Mailspring/app/spec/list-selection-spec.coffee

213 lines
7.8 KiB
CoffeeScript

_ = require 'underscore'
{Thread} = require 'nylas-exports'
{ListTabular} = require 'nylas-component-kit'
ListDataSource = ListTabular.DataSource
ListSelection = ListTabular.Selection
describe "ListSelection", ->
beforeEach ->
@trigger = jasmine.createSpy('trigger')
@items = []
@items.push(new Thread(id: "#{ii}")) for ii in [0..99]
@view = new ListDataSource()
@view.indexOfId = jasmine.createSpy('indexOfId').andCallFake (id) =>
_.findIndex(@items, _.matcher({id}))
@view.get = jasmine.createSpy('get').andCallFake (idx) =>
@items[idx]
@selection = new ListSelection(@view, @trigger)
it "should initialize with an empty set", ->
expect(@selection.items()).toEqual([])
expect(@selection.ids()).toEqual([])
it "should throw an exception if a view is not provided", ->
expect( => new ListSelection(null, @trigger)).toThrow()
describe "set", ->
it "should replace the current selection with the provided models", ->
@selection.set([@items[2], @items[4], @items[7]])
expect(@selection.ids()).toEqual(['2', '4', '7'])
@selection.set([@items[2], @items[5], @items[6]])
expect(@selection.ids()).toEqual(['2', '5', '6'])
it "should throw an exception if the items passed are not models", ->
expect( => @selection.set(['hi'])).toThrow()
it "should trigger", ->
@selection.set([@items[2], @items[4], @items[7]])
expect(@trigger).toHaveBeenCalled()
describe "clear", ->
beforeEach ->
@selection.set([@items[2]])
it "should empty the selection set", ->
@selection.clear()
expect(@selection.ids()).toEqual([])
it "should trigger", ->
@selection.clear()
expect(@trigger).toHaveBeenCalled()
describe "remove", ->
beforeEach ->
@selection.set([@items[2], @items[4], @items[7]])
it "should do nothing if called without a valid item", ->
@selection.remove(null)
@selection.remove(undefined)
@selection.remove(false)
expect(@selection.ids()).toEqual(['2', '4', '7'])
it "should remove the item from the set", ->
@selection.remove(@items[2])
expect(@selection.ids()).toEqual(['4', '7'])
it "should throw an exception if any item passed is not a model", ->
expect( => @selection.remove('hi')).toThrow()
it "should accept an array of models as well as a single item", ->
@selection.remove([@items[2], @items[4]])
expect(@selection.ids()).toEqual(['7'])
it "should trigger", ->
@selection.remove()
expect(@trigger).toHaveBeenCalled()
describe "_applyChangeRecord", ->
it "should replace items in the selection with the matching provided items, if present", ->
@selection.set([@items[2], @items[4], @items[7]])
expect(@selection.items()[0]).toBe(@items[2])
expect(@selection.items()[0].subject).toBe(undefined)
newItem2 = new Thread(id: '2', subject:'Hello world!')
@selection._applyChangeRecord({objectClass: 'Thread', objects: [newItem2], type: 'persist'})
expect(@selection.items()[0].subject).toBe('Hello world!')
it "should rremove items in the selection if type is unpersist", ->
@selection.set([@items[2], @items[4], @items[7]])
newItem2 = new Thread(id: '2', subject:'Hello world!')
@selection._applyChangeRecord({objectClass: 'Thread', objects: [newItem2], type: 'unpersist'})
expect(@selection.ids()).toEqual(['4', '7'])
describe "toggle", ->
beforeEach ->
@selection.set([@items[2]])
it "should do nothing if called without a valid item", ->
@selection.toggle(null)
@selection.toggle(undefined)
@selection.toggle(false)
expect(@selection.ids()).toEqual(['2'])
it "should throw an exception if the item passed is not a model", ->
expect( => @selection.toggle('hi')).toThrow()
it "should select the item if it is not selected", ->
@selection.toggle(@items[3])
expect(@selection.ids()).toEqual(['2', '3'])
it "should de-select the item if it is selected", ->
@selection.toggle(@items[2])
expect(@selection.ids()).toEqual([])
it "should trigger", ->
@selection.toggle(@items[2])
expect(@trigger).toHaveBeenCalled()
describe "expandTo", ->
it "should select the item, if no other items are selected", ->
@selection.clear()
@selection.expandTo(@items[2])
expect(@selection.ids()).toEqual(['2'])
it "should do nothing if called without a valid item", ->
@selection.expandTo(null)
@selection.expandTo(undefined)
@selection.expandTo(false)
expect(@selection.ids()).toEqual([])
it "should throw an exception if the item passed is not a model", ->
expect( => @selection.expandTo('hi')).toThrow()
it "should select all items from the last selected item to the provided item when the provided item is below the current selection", ->
@selection.set([@items[2], @items[5]])
@selection.expandTo(@items[8])
expect(@selection.ids()).toEqual(['2','5','6','7','8'])
it "should select all items from the last selected item to the provided item when the provided item is above the current selection", ->
@selection.set([@items[7], @items[5]])
@selection.expandTo(@items[2])
expect(@selection.ids()).toEqual(['7', '5', '4', '3', '2'])
it "should not do anything if the provided item is not in the view set", ->
@selection.set([@items[2]])
@selection.expandTo(new Thread(id:'not-in-view!'))
expect(@selection.ids()).toEqual(['2'])
it "should re-order items so that the order still reflects the order selection actions were taken", ->
@selection.set([@items[10], @items[4], @items[1]])
@selection.expandTo(@items[8])
expect(@selection.ids()).toEqual(['10','1','2','3','4','5','6','7','8'])
it "should trigger", ->
@selection.set([@items[5], @items[4], @items[1]])
@selection.expandTo(@items[8])
expect(@trigger).toHaveBeenCalled()
describe "walk", ->
beforeEach ->
@selection.set([@items[2]])
it "should trigger", ->
current = @items[4]
next = @items[5]
@selection.walk({current, next})
expect(@trigger).toHaveBeenCalled()
it "should select both items if neither the start row or the end row are selected", ->
current = @items[4]
next = @items[5]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['2', '4', '5'])
it "should select only one item if either current or next is null or undefined", ->
current = null
next = @items[5]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['2', '5'])
next = null
current = @items[7]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['2', '5', '7'])
describe "when the `next` item is a step backwards in the selection history", ->
it "should deselect the current item", ->
@selection.set([@items[2], @items[3], @items[4], @items[5]])
current = @items[5]
next = @items[4]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['2', '3', '4'])
describe "otherwise", ->
it "should select the next item", ->
@selection.set([@items[2], @items[3], @items[4], @items[5]])
current = @items[5]
next = @items[6]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['2', '3', '4', '5', '6'])
describe "if the item was already selected", ->
it "should re-order the selection array so the selection still represents selection history", ->
@selection.set([@items[5], @items[8], @items[7], @items[6]])
expect(@selection.ids()).toEqual(['5', '8', '7', '6'])
current = @items[6]
next = @items[5]
@selection.walk({current, next})
expect(@selection.ids()).toEqual(['8', '7', '6', '5'])