Now launch game process no longer blocking main thread.

constant.py

@@ -1,6 +1,8 @@
 LAUNCHER_VERSION = "0.0.4-alpha"
 LAUNCHER_NAME = "TestLauncher (Aka TapLauncher)"
+LAUNCHER_DIR_NAME = "TestLauncher"
 MAIN_REPO_URL = "https://repo.weispace.net/wei/Launcher/"
+
 CLIENT_ID = "30cbb657-edab-4d06-9fb7-cf5734a40088"
 MICROSOFT_VERIFY_ENDPOINT = "https://www.microsoft.com/link"
 LAUNCHER_USER_AGENT = f"{LAUNCHER_NAME}/{LAUNCHER_VERSION} (Powered by request module)"

core_lib/game/library_core.py

@@ -471,10 +471,17 @@ def check_natives_exists(manifest: dict, libraries_dir: Path, natives_dir: Path)
 
 
 def check_full_libraries_exists(manifest: dict, libraries_dir: Path, natives_dir: Path) -> bool:
-    if not check_natives_exists(manifest, libraries_dir, natives_dir) or not check_libraries_exists(manifest, libraries_dir):
-        return False
+    natives_exist = check_natives_exists(
+        manifest,
+        libraries_dir,
+        natives_dir,
+    )
+    missing_libraries = check_libraries_exists(
+        manifest,
+        libraries_dir,
+    )
 
-    return True
+    return natives_exist and not missing_libraries
 
 
 def generate_classpath(manifest: dict, libraries_dir: Path, core_file_path: Path):

main.py

@@ -18,12 +18,23 @@ import argparse
 import logging
 
 from PySide6.QtWidgets import QApplication, QMainWindow
+from platformdirs import (
+    user_data_dir,
+)
 
 from app import Launcher
+from constant import LAUNCHER_DIR_NAME
 
 from core_lib.log.default import DEFAULT_FORMAT, DEFAULT_DATE_FORMAT, get_colorful_handler
 from core_lib.qt import messagebox
 
+def show_error(message):
+    app = QApplication(sys.argv)
+    app.setApplicationName("Launcher Bootstrapper")
+    window = QMainWindow()
+    messagebox.error(window, "Error", message)
+    app.exit()
+
 def main():
     root_logger = logging.getLogger()
     logger = logging.getLogger("Launcher.Main")
@@ -32,10 +43,10 @@ def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("-m", "--mode", choices=['lightweight', 'full', 'choice'], default='choice',
                         help="Select a mode (lightweight for TUI, full for GUI, or choice to open a mode-selection window). "
-                             "TUI is not implemented yet.", required=False)
+                             "TUI is not implemented yet.", required=False, deprecated=True)
     parser.add_argument("-d", "--debug", action="store_true",
                         help="Enable debug mode", default=False)
-    parser.add_argument("-wd", "--work-dir", default=os.getcwd(), help="Work directory")
+    parser.add_argument("-wd", "--work-dir", default=None, help="Work directory")
 
     args, unknown = parser.parse_known_args()
     for arg in unknown:
@@ -43,21 +54,31 @@ def main():
 
     debug = args.debug
 
-    # check workdir
-    if not os.path.exists(args.work_dir) or not os.path.isdir(args.work_dir):
-        app = QApplication(sys.argv)
-        app.setApplicationName("Launcher Bootstrapper")
-        window = QMainWindow()
-        messagebox.error(window, "Error", f"Specified work directory \"{args.work_dir}\" does not exist or"
-                                      " is not a directory.")
-        logger.error("Work directory '%s' does not exist. Exiting..." % args.work_dir)
-        app.exit()
+    work_dir = args.work_dir
+
+    if work_dir is None:
+        if debug:
+            # Use working directory if launcher is in debug mode
+            work_dir = os.getcwd()
+        else:
+            try:
+                # Use user application data directory
+                work_dir = user_data_dir(LAUNCHER_DIR_NAME, appauthor=False)
+                os.makedirs(work_dir, exist_ok=True)
+            except Exception as e:
+                logger.warning("Failed to get application directory: %s", e)
+                show_error("Unable to get application directory. Try specifying 'work_dir' argument.")
+                sys.exit(-1)
+    else:
+        # check workdir
+        logger.error("Work directory '%s' does not exist." % work_dir)
+        show_error(f"Specified work directory \"{work_dir}\" does not exist or is not a directory.")
         sys.exit(-1)
 
     if os.getcwd() != args.work_dir:
-        os.chdir(args.work_dir)
+        os.chdir(work_dir)
 
-    logger.info("Current working directory is {}".format(args.work_dir))
+    logger.info("Current working directory is {}".format(work_dir))
 
     # Init lib
     level = logging.DEBUG if debug else logging.INFO

manager/game.py

@@ -1,17 +1,20 @@
 import json
 import os
 import subprocess
+import threading
 import time
 import traceback
+import types
 from collections.abc import Callable
 from dataclasses import dataclass, field
 from pathlib import Path
+from threading import Thread
+from typing import Literal
 from uuid import uuid4
-from PySide6.QtCore import QObject
-from PySide6.QtWidgets import QInputDialog
+from PySide6.QtCore import QObject, Signal
 
 from constant import CLIENT_ID, LAUNCHER_VERSION
-from core_lib.common.common import FileObject
+from core_lib.common.common import FileObject, download_multiple_files
 from core_lib.common.exception import VersionManifestFetchException, VersionManifestSaveException, \
     NoSpecifiedVersionKeyException
 from core_lib.game.argument import ArgumentMappings, generate_launch_command
@@ -24,8 +27,9 @@ from core_lib.game.version_info import fetch_and_save_version_manifest, get_spec
 from core_lib.runtime.java import find_java_installations
 from manager.account import AccountManager, LaunchAccount
 from manager.profile import LaunchProfile
-from manager.widgets import SelectPathRequest, AskForRequest
+from manager.widgets import SelectPathRequest, AskForRequest, SignalTransferItem
 
+MAX_DOWNLOAD_ATTEMPTS = 3
 
 class ManifestManager:
     def __init__(self, app):
@@ -226,7 +230,7 @@ class ManifestManager:
         version_id: str
         client_version_id: str
 
-    def resolve_launch_manifest(self, version_id: str, visited: set[str] | None = None) -> ResolvedVersionManifest | None:
+    def resolve_manifest(self, version_id: str, visited: set[str] | None = None) -> ResolvedVersionManifest | None:
         visited = set() if visited is None else visited
 
         if version_id in visited:
@@ -259,7 +263,7 @@ class ManifestManager:
             )
 
         # Get inherits if needed
-        parent = self.resolve_launch_manifest(parent_id, visited)
+        parent = self.resolve_manifest(parent_id, visited)
 
         if parent is None:
             return None
@@ -396,6 +400,251 @@ class JavaManager:
 
         return None
 
+class GameFileDownloadRequest(SignalTransferItem):
+    def __init__(self, job_name: Literal["download_client", "download_libraries", "download_assets"],
+                 args: tuple):
+        SignalTransferItem.__init__(self)
+        self.job_name: str = job_name
+        self.args: tuple = args
+
+class GameFileManager:
+    def __init__(self, app, manifest_manager: ManifestManager):
+        self.app = app
+        self.widget_mgr = app.widget_manager
+        self.manifest_mgr = manifest_manager
+        self.jobs = {
+            "download_client": self.download_client,
+            "download_libraries": self.download_libraries,
+            "download_assets": self.download_assets,
+        }
+
+    def get_manifest(self, target_version: str,
+                     manifest: dict | None, failed_message: str,
+                     vanilla: bool=False) -> dict | None:
+        if manifest is None:
+            # Version manifest
+            if not vanilla:
+                resolved = self.manifest_mgr.resolve_manifest(target_version)
+            else:
+                resolved = self.manifest_mgr.get_cached_version_manifest(target_version)
+
+            if resolved is None:
+                self.widget_mgr.signal.show_error_message.emit(
+                    failed_message,
+                )
+                return None
+
+            if isinstance(resolved, self.manifest_mgr.ResolvedVersionManifest):
+                manifest = resolved.manifest
+            else:
+                manifest = resolved
+
+        return manifest
+
+    def download_client(self, target_version: str, core_file_path, manifest: dict | None=None) -> bool:
+        """
+        Download client
+        :param target_version: THIS should be the vanilla version id!
+        :param core_file_path:
+        :param manifest:
+        :return:
+        """
+        manifest = self.get_manifest(target_version, manifest,
+                                     "Unable to download client for version {}, failed to fetch version manifest".format(target_version),
+                                     vanilla=True)
+
+        if manifest is None:
+            return False
+
+        callback, task_id = self.manifest_mgr.create_download_progress_callback(
+            "Downloading dependencies..."
+        )
+
+        try:
+            download_core_file(manifest, core_file_path,
+                               raise_for_null_hash=True,
+                               progress_callback=callback)
+        except Exception as e:
+            self.widget_mgr.download_signal.failed.emit(task_id, str(e))
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to download client for version {}".format(target_version)
+            )
+            return False
+        else:
+            self.widget_mgr.download_signal.finished.emit(task_id)
+
+        return True
+
+    def download_libraries(self, target_version: str, libraries_dir: Path, natives_dir: Path, manifest: dict | None=None) -> bool:
+        manifest = self.get_manifest(target_version, manifest,
+                                     "Unable to download dependencies for version {}, failed to fetch version manifest.".format(
+                                         target_version)
+                                     )
+        if manifest is None:
+            return False
+
+
+        callback, task_id = self.manifest_mgr.create_download_progress_callback(
+            "Downloading dependencies..."
+        )
+
+        try:
+            download_full_libraries(manifest, libraries_dir, natives_dir,
+                                    progress_callback=callback,
+                                    redownload_callback=self.redownload_files)
+        except Exception as e:
+            self.widget_mgr.download_signal.failed.emit(task_id, str(e))
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to download dependencies for version {}".format(target_version)
+            )
+            return False
+        else:
+            self.widget_mgr.download_signal.finished.emit(task_id)
+
+        return True
+
+    def download_assets(self, target_version: str, assets_dir: Path, manifest: dict | None = None,
+                        allow_missing: bool = True) -> bool:
+        """
+        Download assets
+        :param target_version:
+        :param assets_dir:
+        :param manifest:
+        :param allow_missing:
+        :return:
+        """
+        manifest = self.get_manifest(target_version, manifest,
+                                     "Unable to download assets for version {}, failed to fetch version manifest.".format(target_version))
+
+        if manifest is None:
+            return False
+
+        callback, task_id = self.manifest_mgr.create_download_progress_callback(
+            "Downloading assets"
+        )
+
+        try:
+            fails = download_assets(
+                manifest,
+                assets_dir,
+                no_hash_check=True,
+                progress_callback=callback,
+                launcher_root=self.app.work_dir,
+            )
+
+            result, fails = self.redownload_files(fails)
+
+            if not result:
+                if allow_missing:
+                    self.widget_mgr.signal.show_warning_message.emit(
+                        "Some assets could not be downloaded. They are not required to launch the game,"
+                        " but missing assets may cause texture issues while you play."
+                        " (Allow missing assets flag is enabled)"
+                    )
+                else:
+                    self.widget_mgr.signal.show_error_message.emit(
+                        "Some assets could not be downloaded. They are not required to launch the game,"
+                        " but missing assets may cause texture issues while you play."
+                        " Try relaunching to download them automatically."
+                    )
+                    self.widget_mgr.download_signal.failed.emit(task_id, "Some assets could not be downloaded.")
+                    return False
+        except Exception as e:
+            self.widget_mgr.download_signal.failed.emit(task_id, str(e))
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to download assets for version {}".format(target_version)
+            )
+            return False
+        else:
+            self.widget_mgr.download_signal.finished.emit(task_id)
+
+        return True
+
+    def start_task(self, request: GameFileDownloadRequest) -> Thread:
+        job_name = request.job_name
+        args = request.args
+
+        # Check target job function is existing
+        if not job_name in self.jobs:
+            raise NotImplementedError("Job {} not implemented".format(job_name))
+
+        def worker():
+            try:
+                result = self.jobs[request.job_name](*request.args)
+                request.result_queue.put(result)
+            except Exception as exc:
+                self.app.logger.exception("Game file task failed")
+                request.result_queue.put(exc)
+            finally:
+                request.wait_event.set()
+
+        thread = Thread(target=worker, daemon=True)
+        thread.start()
+
+        return thread
+
+    def redownload_files(self, files: list[FileObject]) -> tuple[bool, list[FileObject]]:
+        if not files:
+            return True, []
+
+        message = (
+                "Some files failed to download.\n"
+                "Would you like to retry downloading them?\n\n"
+        )
+
+        request = AskForRequest("Redownload", message)
+        request.details = "\n".join(file.posix_path for file in files)
+
+        self.widget_mgr.signal.askyesno.emit(request)
+
+        if not request.wait(60):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timed out while waiting for confirmation. Please try again."
+            )
+            return False, files
+
+        result = request.result()
+
+        if not result:
+            return False, files
+
+        # copy
+        pending = list(files)
+
+        callback, task_id = self.manifest_mgr.create_download_progress_callback(f"Redownloading {len(files)} files.")
+
+        for retry_time in range(1, MAX_DOWNLOAD_ATTEMPTS + 1):
+            if not pending:
+                return True, []
+
+            self.widget_mgr.download_signal.log.emit(f"Attempt {retry_time}/{MAX_DOWNLOAD_ATTEMPTS}")
+
+            fails, successes = download_multiple_files(pending,
+                                                       progress_callback=callback)
+
+            for file in successes:
+                self.widget_mgr.download_signal.log.emit(f"Downloaded {file.posix_path}.")
+
+            if fails:
+                pending = fails
+            else:
+                self.widget_mgr.download_signal.finished.emit(task_id)
+                pending = []
+
+        if not pending:
+            return True, []
+
+        failed_list = "\n".join(file.posix_path for file in pending)
+        self.widget_mgr.download_signal.failed.emit(
+            task_id,
+            f"{len(pending)} files still failed after retries.",
+        )
+        self.app.logger.warning(
+            "Unable to download these files:\n{}".format(failed_list)
+        )
+
+        return False, pending
+
 @dataclass
 class LaunchResult:
     process: subprocess.Popen | None = None
@@ -414,13 +663,19 @@ class LaunchResult:
         self.warnings.append(message)
 
 class LaunchManager:
-    def __init__(self, app, manifest_manager: ManifestManager, java_manager: JavaManager, account_manager: AccountManager):
+    def __init__(self, app, manifest_manager: ManifestManager, java_manager: JavaManager, game_file_manager: GameFileManager,
+                 account_manager: AccountManager):
         self.app = app
         self.manifest_mgr = manifest_manager
         self.widget_mgr = app.widget_manager
         self.java_mgr = java_manager
+        self.game_file_mgr = game_file_manager
         self.account_mgr = account_manager
         self.launched_profiles: list[str] = []
+        self.signal = self.LaunchSignal()
+
+    class LaunchSignal(QObject):
+        finished = Signal(object, object)  # LaunchProfile, LaunchResult
 
     def launch(self, profile: LaunchProfile) -> LaunchResult:
         result = LaunchResult()
@@ -428,8 +683,11 @@ class LaunchManager:
             version_id = profile.version_id
             version_id = self.manifest_mgr.resolve_version_alias(version_id)
 
+            if version_id is None:
+                return result.fail("Unable to resolve the correct version id of the profile.")
+
             # Version manifest
-            resolved = self.manifest_mgr.resolve_launch_manifest(version_id)
+            resolved = self.manifest_mgr.resolve_manifest(version_id)
 
             if resolved is None:
                 return result.fail(
@@ -461,11 +719,37 @@ class LaunchManager:
 
             # Check client
             if not core_file_path.exists():
-                download_core_file(version_manifest, core_file_path, raise_for_null_hash=True)
+                request = GameFileDownloadRequest(
+                    "download_client",
+                    (client_version_id, core_file_path, version_manifest,)
+                )
+                self.game_file_mgr.start_task(request)
+
+                request.wait(None)
+
+                client_result = request.result()
+
+                if client_result is not True:
+                    return result.fail(
+                        f"Unable to launch game. Client download failed."
+                    )
 
             # Libraries
             if not check_full_libraries_exists(version_manifest, libraries_dir, natives_dir):
-                download_full_libraries(version_manifest, libraries_dir, natives_dir)
+                request = GameFileDownloadRequest(
+                    "download_libraries",
+                    (version_id, libraries_dir, natives_dir, version_manifest)
+                )
+                self.game_file_mgr.start_task(request)
+
+                request.wait(None)
+
+                lib_result = request.result()
+
+                if lib_result is not True:
+                    return result.fail(
+                        "Unable to launch game due to certain dependencies download failure."
+                    )
 
             current_account_id = self.account_mgr.get_current_account_id()
 
@@ -479,27 +763,20 @@ class LaunchManager:
             # Asset
             default_assets_dir = Path(self.app.work_dir, "assets")
             if not check_assets_exist(version_manifest, default_assets_dir, launcher_root=self.app.work_dir):
-                callback, task_id = self.manifest_mgr.create_download_progress_callback(
-                    "Downloading missing assets"
+                request = GameFileDownloadRequest(
+                    "download_assets",
+                    (version_id, default_assets_dir, version_manifest)
                 )
+                self.game_file_mgr.start_task(request)
 
-                try:
-                    download_assets(
-                        version_manifest,
-                        default_assets_dir,
-                        no_hash_check=True,
-                        progress_callback=callback,
-                        launcher_root=self.app.work_dir,
+                request.wait(None)
+
+                asset_result = request.result()
+
+                if asset_result is not True:
+                    return result.fail(
+                        "Unable to launch game due to certain assets download failure."
                     )
-                except Exception as e:
-                    self.widget_mgr.download_signal.failed.emit(task_id, str(e))
-                    result.add_warning(
-                        "Some assets could not be downloaded. They are not required to launch the game,"
-                        " but missing assets may cause texture issues while you play."
-                        " Try relaunching to download them automatically."
-                    )
-                else:
-                    self.widget_mgr.download_signal.finished.emit(task_id)
 
             assets_dir = find_correct_assets_dir(asset_id, default_assets_dir, self.app.work_dir)
 
@@ -602,6 +879,20 @@ class LaunchManager:
 
         return result
 
+    def start_launch_task(self, profile: LaunchProfile) -> Thread:
+        def worker():
+            result = self.launch(profile)
+            self.signal.finished.emit(profile, result)
+            return result
+
+        thread = threading.Thread(
+            target=worker,
+            name=f"launch-{profile.profile_id}",
+            daemon=True,
+        )
+        thread.start()
+        return thread
+
     def is_profile_running(self, profile_id):
         return profile_id in self.launched_profiles
 
@@ -623,4 +914,5 @@ class GameManager(QObject):
         self.widget_mgr = app.widget_manager
         self.manifest = ManifestManager(self.app)
         self.java = JavaManager(self.app)
-        self.launch = LaunchManager(self.app, self.manifest, self.java, self.account_manager)
+        self.game_file = GameFileManager(self.app, manifest_manager=self.manifest)
+        self.launch = LaunchManager(self.app, self.manifest, self.java, self.game_file, self.account_manager)

pages/launch_profile.py

@@ -1,13 +1,13 @@
 from pathlib import Path
 
-from PySide6.QtCore import Qt, Signal
+from PySide6.QtCore import Qt, Signal, Slot, QTimer
 from PySide6.QtGui import QIcon, QMouseEvent, QHideEvent, QPixmap, QPainter
 from PySide6.QtWidgets import (QWidget, QVBoxLayout, QLabel, QHBoxLayout, QPushButton, QScrollArea, QFrame,
                                QSizePolicy, QApplication)
 
-from manager.game import LaunchManager
+from manager.game import LaunchManager, LaunchResult
 from core_lib.game.version_info import LATEST_VERSION_ALIASES
-from manager.profile import ProfileSummary
+from manager.profile import ProfileSummary, LaunchProfile, ProfileManager
 from manager.widgets import AskForRequest, WidgetManager
 from pages.process_log import ProcessLogWindow
 
@@ -161,6 +161,9 @@ class ProfilePopup(QFrame):
         )
 
     def load_profiles(self, profiles: list[ProfileSummary]) -> None:
+        # Clean old profiles
+        self.clean_profiles()
+
         for profile in profiles:
             icon_path = profile.icon
 
@@ -176,6 +179,14 @@ class ProfilePopup(QFrame):
             item.set_icon(icon_path)
             self.content_layout.addWidget(item)
 
+    def clean_profiles(self) -> None:
+        while self.content_layout.count():
+            layout_item = self.content_layout.takeAt(0)
+            widget = layout_item.widget()
+
+            if widget is not None:
+                widget.hide()
+                widget.deleteLater()
 
     def hideEvent(self, event: QHideEvent) -> None:
         self.closed.emit()
@@ -187,7 +198,7 @@ class LaunchProfilePage(QWidget):
         super(LaunchProfilePage, self).__init__(parent)
         self.app = app
         self.widget_mgr: WidgetManager = app.widget_manager
-        self.profile_manager = app.profile_manager
+        self.profile_manager: ProfileManager = app.profile_manager
         self.game_manager = app.game_manager
         self.launch_manager: LaunchManager = self.game_manager.launch
         self.process_log_windows: list[ProcessLogWindow] = []
@@ -271,7 +282,15 @@ class LaunchProfilePage(QWidget):
 
         self.app.apply_qss(Path("profile.qss"), self.setStyleSheet)
 
-        self.load_profiles()
+        # Handle launch() result
+        self.launch_manager.signal.finished.connect(
+            self.launch_finished,
+            Qt.ConnectionType.QueuedConnection,
+        )
+
+        self.profile_manager.profiles_changed.connect(
+            self.load_profiles,
+        )
 
     class ProfileBackgroundFrame(QFrame):
         def __init__(self, image_path, parent=None):
@@ -294,6 +313,51 @@ class LaunchProfilePage(QWidget):
                 y = (self.height() - scaled.height()) // 2
                 painter.drawPixmap(x, y, scaled)
 
+    @Slot(object, object)
+    def launch_finished(self, launch_profile: LaunchProfile, result: LaunchResult) -> None:
+        """
+        Handle launch finished signal
+        :param launch_profile:
+        :param result:
+        :return:
+        """
+        if not result.success:
+            self.status_label.setText("Launch Failed")
+            self.widget_mgr.signal.show_error_message.emit(
+                f"Unable to launch profile "
+                f"{launch_profile.display_name}: "
+                f"{result.error_message}"
+            )
+            return
+
+        # Create log view
+        log_window = ProcessLogWindow(
+            result.process,
+            launch_profile.profile_id,
+            title=(
+                f"Minecraft Log - {launch_profile.display_name} "
+                f"({launch_profile.version_id})"
+            ),
+            parent=None,
+            finished_callback=self.launch_manager.profile_finished,
+        )
+
+        for warning in result.warnings:
+            log_window.append_message(
+                f"[launcher warning] {warning}"
+            )
+
+        self.process_log_windows.append(log_window)
+        log_window.show()
+
+        self.status_label.setText("Launched!")
+
+        # Cleanup for status label
+        timer = QTimer(self)
+        timer.setSingleShot(True)
+        timer.timeout.connect(lambda: self.status_label.setText("Select a profile to launch"))
+        timer.start(3000)
+
     def load_profiles(self):
         profiles: list[ProfileSummary] = self.profile_manager.list_profiles()
         self.profile_popup.load_profiles(profiles)
@@ -363,54 +427,39 @@ class LaunchProfilePage(QWidget):
         self.profile_button.set_popup_open(False)
 
     def launch_profile(self) -> None:
-        try:
-            profile_id = self.profile_button.property("profile_id")
-            self.status_label.setText("Preparing to launch...")
-            launch_profile = self.app.profile_manager.get_launch_profile(profile_id)
+        profile_id = self.profile_button.property("profile_id")
 
-            if launch_profile is None:
-                self.status_label.setText("Unable to load the selected profile.")
+        if profile_id is None:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "There is no profile is selected."
+                " Please create one first."
+            )
+            return
+
+        self.status_label.setText("Preparing to launch...")
+        launch_profile = self.app.profile_manager.get_launch_profile(profile_id)
+
+        if launch_profile is None:
+            self.status_label.setText("Unable to load the selected profile.")
+            return
+
+        if self.launch_manager.is_profile_running(launch_profile.profile_id):
+            request = AskForRequest(
+                "Launch Request",
+                "Target profile {} is running. Are you sure you want to launch it again?".format(
+                    launch_profile.display_name
+                ),
+            )
+            self.widget_mgr.signal.askyesno.emit(request)
+
+            if not request.wait(60):
+                self.widget_mgr.signal.show_error_message.emit(
+                    "Time out waiting for request for launch."
+                )
                 return
 
-            if self.launch_manager.is_profile_running(launch_profile.profile_id):
-                request = AskForRequest(
-                    "Launch Request",
-                    "Target profile {} is running. Are you sure you want to launch it again?".format(
-                        launch_profile.display_name
-                    ),
-                )
-                self.widget_mgr.signal.askyesno.emit(request)
+            if not request.result() is True:
+                return
 
-                if not request.wait(60):
-                    self.widget_mgr.signal.show_error_message.emit(
-                        "Time out waiting for request for launch."
-                    )
-                    return
-
-                if not request.result() is True:
-                    return
-
-            result = self.launch_manager.launch(launch_profile)
-
-            if result.success:
-                self.status_label.setText("Launched!")
-                log_window = ProcessLogWindow(
-                    result.process,
-                    launch_profile.profile_id,
-                    title=f"Minecraft Log - {launch_profile.display_name} ({launch_profile.version_id})",
-                    parent=None,
-                    finished_callback=self.launch_manager.profile_finished,
-                )
-                for warning in result.warnings:
-                    log_window.append_message(f"[launcher warning] {warning}")
-                self.process_log_windows.append(log_window)
-                log_window.show()
-            else:
-                self.widget_mgr.signal.show_error_message.emit(
-                    "Unable to launch profile {}: {}".format(
-                        launch_profile.display_name,
-                        result.error_message,
-                    )
-                )
-        finally:
-            self.status_label.setText("Select a profile to launch")
+        self.launch_manager.start_launch_task(launch_profile)
+        # The log view window creation process has been moved to the method self.launch_finished, move to there!