81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
ground dataspace G {
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message type shiftClicked(fragmentId);
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Syndicate.UI.spawnUIDriver();
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spawn {
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var uiRoot = new Syndicate.UI.Anchor();
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assert uiRoot.html('#place', '<svg id="svgroot" width="100%" height="100%"/>');
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spawn {
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var ui = new Syndicate.UI.Anchor();
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assert ui.html('#svgroot',
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'<rect id="underlay" x="0" y="0" width="100%" height="100%" fill="grey"/>',
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-1);
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on message ui.event('.', 'click', $e) {
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var svg = document.getElementById('svgroot');
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var pt = svg.createSVGPoint();
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pt.x = e.clientX;
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pt.y = e.clientY;
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pt = pt.matrixTransform(svg.getScreenCTM().inverse());
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spawnRectangle(pt.x, pt.y);
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}
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}
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spawn {
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field this.x = 50;
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field this.y = 50;
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var ui = new Syndicate.UI.Anchor();
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assert ui.html('#svgroot',
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'<circle fill="green" r=45 cx="'+this.x+'" cy="'+this.y+'"/>',
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0);
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draggableMixin(this, ui);
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}
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///////////////////////////////////////////////////////////////////////////
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function spawnRectangle(x0, y0) {
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var length = 90;
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spawn {
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field this.x = x0 - length / 2;
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field this.y = y0 - length / 2;
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var ui = new Syndicate.UI.Anchor();
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assert ui.html('#svgroot',
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'<rect fill="yellow" stroke="black" stroke-width="3" width="90" height="90"'+
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' x="'+this.x+'" y="'+this.y+'"/>',
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0);
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draggableMixin(this, ui);
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on message ui.event('.', 'mousedown', $e) {
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if (e.shiftKey) { :: shiftClicked(ui.fragmentId); }
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}
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stop on message shiftClicked(ui.fragmentId);
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}
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}
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function draggableMixin(obj, ui) {
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idle();
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function idle() {
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react {
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stop on message ui.event('.', 'mousedown', $e) {
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dragging(e.clientX - obj.x, e.clientY - obj.y);
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}
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}
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}
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function dragging(dx, dy) {
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react {
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on message uiRoot.event('.', 'mousemove', $e) {
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obj.x = e.clientX - dx;
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obj.y = e.clientY - dy;
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}
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stop on message uiRoot.event('.', 'mouseup', _) {
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idle();
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}
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}
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}
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}
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}
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}
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