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describe('hx-on:* attribute', function() {
beforeEach(function() {
this.server = makeServer()
clearWorkArea()
})
afterEach(function() {
this.server.restore()
clearWorkArea()
})
it('can handle basic events w/ no other attributes', function() {
var btn = make("<button hx-on:click='window.foo = true'>Foo</button>")
btn.click()
window.foo.should.equal(true)
delete window.foo
})
it('can use dashes rather than colons', function() {
var btn = make("<button hx-on-click='window.foo = true'>Foo</button>")
btn.click()
window.foo.should.equal(true)
delete window.foo
})
it('can modify a parameter via htmx:configRequest', function() {
this.server.respondWith('POST', '/test', function(xhr) {
var params = parseParams(xhr.requestBody)
xhr.respond(200, {}, params.foo)
})
var btn = make("<button hx-on:htmx:config-request='event.detail.parameters.foo = \"bar\"' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('bar')
})
it('can modify a parameter via htmx:configRequest with dashes', function() {
this.server.respondWith('POST', '/test', function(xhr) {
var params = parseParams(xhr.requestBody)
xhr.respond(200, {}, params.foo)
})
var btn = make("<button hx-on-htmx-config-request='event.detail.parameters.foo = \"bar\"' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('bar')
})
it('expands :: shorthand into htmx:', function() {
this.server.respondWith('POST', '/test', function(xhr) {
var params = parseParams(xhr.requestBody)
xhr.respond(200, {}, params.foo)
})
var btn = make("<button hx-on::config-request='event.detail.parameters.foo = \"bar\"' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('bar')
})
it('expands -- shorthand into htmx:', function() {
this.server.respondWith('POST', '/test', function(xhr) {
var params = parseParams(xhr.requestBody)
xhr.respond(200, {}, params.foo)
})
var btn = make("<button hx-on--config-request='event.detail.parameters.foo = \"bar\"' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('bar')
})
it('can cancel an event via preventDefault for htmx:config-request', function() {
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, '<button>Bar</button>')
})
var btn = make("<button hx-on:htmx:config-request='event.preventDefault()' hx-post='/test' hx-swap='outerHTML'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('Foo')
})
it('can respond to data-hx-on', function() {
this.server.respondWith('POST', '/test', function(xhr) {
var params = parseParams(xhr.requestBody)
xhr.respond(200, {}, params.foo)
})
var btn = make("<button data-hx-on:htmx:config-request='event.detail.parameters.foo = \"bar\"' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('bar')
})
it('has the this symbol set to the element', function() {
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, 'foo')
})
var btn = make("<button hx-on:htmx:config-request='window.elt = this' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('foo')
btn.should.equal(window.elt)
delete window.elt
})
it('can handle multi-line JSON', function() {
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, 'foo')
})
var btn = make("<button hx-on:htmx:config-request='window.elt = {foo: true,\n" +
" bar: false}' hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('foo')
var obj = { foo: true, bar: false }
obj.should.deep.equal(window.elt)
delete window.elt
})
it('can handle multiple event handlers in the presence of multi-line JSON', function() {
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, 'foo')
})
var btn = make("<button hx-on:htmx:config-request='window.elt = {foo: true,\n" +
" bar: false}\n'" +
" hx-on:htmx:after-request='window.foo = true'" +
" hx-post='/test'>Foo</button>")
btn.click()
this.server.respond()
btn.innerText.should.equal('foo')
var obj = { foo: true, bar: false }
obj.should.deep.equal(window.elt)
delete window.elt
window.foo.should.equal(true)
delete window.foo
})
it('de-initializes hx-on-* content properly', function() {
window.tempCount = 0
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, "<button id='foo' hx-on:click=\"window.tempCount++;\">increment</button>")
})
var div = make("<div hx-post='/test'>Foo</div>")
// get response
div.click()
this.server.respond()
// click button
byId('foo').click()
window.tempCount.should.equal(1)
// get second response
div.click()
this.server.respond()
// click button again
byId('foo').click()
window.tempCount.should.equal(2)
delete window.tempCount
})
it('is not evaluated when allowEval is false', function() {
var calledEvent = false
var handler = htmx.on('htmx:evalDisallowedError', function() {
calledEvent = true
})
htmx.config.allowEval = false
try {
var btn = make("<button hx-on:click='window.foo = true'>Foo</button>")
btn.click()
should.not.exist(window.foo)
} finally {
htmx.config.allowEval = true
htmx.off('htmx:evalDisallowedError', handler)
delete window.foo
}
calledEvent.should.equal(true)
})
it('can handle being swapped using innerHTML', function() {
this.server.respondWith('GET', '/test', function(xhr) {
xhr.respond(200, {}, '<button id="bar" hx-on:click="window.bar = true">Bar</button>')
})
make(
'<div>' +
'<button id="swap" hx-get="/test" hx-target="#baz" hx-swap="innerHTML">Swap</button>' +
'<div id="baz"><button id="foo" hx-on:click="window.foo = true">Foo</button></div>' +
'</div>'
)
var fooBtn = byId('foo')
fooBtn.click()
window.foo.should.equal(true)
var swapBtn = byId('swap')
swapBtn.click()
this.server.respond()
var barBtn = byId('bar')
barBtn.click()
window.bar.should.equal(true)
delete window.foo
delete window.bar
})
it('cleans up all handlers when the DOM updates', function() {
// setup
window.foo = 0
window.bar = 0
var div = make("<div hx-on:increment-foo='window.foo++' hx-on:increment-bar='window.bar++'>Foo</div>")
make('<div>Another Div</div>') // sole purpose is to update the DOM
// check there is just one handler against each event
htmx.trigger(div, 'increment-foo')
htmx.trigger(div, 'increment-bar')
window.foo.should.equal(1)
window.bar.should.equal(1)
// teardown
delete window.foo
delete window.bar
})
})
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