Merge branch 'frontend/project-picker' into 'main'

feat: project picker startup

Closes #11

See merge request EmmaVandewalle/writand!45

app/build.gradle

@@ -99,7 +99,7 @@ dependencies {
 
     // Room
     implementation 'androidx.room:room-runtime:2.6.1'
-    annotationProcessor 'androidx.room:room-compiler:2.6.1'
+    kapt 'androidx.room:room-compiler:2.6.1' // Use kapt instead of annotationProcessor
     implementation 'androidx.room:room-ktx:2.6.1'
 
     // Proto DataStore

app/src/main/java/be/re/writand/data/local/db/OpenedFilesDao.kt

@@ -0,0 +1,33 @@
+package be.re.writand.data.local.db
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import be.re.writand.data.local.models.OpenFilePath
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface OpenedFilesDao {
+
+    /**
+     * Get all the opened files from a project.
+     */
+    @Query("SELECT * FROM openedFiles WHERE projectId = :fromProjectId")
+    fun getAllOpenedFiles(fromProjectId: Int): Flow<List<OpenFilePath>>
+
+    /**
+     * Insert a file into the database that was just opened.
+     * @param[openFilePath] the OpenFilePath to add in the database.
+     */
+    @Insert(entity = OpenedFilesEntity::class)
+    suspend fun insertOpenedFilePath(openFilePath: OpenFilePath)
+
+    /**
+     * Delete a OpenFilePath from the open files of a project.
+     * @param[openFilePathId] the OpenFilePath to be deleted from the database.
+     */
+    @Query("DELETE FROM openedFiles where id = :openFilePathId")
+    suspend fun deleteOpenFilePath(openFilePathId: Int)
+
+}

app/src/main/java/be/re/writand/data/local/db/OpenedFilesDatabase.kt

@@ -0,0 +1,25 @@
+package be.re.writand.data.local.db
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+
+/**
+ * Database for all the open files corresponding to the saved projects.
+ */
+@Database(entities = [OpenedFilesEntity::class, ProjectEntity::class], version = 1)
+abstract class OpenedFilesDatabase: RoomDatabase() {
+
+    abstract fun openedFilesDao(): OpenedFilesDao
+
+    companion object {
+        @Volatile private var instance: OpenedFilesDatabase? = null
+
+        fun getInstance(context: Context) = instance ?: synchronized(this) {
+            return Room.databaseBuilder(
+                context.applicationContext, OpenedFilesDatabase::class.java, "openedFiles-db"
+            ).build().also { instance = it }
+        }
+    }
+}

app/src/main/java/be/re/writand/data/local/db/OpenedFilesEntity.kt

@@ -0,0 +1,31 @@
+package be.re.writand.data.local.db
+
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+/**
+ * Entity for storing the opened files of a project.
+ * @param[projectId] the id of the project the file belongs to.
+ * @param[path] the absolute path to the file starting from the root of the project.
+ * @param[isSaved] info whether the file was saved before closing the app (for expansion of unsaved files).
+ */
+@Entity(
+    tableName = "openedFiles",
+    foreignKeys = [
+        ForeignKey(
+            entity = ProjectEntity::class,
+            parentColumns = arrayOf("projectId"),
+            childColumns = arrayOf("projectId"),
+            onDelete = ForeignKey.CASCADE
+        )
+    ],
+    indices = [Index(value = ["projectId"])]
+)
+data class OpenedFilesEntity (
+    @PrimaryKey(autoGenerate = true) val id: Int,
+    val projectId: Int,
+    val path: String,
+    val isSaved: Boolean
+)

app/src/main/java/be/re/writand/data/local/db/ProjectEntity.kt

@@ -1,19 +1,18 @@
 package be.re.writand.data.local.db
 
 import androidx.room.Entity
+import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
 import be.re.writand.data.local.models.OpenFilePath
 
 /**
  * Entity for recent projects to keep in memory, used in the ProjectsDAO.
- * @param[id] the unique id of a project.
+ * @param[projectId] the unique id of a project.
  * @param[path] the absolute path to the directory/file.
  * A file in case of a project consisting of 1 file only.
- * @param[openedFiles] a list of objects to specify more about each last opened file.
  */
 @Entity(tableName = "projects")
 data class ProjectEntity (
-    @PrimaryKey val id: Int,
+    @PrimaryKey(autoGenerate = true) val projectId: Int,
-    val path: String,
+    val path: String
-    val openedFiles: List<OpenFilePath>
 )

app/src/main/java/be/re/writand/data/local/db/ProjectsDao.kt

@@ -29,9 +29,9 @@ interface ProjectsDao {
     /**
      * Delete a project from the recent opened projects.
      * Should be called when the limit of saving projects is reached.
-     * @param[project] the project to be deleted from the database.
+     * @param[id] the project id to be deleted from the database.
      */
-    @Delete(entity = ProjectEntity::class)
+    @Query("DELETE FROM projects where projectId = :id")
-    suspend fun deleteProject(project: Project)
+    suspend fun deleteProject(id: Int)
 
 }

app/src/main/java/be/re/writand/data/local/models/Project.kt

@@ -2,15 +2,15 @@ package be.re.writand.data.local.models
 
 /**
  * Data class used in the ProjectsDAO to store information about a recent project.
- * @param[id] a unique id for the project.
+ * @param[projectId] a unique id for the project.
  * @param[path] the absolute path to the directory/file location of the project.
  */
-data class Project(val id: Int, val path: String)
+data class Project(val projectId: Int, val path: String)
 
 /**
  * Data class used in ProjectEntity to store information about a recent file of a project.
  * @param[projectId] the id of the project the file belongs to.
- * @param[path] the relative path to the file starting from the root fo the project.
+ * @param[path] the relative path to the file starting from the root of the project.
  * @param[isSaved] info whether the file was saved before closing the app (for expansion of unsaved files).
  */
-data class OpenFilePath(val projectId: Int, val path: String, var isSaved: Boolean)
+data class OpenFilePath(val id: Int, val projectId: Int, val path: String, var isSaved: Boolean)

app/src/main/java/be/re/writand/data/repos/projects/IOpenedFilesRepository.kt

@@ -0,0 +1,29 @@
+package be.re.writand.data.repos.projects
+
+import be.re.writand.data.local.models.OpenFilePath
+import kotlinx.coroutines.flow.Flow
+
+
+/**
+ * Repository that handles everything for the local OpenedFilesDatabase.
+ * @param[dao] the dao provides get/add/delete functionality of the opened files from a project.
+ */
+interface IOpenedFilesRepository {
+
+    /**
+     * Gets all the opened files from the local storage.
+     */
+    fun getAllOpenedFiles(fromProjectId: Int): Flow<List<OpenFilePath>>
+
+    /**
+     * Adds a file to the local storage of a recent project.
+     * @param[openFilePath] the OpenedFilePath to be added to the database.
+     */
+    suspend fun addOpenedFilePath(openFilePath: OpenFilePath)
+
+    /**
+     * Deletes a file from the local storage of opened files of a project.
+     * @param[openFilePathId] the OpenedFilePath to be deleted from the database.
+     */
+    suspend fun deleteOpenFilePath(openFilePathId: Int)
+}

app/src/main/java/be/re/writand/data/repos/projects/IProjectsRepository.kt

@@ -23,7 +23,7 @@ interface IProjectsRepository {
 
     /**
      * Deletes a project from the local storage of recent projects.
-     * @param[project] the project to be deleted from the database.
+     * @param[projectId] the project to be deleted from the database.
      */
-    suspend fun deleteProject(project: Project)
+    suspend fun deleteProject(projectId: Int)
 }

app/src/main/java/be/re/writand/data/repos/projects/OpenedFilesRepository.kt

@@ -0,0 +1,27 @@
+package be.re.writand.data.repos.projects
+
+import be.re.writand.data.local.db.OpenedFilesDao
+import be.re.writand.data.local.models.OpenFilePath
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Repository that handles everything for the local OpenedFilesDatabase.
+ * @param[dao] the dao provides get/add/delete functionality of the opened files from a project.
+ */
+@Singleton
+class OpenedFilesRepository @Inject constructor(private val dao: OpenedFilesDao): IOpenedFilesRepository {
+
+    override fun getAllOpenedFiles(fromProjectId: Int): Flow<List<OpenFilePath>> {
+        return dao.getAllOpenedFiles(fromProjectId)
+    }
+
+    override suspend fun addOpenedFilePath(openFilePath: OpenFilePath) {
+        dao.insertOpenedFilePath(openFilePath)
+    }
+
+    override suspend fun deleteOpenFilePath(openFilePathId: Int) {
+        dao.deleteOpenFilePath(openFilePathId)
+    }
+}

app/src/main/java/be/re/writand/data/repos/projects/ProjectsRepository.kt

@@ -6,6 +6,10 @@ import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 import javax.inject.Singleton
 
+/**
+ * Repository that handles everything for the local ProjectsDatabase.
+ * @param[dao] the dao provides get/add/delete functionality of the recent projects.
+ */
 @Singleton
 class ProjectsRepository @Inject constructor(private val dao: ProjectsDao): IProjectsRepository {
 
@@ -17,7 +21,7 @@ class ProjectsRepository @Inject constructor(private val dao: ProjectsDao): IPro
         dao.insertProject(project)
     }
 
-    override suspend fun deleteProject(project: Project) {
+    override suspend fun deleteProject(projectId: Int) {
-        dao.deleteProject(project)
+        dao.deleteProject(projectId)
     }
 }

app/src/main/java/be/re/writand/di/DatabaseModule.kt

@@ -1,6 +1,8 @@
 package be.re.writand.di
 
 import android.content.Context
+import be.re.writand.data.local.db.OpenedFilesDao
+import be.re.writand.data.local.db.OpenedFilesDatabase
 import be.re.writand.data.local.filemanager.FileManagerLocal
 import be.re.writand.data.local.filemanager.IFileManager
 import be.re.writand.data.local.db.ProjectsDao
@@ -28,11 +30,23 @@ class DatabaseModule {
     fun provideProjectsDatabase(@ApplicationContext context: Context): ProjectsDatabase {
         return ProjectsDatabase.getInstance(context)
     }
+
     @Provides
     fun provideProjectsDao(projectsDatabase: ProjectsDatabase): ProjectsDao {
         return projectsDatabase.projectsDao()
     }
 
+    @Singleton
+    @Provides
+    fun provideOpenedFilesDatabase(@ApplicationContext context: Context): OpenedFilesDatabase {
+        return OpenedFilesDatabase.getInstance(context)
+    }
+
+    @Provides
+    fun provideOpenedFilesDao(openedFilesDatabase: OpenedFilesDatabase): OpenedFilesDao {
+        return openedFilesDatabase.openedFilesDao()
+    }
+
     /**
      * Provide the application context for TOSRepo.
      */

app/src/main/java/be/re/writand/domain/projects/AddRecentProjectUseCase.kt

@@ -0,0 +1,19 @@
+package be.re.writand.domain.projects
+
+import be.re.writand.data.local.models.Project
+import be.re.writand.data.repos.projects.ProjectsRepository
+import javax.inject.Inject
+
+/**
+ * Use-case that adds a project to the local storage of recent projects.
+ * @param[projectsRepository] Repository to interact with the projects data source.
+ */
+class AddRecentProjectUseCase @Inject constructor(
+    private val projectsRepository: ProjectsRepository
+) {
+
+    suspend operator fun invoke(project: Project) {
+        projectsRepository.addProject(project)
+    }
+
+}

app/src/main/java/be/re/writand/domain/projects/GetRecentProjectsUseCase.kt

@@ -0,0 +1,20 @@
+package be.re.writand.domain.projects
+
+import be.re.writand.data.local.models.Project
+import be.re.writand.data.repos.projects.ProjectsRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+/**
+ * Use-case that gets all the recent projects from the local storage.
+ * @param[projectsRepository] the repository that provides the projects.
+ */
+class GetRecentProjectsUseCase @Inject constructor(
+    private val projectsRepository: ProjectsRepository
+) {
+
+    operator fun invoke(): Flow<List<Project>> {
+        return projectsRepository.getAllProjects()
+    }
+
+}

app/src/main/java/be/re/writand/navigation/WNavGraph.kt

@@ -1,5 +1,6 @@
 package be.re.writand.navigation
 
+import android.util.Log
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.navigation.compose.NavHost
@@ -11,6 +12,7 @@ import be.re.writand.screens.splash.SplashScreen
 import be.re.writand.screens.welcome.WelcomeSettingsScreen
 import be.re.writand.screens.welcome.WelcomeStartScreen
 import be.re.writand.screens.welcome.WelcomeTOSScreen
+import java.net.URLDecoder
 
 /**
  * The navigation controller containing all the different screens a user can go to.
@@ -60,8 +62,17 @@ fun WNavGraph(navHostController: NavHostController, modifier: Modifier) {
 
         // Editor view
 
-        composable(WAppDestinations.MAIN_EDITOR) {
+        composable(WAppDestinations.MAIN_EDITOR + "/{projectId}/{path}") { entry ->
-            EditorScreen(navHostController = navHostController)
+            val projectId: Int? = entry.arguments?.getInt("projectId")
+            val path: String? =
+                entry.arguments?.getString("path")?.let { URLDecoder.decode(it, "UTF-8") }
+            if (projectId != null) {
+                EditorScreen(
+                    navHostController = navHostController,
+                    projectId = projectId,
+                    path = path ?: "./"
+                )
+            }
         }
 
     }

app/src/main/java/be/re/writand/screens/components/PopUps.kt

@@ -47,7 +47,7 @@ enum class CreationType {
  * @param[onDismiss] a function belonging to the exit button if it needs to be shown (default is the empty function).
  */
 @Composable
-private fun TopPopUpBar(title: String, showExit: Boolean = true, onDismiss: () -> Unit = {}) {
+fun TopPopUpBar(title: String, showExit: Boolean = true, onDismiss: () -> Unit = {}) {
     Row(
         horizontalArrangement = Arrangement.SpaceBetween,
         verticalAlignment = Alignment.CenterVertically,

app/src/main/java/be/re/writand/screens/components/WPopup.kt

@@ -3,7 +3,6 @@ package be.re.writand.screens.components
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.absoluteOffset
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.width
@@ -11,11 +10,9 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.FabPosition
 import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.AbsoluteAlignment
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Dialog

app/src/main/java/be/re/writand/screens/editor/EditorScreen.kt

@@ -27,6 +27,8 @@ import be.re.writand.screens.settings.SettingsPopup
 @Composable
 fun EditorScreen(
     navHostController: NavHostController,
+    projectId: Int,
+    path: String,
     vm: EditorScreenViewModel = hiltViewModel()
 ) {
     // state for filetree view
@@ -48,7 +50,7 @@ fun EditorScreen(
         Row(modifier = Modifier.padding(it).padding(10.dp)) {
             if(isOpened) {
                 WFiletree(
-                    root = "/storage/emulated/0/Documents/webserver",
+                    root = path,
                     modifier = Modifier.weight(1F),
                     onSelect = { path ->
                     vm.setOpenedFile(path)

app/src/main/java/be/re/writand/screens/filetree/WTreeComponent.kt

@@ -1,31 +1,23 @@
 package be.re.writand.screens.filetree
 
-import androidx.compose.foundation.background
-import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 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.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListScope
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.filled.Add
-import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.KeyboardArrowDown
 import androidx.compose.material3.Icon
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -45,7 +37,6 @@ import be.re.writand.screens.components.WDangerButton
 import be.re.writand.screens.components.WLabelAndTextField
 import be.re.writand.screens.components.WPopup
 import be.re.writand.screens.components.WText
-import be.re.writand.ui.theme.MainGreen
 import be.re.writand.utils.FileNode
 import java.nio.file.Path
 

app/src/main/java/be/re/writand/screens/projectpicker/ProjectPickerScreen.kt

@@ -1,23 +1,286 @@
 package be.re.writand.screens.projectpicker
 
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Settings
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.navigation.NavHostController
+import be.re.writand.data.local.models.Project
 import be.re.writand.navigation.WAppDestinations
+import be.re.writand.screens.WUIGlobals
+import be.re.writand.screens.components.TopPopUpBar
+import be.re.writand.screens.components.WBorderButton
 import be.re.writand.screens.components.WButton
+import be.re.writand.screens.components.WLoadingIndicator
+import be.re.writand.screens.components.WLogoImage
+import be.re.writand.screens.components.WPopup
+import be.re.writand.screens.components.WText
+import be.re.writand.screens.directoryprovider.DirectoryProvider
+import kotlinx.coroutines.delay
+import java.io.File
+import java.net.URLEncoder
 
+/**
+ * A composable that shows a list of projects and allows the user to open them.
+ * The screen has two parts: a list of recent projects, and a set of buttons
+ * to open a project or create a new one.
+ * @param[navHostController] the navigation host controller used to navigate to other screens.
+ * @param[vM] the view model of the screen, used to get the projects.
+ */
 @Composable
 fun ProjectPickerScreen(
-    navHostController: NavHostController
+    navHostController: NavHostController,
+    vM: ProjectPickerViewModel = hiltViewModel()
 ) {
+    val projects by vM.projects.collectAsState()
+    val openDialog = remember { mutableStateOf(false) }
 
-    Box(modifier = Modifier.size(20.dp, 20.dp)) {
+    Box(
-        WButton(
+        modifier = Modifier
-            text = "Create new",
+            .background(color = MaterialTheme.colorScheme.secondary),
-            onClick = { navHostController.navigate(WAppDestinations.MAIN_EDITOR) }
+        contentAlignment = Alignment.Center
+    ) {
+        Scaffold(modifier = Modifier
+            .size(600.dp)
+            .border(
+                1.dp,
+                color = MaterialTheme.colorScheme.tertiary,
+                shape = RoundedCornerShape(WUIGlobals.cornerRadius)
+            )
+            .clip(shape = RoundedCornerShape(WUIGlobals.cornerRadius)),
+            topBar = {
+                Box(modifier = Modifier.height(75.dp)) {
+                    WLogoImage(
+                        modifier = Modifier.padding(25.dp),
+                        alignment = Alignment.CenterStart
                     )
                 }
             }
+        ) {
+            Column(
+                modifier = Modifier
+                    .padding(it)
+                    .fillMaxSize(),
+                verticalArrangement = Arrangement.Center,
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                WText(
+                    text = "Recent projects",
+                    settingsFontSizeAlterBy = WUIGlobals.HEADING
+                )
+
+                Column(
+                    modifier = Modifier
+                        .size(width = 500.dp, height = 400.dp)
+                ) {
+                    Box(
+                        modifier = Modifier
+                            .height(350.dp)
+                            .fillMaxWidth()
+                            .border(
+                                1.dp,
+                                color = MaterialTheme.colorScheme.tertiary,
+                                shape = RoundedCornerShape(WUIGlobals.cornerRadius)
+                            )
+                            .clip(shape = RoundedCornerShape(WUIGlobals.cornerRadius)),
+                    ) {
+                        when (val value = projects) {
+                            ProjectPickerUiState.Loading -> {
+                                WLoadingIndicator()
+                            }
+
+                            is ProjectPickerUiState.Success -> {
+                                LazyColumn {
+                                    items(value.projects.size) { project ->
+                                        ProjectItem(value.projects[project], navHostController)
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    Row(
+                        modifier = Modifier.fillMaxSize(),
+                        verticalAlignment = Alignment.Bottom,
+                        horizontalArrangement = Arrangement.End
+                    ) {
+                        WButton("Open/Create Project", onClick = {
+                            openDialog.value = !openDialog.value
+                        })
+                    }
+                }
+            }
+        }
+    }
+
+    if (openDialog.value) {
+        DirectoryProvider(
+            onDismiss = { openDialog.value = false },
+            onConfirm = {
+                val newProject = Project(projectId = vM.amountOfProjects, path = it)
+                vM.addProject(newProject)
+                navHostController.navigate(
+                    WAppDestinations.MAIN_EDITOR
+                            + "/${newProject.projectId}/${
+                        URLEncoder.encode(
+                            newProject.path,
+                            "UTF-8"
+                        )
+                    }"
+                )
+            }
+        )
+    }
+}
+
+/**
+ * A composable that shows a single project.
+ * @param[project] the project to show.
+ * @param[navHostController] the navigation host controller to navigate to the editor screen.
+ */
+@Composable
+fun ProjectItem(
+    project: Project,
+    navHostController: NavHostController
+) {
+    val showProjectConfirmation = remember { mutableStateOf(false) }
+    val name = project.path.split(File.separator).last()
+
+    var isClicked by remember { mutableStateOf(false) }
+
+    Column {
+        Row(
+            modifier = Modifier
+                .background(
+                    color = if (isClicked) MaterialTheme.colorScheme.secondary
+                    else MaterialTheme.colorScheme.primary
+                )
+                .fillMaxWidth()
+                .padding(vertical = 15.dp, horizontal = 10.dp)
+                .pointerInput(Unit) {
+                    detectTapGestures(
+                        onTap = {
+                            isClicked = true
+                        },
+                        onDoubleTap = {
+                            isClicked = true
+                            showProjectConfirmation.value = true
+                        }
+                    )
+                },
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
+            WText(text = name)
+            WText(text = project.path)
+        }
+        HorizontalDivider()
+    }
+
+    if (showProjectConfirmation.value) {
+        PickProjectPopup(
+            name = name,
+            project = project,
+            onDismiss = { showProjectConfirmation.value = false },
+            navHostController = navHostController
+        )
+    }
+
+    LaunchedEffect(isClicked) {
+        if (isClicked) {
+            delay(200L)
+            isClicked = false
+        }
+    }
+}
+
+/**
+ * A pop up asking for confirmation before opening a project.
+ * @param[name] the name of the project to be opened.
+ * @param[project] the project to be opened.
+ * @param[onDismiss] a function to be called when the pop up is to be closed.
+ * @param[navHostController] the navigation host controller used to navigate to the editor screen.
+ */
+@Composable
+fun PickProjectPopup(
+    name: String,
+    project: Project,
+    onDismiss: () -> Unit,
+    navHostController: NavHostController
+) {
+    WPopup(
+        titleBar = {
+            TopPopUpBar(title = "Open \"$name\"", onDismiss = onDismiss)
+        },
+        width = 500.dp,
+        height = 250.dp,
+        onDismiss = onDismiss,
+        bottomBar = {
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(10.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                WBorderButton(
+                    text = "Cancel",
+                    onClick = onDismiss
+                )
+
+                WButton(
+                    text = "Continue",
+                    onClick = {
+                        onDismiss()
+                        navHostController.navigate(
+                            WAppDestinations.MAIN_EDITOR
+                                    + "/${project.projectId}/${
+                                URLEncoder.encode(
+                                    project.path,
+                                    "UTF-8"
+                                )
+                            }"
+                        )
+                    }
+                )
+            }
+        }
+    ) {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(it),
+            contentAlignment = Alignment.Center
+        ) {
+            WText(text = "Are you sure you want to open \"$name\"?")
+        }
+    }
+}

app/src/main/java/be/re/writand/screens/projectpicker/ProjectPickerUiState.kt

@@ -0,0 +1,13 @@
+package be.re.writand.screens.projectpicker
+
+import be.re.writand.data.local.models.Project
+
+/**
+ * The ui state for the project picker.
+ * - [Loading] the content is still loading in.
+ * - [Success] the list of projects is ready.
+ */
+sealed interface ProjectPickerUiState {
+    object Loading: ProjectPickerUiState
+    data class Success(val projects: List<Project>): ProjectPickerUiState
+}

app/src/main/java/be/re/writand/screens/projectpicker/ProjectPickerViewModel.kt

@@ -0,0 +1,44 @@
+package be.re.writand.screens.projectpicker
+
+import be.re.writand.data.local.models.Project
+import be.re.writand.domain.projects.AddRecentProjectUseCase
+import be.re.writand.domain.projects.GetRecentProjectsUseCase
+import be.re.writand.screens.WViewModel
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import javax.inject.Inject
+
+/**
+ * View model to be used by ProjectPickerScreen that handles the UserSettings and buttons.
+ * @param[getRecentProjects] use case to get the recent projects.
+ * @param[addRecentProject] use case to add a project to the recent projects.
+ */
+@HiltViewModel
+class ProjectPickerViewModel @Inject constructor(
+    getRecentProjects: GetRecentProjectsUseCase,
+    private val addRecentProject: AddRecentProjectUseCase
+): WViewModel() {
+
+    private val _projects: MutableStateFlow<ProjectPickerUiState> =
+        MutableStateFlow(ProjectPickerUiState.Loading)
+    val projects: StateFlow<ProjectPickerUiState> = _projects
+
+    private val _amountOfProjects: MutableStateFlow<Int> = MutableStateFlow(0);
+    val amountOfProjects: Int get() = _amountOfProjects.value
+
+    init {
+        launchCatching {
+            getRecentProjects().collect { projects ->
+                _amountOfProjects.value = projects.size
+                _projects.value = ProjectPickerUiState.Success(projects)
+            }
+        }
+    }
+
+    fun addProject(project: Project) {
+        launchCatching {
+            addRecentProject.invoke(project)
+        }
+    }
+}