feat/add-drag-drop : Add Drag & Drop Functionality

app/src/main/java/com/example/cahier/MainActivity.kt

@@ -48,7 +48,8 @@ class MainActivity : ComponentActivity() {
         setContent {
             CahierAppTheme {
                 Surface(
-                    modifier = Modifier.fillMaxSize(),
+                    modifier = Modifier
+                        .fillMaxSize(),
                     color = MaterialTheme.colorScheme.background
                 ) {
                     CahierApp(noteId = noteId, noteType = noteType)

app/src/main/java/com/example/cahier/core/utils/DragAndDropUtils.kt

@@ -18,13 +18,26 @@
 
 package com.example.cahier.core.utils
 
+import android.app.Activity
+import android.app.PendingIntent
+import android.content.ClipData
+import android.content.ClipDescription
+import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.view.DragAndDropPermissions
+import android.view.View
 import androidx.activity.ComponentActivity
+import androidx.annotation.RequiresApi
 import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.draganddrop.dragAndDropSource
+import androidx.compose.ui.Modifier
 import androidx.compose.ui.draganddrop.DragAndDropEvent
 import androidx.compose.ui.draganddrop.DragAndDropTarget
+import androidx.compose.ui.draganddrop.DragAndDropTransferData
 import androidx.compose.ui.draganddrop.toAndroidDragEvent
+import com.example.cahier.AppArgs
+import com.example.cahier.core.data.Note
 
 @OptIn(ExperimentalFoundationApi::class)
 fun createDropTarget(
@@ -43,3 +56,38 @@ fun createDropTarget(
         }
     }
 }
+
+fun Modifier.createDragAndDropSource(
+    activity: Activity?,
+    note: Note
+): Modifier = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
+    dragAndDropSource { _ ->
+        activity?.let {
+            DragAndDropTransferData(
+                clipData = getClipData(it, note),
+                flags = View.DRAG_FLAG_GLOBAL_SAME_APPLICATION or View.DRAG_FLAG_START_INTENT_SENDER_ON_UNHANDLED_DRAG,
+            )
+        }
+    }
+} else {
+    this
+}
+
+@RequiresApi(Build.VERSION_CODES.VANILLA_ICE_CREAM)
+fun getClipData(activity: Activity, note: Note): ClipData {
+    val componentName = activity.componentName
+    val intent = Intent.makeMainActivity(componentName).apply {
+        putExtra(AppArgs.NOTE_ID_KEY, note.id)
+        putExtra(AppArgs.NOTE_TYPE_KEY, note.type)
+        flags = Intent.FLAG_ACTIVITY_NEW_TASK or
+                Intent.FLAG_ACTIVITY_MULTIPLE_TASK or
+                Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT
+    }
+    val pendingIntent = PendingIntent.getActivity(
+        activity, 0, intent, PendingIntent.FLAG_IMMUTABLE
+    )
+    return ClipData(
+        AppArgs.NOTE_ID_KEY, arrayOf(ClipDescription.MIMETYPE_TEXT_INTENT),
+        ClipData.Item.Builder().setIntentSender(pendingIntent.intentSender).build()
+    )
+}

app/src/main/java/com/example/cahier/features/home/HomeScreenComponents.kt

@@ -18,6 +18,7 @@
 
 package com.example.cahier.features.home
 
+import androidx.activity.compose.LocalActivity
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -75,6 +76,7 @@ import com.example.cahier.R
 import com.example.cahier.core.data.Note
 import com.example.cahier.core.data.NoteType
 import com.example.cahier.core.ui.theme.CahierAppTheme
+import com.example.cahier.core.utils.createDragAndDropSource
 import com.example.cahier.features.drawing.DrawingDetailThumbnail
 
 @Composable
@@ -203,17 +205,20 @@ fun NoteItem(
     modifier: Modifier = Modifier
 ) {
     OutlinedCard(
+        onClick = onClick,
         elevation = CardDefaults.cardElevation(defaultElevation = 2.dp),
         colors = CardDefaults.cardColors(
             containerColor = if (isSelected) MaterialTheme.colorScheme.primaryContainer
             else MaterialTheme.colorScheme.surfaceContainerLow
         ),
-        modifier = modifier
-            .fillMaxWidth()
-            .clip(CardDefaults.outlinedShape)
-            .clickable { onClick() }
+        modifier = modifier.fillMaxWidth()
     ) {
-        NoteItemContent(note)
+        NoteItemContent(
+            note = note,
+            modifier = Modifier
+                .fillMaxWidth()
+                .createDragAndDropSource(LocalActivity.current, note)
+        )
         NoteItemActions(onToggleFavorite, note, onDelete, onNewWindow, isCompact)
     }
 }