Refactor AddSendViewModel to support loading and error states. (#524)

app/src/main/java/com/x8bit/bitwarden/ui/tools/feature/send/addsend/AddSendContent.kt

@@ -0,0 +1,281 @@
+package com.x8bit.bitwarden.ui.tools.feature.send.addsend
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.slideInVertically
+import androidx.compose.animation.slideOutVertically
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clipToBounds
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.unit.dp
+import com.x8bit.bitwarden.R
+import com.x8bit.bitwarden.ui.platform.components.BitwardenFilledTonalButton
+import com.x8bit.bitwarden.ui.platform.components.BitwardenListHeaderText
+import com.x8bit.bitwarden.ui.platform.components.BitwardenPasswordField
+import com.x8bit.bitwarden.ui.platform.components.BitwardenSegmentedButton
+import com.x8bit.bitwarden.ui.platform.components.BitwardenStepper
+import com.x8bit.bitwarden.ui.platform.components.BitwardenTextField
+import com.x8bit.bitwarden.ui.platform.components.BitwardenWideSwitch
+import com.x8bit.bitwarden.ui.platform.components.SegmentedButtonState
+import com.x8bit.bitwarden.ui.tools.feature.send.SendDeletionDateChooser
+import com.x8bit.bitwarden.ui.tools.feature.send.SendExpirationDateChooser
+import com.x8bit.bitwarden.ui.tools.feature.send.addsend.handlers.AddSendHandlers
+
+/**
+ * Content view for the [AddSendScreen].
+ */
+@Suppress("LongMethod")
+@Composable
+fun AddSendContent(
+    state: AddSendState.ViewState.Content,
+    addSendHandlers: AddSendHandlers,
+    modifier: Modifier = Modifier,
+) {
+    Column(
+        modifier = modifier
+            .verticalScroll(rememberScrollState()),
+    ) {
+        BitwardenTextField(
+            modifier = Modifier.padding(horizontal = 16.dp),
+            label = stringResource(id = R.string.name),
+            hint = stringResource(id = R.string.name_info),
+            value = state.common.name,
+            onValueChange = addSendHandlers.onNamChange,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+        BitwardenListHeaderText(
+            label = stringResource(id = R.string.type),
+            modifier = Modifier.padding(horizontal = 16.dp),
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+        BitwardenSegmentedButton(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 16.dp),
+            options = listOf(
+                SegmentedButtonState(
+                    text = stringResource(id = R.string.file),
+                    onClick = addSendHandlers.onFileTypeSelect,
+                    isChecked = state.selectedType is AddSendState.ViewState.Content.SendType.File,
+                ),
+                SegmentedButtonState(
+                    text = stringResource(id = R.string.text),
+                    onClick = addSendHandlers.onTextTypeSelect,
+                    isChecked = state.selectedType is AddSendState.ViewState.Content.SendType.Text,
+                ),
+            ),
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+        when (val type = state.selectedType) {
+            is AddSendState.ViewState.Content.SendType.File -> {
+                BitwardenListHeaderText(
+                    label = stringResource(id = R.string.file),
+                    modifier = Modifier.padding(horizontal = 16.dp),
+                )
+                Spacer(modifier = Modifier.height(16.dp))
+                Text(
+                    modifier = Modifier.align(Alignment.CenterHorizontally),
+                    text = stringResource(id = R.string.no_file_chosen),
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    style = MaterialTheme.typography.bodySmall,
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+                BitwardenFilledTonalButton(
+                    label = stringResource(id = R.string.choose_file),
+                    onClick = addSendHandlers.onChooseFileCLick,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(horizontal = 16.dp),
+                )
+                Spacer(modifier = Modifier.height(4.dp))
+                Text(
+                    text = stringResource(id = R.string.max_file_size),
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    style = MaterialTheme.typography.bodySmall,
+                    modifier = Modifier.padding(horizontal = 32.dp),
+                )
+                Spacer(modifier = Modifier.height(16.dp))
+                Text(
+                    text = stringResource(id = R.string.type_file_info),
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    style = MaterialTheme.typography.bodySmall,
+                    modifier = Modifier.padding(horizontal = 16.dp),
+                )
+            }
+
+            is AddSendState.ViewState.Content.SendType.Text -> {
+                BitwardenTextField(
+                    modifier = Modifier.padding(horizontal = 16.dp),
+                    label = stringResource(id = R.string.text),
+                    hint = stringResource(id = R.string.type_text_info),
+                    value = type.input,
+                    onValueChange = addSendHandlers.onTextChange,
+                )
+                Spacer(modifier = Modifier.height(16.dp))
+                BitwardenWideSwitch(
+                    modifier = Modifier.padding(horizontal = 16.dp),
+                    label = stringResource(id = R.string.hide_text_by_default),
+                    isChecked = type.isHideByDefaultChecked,
+                    onCheckedChange = addSendHandlers.onIsHideByDefaultToggle,
+                )
+            }
+        }
+
+        Spacer(modifier = Modifier.height(16.dp))
+        AddSendOptions(
+            state = state,
+            onMaxAccessCountChange = addSendHandlers.onMaxAccessCountChange,
+            onPasswordChange = addSendHandlers.onPasswordChange,
+            onNoteChange = addSendHandlers.onNoteChange,
+            onHideEmailChecked = addSendHandlers.onHideEmailToggle,
+            onDeactivateSendChecked = addSendHandlers.onDeactivateSendToggle,
+        )
+
+        Spacer(modifier = Modifier.height(24.dp))
+        Spacer(modifier = Modifier.navigationBarsPadding())
+    }
+}
+
+/**
+ * Displays a collapsable set of new send options.
+ *
+ * @param state The content state.
+ * @param onMaxAccessCountChange called when max access count changes.
+ * @param onPasswordChange called when the password changes.
+ * @param onNoteChange called when the notes changes.
+ * @param onHideEmailChecked called when hide email is checked.
+ * @param onDeactivateSendChecked called when deactivate send is checked.
+ */
+@Suppress("LongMethod")
+@Composable
+private fun AddSendOptions(
+    state: AddSendState.ViewState.Content,
+    onMaxAccessCountChange: (Int) -> Unit,
+    onPasswordChange: (String) -> Unit,
+    onNoteChange: (String) -> Unit,
+    onHideEmailChecked: (Boolean) -> Unit,
+    onDeactivateSendChecked: (Boolean) -> Unit,
+) {
+    var isExpanded by rememberSaveable { mutableStateOf(false) }
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable(
+                onClickLabel = if (isExpanded) {
+                    stringResource(id = R.string.options_expanded)
+                } else {
+                    stringResource(id = R.string.options_collapsed)
+                },
+                onClick = { isExpanded = !isExpanded },
+            )
+            .padding(16.dp)
+            .semantics(mergeDescendants = true) {},
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Text(
+            text = stringResource(id = R.string.options),
+            color = MaterialTheme.colorScheme.primary,
+            style = MaterialTheme.typography.labelLarge,
+            modifier = Modifier.padding(end = 8.dp),
+        )
+        Icon(
+            painter = if (isExpanded) {
+                painterResource(R.drawable.ic_expand_up)
+            } else {
+                painterResource(R.drawable.ic_expand_down)
+            },
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.primary,
+        )
+    }
+    // Hide all content if not expanded:
+    AnimatedVisibility(
+        visible = isExpanded,
+        enter = fadeIn() + slideInVertically(),
+        exit = fadeOut() + slideOutVertically(),
+        modifier = Modifier.clipToBounds(),
+    ) {
+        Column {
+            SendDeletionDateChooser(
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+            Spacer(modifier = Modifier.height(8.dp))
+            SendExpirationDateChooser(
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+            Spacer(modifier = Modifier.height(8.dp))
+            BitwardenStepper(
+                label = stringResource(id = R.string.maximum_access_count),
+                value = state.common.maxAccessCount,
+                onValueChange = onMaxAccessCountChange,
+                isDecrementEnabled = state.common.maxAccessCount != null,
+                modifier = Modifier
+                    .padding(horizontal = 16.dp),
+            )
+            Spacer(modifier = Modifier.height(4.dp))
+            Text(
+                text = stringResource(id = R.string.maximum_access_count_info),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 32.dp),
+            )
+            Spacer(modifier = Modifier.height(8.dp))
+            BitwardenPasswordField(
+                label = stringResource(id = R.string.new_password),
+                hint = stringResource(id = R.string.password_info),
+                value = state.common.passwordInput,
+                onValueChange = onPasswordChange,
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+            Spacer(modifier = Modifier.height(8.dp))
+            BitwardenTextField(
+                label = stringResource(id = R.string.notes),
+                hint = stringResource(id = R.string.notes_info),
+                value = state.common.noteInput,
+                onValueChange = onNoteChange,
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+            Spacer(modifier = Modifier.height(16.dp))
+            BitwardenWideSwitch(
+                modifier = Modifier.padding(horizontal = 16.dp),
+                label = stringResource(id = R.string.hide_email),
+                isChecked = state.common.isHideEmailChecked,
+                onCheckedChange = onHideEmailChecked,
+            )
+            Spacer(modifier = Modifier.height(16.dp))
+            BitwardenWideSwitch(
+                modifier = Modifier.padding(horizontal = 16.dp),
+                label = stringResource(id = R.string.disable_send),
+                isChecked = state.common.isDeactivateChecked,
+                onCheckedChange = onDeactivateSendChecked,
+            )
+        }
+    }
+}

app/src/main/java/com/x8bit/bitwarden/ui/tools/feature/send/addsend/AddSendScreen.kt

@@ -1,61 +1,30 @@
 package com.x8bit.bitwarden.ui.tools.feature.send.addsend
 
 import android.widget.Toast
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.fadeOut
-import androidx.compose.animation.slideInVertically
-import androidx.compose.animation.slideOutVertically
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.imePadding
-import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.saveable.rememberSaveable
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clipToBounds
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.semantics.semantics
-import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.x8bit.bitwarden.R
 import com.x8bit.bitwarden.ui.platform.base.util.EventsEffect
-import com.x8bit.bitwarden.ui.platform.components.BitwardenFilledTonalButton
-import com.x8bit.bitwarden.ui.platform.components.BitwardenListHeaderText
-import com.x8bit.bitwarden.ui.platform.components.BitwardenPasswordField
+import com.x8bit.bitwarden.ui.platform.components.BitwardenErrorContent
+import com.x8bit.bitwarden.ui.platform.components.BitwardenLoadingContent
 import com.x8bit.bitwarden.ui.platform.components.BitwardenScaffold
-import com.x8bit.bitwarden.ui.platform.components.BitwardenSegmentedButton
-import com.x8bit.bitwarden.ui.platform.components.BitwardenStepper
 import com.x8bit.bitwarden.ui.platform.components.BitwardenTextButton
-import com.x8bit.bitwarden.ui.platform.components.BitwardenTextField
 import com.x8bit.bitwarden.ui.platform.components.BitwardenTopAppBar
-import com.x8bit.bitwarden.ui.platform.components.BitwardenWideSwitch
-import com.x8bit.bitwarden.ui.platform.components.SegmentedButtonState
-import com.x8bit.bitwarden.ui.tools.feature.send.SendDeletionDateChooser
-import com.x8bit.bitwarden.ui.tools.feature.send.SendExpirationDateChooser
+import com.x8bit.bitwarden.ui.tools.feature.send.addsend.handlers.AddSendHandlers
 
 /**
  * Displays new send UX.
@@ -104,249 +73,25 @@ fun AddSendScreen(
             )
         },
     ) { innerPadding ->
-        Column(
-            modifier = Modifier
-                .imePadding()
-                .fillMaxSize()
-                .verticalScroll(rememberScrollState())
-                .padding(paddingValues = innerPadding),
-        ) {
-            BitwardenTextField(
-                modifier = Modifier.padding(horizontal = 16.dp),
-                label = stringResource(id = R.string.name),
-                hint = stringResource(id = R.string.name_info),
-                value = state.name,
-                onValueChange = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.NameChange(it)) }
-                },
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-            BitwardenListHeaderText(
-                label = stringResource(id = R.string.type),
-                modifier = Modifier.padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-            BitwardenSegmentedButton(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 16.dp),
-                options = listOf(
-                    SegmentedButtonState(
-                        text = stringResource(id = R.string.file),
-                        onClick = remember(viewModel) {
-                            { viewModel.trySendAction(AddSendAction.FileTypeClick) }
-                        },
-                        isChecked = state.selectedType is AddSendState.SendType.File,
-                    ),
-                    SegmentedButtonState(
-                        text = stringResource(id = R.string.text),
-                        onClick = remember(viewModel) {
-                            { viewModel.trySendAction(AddSendAction.TextTypeClick) }
-                        },
-                        isChecked = state.selectedType is AddSendState.SendType.Text,
-                    ),
-                ),
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-            when (val type = state.selectedType) {
-                is AddSendState.SendType.File -> {
-                    BitwardenListHeaderText(
-                        label = stringResource(id = R.string.file),
-                        modifier = Modifier.padding(horizontal = 16.dp),
-                    )
-                    Spacer(modifier = Modifier.height(16.dp))
-                    Text(
-                        modifier = Modifier.align(Alignment.CenterHorizontally),
-                        text = stringResource(id = R.string.no_file_chosen),
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        style = MaterialTheme.typography.bodySmall,
-                    )
-                    Spacer(modifier = Modifier.height(8.dp))
-                    BitwardenFilledTonalButton(
-                        label = stringResource(id = R.string.choose_file),
-                        onClick = remember(viewModel) {
-                            { viewModel.trySendAction(AddSendAction.ChooseFileClick) }
-                        },
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(horizontal = 16.dp),
-                    )
-                    Spacer(modifier = Modifier.height(4.dp))
-                    Text(
-                        text = stringResource(id = R.string.max_file_size),
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        style = MaterialTheme.typography.bodySmall,
-                        modifier = Modifier.padding(horizontal = 32.dp),
-                    )
-                    Spacer(modifier = Modifier.height(16.dp))
-                    Text(
-                        text = stringResource(id = R.string.type_file_info),
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        style = MaterialTheme.typography.bodySmall,
-                        modifier = Modifier.padding(horizontal = 16.dp),
-                    )
-                }
+        val modifier = Modifier
+            .imePadding()
+            .fillMaxSize()
+            .padding(paddingValues = innerPadding)
 
-                is AddSendState.SendType.Text -> {
-                    BitwardenTextField(
-                        modifier = Modifier.padding(horizontal = 16.dp),
-                        label = stringResource(id = R.string.text),
-                        hint = stringResource(id = R.string.type_text_info),
-                        value = type.input,
-                        onValueChange = remember(viewModel) {
-                            { viewModel.trySendAction(AddSendAction.TextChange(it)) }
-                        },
-                    )
-                    Spacer(modifier = Modifier.height(16.dp))
-                    BitwardenWideSwitch(
-                        modifier = Modifier.padding(horizontal = 16.dp),
-                        label = stringResource(id = R.string.hide_text_by_default),
-                        isChecked = type.isHideByDefaultChecked,
-                        onCheckedChange = remember(viewModel) {
-                            { viewModel.trySendAction(AddSendAction.HideByDefaultToggle(it)) }
-                        },
-                    )
-                }
-            }
-            Spacer(modifier = Modifier.height(16.dp))
-            NewSendOptions(
-                state = state,
-                onMaxAccessCountChange = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.MaxAccessCountChange(it)) }
-                },
-                onPasswordChange = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.PasswordChange(it)) }
-                },
-                onNoteChange = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.NoteChange(it)) }
-                },
-                onHideEmailChecked = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.HideMyEmailToggle(it)) }
-                },
-                onDeactivateSendChecked = remember(viewModel) {
-                    { viewModel.trySendAction(AddSendAction.DeactivateThisSendToggle(it)) }
-                },
+        when (val viewState = state.viewState) {
+            is AddSendState.ViewState.Content -> AddSendContent(
+                state = viewState,
+                addSendHandlers = remember(viewModel) { AddSendHandlers.create(viewModel) },
+                modifier = modifier,
             )
-            Spacer(modifier = Modifier.height(24.dp))
-            Spacer(modifier = Modifier.navigationBarsPadding())
-        }
-    }
-}
 
-/**
- * Displays a collapsable set of new send options.
- *
- * @param state state.
- * @param onMaxAccessCountChange called when max access count changes.
- * @param onPasswordChange called when the password changes.
- * @param onNoteChange called when the notes changes.
- * @param onHideEmailChecked called when hide email is checked.
- * @param onDeactivateSendChecked called when deactivate send is checked.
- */
-@Suppress("LongMethod")
-@Composable
-private fun NewSendOptions(
-    state: AddSendState,
-    onMaxAccessCountChange: (Int) -> Unit,
-    onPasswordChange: (String) -> Unit,
-    onNoteChange: (String) -> Unit,
-    onHideEmailChecked: (Boolean) -> Unit,
-    onDeactivateSendChecked: (Boolean) -> Unit,
-) {
-    var isExpanded by rememberSaveable { mutableStateOf(false) }
-    Row(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable(
-                onClickLabel = if (isExpanded) {
-                    stringResource(id = R.string.options_expanded)
-                } else {
-                    stringResource(id = R.string.options_collapsed)
-                },
-                onClick = { isExpanded = !isExpanded },
+            is AddSendState.ViewState.Error -> BitwardenErrorContent(
+                message = viewState.message(),
+                modifier = modifier,
             )
-            .padding(16.dp)
-            .semantics(mergeDescendants = true) {},
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(
-            text = stringResource(id = R.string.options),
-            color = MaterialTheme.colorScheme.primary,
-            style = MaterialTheme.typography.labelLarge,
-            modifier = Modifier.padding(end = 8.dp),
-        )
-        Icon(
-            painter = if (isExpanded) {
-                painterResource(R.drawable.ic_expand_up)
-            } else {
-                painterResource(R.drawable.ic_expand_down)
-            },
-            contentDescription = null,
-            tint = MaterialTheme.colorScheme.primary,
-        )
-    }
-    // Hide all content if not expanded:
-    AnimatedVisibility(
-        visible = isExpanded,
-        enter = fadeIn() + slideInVertically(),
-        exit = fadeOut() + slideOutVertically(),
-        modifier = Modifier.clipToBounds(),
-    ) {
-        Column {
-            SendDeletionDateChooser(
-                modifier = Modifier.padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-            SendExpirationDateChooser(
-                modifier = Modifier.padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-            BitwardenStepper(
-                label = stringResource(id = R.string.maximum_access_count),
-                value = state.maxAccessCount,
-                onValueChange = onMaxAccessCountChange,
-                isDecrementEnabled = state.maxAccessCount != null,
-                modifier = Modifier
-                    .padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(4.dp))
-            Text(
-                text = stringResource(id = R.string.maximum_access_count_info),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 32.dp),
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-            BitwardenPasswordField(
-                label = stringResource(id = R.string.new_password),
-                hint = stringResource(id = R.string.password_info),
-                value = state.passwordInput,
-                onValueChange = onPasswordChange,
-                modifier = Modifier.padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-            BitwardenTextField(
-                label = stringResource(id = R.string.notes),
-                hint = stringResource(id = R.string.notes_info),
-                value = state.noteInput,
-                onValueChange = onNoteChange,
-                modifier = Modifier.padding(horizontal = 16.dp),
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-            BitwardenWideSwitch(
-                modifier = Modifier.padding(horizontal = 16.dp),
-                label = stringResource(id = R.string.hide_email),
-                isChecked = state.isHideEmailChecked,
-                onCheckedChange = onHideEmailChecked,
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-            BitwardenWideSwitch(
-                modifier = Modifier.padding(horizontal = 16.dp),
-                label = stringResource(id = R.string.disable_send),
-                isChecked = state.isDeactivateChecked,
-                onCheckedChange = onDeactivateSendChecked,
+
+            AddSendState.ViewState.Loading -> BitwardenLoadingContent(
+                modifier = modifier,
             )
         }
     }

app/src/main/java/com/x8bit/bitwarden/ui/tools/feature/send/addsend/AddSendViewModel.kt

@@ -4,6 +4,7 @@ import android.os.Parcelable
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.viewModelScope
 import com.x8bit.bitwarden.ui.platform.base.BaseViewModel
+import com.x8bit.bitwarden.ui.platform.base.util.Text
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
@@ -22,15 +23,19 @@ class AddSendViewModel @Inject constructor(
     savedStateHandle: SavedStateHandle,
 ) : BaseViewModel<AddSendState, AddSendEvent, AddSendAction>(
     initialState = savedStateHandle[KEY_STATE] ?: AddSendState(
-        name = "",
-        maxAccessCount = null,
-        passwordInput = "",
-        noteInput = "",
-        isHideEmailChecked = false,
-        isDeactivateChecked = false,
-        selectedType = AddSendState.SendType.Text(
-            input = "",
-            isHideByDefaultChecked = false,
+        viewState = AddSendState.ViewState.Content(
+            common = AddSendState.ViewState.Content.Common(
+                name = "",
+                maxAccessCount = null,
+                passwordInput = "",
+                noteInput = "",
+                isHideEmailChecked = false,
+                isDeactivateChecked = false,
+            ),
+            selectedType = AddSendState.ViewState.Content.SendType.Text(
+                input = "",
+                isHideByDefaultChecked = false,
+            ),
         ),
     ),
 ) {
@@ -58,25 +63,25 @@ class AddSendViewModel @Inject constructor(
     }
 
     private fun handlePasswordChange(action: AddSendAction.PasswordChange) {
-        mutableStateFlow.update {
+        updateCommonContent {
             it.copy(passwordInput = action.input)
         }
     }
 
     private fun handleNoteChange(action: AddSendAction.NoteChange) {
-        mutableStateFlow.update {
+        updateCommonContent {
             it.copy(noteInput = action.input)
         }
     }
 
     private fun handleHideMyEmailToggle(action: AddSendAction.HideMyEmailToggle) {
-        mutableStateFlow.update {
+        updateCommonContent {
             it.copy(isHideEmailChecked = action.isChecked)
         }
     }
 
     private fun handleDeactivateThisSendToggle(action: AddSendAction.DeactivateThisSendToggle) {
-        mutableStateFlow.update {
+        updateCommonContent {
             it.copy(isDeactivateChecked = action.isChecked)
         }
     }
@@ -86,36 +91,37 @@ class AddSendViewModel @Inject constructor(
     private fun handleSaveClick() = sendEvent(AddSendEvent.ShowToast("Save Not Implemented"))
 
     private fun handleNameChange(action: AddSendAction.NameChange) {
-        mutableStateFlow.update {
+        updateCommonContent {
             it.copy(name = action.input)
         }
     }
 
     private fun handleFileTypeClick() {
-        mutableStateFlow.update {
-            it.copy(selectedType = AddSendState.SendType.File)
+        updateContent {
+            it.copy(selectedType = AddSendState.ViewState.Content.SendType.File)
         }
     }
 
     private fun handleTextTypeClick() {
-        mutableStateFlow.update {
-            it.copy(selectedType = AddSendState.SendType.Text("", isHideByDefaultChecked = false))
+        updateContent {
+            it.copy(
+                selectedType = AddSendState.ViewState.Content.SendType.Text(
+                    input = "",
+                    isHideByDefaultChecked = false,
+                ),
+            )
         }
     }
 
     private fun handleTextChange(action: AddSendAction.TextChange) {
-        val currentSendInput =
-            mutableStateFlow.value.selectedType as? AddSendState.SendType.Text ?: return
-        mutableStateFlow.update {
-            it.copy(selectedType = currentSendInput.copy(input = action.input))
+        updateTextContent {
+            it.copy(input = action.input)
         }
     }
 
     private fun handleHideByDefaultToggle(action: AddSendAction.HideByDefaultToggle) {
-        val currentSendInput =
-            mutableStateFlow.value.selectedType as? AddSendState.SendType.Text ?: return
-        mutableStateFlow.update {
-            it.copy(selectedType = currentSendInput.copy(isHideByDefaultChecked = action.isChecked))
+        updateTextContent {
+            it.copy(isHideByDefaultChecked = action.isChecked)
         }
     }
 
@@ -125,8 +131,54 @@ class AddSendViewModel @Inject constructor(
     }
 
     private fun handleMaxAccessCountChange(action: AddSendAction.MaxAccessCountChange) {
-        mutableStateFlow.update {
-            it.copy(maxAccessCount = action.value)
+        updateCommonContent { it.copy(maxAccessCount = action.value) }
+    }
+
+    private inline fun onContent(
+        crossinline block: (AddSendState.ViewState.Content) -> Unit,
+    ) {
+        (state.viewState as? AddSendState.ViewState.Content)?.let(block)
+    }
+
+    private inline fun updateContent(
+        crossinline block: (
+            AddSendState.ViewState.Content,
+        ) -> AddSendState.ViewState.Content?,
+    ) {
+        val currentViewState = state.viewState
+        val updatedContent = (currentViewState as? AddSendState.ViewState.Content)
+            ?.let(block)
+            ?: return
+        mutableStateFlow.update { it.copy(viewState = updatedContent) }
+    }
+
+    private inline fun updateCommonContent(
+        crossinline block: (
+            AddSendState.ViewState.Content.Common,
+        ) -> AddSendState.ViewState.Content.Common,
+    ) {
+        updateContent { it.copy(common = block(it.common)) }
+    }
+
+    private inline fun updateFileContent(
+        crossinline block: (
+            AddSendState.ViewState.Content.SendType.File,
+        ) -> AddSendState.ViewState.Content.SendType.File,
+    ) {
+        updateContent { currentContent ->
+            (currentContent.selectedType as? AddSendState.ViewState.Content.SendType.File)
+                ?.let { currentContent.copy(selectedType = block(it)) }
+        }
+    }
+
+    private inline fun updateTextContent(
+        crossinline block: (
+            AddSendState.ViewState.Content.SendType.Text,
+        ) -> AddSendState.ViewState.Content.SendType.Text,
+    ) {
+        updateContent { currentContent ->
+            (currentContent.selectedType as? AddSendState.ViewState.Content.SendType.Text)
+                ?.let { currentContent.copy(selectedType = block(it)) }
         }
     }
 }
@@ -136,34 +188,68 @@ class AddSendViewModel @Inject constructor(
  */
 @Parcelize
 data class AddSendState(
-    val name: String,
-    val selectedType: SendType,
-    // Null here means "not set"
-    val maxAccessCount: Int?,
-    val passwordInput: String,
-    val noteInput: String,
-    val isHideEmailChecked: Boolean,
-    val isDeactivateChecked: Boolean,
+    val viewState: ViewState,
 ) : Parcelable {
 
     /**
-     * Models what type the user is trying to send.
+     * Represents the specific view states for the [AddSendScreen].
      */
-    sealed class SendType : Parcelable {
+    sealed class ViewState : Parcelable {
         /**
-         * Sending a file.
+         * Represents an error state for the [AddSendScreen].
          */
         @Parcelize
-        data object File : SendType()
+        data class Error(val message: Text) : ViewState()
 
         /**
-         * Sending text.
+         * Loading state for the [AddSendScreen], signifying that the content is being processed.
          */
         @Parcelize
-        data class Text(
-            val input: String,
-            val isHideByDefaultChecked: Boolean,
-        ) : SendType()
+        data object Loading : ViewState()
+
+        /**
+         * Represents a loaded content state for the [AddSendScreen].
+         */
+        @Parcelize
+        data class Content(
+            val common: Common,
+            val selectedType: SendType,
+        ) : ViewState() {
+
+            /**
+             * Content data that is common for all item types.
+             */
+            @Parcelize
+            data class Common(
+                val name: String,
+                // Null here means "not set"
+                val maxAccessCount: Int?,
+                val passwordInput: String,
+                val noteInput: String,
+                val isHideEmailChecked: Boolean,
+                val isDeactivateChecked: Boolean,
+            ) : Parcelable
+
+            /**
+             * Models what type the user is trying to send.
+             */
+            sealed class SendType : Parcelable {
+                /**
+                 * Sending a file.
+                 */
+                @Parcelize
+                data object File : SendType()
+
+                /**
+                 * Sending text.
+                 */
+                @Parcelize
+                data class Text(
+                    val input: String,
+                    val isHideByDefaultChecked: Boolean,
+                ) : SendType()
+            }
+        }
     }
 }
 

app/src/main/java/com/x8bit/bitwarden/ui/tools/feature/send/addsend/handlers/AddSendHandlers.kt

@@ -0,0 +1,53 @@
+package com.x8bit.bitwarden.ui.tools.feature.send.addsend.handlers
+
+import com.x8bit.bitwarden.ui.tools.feature.send.addsend.AddSendAction
+import com.x8bit.bitwarden.ui.tools.feature.send.addsend.AddSendViewModel
+
+/**
+ * A collection of handler functions for managing actions within the context of adding
+ * send items.
+ */
+data class AddSendHandlers(
+    val onNamChange: (String) -> Unit,
+    val onFileTypeSelect: () -> Unit,
+    val onTextTypeSelect: () -> Unit,
+    val onChooseFileCLick: () -> Unit,
+    val onTextChange: (String) -> Unit,
+    val onIsHideByDefaultToggle: (Boolean) -> Unit,
+    val onMaxAccessCountChange: (Int) -> Unit,
+    val onPasswordChange: (String) -> Unit,
+    val onNoteChange: (String) -> Unit,
+    val onHideEmailToggle: (Boolean) -> Unit,
+    val onDeactivateSendToggle: (Boolean) -> Unit,
+) {
+    companion object {
+        /**
+         * Creates an instance of [AddSendHandlers] by binding actions to the provided
+         * [AddSendViewModel].
+         */
+        fun create(
+            viewModel: AddSendViewModel,
+        ): AddSendHandlers =
+            AddSendHandlers(
+                onNamChange = { viewModel.trySendAction(AddSendAction.NameChange(it)) },
+                onFileTypeSelect = { viewModel.trySendAction(AddSendAction.FileTypeClick) },
+                onTextTypeSelect = { viewModel.trySendAction(AddSendAction.TextTypeClick) },
+                onChooseFileCLick = { viewModel.trySendAction(AddSendAction.ChooseFileClick) },
+                onTextChange = { viewModel.trySendAction(AddSendAction.TextChange(it)) },
+                onIsHideByDefaultToggle = {
+                    viewModel.trySendAction(AddSendAction.HideByDefaultToggle(it))
+                },
+                onMaxAccessCountChange = {
+                    viewModel.trySendAction(AddSendAction.MaxAccessCountChange(it))
+                },
+                onPasswordChange = { viewModel.trySendAction(AddSendAction.PasswordChange(it)) },
+                onNoteChange = { viewModel.trySendAction(AddSendAction.NoteChange(it)) },
+                onHideEmailToggle = {
+                    viewModel.trySendAction(AddSendAction.HideMyEmailToggle(it))
+                },
+                onDeactivateSendToggle = {
+                    viewModel.trySendAction(AddSendAction.DeactivateThisSendToggle(it))
+                },
+            )
+    }
+}