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d344adc21e
If present, it will be called with the model object instead of instantiating the view constructor directly and assigning a model on it. This gives users more flexibility when constructing views.
108 lines
3.8 KiB
CoffeeScript
108 lines
3.8 KiB
CoffeeScript
ViewRegistry = require '../src/view-registry'
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{View} = require '../src/space-pen-extensions'
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describe "ViewRegistry", ->
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registry = null
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beforeEach ->
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registry = new ViewRegistry
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describe "::getView(object)", ->
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describe "when passed a DOM node", ->
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it "returns the given DOM node", ->
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node = document.createElement('div')
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expect(registry.getView(node)).toBe node
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describe "when passed a SpacePen view", ->
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it "returns the root node of the view with a __spacePenView property pointing at the SpacePen view", ->
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class TestView extends View
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@content: -> @div "Hello"
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view = new TestView
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node = registry.getView(view)
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expect(node.textContent).toBe "Hello"
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expect(node.__spacePenView).toBe view
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describe "when passed a model object", ->
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describe "when a view provider is registered matching the object's constructor", ->
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describe "when the provider has a viewConstructor property", ->
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it "constructs a view element and assigns the model on it", ->
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class TestModel
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class TestModelSubclass extends TestModel
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class TestView
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setModel: (@model) ->
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model = new TestModel
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registry.addViewProvider
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modelConstructor: TestModel
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viewConstructor: TestView
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view = registry.getView(model)
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expect(view instanceof TestView).toBe true
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expect(view.model).toBe model
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subclassModel = new TestModelSubclass
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view2 = registry.getView(subclassModel)
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expect(view2 instanceof TestView).toBe true
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expect(view2.model).toBe subclassModel
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describe "when the provider has a createView method", ->
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it "constructs a view element by calling the createView method with the model", ->
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class TestModel
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class TestView
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setModel: (@model) ->
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registry.addViewProvider
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modelConstructor: TestModel
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createView: (model) ->
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view = new TestView
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view.setModel(model)
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view
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model = new TestModel
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view = registry.getView(model)
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expect(view instanceof TestView).toBe true
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expect(view.model).toBe model
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describe "when no view provider is registered for the object's constructor", ->
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describe "when the object has a .getViewClass() method", ->
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it "builds an instance of the view class with the model, then returns its root node with a __spacePenView property pointing at the view", ->
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class TestView extends View
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@content: (model) -> @div model.name
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initialize: (@model) ->
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class TestModel
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constructor: (@name) ->
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getViewClass: -> TestView
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model = new TestModel("hello")
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node = registry.getView(model)
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expect(node.textContent).toBe "hello"
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view = node.__spacePenView
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expect(view instanceof TestView).toBe true
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expect(view.model).toBe model
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# returns the same DOM node for repeated calls
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expect(registry.getView(model)).toBe node
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describe "when the object has no .getViewClass() method", ->
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it "throws an exception", ->
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expect(-> registry.getView(new Object)).toThrow()
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describe "::addViewProvider(providerSpec)", ->
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it "returns a disposable that can be used to remove the provider", ->
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class TestModel
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class TestView
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setModel: (@model) ->
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disposable = registry.addViewProvider
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modelConstructor: TestModel
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viewConstructor: TestView
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expect(registry.getView(new TestModel) instanceof TestView).toBe true
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disposable.dispose()
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expect(-> registry.getView(new TestModel)).toThrow()
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