsWith(CELLS_SELECTOR);
}
let lastDragData;
function ddTargetOnDragEnter(e) {
}
function ddTargetOnDragLeave(e) {
ddTargetUnderlay.style.top = 0; ddTargetUnderlay.style.left = 0; ddTargetUnderlay.style.width = 0; ddTargetUnderlay.style.height = 0;
ddZone.style.top = 0; ddZone.style.left = 0; ddZone.style.width = 0; ddZone.style.height = 0;
}
function ddTargetOnDrop(e) {
if (e.preventDefault) {
e.preventDefault();
}
// drag source is over drag target
if (e.target.classList.contains("dd-target")) {
processValidDrop(e);
}
if (e.target.classList.contains("start-dd-target") || e.target.parentNode.classList.contains("start-dd-target")) {
processFirstDrop(e);
}
ddZone.style.top = 0; ddZone.style.left = 0; ddZone.style.width = 0; ddZone.style.height = 0;
ddTargetUnderlay.style.top = 0; ddTargetUnderlay.style.left = 0; ddTargetUnderlay.style.width = 0; ddTargetUnderlay.style.height = 0;
dragDataList = []
}
let prohibitedTargets = [];
/**
* Prohibited targets are all selected cells and their parents if
* every child of that parent is also selected and prohibited
*/
const addProhibitedTargets = function() {
let selectedCells = document.querySelectorAll('.cell-selected');
for (let i = 0; i < selectedCells.length; i++) {
prohibitedTargets.push(selectedCells[i]);
}
for (let i = 0; i < prohibitedTargets.length; i++) {
if (!prohibitedTargets[i] || prohibitedTargets[i].id === CANVAS_ROOT_ID) {
break;
}
let nextParent = prohibitedTargets[i].parentNode;
let prohibitedChildrenCount = 0;
for (let j = 0; j < nextParent.children.length; j++) {
if (prohibitedTargets.includes(nextParent.children[j])) {
++prohibitedChildrenCount;
}
}
if (prohibitedChildrenCount === nextParent.children.length && !prohibitedTargets.includes(nextParent)) {
prohibitedTargets.push(nextParent);
}
}
};
const resetProhibitedTargets = function() {
prohibitedTargets = [];
};
let allAvailableCells = [];
function cellOnDragStart(e) {
e.dataTransfer.effectAllowed = "all";
allAvailableCells = canvasParent.querySelectorAll('div[id^='.concat(CELLS_SELECTOR).concat(']'));
addToCellSelection(this);
const selectedCells = canvasParent.querySelectorAll('.cell-selected');
for (let i = 0; i < selectedCells.length; i++) {
selectedCells[i].style.opacity = '0.4';
}
addProhibitedTargets();
dragSource = {
type: 'Cell',
selectionSize: selectedCells.length
}
}
function cellOnDragEnd(e) {
for (let i = 0; i < dragTargets.length; i++) {
dragTargets[i].style.top = 0; dragTargets[i].style.left = 0; dragTargets[i].style.width = 0; dragTargets[i].style.height = 0;
}
let newDraggableCells = document.querySelectorAll('div[id^='.concat(CELLS_SELECTOR).concat(']'));
for (let i = 0; i < newDraggableCells.length; i++) {
newDraggableCells[i].style.opacity = '1';
}
resetProhibitedTargets();
}
let cellSelection = [];
const addToCellSelection = function(cellNode) {
cellNode.classList.add('cell-selected');
if (!cellSelection.includes(cellNode)) {
cellSelection.push(cellNode);
}
};
const removeFromCellSelection = function(cellNode) {
cellNode.classList.remove('cell-selected');
for (let i = cellSelection.length; i >= 0; i--) {
if (cellSelection[i] === cellNode) {
cellSelection.splice(i, 1);
}
}
};
function traverseAndExtractCellIds(confPart, ids) {
if (confPart !== null && typeof confPart === "object" ) {
if (confPart.type === 'cell') {
ids.push('#'.concat(CANVAS_ROOT_ID).concat('-').concat(confPart.id));
} else if (confPart.cells) {
for (let i = 0; i < confPart.cells.length; i++) {
traverseAndExtractCellIds(confPart.cells[i], ids);
}
}
}
else {
// confPart is a number or string => do nothing
}
}
function getAllAvailableCells() {
const ids = [];
traverseAndExtractCellIds(conf, ids);
if (ids.length === 0) {
return [];
} else {
return document.querySelectorAll(ids.join(','));
}
}
function cellOnClick(e) {
if (!e.ctrlKey && !e.metaKey) {
let newDraggableCells = getAllAvailableCells();
for (let i = 0; i < newDraggableCells.length; i++) {
removeFromCellSelection(newDraggableCells[i]);
}
}
if (this.classList.contains('cell-selected') && (e.ctrlKey || e.metaKey)) {
removeFromCellSelection(this);
} else {
addToCellSelection(this);
}
e.stopPropagation();
}
let ddZone = document.querySelector('.dd-target-zone');
// TRACKING MECHANISM
const getMinDstAndDirection = function(rect, e, insideFrame) {
let dstToTop = Math.abs(e.clientY - rect.top);
let dstToBottom = Math.abs(e.clientY - rect.bottom);
let dstToLeft = Math.abs(e.clientX - rect.left);
let dstToRight = Math.abs(e.clientX - rect.right);
let min = dstToTop;
let overDirection = 'top';
if (dstToBottom < min) {
min = dstToBottom;
overDirection = 'bottom';
}
if (dstToLeft < min) {
min = dstToLeft;
overDirection = 'left';
}
if (dstToRight < min) {
min = dstToRight;
overDirection = 'right';
}
return {min, overDirection};
};
const minDistanceToCell = function(frRect, e) {
let dstToTopLeft = sqrt(sqr(Math.abs(e.clientX - frRect.left))+sqr(Math.abs(e.clientY - frRect.top)));
let dstToBottomLeft = sqrt(sqr(Math.abs(e.clientX - frRect.left))+sqr(Math.abs(e.clientY - frRect.bottom)));
let dstToTopRight = sqrt(sqr(Math.abs(e.clientX - frRect.right))+sqr(Math.abs(e.clientY - frRect.top)));
let dstToBottomRight = sqrt(sqr(Math.abs(e.clientX - frRect.right))+sqr(Math.abs(e.clientY - frRect.bottom)));
let min = dstToTopLeft;
if (dstToBottomLeft < min) { min = dstToBottomLeft; }
if (dstToTopRight < min) { min = dstToTopRight; }
if (dstToBottomRight < min) { min = dstToBottomRight; }
return min;
};
const traverseAndFindClosestCell = function(target, e) {
let minDst = Number.MAX_SAFE_INTEGER, cell = allAvailableCells[0];
for (let i = 0; i < allAvailableCells.length; i++) {
let currentMin = minDistanceToCell(allAvailableCells[i].getBoundingClientRect(), e);
if (currentMin < minDst) {
minDst = currentMin;
cell = allAvailableCells[i];
}
}
let minDstAndDirection = getMinDstAndDirection(cell.getBoundingClientRect(), e, false);
return {cell, overDirection: minDstAndDirection.overDirection};
};
const getFrameParentNode = function (node) {
if (node.classList.contains('canvas')) {
return null;
}
if (node.classList.contains('frame')) {
return node;
} else {
return getFrameParentNode(node.parentNode);
}
};
/**
* Will return first valid target
* @param node
*/
const getValidTargetNode = function(node) {
if (!node) {
return null;
}
const confId = domIdToConfId(node.id);
if (getConfigSlice(conf, confId)) { // Valid target, no need for further lookup
return node;
} else if (node.firstElementChild && node.firstElementChild.id.startsWith(CELLS_SELECTOR)) { // First cell parent, return cell as valid target
return node.firstElementChild;
} else { // Cell child, move up until first valid target is found
return getValidTargetNode(node.parentNode);
}
};
let lastClientX, lastClientY;
const canvasOnDragOver = function(e) {
// Valid targets are cells and any parent excluding first one
const target = getValidTargetNode(e.target);
if (e.clientX === lastClientX && e.clientY === lastClientY) {
// No changes since last drag over call
return;
}
lastClientX = e.clientX;
lastClientY = e.clientY;
if (!target) {
for (let i = 0; i < dragTargets.length; i++) {
dragTargets[i].style.top = 0; dragTargets[i].style.left = 0; dragTargets[i].style.width = 0; dragTargets[i].style.height = 0;
}
return;
}
let overDirection = 'top'; // can be either 'top', 'bottom', 'left' or 'right'
let closestCell;
// Find nearest track point inside a cell
if (target.id.startsWith(CELLS_SELECTOR)) {
closestCell = target;
overDirection = getMinDstAndDirection(closestCell.getBoundingClientRect(), e, true).overDirection;
}
// Traverse col and row groups in search for closest frame
else {
let closestFrameAndDirection = traverseAndFindClosestCell(target, e);
closestCell = closestFrameAndDirection.cell;
overDirection = closestFrameAndDirection.overDirection;
}
if (!closestCell) {
for (let i = 0; i < dragTargets.length; i++) {
dragTargets[i].style.top = 0; dragTargets[i].style.left = 0; dragTargets[i].style.width = 0; dragTargets[i].style.height = 0;
}
return;
}
if (!e.altKey && prohibitedTargets.includes(closestCell)) {
for (let i = 0; i < dragTargets.length; i++) {
dragTargets[i].style.top = 0; dragTargets[i].style.left = 0; dragTargets[i].style.width = 0; dragTargets[i].style.height = 0;
}
return;
}
setTargetPositions(closestCell, overDirection, e);
};
/**
* Tell how many drag targets should be rendered for provided cell and direction
* @param node - cell or row/col-group
* @param direction - 'top', 'bottom', 'right' or 'left'
* @param currentCount
* @returns object {firstZoneType: string either 'edge' or 'gap', count: number >= 0}|{gapRect: {top: number, left: number, width: number, height: number}, firstZoneType: 'gap', count: number >= 0}
*/
const countCellDDZonesForDirection = function(node, direction, currentCount) {
if (node.id === CANVAS_ROOT_ID) {
++currentCount;
dragDataList.push({target: {el: node, direction: direction}});
return {count: currentCount, firstZoneType: 'edge'}
}
let isDirectedInsideGap = false;
let gapRect;
const confSlice = getConfigSlice(conf, domIdToConfId(node.id));
//if (!confSlice) { // Current iteration is on first cell parent (skip to one parent above)
// return countCellDDZonesForDirection(node.parentNode, direction, currentCount);