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[RNMobile] Android Only - Fix Gboard enter detection in EnterPressedWatcher #32471

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Merged
AmandaRiu merged 5 commits into from
Jun 16, 2021
Merged

[RNMobile] Android Only - Fix Gboard enter detection in EnterPressedWatcher #32471

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b8aa541
Add logic to address Gboard's unusual invocation of TextWatcher methods
mkevins Mar 30, 2021
0516ff1
Revert "Add logic to address Gboard's unusual invocation of TextWatch…
mkevins Mar 31, 2021
9b49e3f
Search for newline in newTextCopy
mkevins Mar 31, 2021
1638c1c
Revert "Search for newline in newTextCopy"
mkevins Apr 7, 2021
f64da2b
Revert "Revert "Add logic to address Gboard's unusual invocation of T…
mkevins Apr 7, 2021
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32 changes: 28 additions & 4 deletions ...ztec/android/src/main/kotlin/org/wordpress/mobile/ReactNativeAztec/EnterPressedWatcher.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,9 @@ class EnterPressedWatcher(aztecText: AztecText, var enterDeleter: EnterDeleter)
private var selEnd: Int = 0
var done = false

private var gboardReplacement: CharSequence? = null


override fun beforeTextChanged(text: CharSequence, start: Int, count: Int, after: Int) {
val aztecText = aztecTextRef.get()
if (aztecText?.getAztecKeyListener() != null && !aztecText.isTextChangedListenerDisabled()) {
Expand All @@ -32,6 +35,13 @@ class EnterPressedWatcher(aztecText: AztecText, var enterDeleter: EnterDeleter)
this.start = start
this.selStart = aztecText.selectionStart
this.selEnd = aztecText.selectionEnd

if (selStart == selEnd && 0 < count && count < after) {
// possible gboard replacement detected
gboardReplacement = text.subSequence(start, start + count)
} else {
gboardReplacement = null
}
}
}

Expand All @@ -40,14 +50,25 @@ class EnterPressedWatcher(aztecText: AztecText, var enterDeleter: EnterDeleter)
val aztecKeyListener = aztecText?.getAztecKeyListener()
if (aztecText != null && !aztecText.isTextChangedListenerDisabled() && aztecKeyListener != null) {
val newTextCopy = SpannableStringBuilder(text)

var gboardOffset = this.start
// If gboard replacement is happening, we offset the start position by the length
// of the gboard replacement
if (gboardReplacement != null) {
val gboardRestored = newTextCopy.subSequence(start, start + before)
if (gboardRestored.toString() == gboardReplacement.toString()) {
gboardOffset += gboardRestored.length
}
}

// if new text length is longer than original text by 1
if (textBefore?.length == newTextCopy.length - 1) {
// now check that the inserted character is actually a NEWLINE
if (newTextCopy[this.start] == Constants.NEWLINE) {
if (newTextCopy[gboardOffset] == Constants.NEWLINE) {
done = false
aztecText.editableText.setSpan(EnterPressedUnderway(), 0, 0, Spanned.SPAN_USER)
aztecKeyListener.onEnterKey(
newTextCopy.replace(this.start, this.start + 1, ""),
newTextCopy.replace(gboardOffset, gboardOffset + 1, ""),
true,
selStart,
selEnd
Expand All @@ -61,9 +82,12 @@ class EnterPressedWatcher(aztecText: AztecText, var enterDeleter: EnterDeleter)
aztecTextRef.get()?.editableText?.getSpans(0, 0, EnterPressedUnderway::class.java)?.forEach {
if (!done) {
done = true
if (enterDeleter.shouldDeleteEnter())
text.replace(start, start + 1, "")
if (enterDeleter.shouldDeleteEnter()) {
var gboardOffset = start
gboardReplacement?.let { replacement -> gboardOffset += replacement.length }
text.replace(gboardOffset, gboardOffset + 1, "")
}
}
aztecTextRef.get()?.editableText?.removeSpan(it)
}
}
Expand Down