mirror of
https://github.com/scinote-eln/scinote-web.git
synced 2024-11-14 21:24:54 +08:00
486 lines
14 KiB
JavaScript
486 lines
14 KiB
JavaScript
// * Licensed under the MIT license
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(function(Handsontable) {
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'use strict';
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// [MODIFICATION] (sci 2588)
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var formulasResults = {};
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// _!_MODIFICATION
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function HandsontableFormula() {
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var isFormula = function(value) {
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if (value) {
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if (value[0] === '=') {
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return true;
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}
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}
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return false;
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};
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// [MODIFICATION] (sci 2588)
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var beforeRender = function (isForced) {
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formulasResults = {};
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var data = this.getData();
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for (var i = 0; i < data.length; ++i) {
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for (var j = 0; j < data[i].length; ++j) {
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var value = data[i][j];
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if (value && value[0] === '=') {
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var cellId = this.plugin.utils.translateCellCoords({row: i, col: j});
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this.plugin.matrix.removeItem(cellId);
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}
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}
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}
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};
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// _!_MODIFICATION
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var formulaRenderer = function(instance, TD, row, col, prop, value, cellProperties) {
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if (instance.formulasEnabled && isFormula(value)) {
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// translate coordinates into cellId
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var cellId = instance.plugin.utils.translateCellCoords({
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row: row,
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col: col
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}),
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prevFormula = null,
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formula = null,
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needUpdate = false,
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error, result;
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if (!cellId) {
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return;
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}
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// get cell data
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var item = instance.plugin.matrix.getItem(cellId);
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if (item) {
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needUpdate = !! item.needUpdate;
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if (item.error) {
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prevFormula = item.formula;
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error = item.error;
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if (needUpdate) {
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error = null;
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}
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}
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}
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// check if typed formula or cell value should be recalculated
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if ((value && value[0] === '=') || needUpdate) {
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// [MODIFICATION] (sci 2588)
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if (formulasResults[cellId] === undefined) {
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// _!_MODIFICATION
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formula = value.substr(1).toUpperCase();
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if (!error || formula !== prevFormula) {
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var currentItem = item;
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if (!currentItem) {
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// define item to rulesJS matrix if not exists
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item = {
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id: cellId,
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formula: formula
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};
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// add item to matrix
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currentItem = instance.plugin.matrix.addItem(item);
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}
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// parse formula
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var newValue = instance.plugin.parse(formula, {
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row: row,
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col: col,
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id: cellId
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});
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// check if update needed
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needUpdate = (newValue.error === '#NEED_UPDATE');
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// update item value and error
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instance.plugin.matrix.updateItem(currentItem, {
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formula: formula,
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value: newValue.result,
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error: newValue.error,
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needUpdate: needUpdate
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});
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error = newValue.error;
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result = newValue.result;
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// update cell value in hot
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value = error || result;
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}
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// [MODIFICATION] (sci 2588)
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} else {
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var newValue = formulasResults[cellId];
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error = newValue.error;
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result = newValue.result;
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value = error || result;
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}
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// _!_MODIFICATION
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}
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if (error) {
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// clear cell value
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if (!value) {
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// reset error
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error = null;
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} else {
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// show error
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value = error;
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}
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}
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}
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// apply changes
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if (cellProperties.type === 'numeric') {
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numericCell.renderer.apply(this, [instance, TD, row, col, prop, value, cellProperties]);
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} else {
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textCell.renderer.apply(this, [instance, TD, row, col, prop, value, cellProperties]);
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}
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};
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var afterChange = function(changes, source) {
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var instance = this;
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if (!instance.formulasEnabled) {
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return;
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}
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if (source === 'edit' || source === 'undo' || source === 'autofill') {
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var rerender = false;
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changes.forEach(function(item) {
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var row = item[0],
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col = item[1],
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prevValue = item[2],
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value = item[3];
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var cellId = instance.plugin.utils.translateCellCoords({
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row: row,
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col: col
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});
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// if changed value, all references cells should be recalculated
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if (value[0] !== '=' || prevValue !== value) {
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instance.plugin.matrix.removeItem(cellId);
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// get referenced cells
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var deps = instance.plugin.matrix.getDependencies(cellId);
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// update cells
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deps.forEach(function(itemId) {
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instance.plugin.matrix.updateItem(itemId, {
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needUpdate: true
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});
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});
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rerender = true;
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}
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});
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if (rerender) {
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instance.render();
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}
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}
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};
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var beforeAutofillInsidePopulate = function(index, direction, data, deltas, iterators, selected) {
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var instance = this;
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var r = index.row,
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c = index.col,
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value = data[r][c],
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delta = 0,
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rlength = data.length, // rows
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clength = data ? data[0].length : 0; //cols
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if (value[0] === '=') { // formula
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if (['down', 'up'].indexOf(direction) !== -1) {
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delta = rlength * iterators.row;
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} else if (['right', 'left'].indexOf(direction) !== -1) {
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delta = clength * iterators.col;
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}
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return {
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value: instance.plugin.utils.updateFormula(value, direction, delta),
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iterators: iterators
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}
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} else { // other value
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// increment or decrement values for more than 2 selected cells
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if (rlength >= 2 || clength >= 2) {
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var newValue = instance.plugin.helper.number(value),
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ii,
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start;
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if (instance.plugin.utils.isNumber(newValue)) {
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if (['down', 'up'].indexOf(direction) !== -1) {
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delta = deltas[0][c];
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if (direction === 'down') {
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newValue += (delta * rlength * iterators.row);
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} else {
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ii = (selected.row - r) % rlength;
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start = ii > 0 ? rlength - ii : 0;
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newValue = instance.plugin.helper.number(data[start][c]);
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newValue += (delta * rlength * iterators.row);
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// last element in array -> decrement iterator
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// iterator cannot be less than 1
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if (iterators.row > 1 && (start + 1) === rlength) {
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iterators.row--;
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}
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}
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} else if (['right', 'left'].indexOf(direction) !== -1) {
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delta = deltas[r][0];
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if (direction === 'right') {
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newValue += (delta * clength * iterators.col);
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} else {
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ii = (selected.col - c) % clength;
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start = ii > 0 ? clength - ii : 0;
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newValue = instance.plugin.helper.number(data[r][start]);
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newValue += (delta * clength * (iterators.col || 1));
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// last element in array -> decrement iterator
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// iterator cannot be less than 1
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if (iterators.col > 1 && (start + 1) === clength) {
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iterators.col--;
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}
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}
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}
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return {
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value: newValue,
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iterators: iterators
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}
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}
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}
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}
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return {
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value: value,
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iterators: iterators
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};
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};
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var afterCreateRow = function(row, amount) {
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var instance = this;
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var selectedRow = instance.plugin.utils.isArray(instance.getSelected()) ? instance.getSelected()[0] : undefined;
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if (instance.plugin.utils.isUndefined(selectedRow)) {
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return;
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}
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var direction = (selectedRow >= row) ? 'before' : 'after',
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items = instance.plugin.matrix.getRefItemsToRow(row),
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counter = 1,
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changes = [];
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items.forEach(function(id) {
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var item = instance.plugin.matrix.getItem(id),
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formula = instance.plugin.utils.changeFormula(item.formula, 1, {
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row: row
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}), // update formula if needed
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newId = id;
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if (formula !== item.formula) { // formula updated
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// change row index and get new coordinates
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if ((direction === 'before' && selectedRow <= item.row) || (direction === 'after' && selectedRow < item.row)) {
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newId = instance.plugin.utils.changeRowIndex(id, counter);
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}
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var cellCoords = instance.plugin.utils.cellCoords(newId);
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if (newId !== id) {
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// remove current item from matrix
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instance.plugin.matrix.removeItem(id);
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}
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// set updated formula in new cell
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changes.push([cellCoords.row, cellCoords.col, '=' + formula]);
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}
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});
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if (items) {
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instance.plugin.matrix.removeItemsBelowRow(row);
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}
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if (changes) {
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instance.setDataAtCell(changes);
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}
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};
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var afterCreateCol = function(col) {
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var instance = this;
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var selectedCol = instance.plugin.utils.isArray(instance.getSelected()) ? instance.getSelected()[1] : undefined;
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if (instance.plugin.utils.isUndefined(selectedCol)) {
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return;
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}
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var items = instance.plugin.matrix.getRefItemsToColumn(col),
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counter = 1,
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direction = (selectedCol >= col) ? 'before' : 'after',
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changes = [];
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items.forEach(function(id) {
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var item = instance.plugin.matrix.getItem(id),
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formula = instance.plugin.utils.changeFormula(item.formula, 1, {
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col: col
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}), // update formula if needed
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newId = id;
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if (formula !== item.formula) { // formula updated
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// change col index and get new coordinates
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if ((direction === 'before' && selectedCol <= item.col) || (direction === 'after' && selectedCol < item.col)) {
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newId = instance.plugin.utils.changeColIndex(id, counter);
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}
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var cellCoords = instance.plugin.utils.cellCoords(newId);
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if (newId !== id) {
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// remove current item from matrix if id changed
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instance.plugin.matrix.removeItem(id);
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}
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// set updated formula in new cell
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changes.push([cellCoords.row, cellCoords.col, '=' + formula]);
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}
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});
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if (items) {
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instance.plugin.matrix.removeItemsBelowCol(col);
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}
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if (changes) {
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instance.setDataAtCell(changes);
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}
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};
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var formulaCell = {
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renderer: formulaRenderer,
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editor: Handsontable.editors.TextEditor,
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dataType: 'formula'
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};
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var textCell = {
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renderer: Handsontable.renderers.TextRenderer,
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editor: Handsontable.editors.TextEditor
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};
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var numericCell = {
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renderer: Handsontable.renderers.NumericRenderer,
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editor: Handsontable.editors.NumericEditor
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};
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this.init = function() {
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var instance = this;
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instance.formulasEnabled = !! instance.getSettings().formulas;
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if (instance.formulasEnabled) {
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var custom = {
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//
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// [MODIFICATION] (sci 2588)
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// Previously: "cellValue: instance.getDataAtCell"
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//
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cellValue: function(row, col){
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var value = instance.getDataAtCell(row, col);
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if (value && value[0] === '=') {
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var formula = value.substr(1).toUpperCase();
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var cellId = instance.plugin.utils.translateCellCoords({row: row, col: col});
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var item = instance.plugin.matrix.getItem(cellId);
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if (!item) {
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item = instance.plugin.matrix.addItem({id: cellId, formula: formula});
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} else {
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item = instance.plugin.matrix.updateItem({id: cellId, formula: formula});
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}
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// parse formula
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var newValue = instance.plugin.parse(formula, {row: row, col: col, id: cellId});
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// cache result
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formulasResults[cellId] = newValue;
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// update item value and error
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instance.plugin.matrix.updateItem(item, {formula: formula, value: newValue.result, error: newValue.error});
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value = newValue.error || newValue.result;
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}
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return value;
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}
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// _!_MODIFICATION
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};
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instance.plugin = new ruleJS();
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instance.plugin.init();
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instance.plugin.custom = custom;
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Handsontable.cellTypes.registerCellType('formula', {
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editor: Handsontable.editors.TextEditor,
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renderer: formulaRenderer
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});
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Handsontable.cellTypes.text.renderer = formulaRenderer;
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Handsontable.cellTypes.numeric.renderer = formulaRenderer;
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// [MODIFICATION] (sci 2588)
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// This hook is new
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instance.addHook('beforeRender', beforeRender);
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// _!_MODIFICATION
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instance.addHook('afterChange', afterChange);
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instance.addHook('beforeAutofillInsidePopulate', beforeAutofillInsidePopulate);
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instance.addHook('afterCreateRow', afterCreateRow);
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instance.addHook('afterCreateCol', afterCreateCol);
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} else {
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// [MODIFICATION] (sci 2588)
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// This hook is new
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instance.removeHook('beforeRender', beforeRender);
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// _!_MODIFICATION
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instance.removeHook('afterChange', afterChange);
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instance.removeHook('beforeAutofillInsidePopulate', beforeAutofillInsidePopulate);
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instance.removeHook('afterCreateRow', afterCreateRow);
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instance.removeHook('afterCreateCol', afterCreateCol);
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}
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};
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}
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var htFormula = new HandsontableFormula();
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Handsontable.hooks.add('beforeInit', htFormula.init);
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Handsontable.hooks.add('afterUpdateSettings', function() {
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htFormula.init.call(this, 'afterUpdateSettings')
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});
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})(Handsontable);
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