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https://github.com/FoggedLens/iD.git
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7e68e8e114
This is a facade interface that ties together a bunch of different internal objects and will make it easier to write tests for behaviors, modes, and operations.
20 lines
521 B
JavaScript
20 lines
521 B
JavaScript
// A controller holds a single action at a time and calls `.enter` and `.exit`
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// to bind and unbind actions.
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iD.Controller = function() {
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var event = d3.dispatch('enter', 'exit');
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var controller = { mode: null };
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controller.enter = function(mode) {
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if (controller.mode) {
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controller.mode.exit();
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event.exit(controller.mode);
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}
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mode.enter();
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controller.mode = mode;
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event.enter(mode);
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};
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return d3.rebind(controller, event, 'on');
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};
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