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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.$element.addClass( 've-ui-sumCellsContextItem' );
};
/* Inheritance */
OO.inheritClass( ve.ui.SumCellsContextItem, ve.ui.LinearContextItem );
/* Static Properties */
ve.ui.SumCellsContextItem.static.name = 'sumCells';
ve.ui.SumCellsContextItem.static.icon = 'mathematics';
ve.ui.SumCellsContextItem.static.editable = false;
ve.ui.SumCellsContextItem.static.embeddable = false;
/* Methods */
/**
* @inheritdoc
*/
ve.ui.SumCellsContextItem.static.isCompatibleWith = function ( model ) {
return model instanceof ve.dm.Node && model.isCellable();
};
/**
* @inheritdoc
*/
ve.ui.SumCellsContextItem.prototype.setup = function () {
// Parent method
ve.ui.SumCellsContextItem.super.prototype.setup.apply( this, arguments );
// If not disabled, selection must be table and spanning multiple matrix cells
var count = 0,
selection = this.getFragment().getSurface().getSelection(),
documentModel = this.getFragment().getDocument(),
documentView = this.context.getSurface().getView().getDocument();
// There's some situations involving transclusion table cells which
// can make us have a LinearSelection here, so make sure this will
// work:
var sum;
Eif ( selection instanceof ve.dm.TableSelection ) {
var cells = selection.getMatrixCells( documentModel, true );
Iif ( cells.length > 1 ) {
sum = cells.reduce( function ( s, cell ) {
var number;
if ( !cell.isPlaceholder() ) {
// Get text from view rendering to catch numbers in alien nodes, etc.
var viewCell = documentView.getBranchNodeFromOffset( cell.node.getRange().start );
number = ve.init.platform.parseNumber(
viewCell.$element.text()
);
if ( !isNaN( number ) ) {
count++;
return s + number;
}
}
return s;
}, 0 );
}
}
// Only show if more than one numeric value was selected
Iif ( 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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