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[fenix] For https://github.com/mozilla-mobile/fenix/issues/26796 - Fix PocketStoriesComposablesPreview

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Noah Bond 2022-09-06 12:15:55 -07:00 committed by mergify[bot]
parent 88546d80f7
commit f83f448128
1 changed files with 35 additions and 30 deletions
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65
app/src/main/java/org/mozilla/fenix/home/pocket/PocketStoriesComposables.kt
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@ -67,6 +67,7 @@ import org.mozilla.fenix.compose.ListItemTabSurface
import org.mozilla.fenix.compose.SelectableChip
import org.mozilla.fenix.compose.StaggeredHorizontalGrid
import org.mozilla.fenix.compose.TabSubtitleWithInterdot
import org.mozilla.fenix.compose.inComposePreview
import org.mozilla.fenix.ext.settings
import org.mozilla.fenix.theme.FirefoxTheme
import org.mozilla.fenix.theme.Theme
@ -278,40 +279,44 @@ private fun Modifier.onShown(
var lastVisibleCoordinates: LayoutCoordinates? = null
return composed {
val context = LocalContext.current
var wasEventReported by remember { mutableStateOf(false) }
if (inComposePreview) {
Modifier
} else {
val context = LocalContext.current
var wasEventReported by remember { mutableStateOf(false) }
val toolbarHeight = context.resources.getDimensionPixelSize(R.dimen.browser_toolbar_height)
val isToolbarPlacedAtBottom = context.settings().shouldUseBottomToolbar
// Get a Rect of the entire screen minus system insets minus the toolbar
val screenBounds = Rect()
.apply { LocalView.current.getWindowVisibleDisplayFrame(this) }
.apply {
when (isToolbarPlacedAtBottom) {
true -> bottom -= toolbarHeight
false -> top += toolbarHeight
val toolbarHeight = context.resources.getDimensionPixelSize(R.dimen.browser_toolbar_height)
val isToolbarPlacedAtBottom = context.settings().shouldUseBottomToolbar
// Get a Rect of the entire screen minus system insets minus the toolbar
val screenBounds = Rect()
.apply { LocalView.current.getWindowVisibleDisplayFrame(this) }
.apply {
when (isToolbarPlacedAtBottom) {
true -> bottom -= toolbarHeight
false -> top += toolbarHeight
}
}
// In the event this composable starts as visible but then gets pushed offscreen
// before MINIMUM_TIME_TO_SETTLE_MS we will not report is as being visible.
// In the LaunchedEffect we add support for when the composable starts as visible and then
// it's position isn't changed after MINIMUM_TIME_TO_SETTLE_MS so it must be reported as visible.
LaunchedEffect(initialTime) {
delay(MINIMUM_TIME_TO_SETTLE_MS.toLong())
if (!wasEventReported && lastVisibleCoordinates?.isVisible(screenBounds, threshold) == true) {
wasEventReported = true
onVisible()
}
}
// In the event this composable starts as visible but then gets pushed offscreen
// before MINIMUM_TIME_TO_SETTLE_MS we will not report is as being visible.
// In the LaunchedEffect we add support for when the composable starts as visible and then
// it's position isn't changed after MINIMUM_TIME_TO_SETTLE_MS so it must be reported as visible.
LaunchedEffect(initialTime) {
delay(MINIMUM_TIME_TO_SETTLE_MS.toLong())
if (!wasEventReported && lastVisibleCoordinates?.isVisible(screenBounds, threshold) == true) {
wasEventReported = true
onVisible()
}
}
onGloballyPositioned { coordinates ->
if (!wasEventReported && coordinates.isVisible(screenBounds, threshold)) {
if (System.currentTimeMillis() - initialTime > MINIMUM_TIME_TO_SETTLE_MS) {
wasEventReported = true
onVisible()
} else {
lastVisibleCoordinates = coordinates
onGloballyPositioned { coordinates ->
if (!wasEventReported && coordinates.isVisible(screenBounds, threshold)) {
if (System.currentTimeMillis() - initialTime > MINIMUM_TIME_TO_SETTLE_MS) {
wasEventReported = true
onVisible()
} else {
lastVisibleCoordinates = coordinates
}
}
}
}