exceljs/dist/es5/xlsx/xform/sheet/sheet-view-xform.js

Excel Workbook Manager - Read and Write xlsx and csv Files.

/**
 * Copyright (c) 2016 Guyon Roche
 * LICENCE: MIT - please refer to LICENCE file included with this module
 * or https://github.com/guyonroche/exceljs/blob/master/LICENSE
 */

'use strict';

var utils = require('../../../utils/utils');
var colCache = require('../../../utils/col-cache');
var BaseXform = require('../base-xform');

var VIEW_STATES = {
  frozen: 'frozen',
  frozenSplit: 'frozen',
  split: 'split'
};

var SheetViewXform = module.exports = function () {};

utils.inherits(SheetViewXform, BaseXform, {

  get tag() {
    return 'sheetView';
  },

  prepare: function prepare(model) {
    switch (model.state) {
      case 'frozen':
      case 'split':
        break;
      default:
        model.state = 'normal';
        break;
    }
  },

  render: function render(xmlStream, model) {
    xmlStream.openNode('sheetView', {
      workbookViewId: model.workbookViewId || 0
    });
    var add = function add(name, value, included) {
      if (included) {
        xmlStream.addAttribute(name, value);
      }
    };
    add('tabSelected', '1', model.tabSelected);
    add('showRuler', '0', model.showRuler === false);
    add('showRowColHeaders', '0', model.showRowColHeaders === false);
    add('showGridLines', '0', model.showGridLines === false);
    add('zoomScale', model.zoomScale, model.zoomScale);
    add('zoomScaleNormal', model.zoomScaleNormal, model.zoomScaleNormal);
    add('view', model.style, model.style);

    var topLeftCell, xSplit, ySplit, activePane;
    switch (model.state) {
      case 'frozen':
        xSplit = model.xSplit || 0;
        ySplit = model.ySplit || 0;
        topLeftCell = model.topLeftCell || colCache.getAddress(ySplit + 1, xSplit + 1).address;
        activePane = model.xSplit && model.ySplit && 'bottomRight' || model.xSplit && 'topRight' || 'bottomLeft';

        xmlStream.leafNode('pane', {
          xSplit: model.xSplit || undefined,
          ySplit: model.ySplit || undefined,
          topLeftCell: topLeftCell,
          activePane: activePane,
          state: 'frozen'
        });
        xmlStream.leafNode('selection', {
          pane: activePane,
          activeCell: model.activeCell,
          sqref: model.activeCell
        });
        break;
      case 'split':
        if (model.activePane === 'topLeft') {
          model.activePane = undefined;
        }
        xmlStream.leafNode('pane', {
          xSplit: model.xSplit || undefined,
          ySplit: model.ySplit || undefined,
          topLeftCell: model.topLeftCell,
          activePane: model.activePane
        });
        xmlStream.leafNode('selection', {
          pane: model.activePane,
          activeCell: model.activeCell,
          sqref: model.activeCell
        });
        break;
      case 'normal':
        if (model.activeCell) {
          xmlStream.leafNode('selection', {
            activeCell: model.activeCell,
            sqref: model.activeCell
          });
        }
        break;
      default:
        break;
    }
    xmlStream.closeNode();
  },

  parseOpen: function parseOpen(node) {
    switch (node.name) {
      case 'sheetView':
        this.sheetView = {
          workbookViewId: parseInt(node.attributes.workbookViewId, 10),
          tabSelected: node.attributes.tabSelected === '1',
          showRuler: !(node.attributes.showRuler === '0'),
          showRowColHeaders: !(node.attributes.showRowColHeaders === '0'),
          showGridLines: !(node.attributes.showGridLines === '0'),
          zoomScale: parseInt(node.attributes.zoomScale || '100', 10),
          zoomScaleNormal: parseInt(node.attributes.zoomScaleNormal || '100', 10),
          style: node.attributes.view
        };
        this.pane = undefined;
        this.selections = {};
        return true;
      case 'pane':
        this.pane = {
          xSplit: parseInt(node.attributes.xSplit || '0', 10),
          ySplit: parseInt(node.attributes.ySplit || '0', 10),
          topLeftCell: node.attributes.topLeftCell,
          activePane: node.attributes.activePane || 'topLeft',
          state: node.attributes.state
        };
        return true;
      case 'selection':
        var name = node.attributes.pane || 'topLeft';
        this.selections[name] = {
          pane: name,
          activeCell: node.attributes.activeCell
        };
        return true;
      default:
        return false;
    }
  },
  parseText: function parseText() {},
  parseClose: function parseClose(name) {
    var model, selection;
    switch (name) {
      case 'sheetView':
        if (this.sheetView && this.pane) {
          model = this.model = {
            workbookViewId: this.sheetView.workbookViewId,
            state: VIEW_STATES[this.pane.state] || 'split', // split is default
            xSplit: this.pane.xSplit,
            ySplit: this.pane.ySplit,
            topLeftCell: this.pane.topLeftCell,
            showRuler: this.sheetView.showRuler,
            showRowColHeaders: this.sheetView.showRowColHeaders,
            showGridLines: this.sheetView.showGridLines,
            zoomScale: this.sheetView.zoomScale,
            zoomScaleNormal: this.sheetView.zoomScaleNormal
          };
          if (this.model.state === 'split') {
            model.activePane = this.pane.activePane;
          }
          selection = this.selections[this.pane.activePane];
          if (selection && selection.activeCell) {
            model.activeCell = selection.activeCell;
          }
          if (this.sheetView.style) {
            model.style = this.sheetView.style;
          }
        } else {
          model = this.model = {
            workbookViewId: this.sheetView.workbookViewId,
            state: 'normal',
            showRuler: this.sheetView.showRuler,
            showRowColHeaders: this.sheetView.showRowColHeaders,
            showGridLines: this.sheetView.showGridLines,
            zoomScale: this.sheetView.zoomScale,
            zoomScaleNormal: this.sheetView.zoomScaleNormal
          };
          selection = this.selections.topLeft;
          if (selection && selection.activeCell) {
            model.activeCell = selection.activeCell;
          }
          if (this.sheetView.style) {
            model.style = this.sheetView.style;
          }
        }
        return false;
      default:
        return true;
    }
  },

  reconcile: function reconcile() {}
});
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