Custom environment variables UI and implementation

Signed-off-by: TheKodeToad <TheKodeToad@proton.me>

launcher/ui/pages/global/EnvironmentVariablesPage.cpp

@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QTabBar>
+#include <QVBoxLayout>
+
+#include "EnvironmentVariablesPage.h"
+
+EnvironmentVariablesPage::EnvironmentVariablesPage(QWidget* parent) : QWidget(parent)
+{
+    auto verticalLayout = new QVBoxLayout(this);
+    verticalLayout->setContentsMargins(0, 0, 0, 0);
+    variables = new EnvironmentVariables(this);
+    variables->setContentsMargins(6, 6, 6, 6);
+    verticalLayout->addWidget(variables);
+
+    variables->initialize(false, true, false, APPLICATION->settings()->get("Env").toMap());
+}
+
+QString EnvironmentVariablesPage::displayName() const
+{
+    return tr("Environment Variables");
+}
+
+QIcon EnvironmentVariablesPage::icon() const
+{
+    return APPLICATION->getThemedIcon("environment-variables");
+}
+
+QString EnvironmentVariablesPage::id() const
+{
+    return "environment-variables";
+}
+
+QString EnvironmentVariablesPage::helpPage() const
+{
+    return "Environment-variables";
+}
+
+bool EnvironmentVariablesPage::apply()
+{
+    APPLICATION->settings()->set("Env", variables->value());
+    return true;
+}
+
+void EnvironmentVariablesPage::retranslate()
+{
+    variables->retranslate();
+}

launcher/ui/pages/global/EnvironmentVariablesPage.h

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <Application.h>
+
+#include "ui/pages/BasePage.h"
+#include "ui/widgets/EnvironmentVariables.h"
+
+class EnvironmentVariablesPage : public QWidget, public BasePage {
+    Q_OBJECT
+
+   public:
+    explicit EnvironmentVariablesPage(QWidget* parent = nullptr);
+
+    QString displayName() const override;
+    QIcon icon() const override;
+    QString id() const override;
+    QString helpPage() const override;
+
+    bool apply() override;
+    void retranslate() override;
+
+   private:
+    EnvironmentVariables* variables;
+};

launcher/ui/pages/instance/InstanceSettingsPage.cpp

@@ -84,6 +84,9 @@ void InstanceSettingsPage::globalSettingsButtonClicked(bool)
         case 2:
             APPLICATION->ShowGlobalSettings(this, "custom-commands");
             return;
+        case 3:
+            APPLICATION->ShowGlobalSettings(this, "environment-variables");
+            return;
         default:
             APPLICATION->ShowGlobalSettings(this, "minecraft-settings");
             return;
@@ -217,6 +220,11 @@ void InstanceSettingsPage::applySettings()
         m_settings->reset("PostExitCommand");
     }
 
+    // Environment Variables
+    m_settings->set("UseEnv", ui->environmentVariables->checked());
+    m_settings->set("OverrideEnv", ui->environmentVariables->override());
+    m_settings->set("Env", ui->environmentVariables->value());
+
     // Workarounds
     bool workarounds = ui->nativeWorkaroundsGroupBox->isChecked();
     m_settings->set("OverrideNativeWorkarounds", workarounds);
@@ -345,6 +353,14 @@ void InstanceSettingsPage::loadSettings()
         m_settings->get("PostExitCommand").toString()
     );
 
+    // Environment variables
+    ui->environmentVariables->initialize(
+        true,
+        m_settings->get("UseEnv").toBool(),
+        m_settings->get("OverrideEnv").toBool(),
+        m_settings->get("Env").toMap()
+    );
+
     // Workarounds
     ui->nativeWorkaroundsGroupBox->setChecked(m_settings->get("OverrideNativeWorkarounds").toBool());
     ui->useNativeGLFWCheck->setChecked(m_settings->get("UseNativeGLFW").toBool());
@@ -492,6 +508,7 @@ void InstanceSettingsPage::retranslate()
 {
     ui->retranslateUi(this);
     ui->customCommands->retranslate();  // TODO: why is this seperate from the others?
+    ui->environmentVariables->retranslate();
 }
 
 void InstanceSettingsPage::updateThresholds()

launcher/ui/pages/instance/InstanceSettingsPage.ui

@@ -35,13 +35,10 @@
    </item>
    <item>
     <widget class="QTabWidget" name="settingsTabs">
-     <property name="tabShape">
-      <enum>QTabWidget::Rounded</enum>
-     </property>
      <property name="currentIndex">
       <number>0</number>
      </property>
-     <widget class="QWidget" name="minecraftTab">
+     <widget class="QWidget" name="minecraftPage">
       <attribute name="title">
        <string notr="true">Java</string>
       </attribute>
@@ -246,7 +243,7 @@
        </item>
       </layout>
      </widget>
-     <widget class="QWidget" name="javaTab">
+     <widget class="QWidget" name="javaPage">
       <attribute name="title">
        <string>Game windows</string>
       </attribute>
@@ -406,7 +403,7 @@
        </item>
       </layout>
      </widget>
-     <widget class="QWidget" name="tab">
+     <widget class="QWidget" name="customCommandsPage">
       <attribute name="title">
        <string>Custom commands</string>
       </attribute>
@@ -416,6 +413,16 @@
        </item>
       </layout>
      </widget>
+     <widget class="QWidget" name="environmentVariablesPage">
+      <attribute name="title">
+       <string>Environment variables</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_16">
+       <item>
+        <widget class="EnvironmentVariables" name="environmentVariables" native="true"/>
+       </item>
+      </layout>
+     </widget>
      <widget class="QWidget" name="workaroundsPage">
       <attribute name="title">
        <string>Workarounds</string>
@@ -669,6 +676,12 @@
    <header>ui/widgets/CustomCommands.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>EnvironmentVariables</class>
+   <extends>QWidget</extends>
+   <header>ui/widgets/EnvironmentVariables.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>openGlobalJavaSettingsButton</tabstop>

launcher/ui/widgets/EnvironmentVariables.cpp

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QKeyEvent>
+
+#include "Application.h"
+#include "EnvironmentVariables.h"
+#include "ui/dialogs/CustomMessageBox.h"
+#include "ui_EnvironmentVariables.h"
+
+EnvironmentVariables::EnvironmentVariables(QWidget* parent) : QWidget(parent), ui(new Ui::EnvironmentVariables)
+{
+    ui->setupUi(this);
+    ui->list->installEventFilter(this);
+
+    ui->list->sortItems(0, Qt::AscendingOrder);
+    ui->list->setSortingEnabled(true);
+    ui->list->header()->resizeSections(QHeaderView::Interactive);
+    ui->list->header()->resizeSection(0, 200);
+
+    connect(ui->add, &QPushButton::clicked, this, [this] {
+        auto item = new QTreeWidgetItem(ui->list);
+        item->setText(0, "ENV_VAR");
+        item->setText(1, "value");
+        item->setFlags(item->flags() | Qt::ItemIsEditable);
+        ui->list->addTopLevelItem(item);
+        ui->list->selectionModel()->select(ui->list->model()->index(ui->list->indexOfTopLevelItem(item), 0),
+                                           QItemSelectionModel::ClearAndSelect | QItemSelectionModel::SelectionFlag::Rows);
+        ui->list->editItem(item);
+    });
+
+    connect(ui->remove, &QPushButton::clicked, this, [this] {
+        for (QTreeWidgetItem* item : ui->list->selectedItems())
+            ui->list->takeTopLevelItem(ui->list->indexOfTopLevelItem(item));
+    });
+
+    connect(ui->clear, &QPushButton::clicked, this, [this] { ui->list->clear(); });
+
+    connect(ui->globalOverride, &QCheckBox::clicked, this, [this](bool state) {
+        if (!state)
+            return;
+
+        auto global = APPLICATION->settings()->get("Env").toMap();
+        if (global.isEmpty())
+            return;
+
+        auto response = CustomMessageBox::selectable(
+                            this, tr("Reset"),
+                            tr("You have chosen to ignore global settings.\n\nWould you like to clear the current variables and copy "
+                               "the global variables over?"),
+                            QMessageBox::Question, QMessageBox::Yes | QMessageBox::No, QMessageBox::No)
+                            ->exec();
+
+        if (response == QMessageBox::Yes)
+            initialize(true, checked(), override(), global);
+    });
+}
+
+EnvironmentVariables::~EnvironmentVariables()
+{
+    delete ui;
+}
+
+void EnvironmentVariables::initialize(bool instance, bool checked, bool override, const QMap<QString, QVariant>& value)
+{
+    // update widgets to settings
+    ui->groupBox->setCheckable(instance);
+    ui->groupBox->setChecked(checked);
+    ui->globalOverride->setVisible(instance);
+    ui->globalOverride->setChecked(override);
+
+    // populate
+    ui->list->clear();
+    for (auto iter = value.begin(); iter != value.end(); iter++) {
+        auto item = new QTreeWidgetItem(ui->list);
+        item->setText(0, iter.key());
+        item->setText(1, iter.value().toString());
+        item->setFlags(item->flags() | Qt::ItemIsEditable);
+        ui->list->addTopLevelItem(item);
+    }
+}
+
+bool EnvironmentVariables::eventFilter(QObject* watched, QEvent* event)
+{
+    if (watched == ui->list && event->type() == QEvent::KeyPress) {
+        const QKeyEvent* keyEvent = (QKeyEvent*)event;
+        if (keyEvent->key() == Qt::Key_Delete) {
+            emit ui->remove->clicked();
+            return true;
+        }
+    }
+
+    return QObject::eventFilter(watched, event);
+}
+
+void EnvironmentVariables::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
+bool EnvironmentVariables::checked() const
+{
+    if (!ui->groupBox->isCheckable())
+        return true;
+    return ui->groupBox->isChecked();
+}
+
+bool EnvironmentVariables::override() const
+{
+    if (!ui->globalOverride->isVisible())
+        return false;
+    return ui->globalOverride->isChecked();
+}
+
+QMap<QString, QVariant> EnvironmentVariables::value() const
+{
+    QMap<QString, QVariant> result;
+    QTreeWidgetItem* item = ui->list->topLevelItem(0);
+    for (int i = 1; item != nullptr; item = ui->list->topLevelItem(i++))
+        result[item->text(0)] = item->text(1);
+
+    return result;
+}

launcher/ui/widgets/EnvironmentVariables.h

@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QMap>
+#include <QWidget>
+
+namespace Ui {
+class EnvironmentVariables;
+}
+
+class EnvironmentVariables : public QWidget {
+    Q_OBJECT
+
+   public:
+    explicit EnvironmentVariables(QWidget* state = nullptr);
+    ~EnvironmentVariables() override;
+    void initialize(bool instance, bool checked, bool override, const QMap<QString, QVariant>& value);
+    bool eventFilter(QObject* watched, QEvent* event) override;
+
+    void retranslate();
+    bool checked() const;
+    bool override() const;
+    QMap<QString, QVariant> value() const;
+
+   private:
+    Ui::EnvironmentVariables* ui;
+};

launcher/ui/widgets/EnvironmentVariables.ui

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>EnvironmentVariables</class>
+ <widget class="QWidget" name="EnvironmentVariables">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>565</width>
+    <height>410</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>&amp;Environment Variables</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_3">
+      <item>
+       <widget class="QCheckBox" name="globalOverride">
+        <property name="text">
+         <string>&amp;Ignore global settings</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QTreeWidget" name="list">
+        <property name="alternatingRowColors">
+         <bool>true</bool>
+        </property>
+        <property name="selectionMode">
+         <enum>QAbstractItemView::ExtendedSelection</enum>
+        </property>
+        <property name="rootIsDecorated">
+         <bool>false</bool>
+        </property>
+        <property name="itemsExpandable">
+         <bool>false</bool>
+        </property>
+        <property name="animated">
+         <bool>true</bool>
+        </property>
+        <property name="expandsOnDoubleClick">
+         <bool>false</bool>
+        </property>
+        <column>
+         <property name="text">
+          <string>Name</string>
+         </property>
+        </column>
+        <column>
+         <property name="text">
+          <string>Value</string>
+         </property>
+        </column>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="buttons">
+        <item>
+         <widget class="QPushButton" name="add">
+          <property name="text">
+           <string>&amp;Add</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="remove">
+          <property name="text">
+           <string>&amp;Remove</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="clear">
+          <property name="text">
+           <string>&amp;Clear</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>