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| define(["require", "exports", "@syncfusion/ej2-base", "../common/index", "../common/index", "../common/index", "./../../workbook/index", "../../workbook/common/index"], function (require, exports, ej2_base_1, index_1, index_2, index_3, index_4, index_5) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var VirtualScroll = (function () {
function VirtualScroll(parent) {
this.scroll = [];
this.parent = parent;
this.addEventListener();
}
VirtualScroll.prototype.createVirtualElement = function (args) {
var sheet = this.parent.getActiveSheet();
var container = this.parent.getMainContent();
this.content = this.parent.createElement('div', { className: 'e-virtualable' });
this.content.appendChild(container.querySelector('.e-table'));
container.appendChild(this.content);
var vTrack = container.appendChild(this.parent.createElement('div', { className: 'e-virtualtrack' }));
var height = 0;
var width;
if (this.parent.sheets.length > this.scroll.length) {
this.initScroll();
}
var endIndex = this.parent.viewport.bottomIndex;
if (sheet.rowCount > endIndex + 1 || sheet.usedRange.rowIndex > endIndex) {
if (!this.parent.scrollSettings.isFinite && sheet.rowCount <= sheet.usedRange.rowIndex) {
this.parent.setSheetPropertyOnMute(sheet, 'rowCount', sheet.usedRange.rowIndex + 1);
}
this.setScrollCount(sheet.rowCount, 'row');
}
else {
if (!this.parent.scrollSettings.isFinite) {
this.parent.setSheetPropertyOnMute(sheet, 'rowCount', endIndex + 1);
}
this.scroll[this.parent.activeSheetIndex].rowCount = sheet.rowCount;
}
var startIndex = this.parent.frozenRowCount(sheet);
var indexes = index_5.getCellIndexes(sheet.topLeftCell);
if (args.top) {
height = args.top;
if (sheet.frozenRows) {
height += index_4.getRowsHeight(sheet, indexes[0], startIndex - 1, true);
}
startIndex = index_5.getCellIndexes(sheet.paneTopLeftCell)[0];
}
height += index_4.getRowsHeight(sheet, startIndex, this.scroll[this.parent.activeSheetIndex].rowCount - 1, true);
endIndex = this.parent.viewport.rightIndex;
var size = 0;
var frozenCol = this.parent.frozenColCount(sheet);
if (args.left) {
size = args.left;
if (frozenCol) {
size += index_4.getColumnsWidth(sheet, indexes[1], frozenCol - 1, true);
}
startIndex = index_5.getCellIndexes(sheet.paneTopLeftCell)[1];
}
else {
startIndex = frozenCol;
}
if (sheet.colCount > endIndex + 1 || sheet.usedRange.colIndex > endIndex) {
Iif (!this.parent.scrollSettings.isFinite && sheet.colCount <= sheet.usedRange.colIndex) {
this.parent.setSheetPropertyOnMute(sheet, 'colCount', sheet.usedRange.colIndex + 1);
}
size += index_4.getColumnsWidth(sheet, startIndex, endIndex, true);
this.setScrollCount(sheet.colCount, 'col');
width = size + index_4.getColumnsWidth(sheet, endIndex + 1, this.scroll[this.parent.activeSheetIndex].colCount - 1, true);
}
else {
Iif (!this.parent.scrollSettings.isFinite) {
this.parent.setSheetPropertyOnMute(sheet, 'colCount', endIndex + 1);
}
size += index_4.getColumnsWidth(sheet, startIndex, sheet.colCount - 1, true);
this.scroll[this.parent.activeSheetIndex].colCount = sheet.colCount;
width = size;
}
Iif (ej2_base_1.isNullOrUndefined(this.parent.viewport.leftIndex)) {
this.parent.viewport.leftIndex = 0;
}
Iif (ej2_base_1.isNullOrUndefined(this.parent.viewport.topIndex)) {
this.parent.viewport.topIndex = 0;
}
if (args.left) {
size = index_4.getColumnsWidth(sheet, this.parent.viewport.leftIndex + frozenCol, endIndex, true);
}
if (ej2_base_1.isNullOrUndefined(this.translateX)) {
this.translateX = 0;
}
if (ej2_base_1.isNullOrUndefined(this.translateY)) {
this.translateY = 0;
}
container = this.parent.getRowHeaderContent();
this.rowHeader = this.content.cloneNode();
this.rowHeader.appendChild(container.querySelector('.e-table'));
container.appendChild(this.rowHeader);
var rowVTrack = container.appendChild(vTrack.cloneNode());
this.rowHeader.style.transform = "translate(0px, " + this.translateY + "px)";
container = this.parent.getColumnHeaderContent();
this.colHeader = this.content.cloneNode();
this.colHeader.appendChild(container.querySelector('.e-table'));
container.appendChild(this.colHeader);
var colVTrack = container.appendChild(vTrack.cloneNode());
this.colHeader.style.width = size + "px";
rowVTrack.style.height = height + "px";
colVTrack.style.width = width + "px";
this.colHeader.style.transform = "translate(" + this.translateX + "px, 0px)";
this.content.style.transform = "translate(" + this.translateX + "px, " + this.translateY + "px)";
this.content.style.width = size + "px";
vTrack.style.height = height + "px";
vTrack.style.width = width + "px";
if (this.parent.allowScrolling) {
var scrollVTrack = colVTrack.cloneNode(true);
scrollVTrack.style.width = width + (this.parent.scrollSettings.isFinite ? this.parent.sheetModule.getScrollSize() : 0) + "px";
this.parent.getScrollElement().appendChild(scrollVTrack);
}
};
VirtualScroll.prototype.initScroll = function () {
var i = 0;
while (i < this.parent.sheets.length) {
Eif (!this.scroll[i]) {
this.scroll.push({ rowCount: 0, colCount: 0 });
}
i++;
}
};
VirtualScroll.prototype.setScrollCount = function (count, layout) {
var activeSheetIdx = this.parent.activeSheetIndex;
if (!this.scroll[activeSheetIdx][layout + 'Count'] || this.scroll[activeSheetIdx][layout + 'Count'] !== count) {
this.scroll[activeSheetIdx][layout + 'Count'] = count;
}
};
VirtualScroll.prototype.getRowAddress = function (indexes) {
var sheet = this.parent.getActiveSheet();
return index_5.getRangeAddress([indexes[0], sheet.frozenColumns ? index_5.getCellIndexes(sheet.topLeftCell)[1] : this.parent.viewport.leftIndex,
indexes[1], this.parent.viewport.rightIndex]);
};
VirtualScroll.prototype.getColAddress = function (indexes) {
var sheet = this.parent.getActiveSheet();
return index_5.getRangeAddress([sheet.frozenRows ? index_5.getCellIndexes(sheet.topLeftCell)[0] : this.parent.viewport.topIndex, indexes[0],
this.parent.viewport.bottomIndex, indexes[1]]);
};
VirtualScroll.prototype.updateScrollCount = function (idx, layout, threshold) {
if (threshold === void 0) { threshold = idx; }
var sheet = this.parent.getActiveSheet();
var rowCount = idx + this.parent.viewport[layout + 'Count'] + 1 + threshold;
var usedRangeCount = this.scroll[this.parent.activeSheetIndex][layout + 'Count'];
if (rowCount < usedRangeCount) {
if (sheet[layout + 'Count'] === usedRangeCount) {
return;
}
rowCount = usedRangeCount;
}
if (!this.parent.scrollSettings.isFinite) {
this.parent.setSheetPropertyOnMute(sheet, layout + 'Count', rowCount);
}
};
VirtualScroll.prototype.onVerticalScroll = function (args) {
var idx = args.cur.idx;
var height = args.cur.size;
var prevIdx = args.prev.idx;
var idxDiff = Math.abs(idx - prevIdx);
var threshold = this.parent.getThreshold('row');
if (idxDiff > Math.round(threshold / 2)) {
var startIdx = void 0;
var lastIdx = void 0;
var prevTopIdx = void 0;
var sheet = this.parent.getActiveSheet();
if (idx <= threshold) {
Eif (!args.increase) {
if (this.translateY && prevIdx > threshold) {
this.translateY = 0;
var frozenCol = this.parent.frozenColCount(sheet);
var frozenRow = this.parent.frozenRowCount(sheet);
Eif (!args.preventScroll) {
var colIndex = frozenCol ? index_5.getCellIndexes(sheet.topLeftCell)[1] : this.parent.viewport.leftIndex;
var fIndexes = frozenCol ? [frozenRow, this.parent.viewport.leftIndex + frozenCol] : [];
if (idxDiff < this.parent.viewport.rowCount + threshold) {
startIdx = index_4.skipHiddenIdx(sheet, frozenRow, true);
lastIdx = index_4.skipHiddenIdx(sheet, (this.parent.viewport.topIndex + frozenRow) - 1, false);
this.parent.viewport.topIndex = startIdx - frozenRow;
var btmIdx = this.skipHiddenLastIdx(this.parent.viewport.bottomIndex - (((lastIdx - startIdx) + 1) - this.hiddenCount(startIdx, lastIdx)), this.parent.viewport.bottomIndex);
this.parent.viewport.bottomIndex = index_4.skipHiddenIdx(sheet, btmIdx, false);
this.parent.renderModule.refreshUI({
colIndex: colIndex, rowIndex: startIdx, direction: 'last', refresh: 'RowPart',
skipUpdateOnFirst: true, frozenIndexes: fIndexes
}, this.getRowAddress([startIdx, index_4.skipHiddenIdx(sheet, lastIdx, false)]));
}
else {
var prevColIndex = this.parent.viewport.leftIndex;
this.parent.renderModule.refreshUI({ rowIndex: 0, colIndex: colIndex, refresh: 'Row', skipUpdateOnFirst: true,
frozenIndexes: fIndexes, skipTranslate: true });
if (frozenCol) {
this.parent.viewport.leftIndex = prevColIndex;
}
this.translate({ refresh: 'Row' });
}
index_2.focus(this.parent.element);
idx = 0;
}
else {
this.parent.viewport.topIndex = prevIdx - (threshold - frozenRow);
}
}
this.updateScrollCount(threshold, 'row');
}
}
if (prevIdx < threshold) {
idxDiff = Math.abs(idx - threshold);
}
if (!args.increase && this.parent.scrollSettings.isFinite && this.parent.viewport.bottomIndex ===
index_4.skipHiddenIdx(sheet, sheet.rowCount - 1, false)) {
var frozenRow = this.parent.frozenRowCount(sheet);
var thresholdIdx = this.parent.viewport.topIndex + frozenRow + index_4.getRangeIndexes(sheet.paneTopLeftCell)[0] - 1;
Eif (idx + frozenRow > thresholdIdx) {
args.prev.idx = idx;
return;
}
idxDiff = thresholdIdx - (idx + frozenRow);
}
if (idx > threshold) {
prevTopIdx = this.parent.viewport.topIndex;
this.parent.viewport.topIndex = idx - threshold;
Iif (args.increase && prevTopIdx > this.parent.viewport.topIndex) {
this.parent.viewport.topIndex = prevTopIdx;
return;
}
var frozenRow = this.parent.frozenRowCount(sheet);
if (!args.preventScroll) {
var frozenCol = this.parent.frozenColCount(sheet);
var colIndex = void 0;
var frozenIndexes = [];
if (frozenCol) {
colIndex = index_5.getCellIndexes(sheet.topLeftCell)[1];
frozenIndexes.push(frozenRow);
frozenIndexes.push(this.parent.viewport.leftIndex + frozenCol);
}
else {
colIndex = this.parent.viewport.leftIndex;
}
if (idxDiff < this.parent.viewport.rowCount + threshold) {
if (args.increase) {
startIdx = this.parent.viewport.bottomIndex + 1;
lastIdx = this.parent.viewport.bottomIndex + (this.parent.viewport.topIndex - prevTopIdx);
lastIdx -= this.hiddenCount(prevTopIdx + frozenRow, this.parent.viewport.topIndex - 1 + frozenRow);
if (lastIdx <= this.parent.viewport.bottomIndex || (this.parent.scrollSettings.isFinite &&
startIdx > index_4.skipHiddenIdx(sheet, sheet.rowCount - 1, false, 'rows'))) {
this.parent.viewport.topIndex = prevTopIdx;
return;
}
var indexes = this.parent.skipHidden(startIdx, lastIdx, 'rows', false);
var finiteProps = this.checkLastIdx(indexes[1], 'row');
startIdx = indexes[0];
lastIdx = finiteProps.index;
var topIdx = this.parent.viewport.topIndex + frozenRow;
Iif (finiteProps.diff) {
var diffCount = ((lastIdx - startIdx) + 1) - this.hiddenCount(startIdx, lastIdx);
topIdx = index_4.skipHiddenIdx(sheet, prevTopIdx, true, 'rows', diffCount) + frozenRow;
}
this.parent.viewport.topIndex = index_4.skipHiddenIdx(sheet, topIdx, !finiteProps.diff) - frozenRow;
this.setThresholdHeight(height, idx - this.parent.viewport.topIndex, frozenRow, !!finiteProps.diff, prevTopIdx === index_4.skipHiddenIdx(sheet, frozenRow, true));
this.parent.viewport.bottomIndex = lastIdx;
this.parent.renderModule.refreshUI({ colIndex: colIndex, rowIndex: startIdx, direction: 'first', refresh: 'RowPart',
frozenIndexes: frozenIndexes }, this.getRowAddress([startIdx, lastIdx]));
}
else {
startIdx = index_4.skipHiddenIdx(sheet, this.parent.viewport.topIndex + frozenRow, false);
Iif (startIdx < frozenRow) {
startIdx = frozenRow;
startIdx = index_4.skipHiddenIdx(sheet, startIdx, true);
}
this.parent.viewport.topIndex = startIdx - frozenRow;
lastIdx = index_4.skipHiddenIdx(sheet, (prevTopIdx + frozenRow) - 1, false);
Iif (lastIdx < frozenRow || lastIdx < startIdx) {
this.parent.viewport.topIndex = prevTopIdx;
return;
}
var btmIdx = this.skipHiddenLastIdx(this.parent.viewport.bottomIndex - (((lastIdx - startIdx) + 1) - this.hiddenCount(startIdx, lastIdx)), this.parent.viewport.bottomIndex);
this.parent.viewport.bottomIndex = index_4.skipHiddenIdx(sheet, btmIdx, false);
this.setThresholdHeight(height, idx - this.parent.viewport.topIndex, frozenRow);
this.parent.renderModule.refreshUI({ colIndex: colIndex, rowIndex: startIdx, direction: 'last', refresh: 'RowPart',
frozenIndexes: frozenIndexes }, this.getRowAddress([startIdx, lastIdx]));
}
}
else {
prevTopIdx = this.parent.viewport.leftIndex;
this.parent.viewport.topIndex = index_4.skipHiddenIdx(sheet, this.parent.viewport.topIndex + frozenRow, false) - frozenRow;
Iif (this.parent.viewport.topIndex < 0) {
this.parent.viewport.topIndex = index_4.skipHiddenIdx(sheet, frozenRow, true) - frozenRow;
}
this.parent.renderModule.refreshUI({
rowIndex: this.parent.viewport.topIndex, colIndex: colIndex, refresh: 'Row',
frozenIndexes: frozenIndexes, skipTranslate: true
});
if (frozenCol) {
this.parent.viewport.leftIndex = prevTopIdx;
}
this.setThresholdHeight(height, idx - this.parent.viewport.topIndex, frozenRow, this.parent.scrollSettings.isFinite && this.parent.viewport.bottomIndex ===
index_4.skipHiddenIdx(sheet, sheet.rowCount - 1, false));
this.translate({ refresh: 'Row' });
}
this.updateScrollCount(idx, 'row', threshold);
this.focusSheet();
}
else {
this.setThresholdHeight(height, threshold, frozenRow);
this.translate({ refresh: 'Row' });
}
}
args.prev.idx = idx;
}
};
VirtualScroll.prototype.skipHiddenLastIdx = function (idx, prevIdx, layout) {
if (layout === void 0) { layout = 'rows'; }
var sheet = this.parent.getActiveSheet();
var count = 0;
for (var i = idx; i <= prevIdx; i++) {
Iif ((sheet["" + layout])[i] && (sheet["" + layout])[i].hidden) {
count++;
}
}
Iif (count) {
idx = this.skipHiddenLastIdx(idx - count, idx - 1, layout);
}
return idx;
};
VirtualScroll.prototype.hiddenCount = function (startIdx, endIdx, layout) {
if (layout === void 0) { layout = 'rows'; }
var index = 0;
var sheet = this.parent.getActiveSheet();
for (var i = startIdx; i <= endIdx; i++) {
if ((sheet["" + layout])[i] && (sheet["" + layout])[i].hidden) {
index++;
}
}
return index;
};
VirtualScroll.prototype.checkLastIdx = function (idx, layout) {
var diff = 0;
if (this.parent.scrollSettings.isFinite) {
var sheet = this.parent.getActiveSheet();
var count = index_4.skipHiddenIdx(sheet, (sheet[layout + 'Count'] - 1), false);
Iif (idx > count) {
diff = idx - count;
idx = count;
}
}
return { index: idx, diff: diff };
};
VirtualScroll.prototype.onHorizontalScroll = function (args) {
var idx = args.cur.idx;
var width = args.cur.size;
var prevIdx = args.prev.idx;
var idxDiff = Math.abs(idx - prevIdx);
var threshold = this.parent.getThreshold('col');
if (idxDiff > Math.round(threshold / 2)) {
var startIdx = void 0;
var endIdx = void 0;
var prevLeftIdx = void 0;
var sheet = this.parent.getActiveSheet();
if (idx <= threshold) {
if (!args.increase) {
Eif (this.translateX && prevIdx > threshold) {
this.translateX = 0;
var frozenCol = this.parent.frozenColCount(sheet);
var frozenRow = this.parent.frozenRowCount(sheet);
Eif (!args.preventScroll) {
var rowIndex = frozenRow ? index_5.getCellIndexes(sheet.topLeftCell)[0] : this.parent.viewport.topIndex;
var fIndexes = frozenRow ? [this.parent.viewport.topIndex + frozenRow, frozenCol] : [];
if (idxDiff < this.parent.viewport.colCount + threshold) {
startIdx = index_4.skipHiddenIdx(sheet, frozenCol, true, 'columns');
endIdx = index_4.skipHiddenIdx(sheet, (this.parent.viewport.leftIndex + frozenCol) - 1, false, 'columns');
this.parent.viewport.leftIndex = startIdx - frozenCol;
var rightIdx = this.skipHiddenLastIdx(this.parent.viewport.rightIndex - (((endIdx - startIdx) + 1) -
this.hiddenCount(startIdx, endIdx, 'columns')), this.parent.viewport.rightIndex, 'columns');
this.parent.viewport.rightIndex = index_4.skipHiddenIdx(sheet, rightIdx, false, 'columns');
this.parent.renderModule.refreshUI({ rowIndex: rowIndex, colIndex: startIdx, direction: 'last', refresh: 'ColumnPart',
skipUpdateOnFirst: true, frozenIndexes: fIndexes }, this.getColAddress([startIdx, index_4.skipHiddenIdx(sheet, endIdx, false, 'columns')]));
}
else {
var prevRowIndex = this.parent.viewport.topIndex;
this.parent.renderModule.refreshUI({ rowIndex: rowIndex, colIndex: 0, refresh: 'Column', skipUpdateOnFirst: true,
frozenIndexes: fIndexes, skipTranslate: true });
if (frozenRow) {
this.parent.viewport.topIndex = prevRowIndex;
}
this.translate({ refresh: 'Column' });
}
index_2.focus(this.parent.element);
idx = 0;
}
else {
this.parent.viewport.leftIndex = prevIdx - (threshold - frozenCol);
}
}
this.updateScrollCount(threshold, 'col');
}
}
if (prevIdx < threshold) {
idxDiff = Math.abs(idx - threshold);
}
Iif (!args.increase && this.parent.scrollSettings.isFinite && this.parent.viewport.rightIndex ===
index_4.skipHiddenIdx(sheet, sheet.colCount - 1, false, 'columns')) {
var frozenCol = this.parent.frozenColCount(sheet);
var thresholdIdx = this.parent.viewport.leftIndex + frozenCol + index_4.getRangeIndexes(sheet.paneTopLeftCell)[1] - 1;
thresholdIdx += this.hiddenCount(this.parent.viewport.leftIndex + frozenCol, thresholdIdx);
if (idx + frozenCol > thresholdIdx) {
args.prev.idx = idx;
return;
}
idxDiff = thresholdIdx - (idx + frozenCol);
}
if (idx > threshold) {
prevLeftIdx = this.parent.viewport.leftIndex;
this.parent.viewport.leftIndex = idx - threshold;
Iif (args.increase && prevLeftIdx > this.parent.viewport.leftIndex) {
this.parent.viewport.leftIndex = prevLeftIdx;
return;
}
var frozenCol = this.parent.frozenColCount(sheet);
if (!args.preventScroll) {
var frozenRow = this.parent.frozenRowCount(sheet);
var rowIndex = frozenRow ? index_5.getCellIndexes(sheet.topLeftCell)[0] : this.parent.viewport.topIndex;
var frozenIndexes = [];
if (frozenRow) {
frozenIndexes = [frozenRow + this.parent.viewport.topIndex, frozenCol];
}
if (idxDiff < this.parent.viewport.colCount + threshold) {
if (args.increase) {
startIdx = this.parent.viewport.rightIndex + 1;
endIdx = this.parent.viewport.rightIndex + (this.parent.viewport.leftIndex - prevLeftIdx);
endIdx -= this.hiddenCount(prevLeftIdx + frozenCol, this.parent.viewport.leftIndex - 1 + frozenCol, 'columns');
Iif (endIdx <= this.parent.viewport.rightIndex || (this.parent.scrollSettings.isFinite &&
startIdx > index_4.skipHiddenIdx(sheet, sheet.colCount - 1, false, 'columns'))) {
this.parent.viewport.leftIndex = prevLeftIdx;
return;
}
var indexes = this.parent.skipHidden(startIdx, endIdx, 'columns', false);
var finiteOffset = this.checkLastIdx(indexes[1], 'col');
startIdx = indexes[0];
endIdx = finiteOffset.index;
this.parent.viewport.leftIndex = index_4.skipHiddenIdx(sheet, (this.parent.viewport.leftIndex - finiteOffset.diff) + frozenCol, !finiteOffset.diff, 'columns') - frozenCol;
this.setThresholdWidth(width, idx - this.parent.viewport.leftIndex, frozenCol, !!finiteOffset.diff, prevLeftIdx === index_4.skipHiddenIdx(sheet, frozenCol, true, 'columns'));
this.parent.viewport.rightIndex = endIdx;
this.parent.renderModule.refreshUI({ rowIndex: rowIndex, colIndex: startIdx, direction: 'first', refresh: 'ColumnPart',
frozenIndexes: frozenIndexes }, this.getColAddress([startIdx, endIdx]));
}
else {
startIdx = index_4.skipHiddenIdx(sheet, this.parent.viewport.leftIndex + frozenCol, false, 'columns');
Iif (startIdx < frozenCol) {
startIdx = frozenCol;
startIdx = index_4.skipHiddenIdx(sheet, startIdx, true, 'columns');
}
this.parent.viewport.leftIndex = startIdx - frozenCol;
endIdx = index_4.skipHiddenIdx(sheet, (prevLeftIdx + frozenCol) - 1, false, 'columns');
Iif (endIdx < frozenCol || endIdx < startIdx) {
this.parent.viewport.leftIndex = prevLeftIdx;
return;
}
var rightIdx = this.skipHiddenLastIdx(this.parent.viewport.rightIndex - (((endIdx - startIdx) + 1) -
this.hiddenCount(startIdx, endIdx, 'columns')), this.parent.viewport.rightIndex, 'columns');
this.parent.viewport.rightIndex = index_4.skipHiddenIdx(sheet, rightIdx, false, 'columns');
this.setThresholdWidth(width, idx - this.parent.viewport.leftIndex, frozenCol);
this.parent.renderModule.refreshUI({ rowIndex: rowIndex, colIndex: startIdx, direction: 'last', refresh: 'ColumnPart',
frozenIndexes: frozenIndexes }, this.getColAddress([startIdx, endIdx]));
}
}
else {
prevLeftIdx = this.parent.viewport.topIndex;
this.parent.viewport.leftIndex = index_4.skipHiddenIdx(sheet, this.parent.viewport.leftIndex + frozenCol, false, 'columns')
- frozenCol;
Iif (this.parent.viewport.leftIndex < 0) {
this.parent.viewport.leftIndex = index_4.skipHiddenIdx(sheet, frozenCol, true, 'columns') - frozenCol;
}
this.parent.renderModule.refreshUI({
rowIndex: rowIndex, colIndex: this.parent.viewport.leftIndex, refresh: 'Column', frozenIndexes: frozenIndexes,
skipTranslate: true
});
if (frozenRow) {
this.parent.viewport.topIndex = prevLeftIdx;
}
this.setThresholdWidth(width, idx - this.parent.viewport.leftIndex, frozenCol, this.parent.scrollSettings.isFinite && this.parent.viewport.rightIndex ===
index_4.skipHiddenIdx(sheet, sheet.colCount - 1, false, 'columns'));
this.translate({ refresh: 'Column' });
}
this.updateScrollCount(idx, 'col', threshold);
this.focusSheet();
}
else {
this.setThresholdWidth(width, threshold, frozenCol);
this.translate({ refresh: 'Column' });
}
}
args.prev.idx = idx;
}
};
VirtualScroll.prototype.focusSheet = function () {
if (!document.activeElement.classList.contains('e-text-findNext-short') || !ej2_base_1.closest(document.activeElement, '#' + this.parent.element.id)) {
index_2.focus(this.parent.element);
}
};
VirtualScroll.prototype.setThresholdHeight = function (scrollHeight, threshold, frozenRow, endReached, isInit) {
var sheet = this.parent.getActiveSheet();
var start = this.parent.viewport.topIndex + frozenRow;
var end = (start + threshold) - 1;
if (endReached || isInit || end < start) {
this.translateY = start <= frozenRow ? 0 : index_4.getRowsHeight(sheet, frozenRow, start - 1, true);
}
else {
this.translateY = scrollHeight - index_4.getRowsHeight(sheet, start, end, true);
}
};
VirtualScroll.prototype.setThresholdWidth = function (scrollWidth, threshold, frozenCol, endReached, isInit) {
var sheet = this.parent.getActiveSheet();
var start = this.parent.viewport.leftIndex + frozenCol;
var end = (start + threshold) - 1;
if (endReached || isInit || end < start) {
this.translateX = start <= frozenCol ? 0 : index_4.getColumnsWidth(sheet, frozenCol, start - 1, true);
}
else {
this.translateX = scrollWidth - index_4.getColumnsWidth(sheet, start, end, true);
}
};
VirtualScroll.prototype.translate = function (args) {
if (args.skipTranslate || !this.content) {
return;
}
var translateX = this.translateX || 0;
translateX = this.parent.enableRtl ? -translateX : translateX;
if (args.refresh === 'Row' || args.refresh === 'RowPart') {
this.content.style.transform = "translate(" + translateX + "px, " + this.translateY + "px)";
this.rowHeader.style.transform = "translate(0px, " + this.translateY + "px)";
}
if (args.refresh === 'Column' || args.refresh === 'ColumnPart') {
this.content.style.transform = "translate(" + translateX + "px, " + this.translateY + "px)";
this.colHeader.style.transform = "translate(" + translateX + "px, 0px)";
}
};
VirtualScroll.prototype.updateColumnWidth = function (args) {
if (args.refresh === 'Column') {
this.content.style.width = '';
var sheet = this.parent.getActiveSheet();
var width = index_4.getColumnsWidth(sheet, this.parent.viewport.leftIndex + this.parent.frozenColCount(sheet), this.parent.viewport.rightIndex, true);
this.colHeader.style.width = width + 'px';
this.content.style.width = width + 'px';
if (!this.parent.scrollSettings.isFinite || args.isUpdate) {
var scroll_1 = this.parent.element.querySelector('.e-scroller .e-virtualtrack');
Iif (!scroll_1) {
return;
}
var scrollWidth = parseInt(scroll_1.style.width, 10);
var newWidth = width + this.translateX + this.parent.viewport.beforeFreezeWidth;
if (newWidth > scrollWidth) {
var diff = newWidth - scrollWidth;
scroll_1.style.width = scrollWidth + diff + 'px';
}
else {
var diff = scrollWidth - newWidth;
var vTrack = this.parent.getMainContent().getElementsByClassName('e-virtualtrack')[0];
if (scrollWidth - diff < parseInt(vTrack.style.width, 10)) {
scroll_1.style.width = vTrack.style.width;
}
}
}
}
else if (!this.parent.scrollSettings.isFinite) {
var vTrack = this.parent.getMainContent().getElementsByClassName('e-virtualtrack')[0];
var vTrackHeight = parseInt(vTrack.style.height, 10);
var height = this.content.getBoundingClientRect().height;
var newHeight = height + this.translateY + this.parent.viewport.beforeFreezeHeight;
if (newHeight > vTrackHeight) {
var diff = newHeight - vTrackHeight;
vTrack.style.height = vTrackHeight + diff + 'px';
}
else {
var diff = vTrackHeight - newHeight;
var hVTrack = this.parent.getRowHeaderContent().getElementsByClassName('e-virtualtrack')[0];
Eif (vTrackHeight - diff < parseInt(hVTrack.style.height, 10)) {
vTrack.style.height = hVTrack.style.height;
}
}
}
};
VirtualScroll.prototype.updateRowColCount = function (args) {
if (!this.scroll.length) {
return;
}
var sheet = this.parent.getActiveSheet();
if (args.update === 'row') {
if (args.index !== this.scroll[this.parent.activeSheetIndex].rowCount - 1) {
var height = this.getVTrackHeight('height');
var newHeight = height;
if (args.index >= this.scroll[this.parent.activeSheetIndex].rowCount) {
if (args.start === undefined) {
newHeight += index_4.getRowsHeight(sheet, this.scroll[this.parent.activeSheetIndex].rowCount, args.index, true);
}
else {
newHeight += index_4.getRowsHeight(sheet, args.start, args.end, true);
}
}
else {
if (args.start === undefined) {
newHeight -= index_4.getRowsHeight(sheet, args.index + 1, this.scroll[this.parent.activeSheetIndex].rowCount - 1, true);
}
else {
newHeight -= index_4.getRowsHeight(sheet, args.start, args.end, true);
}
}
if (!args.isDelete && newHeight < height) {
return;
}
this.scroll[this.parent.activeSheetIndex].rowCount = args.index + 1;
this.updateVTrack(this.rowHeader, newHeight, 'height');
if (this.scroll[this.parent.activeSheetIndex].rowCount > sheet.rowCount) {
this.parent.setSheetPropertyOnMute(sheet, 'rowCount', this.scroll[this.parent.activeSheetIndex].rowCount);
}
}
}
else {
if (args.index !== this.scroll[this.parent.activeSheetIndex].colCount - 1) {
var width = this.getVTrackHeight('width');
var newWidth = width;
if (args.index >= this.scroll[this.parent.activeSheetIndex].colCount) {
Iif (args.start === undefined) {
newWidth += index_4.getColumnsWidth(sheet, this.scroll[this.parent.activeSheetIndex].colCount, args.index, true);
}
else {
newWidth += index_4.getColumnsWidth(sheet, args.start, args.end, true);
}
}
else {
if (args.start === undefined) {
newWidth -= index_4.getColumnsWidth(sheet, args.index + 1, this.scroll[this.parent.activeSheetIndex].colCount - 1, true);
}
else {
newWidth -= index_4.getColumnsWidth(sheet, args.start, args.end, true);
}
}
if (!args.isDelete && newWidth < width) {
return;
}
this.scroll[this.parent.activeSheetIndex].colCount = args.index + 1;
this.updateVTrack(this.colHeader, newWidth, 'width');
if (this.scroll[this.parent.activeSheetIndex].colCount > sheet.colCount) {
this.parent.setSheetPropertyOnMute(sheet, 'colCount', this.scroll[this.parent.activeSheetIndex].colCount);
}
}
}
};
VirtualScroll.prototype.getVTrackHeight = function (str) {
var height = this.content.nextElementSibling.style["" + str];
Iif (height.includes('e+')) {
height = height.split('px')[0];
var heightArr = height.split('e+');
return Number(heightArr[0]) * Math.pow(10, Number(heightArr[1]));
}
else {
return parseFloat(height);
}
};
VirtualScroll.prototype.updateVTrackHeight = function (args) {
var frozenRow = this.parent.frozenRowCount(this.parent.getActiveSheet());
if (args.rowIdx < this.scroll[this.parent.activeSheetIndex].rowCount) {
this.updateVTrack(this.rowHeader, this.getVTrackHeight('height') + args.threshold, 'height');
}
if (args.rowIdx >= frozenRow && args.rowIdx < this.parent.scrollModule.offset.top.idx) {
var mainPanel = this.parent.element.getElementsByClassName('e-main-panel')[0];
this.parent.scrollModule.prevScroll.scrollTop = mainPanel.scrollTop + args.threshold;
mainPanel.scrollTop += args.threshold;
this.parent.scrollModule.offset.top.size += args.threshold;
if (args.rowIdx < this.parent.viewport.topIndex + frozenRow) {
this.translateY += args.threshold;
this.translate({ refresh: 'Row' });
}
}
};
VirtualScroll.prototype.updateVTrackWidth = function (args) {
Iif (index_4.isHiddenCol(this.parent.getActiveSheet(), args.colIdx)) {
return;
}
var frozenCol = this.parent.frozenColCount(this.parent.getActiveSheet());
if (args.colIdx >= this.parent.viewport.leftIndex + frozenCol && args.colIdx <= this.parent.viewport.rightIndex) {
var hdrVTrack = this.parent.getColumnHeaderContent().getElementsByClassName('e-virtualtrack')[0];
hdrVTrack.style.width = parseFloat(hdrVTrack.style.width) + args.threshold + 'px';
var cntVTrack = this.parent.getMainContent().getElementsByClassName('e-virtualtrack')[0];
cntVTrack.style.width = parseFloat(cntVTrack.style.width) + args.threshold + 'px';
var scrollVTrack = this.parent.getScrollElement().getElementsByClassName('e-virtualtrack')[0];
scrollVTrack.style.width = parseFloat(scrollVTrack.style.width) + args.threshold + 'px';
var hdrColumn = this.parent.getColumnHeaderContent().getElementsByClassName('e-virtualable')[0];
hdrColumn.style.width = parseFloat(hdrColumn.style.width) + args.threshold + 'px';
var cntColumn = this.parent.getMainContent().getElementsByClassName('e-virtualable')[0];
cntColumn.style.width = parseFloat(cntColumn.style.width) + args.threshold + 'px';
}
else Iif (args.colIdx >= frozenCol && args.colIdx < this.parent.viewport.leftIndex + frozenCol) {
this.parent.scrollModule.offset.left.size += args.threshold;
this.translateX += args.threshold;
this.translate({ refresh: 'Column' });
}
};
VirtualScroll.prototype.updateVTrack = function (header, size, sizeStr) {
header.nextElementSibling.style["" + sizeStr] = size + "px";
this.content.nextElementSibling.style["" + sizeStr] = size + "px";
if (sizeStr === 'width' && this.parent.allowScrolling) {
this.parent.getScrollElement().firstElementChild.style.width = size + "px";
}
};
VirtualScroll.prototype.deInitProps = function () {
this.parent.viewport.leftIndex = null;
this.parent.viewport.topIndex = null;
this.parent.viewport.bottomIndex = null;
this.translateX = null;
this.translateY = null;
};
VirtualScroll.prototype.updateScrollProps = function (args) {
var _this = this;
Iif (args === void 0) { args = { sheetIndex: 0, sheets: this.parent.sheets }; }
if (this.scroll.length === 0) {
this.initScroll();
}
else {
args.sheets.forEach(function () { _this.scroll.splice(args.sheetIndex, 0, { rowCount: 0, colCount: 0 }); });
}
};
VirtualScroll.prototype.sliceScrollProps = function (args) {
if (ej2_base_1.isNullOrUndefined(args.sheetIndex)) {
this.scroll.length = 0;
}
else {
this.scroll.splice(args.sheetIndex, 1);
}
};
VirtualScroll.prototype.updateTranslate = function (args) {
Eif (args.height) {
if (args.isRender) {
this.translateY -= args.height;
}
else {
var height = parseInt(this.parent.getMainContent().getElementsByClassName('e-virtualtrack')[0].style.height, 10);
if (args.isHide) {
this.updateVTrack(this.rowHeader, height - args.height, 'height');
this.setThresholdHeight(this.translateY, ((args.prevSize - 1) - this.parent.viewport.topIndex) + 1, this.parent.frozenRowCount(this.parent.getActiveSheet()));
}
else {
this.updateVTrack(this.rowHeader, height + args.height, 'height');
this.translateY = this.translateY + args.size;
}
}
this.translate({ refresh: 'Row' });
}
Iif (args.width) {
this.translateX -= args.width;
this.translate({ refresh: 'Column' });
}
};
VirtualScroll.prototype.addEventListener = function () {
this.parent.on(index_1.beforeContentLoaded, this.createVirtualElement, this);
this.parent.on(index_1.beforeVirtualContentLoaded, this.translate, this);
this.parent.on(index_1.virtualContentLoaded, this.updateColumnWidth, this);
this.parent.on(index_2.updateTableWidth, this.updateColumnWidth, this);
this.parent.on(index_3.onVerticalScroll, this.onVerticalScroll, this);
this.parent.on(index_3.onHorizontalScroll, this.onHorizontalScroll, this);
this.parent.on(index_5.updateRowColCount, this.updateRowColCount, this);
this.parent.on(index_3.rowHeightChanged, this.updateVTrackHeight, this);
this.parent.on(index_2.colWidthChanged, this.updateVTrackWidth, this);
this.parent.on(index_3.deInitProperties, this.deInitProps, this);
this.parent.on(index_5.sheetsDestroyed, this.sliceScrollProps, this);
this.parent.on(index_5.sheetCreated, this.updateScrollProps, this);
this.parent.on(index_2.updateTranslate, this.updateTranslate, this);
this.parent.on(index_1.spreadsheetDestroyed, this.destroy, this);
};
VirtualScroll.prototype.destroy = function () {
this.removeEventListener();
var noteIndicatorElement = document.querySelectorAll('.e-addNoteIndicator');
Eif (noteIndicatorElement) {
noteIndicatorElement.forEach(function (element) {
element.remove();
});
}
if (this.rowHeader) {
index_1.removeAllChildren(this.rowHeader);
this.rowHeader.remove();
}
if (this.colHeader) {
index_1.removeAllChildren(this.colHeader);
this.colHeader.remove();
}
if (this.content) {
index_1.removeAllChildren(this.content);
this.content.remove();
}
this.rowHeader = null;
this.colHeader = null;
this.content = null;
this.parent = null;
this.scroll.length = 0;
this.translateX = null;
this.translateY = null;
};
VirtualScroll.prototype.removeEventListener = function () {
this.parent.off(index_1.beforeContentLoaded, this.createVirtualElement);
this.parent.off(index_1.beforeVirtualContentLoaded, this.translate);
this.parent.off(index_1.virtualContentLoaded, this.updateColumnWidth);
this.parent.off(index_2.updateTableWidth, this.updateColumnWidth);
this.parent.off(index_3.onVerticalScroll, this.onVerticalScroll);
this.parent.off(index_3.onHorizontalScroll, this.onHorizontalScroll);
this.parent.off(index_5.updateRowColCount, this.updateRowColCount);
this.parent.off(index_3.rowHeightChanged, this.updateVTrackHeight);
this.parent.off(index_2.colWidthChanged, this.updateVTrackWidth);
this.parent.off(index_5.sheetsDestroyed, this.sliceScrollProps);
this.parent.off(index_5.sheetCreated, this.updateScrollProps);
this.parent.off(index_2.updateTranslate, this.updateTranslate);
this.parent.off(index_1.spreadsheetDestroyed, this.destroy);
};
return VirtualScroll;
}());
exports.VirtualScroll = VirtualScroll;
});
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