First version of the Forms rewrite

The next version will split the implementation from the api

common/pom.xml

@@ -15,7 +15,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.2</version>
+            <version>2.8.5</version>
             <scope>compile</scope>
         </dependency>
         <dependency>

common/src/main/java/org/geysermc/common/form/CustomForm.java

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form;
+
+import com.google.gson.annotations.JsonAdapter;
+import lombok.Getter;
+import org.geysermc.common.form.component.*;
+import org.geysermc.common.form.response.CustomFormResponse;
+import org.geysermc.common.form.util.FormAdaptor;
+import org.geysermc.common.form.util.FormImage;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+@Getter
+@JsonAdapter(FormAdaptor.class)
+public final class CustomForm extends Form {
+    private final String title;
+    private final FormImage icon;
+    private final List<Component> content;
+
+    private CustomForm(String title, FormImage icon, List<Component> content) {
+        super(Form.Type.CUSTOM_FORM);
+
+        this.title = title;
+        this.icon = icon;
+        this.content = Collections.unmodifiableList(content);
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static CustomForm of(String title, FormImage icon, List<Component> content) {
+        return new CustomForm(title, icon, content);
+    }
+
+    public CustomFormResponse parseResponse(String data) {
+        if (isClosed(data)) {
+            return CustomFormResponse.closed();
+        }
+        return CustomFormResponse.of(this, data);
+    }
+
+    public static final class Builder extends Form.Builder<Builder, CustomForm> {
+        private final List<Component> components = new ArrayList<>();
+        private FormImage icon;
+
+        public Builder icon(FormImage.Type type, String data) {
+            icon = FormImage.of(type, data);
+            return this;
+        }
+
+        public Builder iconPath(String path) {
+            return icon(FormImage.Type.PATH, path);
+        }
+
+        public Builder iconUrl(String url) {
+            return icon(FormImage.Type.URL, url);
+        }
+
+        public Builder component(Component component) {
+            components.add(component);
+            return this;
+        }
+
+        public Builder dropdown(DropdownComponent.Builder dropdownBuilder) {
+            return component(dropdownBuilder.translateAndBuild(this::translate));
+        }
+
+        public Builder dropdown(String text, int defaultOption, String... options) {
+            List<String> optionsList = new ArrayList<>();
+            for (String option : options) {
+                optionsList.add(translate(option));
+            }
+            return component(DropdownComponent.of(translate(text), optionsList, defaultOption));
+        }
+
+        public Builder dropdown(String text, String... options) {
+            return dropdown(text, -1, options);
+        }
+
+        public Builder input(String text, String placeholder, String defaultText) {
+            return component(InputComponent.of(
+                    translate(text), translate(placeholder), translate(defaultText)
+            ));
+        }
+
+        public Builder input(String text, String placeholder) {
+            return component(InputComponent.of(translate(text), translate(placeholder)));
+        }
+
+        public Builder input(String text) {
+            return component(InputComponent.of(translate(text)));
+        }
+
+        public Builder label(String text) {
+            return component(LabelComponent.of(translate(text)));
+        }
+
+        public Builder slider(String text, float min, float max, int step, float defaultValue) {
+            return component(SliderComponent.of(text, min, max, step, defaultValue));
+        }
+
+        public Builder slider(String text, float min, float max, int step) {
+            return slider(text, min, max, step, -1);
+        }
+
+        public Builder slider(String text, float min, float max, float defaultValue) {
+            return slider(text, min, max, -1, defaultValue);
+        }
+
+        public Builder slider(String text, float min, float max) {
+            return slider(text, min, max, -1, -1);
+        }
+
+        public Builder stepSlider(StepSliderComponent.Builder stepSliderBuilder) {
+            return component(stepSliderBuilder.translateAndBuild(this::translate));
+        }
+
+        public Builder stepSlider(String text, int defaultStep, String... steps) {
+            List<String> stepsList = new ArrayList<>();
+            for (String option : steps) {
+                stepsList.add(translate(option));
+            }
+            return component(StepSliderComponent.of(translate(text), stepsList, defaultStep));
+        }
+
+        public Builder stepSlider(String text, String... steps) {
+            return stepSlider(text, -1, steps);
+        }
+
+        public Builder toggle(String text, boolean defaultValue) {
+            return component(ToggleComponent.of(translate(text), defaultValue));
+        }
+
+        public Builder toggle(String text) {
+            return component(ToggleComponent.of(translate(text)));
+        }
+
+        @Override
+        public CustomForm build() {
+            CustomForm form = of(title, icon, components);
+            if (biResponseHandler != null) {
+                form.setResponseHandler(response -> biResponseHandler.accept(form, response));
+                return form;
+            }
+
+            form.setResponseHandler(responseHandler);
+            return form;
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/Form.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form;
+
+import com.google.gson.Gson;
+import com.google.gson.annotations.SerializedName;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+import org.geysermc.common.form.response.FormResponse;
+
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+import java.util.function.Consumer;
+
+@Getter
+public abstract class Form {
+    protected static final Gson GSON = new Gson();
+    private final Type type;
+
+    @Getter(AccessLevel.NONE)
+    protected String hardcodedJsonData = null;
+
+    @Setter protected Consumer<String> responseHandler;
+
+    public Form(Type type) {
+        this.type = type;
+    }
+
+    public String getJsonData() {
+        if (hardcodedJsonData != null) {
+            return hardcodedJsonData;
+        }
+        return GSON.toJson(this);
+    }
+
+    public abstract FormResponse parseResponse(String response);
+
+    @SuppressWarnings("unchecked")
+    public <T extends FormResponse> T parseResponseAs(String response) {
+        return (T) parseResponse(response);
+    }
+
+    public boolean isClosed(String response) {
+        return response == null || response.isEmpty() || response.equalsIgnoreCase("null");
+    }
+
+    @Getter
+    @RequiredArgsConstructor
+    public enum Type {
+        @SerializedName("form")
+        SIMPLE_FORM(SimpleForm.class),
+        @SerializedName("modal")
+        MODAL_FORM(ModalForm.class),
+        @SerializedName("custom_form")
+        CUSTOM_FORM(CustomForm.class);
+
+        private static final Type[] VALUES = values();
+        private final Class<? extends Form> typeClass;
+
+        public static Type getByOrdinal(int ordinal) {
+            return ordinal < VALUES.length ? VALUES[ordinal] : null;
+        }
+    }
+
+    public static abstract class Builder<T extends Builder<T, F>, F extends Form> {
+        protected String title = "";
+
+        protected BiFunction<String, String, String> translationHandler = null;
+        protected BiConsumer<F, String> biResponseHandler;
+        protected Consumer<String> responseHandler;
+        protected String locale;
+
+        public T title(String title) {
+            this.title = translate(title);
+            return self();
+        }
+
+        public T translator(BiFunction<String, String, String> translator, String locale) {
+            this.translationHandler = translator;
+            this.locale = locale;
+            return title(title);
+        }
+
+        public T translator(BiFunction<String, String, String> translator) {
+            return translator(translator, locale);
+        }
+
+        public T responseHandler(BiConsumer<F, String> responseHandler) {
+            biResponseHandler = responseHandler;
+            return self();
+        }
+
+        public T responseHandler(Consumer<String> responseHandler) {
+            this.responseHandler = responseHandler;
+            return self();
+        }
+
+        public abstract F build();
+
+        protected String translate(String text) {
+            if (translationHandler != null && text != null && !text.isEmpty()) {
+                return translationHandler.apply(text, locale);
+            }
+            return text;
+        }
+
+        @SuppressWarnings("unchecked")
+        protected T self() {
+            return (T) this;
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/ModalForm.java

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form;
+
+import com.google.gson.annotations.JsonAdapter;
+import lombok.Getter;
+import org.geysermc.common.form.response.ModalFormResponse;
+import org.geysermc.common.form.util.FormAdaptor;
+
+@Getter
+@JsonAdapter(FormAdaptor.class)
+public class ModalForm extends Form {
+    private final String title;
+    private final String content;
+    private final String button1;
+    private final String button2;
+
+    private ModalForm(String title, String content, String button1, String button2) {
+        super(Type.MODAL_FORM);
+
+        this.title = title;
+        this.content = content;
+        this.button1 = button1;
+        this.button2 = button2;
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static ModalForm of(String title, String content, String button1, String button2) {
+        return new ModalForm(title, content, button1, button2);
+    }
+
+    public ModalFormResponse parseResponse(String data) {
+        if (isClosed(data)) {
+            return ModalFormResponse.closed();
+        }
+
+        if ("true".equals(data)) {
+            return ModalFormResponse.of(0, button1);
+        } else if ("false".equals(data)) {
+            return ModalFormResponse.of(1, button2);
+        }
+        return ModalFormResponse.invalid();
+    }
+
+    public static final class Builder extends Form.Builder<Builder, ModalForm> {
+        private String content;
+        private String button1;
+        private String button2;
+
+        public Builder content(String content) {
+            this.content = translate(content);
+            return this;
+        }
+
+        public Builder button1(String button1) {
+            this.button1 = translate(button1);
+            return this;
+        }
+
+        public Builder button2(String button2) {
+            this.button2 = translate(button2);
+            return this;
+        }
+
+        @Override
+        public ModalForm build() {
+            ModalForm form = of(title, content, button1, button2);
+            if (biResponseHandler != null) {
+                form.setResponseHandler(response -> biResponseHandler.accept(form, response));
+                return form;
+            }
+
+            form.setResponseHandler(responseHandler);
+            return form;
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/SimpleForm.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form;
+
+import com.google.gson.annotations.JsonAdapter;
+import lombok.Getter;
+import org.geysermc.common.form.component.ButtonComponent;
+import org.geysermc.common.form.response.SimpleFormResponse;
+import org.geysermc.common.form.util.FormAdaptor;
+import org.geysermc.common.form.util.FormImage;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+@Getter
+@JsonAdapter(FormAdaptor.class)
+public final class SimpleForm extends Form {
+    private final String title;
+    private final String content;
+    private final List<ButtonComponent> buttons;
+
+    private SimpleForm(String title, String content, List<ButtonComponent> buttons) {
+        super(Type.SIMPLE_FORM);
+
+        this.title = title;
+        this.content = content;
+        this.buttons = Collections.unmodifiableList(buttons);
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static SimpleForm of(String title, String content, List<ButtonComponent> buttons) {
+        return new SimpleForm(title, content, buttons);
+    }
+
+    public SimpleFormResponse parseResponse(String data) {
+        if (isClosed(data)) {
+            return SimpleFormResponse.closed();
+        }
+
+        int buttonId;
+        try {
+            buttonId = Integer.parseInt(data);
+        } catch (Exception exception) {
+            return SimpleFormResponse.invalid();
+        }
+
+        if (buttonId >= buttons.size()) {
+            return SimpleFormResponse.invalid();
+        }
+
+        return SimpleFormResponse.of(buttonId, buttons.get(buttonId));
+    }
+
+    public static final class Builder extends Form.Builder<Builder, SimpleForm> {
+        private final List<ButtonComponent> buttons = new ArrayList<>();
+        private String content;
+
+        public Builder content(String content) {
+            this.content = translate(content);
+            return this;
+        }
+
+        public Builder button(String text, FormImage.Type type, String data) {
+            buttons.add(ButtonComponent.of(translate(text), type, data));
+            return this;
+        }
+
+        public Builder button(String text, FormImage image) {
+            buttons.add(ButtonComponent.of(translate(text), image));
+            return this;
+        }
+
+        public Builder button(String text) {
+            buttons.add(ButtonComponent.of(translate(text)));
+            return this;
+        }
+
+        @Override
+        public SimpleForm build() {
+            SimpleForm form = of(title, content, buttons);
+            if (biResponseHandler != null) {
+                form.setResponseHandler(response -> biResponseHandler.accept(form, response));
+                return form;
+            }
+
+            form.setResponseHandler(responseHandler);
+            return form;
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/component/ButtonComponent.java

@@ -23,35 +23,28 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.button;
+package org.geysermc.common.form.component;
 
+import lombok.AccessLevel;
 import lombok.Getter;
-import lombok.Setter;
-
-public class FormButton {
+import lombok.RequiredArgsConstructor;
+import org.geysermc.common.form.util.FormImage;
 
 @Getter
-    @Setter
-    private String text;
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
+public final class ButtonComponent {
+    private final String text;
+    private final FormImage image;
 
-    @Getter
-    private FormImage image;
-
-    public FormButton(String text) {
-        this.text = text;
+    public static ButtonComponent of(String text, FormImage image) {
+        return new ButtonComponent(text, image);
     }
 
-    public FormButton(String text, FormImage image) {
-        this.text = text;
-
-        if (image.getData() != null && !image.getData().isEmpty()) {
-            this.image = image;
-        }
+    public static ButtonComponent of(String text, FormImage.Type type, String data) {
+        return of(text, FormImage.of(type, data));
     }
 
-    public void setImage(FormImage image) {
-        if (image.getData() != null && !image.getData().isEmpty()) {
-            this.image = image;
-        }
+    public static ButtonComponent of(String text) {
+        return of(text, null);
     }
 }

common/src/main/java/org/geysermc/common/form/component/Component.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.component;
+
+import com.google.gson.annotations.SerializedName;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+import java.util.Objects;
+
+@Getter
+public abstract class Component {
+    private final Type type;
+    private final String text;
+
+    Component(Type type, String text) {
+        Objects.requireNonNull(type, "Type cannot be null");
+        Objects.requireNonNull(text, "Text cannot be null");
+
+        this.type = type;
+        this.text = text;
+    }
+
+    @Getter
+    @RequiredArgsConstructor
+    public enum Type {
+        @SerializedName("dropdown")
+        DROPDOWN(DropdownComponent.class),
+        @SerializedName("input")
+        INPUT(InputComponent.class),
+        @SerializedName("label")
+        LABEL(LabelComponent.class),
+        @SerializedName("slider")
+        SLIDER(SliderComponent.class),
+        @SerializedName("step_slider")
+        STEP_SLIDER(StepSliderComponent.class),
+        @SerializedName("toggle")
+        TOGGLE(ToggleComponent.class);
+
+        private static final Type[] VALUES = values();
+
+        private final String name = name().toLowerCase();
+        private final Class<? extends Component> componentClass;
+
+        public static Type getByName(String name) {
+            for (Type type : VALUES) {
+                if (type.name.equals(name)) {
+                    return type;
+                }
+            }
+            return null;
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/component/DropdownComponent.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.component;
+
+import com.google.gson.annotations.SerializedName;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Function;
+
+@Getter
+public class DropdownComponent extends Component {
+    private final List<String> options;
+    @SerializedName("default")
+    private final int defaultOption;
+
+    private DropdownComponent(String text, List<String> options, int defaultOption) {
+        super(Type.DROPDOWN, text);
+        this.options = Collections.unmodifiableList(options);
+        this.defaultOption = defaultOption;
+    }
+
+    public static DropdownComponent of(String text, List<String> options, int defaultOption) {
+        if (defaultOption == -1 || defaultOption >= options.size()) {
+            defaultOption = 0;
+        }
+        return new DropdownComponent(text, options, defaultOption);
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static Builder builder(String text) {
+        return builder().text(text);
+    }
+
+    public static class Builder {
+        private final List<String> options = new ArrayList<>();
+        private String text;
+        private int defaultOption = 0;
+
+        public Builder text(String text) {
+            this.text = text;
+            return this;
+        }
+
+        public Builder option(String option, boolean isDefault) {
+            options.add(option);
+            if (isDefault) {
+                defaultOption = options.size() - 1;
+            }
+            return this;
+        }
+
+        public Builder option(String option) {
+            return option(option, false);
+        }
+
+        public Builder defaultOption(int defaultOption) {
+            this.defaultOption = defaultOption;
+            return this;
+        }
+
+        public DropdownComponent build() {
+            return of(text, options, defaultOption);
+        }
+
+        public DropdownComponent translateAndBuild(Function<String, String> translator) {
+            for (int i = 0; i < options.size(); i++) {
+                options.set(i, translator.apply(options.get(i)));
+            }
+
+            return of(translator.apply(text), options, defaultOption);
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/component/InputComponent.java

@@ -23,30 +23,32 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.component;
+package org.geysermc.common.form.component;
 
+import com.google.gson.annotations.SerializedName;
 import lombok.Getter;
-import lombok.Setter;
-
-public class InputComponent extends FormComponent {
 
 @Getter
-    @Setter
-    private String text;
+public class InputComponent extends Component {
+    private final String placeholder;
+    @SerializedName("default")
+    private final String defaultText;
 
-    @Getter
-    @Setter
-    private String placeholder;
-
-    @Getter
-    @Setter
-    private String defaultText;
-
-    public InputComponent(String text, String placeholder, String defaultText) {
-        super("input");
-
-        this.text = text;
+    private InputComponent(String text, String placeholder, String defaultText) {
+        super(Type.INPUT, text);
         this.placeholder = placeholder;
         this.defaultText = defaultText;
     }
+
+    public static InputComponent of(String text, String placeholder, String defaultText) {
+        return new InputComponent(text, placeholder, defaultText);
+    }
+
+    public static InputComponent of(String text, String placeholder) {
+        return new InputComponent(text, placeholder, "");
+    }
+
+    public static InputComponent of(String text) {
+        return new InputComponent(text, "", "");
+    }
 }

common/src/main/java/org/geysermc/common/form/component/LabelComponent.java

@@ -23,20 +23,17 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.component;
+package org.geysermc.common.form.component;
 
 import lombok.Getter;
-import lombok.Setter;
-
-public class LabelComponent extends FormComponent {
 
 @Getter
-    @Setter
-    private String text;
+public class LabelComponent extends Component {
+    private LabelComponent(String text) {
+        super(Type.LABEL, text);
+    }
 
-    public LabelComponent(String text) {
-        super("label");
-
-        this.text = text;
+    public static LabelComponent of(String text) {
+        return new LabelComponent(text);
     }
 }

common/src/main/java/org/geysermc/common/form/component/SliderComponent.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.component;
+
+import com.google.gson.annotations.SerializedName;
+import lombok.Getter;
+
+@Getter
+public final class SliderComponent extends Component {
+    private final float min;
+    private final float max;
+    private final int step;
+    @SerializedName("default")
+    private final float defaultValue;
+
+    private SliderComponent(String text, float min, float max, int step, float defaultValue) {
+        super(Type.SLIDER, text);
+        this.min = min;
+        this.max = max;
+        this.step = step;
+        this.defaultValue = defaultValue;
+    }
+
+    public static SliderComponent of(String text, float min, float max, int step, float defaultValue) {
+        min = Math.max(min, 0f);
+        max = Math.max(max, min);
+
+        if (step < 1) {
+            step = 1;
+        }
+
+        if (defaultValue == -1f) {
+            defaultValue = (int) Math.floor(min + max / 2D);
+        }
+
+        return new SliderComponent(text, min, max, step, defaultValue);
+    }
+
+    public static SliderComponent of(String text, float min, float max, int step) {
+        return of(text, min, max, step, -1);
+    }
+
+    public static SliderComponent of(String text, float min, float max, float defaultValue) {
+        return of(text, min, max, -1, defaultValue);
+    }
+
+    public static SliderComponent of(String text, float min, float max) {
+        return of(text, min, max, -1, -1);
+    }
+}

common/src/main/java/org/geysermc/common/form/component/StepSliderComponent.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.component;
+
+import com.google.gson.annotations.SerializedName;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Function;
+
+@Getter
+public final class StepSliderComponent extends Component {
+    private final List<String> steps;
+    @SerializedName("default")
+    private final int defaultStep;
+
+    private StepSliderComponent(String text, List<String> steps, int defaultStep) {
+        super(Type.STEP_SLIDER, text);
+        this.steps = Collections.unmodifiableList(steps);
+        this.defaultStep = defaultStep;
+    }
+
+    public static StepSliderComponent of(String text, List<String> steps, int defaultStep) {
+        if (text == null) {
+            text = "";
+        }
+
+        if (defaultStep >= steps.size() || defaultStep == -1) {
+            defaultStep = 0;
+        }
+
+        return new StepSliderComponent(text, steps, defaultStep);
+    }
+
+    public static StepSliderComponent of(String text, int defaultStep, String... steps) {
+        return of(text, Arrays.asList(steps), defaultStep);
+    }
+
+    public static StepSliderComponent of(String text, String... steps) {
+        return of(text, 0, steps);
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static Builder builder(String text) {
+        return builder().text(text);
+    }
+
+    public static final class Builder {
+        private final List<String> steps = new ArrayList<>();
+        private String text;
+        private int defaultStep;
+
+        public Builder text(String text) {
+            this.text = text;
+            return this;
+        }
+
+        public Builder step(String step, boolean defaultStep) {
+            steps.add(step);
+            if (defaultStep) {
+                this.defaultStep = steps.size() - 1;
+            }
+            return this;
+        }
+
+        public Builder step(String step) {
+            return step(step, false);
+        }
+
+        public Builder defaultStep(int defaultStep) {
+            this.defaultStep = defaultStep;
+            return this;
+        }
+
+        public StepSliderComponent build() {
+            return of(text, steps, defaultStep);
+        }
+
+        public StepSliderComponent translateAndBuild(Function<String, String> translator) {
+            for (int i = 0; i < steps.size(); i++) {
+                steps.set(i, translator.apply(steps.get(i)));
+            }
+
+            return of(translator.apply(text), steps, defaultStep);
+        }
+    }
+}

common/src/main/java/org/geysermc/common/form/component/ToggleComponent.java

@@ -23,29 +23,26 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.component;
+package org.geysermc.common.form.component;
 
+import com.google.gson.annotations.SerializedName;
 import lombok.Getter;
-import lombok.Setter;
-
-public class ToggleComponent extends FormComponent {
 
 @Getter
-    @Setter
-    private String text;
+public class ToggleComponent extends Component {
+    @SerializedName("default")
+    private final boolean defaultValue;
 
-    @Getter
-    @Setter
-    private boolean defaultValue;
-
-    public ToggleComponent(String text) {
-        this(text, false);
-    }
-
-    public ToggleComponent(String text, boolean defaultValue) {
-        super("toggle");
-
-        this.text = text;
+    private ToggleComponent(String text, boolean defaultValue) {
+        super(Type.TOGGLE, text);
         this.defaultValue = defaultValue;
     }
+
+    public static ToggleComponent of(String text, boolean defaultValue) {
+        return new ToggleComponent(text, defaultValue);
+    }
+
+    public static ToggleComponent of(String text) {
+        return of(text, false);
+    }
 }

common/src/main/java/org/geysermc/common/form/response/CustomFormResponse.java

@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.response;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonPrimitive;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.ToString;
+import org.geysermc.common.form.CustomForm;
+import org.geysermc.common.form.component.Component;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+@Getter
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
+@ToString
+public class CustomFormResponse implements FormResponse {
+    private static final Gson GSON = new Gson();
+    private static final CustomFormResponse CLOSED =
+            new CustomFormResponse(true, false, null, null);
+    private static final CustomFormResponse INVALID =
+            new CustomFormResponse(false, true, null, null);
+    private final boolean closed;
+    private final boolean invalid;
+
+    private final JsonArray responses;
+    private final List<Component.Type> componentTypes;
+
+    private int index = -1;
+
+    public static CustomFormResponse closed() {
+        return CLOSED;
+    }
+
+    public static CustomFormResponse invalid() {
+        return INVALID;
+    }
+
+    public static CustomFormResponse of(CustomForm form, String responseData) {
+        JsonArray responses = GSON.fromJson(responseData, JsonArray.class);
+        List<Component.Type> types = new ArrayList<>();
+        for (Component component : form.getContent()) {
+            types.add(component.getType());
+        }
+        return of(types, responses);
+    }
+
+    public static CustomFormResponse of(List<Component.Type> componentTypes,
+                                        JsonArray responses) {
+        if (componentTypes.size() != responses.size()) {
+            return invalid();
+        }
+
+        return new CustomFormResponse(false, false, responses,
+                Collections.unmodifiableList(componentTypes));
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T next(boolean includeLabels) {
+        if (!hasNext()) {
+            return null;
+        }
+
+        while (++index < responses.size()) {
+            Component.Type type = componentTypes.get(index);
+            if (type == Component.Type.LABEL && !includeLabels) {
+                continue;
+            }
+            return (T) getDataFromType(type, index);
+        }
+        return null; // we don't have anything to check anymore
+    }
+
+    public <T> T next() {
+        return next(false);
+    }
+
+    public void skip(int amount) {
+        index += amount;
+    }
+
+    public void skip() {
+        skip(1);
+    }
+
+    public void index(int index) {
+        this.index = index;
+    }
+
+    public boolean hasNext() {
+        return responses.size() > index + 1;
+    }
+
+    public JsonPrimitive get(int index) {
+        try {
+            return responses.get(index).getAsJsonPrimitive();
+        } catch (IllegalStateException exception) {
+            wrongType(index, "a primitive");
+            return null;
+        }
+    }
+
+    public int getDropdown(int index) {
+        JsonPrimitive primitive = get(index);
+        if (!primitive.isNumber()) {
+            wrongType(index, "dropdown");
+        }
+        return primitive.getAsInt();
+    }
+
+    public String getInput(int index) {
+        JsonPrimitive primitive = get(index);
+        if (!primitive.isString()) {
+            wrongType(index, "input");
+        }
+        return primitive.getAsString();
+    }
+
+    public float getSlider(int index) {
+        JsonPrimitive primitive = get(index);
+        if (!primitive.isNumber()) {
+            wrongType(index, "slider");
+        }
+        return primitive.getAsFloat();
+    }
+
+    public int getStepSlide(int index) {
+        JsonPrimitive primitive = get(index);
+        if (!primitive.isNumber()) {
+            wrongType(index, "step slider");
+        }
+        return primitive.getAsInt();
+    }
+
+    public boolean getToggle(int index) {
+        JsonPrimitive primitive = get(index);
+        if (!primitive.isBoolean()) {
+            wrongType(index, "toggle");
+        }
+        return primitive.getAsBoolean();
+    }
+
+    private Object getDataFromType(Component.Type type, int index) {
+        switch (type) {
+            case DROPDOWN:
+                return getDropdown(index);
+            case INPUT:
+                return getInput(index);
+            case SLIDER:
+                return getSlider(index);
+            case STEP_SLIDER:
+                return getStepSlide(index);
+            case TOGGLE:
+                return getToggle(index);
+            default:
+                return null; // label e.g. is always null
+        }
+    }
+
+    private void wrongType(int index, String expected) {
+        throw new IllegalStateException(String.format(
+                "Expected %s on %s, got %s",
+                expected, index, responses.get(index).toString()));
+    }
+}

common/src/main/java/org/geysermc/common/form/response/FormResponse.java

@@ -23,7 +23,13 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.response;
+package org.geysermc.common.form.response;
 
 public interface FormResponse {
+    boolean isClosed();
+    boolean isInvalid();
+
+    default boolean isCorrect() {
+        return !isClosed() && !isInvalid();
+    }
 }

common/src/main/java/org/geysermc/common/form/response/ModalFormResponse.java

@@ -23,37 +23,38 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window;
+package org.geysermc.common.form.response;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
+import lombok.AccessLevel;
 import lombok.Getter;
-import lombok.Setter;
-import org.geysermc.common.window.response.FormResponse;
-
-public abstract class FormWindow {
+import lombok.RequiredArgsConstructor;
 
 @Getter
-    private final String type;
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
+public final class ModalFormResponse implements FormResponse {
+    private static final ModalFormResponse CLOSED =
+            new ModalFormResponse(true, false, -1, null);
+    private static final ModalFormResponse INVALID =
+            new ModalFormResponse(false, true, -1, null);
+    private final boolean closed;
+    private final boolean invalid;
 
-    @Getter
-    protected FormResponse response;
+    private final int clickedButtonId;
+    private final String clickedButtonText;
 
-    @Getter
-    @Setter
-    protected boolean closed;
-
-    public FormWindow(String type) {
-        this.type = type;
+    public static ModalFormResponse closed() {
+        return CLOSED;
     }
 
-    // Lombok won't work here, so we need to make our own method
-    public void setResponse(FormResponse response) {
-        this.response = response;
+    public static ModalFormResponse invalid() {
+        return INVALID;
     }
 
-    @JsonIgnore
-    public abstract String getJSONData();
-
-    public abstract void setResponse(String response);
-
+    public static ModalFormResponse of(int clickedButtonId, String clickedButtonText) {
+        return new ModalFormResponse(false, false, clickedButtonId, clickedButtonText);
+    }
+
+    public boolean getResult() {
+        return clickedButtonId == 0;
+    }
 }

common/src/main/java/org/geysermc/common/form/response/SimpleFormResponse.java

@@ -23,47 +23,33 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.component;
+package org.geysermc.common.form.response;
 
+import lombok.AccessLevel;
 import lombok.Getter;
-import lombok.Setter;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class StepSliderComponent extends FormComponent {
+import lombok.RequiredArgsConstructor;
+import org.geysermc.common.form.component.ButtonComponent;
 
 @Getter
-    @Setter
-    private String text;
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
+public final class SimpleFormResponse implements FormResponse {
+    private static final SimpleFormResponse CLOSED = new SimpleFormResponse(true, false, -1, null);
+    private static final SimpleFormResponse INVALID = new SimpleFormResponse(false, true, -1, null);
+    private final boolean closed;
+    private final boolean invalid;
 
-    @Getter
-    private List<String> steps;
+    private final int clickedButtonId;
+    private final ButtonComponent clickedButton;
 
-    @Getter
-    @Setter
-    private int defaultStepIndex;
-
-    public StepSliderComponent(String text) {
-        this(text, new ArrayList<String>());
+    public static SimpleFormResponse closed() {
+        return CLOSED;
     }
 
-    public StepSliderComponent(String text, List<String> steps) {
-        this(text, steps, 0);
+    public static SimpleFormResponse invalid() {
+        return INVALID;
     }
 
-    public StepSliderComponent(String text, List<String> steps, int defaultStepIndex) {
-        super("step_slider");
-
-        this.text = text;
-        this.steps = steps;
-        this.defaultStepIndex = defaultStepIndex;
-    }
-
-    public void addStep(String step, boolean isDefault) {
-        steps.add(step);
-
-        if (isDefault)
-            defaultStepIndex = steps.size() - 1;
+    public static SimpleFormResponse of(int clickedButtonId, ButtonComponent clickedButton) {
+        return new SimpleFormResponse(false, false, clickedButtonId, clickedButton);
     }
 }

common/src/main/java/org/geysermc/common/form/util/FormAdaptor.java

@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.common.form.util;
+
+import com.google.gson.*;
+import com.google.gson.reflect.TypeToken;
+import org.geysermc.common.form.CustomForm;
+import org.geysermc.common.form.Form;
+import org.geysermc.common.form.ModalForm;
+import org.geysermc.common.form.SimpleForm;
+import org.geysermc.common.form.component.ButtonComponent;
+import org.geysermc.common.form.component.Component;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+public class FormAdaptor implements JsonDeserializer<Form>, JsonSerializer<Form> {
+    private static final Type LIST_BUTTON_TYPE =
+            new TypeToken<List<ButtonComponent>>() {}.getType();
+
+    @Override
+    public Form deserialize(JsonElement jsonElement, Type typeOfT,
+                            JsonDeserializationContext context)
+            throws JsonParseException {
+
+        if (!jsonElement.isJsonObject()) {
+            throw new JsonParseException("Form has to be a JsonObject");
+        }
+        JsonObject json = jsonElement.getAsJsonObject();
+
+        if (typeOfT == SimpleForm.class) {
+            String title = json.get("title").getAsString();
+            String content = json.get("content").getAsString();
+            List<ButtonComponent> buttons = context
+                    .deserialize(json.get("buttons"), LIST_BUTTON_TYPE);
+            return SimpleForm.of(title, content, buttons);
+        }
+
+        if (typeOfT == ModalForm.class) {
+            String title = json.get("title").getAsString();
+            String content = json.get("content").getAsString();
+            String button1 = json.get("button1").getAsString();
+            String button2 = json.get("button2").getAsString();
+            return ModalForm.of(title, content, button1, button2);
+        }
+
+        if (typeOfT == CustomForm.class) {
+            String title = json.get("title").getAsString();
+            FormImage icon = context.deserialize(json.get("icon"), FormImage.class);
+            List<Component> content = new ArrayList<>();
+
+            JsonArray contentArray = json.getAsJsonArray("content");
+            for (JsonElement contentElement : contentArray) {
+                String typeName = contentElement.getAsJsonObject().get("type").getAsString();
+
+                Component.Type type = Component.Type.getByName(typeName);
+                if (type == null) {
+                    throw new JsonParseException("Failed to find Component type " + typeName);
+                }
+
+                content.add(context.deserialize(contentElement, type.getComponentClass()));
+            }
+            return CustomForm.of(title, icon, content);
+        }
+        return null;
+    }
+
+    @Override
+    public JsonElement serialize(Form src, Type typeOfSrc, JsonSerializationContext context) {
+        JsonObject result = new JsonObject();
+        result.add("type", context.serialize(src.getType()));
+
+        if (typeOfSrc == SimpleForm.class) {
+            SimpleForm form = (SimpleForm) src;
+
+            result.addProperty("title", form.getTitle());
+            result.addProperty("content", form.getContent());
+            result.add("buttons", context.serialize(form.getButtons(), LIST_BUTTON_TYPE));
+            return result;
+        }
+
+        if (typeOfSrc == ModalForm.class) {
+            ModalForm form = (ModalForm) src;
+
+            result.addProperty("title", form.getTitle());
+            result.addProperty("content", form.getContent());
+            result.addProperty("button1", form.getButton1());
+            result.addProperty("button2", form.getButton2());
+            return result;
+        }
+
+        if (typeOfSrc == CustomForm.class) {
+            CustomForm form = (CustomForm) src;
+
+            result.addProperty("title", form.getTitle());
+            result.add("icon", context.serialize(form.getIcon()));
+            result.add("content", context.serialize(form.getContent()));
+            return result;
+        }
+        return null;
+    }
+}

common/src/main/java/org/geysermc/common/form/util/FormImage.java

@@ -23,36 +23,32 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.common.window.button;
+package org.geysermc.common.form.util;
 
+import lombok.AccessLevel;
 import lombok.Getter;
-import lombok.Setter;
+import lombok.RequiredArgsConstructor;
 
+@Getter
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
 public class FormImage {
+    private final String type;
+    private final String data;
 
-    @Getter
-    @Setter
-    private String type;
-
-    @Getter
-    @Setter
-    private String data;
-
-    public FormImage(FormImageType type, String data) {
-        this.type = type.getName();
-        this.data = data;
+    public static FormImage of(String type, String data) {
+        return new FormImage(type, data);
     }
 
-    public enum FormImageType {
+    public static FormImage of(Type type, String data) {
+        return of(type.getName(), data);
+    }
+
+    @RequiredArgsConstructor
+    public enum Type {
         PATH("path"),
         URL("url");
 
-        @Getter
-        private String name;
-
-        FormImageType(String name) {
-            this.name = name;
-        }
+        @Getter private final String name;
 
         @Override
         public String toString() {

common/src/main/java/org/geysermc/common/window/CustomFormBuilder.java

@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window;
-
-import lombok.Getter;
-import org.geysermc.common.window.CustomFormWindow;
-import org.geysermc.common.window.button.FormImage;
-import org.geysermc.common.window.component.FormComponent;
-import org.geysermc.common.window.response.CustomFormResponse;
-
-public class CustomFormBuilder {
-
-    @Getter
-    private CustomFormWindow form;
-
-    public CustomFormBuilder(String title) {
-        form = new CustomFormWindow(title);
-    }
-
-    public CustomFormBuilder setTitle(String title) {
-        form.setTitle(title);
-        return this;
-    }
-
-    public CustomFormBuilder setIcon(FormImage icon) {
-        form.setIcon(icon);
-        return this;
-    }
-
-    public CustomFormBuilder setResponse(String data) {
-        form.setResponse(data);
-        return this;
-    }
-
-    public CustomFormBuilder setResponse(CustomFormResponse response) {
-        form.setResponse(response);
-        return this;
-    }
-
-    public CustomFormBuilder addComponent(FormComponent component) {
-        form.addComponent(component);
-        return this;
-    }
-
-    public CustomFormWindow build() {
-        return form;
-    }
-}

common/src/main/java/org/geysermc/common/window/CustomFormWindow.java

@@ -1,165 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window;
-
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import lombok.Getter;
-import lombok.Setter;
-import org.geysermc.common.window.button.FormImage;
-import org.geysermc.common.window.component.*;
-import org.geysermc.common.window.response.CustomFormResponse;
-import org.geysermc.common.window.response.FormResponseData;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-public class CustomFormWindow extends FormWindow {
-
-    @Getter
-    @Setter
-    private String title;
-
-    @Getter
-    @Setter
-    private FormImage icon;
-
-    @Getter
-    private List<FormComponent> content;
-
-    public CustomFormWindow(String title) {
-        this(title, new ArrayList<>());
-    }
-
-    public CustomFormWindow(String title, List<FormComponent> content) {
-        this(title, content, (FormImage) null);
-    }
-
-    public CustomFormWindow(String title, List<FormComponent> content, String icon) {
-        this(title, content, new FormImage(FormImage.FormImageType.URL, icon));
-    }
-
-    public CustomFormWindow(String title, List<FormComponent> content, FormImage icon) {
-        super("custom_form");
-
-        this.title = title;
-        this.content = content;
-        this.icon = icon;
-    }
-
-    public void addComponent(FormComponent component) {
-        content.add(component);
-    }
-
-    public String getJSONData() {
-        String toModify = "";
-        try {
-            toModify = new ObjectMapper().writeValueAsString(this);
-        } catch (JsonProcessingException e) { }
-
-        //We need to replace this due to Java not supporting declaring class field 'default'
-        return toModify.replace("defaultOptionIndex", "default")
-                .replace("defaultText", "default")
-                .replace("defaultValue", "default")
-                .replace("defaultStepIndex", "default");
-    }
-
-    public void setResponse(String data) {
-        if (data == null || data.equalsIgnoreCase("null") || data.isEmpty()) {
-            closed = true;
-            return;
-        }
-
-        int i = 0;
-        Map<Integer, FormResponseData> dropdownResponses = new HashMap<Integer, FormResponseData>();
-        Map<Integer, String> inputResponses = new HashMap<Integer, String>();
-        Map<Integer, Float> sliderResponses = new HashMap<Integer, Float>();
-        Map<Integer, FormResponseData> stepSliderResponses = new HashMap<Integer, FormResponseData>();
-        Map<Integer, Boolean> toggleResponses = new HashMap<Integer, Boolean>();
-        Map<Integer, Object> responses = new HashMap<Integer, Object>();
-        Map<Integer, String> labelResponses = new HashMap<Integer, String>();
-
-        List<String> componentResponses = new ArrayList<>();
-        try {
-            componentResponses = new ObjectMapper().readValue(data, new TypeReference<List<String>>(){});
-        } catch (IOException e) { }
-
-        for (String response : componentResponses) {
-            if (i >= content.size()) {
-                break;
-            }
-
-            FormComponent component = content.get(i);
-            if (component == null)
-                return;
-
-            if (component instanceof LabelComponent) {
-                LabelComponent labelComponent = (LabelComponent) component;
-                labelResponses.put(i, labelComponent.getText());
-            }
-
-            if (component instanceof DropdownComponent) {
-                DropdownComponent dropdownComponent = (DropdownComponent) component;
-                String option = dropdownComponent.getOptions().get(Integer.parseInt(response));
-
-                dropdownResponses.put(i, new FormResponseData(Integer.parseInt(response), option));
-                responses.put(i, option);
-            }
-
-            if (component instanceof InputComponent) {
-                inputResponses.put(i, response);
-                responses.put(i, response);
-            }
-
-            if (component instanceof SliderComponent) {
-                float value = Float.parseFloat(response);
-                sliderResponses.put(i, value);
-                responses.put(i, value);
-            }
-
-            if (component instanceof StepSliderComponent) {
-                StepSliderComponent stepSliderComponent = (StepSliderComponent) component;
-                String step = stepSliderComponent.getSteps().get(Integer.parseInt(response));
-                stepSliderResponses.put(i, new FormResponseData(Integer.parseInt(response), step));
-                responses.put(i, step);
-            }
-
-            if (component instanceof ToggleComponent) {
-                boolean answer = Boolean.parseBoolean(response);
-                toggleResponses.put(i, answer);
-                responses.put(i, answer);
-            }
-            i++;
-        }
-
-        this.response = new CustomFormResponse(responses, dropdownResponses, inputResponses,
-                sliderResponses, stepSliderResponses, toggleResponses, labelResponses);
-    }
-}

common/src/main/java/org/geysermc/common/window/ModalFormWindow.java

@@ -1,82 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window;
-
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import lombok.Getter;
-import lombok.Setter;
-import org.geysermc.common.window.response.ModalFormResponse;
-
-public class ModalFormWindow extends FormWindow {
-
-    @Getter
-    @Setter
-    private String title;
-
-    @Getter
-    @Setter
-    private String content;
-
-    @Getter
-    @Setter
-    private String button1;
-
-    @Getter
-    @Setter
-    private String button2;
-
-    public ModalFormWindow(String title, String content, String button1, String button2) {
-        super("modal");
-
-        this.title = title;
-        this.content = content;
-        this.button1 = button1;
-        this.button2 = button2;
-    }
-
-    @Override
-    public String getJSONData() {
-        try {
-            return new ObjectMapper().writeValueAsString(this);
-        } catch (JsonProcessingException e) {
-            return "";
-        }
-    }
-
-    public void setResponse(String data) {
-        if (data == null || data.equalsIgnoreCase("null")) {
-            closed = true;
-            return;
-        }
-
-        if (Boolean.parseBoolean(data)) {
-            response = new ModalFormResponse(0, button1);
-        } else {
-            response = new ModalFormResponse(1, button2);
-        }
-    }
-}

common/src/main/java/org/geysermc/common/window/SimpleFormWindow.java

@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window;
-
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import lombok.Getter;
-import lombok.Setter;
-import org.geysermc.common.window.button.FormButton;
-import org.geysermc.common.window.response.SimpleFormResponse;
-
-import java.util.ArrayList;
-import java.util.List;
-
-
-public class SimpleFormWindow extends FormWindow {
-
-    @Getter
-    @Setter
-    private String title;
-
-    @Getter
-    @Setter
-    private String content;
-
-    @Getter
-    @Setter
-    private List<FormButton> buttons;
-
-    public SimpleFormWindow(String title, String content) {
-        this(title, content, new ArrayList<FormButton>());
-    }
-
-    public SimpleFormWindow(String title, String content, List<FormButton> buttons) {
-        super("form");
-
-        this.title = title;
-        this.content = content;
-        this.buttons = buttons;
-    }
-
-    @Override
-    public String getJSONData() {
-        try {
-            return new ObjectMapper().writeValueAsString(this);
-        } catch (JsonProcessingException e) {
-            return "";
-        }
-    }
-
-    public void setResponse(String data) {
-        if (data == null || data.equalsIgnoreCase("null")) {
-            closed = true;
-            return;
-        }
-
-        int buttonID;
-        try {
-            buttonID = Integer.parseInt(data);
-        } catch (Exception ex) {
-            return;
-        }
-
-        if (buttonID >= buttons.size()) {
-            response = new SimpleFormResponse(buttonID, null);
-            return;
-        }
-
-        response = new SimpleFormResponse(buttonID, buttons.get(buttonID));
-    }
-}

common/src/main/java/org/geysermc/common/window/component/DropdownComponent.java

@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.component;
-
-import lombok.Getter;
-import lombok.Setter;
-
-import java.util.List;
-
-public class DropdownComponent extends FormComponent {
-
-    @Getter
-    @Setter
-    private String text;
-
-    @Getter
-    @Setter
-    private List<String> options;
-
-    @Getter
-    @Setter
-    private int defaultOptionIndex;
-
-    public DropdownComponent() {
-        super("dropdown");
-    }
-
-    public void addOption(String option, boolean isDefault) {
-        options.add(option);
-        if (isDefault)
-            defaultOptionIndex = options.size() - 1;
-    }
-}

common/src/main/java/org/geysermc/common/window/component/FormComponent.java

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.component;
-
-import lombok.Getter;
-
-public abstract class FormComponent {
-
-    @Getter
-    private final String type;
-
-    public FormComponent(String type) {
-        this.type = type;
-    }
-}

common/src/main/java/org/geysermc/common/window/component/SliderComponent.java

@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.component;
-
-import lombok.Getter;
-import lombok.Setter;
-
-public class SliderComponent extends FormComponent {
-
-    @Getter
-    @Setter
-    private String text;
-
-    @Getter
-    @Setter
-    private float min;
-
-    @Getter
-    @Setter
-    private float max;
-
-    @Getter
-    @Setter
-    private int step;
-
-    @Getter
-    @Setter
-    private float defaultValue;
-
-    public SliderComponent(String text, float min, float max, int step, float defaultValue) {
-        super("slider");
-
-        this.text = text;
-        this.min = Math.max(min, 0f);
-        this.max = max > this.min ? max : this.min;
-        if (step != -1f && step > 0)
-            this.step = step;
-
-        if (defaultValue != -1f)
-            this.defaultValue = defaultValue;
-    }
-}

common/src/main/java/org/geysermc/common/window/response/CustomFormResponse.java

@@ -1,46 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import org.geysermc.common.window.response.FormResponse;
-import org.geysermc.common.window.response.FormResponseData;
-
-import java.util.Map;
-
-@Getter
-@AllArgsConstructor
-public class CustomFormResponse implements FormResponse {
-
-    private Map<Integer, Object> responses;
-    private Map<Integer, FormResponseData> dropdownResponses;
-    private Map<Integer, String> inputResponses;
-    private Map<Integer, Float> sliderResponses;
-    private Map<Integer, FormResponseData> stepSliderResponses;
-    private Map<Integer, Boolean> toggleResponses;
-    private Map<Integer, String> labelResponses;
-}

common/src/main/java/org/geysermc/common/window/response/FormResponseData.java

@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@AllArgsConstructor
-@Getter
-public class FormResponseData {
-
-    private int elementID;
-    private String elementContent;
-}

common/src/main/java/org/geysermc/common/window/response/ModalFormResponse.java

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import org.geysermc.common.window.response.FormResponse;
-
-@Getter
-@AllArgsConstructor
-public class ModalFormResponse implements FormResponse {
-
-    private int clickedButtonId;
-    private String clickedButtonText;
-}

common/src/main/java/org/geysermc/common/window/response/SimpleFormResponse.java

@@ -1,39 +0,0 @@
-/*
- * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @author GeyserMC
- * @link https://github.com/GeyserMC/Geyser
- */
-
-package org.geysermc.common.window.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import org.geysermc.common.window.button.FormButton;
-import org.geysermc.common.window.response.FormResponse;
-
-@Getter
-@AllArgsConstructor
-public class SimpleFormResponse implements FormResponse {
-
-    private int clickedButtonId;
-    private FormButton clickedButton;
-}

connector/src/main/java/org/geysermc/connector/network/UpstreamPacketHandler.java

@@ -39,7 +39,6 @@ import org.geysermc.connector.utils.LoginEncryptionUtils;
 import org.geysermc.connector.utils.MathUtils;
 import org.geysermc.connector.utils.ResourcePack;
 import org.geysermc.connector.utils.ResourcePackManifest;
-import org.geysermc.connector.utils.SettingsUtils;
 
 import java.io.FileInputStream;
 import java.io.InputStream;
@@ -139,11 +138,8 @@ public class UpstreamPacketHandler extends LoggingPacketHandler {
 
     @Override
     public boolean handle(ModalFormResponsePacket packet) {
-        if (packet.getFormId() == SettingsUtils.SETTINGS_FORM_ID) {
-            return SettingsUtils.handleSettingsForm(session, packet.getFormData());
-        }
-
-        return LoginEncryptionUtils.authenticateFromForm(session, connector, packet.getFormId(), packet.getFormData());
+        session.getFormCache().handleResponse(packet);
+        return true;
     }
 
     private boolean couldLoginUserByName(String bedrockUsername) {
@@ -170,7 +166,7 @@ public class UpstreamPacketHandler extends LoggingPacketHandler {
         if (!session.isLoggedIn() && !session.isLoggingIn() && session.getConnector().getAuthType() == AuthType.ONLINE) {
             // TODO it is safer to key authentication on something that won't change (UUID, not username)
             if (!couldLoginUserByName(session.getAuthData().getName())) {
-                LoginEncryptionUtils.showLoginWindow(session);
+                LoginEncryptionUtils.buildAndShowLoginWindow(session);
             }
             // else we were able to log the user in
         }

connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java

@@ -55,8 +55,7 @@ import it.unimi.dsi.fastutil.objects.Object2LongMap;
 import it.unimi.dsi.fastutil.objects.Object2LongOpenHashMap;
 import lombok.Getter;
 import lombok.Setter;
-import org.geysermc.common.window.CustomFormWindow;
-import org.geysermc.common.window.FormWindow;
+import org.geysermc.common.form.Form;
 import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.command.CommandSender;
 import org.geysermc.connector.common.AuthType;
@@ -101,7 +100,7 @@ public class GeyserSession implements CommandSender {
     private EntityCache entityCache;
     private InventoryCache inventoryCache;
     private WorldCache worldCache;
-    private WindowCache windowCache;
+    private FormCache formCache;
     @Setter
     private TeleportCache teleportCache;
 
@@ -192,9 +191,6 @@ public class GeyserSession implements CommandSender {
 
     private boolean reducedDebugInfo = false;
 
-    @Setter
-    private CustomFormWindow settingsForm;
-
     /**
      * The op permission level set by the server
      */
@@ -239,7 +235,7 @@ public class GeyserSession implements CommandSender {
 
     /**
      * Stores the last text inputted into a sign.
-     *
+     * <p>
      * Bedrock sends packets every time you update the sign, Java only wants the final packet.
      * Until we determine that the user has finished editing, we save the sign's current status.
      */
@@ -256,7 +252,7 @@ public class GeyserSession implements CommandSender {
         this.entityCache = new EntityCache(this);
         this.inventoryCache = new InventoryCache(this);
         this.worldCache = new WorldCache(this);
-        this.windowCache = new WindowCache(this);
+        this.formCache = new FormCache(this);
 
         this.playerEntity = new PlayerEntity(new GameProfile(UUID.randomUUID(), "unknown"), 1, 1, Vector3f.ZERO, Vector3f.ZERO, Vector3f.ZERO);
         this.inventory = new PlayerInventory();
@@ -497,7 +493,7 @@ public class GeyserSession implements CommandSender {
         this.entityCache = null;
         this.worldCache = null;
         this.inventoryCache = null;
-        this.windowCache = null;
+        this.formCache = null;
 
         closed = true;
     }
@@ -533,10 +529,6 @@ public class GeyserSession implements CommandSender {
         return false;
     }
 
-    public void sendForm(FormWindow window, int id) {
-        windowCache.showWindow(window, id);
-    }
-
     public void setRenderDistance(int renderDistance) {
         renderDistance = GenericMath.ceil(++renderDistance * MathUtils.SQRT_OF_TWO); //square to circle
         if (renderDistance > 32) renderDistance = 32; // <3 u ViaVersion but I don't like crashing clients x)
@@ -551,8 +543,12 @@ public class GeyserSession implements CommandSender {
         return this.upstream.getAddress();
     }
 
-    public void sendForm(FormWindow window) {
-        windowCache.showWindow(window);
+    public void sendForm(Form form) {
+        formCache.showForm(form);
+    }
+
+    public void sendForm(Form.Builder<?, ?> formBuilder) {
+        formCache.showForm(formBuilder.build());
     }
 
     private void startGame() {

connector/src/main/java/org/geysermc/connector/network/session/cache/FormCache.java

@@ -26,56 +26,54 @@
 package org.geysermc.connector.network.session.cache;
 
 import com.nukkitx.protocol.bedrock.packet.ModalFormRequestPacket;
-
+import com.nukkitx.protocol.bedrock.packet.ModalFormResponsePacket;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
-
-import lombok.Getter;
-
-import org.geysermc.common.window.FormWindow;
+import lombok.RequiredArgsConstructor;
+import org.geysermc.common.form.Form;
 import org.geysermc.connector.network.session.GeyserSession;
 
-public class WindowCache {
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
 
-    private GeyserSession session;
+@RequiredArgsConstructor
+public class FormCache {
+    private final AtomicInteger formId = new AtomicInteger(0);
+    private final Int2ObjectMap<Form> forms = new Int2ObjectOpenHashMap<>();
+    private final GeyserSession session;
 
-    @Getter
-    private Int2ObjectMap<FormWindow> windows = new Int2ObjectOpenHashMap<>();
-
-    public WindowCache(GeyserSession session) {
-        this.session = session;
+    public int addForm(Form form) {
+        int windowId = formId.getAndIncrement();
+        forms.put(windowId, form);
+        return windowId;
     }
 
-    public void addWindow(FormWindow window) {
-        windows.put(windows.size() + 1, window);
+    public int showForm(Form form) {
+        int windowId = addForm(form);
+
+        ModalFormRequestPacket formRequestPacket = new ModalFormRequestPacket();
+        formRequestPacket.setFormId(windowId);
+        formRequestPacket.setFormData(form.getJsonData());
+
+        session.sendUpstreamPacket(formRequestPacket);
+        return windowId;
     }
 
-    public void addWindow(FormWindow window, int id) {
-        windows.put(id, window);
-    }
-
-    public void showWindow(FormWindow window) {
-        showWindow(window, windows.size() + 1);
-    }
-
-    public void showWindow(int id) {
-        if (!windows.containsKey(id))
+    public void handleResponse(ModalFormResponsePacket response) {
+        Form form = forms.get(response.getFormId());
+        if (form == null) {
             return;
-
-        ModalFormRequestPacket formRequestPacket = new ModalFormRequestPacket();
-        formRequestPacket.setFormId(id);
-        formRequestPacket.setFormData(windows.get(id).getJSONData());
-
-        session.sendUpstreamPacket(formRequestPacket);
         }
 
-    public void showWindow(FormWindow window, int id) {
-        ModalFormRequestPacket formRequestPacket = new ModalFormRequestPacket();
-        formRequestPacket.setFormId(id);
-        formRequestPacket.setFormData(window.getJSONData());
+        Consumer<String> responseConsumer = form.getResponseHandler();
+        if (responseConsumer != null) {
+            responseConsumer.accept(response.getFormData().trim());
+        }
 
-        session.sendUpstreamPacket(formRequestPacket);
+        removeWindow(response.getFormId());
+    }
 
-        addWindow(window, id);
+    public boolean removeWindow(int id) {
+        return forms.remove(id) != null;
     }
 }

connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockServerSettingsRequestTranslator.java

@@ -27,6 +27,7 @@ package org.geysermc.connector.network.translators.bedrock;
 
 import com.nukkitx.protocol.bedrock.packet.ServerSettingsRequestPacket;
 import com.nukkitx.protocol.bedrock.packet.ServerSettingsResponsePacket;
+import org.geysermc.common.form.CustomForm;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
 import org.geysermc.connector.network.translators.Translator;
@@ -37,11 +38,12 @@ public class BedrockServerSettingsRequestTranslator extends PacketTranslator<Ser
 
     @Override
     public void translate(ServerSettingsRequestPacket packet, GeyserSession session) {
-        SettingsUtils.buildForm(session);
+        CustomForm window = SettingsUtils.buildForm(session);
+        int windowId = session.getFormCache().addForm(window);
 
         ServerSettingsResponsePacket serverSettingsResponsePacket = new ServerSettingsResponsePacket();
-        serverSettingsResponsePacket.setFormData(session.getSettingsForm().getJSONData());
-        serverSettingsResponsePacket.setFormId(SettingsUtils.SETTINGS_FORM_ID);
+        serverSettingsResponsePacket.setFormData(window.getJsonData());
+        serverSettingsResponsePacket.setFormId(windowId);
         session.sendUpstreamPacket(serverSettingsResponsePacket);
     }
 }

connector/src/main/java/org/geysermc/connector/network/translators/java/JavaPluginMessageTranslator.java

@@ -25,20 +25,26 @@
 
 package org.geysermc.connector.network.translators.java;
 
+import com.github.steveice10.mc.protocol.packet.ingame.client.ClientPluginMessagePacket;
+import com.github.steveice10.mc.protocol.packet.ingame.server.ServerPluginMessagePacket;
+import com.google.common.base.Charsets;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.geysermc.common.form.Form;
+import org.geysermc.common.form.ModalForm;
+import org.geysermc.common.form.util.FormAdaptor;
 import org.geysermc.connector.GeyserConnector;
+import org.geysermc.connector.common.AuthType;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
 import org.geysermc.connector.network.translators.Translator;
 
-import com.github.steveice10.mc.protocol.packet.ingame.client.ClientPluginMessagePacket;
-import com.github.steveice10.mc.protocol.packet.ingame.server.ServerPluginMessagePacket;
-
 import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
 
 @Translator(packet = ServerPluginMessagePacket.class)
 public class JavaPluginMessageTranslator extends PacketTranslator<ServerPluginMessagePacket> {
-
-    private static byte[] brandData;
+    private static final byte[] brandData;
 
     static {
         byte[] data = GeyserConnector.NAME.getBytes(StandardCharsets.UTF_8);
@@ -48,16 +54,6 @@ public class JavaPluginMessageTranslator extends PacketTranslator<ServerPluginMe
         System.arraycopy(data, 0, brandData, varInt.length, data.length);
     }
 
-
-    @Override
-    public void translate(ServerPluginMessagePacket packet, GeyserSession session) {
-        if (packet.getChannel().equals("minecraft:brand")) {
-            session.sendDownstreamPacket(
-                    new ClientPluginMessagePacket(packet.getChannel(), brandData)
-            );
-        }
-    }
-
     private static byte[] writeVarInt(int value) {
         byte[] data = new byte[getVarIntLength(value)];
         int index = 0;
@@ -85,4 +81,48 @@ public class JavaPluginMessageTranslator extends PacketTranslator<ServerPluginMe
         }
         return 5;
     }
+
+    @Override
+    public void translate(ServerPluginMessagePacket packet, GeyserSession session) {
+        String channel = packet.getChannel();
+
+        if (channel.equals("minecraft:brand")) {
+            session.sendDownstreamPacket(
+                    new ClientPluginMessagePacket(channel, brandData)
+            );
+        }
+
+        // Floodgate plugin messages
+        if (session.getConnector().getAuthType() != AuthType.FLOODGATE) {
+            return;
+        }
+
+        if (channel.equals("floodgate:form")) {
+            byte[] data = packet.getData();
+
+            // receive: first byte is form type, second and third are the id, remaining is the form data
+            // respond: first and second byte id, remaining is form response data
+
+            Form.Type type = Form.Type.getByOrdinal(data[0]);
+            if (type == null) {
+                throw new NullPointerException(
+                        "Got type " + data[0] + " which isn't a valid form type!");
+            }
+
+            String dataString = new String(data, 3, data.length - 3, Charsets.UTF_8);
+
+            Form form = new GsonBuilder().registerTypeAdapter(ModalForm.class, new FormAdaptor()).create().fromJson(dataString, type.getTypeClass());
+            form.setResponseHandler(response -> {
+                byte[] raw = response.getBytes(StandardCharsets.UTF_8);
+                byte[] finalData = new byte[raw.length + 2];
+
+                finalData[0] = data[1];
+                finalData[1] = data[2];
+                System.arraycopy(raw, 0, finalData, 2, raw.length);
+
+                session.sendDownstreamPacket(new ClientPluginMessagePacket(channel, finalData));
+            });
+            session.sendForm(form);
+        }
+    }
 }

connector/src/main/java/org/geysermc/connector/utils/LoginEncryptionUtils.java

@@ -34,20 +34,16 @@ import com.nukkitx.network.util.Preconditions;
 import com.nukkitx.protocol.bedrock.packet.LoginPacket;
 import com.nukkitx.protocol.bedrock.packet.ServerToClientHandshakePacket;
 import com.nukkitx.protocol.bedrock.util.EncryptionUtils;
-import org.geysermc.common.window.CustomFormBuilder;
-import org.geysermc.common.window.CustomFormWindow;
-import org.geysermc.common.window.FormWindow;
-import org.geysermc.common.window.SimpleFormWindow;
-import org.geysermc.common.window.button.FormButton;
-import org.geysermc.common.window.component.InputComponent;
-import org.geysermc.common.window.component.LabelComponent;
-import org.geysermc.common.window.response.CustomFormResponse;
-import org.geysermc.common.window.response.SimpleFormResponse;
+import org.geysermc.common.form.CustomForm;
+import org.geysermc.common.form.ModalForm;
+import org.geysermc.common.form.SimpleForm;
+import org.geysermc.common.form.response.CustomFormResponse;
+import org.geysermc.common.form.response.ModalFormResponse;
+import org.geysermc.common.form.response.SimpleFormResponse;
 import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.session.auth.AuthData;
 import org.geysermc.connector.network.session.auth.BedrockClientData;
-import org.geysermc.connector.network.session.cache.WindowCache;
 
 import javax.crypto.SecretKey;
 import java.io.IOException;
@@ -159,69 +155,49 @@ public class LoginEncryptionUtils {
         session.sendUpstreamPacketImmediately(packet);
     }
 
-    private static int AUTH_FORM_ID = 1336;
-    private static int AUTH_DETAILS_FORM_ID = 1337;
-
-    public static void showLoginWindow(GeyserSession session) {
+    public static void buildAndShowLoginWindow(GeyserSession session) {
         String userLanguage = session.getClientData().getLanguageCode();
-        SimpleFormWindow window = new SimpleFormWindow(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.notice.title", userLanguage), LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.notice.desc", userLanguage));
-        window.getButtons().add(new FormButton(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.notice.btn_login", userLanguage)));
-        window.getButtons().add(new FormButton(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.notice.btn_disconnect", userLanguage)));
 
-        session.sendForm(window, AUTH_FORM_ID);
+        session.sendForm(
+                SimpleForm.builder()
+                        .translator(LanguageUtils::getPlayerLocaleString, userLanguage)
+                        .title("geyser.auth.login.form.notice.title")
+                        .content("geyser.auth.login.form.notice.desc")
+                        .button("geyser.auth.login.form.notice.btn_login") // id = 0
+                        .button("geyser.auth.login.form.notice.btn_disconnect")
+                        .responseHandler((form, responseData) -> {
+                            SimpleFormResponse response = form.parseResponse(responseData.trim());
+                            if (!response.isCorrect()) {
+                                buildAndShowLoginWindow(session);
+                                return;
                             }
 
-    public static void showLoginDetailsWindow(GeyserSession session) {
-        String userLanguage = session.getClientData().getLanguageCode();
-        CustomFormWindow window = new CustomFormBuilder(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.details.title", userLanguage))
-                .addComponent(new LabelComponent(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.details.desc", userLanguage)))
-                .addComponent(new InputComponent(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.details.email", userLanguage), "account@geysermc.org", ""))
-                .addComponent(new InputComponent(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.details.pass", userLanguage), "123456", ""))
-                .build();
-
-        session.sendForm(window, AUTH_DETAILS_FORM_ID);
-    }
-
-    public static boolean authenticateFromForm(GeyserSession session, GeyserConnector connector, int formId, String formData) {
-        WindowCache windowCache = session.getWindowCache();
-        if (!windowCache.getWindows().containsKey(formId))
-            return false;
-
-        if(formId == AUTH_FORM_ID || formId == AUTH_DETAILS_FORM_ID) {
-            FormWindow window = windowCache.getWindows().remove(formId);
-            window.setResponse(formData.trim());
-
-            if (!session.isLoggedIn()) {
-                if (formId == AUTH_DETAILS_FORM_ID && window instanceof CustomFormWindow) {
-                    CustomFormWindow customFormWindow = (CustomFormWindow) window;
-
-                    CustomFormResponse response = (CustomFormResponse) customFormWindow.getResponse();
-                    if (response != null) {
-                        String email = response.getInputResponses().get(1);
-                        String password = response.getInputResponses().get(2);
-
-                        session.authenticate(email, password);
-                    } else {
-                        showLoginDetailsWindow(session);
-                    }
-
-                    // Clear windows so authentication data isn't accidentally cached
-                    windowCache.getWindows().clear();
-                } else if (formId == AUTH_FORM_ID && window instanceof SimpleFormWindow) {
-                    SimpleFormResponse response = (SimpleFormResponse) window.getResponse();
-                    if (response != null) {
                             if (response.getClickedButtonId() == 0) {
-                            showLoginDetailsWindow(session);
-                        } else if(response.getClickedButtonId() == 1) {
-                            session.disconnect(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.disconnect", session.getClientData().getLanguageCode()));
-                        }
-                    } else {
-                        showLoginWindow(session);
-                    }
-                }
-            }
-        }
-        return true;
+                                buildAndShowLoginDetailsWindow(session);
+                                return;
                             }
 
+                            session.disconnect(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.disconnect", session.getClientData().getLanguageCode()));
+                }));
+    }
+
+    public static void buildAndShowLoginDetailsWindow(GeyserSession session) {
+        String userLanguage = session.getClientData().getLanguageCode();
+        session.sendForm(
+                CustomForm.builder()
+                        .translator(LanguageUtils::getPlayerLocaleString, userLanguage)
+                        .title("geyser.auth.login.form.details.title")
+                        .label("geyser.auth.login.form.details.desc")
+                        .input("geyser.auth.login.form.details.email", "account@geysermc.org", "")
+                        .input("geyser.auth.login.form.details.pass", "123456", "")
+                        .responseHandler((form, responseData) -> {
+                            CustomFormResponse response = form.parseResponse(responseData.trim());
+                            if (!response.isCorrect()) {
+                                buildAndShowLoginDetailsWindow(session);
+                                return;
+                            }
+
+                            session.authenticate(response.next(), response.next());
+                        }));
+    }
 }

connector/src/main/java/org/geysermc/connector/utils/SettingsUtils.java

@@ -27,62 +27,53 @@ package org.geysermc.connector.utils;
 
 import com.github.steveice10.mc.protocol.data.game.entity.player.GameMode;
 import com.github.steveice10.mc.protocol.data.game.setting.Difficulty;
-import org.geysermc.common.window.CustomFormBuilder;
-import org.geysermc.common.window.CustomFormWindow;
-import org.geysermc.common.window.button.FormImage;
-import org.geysermc.common.window.component.DropdownComponent;
-import org.geysermc.common.window.component.InputComponent;
-import org.geysermc.common.window.component.LabelComponent;
-import org.geysermc.common.window.component.ToggleComponent;
-import org.geysermc.common.window.response.CustomFormResponse;
+import org.geysermc.common.form.CustomForm;
+import org.geysermc.common.form.component.DropdownComponent;
+import org.geysermc.common.form.response.CustomFormResponse;
 import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.network.session.GeyserSession;
-
-import java.util.ArrayList;
+import org.geysermc.connector.network.translators.world.WorldManager;
 
 public class SettingsUtils {
 
-    // Used in UpstreamPacketHandler.java
-    public static final int SETTINGS_FORM_ID = 1338;
-
     /**
      * Build a settings form for the given session and store it for later
      *
      * @param session The session to build the form for
      */
-    public static void buildForm(GeyserSession session) {
+    public static CustomForm buildForm(GeyserSession session) {
         // Cache the language for cleaner access
         String language = session.getClientData().getLanguageCode();
 
-        CustomFormBuilder builder = new CustomFormBuilder(LanguageUtils.getPlayerLocaleString("geyser.settings.title.main", language));
-        builder.setIcon(new FormImage(FormImage.FormImageType.PATH, "textures/ui/settings_glyph_color_2x.png"));
-
-        builder.addComponent(new LabelComponent(LanguageUtils.getPlayerLocaleString("geyser.settings.title.client", language)));
-        builder.addComponent(new ToggleComponent(LanguageUtils.getPlayerLocaleString("geyser.settings.option.coordinates", language, session.getWorldCache().isShowCoordinates())));
+        CustomForm.Builder builder = CustomForm.builder()
+                .translator(LanguageUtils::getPlayerLocaleString, language)
+                .title("geyser.settings.title.main")
+                .iconPath("textures/ui/settings_glyph_color_2x.png")
+                .label("geyser.settings.title.client")
+                .toggle("geyser.settings.option.coordinates");
 
 
         if (session.getOpPermissionLevel() >= 2 || session.hasPermission("geyser.settings.server")) {
-            builder.addComponent(new LabelComponent(LanguageUtils.getPlayerLocaleString("geyser.settings.title.server", language)));
+            builder.label("geyser.settings.title.server");
 
-            DropdownComponent gamemodeDropdown = new DropdownComponent();
-            gamemodeDropdown.setText("%createWorldScreen.gameMode.personal");
-            gamemodeDropdown.setOptions(new ArrayList<>());
+            DropdownComponent.Builder gamemodeDropdown = DropdownComponent.builder("%createWorldScreen.gameMode.personal");
             for (GameMode gamemode : GameMode.values()) {
-                gamemodeDropdown.addOption(LocaleUtils.getLocaleString("selectWorld.gameMode." + gamemode.name().toLowerCase(), language), session.getGameMode() == gamemode);
+                gamemodeDropdown.option("selectWorld.gameMode." + gamemode.name().toLowerCase(), session.getGameMode() == gamemode);
             }
-            builder.addComponent(gamemodeDropdown);
+            builder.dropdown(gamemodeDropdown);
 
-            DropdownComponent difficultyDropdown = new DropdownComponent();
-            difficultyDropdown.setText("%options.difficulty");
-            difficultyDropdown.setOptions(new ArrayList<>());
+            DropdownComponent.Builder difficultyDropdown = DropdownComponent.builder("%options.difficulty");
             for (Difficulty difficulty : Difficulty.values()) {
-                difficultyDropdown.addOption("%options.difficulty." + difficulty.name().toLowerCase(), session.getWorldCache().getDifficulty() == difficulty);
+                difficultyDropdown.option("%options.difficulty." + difficulty.name().toLowerCase(), session.getWorldCache().getDifficulty() == difficulty);
             }
-            builder.addComponent(difficultyDropdown);
+            builder.dropdown(difficultyDropdown);
         }
 
         if (session.getOpPermissionLevel() >= 2 || session.hasPermission("geyser.settings.gamerules")) {
-            builder.addComponent(new LabelComponent(LanguageUtils.getPlayerLocaleString("geyser.settings.title.game_rules", language)));
+            builder.label("geyser.settings.title.game_rules")
+                    .translator(LocaleUtils::getLocaleString); // we need translate gamerules next
+
+            WorldManager worldManager = GeyserConnector.getInstance().getWorldManager();
             for (GameRule gamerule : GameRule.values()) {
                 if (gamerule.equals(GameRule.UNKNOWN)) {
                     continue;
@@ -90,74 +81,54 @@ public class SettingsUtils {
 
                 // Add the relevant form item based on the gamerule type
                 if (Boolean.class.equals(gamerule.getType())) {
-                    builder.addComponent(new ToggleComponent(LocaleUtils.getLocaleString("gamerule." + gamerule.getJavaID(), language), GeyserConnector.getInstance().getWorldManager().getGameRuleBool(session, gamerule)));
+                    builder.toggle("gamerule." + gamerule.getJavaID(), worldManager.getGameRuleBool(session, gamerule));
                 } else if (Integer.class.equals(gamerule.getType())) {
-                    builder.addComponent(new InputComponent(LocaleUtils.getLocaleString("gamerule." + gamerule.getJavaID(), language), "", String.valueOf(GeyserConnector.getInstance().getWorldManager().getGameRuleInt(session, gamerule))));
+                    builder.input("gamerule." + gamerule.getJavaID(), "", String.valueOf(worldManager.getGameRuleInt(session, gamerule)));
                 }
             }
         }
 
-        session.setSettingsForm(builder.build());
+        builder.responseHandler((form, responseData) -> {
+            CustomFormResponse response = form.parseResponseAs(responseData);
+            if (response.isClosed() || response.isInvalid()) {
+                return;
             }
 
-    /**
-     * Handle the settings form response
-     *
-     * @param session The session that sent the response
-     * @param response The response string to parse
-     * @return True if the form was parsed correctly, false if not
-     */
-    public static boolean handleSettingsForm(GeyserSession session, String response) {
-        CustomFormWindow settingsForm = session.getSettingsForm();
-        settingsForm.setResponse(response);
-
-        CustomFormResponse settingsResponse = (CustomFormResponse) settingsForm.getResponse();
-        int offset = 0;
-
-        offset++; // Client settings title
-
-        session.getWorldCache().setShowCoordinates(settingsResponse.getToggleResponses().get(offset));
-        offset++;
+            session.getWorldCache().setShowCoordinates(response.next());
 
             if (session.getOpPermissionLevel() >= 2 || session.hasPermission("geyser.settings.server")) {
-            offset++; // Server settings title
-
-            GameMode gameMode = GameMode.values()[settingsResponse.getDropdownResponses().get(offset).getElementID()];
+                GameMode gameMode = GameMode.values()[(int) response.next()];
                 if (gameMode != null && gameMode != session.getGameMode()) {
                     session.getConnector().getWorldManager().setPlayerGameMode(session, gameMode);
                 }
-            offset++;
 
-            Difficulty difficulty = Difficulty.values()[settingsResponse.getDropdownResponses().get(offset).getElementID()];
+                Difficulty difficulty = Difficulty.values()[(int) response.next()];
                 if (difficulty != null && difficulty != session.getWorldCache().getDifficulty()) {
                     session.getConnector().getWorldManager().setDifficulty(session, difficulty);
                 }
-            offset++;
             }
 
             if (session.getOpPermissionLevel() >= 2 || session.hasPermission("geyser.settings.gamerules")) {
-            offset++; // Game rule title
-
                 for (GameRule gamerule : GameRule.values()) {
                     if (gamerule.equals(GameRule.UNKNOWN)) {
                         continue;
                     }
 
                     if (Boolean.class.equals(gamerule.getType())) {
-                    Boolean value = settingsResponse.getToggleResponses().get(offset).booleanValue();
+                        boolean value = response.next();
                         if (value != session.getConnector().getWorldManager().getGameRuleBool(session, gamerule)) {
                             session.getConnector().getWorldManager().setGameRule(session, gamerule.getJavaID(), value);
                         }
                     } else if (Integer.class.equals(gamerule.getType())) {
-                    int value = Integer.parseInt(settingsResponse.getInputResponses().get(offset));
+                        int value = Integer.parseInt(response.next());
                         if (value != session.getConnector().getWorldManager().getGameRuleInt(session, gamerule)) {
                             session.getConnector().getWorldManager().setGameRule(session, gamerule.getJavaID(), value);
                         }
                     }
-                offset++;
                 }
             }
+        });
 
-        return true;
+        return builder.build();
     }
 }