/**
* Expand the target shape if the bounding box of the moved elements is near or on an edge,
* considering the position of the bounding box in relation to the parent's edge plus padding.
* The amount to expand can be defined for each edge in the OFFSET object.
*
* @param {Array<Shape>} elements
* @param {Shape|String} target|targetId
*/
function expand(elements, target) {
if (typeof target === 'string') {
target = elementRegistry.get(target);
}
var bbox = getBoundingBox(elements),
canExpand = true;
if (!is(target, 'bpmn:Participant') && !is(target, 'bpmn:Lane') && !(is(target, 'bpmn:SubProcess'))) {
return;
}
forEach(elements, function(element) {
if (is(element, 'bpmn:Lane') || element.labelTarget) {
canExpand = false;
return;
}
});
if (!canExpand) {
return;
}
var inbounds = isInbounds(bbox, target, PADDING);
var newBounds = pick(target, [ 'x', 'y', 'width', 'height' ]);
if (inbounds.top) {
var topPosition = bbox.y - OFFSET.top;
assign(newBounds, { y: topPosition, height: newBounds.height + newBounds.y - topPosition });
}
if (inbounds.bottom) {
assign(newBounds, { height: bbox.y + bbox.height + OFFSET.bottom - newBounds.y });
}
if (inbounds.left) {
var leftPosition = bbox.x - OFFSET.left;
assign(newBounds, { x: leftPosition, width: newBounds.width + newBounds.x - leftPosition });
}
if (inbounds.right) {
assign(newBounds, { width: bbox.x + bbox.width + OFFSET.right - newBounds.x });
}
if (is(target, 'bpmn:Participant')) {
modeling.resizeLane(target, newBounds);
} else {
modeling.resizeShape(target, newBounds);
}
var parent = target.parent;
// recursively expand parent elements
if (parent) {
expand([ target ], parent);
}
}
it('should move to origin', inject(function(editorActions) {
// given
var elements = editorActions.trigger('selectElements'),
boundingBox;
// when
editorActions.trigger('moveToOrigin');
boundingBox = getBBox(elements);
// then
expect(pick(boundingBox, [ 'x', 'y' ])).to.eql({ x: 0, y: 0 });
}));
moveToOrigin: function() {
var rootElement = canvas.getRootElement(),
boundingBox,
elements;
if (is(rootElement, 'bpmn:Collaboration')) {
elements = elementRegistry.filter(function(element) {
return is(element.parent, 'bpmn:Collaboration');
});
} else {
elements = elementRegistry.filter(function(element) {
return element !== rootElement && !is(element.parent, 'bpmn:SubProcess');
});
}
boundingBox = getBBox(elements);
modeling.moveElements(elements, { x: -boundingBox.x, y: -boundingBox.y }, rootElement);
}
function initParticipantSnapping(context, shape, elements) {
if (!elements.length) {
return;
}
var snapBox = getBoundingBox(elements.filter(function(e) {
return !e.labelTarget && !e.waypoints;
}));
snapBox.x -= 50;
snapBox.y -= 20;
snapBox.width += 70;
snapBox.height += 40;
// adjust shape height to include bounding box
shape.width = Math.max(shape.width, snapBox.width);
shape.height = Math.max(shape.height, snapBox.height);
context.participantSnapBox = snapBox;
}