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/*! * VisualEditor SumCellsContextItem class. * * @copyright See AUTHORS.txt */ /** * Show the sum and average of numeric values across a table selection. * * @class * @extends ve.ui.LinearContextItem * * @param {ve.ui.LinearContext} context Context the item is in * @param {ve.dm.Model} model Model the item is related to * @param {Object} [config] Configuration options */ ve.ui.SumCellsContextItem = function VeUiSumCellsContextItem( context, model, config ) { // Parent constructor ve.ui.SumCellsContextItem.super.call( this, context, model, config ); // Initialization this.$element.addClass( 've-ui-sumCellsContextItem' ); }; /* Inheritance */ OO.inheritClass( ve.ui.SumCellsContextItem, ve.ui.LinearContextItem ); /* Static Properties */ ve.ui.SumCellsContextItem.static.name = 'sumCells'; ve.ui.SumCellsContextItem.static.icon = 'mathematics'; ve.ui.SumCellsContextItem.static.editable = false; ve.ui.SumCellsContextItem.static.embeddable = false; /* Methods */ /** * @inheritdoc */ ve.ui.SumCellsContextItem.static.isCompatibleWith = function ( model ) { return model instanceof ve.dm.Node && model.isCellable(); }; /** * @inheritdoc */ ve.ui.SumCellsContextItem.prototype.setup = function () { // Parent method ve.ui.SumCellsContextItem.super.prototype.setup.apply( this, arguments ); // If not disabled, selection must be table and spanning multiple matrix cells const selection = this.getFragment().getSurface().getSelection(), documentModel = this.getFragment().getDocument(), documentView = this.context.getSurface().getView().getDocument(); let count = 0; // There's some situations involving transclusion table cells which // can make us have a LinearSelection here, so make sure this will // work: let sum; if ( selection instanceof ve.dm.TableSelection ) { const cells = selection.getMatrixCells( documentModel, true ); if ( cells.length > 1 ) { sum = cells.reduce( ( s, cell ) => { let number; if ( !cell.isPlaceholder() ) { // Get text from view rendering to catch numbers in alien nodes, etc. const viewCell = documentView.getBranchNodeFromOffset( cell.node.getRange().start ); number = ve.init.platform.parseNumber( viewCell.$element.text() ); if ( !isNaN( number ) ) { count++; return s + number; } } return s; }, 0 ); } } // Only show if more than one numeric value was selected if ( count > 1 ) { this.setLabel( ve.msg( 'visualeditor-table-sum', ve.init.platform.formatNumber( sum ), ve.init.platform.formatNumber( sum / count ) ) ); } else { this.$element.detach(); } }; /* Registration */ ve.ui.contextItemFactory.register( ve.ui.SumCellsContextItem );
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