From 2951cc0eb75554b24133bb7f9732c47cc98bb962 Mon Sep 17 00:00:00 2001
From: Adam Brown <adamwbrown@gmail.com>
Date: Sat, 16 Nov 2024 16:02:16 -0800
Subject: [PATCH] Added textChanges SharedFlow to follow text changes

cleanup
---
 .../richeditor/model/RichTextState.kt            | 13 +++++++++++++
 .../common/richeditor/RichEditorContent.kt       | 16 ++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/richeditor-compose/src/commonMain/kotlin/com/mohamedrejeb/richeditor/model/RichTextState.kt b/richeditor-compose/src/commonMain/kotlin/com/mohamedrejeb/richeditor/model/RichTextState.kt
index 5dc5e0f4..e43fecc0 100644
--- a/richeditor-compose/src/commonMain/kotlin/com/mohamedrejeb/richeditor/model/RichTextState.kt
+++ b/richeditor-compose/src/commonMain/kotlin/com/mohamedrejeb/richeditor/model/RichTextState.kt
@@ -26,6 +26,7 @@ import com.mohamedrejeb.richeditor.parser.html.RichTextStateHtmlParser
 import com.mohamedrejeb.richeditor.parser.markdown.RichTextStateMarkdownParser
 import com.mohamedrejeb.richeditor.utils.*
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.channels.*
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.*
@@ -54,6 +55,16 @@ public class RichTextState internal constructor(
     internal val inlineContentMap = mutableStateMapOf<String, InlineTextContent>()
     internal val usedInlineContentMapKeys = mutableSetOf<String>()
 
+    private val _textChanges = MutableSharedFlow<RichTextState>(
+        extraBufferCapacity = 1,
+        onBufferOverflow = BufferOverflow.DROP_OLDEST
+    )
+    public val textChanges: SharedFlow<RichTextState> = _textChanges
+
+    private fun emitTextChange() {
+        _textChanges.tryEmit(this)
+    }
+
     /**
      * The annotated string representing the rich text.
      */
@@ -1137,6 +1148,8 @@ public class RichTextState internal constructor(
 
         // Update text field value
         updateTextFieldValue()
+
+        emitTextChange()
     }
 
     /**
diff --git a/sample/common/src/commonMain/kotlin/com/mohamedrejeb/richeditor/sample/common/richeditor/RichEditorContent.kt b/sample/common/src/commonMain/kotlin/com/mohamedrejeb/richeditor/sample/common/richeditor/RichEditorContent.kt
index 4bf028eb..49442d0d 100644
--- a/sample/common/src/commonMain/kotlin/com/mohamedrejeb/richeditor/sample/common/richeditor/RichEditorContent.kt
+++ b/sample/common/src/commonMain/kotlin/com/mohamedrejeb/richeditor/sample/common/richeditor/RichEditorContent.kt
@@ -5,8 +5,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material3.*
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import cafe.adriel.voyager.navigator.LocalNavigator
@@ -18,6 +17,7 @@ import com.mohamedrejeb.richeditor.ui.BasicRichTextEditor
 import com.mohamedrejeb.richeditor.ui.material3.OutlinedRichTextEditor
 import com.mohamedrejeb.richeditor.ui.material3.RichText
 import com.mohamedrejeb.richeditor.ui.material3.RichTextEditor
+import kotlinx.coroutines.*
 
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
 @Composable
@@ -27,6 +27,18 @@ fun RichEditorContent() {
     val basicRichTextState = rememberRichTextState()
     val richTextState = rememberRichTextState()
     val outlinedRichTextState = rememberRichTextState()
+    val scope = rememberCoroutineScope()
+
+    LaunchedEffect(Unit) {
+        scope.launch {
+            println("Start collecting...")
+            outlinedRichTextState.textChanges.collect { state ->
+                println("Text changed!")
+                println(state.toText())
+            }
+            println("Collection finished!")
+        }
+    }
 
     LaunchedEffect(Unit) {
         richTextState.setHtml(