Simple-Notes/app/src/main/kotlin/com/simplemobiletools/notes/pro/fragments/TextFragment.kt

355 lines
12 KiB
Kotlin

package com.simplemobiletools.notes.pro.fragments
import android.annotation.SuppressLint
import android.content.Context
import android.graphics.Typeface
import android.os.Bundle
import android.text.Editable
import android.text.Selection
import android.text.TextWatcher
import android.text.style.UnderlineSpan
import android.text.util.Linkify
import android.util.TypedValue
import android.view.LayoutInflater
import android.view.MotionEvent
import android.view.View
import android.view.ViewGroup
import android.view.inputmethod.EditorInfo
import android.view.inputmethod.InputMethodManager
import android.widget.ImageView
import android.widget.TextView
import androidx.viewbinding.ViewBinding
import com.simplemobiletools.commons.extensions.*
import com.simplemobiletools.commons.views.MyEditText
import com.simplemobiletools.commons.views.MyTextView
import com.simplemobiletools.notes.pro.R
import com.simplemobiletools.notes.pro.activities.MainActivity
import com.simplemobiletools.notes.pro.databinding.FragmentTextBinding
import com.simplemobiletools.notes.pro.databinding.NoteViewHorizScrollableBinding
import com.simplemobiletools.notes.pro.databinding.NoteViewStaticBinding
import com.simplemobiletools.notes.pro.extensions.config
import com.simplemobiletools.notes.pro.extensions.getPercentageFontSize
import com.simplemobiletools.notes.pro.extensions.updateWidgets
import com.simplemobiletools.notes.pro.helpers.MyMovementMethod
import com.simplemobiletools.notes.pro.helpers.NOTE_ID
import com.simplemobiletools.notes.pro.helpers.NotesHelper
import com.simplemobiletools.notes.pro.models.TextHistory
import com.simplemobiletools.notes.pro.models.TextHistoryItem
import java.io.File
// text history handling taken from https://gist.github.com/zeleven/0cfa738c1e8b65b23ff7df1fc30c9f7e
class TextFragment : NoteFragment() {
private val TEXT = "text"
private var textHistory = TextHistory()
private var isUndoOrRedo = false
private var skipTextUpdating = false
private var noteId = 0L
private var touchDownX = 0f
private var moveXThreshold = 0 // make sure swiping across notes works well, do not swallow the gestures
private lateinit var binding: FragmentTextBinding
private lateinit var innerBinding: ViewBinding
private lateinit var noteEditText: MyEditText
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
binding = FragmentTextBinding.inflate(inflater, container, false)
noteId = requireArguments().getLong(NOTE_ID, 0L)
moveXThreshold = resources.getDimension(com.simplemobiletools.commons.R.dimen.activity_margin).toInt()
retainInstance = true
innerBinding = if (config!!.enableLineWrap) {
NoteViewStaticBinding.inflate(inflater, binding.notesRelativeLayout, true).apply {
noteEditText = textNoteView
}
} else {
NoteViewHorizScrollableBinding.inflate(inflater, binding.notesRelativeLayout, true).apply {
noteEditText = textNoteView
}
}
if (config!!.clickableLinks) {
noteEditText.apply {
linksClickable = true
autoLinkMask = Linkify.WEB_URLS or Linkify.EMAIL_ADDRESSES
movementMethod = MyMovementMethod.getInstance()
}
}
if (innerBinding is NoteViewHorizScrollableBinding) {
val casted = innerBinding as NoteViewHorizScrollableBinding
casted.notesHorizontalScrollview.onGlobalLayout {
casted.textNoteView.minWidth = casted.notesHorizontalScrollview.width
}
}
return binding.root
}
override fun onResume() {
super.onResume()
NotesHelper(requireActivity()).getNoteWithId(noteId) {
if (it != null) {
note = it
setupFragment()
}
}
}
override fun onPause() {
super.onPause()
if (config!!.autosaveNotes) {
saveText(false)
}
removeTextWatcher()
}
override fun setMenuVisibility(menuVisible: Boolean) {
super.setMenuVisibility(menuVisible)
if (!menuVisible && noteId != 0L && config?.autosaveNotes == true) {
saveText(false)
}
if (menuVisible && noteId != 0L) {
val currentText = getCurrentNoteViewText()
if (currentText != null) {
(activity as MainActivity).currentNoteTextChanged(currentText, isUndoAvailable(), isRedoAvailable())
}
}
}
override fun onSaveInstanceState(outState: Bundle) {
super.onSaveInstanceState(outState)
if (note != null) {
outState.putString(TEXT, getCurrentNoteViewText())
}
}
override fun onViewStateRestored(savedInstanceState: Bundle?) {
super.onViewStateRestored(savedInstanceState)
if (savedInstanceState != null && note != null && savedInstanceState.containsKey(TEXT)) {
skipTextUpdating = true
val newText = savedInstanceState.getString(TEXT) ?: ""
innerBinding.root.findViewById<TextView>(R.id.text_note_view).text = newText
}
}
@SuppressLint("ClickableViewAccessibility")
private fun setupFragment() {
val config = config ?: return
noteEditText.apply {
typeface = if (config.monospacedFont) Typeface.MONOSPACE else Typeface.DEFAULT
val fileContents = note!!.getNoteStoredValue(context)
if (fileContents == null) {
(activity as MainActivity).deleteNote(false, note!!)
return
}
val adjustedPrimaryColor = context.getProperPrimaryColor()
setColors(context.getProperTextColor(), adjustedPrimaryColor, context.getProperBackgroundColor())
setTextSize(TypedValue.COMPLEX_UNIT_PX, context.getPercentageFontSize())
highlightColor = adjustedPrimaryColor.adjustAlpha(.4f)
gravity = config.getTextGravity()
if (text.toString() != fileContents) {
if (!skipTextUpdating) {
removeTextWatcher()
setText(fileContents)
setTextWatcher()
}
skipTextUpdating = false
setSelection(if (config.placeCursorToEnd) text!!.length else 0)
}
if (config.showKeyboard && isMenuVisible && (!note!!.isLocked() || shouldShowLockedContent)) {
onGlobalLayout {
if (activity?.isDestroyed == false) {
requestFocus()
val inputManager = requireActivity().getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
inputManager.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
}
}
}
imeOptions = if (config.useIncognitoMode) {
imeOptions or EditorInfo.IME_FLAG_NO_PERSONALIZED_LEARNING
} else {
imeOptions.removeBit(EditorInfo.IME_FLAG_NO_PERSONALIZED_LEARNING)
}
}
noteEditText.setOnTouchListener { v, event ->
when (event.action) {
MotionEvent.ACTION_DOWN -> touchDownX = event.x
MotionEvent.ACTION_MOVE -> {
val diffX = Math.abs(event.x - touchDownX)
if (diffX > moveXThreshold) {
binding.root.requestDisallowInterceptTouchEvent(false)
}
}
}
false
}
if (config.showWordCount) {
binding.notesCounter.setTextColor(requireContext().getProperTextColor())
setWordCounter(noteEditText.text.toString())
}
checkLockState()
setTextWatcher()
}
fun setTextWatcher() {
noteEditText.apply {
removeTextChangedListener(textWatcher)
addTextChangedListener(textWatcher)
}
}
fun removeTextWatcher() = noteEditText.removeTextChangedListener(textWatcher)
override fun checkLockState() {
if (note == null) {
return
}
binding.apply {
notesCounter.beVisibleIf((!note!!.isLocked() || shouldShowLockedContent) && config!!.showWordCount)
notesScrollview.beVisibleIf(!note!!.isLocked() || shouldShowLockedContent)
setupLockedViews(this.toCommonBinding(), note!!)
}
}
fun getNotesView() = noteEditText
fun saveText(force: Boolean) {
if (note == null) {
return
}
if (note!!.path.isNotEmpty() && !note!!.path.startsWith("content://") && !File(note!!.path).exists()) {
return
}
if (context == null || activity == null) {
return
}
val newText = getCurrentNoteViewText()
val oldText = note!!.getNoteStoredValue(requireContext())
if (newText != null && (newText != oldText || force)) {
note!!.value = newText
saveNoteValue(note!!, newText)
requireContext().updateWidgets()
}
}
fun hasUnsavedChanges() = note != null && getCurrentNoteViewText() != note!!.getNoteStoredValue(requireContext())
fun focusEditText() {
noteEditText.requestFocus()
}
fun getCurrentNoteViewText() = noteEditText.text?.toString()
private fun setWordCounter(text: String) {
val words = text.replace("\n", " ").split(" ")
binding.notesCounter.text = words.count { it.isNotEmpty() }.toString()
}
fun undo() {
val edit = textHistory.getPrevious() ?: return
val text = noteEditText.editableText
val start = edit.start
val end = start + if (edit.after != null) edit.after.length else 0
isUndoOrRedo = true
try {
text.replace(start, end, edit.before)
} catch (e: Exception) {
activity?.showErrorToast(e)
return
}
isUndoOrRedo = false
for (span in text.getSpans(0, text.length, UnderlineSpan::class.java)) {
text.removeSpan(span)
}
Selection.setSelection(
text, if (edit.before == null) {
start
} else {
start + edit.before.length
}
)
}
fun redo() {
val edit = textHistory.getNext() ?: return
val text = noteEditText.editableText
val start = edit.start
val end = start + if (edit.before != null) edit.before.length else 0
isUndoOrRedo = true
text.replace(start, end, edit.after)
isUndoOrRedo = false
for (o in text.getSpans(0, text.length, UnderlineSpan::class.java)) {
text.removeSpan(o)
}
Selection.setSelection(
text, if (edit.after == null) {
start
} else {
start + edit.after.length
}
)
}
fun isUndoAvailable() = textHistory.position > 0
fun isRedoAvailable() = textHistory.position < textHistory.history.size
private var textWatcher: TextWatcher = object : TextWatcher {
private var beforeChange: CharSequence? = null
private var afterChange: CharSequence? = null
override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
if (!isUndoOrRedo) {
beforeChange = s.subSequence(start, start + count)
}
}
override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
if (!isUndoOrRedo) {
afterChange = s.subSequence(start, start + count)
textHistory.add(TextHistoryItem(start, beforeChange!!, afterChange!!))
}
}
override fun afterTextChanged(editable: Editable) {
val text = editable.toString()
setWordCounter(text)
(activity as MainActivity).currentNoteTextChanged(text, isUndoAvailable(), isRedoAvailable())
}
}
private fun FragmentTextBinding.toCommonBinding(): CommonNoteBinding = this.let {
object : CommonNoteBinding {
override val root: View = it.root
override val noteLockedLayout: View = it.noteLockedLayout
override val noteLockedImage: ImageView = it.noteLockedImage
override val noteLockedLabel: TextView = it.noteLockedLabel
override val noteLockedShow: TextView = it.noteLockedShow
}
}
}