Inserts uploaded URLs where the cursor is and not at the end of the file.

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewPostViewModel.kt

@@ -36,6 +36,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.fonfon.kgeohash.toGeoHash
 import com.vitorpamplona.amethyst.commons.RichTextParser
+import com.vitorpamplona.amethyst.commons.insertUrlAtCursor
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
@@ -736,10 +737,7 @@ open class NewPostViewModel() : ViewModel() {
                     isUploadingImage = false
                     nip94attachments = nip94attachments + event
 
-                    message =
+                    message = message.insertUrlAtCursor(imageUrl)
-                        TextFieldValue(
-                            message.text + "\n" + imageUrl,
-                        )
                     urlPreview = findUrlInMessage()
                 }
             },
@@ -776,7 +774,9 @@ open class NewPostViewModel() : ViewModel() {
 
                         isUploadingImage = false
 
-                        note?.let { message = TextFieldValue(message.text + "\nnostr:" + it.toNEvent()) }
+                        note?.let {
+                            message = message.insertUrlAtCursor("nostr:" + it.toNEvent())
+                        }
 
                         urlPreview = findUrlInMessage()
                     }

app/src/main/java/com/vitorpamplona/amethyst/ui/note/BlankNote.kt

@@ -29,6 +29,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Divider
+import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -74,7 +75,7 @@ fun BlankNote(
                 }
 
                 if (!showDivider) {
-                    Divider(
+                    HorizontalDivider(
                         modifier = Modifier.padding(vertical = 10.dp),
                         thickness = DividerThickness,
                     )

commons/src/androidTest/java/com/vitorpamplona/amethyst/commons/TextFieldValueExtensionTest.kt

@@ -0,0 +1,121 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons
+
+import androidx.compose.ui.text.TextRange
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import junit.framework.TestCase.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class TextFieldValueExtensionTest {
+    @Test
+    fun testInsertTwoCharsStart() {
+        val current = TextFieldValue("ab", selection = TextRange(0, 0))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("http://a.b ab", next.text)
+        assertEquals(TextRange(10, 10), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsMiddle() {
+        val current = TextFieldValue("ab", selection = TextRange(1, 1))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsEnd() {
+        val current = TextFieldValue("ab", selection = TextRange(2, 2))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("ab http://a.b", next.text)
+        assertEquals(TextRange(13, 13), next.selection)
+    }
+
+    @Test
+    fun testInsertOneCharStart() {
+        val current = TextFieldValue("a", selection = TextRange(0, 0))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("http://a.b a", next.text)
+        assertEquals(TextRange(10, 10), next.selection)
+    }
+
+    @Test
+    fun testInsertOneCharEnd() {
+        val current = TextFieldValue("a", selection = TextRange(1, 1))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsWithSpaceStart() {
+        val current = TextFieldValue("a b", selection = TextRange(1, 1))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsWithSpaceEnd() {
+        val current = TextFieldValue("a b", selection = TextRange(2, 2))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsWithThreeSpaceStart() {
+        val current = TextFieldValue("a  b", selection = TextRange(1, 1))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b  b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsWithThreeSpaceMiddle() {
+        val current = TextFieldValue("a  b", selection = TextRange(2, 2))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a http://a.b b", next.text)
+        assertEquals(TextRange(12, 12), next.selection)
+    }
+
+    @Test
+    fun testInsertTwoCharsWithThreeSpaceEnd() {
+        val current = TextFieldValue("a  b", selection = TextRange(3, 3))
+        val next = current.insertUrlAtCursor("http://a.b")
+
+        assertEquals("a  http://a.b b", next.text)
+        assertEquals(TextRange(13, 13), next.selection)
+    }
+}

commons/src/main/java/com/vitorpamplona/amethyst/commons/TextFieldValueExtensions.kt

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons
+
+import androidx.compose.ui.text.TextRange
+import androidx.compose.ui.text.input.TextFieldValue
+
+fun TextFieldValue.insertUrlAtCursor(url: String): TextFieldValue {
+    var toInsert = url
+    if (selection.start > 0 && text[selection.start - 1] != ' ') {
+        toInsert = " $toInsert"
+    }
+
+    // takes the position before adding an empty char after the url
+    val endOfUrlIndex = selection.start + toInsert.length
+
+    if (selection.end < text.length && text[selection.end] != ' ') {
+        toInsert = "$toInsert "
+    }
+
+    return TextFieldValue(
+        text.replaceRange(selection.start, selection.end, toInsert),
+        TextRange(endOfUrlIndex, endOfUrlIndex),
+    )
+}