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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
package org.mozilla.tv.firefox.ui
import okhttp3.mockwebserver.MockWebServer
import org.junit.After
import org.junit.Assert.assertEquals
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.mozilla.tv.firefox.ext.toUri
import org.mozilla.tv.firefox.helpers.AndroidAssetDispatcher
import org.mozilla.tv.firefox.helpers.MainActivityTestRule
import org.mozilla.tv.firefox.ui.robots.BrowserRobot
import org.mozilla.tv.firefox.ui.robots.navigationOverlay
import org.mozilla.tv.firefox.webrender.FocusedDOMElementCacheInterface
/**
* Ensures that, if the EngineView loses and regains focus, the focused DOM element maintains focus.
* If the focused element changes, sites like YouTube TV may break. See
* [FocusedDOMElementCacheInterface] for additional details on why this is necessary.
*/
class DOMElementFocusTest {
@Rule @JvmField val activityTestRule = MainActivityTestRule()
private lateinit var mockWebServer: MockWebServer
@Before
fun setUp() {
mockWebServer = MockWebServer().apply {
setDispatcher(AndroidAssetDispatcher())
start()
}
}
@After
fun tearDown() {
mockWebServer.shutdown()
}
/* ktlint-disable no-blank-line-before-rbrace */ // This imposes unreadable grouping.
@Test
fun domElementFocusTest() {
val url = mockWebServer.url("pages/dom_element_focus_test.html").toString().toUri()!!
navigationOverlay { }.enterUrlAndEnterToBrowser(url) {
executeJS("document.querySelector('#input2').focus();")
assertFocusedElementId("input2")
// Opening and closing the overlay will move focus away and back to the EngineView.
}.openOverlay { }.closeToBrowser {
assertFocusedElementId("input2")
}
}
private fun BrowserRobot.assertFocusedElementId(expectedId: String) {
val focusedElementId = executeJS("return document.activeElement.id;")
assertEquals(expectedId, focusedElementId)
}
}