add: support change download provider in install wizard

refactor: ensure that VersionLists fetch original download URL
alt: navigate to game version list when no versions exist
2020-04-12 00:41:12 +08:00 · 2020-04-12 00:41:12 +08:00 · 2020-04-12 00:41:03 +08:00 · 2020-04-12 00:40:53 +08:00 · 2020-04-08 21:18:25 +08:00 · 2020-04-08 21:17:21 +08:00
67 changed files with 624 additions and 433 deletions
@@ -17,19 +17,14 @@
 */
 package org.jackhuang.hmcl.setting;

-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.ObjectBinding;
-import javafx.beans.value.ObservableObjectValue;
+import org.jackhuang.hmcl.download.AdaptedDownloadProvider;
 import org.jackhuang.hmcl.download.BMCLAPIDownloadProvider;
 import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.MojangDownloadProvider;
-import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.ui.FXUtils;

-import java.util.List;
 import java.util.Map;
 import java.util.Optional;
-import java.util.concurrent.ThreadPoolExecutor;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;

@@ -40,6 +35,8 @@ import static org.jackhuang.hmcl.util.Pair.pair;
 public final class DownloadProviders {
    private DownloadProviders() {}

+    private static final AdaptedDownloadProvider DOWNLOAD_PROVIDER = new AdaptedDownloadProvider();
+
    public static final Map<String, DownloadProvider> providersById = mapOf(
            pair("mojang", new MojangDownloadProvider()),
            pair("bmclapi", new BMCLAPIDownloadProvider("https://bmclapi2.bangbang93.com")),
@@ -47,32 +44,44 @@ public final class DownloadProviders {

    public static final String DEFAULT_PROVIDER_ID = "mcbbs";

-    private static ObjectBinding<DownloadProvider> downloadProviderProperty;
-
    static void init() {
-        downloadProviderProperty = Bindings.createObjectBinding(
-                () -> Optional.ofNullable(providersById.get(config().getDownloadType()))
-                        .orElse(providersById.get(DEFAULT_PROVIDER_ID)),
-                config().downloadTypeProperty());
+        FXUtils.onChangeAndOperate(config().downloadTypeProperty(), downloadType -> {
+            DownloadProvider primary = Optional.ofNullable(providersById.get(config().getDownloadType()))
+                    .orElse(providersById.get(DEFAULT_PROVIDER_ID));
+            DOWNLOAD_PROVIDER.setDownloadProviderCandidates(
+                    Stream.concat(
+                            Stream.of(primary),
+                            providersById.values().stream().filter(x -> x != primary)
+                    ).collect(Collectors.toList())
+            );
+        });
+    }
+
+    public static String getPrimaryDownloadProviderId() {
+        String downloadType = config().getDownloadType();
+        if (providersById.containsKey(downloadType))
+            return downloadType;
+        else
+            return DEFAULT_PROVIDER_ID;
+    }
+
+    public static AdaptedDownloadProvider getDownloadProviderByPrimaryId(String primaryId) {
+        AdaptedDownloadProvider adaptedDownloadProvider = new AdaptedDownloadProvider();
+        DownloadProvider primary = Optional.ofNullable(providersById.get(primaryId))
+                .orElse(providersById.get(DEFAULT_PROVIDER_ID));
+        adaptedDownloadProvider.setDownloadProviderCandidates(
+                Stream.concat(
+                        Stream.of(primary),
+                        providersById.values().stream().filter(x -> x != primary)
+                ).collect(Collectors.toList())
+        );
+        return adaptedDownloadProvider;
    }

    /**
     * Get current primary preferred download provider
     */
-    public static DownloadProvider getDownloadProvider() {
-        return downloadProviderProperty.get();
-    }
-
-    /**
-     * Preferred download providers have the primary one first, the official one next.
-     * @return the preferred download providers
-     */
-    public static List<DownloadProvider> getPreferredDownloadProviders() {
-        DownloadProvider provider = getDownloadProvider();
-        return Stream.concat(Stream.of(provider), providersById.values().stream().filter(x -> x != provider)).collect(Collectors.toList());
-    }
-
-    public static ObservableObjectValue<DownloadProvider> downloadProviderProperty() {
-        return downloadProviderProperty;
+    public static AdaptedDownloadProvider getDownloadProvider() {
+        return DOWNLOAD_PROVIDER;
    }
 }
@@ -24,6 +24,7 @@ import javafx.beans.InvalidationListener;
 import javafx.beans.Observable;
 import javafx.beans.property.*;
 import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.event.EventBus;
 import org.jackhuang.hmcl.event.EventPriority;
 import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
@@ -162,7 +163,11 @@ public final class Profile implements Observable {
    }

    public DefaultDependencyManager getDependency() {
-        return new DefaultDependencyManager(repository, DownloadProviders.getDownloadProvider(), DownloadProviders.getPreferredDownloadProviders(), HMCLCacheRepository.REPOSITORY);
+        return getDependency(DownloadProviders.getDownloadProvider());
+    }
+
+    public DefaultDependencyManager getDependency(DownloadProvider downloadProvider) {
+        return new DefaultDependencyManager(repository, downloadProvider, HMCLCacheRepository.REPOSITORY);
    }

    public VersionSetting getVersionSetting(String id) {
@@ -110,7 +110,9 @@ public final class Controllers {

        Task.runAsync(JavaVersion::initialize).start();

-        scene = new Scene(decorator.getDecorator(), 800, 480);
+        scene = new Scene(decorator.getDecorator(), 802, 482);
+        stage.setMinHeight(482);
+        stage.setMinWidth(802);
        decorator.getDecorator().prefWidthProperty().bind(scene.widthProperty());
        decorator.getDecorator().prefHeightProperty().bind(scene.heightProperty());
        scene.getStylesheets().setAll(config().getTheme().getStylesheets());
@@ -18,7 +18,10 @@
 package org.jackhuang.hmcl.ui;

 import com.jfoenix.controls.*;
-import javafx.animation.*;
+import javafx.animation.Interpolator;
+import javafx.animation.KeyFrame;
+import javafx.animation.KeyValue;
+import javafx.animation.Timeline;
 import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
 import javafx.beans.property.Property;
@@ -26,7 +29,6 @@ import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.beans.value.WeakChangeListener;
 import javafx.beans.value.WritableValue;
-import javafx.event.EventHandler;
 import javafx.fxml.FXMLLoader;
 import javafx.geometry.Insets;
 import javafx.geometry.Pos;
@@ -34,8 +36,6 @@ import javafx.scene.Node;
 import javafx.scene.control.*;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
-import javafx.scene.input.MouseEvent;
-import javafx.scene.input.ScrollEvent;
 import javafx.scene.input.TransferMode;
 import javafx.scene.layout.Region;
 import javafx.scene.layout.StackPane;
@@ -43,7 +43,6 @@ import javafx.scene.shape.Rectangle;
 import javafx.util.Callback;
 import javafx.util.Duration;
 import javafx.util.StringConverter;
-import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.ResourceNotFoundError;
 import org.jackhuang.hmcl.util.i18n.I18n;
@@ -61,12 +60,9 @@ import java.lang.reflect.Method;
 import java.net.URI;
 import java.util.List;
 import java.util.Objects;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.BooleanSupplier;
 import java.util.function.Consumer;
 import java.util.function.Function;
-import java.util.function.Supplier;
 import java.util.logging.Level;
 import java.util.stream.Collectors;

@@ -443,72 +439,6 @@ public final class FXUtils {
        comboBox.getSelectionModel().selectedIndexProperty().removeListener(listener);
    }

-    public static void smoothScrolling(ListView<?> listView) {
-        listView.skinProperty().addListener(o -> {
-            ScrollBar bar = (ScrollBar) listView.lookup(".scroll-bar");
-            Node virtualFlow = listView.lookup(".virtual-flow");
-            double[] frictions = new double[]{0.99, 0.1, 0.05, 0.04, 0.03, 0.02, 0.01, 0.04, 0.01, 0.008, 0.008, 0.008, 0.008, 0.0006, 0.0005, 0.00003, 0.00001};
-            double[] pushes = new double[]{1};
-            double[] derivatives = new double[frictions.length];
-
-            Timeline timeline = new Timeline();
-            bar.addEventHandler(MouseEvent.DRAG_DETECTED, e -> timeline.stop());
-
-            EventHandler<ScrollEvent> scrollEventHandler = event -> {
-                if (event.getEventType() == ScrollEvent.SCROLL) {
-                    int direction = event.getDeltaY() > 0 ? -1 : 1;
-                    for (int i = 0; i < pushes.length; ++i)
-                        derivatives[i] += direction * pushes[i];
-                    if (timeline.getStatus() == Animation.Status.STOPPED)
-                        timeline.play();
-                    event.consume();
-                }
-            };
-
-            bar.addEventHandler(ScrollEvent.ANY, scrollEventHandler);
-            virtualFlow.setOnScroll(scrollEventHandler);
-
-            timeline.getKeyFrames().add(new KeyFrame(Duration.millis(3), event -> {
-                for (int i = 0; i < derivatives.length; ++i)
-                    derivatives[i] *= frictions[i];
-                for (int i = 1; i < derivatives.length; ++i)
-                    derivatives[i] += derivatives[i - 1];
-                double dy = derivatives[derivatives.length - 1];
-                double height = listView.getLayoutBounds().getHeight();
-                bar.setValue(Lang.clamp(0, bar.getValue() + dy / height, 1));
-                if (Math.abs(dy) < 0.001)
-                    timeline.stop();
-                listView.requestLayout();
-            }));
-            timeline.setCycleCount(Animation.INDEFINITE);
-        });
-    }
-
-    public static <T> T runInUIThread(Supplier<T> supplier) {
-        if (javafx.application.Platform.isFxApplicationThread()) {
-            return supplier.get();
-        } else {
-            CountDownLatch doneLatch = new CountDownLatch(1);
-            AtomicReference<T> reference = new AtomicReference<>();
-            Platform.runLater(() -> {
-                try {
-                    reference.set(supplier.get());
-                } finally {
-                    doneLatch.countDown();
-                }
-
-            });
-
-            try {
-                doneLatch.await();
-            } catch (InterruptedException var3) {
-                Thread.currentThread().interrupt();
-            }
-
-            return reference.get();
-        }
-    }
-
    /**
     * Suppress IllegalArgumentException since the url is supposed to be correct definitely.
     * @param url the url of image. The image resource should be a file within the jar.
@@ -41,8 +41,7 @@ import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 public class InstallerItem extends BorderPane {

    public InstallerItem(String libraryId, String libraryVersion, @Nullable Runnable upgrade, @Nullable Consumer<InstallerItem> deleteCallback) {
-        getStyleClass().add("two-line-list-item");
-        setStyle("-fx-background-radius: 2; -fx-background-color: white; -fx-padding: 8;");
+        getStyleClass().addAll("two-line-list-item", "card");
        JFXDepthManager.setDepth(this, 1);

        String[] urls = new String[]{"/assets/img/grass.png", "/assets/img/fabric.png", "/assets/img/forge.png", "/assets/img/chicken.png", "/assets/img/command.png"};
@@ -58,7 +57,7 @@ public class InstallerItem extends BorderPane {
                if (libraryVersion == null) {
                    label.setText(i18n("install.installer.not_installed", i18n("install.installer." + libraryId)));
                } else {
-                    label.setText(i18n("install.installer.version", i18n("install.installer." + libraryId)) + ": " + libraryVersion);
+                    label.setText(i18n("install.installer.version", i18n("install.installer." + libraryId), libraryVersion));
                }
                setCenter(label);
                regularLibrary = true;
@@ -40,7 +40,6 @@ public class ListPageSkin extends SkinBase<ListPage<?>> {
        spinnerPane.getStyleClass().add("large-spinner-pane");
        Pane placeholder = new Pane();
        VBox list = new VBox();
-        spinnerPane.getStyleClass().add("content-background");

        StackPane contentPane = new StackPane();
        {
@@ -37,7 +37,7 @@ public final class SVG {
        SVGPath path = new SVGPath();
        path.getStyleClass().add("svg");
        path.setContent(d);
-        path.fillProperty().bind(fill);
+        if (fill != null) path.fillProperty().bind(fill);

        if (width < 0 || height < 0) {
            StackPane pane = new StackPane(path);
@@ -102,7 +102,7 @@ public class AccountListItemSkin extends SkinBase<AccountListItem> {
        root.setRight(right);

        root.getStyleClass().add("card");
-        root.setPadding(new Insets(8, 8, 8, 0));
+        root.setStyle("-fx-padding: 8 8 8 0;");
        JFXDepthManager.setDepth(root, 1);

        getChildren().setAll(root);
@@ -36,8 +36,7 @@ public abstract class FloatListCell<T> extends ListCell<T> {

        pane.getStyleClass().add("card");
        pane.setCursor(Cursor.HAND);
-        pane.setPadding(new Insets(8));
-        setPadding(new Insets(5));
+        setPadding(new Insets(9, 9, 0, 9));
        JFXDepthManager.setDepth(pane, 1);

        FXUtils.onChangeAndOperate(selectedProperty(), selected -> {
@@ -80,7 +80,6 @@ public class DecoratorController {
        decorator.setOnCloseButtonAction(Launcher::stopApplication);

        navigator = new Navigator();
-        navigator.setOnNavigating(this::onNavigating);
        navigator.setOnNavigated(this::onNavigated);
        navigator.init(mainPage);

@@ -30,6 +30,7 @@ import javafx.scene.Node;
 import javafx.scene.control.Label;
 import javafx.scene.control.SkinBase;
 import javafx.scene.input.MouseEvent;
+import javafx.scene.layout.AnchorPane;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
@@ -49,7 +50,7 @@ public class DecoratorSkin extends SkinBase<Decorator> {
    private static final SVGGlyph minus = Lang.apply(new SVGGlyph(0, "MINUS", "M804.571 420.571v109.714q0 22.857-16 38.857t-38.857 16h-694.857q-22.857 0-38.857-16t-16-38.857v-109.714q0-22.857 16-38.857t38.857-16h694.857q22.857 0 38.857 16t16 38.857z", Color.WHITE),
        glyph -> { glyph.setSize(12, 2); glyph.setTranslateY(4); });

-    private final BorderPane root;
+    private final StackPane parent;
    private final StackPane titleContainer;
    private final Stage primaryStage;
    private final TransitionPane navBarPane;
@@ -72,14 +73,15 @@ public class DecoratorSkin extends SkinBase<Decorator> {
        minus.fillProperty().bind(Theme.foregroundFillBinding());

        Decorator skinnable = getSkinnable();
-        StackPane parent = new StackPane();
+        parent = new StackPane();
+        parent.getStyleClass().add("window");
        parent.backgroundProperty().bind(skinnable.backgroundProperty());
        parent.setPickOnBounds(false);
        parent.prefHeightProperty().bind(control.prefHeightProperty());
        parent.prefWidthProperty().bind(control.prefWidthProperty());
-
-        root = new BorderPane();
-        root.getStyleClass().addAll("jfx-decorator", "resize-border");
+        parent.setOnMouseReleased(this::onMouseReleased);
+        parent.setOnMouseDragged(this::onMouseDragged);
+        parent.setOnMouseMoved(this::onMouseMoved);

        // animation layer at bottom
        {
@@ -89,12 +91,17 @@ public class DecoratorSkin extends SkinBase<Decorator> {
            leftPane.getStyleClass().add("jfx-decorator-drawer");
            layer.getChildren().setAll(leftPane);
            parent.getChildren().add(layer);
-            parent.getChildren().add(root);
        }

+        StackPane wrapper = new StackPane();
+        BorderPane root = new BorderPane();
+        root.getStyleClass().addAll("jfx-decorator");
+        wrapper.getChildren().setAll(root);
+        skinnable.setDrawerWrapper(wrapper);
+        parent.getChildren().add(wrapper);
+
        // center node with a animation layer at bottom, a container layer at middle and a "welcome" layer at top.
        StackPane container = new StackPane();
-        skinnable.setDrawerWrapper(container);
        FXUtils.setOverflowHidden(container);

        // content layer at middle
@@ -128,11 +135,7 @@ public class DecoratorSkin extends SkinBase<Decorator> {
        root.setCenter(container);

        titleContainer = new StackPane();
-        root.setOnMouseReleased(this::onMouseReleased);
-        root.setOnMouseDragged(this::onMouseDragged);
-        root.setOnMouseMoved(this::onMouseMoved);
        titleContainer.setPickOnBounds(false);
-        titleContainer.setMinHeight(40);
        titleContainer.getStyleClass().addAll("jfx-tool-bar");
        titleContainer.addEventHandler(MouseEvent.MOUSE_ENTERED, e -> allowMove = true);
        titleContainer.addEventHandler(MouseEvent.MOUSE_EXITED, e -> {
@@ -151,6 +154,8 @@ public class DecoratorSkin extends SkinBase<Decorator> {
        rectangle.widthProperty().bind(titleContainer.widthProperty());
        rectangle.heightProperty().bind(titleContainer.heightProperty().add(100));
        titleContainer.setClip(rectangle);
+
+        Rectangle buttonsContainerPlaceHolder = new Rectangle();
        {
            navBarPane = new TransitionPane();
            FXUtils.onChangeAndOperate(skinnable.stateProperty(), s -> {
@@ -170,11 +175,14 @@ public class DecoratorSkin extends SkinBase<Decorator> {
                        s.isAnimate() ? Duration.millis(160) : null, leftPane.prefWidthProperty(), null, s.getLeftPaneWidth(), FXUtils.SINE);
            });
            titleBar.setCenter(navBarPane);
+            titleBar.setRight(buttonsContainerPlaceHolder);
+        }
+        root.setTop(titleContainer);

+        {
            HBox buttonsContainer = new HBox();
-            buttonsContainer.setStyle("-fx-background-color: transparent;");
-            buttonsContainer.setAlignment(Pos.CENTER_RIGHT);
-            buttonsContainer.setPadding(new Insets(4));
+            buttonsContainer.setAlignment(Pos.TOP_RIGHT);
+            buttonsContainer.setMaxHeight(40);
            {
                JFXButton btnMin = new JFXButton();
                StackPane pane = new StackPane(minus);
@@ -190,9 +198,14 @@ public class DecoratorSkin extends SkinBase<Decorator> {

                buttonsContainer.getChildren().setAll(btnMin, btnClose);
            }
-            titleBar.setRight(buttonsContainer);
+            AnchorPane layer = new AnchorPane();
+            layer.setPickOnBounds(false);
+            layer.getChildren().add(buttonsContainer);
+            AnchorPane.setTopAnchor(buttonsContainer, 0.0);
+            AnchorPane.setRightAnchor(buttonsContainer, 0.0);
+            buttonsContainerPlaceHolder.widthProperty().bind(buttonsContainer.widthProperty());
+            parent.getChildren().add(layer);
        }
-        root.setTop(titleContainer);

        getChildren().add(parent);
    }
@@ -277,19 +290,19 @@ public class DecoratorSkin extends SkinBase<Decorator> {
    }

    private boolean isRightEdge(double x, double y, Bounds boundsInParent) {
-        return x < root.getWidth() && x > root.getWidth() - root.snappedLeftInset();
+        return x < parent.getWidth() && x >= parent.getWidth() - parent.snappedLeftInset();
    }

    private boolean isTopEdge(double x, double y, Bounds boundsInParent) {
-        return y >= 0 && y < root.snappedLeftInset();
+        return y >= 0 && y <= parent.snappedTopInset();
    }

    private boolean isBottomEdge(double x, double y, Bounds boundsInParent) {
-        return y < root.getHeight() && y > root.getHeight() - root.snappedLeftInset();
+        return y < parent.getHeight() && y >= parent.getHeight() - parent.snappedLeftInset();
    }

    private boolean isLeftEdge(double x, double y, Bounds boundsInParent) {
-        return x >= 0 && x < root.snappedLeftInset();
+        return x >= 0 && x <= parent.snappedLeftInset();
    }

    private boolean setStageWidth(double width) {
@@ -325,48 +338,48 @@ public class DecoratorSkin extends SkinBase<Decorator> {
            updateInitMouseValues(mouseEvent);
            if (primaryStage.isResizable()) {
                double x = mouseEvent.getX(), y = mouseEvent.getY();
-                Bounds boundsInParent = root.getBoundsInParent();
-                if (root.getBorder() != null && root.getBorder().getStrokes().size() > 0) {
-                    double diagonalSize = root.snappedLeftInset() + 10;
+                Bounds boundsInParent = parent.getBoundsInParent();
+                if (parent.getBorder() != null && parent.getBorder().getStrokes().size() > 0) {
+                    double diagonalSize = parent.snappedLeftInset() + 10;
                    if (this.isRightEdge(x, y, boundsInParent)) {
                        if (y < diagonalSize) {
-                            root.setCursor(Cursor.NE_RESIZE);
-                        } else if (y > root.getHeight() - diagonalSize) {
-                            root.setCursor(Cursor.SE_RESIZE);
+                            parent.setCursor(Cursor.NE_RESIZE);
+                        } else if (y > parent.getHeight() - diagonalSize) {
+                            parent.setCursor(Cursor.SE_RESIZE);
                        } else {
-                            root.setCursor(Cursor.E_RESIZE);
+                            parent.setCursor(Cursor.E_RESIZE);
                        }
                    } else if (this.isLeftEdge(x, y, boundsInParent)) {
                        if (y < diagonalSize) {
-                            root.setCursor(Cursor.NW_RESIZE);
-                        } else if (y > root.getHeight() - diagonalSize) {
-                            root.setCursor(Cursor.SW_RESIZE);
+                            parent.setCursor(Cursor.NW_RESIZE);
+                        } else if (y > parent.getHeight() - diagonalSize) {
+                            parent.setCursor(Cursor.SW_RESIZE);
                        } else {
-                            root.setCursor(Cursor.W_RESIZE);
+                            parent.setCursor(Cursor.W_RESIZE);
                        }
                    } else if (this.isTopEdge(x, y, boundsInParent)) {
                        if (x < diagonalSize) {
-                            root.setCursor(Cursor.NW_RESIZE);
-                        } else if (x > root.getWidth() - diagonalSize) {
-                            root.setCursor(Cursor.NE_RESIZE);
+                            parent.setCursor(Cursor.NW_RESIZE);
+                        } else if (x > parent.getWidth() - diagonalSize) {
+                            parent.setCursor(Cursor.NE_RESIZE);
                        } else {
-                            root.setCursor(Cursor.N_RESIZE);
+                            parent.setCursor(Cursor.N_RESIZE);
                        }
                    } else if (this.isBottomEdge(x, y, boundsInParent)) {
                        if (x < diagonalSize) {
-                            root.setCursor(Cursor.SW_RESIZE);
-                        } else if (x > root.getWidth() - diagonalSize) {
-                            root.setCursor(Cursor.SE_RESIZE);
+                            parent.setCursor(Cursor.SW_RESIZE);
+                        } else if (x > parent.getWidth() - diagonalSize) {
+                            parent.setCursor(Cursor.SE_RESIZE);
                        } else {
-                            root.setCursor(Cursor.S_RESIZE);
+                            parent.setCursor(Cursor.S_RESIZE);
                        }
                    } else {
-                        root.setCursor(Cursor.DEFAULT);
+                        parent.setCursor(Cursor.DEFAULT);
                    }
                }
            }
        } else {
-            root.setCursor(Cursor.DEFAULT);
+            parent.setCursor(Cursor.DEFAULT);
        }
    }

@@ -382,7 +395,7 @@ public class DecoratorSkin extends SkinBase<Decorator> {
                this.newY = mouseEvent.getScreenY();
                double deltaX = this.newX - this.initX;
                double deltaY = this.newY - this.initY;
-                Cursor cursor = root.getCursor();
+                Cursor cursor = parent.getCursor();
                if (Cursor.E_RESIZE == cursor) {
                    this.setStageWidth(this.primaryStage.getWidth() + deltaX);
                    mouseEvent.consume();
@@ -20,7 +20,6 @@ package org.jackhuang.hmcl.ui.download;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
-import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.LibraryAnalyzer;
 import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.game.GameRepository;
@@ -40,7 +39,7 @@ class AdditionalInstallersPage extends InstallersPage {
    protected final String gameVersion;
    protected final Version version;

-    public AdditionalInstallersPage(String gameVersion, Version version, WizardController controller, GameRepository repository, DownloadProvider downloadProvider) {
+    public AdditionalInstallersPage(String gameVersion, Version version, WizardController controller, GameRepository repository, InstallerWizardDownloadProvider downloadProvider) {
        super(controller, repository, gameVersion, downloadProvider);
        this.gameVersion = gameVersion;
        this.version = version;
@@ -108,7 +107,7 @@ class AdditionalInstallersPage extends InstallersPage {
                libraries[i].removable.set(true);
                compatible = false;
            } else if (alreadyInstalled || getVersion(libraryId) != null) {
-                libraries[i].label.set(i18n("install.installer.version", i18n("install.installer." + libraryId)) + ": " + libraryVersion);
+                libraries[i].label.set(i18n("install.installer.version", i18n("install.installer." + libraryId), libraryVersion));
                libraries[i].removable.set(true);
            } else {
                libraries[i].label.set(i18n("install.installer.not_installed", i18n("install.installer." + libraryId)));
@@ -0,0 +1,72 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <[email protected]> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.download;
+
+import org.jackhuang.hmcl.download.DownloadProvider;
+import org.jackhuang.hmcl.download.VersionList;
+
+import java.net.URL;
+import java.util.List;
+
+public class InstallerWizardDownloadProvider implements DownloadProvider {
+
+    private DownloadProvider fallback;
+
+    public InstallerWizardDownloadProvider(DownloadProvider fallback) {
+        this.fallback = fallback;
+    }
+
+    public void setDownloadProvider(DownloadProvider downloadProvider) {
+        fallback = downloadProvider;
+    }
+
+    @Override
+    public String getVersionListURL() {
+        return fallback.getVersionListURL();
+    }
+
+    @Override
+    public String getAssetBaseURL() {
+        return fallback.getAssetBaseURL();
+    }
+
+    @Override
+    public List<URL> getAssetObjectCandidates(String assetObjectLocation) {
+        return fallback.injectURLWithCandidates(assetObjectLocation);
+    }
+
+    @Override
+    public String injectURL(String baseURL) {
+        return fallback.injectURL(baseURL);
+    }
+
+    @Override
+    public List<URL> injectURLWithCandidates(String baseURL) {
+        return fallback.injectURLWithCandidates(baseURL);
+    }
+
+    @Override
+    public VersionList<?> getVersionListById(String id) {
+        return fallback.getVersionListById(id);
+    }
+
+    @Override
+    public int getConcurrency() {
+        return fallback.getConcurrency();
+    }
+}
@@ -37,7 +37,6 @@ import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.VBox;
-import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.game.GameRepository;
 import org.jackhuang.hmcl.setting.Theme;
@@ -64,7 +63,7 @@ public class InstallersPage extends Control implements WizardPage {
    protected JFXTextField txtName = new JFXTextField();
    protected BooleanProperty installable = new SimpleBooleanProperty();

-    public InstallersPage(WizardController controller, GameRepository repository, String gameVersion, DownloadProvider downloadProvider) {
+    public InstallersPage(WizardController controller, GameRepository repository, String gameVersion, InstallerWizardDownloadProvider downloadProvider) {
        this.controller = controller;

        Validator hasVersion = new Validator(s -> !repository.hasVersion(s) && StringUtils.isNotBlank(s));
@@ -105,7 +104,7 @@ public class InstallersPage extends Control implements WizardPage {
        for (InstallerPageItem library : libraries) {
            String libraryId = library.id;
            if (controller.getSettings().containsKey(libraryId)) {
-                library.label.set(i18n("install.installer.version", i18n("install.installer." + libraryId)) + ": " + getVersion(libraryId));
+                library.label.set(i18n("install.installer.version", i18n("install.installer." + libraryId), getVersion(libraryId)));
                library.removable.set(true);
            } else {
                library.label.setValue(i18n("install.installer.not_installed", i18n("install.installer." + libraryId)));
@@ -153,7 +152,6 @@ public class InstallersPage extends Control implements WizardPage {
            final Label label;

            InstallersPageItemSkin(String imageUrl, InstallerPageItem item, boolean clickable) {
-                setPadding(new Insets(8));
                getStyleClass().add("card");

                setLeft(FXUtils.limitingSize(imageView = new ImageView(new Image(imageUrl, 32, 32, true, true)), 32, 32));
@@ -200,7 +198,7 @@ public class InstallersPage extends Control implements WizardPage {
                HBox versionNamePane = new HBox(8);
                versionNamePane.setAlignment(Pos.CENTER_LEFT);
                versionNamePane.getStyleClass().add("card");
-                versionNamePane.setPadding(new Insets(20, 8, 20, 16));
+                versionNamePane.setStyle("-fx-padding: 20 8 20 16");

                versionNamePane.getChildren().add(new Label(i18n("archive.name")));

@@ -18,12 +18,16 @@
 package org.jackhuang.hmcl.ui.download;

 import javafx.scene.Node;
-import org.jackhuang.hmcl.download.*;
+import org.jackhuang.hmcl.download.ArtifactMalformedException;
+import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.RemoteVersion;
+import org.jackhuang.hmcl.download.VersionMismatchException;
 import org.jackhuang.hmcl.download.fabric.FabricInstallTask;
 import org.jackhuang.hmcl.download.game.GameAssetIndexDownloadTask;
 import org.jackhuang.hmcl.download.game.LibraryDownloadException;
 import org.jackhuang.hmcl.download.optifine.OptiFineInstallTask;
 import org.jackhuang.hmcl.game.Version;
+import org.jackhuang.hmcl.setting.DownloadProviders;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.task.DownloadException;
 import org.jackhuang.hmcl.task.Task;
@@ -53,14 +57,16 @@ public final class UpdateInstallerWizardProvider implements WizardProvider {
    private final Version version;
    private final String libraryId;
    private final String oldLibraryVersion;
+    private final InstallerWizardDownloadProvider downloadProvider;

    public UpdateInstallerWizardProvider(@NotNull Profile profile, @NotNull String gameVersion, @NotNull Version version, @NotNull String libraryId, @Nullable String oldLibraryVersion) {
        this.profile = profile;
-        this.dependencyManager = profile.getDependency();
        this.gameVersion = gameVersion;
        this.version = version;
        this.libraryId = libraryId;
        this.oldLibraryVersion = oldLibraryVersion;
+        this.downloadProvider = new InstallerWizardDownloadProvider(DownloadProviders.getDownloadProvider());
+        this.dependencyManager = profile.getDependency(downloadProvider);
    }

    @Override
@@ -95,15 +101,14 @@ public final class UpdateInstallerWizardProvider implements WizardProvider {

    @Override
    public Node createPage(WizardController controller, int step, Map<String, Object> settings) {
-        DownloadProvider provider = profile.getDependency().getPrimaryDownloadProvider();
        switch (step) {
            case 0:
-                return new VersionsPage(controller, i18n("install.installer.choose", i18n("install.installer." + libraryId)), gameVersion, provider, libraryId, () -> {
+                return new VersionsPage(controller, i18n("install.installer.choose", i18n("install.installer." + libraryId)), gameVersion, downloadProvider, libraryId, () -> {
                    if (oldLibraryVersion == null) {
                        controller.onFinish();
                    } else if ("game".equals(libraryId)) {
                        String newGameVersion = ((RemoteVersion) settings.get(libraryId)).getSelfVersion();
-                        controller.onNext(new AdditionalInstallersPage(newGameVersion, version, controller, profile.getRepository(), provider));
+                        controller.onNext(new AdditionalInstallersPage(newGameVersion, version, controller, profile.getRepository(), downloadProvider));
                    } else {
                        Controllers.confirm(i18n("install.change_version.confirm", i18n("install.installer." + libraryId), oldLibraryVersion, ((RemoteVersion) settings.get(libraryId)).getSelfVersion()),
                                i18n("install.change_version"), controller::onFinish, controller::onCancel);
@@ -18,9 +18,10 @@
 package org.jackhuang.hmcl.ui.download;

 import javafx.scene.Node;
-import org.jackhuang.hmcl.download.DownloadProvider;
+import org.jackhuang.hmcl.download.DefaultDependencyManager;
 import org.jackhuang.hmcl.download.GameBuilder;
 import org.jackhuang.hmcl.download.RemoteVersion;
+import org.jackhuang.hmcl.setting.DownloadProviders;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.task.Task;
@@ -33,9 +34,13 @@ import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public final class VanillaInstallWizardProvider implements WizardProvider {
    private final Profile profile;
+    private final DefaultDependencyManager dependencyManager;
+    private final InstallerWizardDownloadProvider downloadProvider;

    public VanillaInstallWizardProvider(Profile profile) {
        this.profile = profile;
+        this.downloadProvider = new InstallerWizardDownloadProvider(DownloadProviders.getDownloadProvider());
+        this.dependencyManager = profile.getDependency(downloadProvider);
    }

    @Override
@@ -44,7 +49,7 @@ public final class VanillaInstallWizardProvider implements WizardProvider {
    }

    private Task<Void> finishVersionDownloadingAsync(Map<String, Object> settings) {
-        GameBuilder builder = profile.getDependency().gameBuilder();
+        GameBuilder builder = dependencyManager.gameBuilder();

        String name = (String) settings.get("name");
        builder.name(name);
@@ -69,11 +74,10 @@ public final class VanillaInstallWizardProvider implements WizardProvider {

    @Override
    public Node createPage(WizardController controller, int step, Map<String, Object> settings) {
-        DownloadProvider provider = profile.getDependency().getPrimaryDownloadProvider();
        switch (step) {
            case 0:
-                return new VersionsPage(controller, i18n("install.installer.choose", i18n("install.installer.game")), "", provider, "game",
-                        () -> controller.onNext(new InstallersPage(controller, profile.getRepository(), ((RemoteVersion) controller.getSettings().get("game")).getGameVersion(), provider)));
+                return new VersionsPage(controller, i18n("install.installer.choose", i18n("install.installer.game")), "", downloadProvider, "game",
+                        () -> controller.onNext(new InstallersPage(controller, profile.getRepository(), ((RemoteVersion) controller.getSettings().get("game")).getGameVersion(), downloadProvider)));
            default:
                throw new IllegalStateException("error step " + step + ", settings: " + settings + ", pages: " + controller.getPages());
        }
@@ -18,6 +18,7 @@
 package org.jackhuang.hmcl.ui.download;

 import com.jfoenix.controls.JFXCheckBox;
+import com.jfoenix.controls.JFXComboBox;
 import com.jfoenix.controls.JFXListView;
 import com.jfoenix.controls.JFXSpinner;
 import javafx.application.Platform;
@@ -31,7 +32,6 @@ import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
-import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.download.VersionList;
 import org.jackhuang.hmcl.download.fabric.FabricRemoteVersion;
@@ -39,6 +39,7 @@ import org.jackhuang.hmcl.download.forge.ForgeRemoteVersion;
 import org.jackhuang.hmcl.download.game.GameRemoteVersion;
 import org.jackhuang.hmcl.download.liteloader.LiteLoaderRemoteVersion;
 import org.jackhuang.hmcl.download.optifine.OptiFineRemoteVersion;
+import org.jackhuang.hmcl.setting.DownloadProviders;
 import org.jackhuang.hmcl.task.TaskExecutor;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
@@ -54,6 +55,7 @@ import java.util.Map;
 import java.util.logging.Level;
 import java.util.stream.Collectors;

+import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
 import static org.jackhuang.hmcl.util.Logging.LOG;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

@@ -83,23 +85,34 @@ public final class VersionsPage extends BorderPane implements WizardPage, Refres
    private HBox checkPane;
    @FXML
    private VBox centrePane;
+    @FXML
+    private JFXComboBox<String> downloadSourceComboBox;

-    private final VersionList<?> versionList;
+    private VersionList<?> versionList;
    private TaskExecutor executor;

-    public VersionsPage(WizardController controller, String title, String gameVersion, DownloadProvider downloadProvider, String libraryId, Runnable callback) {
+    public VersionsPage(WizardController controller, String title, String gameVersion, InstallerWizardDownloadProvider downloadProvider, String libraryId, Runnable callback) {
        this.title = title;
        this.gameVersion = gameVersion;
        this.libraryId = libraryId;
        this.controller = controller;
-        this.versionList = downloadProvider.getVersionListById(libraryId);

        FXUtils.loadFXML(this, "/assets/fxml/download/versions.fxml");

-        if (versionList.hasType()) {
-            centrePane.getChildren().setAll(checkPane, list);
-        } else
-            centrePane.getChildren().setAll(list);
+        downloadSourceComboBox.getItems().setAll(DownloadProviders.providersById.keySet());
+        downloadSourceComboBox.setConverter(stringConverter(key -> i18n("download.provider." + key)));
+        downloadSourceComboBox.getSelectionModel().selectedItemProperty().addListener((a, b, newValue) -> {
+            controller.getSettings().put("downloadProvider", newValue);
+            downloadProvider.setDownloadProvider(DownloadProviders.getDownloadProviderByPrimaryId(newValue));
+            versionList = downloadProvider.getVersionListById(libraryId);
+            if (versionList.hasType()) {
+                centrePane.getChildren().setAll(checkPane, list);
+            } else {
+                centrePane.getChildren().setAll(list);
+            }
+            refresh();
+        });
+        downloadSourceComboBox.getSelectionModel().select((String)controller.getSettings().getOrDefault("downloadProvider", DownloadProviders.getPrimaryDownloadProviderId()));

        InvalidationListener listener = o -> list.getItems().setAll(loadVersions());
        chkRelease.selectedProperty().addListener(listener);
@@ -184,13 +197,15 @@ public final class VersionsPage extends BorderPane implements WizardPage, Refres

    @Override
    public void refresh() {
+        VersionList<?> currentVersionList = versionList;
        root.setContent(spinner, ContainerAnimations.FADE.getAnimationProducer());
-        executor = versionList.refreshAsync(gameVersion).whenComplete(exception -> {
+        executor = currentVersionList.refreshAsync(gameVersion).whenComplete(exception -> {
            if (exception == null) {
                List<RemoteVersion> items = loadVersions();

                Platform.runLater(() -> {
-                    if (versionList.getVersions(gameVersion).isEmpty()) {
+                    if (versionList != currentVersionList) return;
+                    if (currentVersionList.getVersions(gameVersion).isEmpty()) {
                        root.setContent(emptyPane, ContainerAnimations.FADE.getAnimationProducer());
                    } else {
                        if (items.isEmpty()) {
@@ -206,6 +221,7 @@ public final class VersionsPage extends BorderPane implements WizardPage, Refres
            } else {
                LOG.log(Level.WARNING, "Failed to fetch versions list", exception);
                Platform.runLater(() -> {
+                    if (versionList != currentVersionList) return;
                    root.setContent(failedPane, ContainerAnimations.FADE.getAnimationProducer());
                });
            }
@@ -115,6 +115,7 @@ public final class MainPage extends StackPane implements DecoratorPage {
        }

        StackPane launchPane = new StackPane();
+        launchPane.getStyleClass().add("launch-pane");
        launchPane.setMaxWidth(230);
        launchPane.setMaxHeight(55);
        launchPane.setOnScroll(event -> {
@@ -134,8 +135,7 @@ public final class MainPage extends StackPane implements DecoratorPage {
            JFXButton launchButton = new JFXButton();
            launchButton.setPrefWidth(230);
            launchButton.setPrefHeight(55);
-            launchButton.setButtonType(JFXButton.ButtonType.RAISED);
-            launchButton.getStyleClass().add("jfx-button-raised");
+            //launchButton.setButtonType(JFXButton.ButtonType.RAISED);
            launchButton.setOnAction(e -> launch());
            launchButton.setDefaultButton(true);
            launchButton.setClip(new Rectangle(-100, -100, 310, 200));
@@ -161,7 +161,6 @@ public final class MainPage extends StackPane implements DecoratorPage {
            }

            Rectangle separator = new Rectangle();
-            separator.getStyleClass().add("darker-fill");
            separator.setWidth(1);
            separator.setHeight(57);
            separator.setTranslateX(95);
@@ -170,13 +169,12 @@ public final class MainPage extends StackPane implements DecoratorPage {
            menuButton = new JFXButton();
            menuButton.setPrefHeight(55);
            menuButton.setPrefWidth(230);
-            menuButton.setButtonType(JFXButton.ButtonType.RAISED);
-            menuButton.getStyleClass().add("jfx-button-raised");
+            //menuButton.setButtonType(JFXButton.ButtonType.RAISED);
            menuButton.setStyle("-fx-font-size: 15px;");
            menuButton.setOnMouseClicked(e -> onMenu());
            menuButton.setClip(new Rectangle(211, -100, 100, 200));
            StackPane graphic = new StackPane();
-            Node svg = SVG.triangle(Theme.whiteFillBinding(), 10, 10);
+            Node svg = SVG.triangle(Theme.foregroundFillBinding(), 10, 10);
            StackPane.setAlignment(svg, Pos.CENTER_RIGHT);
            graphic.getChildren().setAll(svg);
            graphic.setTranslateX(12);
@@ -18,11 +18,9 @@
 package org.jackhuang.hmcl.ui.main;

 import javafx.application.Platform;
-import javafx.geometry.Insets;
 import javafx.scene.Node;
 import javafx.scene.control.SkinBase;
 import javafx.scene.layout.BorderPane;
-import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.event.EventBus;
 import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
 import org.jackhuang.hmcl.game.HMCLGameRepository;
@@ -182,6 +180,26 @@ public class RootPage extends DecoratorTabPage {
        return profileListPage;
    }

+    public Tab getMainTab() {
+        return mainTab;
+    }
+
+    public Tab getSettingsTab() {
+        return settingsTab;
+    }
+
+    public Tab getGameTab() {
+        return gameTab;
+    }
+
+    public Tab getAccountTab() {
+        return accountTab;
+    }
+
+    public Tab getProfileTab() {
+        return profileTab;
+    }
+
    private static class Skin extends SkinBase<RootPage> {

        protected Skin(RootPage control) {
@@ -247,9 +265,7 @@ public class RootPage extends DecoratorTabPage {
                control.transitionPane.getStyleClass().add("jfx-decorator-content-container");
                control.transitionPane.getChildren().setAll(getSkinnable().getMainPage());
                FXUtils.setOverflowHidden(control.transitionPane, 8);
-                StackPane wrapper = new StackPane(control.transitionPane);
-                wrapper.setPadding(new Insets(4));
-                root.setCenter(wrapper);
+                root.setCenter(control.transitionPane);
            }

            getChildren().setAll(root);
@@ -34,7 +34,6 @@ import org.jackhuang.hmcl.setting.*;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
-import org.jackhuang.hmcl.ui.construct.Navigator;
 import org.jackhuang.hmcl.ui.construct.Validator;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
 import org.jackhuang.hmcl.upgrade.RemoteVersion;
@@ -63,7 +62,7 @@ import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.Lang.thread;
 import static org.jackhuang.hmcl.util.Logging.LOG;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.reservedSelectedPropertyFor;
+import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.reversedSelectedPropertyFor;
 import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.selectedItemPropertyFor;

 public final class SettingsPage extends SettingsView implements DecoratorPage {
@@ -73,7 +72,6 @@ public final class SettingsPage extends SettingsView implements DecoratorPage {

    public SettingsPage() {
        FXUtils.smoothScrolling(scroll);
-        addEventHandler(Navigator.NavigationEvent.NAVIGATED, this::onDecoratorPageNavigating);

        // ==== Download sources ====
        cboDownloadSource.getItems().setAll(DownloadProviders.providersById.keySet());
@@ -112,7 +110,7 @@ public final class SettingsPage extends SettingsView implements DecoratorPage {
        proxyPane.disableProperty().bind(chkDisableProxy.selectedProperty());
        authPane.disableProperty().bind(chkProxyAuthentication.selectedProperty().not());

-        reservedSelectedPropertyFor(chkDisableProxy).bindBidirectional(config().hasProxyProperty());
+        reversedSelectedPropertyFor(chkDisableProxy).bindBidirectional(config().hasProxyProperty());
        chkProxyAuthentication.selectedProperty().bindBidirectional(config().hasProxyAuthProperty());

        ToggleGroup proxyConfigurationGroup = new ToggleGroup();
@@ -75,7 +75,7 @@ public class ProfileListItemSkin extends SkinBase<ProfileListItem> {
        root.setRight(right);

        root.getStyleClass().add("card");
-        root.setPadding(new Insets(8, 8, 8, 0));
+        root.setStyle("-fx-padding: 8 8 8 0");
        JFXDepthManager.setDepth(root, 1);
        item.titleProperty().bind(skinnable.titleProperty());
        item.subtitleProperty().bind(skinnable.subtitleProperty());
@@ -57,7 +57,6 @@ public class GameList extends ListPageBase<GameListItem> implements DecoratorPag
        });

        Profiles.registerVersionsListener(this::loadVersions);
-        addEventHandler(Navigator.NavigationEvent.NAVIGATED, this::onDecoratorPageNavigating);
    }

    private void loadVersions(Profile profile) {
@@ -99,7 +99,7 @@ public class GameListItemSkin extends SkinBase<GameListItem> {
        root.setRight(right);

        root.getStyleClass().add("card");
-        root.setPadding(new Insets(8, 8, 8, 0));
+        root.setStyle("-fx-padding: 8 8 8 0");
        JFXDepthManager.setDepth(root, 1);

        getChildren().setAll(root);
@@ -87,13 +87,12 @@ class ModListPageSkin extends SkinBase<ModListPage> {
                BooleanProperty booleanProperty;

                {
+
                    Region clippedContainer = (Region)listView.lookup(".clipped-container");
                    setPrefWidth(0);
                    HBox container = new HBox(8);
-                    container.setPadding(new Insets(0, 0, 0, 6));
                    container.setAlignment(Pos.CENTER_LEFT);
                    pane.getChildren().add(container);
-                    pane.setPadding(new Insets(8, 8, 8, 0));
                    if (clippedContainer != null) {
                        maxWidthProperty().bind(clippedContainer.widthProperty());
                        prefWidthProperty().bind(clippedContainer.widthProperty());
@@ -17,16 +17,17 @@
 */
 package org.jackhuang.hmcl.ui.versions;

-import com.jfoenix.controls.*;
+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXListCell;
+import com.jfoenix.controls.JFXListView;
+import com.jfoenix.controls.JFXPopup;
 import javafx.application.Platform;
 import javafx.beans.property.*;
-import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.control.*;
 import javafx.scene.input.MouseButton;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
-import javafx.scene.layout.StackPane;
 import javafx.util.Callback;
 import org.jackhuang.hmcl.game.HMCLGameRepository;
 import org.jackhuang.hmcl.game.Version;
@@ -244,7 +245,6 @@ public class VersionPage extends Control implements DecoratorPage {
                    }, listViewItemPopup))
            );

-            FXUtils.smoothScrolling(control.listView);
            control.listView.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
            control.listView.setCellFactory(new Callback<ListView<String>, ListCell<String>>() {
                @Override
@@ -266,18 +266,8 @@ public class VersionPage extends Control implements DecoratorPage {

            // the root page, with the sidebar in left, navigator in center.
            BorderPane root = new BorderPane();
-
-            {
-                StackPane drawerContainer = new StackPane();
-                FXUtils.setLimitWidth(drawerContainer, 200);
-                drawerContainer.getStyleClass().add("gray-background");
-                drawerContainer.getChildren().setAll(control.listView);
-                FXUtils.setOverflowHidden(drawerContainer, 8);
-
-                StackPane wrapper = new StackPane(drawerContainer);
-                wrapper.setPadding(new Insets(4, 0, 4, 4));
-                root.setLeft(wrapper);
-            }
+            FXUtils.setLimitWidth(control.listView, 200);
+            root.setLeft(control.listView);

            TabHeader tabPane = new TabHeader();
            tabPane.setPickOnBounds(false);
@@ -328,9 +318,7 @@ public class VersionPage extends Control implements DecoratorPage {
                );

                JFXButton upgradeButton = new JFXButton();
-                FXUtils.setLimitWidth(upgradeButton, 40);
-                FXUtils.setLimitHeight(upgradeButton, 40);
-                upgradeButton.setGraphic(SVG.update(Theme.whiteFillBinding(), 20, 20));
+                upgradeButton.setGraphic(SVG.update(null, 20, 20));
                upgradeButton.getStyleClass().add("jfx-decorator-button");
                upgradeButton.ripplerFillProperty().bind(Theme.whiteFillBinding());
                upgradeButton.setOnAction(event -> control.updateGame());
@@ -338,18 +326,14 @@ public class VersionPage extends Control implements DecoratorPage {
                FXUtils.installFastTooltip(upgradeButton, i18n("version.update"));

                JFXButton testGameButton = new JFXButton();
-                FXUtils.setLimitWidth(testGameButton, 40);
-                FXUtils.setLimitHeight(testGameButton, 40);
-                testGameButton.setGraphic(SVG.launch(Theme.whiteFillBinding(), 20, 20));
+                testGameButton.setGraphic(SVG.launch(null, 20, 20));
                testGameButton.getStyleClass().add("jfx-decorator-button");
                testGameButton.ripplerFillProperty().bind(Theme.whiteFillBinding());
                testGameButton.setOnAction(event -> control.testGame());
                FXUtils.installFastTooltip(testGameButton, i18n("version.launch.test"));

                JFXButton browseMenuButton = new JFXButton();
-                FXUtils.setLimitWidth(browseMenuButton, 40);
-                FXUtils.setLimitHeight(browseMenuButton, 40);
-                browseMenuButton.setGraphic(SVG.folderOpen(Theme.whiteFillBinding(), 20, 20));
+                browseMenuButton.setGraphic(SVG.folderOpen(null, 20, 20));
                browseMenuButton.getStyleClass().add("jfx-decorator-button");
                browseMenuButton.ripplerFillProperty().bind(Theme.whiteFillBinding());
                browseMenuButton.setOnAction(event -> browsePopup.show(browseMenuButton, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.RIGHT, 0, browseMenuButton.getHeight()));
@@ -357,8 +341,8 @@ public class VersionPage extends Control implements DecoratorPage {

                JFXButton managementMenuButton = new JFXButton();
                FXUtils.setLimitWidth(managementMenuButton, 40);
-                FXUtils.setLimitHeight(managementMenuButton, 40);;
-                managementMenuButton.setGraphic(SVG.wrench(Theme.whiteFillBinding(), 20, 20));
+                FXUtils.setLimitHeight(managementMenuButton, 40);
+                managementMenuButton.setGraphic(SVG.wrench(null, 20, 20));
                managementMenuButton.getStyleClass().add("jfx-decorator-button");
                managementMenuButton.ripplerFillProperty().bind(Theme.whiteFillBinding());
                managementMenuButton.setOnAction(event -> managementPopup.show(managementMenuButton, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.RIGHT, 0, managementMenuButton.getHeight()));
@@ -370,13 +354,11 @@ public class VersionPage extends Control implements DecoratorPage {
            BorderPane titleBar = new BorderPane();
            titleBar.setLeft(tabPane);
            titleBar.setRight(toolBar);
-            control.state.set(new State(i18n("version.manage.manage"), titleBar, true, false, true));
+            control.state.set(new State(i18n("version.manage.manage"), titleBar, true, false, true, false, 200));

-            control.transitionPane.getStyleClass().add("gray-background");
-            FXUtils.setOverflowHidden(control.transitionPane, 8);
-            StackPane wrapper = new StackPane(control.transitionPane);
-            wrapper.setPadding(new Insets(4));
-            root.setCenter(wrapper);
+            //control.transitionPane.getStyleClass().add("gray-background");
+            //FXUtils.setOverflowHidden(control.transitionPane, 8);
+            root.setCenter(control.transitionPane);

            spinnerPane.loadingProperty().bind(control.loading);
            spinnerPane.setContent(root);
@@ -19,16 +19,17 @@ package org.jackhuang.hmcl.ui.versions;

 import javafx.stage.FileChooser;
 import org.jackhuang.hmcl.download.game.GameAssetDownloadTask;
+import org.jackhuang.hmcl.game.GameDirectoryType;
 import org.jackhuang.hmcl.game.GameRepository;
 import org.jackhuang.hmcl.game.LauncherHelper;
 import org.jackhuang.hmcl.setting.Accounts;
-import org.jackhuang.hmcl.game.GameDirectoryType;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.task.TaskExecutor;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.ui.construct.MessageDialogPane;
 import org.jackhuang.hmcl.ui.construct.PromptDialogPane;
 import org.jackhuang.hmcl.ui.construct.Validator;
 import org.jackhuang.hmcl.ui.download.ModpackInstallWizardProvider;
@@ -150,7 +151,9 @@ public class Versions {
        if (Accounts.getSelectedAccount() == null)
            Controllers.getRootPage().checkAccount();
        else if (id == null || !profile.getRepository().isLoaded() || !profile.getRepository().hasVersion(id))
-            Controllers.dialog(i18n("version.empty.launch"));
+            Controllers.dialog(i18n("version.empty.launch"), i18n("launch.failed"), MessageDialogPane.MessageType.ERROR, () -> {
+                 Controllers.getRootPage().getSelectionModel().select(Controllers.getRootPage().getGameTab());
+            });
        else
            return true;
        return false;
@@ -85,7 +85,7 @@ public class WorldListItemSkin extends SkinBase<WorldListItem> {
        root.setRight(right);

        root.getStyleClass().add("card");
-        root.setPadding(new Insets(8, 8, 8, 0));
+        root.setStyle("-fx-padding: 8 8 8 0");
        JFXDepthManager.setDepth(root, 1);

        getChildren().setAll(root);
@@ -18,22 +18,6 @@
 .root {
 }

-.jfx-list-view .scroll-bar {
-    -fx-skin: "org.jackhuang.hmcl.ui.construct.FloatScrollBarSkin";
-}
-
-.jfx-list-view .scroll-bar .track {
-    -fx-fill: transparent;
-}
-
-.scroll-pane .scroll-bar {
-    -fx-skin: "org.jackhuang.hmcl.ui.construct.FloatScrollBarSkin";
-}
-
-.scroll-pane .scroll-bar .track {
-    -fx-fill: transparent;
-}
-
 .scroll-bar .thumb {
    -fx-fill: rgba(255, 255, 255, 0.5);
    -fx-arc-width: 5px;
@@ -44,13 +28,6 @@
    -fx-text-fill: rgba(0, 0, 0, 0.5);
 }

-.side-menu {
-    -fx-padding: 20.0, 10.0;
-    -fx-font-size: 15.0;
-    -fx-font-weight: NORMAL;
-    -fx-text-fill: #444;
-}
-
 .title-label {
    -fx-font-size: 16.0px;
    -fx-padding: 14.0px;
@@ -153,10 +130,6 @@
 	-fx-text-fill: white;
 }

-.darker-fill {
-    -fx-fill: -fx-base-darker-color;
-}
-
 .sponsor-pane {
    -fx-padding: 16;
    -fx-cursor: hand;
@@ -166,6 +139,32 @@
    -fx-wrap-text: true;
 }

+/*******************************************************************************
+ *                                                                             *
+ * Main Page                                                                   *
+ *                                                                             *
+ ******************************************************************************/
+
+.launch-pane .jfx-button {
+    -fx-background-color: -fx-base-color;
+    -fx-cursor: hand;
+}
+
+.launch-pane .jfx-button .jfx-rippler {
+    -jfx-rippler-fill: white;
+    -jfx-mask-type: CIRCLE;
+    -fx-padding: 0.0;
+}
+
+.launch-pane .jfx-button, .jfx-button * {
+    -fx-text-fill: -fx-base-text-fill;
+    -fx-font-size: 14px;
+}
+
+.launch-pane Rectangle {
+    -fx-fill: -fx-base-darker-color;
+}
+
 /*******************************************************************************
 *                                                                             *
 * JFX Tab Pane                                                                *
@@ -370,7 +369,9 @@
    -fx-font-size: 13.0;
    -fx-font-weight: BOLD;
    -fx-pref-width: 100.0%;
-    -fx-pref-height: 32.0px;
+    -fx-min-height: 40px;
+    -fx-max-height: 40px;
+    -fx-pref-height: 40px;
 }

 .jfx-tool-bar .background {
@@ -383,9 +384,19 @@
 }

 .jfx-tool-bar .jfx-decorator-button {
+    -fx-min-width: 40px;
+    -fx-max-width: 40px;
+    -fx-pref-width: 40px;
+    -fx-min-height: 40px;
+    -fx-max-height: 40px;
+    -fx-pref-height: 40px;
    -fx-cursor: hand;
 }

+.jfx-tool-bar .jfx-decorator-button .svg {
+    -fx-fill: -fx-base-text-fill;
+}
+
 .jfx-tool-bar Label {
    -fx-text-fill: WHITE;
 }
@@ -436,9 +447,9 @@
 }

 .jfx-decorator-button {
-    -fx-max-width: 35px;
+    -fx-max-width: 40px;
    -fx-background-radius: 5px;
-    -fx-max-height: 35px;
+    -fx-max-height: 40px;
    -fx-background-color: transparent;
    -jfx-toggle-color: rgba(128, 128, 255, 0.2);
    -jfx-untoggle-color: transparent;
@@ -671,8 +682,15 @@
    -fx-background-color: transparent;
 }

+.jfx-list-view .scroll-bar {
+    -fx-skin: "org.jackhuang.hmcl.ui.construct.FloatScrollBarSkin";
+}
+
+.jfx-list-view .scroll-bar .track {
+    -fx-fill: transparent;
+}
+
 .jfx-list-view-float {
-    -fx-padding: 5;
    -fx-background-insets: 0.0;
    -jfx-cell-horizontal-margin: 0.0;
    -jfx-cell-vertical-margin: 5.0;
@@ -689,6 +707,7 @@
 .card {
    -fx-background-color: WHITE;
    -fx-background-radius: 4;
+    -fx-padding: 8px;
 }

 .card:selected {
@@ -1092,12 +1111,8 @@
    -fx-decorator-color: -fx-base-color;
 }

-.jfx-decorator .jfx-decorator-buttons-container {
-    -fx-background-color: -fx-decorator-color;
-}
-
 .jfx-decorator-drawer {
-    -fx-background-color: rgba(244, 244, 244, 0.55);
+    -fx-background-color: rgba(244, 244, 244, 0.5);
 }

 .jfx-decorator-title {
@@ -1118,9 +1133,9 @@
    -fx-text-fill: -fx-base-text-fill;
 }

-.resize-border {
-    -fx-border-color: -fx-base-color;
-    -fx-border-width: 2;
+.window {
+    -fx-border-color: black;
+    -fx-border-width: 1;
 }

 .debug-border {
@@ -1132,10 +1147,6 @@
    -fx-background-color: rgba(244, 244, 244, 0.5);
 }

-.drawer-background {
-    -fx-background-color: #FAFAFA;
-}
-
 .gray-background {
    -fx-background-color: rgba(244, 244, 244, 0.5);
 }
@@ -1325,6 +1336,14 @@
    -fx-background-color: null;
 }

+.scroll-pane .scroll-bar {
+    -fx-skin: "org.jackhuang.hmcl.ui.construct.FloatScrollBarSkin";
+}
+
+.scroll-pane .scroll-bar .track {
+    -fx-fill: transparent;
+}
+
 /*******************************************************************************
 *                                                                              *
 * Error Facade                                                                 *
@@ -13,7 +13,7 @@
    </fx:define>
    <VBox fx:id="list" styleClass="jfx-list-view" maxHeight="150" spacing="8" maxWidth="400">
        <Label padding="${insets}" text="%install.modpack" />
-        <JFXButton fx:id="btnLocal" styleClass="card" style="-fx-padding: 8; -fx-cursor: HAND" prefWidth="${list.width}" onMouseClicked="#onChooseLocalFile">
+        <JFXButton fx:id="btnLocal" styleClass="card" style="-fx-cursor: HAND" prefWidth="${list.width}" onMouseClicked="#onChooseLocalFile">
            <graphic>
                <BorderPane mouseTransparent="true">
                    <left>
@@ -25,7 +25,7 @@
                </BorderPane>
            </graphic>
        </JFXButton>
-        <JFXButton fx:id="btnRemote" styleClass="card" style="-fx-padding: 8; -fx-cursor: HAND" prefWidth="${list.width}" onMouseClicked="#onChooseRemoteFile">
+        <JFXButton fx:id="btnRemote" styleClass="card" style="-fx-cursor: HAND" prefWidth="${list.width}" onMouseClicked="#onChooseRemoteFile">
            <graphic>
                <BorderPane mouseTransparent="true">
                    <left>
@@ -9,9 +9,20 @@
         type="BorderPane"
         prefHeight="400.0" prefWidth="600.0">
    <top>
-        <StackPane styleClass="sponsor-pane" onMouseClicked="#onSponsor">
-            <Label text="%sponsor.bmclapi" />
-        </StackPane>
+        <VBox>
+            <StackPane styleClass="sponsor-pane" onMouseClicked="#onSponsor">
+                <Label text="%sponsor.bmclapi" />
+            </StackPane>
+            <BorderPane style="-fx-padding: 0 16 16 16;">
+                <left>
+                    <Label text="%settings.launcher.download_source" BorderPane.alignment="CENTER_LEFT" />
+                </left>
+                <right>
+                    <JFXComboBox fx:id="downloadSourceComboBox">
+                    </JFXComboBox>
+                </right>
+            </BorderPane>
+        </VBox>
    </top>
    <center>
        <TransitionPane fx:id="root">
@@ -151,9 +151,9 @@ install.installer.install_offline.tooltip=Supports import of Forge/OptiFine inst
 install.installer.install_online=Install Online
 install.installer.install_online.tooltip=Support installation of Fabric, Forge, OptiFine, LiteLoader.
 install.installer.liteloader=LiteLoader
-install.installer.not_installed=%s not Installed
+install.installer.not_installed=%s Version: not installed
 install.installer.optifine=OptiFine
-install.installer.version=%s Version
+install.installer.version=%s Version: %s
 install.modpack=Install a modpack
 install.new_game=Install a New Game
 install.new_game.already_exists=This version already exists.
@@ -149,7 +149,7 @@ install.installer.install_online.tooltip=Soporta instalación de Fabric, Forge,
 install.installer.liteloader=LiteLoader
 install.installer.not_installed=%s no está instalado
 install.installer.optifine=OptiFine
-install.installer.version=Versión %s
+install.installer.version=Versión %s: %s
 install.modpack=Instalar un modpack
 install.new_game=Instalar un juego nuevo
 install.new_game.already_exists=Esta versión ya existe.
@@ -153,7 +153,7 @@ install.installer.install_online.tooltip=Поддерживается устан
 install.installer.liteloader=LiteLoader
 install.installer.not_installed=%s не установлен
 install.installer.optifine=OptiFine
-install.installer.version=%s - версия
+install.installer.version=%s - версия: %s
 install.modpack=Установить модпак
 install.new_game=Установите новую игру
 install.new_game.already_exists=Эта версия уже существует.
@@ -150,9 +150,9 @@ install.installer.install_offline.tooltip=支援匯入已經下載好的 Forge/O
 install.installer.install_online=線上安裝
 install.installer.install_online.tooltip=支援安裝 Fabric、Forge、OptiFine、LiteLoader
 install.installer.liteloader=LiteLoader
-install.installer.not_installed=暫時不安裝 %s，可以點選此處安裝
+install.installer.not_installed=%s 版本: 不安裝
 install.installer.optifine=OptiFine
-install.installer.version=%s 版本
+install.installer.version=%s 版本: %s
 install.modpack=安裝整合包
 install.new_game=安裝新遊戲版本
 install.new_game.already_exists=此版本已經存在，請重新命名
@@ -326,7 +326,7 @@ world.time=yyyy年MM月dd日 HH:mm:ss
 profile=遊戲目錄
 profile.already_exists=該名稱已存在
 profile.default=目前目錄
-profile.home=官方啟動器
+profile.home=官方啟動器目錄
 profile.instance_directory=遊戲路徑
 profile.instance_directory.choose=選擇遊戲路徑
 profile.manage=遊戲目錄列表
@@ -150,9 +150,9 @@ install.installer.install_offline.tooltip=支持导入已经下载好的 Forge/O
 install.installer.install_online=在线安装
 install.installer.install_online.tooltip=支持安装 Fabric、Forge、OptiFine、LiteLoader
 install.installer.liteloader=LiteLoader
-install.installer.not_installed=暂不安装 %s，可以点击此处安装
+install.installer.not_installed=%s 版本: 不安装
 install.installer.optifine=OptiFine
-install.installer.version=%s 版本
+install.installer.version=%s 版本: %s
 install.modpack=安装整合包
 install.new_game=安装新游戏版本
 install.new_game.already_exists=此版本已经存在，请换一个名字
@@ -326,7 +326,7 @@ world.time=yyyy 年 MM 月 dd 日 HH:mm:ss
 profile=游戏目录
 profile.already_exists=该名称已存在
 profile.default=当前目录
-profile.home=官方启动器
+profile.home=官方启动器目录
 profile.instance_directory=游戏路径
 profile.instance_directory.choose=选择游戏路径
 profile.manage=游戏目录列表
@@ -17,23 +17,19 @@
 */
 package org.jackhuang.hmcl.download;

-import java.util.List;
-
 /**
 *
 * @author huangyuhui
 */
 public abstract class AbstractDependencyManager implements DependencyManager {

-    public abstract DownloadProvider getPrimaryDownloadProvider();
-
-    public abstract List<DownloadProvider> getPreferredDownloadProviders();
+    public abstract DownloadProvider getDownloadProvider();

    @Override
    public abstract DefaultCacheRepository getCacheRepository();

    @Override
    public VersionList<?> getVersionList(String id) {
-        return getPrimaryDownloadProvider().getVersionListById(id);
+        return getDownloadProvider().getVersionListById(id);
    }
 }
@@ -0,0 +1,81 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.download;
+
+import org.jackhuang.hmcl.util.io.NetworkUtils;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The download provider that changes the real download source in need.
+ *
+ * @author huangyuhui
+ */
+public class AdaptedDownloadProvider implements DownloadProvider {
+
+    private List<DownloadProvider> downloadProviderCandidates;
+
+    public void setDownloadProviderCandidates(List<DownloadProvider> downloadProviderCandidates) {
+        this.downloadProviderCandidates = new ArrayList<>(downloadProviderCandidates);
+    }
+
+    public DownloadProvider getPreferredDownloadProvider() {
+        List<DownloadProvider> d = downloadProviderCandidates;
+        if (d == null || d.isEmpty()) {
+            throw new IllegalStateException("No download provider candidate");
+        }
+        return d.get(0);
+    }
+
+    @Override
+    public String getVersionListURL() {
+        return getPreferredDownloadProvider().getVersionListURL();
+    }
+
+    @Override
+    public String getAssetBaseURL() {
+        return getPreferredDownloadProvider().getAssetBaseURL();
+    }
+
+    @Override
+    public String injectURL(String baseURL) {
+        return getPreferredDownloadProvider().injectURL(baseURL);
+    }
+
+    @Override
+    public List<URL> injectURLWithCandidates(String baseURL) {
+        List<DownloadProvider> d = downloadProviderCandidates;
+        List<URL> results = new ArrayList<>(d.size());
+        for (int i = 0; i < d.size(); i++) {
+            results.add(NetworkUtils.toURL(d.get(i).injectURL(baseURL)));
+        }
+        return results;
+    }
+
+    @Override
+    public VersionList<?> getVersionListById(String id) {
+        return getPreferredDownloadProvider().getVersionListById(id);
+    }
+
+    @Override
+    public int getConcurrency() {
+        return getPreferredDownloadProvider().getConcurrency();
+    }
+}
@@ -28,7 +28,6 @@ import org.jackhuang.hmcl.task.Task;

 import java.io.IOException;
 import java.nio.file.Path;
-import java.util.List;

 /**
 * Note: This class has no state.
@@ -39,13 +38,11 @@ public class DefaultDependencyManager extends AbstractDependencyManager {

    private final DefaultGameRepository repository;
    private final DownloadProvider downloadProvider;
-    private final List<DownloadProvider> preferredDownloadProviders;
    private final DefaultCacheRepository cacheRepository;

-    public DefaultDependencyManager(DefaultGameRepository repository, DownloadProvider downloadProvider, List<DownloadProvider> preferredDownloadProviders, DefaultCacheRepository cacheRepository) {
+    public DefaultDependencyManager(DefaultGameRepository repository, DownloadProvider downloadProvider, DefaultCacheRepository cacheRepository) {
        this.repository = repository;
        this.downloadProvider = downloadProvider;
-        this.preferredDownloadProviders = preferredDownloadProviders;
        this.cacheRepository = cacheRepository;
    }

@@ -55,15 +52,10 @@ public class DefaultDependencyManager extends AbstractDependencyManager {
    }

    @Override
-    public DownloadProvider getPrimaryDownloadProvider() {
+    public DownloadProvider getDownloadProvider() {
        return downloadProvider;
    }

-    @Override
-    public List<DownloadProvider> getPreferredDownloadProviders() {
-        return preferredDownloadProviders;
-    }
-
    @Override
    public DefaultCacheRepository getCacheRepository() {
        return cacheRepository;
@@ -32,21 +32,15 @@ import java.util.Map;
 public class DefaultGameBuilder extends GameBuilder {

    private final DefaultDependencyManager dependencyManager;
-    private final DownloadProvider downloadProvider;

    public DefaultGameBuilder(DefaultDependencyManager dependencyManager) {
        this.dependencyManager = dependencyManager;
-        this.downloadProvider = dependencyManager.getPrimaryDownloadProvider();
    }

    public DefaultDependencyManager getDependencyManager() {
        return dependencyManager;
    }

-    public DownloadProvider getDownloadProvider() {
-        return downloadProvider;
-    }
-
    @Override
    public Task<?> buildAsync() {
        List<String> stages = new ArrayList<>();
@@ -17,6 +17,13 @@
 */
 package org.jackhuang.hmcl.download;

+import org.jackhuang.hmcl.util.io.NetworkUtils;
+
+import java.net.URL;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
 /**
 * The service provider that provides Minecraft online file downloads.
 *
@@ -28,6 +35,10 @@ public interface DownloadProvider {

    String getAssetBaseURL();

+    default List<URL> getAssetObjectCandidates(String assetObjectLocation) {
+        return Collections.singletonList(NetworkUtils.toURL(getAssetBaseURL() + assetObjectLocation));
+    }
+
    /**
     * Inject into original URL provided by Mojang and Forge.
     *
@@ -40,9 +51,26 @@ public interface DownloadProvider {
    String injectURL(String baseURL);

    /**
-     * the specific version list that this download provider provides. i.e. "forge", "liteloader", "game", "optifine"
+     * Inject into original URL provided by Mojang and Forge.
     *
-     * @param id the id of specific version list that this download provider provides. i.e. "forge", "liteloader", "game", "optifine"
+     * Since there are many provided URLs that are written in JSONs and are unmodifiable,
+     * this method provides a way to change them.
+     *
+     * @param baseURL original URL provided by Mojang and Forge.
+     * @return the URL that is equivalent to [baseURL], but belongs to your own service provider.
+     */
+    default List<URL> injectURLWithCandidates(String baseURL) {
+        return Collections.singletonList(NetworkUtils.toURL(baseURL));
+    }
+
+    default List<URL> injectURLsWithCandidates(List<String> urls) {
+        return urls.stream().flatMap(url -> injectURLWithCandidates(url).stream()).collect(Collectors.toList());
+    }
+
+    /**
+     * the specific version list that this download provider provides. i.e. "fabric", "forge", "liteloader", "game", "optifine"
+     *
+     * @param id the id of specific version list that this download provider provides. i.e. "fabric", "forge", "liteloader", "game", "optifine"
     * @return the version list
     * @throws IllegalArgumentException if the version list does not exist
     */
@@ -35,7 +35,7 @@ public class RemoteVersion implements Comparable<RemoteVersion> {
    private final String libraryId;
    private final String gameVersion;
    private final String selfVersion;
-    private final String[] url;
+    private final List<String> urls;
    private final Type type;

    /**
@@ -43,10 +43,10 @@ public class RemoteVersion implements Comparable<RemoteVersion> {
     *
     * @param gameVersion the Minecraft version that this remote version suits.
     * @param selfVersion the version string of the remote version.
-     * @param url         the installer or universal jar URL.
+     * @param urls        the installer or universal jar original URL.
     */
-    public RemoteVersion(String libraryId, String gameVersion, String selfVersion, String... url) {
-        this(libraryId, gameVersion, selfVersion, Type.UNCATEGORIZED, url);
+    public RemoteVersion(String libraryId, String gameVersion, String selfVersion, List<String> urls) {
+        this(libraryId, gameVersion, selfVersion, Type.UNCATEGORIZED, urls);
    }

    /**
@@ -54,13 +54,13 @@ public class RemoteVersion implements Comparable<RemoteVersion> {
     *
     * @param gameVersion the Minecraft version that this remote version suits.
     * @param selfVersion the version string of the remote version.
-     * @param url         the installer or universal jar URL.
+     * @param urls        the installer or universal jar URL.
     */
-    public RemoteVersion(String libraryId, String gameVersion, String selfVersion, Type type, String... url) {
+    public RemoteVersion(String libraryId, String gameVersion, String selfVersion, Type type, List<String> urls) {
        this.libraryId = Objects.requireNonNull(libraryId);
        this.gameVersion = Objects.requireNonNull(gameVersion);
        this.selfVersion = Objects.requireNonNull(selfVersion);
-        this.url = Objects.requireNonNull(url);
+        this.urls = Objects.requireNonNull(urls);
        this.type = Objects.requireNonNull(type);
    }

@@ -76,8 +76,8 @@ public class RemoteVersion implements Comparable<RemoteVersion> {
        return selfVersion;
    }

-    public String[] getUrl() {
-        return url;
+    public List<String> getUrls() {
+        return urls;
    }

    public Type getVersionType() {
@@ -28,10 +28,8 @@ import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.GetTask;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.util.gson.JsonUtils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;

 import java.util.*;
-import java.util.stream.Collectors;

 /**
 * <b>Note</b>: Fabric should be installed first.
@@ -51,9 +49,7 @@ public final class FabricInstallTask extends Task<Version> {
        this.version = version;
        this.remote = remoteVersion;

-        launchMetaTask = new GetTask(dependencyManager.getPreferredDownloadProviders().stream()
-                .map(downloadProvider -> downloadProvider.injectURL(getLaunchMetaUrl(remote.getGameVersion(), remote.getSelfVersion())))
-                .map(NetworkUtils::toURL).collect(Collectors.toList()))
+        launchMetaTask = new GetTask(dependencyManager.getDownloadProvider().injectURLsWithCandidates(remoteVersion.getUrls()))
                .setCacheRepository(dependencyManager.getCacheRepository());
    }

@@ -90,10 +86,6 @@ public final class FabricInstallTask extends Task<Version> {
        dependencies.add(dependencyManager.checkLibraryCompletionAsync(getResult(), true));
    }

-    private static String getLaunchMetaUrl(String gameVersion, String loaderVersion) {
-        return String.format("https://meta.fabricmc.net/v2/versions/loader/%s/%s", gameVersion, loaderVersion);
-    }
-
    private Version getPatch(FabricInfo fabricInfo, String gameVersion, String loaderVersion) {
        JsonObject launcherMeta = fabricInfo.launcherMeta;
        Arguments arguments = new Arguments();
@@ -23,16 +23,18 @@ import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.Task;

+import java.util.List;
+
 public class FabricRemoteVersion extends RemoteVersion {
    /**
     * Constructor.
     *
     * @param gameVersion the Minecraft version that this remote version suits.
     * @param selfVersion the version string of the remote version.
-     * @param url         the installer or universal jar URL.
+     * @param urls        the installer or universal jar original URL.
     */
-    FabricRemoteVersion(String gameVersion, String selfVersion, String url) {
-        super(LibraryAnalyzer.LibraryType.FABRIC.getPatchId(), gameVersion, selfVersion, url);
+    FabricRemoteVersion(String gameVersion, String selfVersion, List<String> urls) {
+        super(LibraryAnalyzer.LibraryType.FABRIC.getPatchId(), gameVersion, selfVersion, urls);
    }

    @Override
@@ -28,6 +28,7 @@ import org.jetbrains.annotations.Nullable;
 import javax.xml.stream.XMLStreamException;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;

@@ -47,7 +48,7 @@ public final class FabricVersionList extends VersionList<FabricRemoteVersion> {
    public Task<?> refreshAsync() {
        return new Task<Void>() {
            @Override
-            public void execute() throws IOException, XMLStreamException {
+            public void execute() throws IOException {
                List<String> gameVersions = getGameVersions(GAME_META_URL);
                List<String> loaderVersions = getGameVersions(LOADER_META_URL);

@@ -56,7 +57,8 @@ public final class FabricVersionList extends VersionList<FabricRemoteVersion> {
                try {
                    for (String gameVersion : gameVersions)
                        for (String loaderVersion : loaderVersions)
-                            versions.put(gameVersion, new FabricRemoteVersion(gameVersion, loaderVersion, ""));
+                            versions.put(gameVersion, new FabricRemoteVersion(gameVersion, loaderVersion,
+                                    Collections.singletonList(getLaunchMetaUrl(gameVersion, loaderVersion))));
                } finally {
                    lock.writeLock().unlock();
                }
@@ -73,6 +75,10 @@ public final class FabricVersionList extends VersionList<FabricRemoteVersion> {
        }.getType()).stream().map(GameVersion::getVersion).collect(Collectors.toList());
    }

+    private static String getLaunchMetaUrl(String gameVersion, String loaderVersion) {
+        return String.format("https://meta.fabricmc.net/v2/versions/loader/%s/%s", gameVersion, loaderVersion);
+    }
+
    private static class GameVersion {
        private final String version;
        private final String maven;
@@ -102,8 +102,7 @@ public final class ForgeBMCLVersionList extends VersionList<ForgeRemoteVersion>
                        if (urls.isEmpty())
                            continue;
                        versions.put(gameVersion, new ForgeRemoteVersion(
-                                version.getGameVersion(), version.getVersion(), urls.toArray(new String[0])
-                        ));
+                                version.getGameVersion(), version.getVersion(), urls));
                    }
                } finally {
                    lock.writeLock().unlock();
@@ -18,6 +18,7 @@
 package org.jackhuang.hmcl.download.forge;

 import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.DependencyManager;
 import org.jackhuang.hmcl.download.VersionMismatchException;
 import org.jackhuang.hmcl.game.GameVersion;
 import org.jackhuang.hmcl.game.Version;
@@ -26,15 +27,15 @@ import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.util.gson.JsonUtils;
 import org.jackhuang.hmcl.util.io.CompressingUtils;
 import org.jackhuang.hmcl.util.io.FileUtils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
-import org.jackhuang.hmcl.util.versioning.VersionNumber;

 import java.io.IOException;
 import java.nio.file.FileSystem;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.*;
-import java.util.stream.Collectors;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Optional;

 import static org.jackhuang.hmcl.util.StringUtils.removePrefix;
 import static org.jackhuang.hmcl.util.StringUtils.removeSuffix;
@@ -68,9 +69,7 @@ public final class ForgeInstallTask extends Task<Version> {
        installer = Files.createTempFile("forge-installer", ".jar");

        dependent = new FileDownloadTask(
-                dependencyManager.getPreferredDownloadProviders().stream()
-                        .flatMap(downloadProvider -> Arrays.stream(remote.getUrl()).map(downloadProvider::injectURL))
-                        .map(NetworkUtils::toURL).collect(Collectors.toList()),
+                dependencyManager.getDownloadProvider().injectURLsWithCandidates(remote.getUrls()),
                installer.toFile(), null)
                .setCacheRepository(dependencyManager.getCacheRepository())
                .setCaching(true);
@@ -98,13 +97,45 @@ public final class ForgeInstallTask extends Task<Version> {
    }

    @Override
-    public void execute() {
-        if (VersionNumber.VERSION_COMPARATOR.compare("1.13", remote.getGameVersion()) <= 0)
+    public void execute() throws IOException, VersionMismatchException {
+        if (detectForgeInstallerType(dependencyManager, version, installer))
            dependency = new ForgeNewInstallTask(dependencyManager, version, remote.getSelfVersion(), installer);
        else
            dependency = new ForgeOldInstallTask(dependencyManager, version, remote.getSelfVersion(), installer);
    }

+    /**
+     * Detect Forge installer type.
+     *
+     * @param dependencyManager game repository
+     * @param version version.json
+     * @param installer the Forge installer, either the new or old one.
+     * @return true for new, false for old
+     * @throws IOException if unable to read compressed content of installer file, or installer file is corrupted, or the installer is not the one we want.
+     * @throws VersionMismatchException if required game version of installer does not match the actual one.
+     */
+    public static boolean detectForgeInstallerType(DependencyManager dependencyManager, Version version, Path installer) throws IOException, VersionMismatchException {
+        Optional<String> gameVersion = GameVersion.minecraftVersion(dependencyManager.getGameRepository().getVersionJar(version));
+        if (!gameVersion.isPresent()) throw new IOException();
+        try (FileSystem fs = CompressingUtils.createReadOnlyZipFileSystem(installer)) {
+            String installProfileText = FileUtils.readText(fs.getPath("install_profile.json"));
+            Map installProfile = JsonUtils.fromNonNullJson(installProfileText, Map.class);
+            if (installProfile.containsKey("spec")) {
+                ForgeNewInstallProfile profile = JsonUtils.fromNonNullJson(installProfileText, ForgeNewInstallProfile.class);
+                if (!gameVersion.get().equals(profile.getMinecraft()))
+                    throw new VersionMismatchException(profile.getMinecraft(), gameVersion.get());
+                return true;
+            } else if (installProfile.containsKey("install") && installProfile.containsKey("versionInfo")) {
+                ForgeInstallProfile profile = JsonUtils.fromNonNullJson(installProfileText, ForgeInstallProfile.class);
+                if (!gameVersion.get().equals(profile.getInstall().getMinecraft()))
+                    throw new VersionMismatchException(profile.getInstall().getMinecraft(), gameVersion.get());
+                return false;
+            } else {
+                throw new IOException();
+            }
+        }
+    }
+
    /**
     * Install Forge library from existing local file.
     * This method will try to identify this installer whether it is in old or new format.
@@ -23,15 +23,17 @@ import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.Task;

+import java.util.List;
+
 public class ForgeRemoteVersion extends RemoteVersion {
    /**
     * Constructor.
     *
     * @param gameVersion the Minecraft version that this remote version suits.
     * @param selfVersion the version string of the remote version.
-     * @param url         the installer or universal jar URL.
+     * @param url         the installer or universal jar original URL.
     */
-    public ForgeRemoteVersion(String gameVersion, String selfVersion, String... url) {
+    public ForgeRemoteVersion(String gameVersion, String selfVersion, List<String> url) {
        super(LibraryAnalyzer.LibraryType.FORGE.getPatchId(), gameVersion, selfVersion, url);
    }

@@ -26,7 +26,9 @@ import org.jackhuang.hmcl.util.gson.JsonUtils;
 import org.jackhuang.hmcl.util.io.NetworkUtils;
 import org.jackhuang.hmcl.util.versioning.VersionNumber;

-import java.util.*;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;

 /**
 *
@@ -76,13 +78,13 @@ public final class ForgeVersionList extends VersionList<ForgeRemoteVersion> {
                                    String classifier = version.getGameVersion() + "-" + version.getVersion()
                                            + (StringUtils.isNotBlank(version.getBranch()) ? "-" + version.getBranch() : "");
                                    String fileName = root.getArtifact() + "-" + classifier + "-" + file[1] + "." + file[0];
-                                    jar = downloadProvider.injectURL(root.getWebPath() + classifier + "/" + fileName);
+                                    jar = root.getWebPath() + classifier + "/" + fileName;
                                }

                            if (jar == null)
                                continue;
                            versions.put(gameVersion, new ForgeRemoteVersion(
-                                    version.getGameVersion(), version.getVersion(), jar
+                                    version.getGameVersion(), version.getVersion(), Collections.singletonList(jar)
                            ));
                        }
                    }
@@ -18,7 +18,6 @@
 package org.jackhuang.hmcl.download.game;

 import com.google.gson.JsonParseException;
-import com.google.gson.JsonSyntaxException;
 import org.jackhuang.hmcl.download.AbstractDependencyManager;
 import org.jackhuang.hmcl.game.AssetIndex;
 import org.jackhuang.hmcl.game.AssetIndexInfo;
@@ -30,7 +29,6 @@ import org.jackhuang.hmcl.util.CacheRepository;
 import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.gson.JsonUtils;
 import org.jackhuang.hmcl.util.io.FileUtils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;

 import java.io.File;
 import java.io.IOException;
@@ -39,7 +37,6 @@ import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.logging.Level;
-import java.util.stream.Collectors;

 /**
 *
@@ -112,10 +109,7 @@ public final class GameAssetDownloadTask extends Task<Void> {
                Logging.LOG.log(Level.WARNING, "Unable to calc hash value of file " + file.toPath(), e);
            }
            if (download) {
-                List<URL> urls = dependencyManager.getPreferredDownloadProviders().stream()
-                        .map(downloadProvider -> downloadProvider.getAssetBaseURL() + assetObject.getLocation())
-                        .map(NetworkUtils::toURL)
-                        .collect(Collectors.toList());
+                List<URL> urls = dependencyManager.getDownloadProvider().getAssetObjectCandidates(assetObject.getLocation());

                FileDownloadTask task = new FileDownloadTask(urls, file, new FileDownloadTask.IntegrityCheck("SHA-1", assetObject.getHash()));
                task.setName(assetObject.getHash());
@@ -22,7 +22,6 @@ import org.jackhuang.hmcl.game.AssetIndexInfo;
 import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.FileDownloadTask;
 import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.io.NetworkUtils;

 import java.io.File;
 import java.io.IOException;
@@ -65,7 +64,7 @@ public final class GameAssetIndexDownloadTask extends Task<Void> {
        // We should not check the hash code of asset index file since this file is not consistent
        // And Mojang will modify this file anytime. So assetIndex.hash might be outdated.
        dependencies.add(new FileDownloadTask(
-                NetworkUtils.toURL(dependencyManager.getPrimaryDownloadProvider().injectURL(assetIndexInfo.getUrl())),
+                dependencyManager.getDownloadProvider().injectURLWithCandidates(assetIndexInfo.getUrl()),
                assetIndexFile
        ).setCacheRepository(dependencyManager.getCacheRepository()));
    }
@@ -23,13 +23,11 @@ import org.jackhuang.hmcl.task.FileDownloadTask;
 import org.jackhuang.hmcl.task.FileDownloadTask.IntegrityCheck;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.util.CacheRepository;
-import org.jackhuang.hmcl.util.io.NetworkUtils;

 import java.io.File;
 import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.stream.Collectors;

 /**
 * Task to download Minecraft jar
@@ -59,9 +57,7 @@ public final class GameDownloadTask extends Task<Void> {
        File jar = dependencyManager.getGameRepository().getVersionJar(version);

        FileDownloadTask task = new FileDownloadTask(
-                dependencyManager.getPreferredDownloadProviders().stream()
-                        .map(downloadProvider -> downloadProvider.injectURL(version.getDownloadInfo().getUrl()))
-                        .map(NetworkUtils::toURL).collect(Collectors.toList()),
+                dependencyManager.getDownloadProvider().injectURLWithCandidates(version.getDownloadInfo().getUrl()),
                jar,
                IntegrityCheck.of(CacheRepository.SHA1, version.getDownloadInfo().getSha1()))
                .setCaching(true)
@@ -26,6 +26,7 @@ import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.util.Immutable;

 import java.util.Date;
+import java.util.List;

 /**
 *
@@ -37,7 +38,7 @@ public final class GameRemoteVersion extends RemoteVersion {
    private final ReleaseType type;
    private final Date time;

-    public GameRemoteVersion(String gameVersion, String selfVersion, String url, ReleaseType type, Date time) {
+    public GameRemoteVersion(String gameVersion, String selfVersion, List<String> url, ReleaseType type, Date time) {
        super(LibraryAnalyzer.LibraryType.MINECRAFT.getPatchId(), gameVersion, selfVersion, getReleaseType(type), url);
        this.type = type;
        this.time = time;
@@ -74,7 +74,7 @@ public final class GameVersionList extends VersionList<GameRemoteVersion> {
                        versions.put(remoteVersion.getGameVersion(), new GameRemoteVersion(
                                remoteVersion.getGameVersion(),
                                remoteVersion.getGameVersion(),
-                                remoteVersion.getUrl(),
+                                Collections.singletonList(remoteVersion.getUrl()),
                                remoteVersion.getType(), remoteVersion.getReleaseTime())
                        );
                    }
@@ -33,7 +33,7 @@ import org.tukaani.xz.XZInputStream;

 import java.io.*;
 import java.net.URL;
-import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.*;
@@ -42,7 +42,6 @@ import java.util.jar.JarInputStream;
 import java.util.jar.JarOutputStream;
 import java.util.jar.Pack200;
 import java.util.logging.Level;
-import java.util.stream.Collectors;

 import static org.jackhuang.hmcl.util.DigestUtils.digest;
 import static org.jackhuang.hmcl.util.Hex.encodeHex;
@@ -130,21 +129,15 @@ public class LibraryDownloadTask extends Task<Void> {
        }

        try {
-            URL packXz = NetworkUtils.toURL(dependencyManager.getPrimaryDownloadProvider().injectURL(url) + ".pack.xz");
+            URL packXz = NetworkUtils.toURL(dependencyManager.getDownloadProvider().injectURL(url) + ".pack.xz");
            if (NetworkUtils.urlExists(packXz)) {
-                List<URL> urls = dependencyManager.getPreferredDownloadProviders().stream()
-                        .map(downloadProvider -> downloadProvider.injectURL(url) + ".pack.xz")
-                        .map(NetworkUtils::toURL)
-                        .collect(Collectors.toList());
+                List<URL> urls = dependencyManager.getDownloadProvider().injectURLWithCandidates(url + ".pack.xz");
                task = new FileDownloadTask(urls, xzFile, null)
                        .setCacheRepository(cacheRepository)
                        .setCaching(true);
                xz = true;
            } else {
-                List<URL> urls = dependencyManager.getPreferredDownloadProviders().stream()
-                        .map(downloadProvider -> downloadProvider.injectURL(url))
-                        .map(NetworkUtils::toURL)
-                        .collect(Collectors.toList());
+                List<URL> urls = dependencyManager.getDownloadProvider().injectURLWithCandidates(url);
                task = new FileDownloadTask(urls, jar,
                        library.getDownload().getSha1() != null ? new IntegrityCheck("SHA-1", library.getDownload().getSha1()) : null)
                        .setCacheRepository(cacheRepository)
@@ -192,7 +185,7 @@ public class LibraryDownloadTask extends Task<Void> {
        while (entry != null) {
            byte[] eData = IOUtils.readFullyWithoutClosing(jar);
            if (entry.getName().equals("checksums.sha1")) {
-                hashes = new String(eData, Charset.forName("UTF-8")).split("\n");
+                hashes = new String(eData, StandardCharsets.UTF_8).split("\n");
            }
            if (!entry.isDirectory()) {
                files.put(entry.getName(), encodeHex(digest("SHA-1", eData)));
@@ -22,14 +22,11 @@ import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.download.VersionList;
 import org.jackhuang.hmcl.task.GetTask;
 import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.io.NetworkUtils;

 import java.io.IOException;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.stream.Collectors;

 /**
 *
@@ -46,9 +43,8 @@ public final class VersionJsonDownloadTask extends Task<String> {
        this.gameVersion = gameVersion;
        this.dependencyManager = dependencyManager;
        this.gameVersionList = dependencyManager.getVersionList("game");
-        
-        if (!gameVersionList.isLoaded())
-            dependents.add(gameVersionList.refreshAsync());
+
+        dependents.add(gameVersionList.loadAsync());

        setSignificance(TaskSignificance.MODERATE);
    }
@@ -67,10 +63,6 @@ public final class VersionJsonDownloadTask extends Task<String> {
    public void execute() throws IOException {
        RemoteVersion remoteVersion = gameVersionList.getVersion(gameVersion, gameVersion)
                .orElseThrow(() -> new IOException("Cannot find specific version " + gameVersion + " in remote repository"));
-        dependencies.add(new GetTask(
-                dependencyManager.getPreferredDownloadProviders().stream()
-                        .flatMap(downloadProvider -> Arrays.stream(remoteVersion.getUrl()).map(downloadProvider::injectURL))
-                        .map(NetworkUtils::toURL).collect(Collectors.toList())
-        ).storeTo(this::setResult));
+        dependencies.add(new GetTask(dependencyManager.getDownloadProvider().injectURLsWithCandidates(remoteVersion.getUrls())).storeTo(this::setResult));
    }
 }
@@ -101,7 +101,7 @@ public final class LiteLoaderBMCLVersionList extends VersionList<LiteLoaderRemot
                    }

                    versions.put(key, new LiteLoaderRemoteVersion(gameVersion,
-                            version, url,
+                            version, Collections.singletonList(url),
                            v.getTweakClass(), v.getLibraries()
                    ));
                }
@@ -62,7 +62,7 @@ public final class LiteLoaderInstallTask extends Task<Version> {
        Library library = new Library(
                new Artifact("com.mumfrey", "liteloader", remote.getSelfVersion()),
                "http://dl.liteloader.com/versions/",
-                new LibrariesDownloadInfo(new LibraryDownloadInfo(null, remote.getUrl()[0]))
+                new LibrariesDownloadInfo(new LibraryDownloadInfo(null, remote.getUrls().get(0)))
        );

        setResult(new Version(LibraryAnalyzer.LibraryType.LITELOADER.getPatchId(),
@@ -25,6 +25,7 @@ import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.Task;

 import java.util.Collection;
+import java.util.List;

 public class LiteLoaderRemoteVersion extends RemoteVersion {
    private final String tweakClass;
@@ -34,10 +35,10 @@ public class LiteLoaderRemoteVersion extends RemoteVersion {
     *
     * @param gameVersion the Minecraft version that this remote version suits.
     * @param selfVersion the version string of the remote version.
-     * @param url         the installer or universal jar URL.
+     * @param urls        the installer or universal jar original URL.
     */
-    LiteLoaderRemoteVersion(String gameVersion, String selfVersion, String url, String tweakClass, Collection<Library> libraries) {
-        super(LibraryAnalyzer.LibraryType.LITELOADER.getPatchId(), gameVersion, selfVersion, url);
+    LiteLoaderRemoteVersion(String gameVersion, String selfVersion, List<String> urls, String tweakClass, Collection<Library> libraries) {
+        super(LibraryAnalyzer.LibraryType.LITELOADER.getPatchId(), gameVersion, selfVersion, urls);

        this.tweakClass = tweakClass;
        this.libraries = libraries;
@@ -102,7 +102,7 @@ public final class LiteLoaderVersionList extends VersionList<LiteLoaderRemoteVer
                    }

                    versions.put(key, new LiteLoaderRemoteVersion(gameVersion,
-                            version, downloadProvider.injectURL(url),
+                            version, Collections.singletonList(url),
                            v.getTweakClass(), v.getLibraries()
                    ));
                }
@@ -77,7 +77,7 @@ public final class OptiFineBMCLVersionList extends VersionList<OptiFineRemoteVer
                            continue;

                        String gameVersion = VersionNumber.normalize(element.getGameVersion());
-                        versions.put(gameVersion, new OptiFineRemoteVersion(gameVersion, version, mirror, isPre));
+                        versions.put(gameVersion, new OptiFineRemoteVersion(gameVersion, version, Collections.singletonList(mirror), isPre));
                    }
                } finally {
                    lock.writeLock().unlock();
@@ -25,7 +25,6 @@ import org.jackhuang.hmcl.task.FileDownloadTask;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.util.io.CompressingUtils;
 import org.jackhuang.hmcl.util.io.FileUtils;
-import org.jackhuang.hmcl.util.io.NetworkUtils;
 import org.jackhuang.hmcl.util.platform.JavaVersion;
 import org.jackhuang.hmcl.util.platform.SystemUtils;
 import org.jenkinsci.constant_pool_scanner.ConstantPool;
@@ -81,7 +80,7 @@ public final class OptiFineInstallTask extends Task<Version> {
                new Artifact("optifine", "OptiFine", mavenVersion, "installer"), null,
                new LibrariesDownloadInfo(new LibraryDownloadInfo(
                        "optifine/OptiFine/" + mavenVersion + "/OptiFine-" + mavenVersion + "-installer.jar",
-                        remote.getUrl()[0]))
+                        remote.getUrls().get(0).toString()))
        );
    }

@@ -96,9 +95,7 @@ public final class OptiFineInstallTask extends Task<Version> {

        if (installer == null) {
            dependents.add(new FileDownloadTask(
-                    dependencyManager.getPreferredDownloadProviders().stream()
-                            .flatMap(downloadProvider -> Arrays.stream(remote.getUrl()).map(downloadProvider::injectURL))
-                            .map(NetworkUtils::toURL).collect(Collectors.toList()),
+                    dependencyManager.getDownloadProvider().injectURLsWithCandidates(remote.getUrls()),
                    dest.toFile(), null)
                    .setCacheRepository(dependencyManager.getCacheRepository())
                    .setCaching(true));
@@ -231,7 +228,7 @@ public final class OptiFineInstallTask extends Task<Version> {
                throw new VersionMismatchException(mcVersion, gameVersion.get());

            return new OptiFineInstallTask(dependencyManager, version,
-                    new OptiFineRemoteVersion(mcVersion,  ofEdition + "_" + ofRelease, "", false), installer);
+                    new OptiFineRemoteVersion(mcVersion,  ofEdition + "_" + ofRelease, Collections.singletonList(""), false), installer);
        }
    }
 }
@@ -23,12 +23,12 @@ import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.task.Task;

-import java.util.function.Supplier;
+import java.util.List;

 public class OptiFineRemoteVersion extends RemoteVersion {

-    public OptiFineRemoteVersion(String gameVersion, String selfVersion, String url, boolean snapshot) {
-        super(LibraryAnalyzer.LibraryType.OPTIFINE.getPatchId(), gameVersion, selfVersion, snapshot ? Type.SNAPSHOT : Type.RELEASE, url);
+    public OptiFineRemoteVersion(String gameVersion, String selfVersion, List<String> urls, boolean snapshot) {
+        super(LibraryAnalyzer.LibraryType.OPTIFINE.getPatchId(), gameVersion, selfVersion, snapshot ? Type.SNAPSHOT : Type.RELEASE, urls);
    }

    @Override
@@ -283,9 +283,18 @@ public class DefaultLauncher extends Launcher {

        File runDirectory = repository.getRunDirectory(version.getId());

-        if (StringUtils.isNotBlank(options.getPreLaunchCommand()))
-            new ProcessBuilder(options.getPreLaunchCommand())
+        if (StringUtils.isNotBlank(options.getPreLaunchCommand())) {
+            String versionName = Optional.ofNullable(options.getVersionName()).orElse(version.getId());
+            String preLaunchCommand = options.getPreLaunchCommand()
+                    .replace("$INST_NAME", versionName)
+                    .replace("$INST_ID", versionName)
+                    .replace("$INST_DIR", repository.getVersionRoot(version.getId()).getAbsolutePath())
+                    .replace("$INST_MC_DIR", repository.getRunDirectory(version.getId()).getAbsolutePath())
+                    .replace("$INST_JAVA", options.getJava().getBinary().toString());
+
+            new ProcessBuilder(preLaunchCommand)
                    .directory(runDirectory).start().waitFor();
+        }

        Process process;
        try {
@@ -119,6 +119,15 @@ public class FileDownloadTask extends Task<Void> {
        this(Collections.singletonList(url), file, integrityCheck, retry);
    }

+    /**
+     * Constructor.
+     * @param urls urls of remote file, will be attempted in order.
+     * @param file the location that download to.
+     */
+    public FileDownloadTask(List<URL> urls, File file) {
+        this(urls, file, null);
+    }
+
    /**
     * Constructor.
     * @param urls urls of remote file, will be attempted in order.
@@ -214,11 +214,11 @@ public final class NetworkUtils {
    }

    public static boolean urlExists(URL url) throws IOException {
-        try (InputStream stream = url.openStream()) {
-            return true;
-        } catch (FileNotFoundException e) {
-            return false;
-        }
+        HttpURLConnection con = createConnection(url);
+        con = resolveConnection(con);
+        int responseCode = con.getResponseCode();
+        con.disconnect();
+        return responseCode / 100 == 2;
    }

    // ==== Shortcut methods for encoding/decoding URLs in UTF-8 ====
@@ -17,7 +17,12 @@
 */
 package org.jackhuang.hmcl.util.javafx;

-import static org.jackhuang.hmcl.util.Pair.pair;
+import javafx.beans.InvalidationListener;
+import javafx.beans.WeakInvalidationListener;
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.Property;
+import javafx.collections.ObservableList;
+import javafx.scene.control.*;

 import java.util.Objects;
 import java.util.Optional;
@@ -25,16 +30,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Consumer;
 import java.util.function.Function;

-import javafx.beans.InvalidationListener;
-import javafx.beans.WeakInvalidationListener;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.Property;
-import javafx.collections.ObservableList;
-import javafx.scene.control.CheckBox;
-import javafx.scene.control.ComboBox;
-import javafx.scene.control.SelectionModel;
-import javafx.scene.control.Toggle;
-import javafx.scene.control.ToggleGroup;
+import static org.jackhuang.hmcl.util.Pair.pair;

 /**
 * @author yushijinhun
@@ -126,7 +122,7 @@ public final class ExtendedProperties {

    // ==== CheckBox ====
    @SuppressWarnings("unchecked")
-    public static ObjectProperty<Boolean> reservedSelectedPropertyFor(CheckBox checkbox) {
+    public static ObjectProperty<Boolean> reversedSelectedPropertyFor(CheckBox checkbox) {
        return (ObjectProperty<Boolean>) checkbox.getProperties().computeIfAbsent(
                PROP_PREFIX + ".checkbox.reservedSelected",
                any -> new MappedProperty<Boolean, Boolean>(checkbox, "ext.reservedSelected",
@@ -6,6 +6,11 @@ HMCL is a Minecraft launcher which supports Mod management, game customizing, au

 No plugin API is provided.

+## Download
+Download the latest version [from the official website](https://hmcl.huangyuhui.net/download)
+
+Note: Github releases are outdated.
+
 ## License
 The software is distributed under [GPL v3](https://www.gnu.org/licenses/gpl-3.0.html) with additional terms.
Author	SHA1	Message	Date
huanghongxun	c28dfd0ae0	add: support change download provider in install wizard	2020-04-12 00:41:12 +08:00
huanghongxun	986a430e92	refactor: ensure that VersionLists fetch original download URL	2020-04-12 00:41:12 +08:00
huanghongxun	80f27f5ea4	alt: navigate to game version list when no versions exist	2020-04-12 00:41:03 +08:00
huanghongxun	4c44a3c410	alt: change description of uninstalled libraries	2020-04-12 00:40:53 +08:00
huanghongxun	14cfd6abeb	add: support variables in prelaunch command which is supported by MultiMC. Closes #698	2020-04-08 21:18:25 +08:00
huanghongxun	b957ca1931	fix: cannot download library when .pack.xz responded not 404	2020-04-08 21:17:21 +08:00
huanghongxun	9372d818a5	alt: no smooth scrolling any longer	2020-04-07 16:32:29 +08:00
huanghongxun	aee9c9bb32	alt: dialog covers title bar now	2020-04-07 16:32:29 +08:00
huanghongxun	5ed42d1654	alt: remove background of some pages	2020-04-07 16:32:29 +08:00
huanghongxun	dd94d2254f	alt: adjust window border	2020-04-07 16:32:29 +08:00
huanghongxun	bf4c831047	fix: forge 2852	2020-04-07 16:32:29 +08:00
Yuhui Huang	33df069803	Merge pull request #694 from Rowisi/Rowisi-patch-1 add up-to-date download link	2020-04-06 17:43:02 +08:00
Rowisi	191b88ab2a	add up-to-date download link	2020-04-05 02:15:13 +01:00