mirror of
https://github.com/pulsar-edit/pulsar.git
synced 2024-11-10 10:17:11 +03:00
229 lines
9.4 KiB
CoffeeScript
229 lines
9.4 KiB
CoffeeScript
CommandRegistry = require '../src/command-registry'
|
|
_ = require 'underscore-plus'
|
|
|
|
describe "CommandRegistry", ->
|
|
[registry, parent, child, grandchild] = []
|
|
|
|
beforeEach ->
|
|
parent = document.createElement("div")
|
|
child = document.createElement("div")
|
|
grandchild = document.createElement("div")
|
|
parent.classList.add('parent')
|
|
child.classList.add('child')
|
|
grandchild.classList.add('grandchild')
|
|
child.appendChild(grandchild)
|
|
parent.appendChild(child)
|
|
document.querySelector('#jasmine-content').appendChild(parent)
|
|
|
|
registry = new CommandRegistry
|
|
|
|
afterEach ->
|
|
registry.destroy()
|
|
|
|
describe "when a command event is dispatched on an element", ->
|
|
it "invokes callbacks with selectors matching the target", ->
|
|
called = false
|
|
registry.add '.grandchild', 'command', (event) ->
|
|
expect(this).toBe grandchild
|
|
expect(event.type).toBe 'command'
|
|
expect(event.eventPhase).toBe Event.BUBBLING_PHASE
|
|
expect(event.target).toBe grandchild
|
|
expect(event.currentTarget).toBe grandchild
|
|
called = true
|
|
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(called).toBe true
|
|
|
|
it "invokes callbacks with selectors matching ancestors of the target", ->
|
|
calls = []
|
|
|
|
registry.add '.child', 'command', (event) ->
|
|
expect(this).toBe child
|
|
expect(event.target).toBe grandchild
|
|
expect(event.currentTarget).toBe child
|
|
calls.push('child')
|
|
|
|
registry.add '.parent', 'command', (event) ->
|
|
expect(this).toBe parent
|
|
expect(event.target).toBe grandchild
|
|
expect(event.currentTarget).toBe parent
|
|
calls.push('parent')
|
|
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(calls).toEqual ['child', 'parent']
|
|
|
|
it "invokes inline listeners prior to listeners applied via selectors", ->
|
|
calls = []
|
|
registry.add '.grandchild', 'command', -> calls.push('grandchild')
|
|
registry.add child, 'command', -> calls.push('child-inline')
|
|
registry.add '.child', 'command', -> calls.push('child')
|
|
registry.add '.parent', 'command', -> calls.push('parent')
|
|
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(calls).toEqual ['grandchild', 'child-inline', 'child', 'parent']
|
|
|
|
it "orders multiple matching listeners for an element by selector specificity", ->
|
|
child.classList.add('foo', 'bar')
|
|
calls = []
|
|
|
|
registry.add '.foo.bar', 'command', -> calls.push('.foo.bar')
|
|
registry.add '.foo', 'command', -> calls.push('.foo')
|
|
registry.add '.bar', 'command', -> calls.push('.bar') # specificity ties favor commands added later, like CSS
|
|
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(calls).toEqual ['.foo.bar', '.bar', '.foo']
|
|
|
|
it "stops bubbling through ancestors when .stopPropagation() is called on the event", ->
|
|
calls = []
|
|
|
|
registry.add '.parent', 'command', -> calls.push('parent')
|
|
registry.add '.child', 'command', -> calls.push('child-2')
|
|
registry.add '.child', 'command', (event) -> calls.push('child-1'); event.stopPropagation()
|
|
|
|
dispatchedEvent = new CustomEvent('command', bubbles: true)
|
|
spyOn(dispatchedEvent, 'stopPropagation')
|
|
grandchild.dispatchEvent(dispatchedEvent)
|
|
expect(calls).toEqual ['child-1', 'child-2']
|
|
expect(dispatchedEvent.stopPropagation).toHaveBeenCalled()
|
|
|
|
it "stops invoking callbacks when .stopImmediatePropagation() is called on the event", ->
|
|
calls = []
|
|
|
|
registry.add '.parent', 'command', -> calls.push('parent')
|
|
registry.add '.child', 'command', -> calls.push('child-2')
|
|
registry.add '.child', 'command', (event) -> calls.push('child-1'); event.stopImmediatePropagation()
|
|
|
|
dispatchedEvent = new CustomEvent('command', bubbles: true)
|
|
spyOn(dispatchedEvent, 'stopImmediatePropagation')
|
|
grandchild.dispatchEvent(dispatchedEvent)
|
|
expect(calls).toEqual ['child-1']
|
|
expect(dispatchedEvent.stopImmediatePropagation).toHaveBeenCalled()
|
|
|
|
it "forwards .preventDefault() calls from the synthetic event to the original", ->
|
|
registry.add '.child', 'command', (event) -> event.preventDefault()
|
|
|
|
dispatchedEvent = new CustomEvent('command', bubbles: true)
|
|
spyOn(dispatchedEvent, 'preventDefault')
|
|
grandchild.dispatchEvent(dispatchedEvent)
|
|
expect(dispatchedEvent.preventDefault).toHaveBeenCalled()
|
|
|
|
it "forwards .abortKeyBinding() calls from the synthetic event to the original", ->
|
|
registry.add '.child', 'command', (event) -> event.abortKeyBinding()
|
|
|
|
dispatchedEvent = new CustomEvent('command', bubbles: true)
|
|
dispatchedEvent.abortKeyBinding = jasmine.createSpy('abortKeyBinding')
|
|
grandchild.dispatchEvent(dispatchedEvent)
|
|
expect(dispatchedEvent.abortKeyBinding).toHaveBeenCalled()
|
|
|
|
it "allows listeners to be removed via a disposable returned by ::add", ->
|
|
calls = []
|
|
|
|
disposable1 = registry.add '.parent', 'command', -> calls.push('parent')
|
|
disposable2 = registry.add '.child', 'command', -> calls.push('child')
|
|
|
|
disposable1.dispose()
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(calls).toEqual ['child']
|
|
|
|
calls = []
|
|
disposable2.dispose()
|
|
grandchild.dispatchEvent(new CustomEvent('command', bubbles: true))
|
|
expect(calls).toEqual []
|
|
|
|
it "allows multiple commands to be registered under one selector when called with an object", ->
|
|
calls = []
|
|
|
|
disposable = registry.add '.child',
|
|
'command-1': -> calls.push('command-1')
|
|
'command-2': -> calls.push('command-2')
|
|
|
|
grandchild.dispatchEvent(new CustomEvent('command-1', bubbles: true))
|
|
grandchild.dispatchEvent(new CustomEvent('command-2', bubbles: true))
|
|
|
|
expect(calls).toEqual ['command-1', 'command-2']
|
|
|
|
calls = []
|
|
disposable.dispose()
|
|
grandchild.dispatchEvent(new CustomEvent('command-1', bubbles: true))
|
|
grandchild.dispatchEvent(new CustomEvent('command-2', bubbles: true))
|
|
expect(calls).toEqual []
|
|
|
|
describe "::add(selector, commandName, callback)", ->
|
|
it "throws an error when called with an invalid selector", ->
|
|
badSelector = '<>'
|
|
addError = null
|
|
try
|
|
registry.add badSelector, 'foo:bar', ->
|
|
catch error
|
|
addError = error
|
|
expect(addError.message).toContain(badSelector)
|
|
|
|
describe "::findCommands({target})", ->
|
|
it "returns commands that can be invoked on the target or its ancestors", ->
|
|
registry.add '.parent', 'namespace:command-1', ->
|
|
registry.add '.child', 'namespace:command-2', ->
|
|
registry.add '.grandchild', 'namespace:command-3', ->
|
|
registry.add '.grandchild.no-match', 'namespace:command-4', ->
|
|
|
|
registry.add grandchild, 'namespace:inline-command-1', ->
|
|
registry.add child, 'namespace:inline-command-2', ->
|
|
|
|
commands = registry.findCommands(target: grandchild)
|
|
nonJqueryCommands = _.reject commands, (cmd) -> cmd.jQuery
|
|
expect(nonJqueryCommands).toEqual [
|
|
{name: 'namespace:inline-command-1', displayName: 'Namespace: Inline Command 1'}
|
|
{name: 'namespace:command-3', displayName: 'Namespace: Command 3'}
|
|
{name: 'namespace:inline-command-2', displayName: 'Namespace: Inline Command 2'}
|
|
{name: 'namespace:command-2', displayName: 'Namespace: Command 2'}
|
|
{name: 'namespace:command-1', displayName: 'Namespace: Command 1'}
|
|
]
|
|
|
|
describe "::dispatch(target, commandName)", ->
|
|
it "simulates invocation of the given command ", ->
|
|
called = false
|
|
registry.add '.grandchild', 'command', (event) ->
|
|
expect(this).toBe grandchild
|
|
expect(event.type).toBe 'command'
|
|
expect(event.eventPhase).toBe Event.BUBBLING_PHASE
|
|
expect(event.target).toBe grandchild
|
|
expect(event.currentTarget).toBe grandchild
|
|
called = true
|
|
|
|
registry.dispatch(grandchild, 'command')
|
|
expect(called).toBe true
|
|
|
|
it "returns a boolean indicating whether any listeners matched the command", ->
|
|
registry.add '.grandchild', 'command', ->
|
|
|
|
expect(registry.dispatch(grandchild, 'command')).toBe true
|
|
expect(registry.dispatch(grandchild, 'bogus')).toBe false
|
|
expect(registry.dispatch(parent, 'command')).toBe false
|
|
|
|
describe "::getSnapshot and ::restoreSnapshot", ->
|
|
it "removes all command handlers except for those in the snapshot", ->
|
|
registry.add '.parent', 'namespace:command-1', ->
|
|
registry.add '.child', 'namespace:command-2', ->
|
|
snapshot = registry.getSnapshot()
|
|
registry.add '.grandchild', 'namespace:command-3', ->
|
|
|
|
expect(registry.findCommands(target: grandchild)[0..2]).toEqual [
|
|
{name: 'namespace:command-3', displayName: 'Namespace: Command 3'}
|
|
{name: 'namespace:command-2', displayName: 'Namespace: Command 2'}
|
|
{name: 'namespace:command-1', displayName: 'Namespace: Command 1'}
|
|
]
|
|
|
|
registry.restoreSnapshot(snapshot)
|
|
|
|
expect(registry.findCommands(target: grandchild)[0..1]).toEqual [
|
|
{name: 'namespace:command-2', displayName: 'Namespace: Command 2'}
|
|
{name: 'namespace:command-1', displayName: 'Namespace: Command 1'}
|
|
]
|
|
|
|
registry.add '.grandchild', 'namespace:command-3', ->
|
|
registry.restoreSnapshot(snapshot)
|
|
|
|
expect(registry.findCommands(target: grandchild)[0..1]).toEqual [
|
|
{name: 'namespace:command-2', displayName: 'Namespace: Command 2'}
|
|
{name: 'namespace:command-1', displayName: 'Namespace: Command 1'}
|
|
]
|