Further improves localization (#191). Allows switching and setting the chosen localization properly.

7 files changed, 116 insertions, 30 deletions

diff --git a/src/dialogs/certificateiodialog.cpp b/src/dialogs/certificateiodialog.cpp
index 75b9775..1f2b975 100644
--- a/src/dialogs/certificateiodialog.cpp
+++ b/src/dialogs/certificateiodialog.cpp
@@ -1,5 +1,6 @@
 #include "certificateiodialog.hpp"
 #include "ui_certificateiodialog.h"
+#include "kristall.hpp"
 
 #include <QFileDialog>
 #include <QPushButton>
@@ -11,6 +12,12 @@ CertificateIoDialog::CertificateIoDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    connect( // connect with "this" as context, so the connection will die when the window is destroyed
+        kristall::globals().localization.get(), &Localization::translationChanged,
+        this, [this]() { this->ui->retranslateUi(this); },
+        Qt::DirectConnection
+    );
+
     this->ui->key_type->clear();
     this->ui->key_type->addItem("RSA", QVariant::fromValue<int>(QSsl::Rsa));
     this->ui->key_type->addItem("ECDSA", QVariant::fromValue<int>(QSsl::Ec));
diff --git a/src/dialogs/certificatemanagementdialog.cpp b/src/dialogs/certificatemanagementdialog.cpp
index 9b43ba7..e2db96b 100644
--- a/src/dialogs/certificatemanagementdialog.cpp
+++ b/src/dialogs/certificatemanagementdialog.cpp
@@ -17,6 +17,12 @@ CertificateManagementDialog::CertificateManagementDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    connect( // connect with "this" as context, so the connection will die when the window is destroyed
+        kristall::globals().localization.get(), &Localization::translationChanged,
+        this, [this]() { this->ui->retranslateUi(this); },
+        Qt::DirectConnection
+    );
+
     this->ui->certificates->setModel(&identity_set);
     this->ui->certificates->expandAll();
 
diff --git a/src/dialogs/certificateselectiondialog.cpp b/src/dialogs/certificateselectiondialog.cpp
index 4d7d5ff..334fd7c 100644
--- a/src/dialogs/certificateselectiondialog.cpp
+++ b/src/dialogs/certificateselectiondialog.cpp
@@ -14,6 +14,13 @@ CertificateSelectionDialog::CertificateSelectionDialog(QWidget *parent) :
     ui(new Ui::CertificateSelectionDialog)
 {
     ui->setupUi(this);
+
+    connect( // connect with "this" as context, so the connection will die when the window is destroyed
+        kristall::globals().localization.get(), &Localization::translationChanged,
+        this, [this]() { this->ui->retranslateUi(this); },
+        Qt::DirectConnection
+    );
+
     this->ui->server_request->setVisible(false);
 
     this->ui->certificates->setModel(&kristall::globals().identities);
diff --git a/src/dialogs/newidentitiydialog.cpp b/src/dialogs/newidentitiydialog.cpp
index 567fc7d..dc22e5f 100644
--- a/src/dialogs/newidentitiydialog.cpp
+++ b/src/dialogs/newidentitiydialog.cpp
@@ -13,6 +13,12 @@ NewIdentitiyDialog::NewIdentitiyDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    connect( // connect with "this" as context, so the connection will die when the window is destroyed
+        kristall::globals().localization.get(), &Localization::translationChanged,
+        this, [this]() { this->ui->retranslateUi(this); },
+        Qt::DirectConnection
+    );
+
     ui->display_name->setText("Unnamed");
     ui->common_name->setText("Unnamed");
     ui->expiration_date->setDate(QDate::currentDate().addYears(1));
diff --git a/src/dialogs/settingsdialog.cpp b/src/dialogs/settingsdialog.cpp
index c97d74c..19b0fd9 100644
--- a/src/dialogs/settingsdialog.cpp
+++ b/src/dialogs/settingsdialog.cpp
@@ -21,6 +21,12 @@ SettingsDialog::SettingsDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    connect( // connect with "this" as context, so the connection will die when the window is destroyed
+        kristall::globals().localization.get(), &Localization::translationChanged,
+        this, [this]() { this->ui->retranslateUi(this); },
+        Qt::DirectConnection
+    );
+
     static_assert(DocumentStyle::Fixed == 0);
     static_assert(DocumentStyle::AutoDarkTheme == 1);
     static_assert(DocumentStyle::AutoLightTheme == 2);
@@ -103,6 +109,11 @@ SettingsDialog::SettingsDialog(QWidget *parent) :
             this->ui->style_scroll_layout->minimumSize().width()
             + this->ui->style_scroll_area->verticalScrollBar()->sizeHint().width());
     });
+
+    this->ui->selected_language->clear();
+    this->ui->selected_language->addItem(QIcon(), tr("System language"), QString(""));
+    this->ui->selected_language->addItem(QIcon(":/icons/languages/en.svg"), QLocale("en").nativeLanguageName(), QString("en"));
+    this->ui->selected_language->addItem(QIcon(":/icons/languages/ru.svg"), QLocale("ru").nativeLanguageName(), QString("ru"));
 }
 
 SettingsDialog::~SettingsDialog()
@@ -387,6 +398,32 @@ void SettingsDialog::setOptions(const GenericSettings &options)
     }
 }
 
+std::optional<QLocale> SettingsDialog::locale() const
+{
+    QString locale_str = this->ui->selected_language->currentData().toString();
+    if(locale_str.isEmpty())
+        return std::nullopt;
+    else
+        return QLocale(locale_str);
+}
+
+void SettingsDialog::setLocale(std::optional<QLocale> locale)
+{
+    if(locale == std::nullopt)
+    {
+        this->ui->selected_language->setCurrentIndex(0);
+    }
+    else
+    {
+        switch(locale->language())
+        {
+        default:               this->ui->selected_language->setCurrentIndex(0); break;
+        case QLocale::English: this->ui->selected_language->setCurrentIndex(1); break;
+        case QLocale::Russian: this->ui->selected_language->setCurrentIndex(2); break;
+        }
+    }
+}
+
 GenericSettings SettingsDialog::options() const
 {
     return this->current_options;
@@ -988,3 +1025,10 @@ void SettingsDialog::on_session_restore_behaviour_currentIndexChanged(int index)
 {
     this->current_options.session_restore_behaviour = GenericSettings::SessionRestoreBehaviour(this->ui->session_restore_behaviour->itemData(index).toInt());
 }
+
+void SettingsDialog::on_selected_language_currentIndexChanged(int index)
+{
+    auto const language_id = this->ui->selected_language->itemData(index, Qt::UserRole).toString();
+
+    kristall::globals().localization->translate(QLocale(language_id));
+}
diff --git a/src/dialogs/settingsdialog.hpp b/src/dialogs/settingsdialog.hpp
index 97b1549..9176cea 100644
--- a/src/dialogs/settingsdialog.hpp
+++ b/src/dialogs/settingsdialog.hpp
@@ -2,6 +2,7 @@
 #define SETTINGSDIALOG_HPP
 
 #include <QDialog>
+#include <optional>
 
 #include "renderers/geminirenderer.hpp"
 #include "protocolsetup.hpp"
@@ -39,6 +40,9 @@ public:
     GenericSettings options() const;
     void setOptions(GenericSettings const & options);
 
+    std::optional<QLocale> locale() const;
+    void setLocale(std::optional<QLocale> locale);
+
 private slots:
     void on_std_change_font_clicked();
 
@@ -178,6 +182,8 @@ private slots:
 
     void on_session_restore_behaviour_currentIndexChanged(int index);
 
+    void on_selected_language_currentIndexChanged(int index);
+
 private:
     void reloadStylePreview();
 
diff --git a/src/dialogs/settingsdialog.ui b/src/dialogs/settingsdialog.ui
index cfcd44f..45d9787 100644
--- a/src/dialogs/settingsdialog.ui
+++ b/src/dialogs/settingsdialog.ui
@@ -32,42 +32,42 @@
        <string>Generic</string>
       </attribute>
       <layout class="QFormLayout" name="formLayout">
-       <item row="0" column="0">
+       <item row="1" column="0">
         <widget class="QLabel" name="label_14">
          <property name="text">
           <string>Start Page:</string>
          </property>
         </widget>
        </item>
-       <item row="0" column="1">
+       <item row="1" column="1">
         <widget class="QLineEdit" name="start_page">
          <property name="placeholderText">
           <string>about://blank</string>
          </property>
         </widget>
        </item>
-       <item row="1" column="0">
+       <item row="2" column="0">
         <widget class="QLabel" name="label_40">
          <property name="text">
           <string>Search engine:</string>
          </property>
         </widget>
        </item>
-       <item row="1" column="1">
+       <item row="2" column="1">
         <widget class="QComboBox" name="search_engine">
          <property name="editable">
           <bool>true</bool>
          </property>
         </widget>
        </item>
-       <item row="2" column="0">
+       <item row="3" column="0">
         <widget class="QLabel" name="label_29">
          <property name="text">
           <string>Additional toolbar buttons</string>
          </property>
         </widget>
        </item>
-       <item row="2" column="1">
+       <item row="3" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_99">
          <item>
           <widget class="QCheckBox" name="enable_home_btn">
@@ -99,54 +99,54 @@
          </item>
         </layout>
        </item>
-       <item row="3" column="0">
+       <item row="4" column="0">
         <widget class="QLabel" name="label_19">
          <property name="text">
           <string>Startup Behaviour</string>
          </property>
         </widget>
        </item>
-       <item row="3" column="1">
+       <item row="4" column="1">
         <widget class="QComboBox" name="session_restore_behaviour"/>
        </item>
-       <item row="4" column="0">
+       <item row="5" column="0">
         <widget class="QLabel" name="label_15">
          <property name="text">
           <string>UI Theme</string>
          </property>
         </widget>
        </item>
-       <item row="4" column="1">
+       <item row="5" column="1">
         <widget class="QComboBox" name="ui_theme"/>
        </item>
-       <item row="5" column="0">
+       <item row="6" column="0">
         <widget class="QLabel" name="label_34">
          <property name="text">
           <string>Icon Theme</string>
          </property>
         </widget>
        </item>
-       <item row="5" column="1">
+       <item row="6" column="1">
         <widget class="QComboBox" name="icon_theme"/>
        </item>
-       <item row="6" column="0">
+       <item row="7" column="0">
         <widget class="QLabel" name="label_1">
          <property name="text">
           <string>UI Density</string>
          </property>
         </widget>
        </item>
-       <item row="6" column="1">
+       <item row="7" column="1">
         <widget class="QComboBox" name="ui_density"/>
        </item>
-       <item row="7" column="0">
+       <item row="8" column="0">
         <widget class="QLabel" name="label_16">
          <property name="text">
           <string>Enabled Protocols</string>
          </property>
         </widget>
        </item>
-       <item row="7" column="1">
+       <item row="8" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout">
          <item>
           <widget class="QCheckBox" name="enable_gemini">
@@ -191,14 +191,14 @@
          </item>
         </layout>
        </item>
-       <item row="8" column="0">
+       <item row="9" column="0">
         <widget class="QLabel" name="label_22">
          <property name="text">
           <string>Unknown Scheme</string>
          </property>
         </widget>
        </item>
-       <item row="8" column="1">
+       <item row="9" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_7">
          <item>
           <widget class="QRadioButton" name="scheme_os_default">
@@ -222,38 +222,38 @@
          </item>
         </layout>
        </item>
-       <item row="9" column="0">
+       <item row="10" column="0">
         <widget class="QLabel" name="label_26">
          <property name="text">
           <string>Max. Number of Redirections</string>
          </property>
         </widget>
        </item>
-       <item row="9" column="1">
+       <item row="10" column="1">
         <widget class="QSpinBox" name="max_redirects">
          <property name="value">
           <number>5</number>
          </property>
         </widget>
        </item>
-       <item row="10" column="0">
+       <item row="11" column="0">
         <widget class="QLabel" name="label_27">
          <property name="text">
           <string>Redirection Handling</string>
          </property>
         </widget>
        </item>
-       <item row="10" column="1">
+       <item row="11" column="1">
         <widget class="QComboBox" name="redirection_mode"/>
        </item>
-       <item row="11" column="0">
+       <item row="12" column="0">
         <widget class="QLabel" name="label_28">
          <property name="text">
           <string>Network Timeout</string>
          </property>
         </widget>
        </item>
-       <item row="11" column="1">
+       <item row="12" column="1">
         <widget class="QSpinBox" name="network_timeout">
          <property name="suffix">
           <string> ms</string>
@@ -266,6 +266,16 @@
          </property>
         </widget>
        </item>
+       <item row="0" column="0">
+        <widget class="QLabel" name="label_44">
+         <property name="text">
+          <string>Language</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QComboBox" name="selected_language"/>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="display_tab">
@@ -1651,14 +1661,14 @@
   </connection>
  </connections>
  <buttongroups>
-  <buttongroup name="buttonGroup_7"/>
-  <buttongroup name="buttonGroup_6"/>
-  <buttongroup name="buttonGroup_5"/>
-  <buttongroup name="buttonGroup"/>
-  <buttongroup name="buttonGroup_9"/>
-  <buttongroup name="buttonGroup_8"/>
   <buttongroup name="buttonGroup_3"/>
+  <buttongroup name="buttonGroup"/>
+  <buttongroup name="buttonGroup_5"/>
   <buttongroup name="buttonGroup_4"/>
+  <buttongroup name="buttonGroup_7"/>
+  <buttongroup name="buttonGroup_6"/>
   <buttongroup name="buttonGroup_2"/>
+  <buttongroup name="buttonGroup_8"/>
+  <buttongroup name="buttonGroup_9"/>
  </buttongroups>
 </ui>