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- import {
- addClass,
- getScrollbarWidth,
- getScrollLeft,
- getWindowScrollTop,
- hasClass,
- outerWidth,
- innerHeight,
- removeClass,
- setOverlayPosition,
- resetCssTransform
- } from './../../../../helpers/dom/element';
- import Overlay from './_base';
- /**
- * @class LeftOverlay
- */
- class LeftOverlay extends Overlay {
- /**
- * @param {Walkontable} wotInstance
- */
- constructor(wotInstance) {
- super(wotInstance);
- this.clone = this.makeClone(Overlay.CLONE_LEFT);
- }
- /**
- * Checks if overlay should be fully rendered
- *
- * @returns {Boolean}
- */
- shouldBeRendered() {
- return !!(this.wot.getSetting('fixedColumnsLeft') || this.wot.getSetting('rowHeaders').length);
- }
- /**
- * Updates the left overlay position
- */
- resetFixedPosition() {
- if (!this.needFullRender || !this.wot.wtTable.holder.parentNode) {
- // removed from DOM
- return;
- }
- let overlayRoot = this.clone.wtTable.holder.parentNode;
- let headerPosition = 0;
- let preventOverflow = this.wot.getSetting('preventOverflow');
- if (this.trimmingContainer === window && (!preventOverflow || preventOverflow !== 'horizontal')) {
- let box = this.wot.wtTable.hider.getBoundingClientRect();
- let left = Math.ceil(box.left);
- let right = Math.ceil(box.right);
- let finalLeft;
- let finalTop;
- finalTop = this.wot.wtTable.hider.style.top;
- finalTop = finalTop === '' ? 0 : finalTop;
- if (left < 0 && (right - overlayRoot.offsetWidth) > 0) {
- finalLeft = -left;
- } else {
- finalLeft = 0;
- }
- headerPosition = finalLeft;
- finalLeft += 'px';
- setOverlayPosition(overlayRoot, finalLeft, finalTop);
- } else {
- headerPosition = this.getScrollPosition();
- resetCssTransform(overlayRoot);
- }
- this.adjustHeaderBordersPosition(headerPosition);
- this.adjustElementsSize();
- }
- /**
- * Sets the main overlay's horizontal scroll position
- *
- * @param {Number} pos
- */
- setScrollPosition(pos) {
- if (this.mainTableScrollableElement === window) {
- window.scrollTo(pos, getWindowScrollTop());
- } else {
- this.mainTableScrollableElement.scrollLeft = pos;
- }
- }
- /**
- * Triggers onScroll hook callback
- */
- onScroll() {
- this.wot.getSetting('onScrollVertically');
- }
- /**
- * Calculates total sum cells width
- *
- * @param {Number} from Column index which calculates started from
- * @param {Number} to Column index where calculation is finished
- * @returns {Number} Width sum
- */
- sumCellSizes(from, to) {
- let sum = 0;
- let defaultColumnWidth = this.wot.wtSettings.defaultColumnWidth;
- while (from < to) {
- sum += this.wot.wtTable.getStretchedColumnWidth(from) || defaultColumnWidth;
- from++;
- }
- return sum;
- }
- /**
- * Adjust overlay root element, childs and master table element sizes (width, height).
- *
- * @param {Boolean} [force=false]
- */
- adjustElementsSize(force = false) {
- this.updateTrimmingContainer();
- if (this.needFullRender || force) {
- this.adjustRootElementSize();
- this.adjustRootChildrenSize();
- if (!force) {
- this.areElementSizesAdjusted = true;
- }
- }
- }
- /**
- * Adjust overlay root element size (width and height).
- */
- adjustRootElementSize() {
- let masterHolder = this.wot.wtTable.holder;
- let scrollbarHeight = masterHolder.clientHeight === masterHolder.offsetHeight ? 0 : getScrollbarWidth();
- let overlayRoot = this.clone.wtTable.holder.parentNode;
- let overlayRootStyle = overlayRoot.style;
- let preventOverflow = this.wot.getSetting('preventOverflow');
- let tableWidth;
- if (this.trimmingContainer !== window || preventOverflow === 'vertical') {
- let height = this.wot.wtViewport.getWorkspaceHeight() - scrollbarHeight;
- height = Math.min(height, innerHeight(this.wot.wtTable.wtRootElement));
- overlayRootStyle.height = `${height}px`;
- } else {
- overlayRootStyle.height = '';
- }
- this.clone.wtTable.holder.style.height = overlayRootStyle.height;
- tableWidth = outerWidth(this.clone.wtTable.TABLE);
- overlayRootStyle.width = `${tableWidth === 0 ? tableWidth : tableWidth + 4}px`;
- }
- /**
- * Adjust overlay root childs size
- */
- adjustRootChildrenSize() {
- let scrollbarWidth = getScrollbarWidth();
- this.clone.wtTable.hider.style.height = this.hider.style.height;
- this.clone.wtTable.holder.style.height = this.clone.wtTable.holder.parentNode.style.height;
- if (scrollbarWidth === 0) {
- scrollbarWidth = 30;
- }
- this.clone.wtTable.holder.style.width = `${parseInt(this.clone.wtTable.holder.parentNode.style.width, 10) + scrollbarWidth}px`;
- }
- /**
- * Adjust the overlay dimensions and position
- */
- applyToDOM() {
- let total = this.wot.getSetting('totalColumns');
- if (!this.areElementSizesAdjusted) {
- this.adjustElementsSize();
- }
- if (typeof this.wot.wtViewport.columnsRenderCalculator.startPosition === 'number') {
- this.spreader.style.left = `${this.wot.wtViewport.columnsRenderCalculator.startPosition}px`;
- } else if (total === 0) {
- this.spreader.style.left = '0';
- } else {
- throw new Error('Incorrect value of the columnsRenderCalculator');
- }
- this.spreader.style.right = '';
- if (this.needFullRender) {
- this.syncOverlayOffset();
- }
- }
- /**
- * Synchronize calculated top position to an element
- */
- syncOverlayOffset() {
- if (typeof this.wot.wtViewport.rowsRenderCalculator.startPosition === 'number') {
- this.clone.wtTable.spreader.style.top = `${this.wot.wtViewport.rowsRenderCalculator.startPosition}px`;
- } else {
- this.clone.wtTable.spreader.style.top = '';
- }
- }
- /**
- * Scrolls horizontally to a column at the left edge of the viewport
- *
- * @param sourceCol {Number} Column index which you want to scroll to
- * @param [beyondRendered=false] {Boolean} if `true`, scrolls according to the bottom edge (top edge is by default)
- */
- scrollTo(sourceCol, beyondRendered) {
- let newX = this.getTableParentOffset();
- let sourceInstance = this.wot.cloneSource ? this.wot.cloneSource : this.wot;
- let mainHolder = sourceInstance.wtTable.holder;
- let scrollbarCompensation = 0;
- if (beyondRendered && mainHolder.offsetWidth !== mainHolder.clientWidth) {
- scrollbarCompensation = getScrollbarWidth();
- }
- if (beyondRendered) {
- newX += this.sumCellSizes(0, sourceCol + 1);
- newX -= this.wot.wtViewport.getViewportWidth();
- } else {
- newX += this.sumCellSizes(this.wot.getSetting('fixedColumnsLeft'), sourceCol);
- }
- newX += scrollbarCompensation;
- this.setScrollPosition(newX);
- }
- /**
- * Gets table parent left position
- *
- * @returns {Number}
- */
- getTableParentOffset() {
- let preventOverflow = this.wot.getSetting('preventOverflow');
- let offset = 0;
- if (!preventOverflow && this.trimmingContainer === window) {
- offset = this.wot.wtTable.holderOffset.left;
- }
- return offset;
- }
- /**
- * Gets the main overlay's horizontal scroll position
- *
- * @returns {Number} Main table's vertical scroll position
- */
- getScrollPosition() {
- return getScrollLeft(this.mainTableScrollableElement);
- }
- /**
- * Adds css classes to hide the header border's header (cell-selection border hiding issue)
- *
- * @param {Number} position Header X position if trimming container is window or scroll top if not
- */
- adjustHeaderBordersPosition(position) {
- const masterParent = this.wot.wtTable.holder.parentNode;
- const rowHeaders = this.wot.getSetting('rowHeaders');
- const fixedColumnsLeft = this.wot.getSetting('fixedColumnsLeft');
- const totalRows = this.wot.getSetting('totalRows');
- if (totalRows) {
- removeClass(masterParent, 'emptyRows');
- } else {
- addClass(masterParent, 'emptyRows');
- }
- if (fixedColumnsLeft && !rowHeaders.length) {
- addClass(masterParent, 'innerBorderLeft');
- } else if (!fixedColumnsLeft && rowHeaders.length) {
- let previousState = hasClass(masterParent, 'innerBorderLeft');
- if (position) {
- addClass(masterParent, 'innerBorderLeft');
- } else {
- removeClass(masterParent, 'innerBorderLeft');
- }
- if (!previousState && position || previousState && !position) {
- this.wot.wtOverlays.adjustElementsSize();
- }
- }
- }
- }
- Overlay.registerOverlay(Overlay.CLONE_LEFT, LeftOverlay);
- export default LeftOverlay;
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