82 lines
1.9 KiB
JavaScript
82 lines
1.9 KiB
JavaScript
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import {
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assign
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} from 'min-dash';
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/**
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* @typedef {import('../modeling/Modeling').default} Modeling
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*/
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var round = Math.round;
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/**
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* Service that allow replacing of elements.
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*
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* @param {Modeling} modeling
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*/
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export default function Replace(modeling, eventBus) {
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this._modeling = modeling;
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this._eventBus = eventBus;
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}
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Replace.$inject = [ 'modeling', 'eventBus' ];
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/**
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* @param {Element} oldElement - Element to be replaced
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* @param {Object} attrs - Containing information about the new element,
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* for example the new bounds and type.
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* @param {Object} hints - Custom hints that will be attached to the context. It can be used to inject data
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* that is needed in the command chain. For example it could be used in
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* eventbus.on('commandStack.shape.replace.postExecute') to change shape attributes after
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* shape creation.
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*/
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Replace.prototype.replaceElement = function(oldElement, attrs, hints) {
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if (oldElement.waypoints) {
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// TODO(nikku): we do not replace connections, yet
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return null;
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}
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var modeling = this._modeling;
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var eventBus = this._eventBus;
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eventBus.fire('replace.start', {
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element: oldElement,
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attrs,
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hints
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});
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var width = attrs.width || oldElement.width,
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height = attrs.height || oldElement.height,
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x = attrs.x || oldElement.x,
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y = attrs.y || oldElement.y,
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centerX = round(x + width / 2),
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centerY = round(y + height / 2);
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// modeling API requires center coordinates,
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// account for that when handling shape bounds
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var newElement = modeling.replaceShape(
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oldElement,
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assign(
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{},
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attrs,
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{
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x: centerX,
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y: centerY,
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width: width,
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height: height
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}
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),
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hints
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);
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eventBus.fire('replace.end', {
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element: oldElement,
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newElement,
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hints
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});
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return newElement;
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};
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