Add translations

CMakeLists.txt

@@ -18,7 +18,7 @@ include(CheckIncludeFiles)
 include(CheckSymbolExists)
 include(FeatureSummary)
 
-find_package(Qt5 COMPONENTS Core DBus Widgets X11Extras Quick REQUIRED)
+find_package(Qt5 COMPONENTS Core DBus Widgets X11Extras Quick LinguistTools REQUIRED)
 find_package(X11)
 
 # ----------- Check --------------------
@@ -64,3 +64,28 @@ add_subdirectory(screenlocker)
 add_subdirectory(checkpass)
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
+
+
+# Get the installation directory from qmake
+get_target_property(QT_QMAKE_EXECUTABLE ${Qt5Core_QMAKE_EXECUTABLE} IMPORTED_LOCATION)
+if(NOT QT_QMAKE_EXECUTABLE)
+    message(FATAL_ERROR "qmake is not found.")
+endif()
+
+execute_process(COMMAND ${QT_QMAKE_EXECUTABLE} -query QT_INSTALL_QML
+    OUTPUT_VARIABLE INSTALL_QMLDIR
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+if(INSTALL_QMLDIR)
+    message(STATUS "qml directory:" "${INSTALL_QMLDIR}")
+else()
+    message(FATAL_ERROR "qml directory cannot be detected.")
+endif()
+
+# Install translations
+file(GLOB TS_FILES translations/*.ts)
+qt5_create_translation(QM_FILES ${TS_FILES})
+add_custom_target(translations DEPENDS ${QM_FILES} SOURCES ${TS_FILES})
+add_dependencies(cutefish-screenlocker translations)
+install(FILES ${QM_FILES} DESTINATION /usr/share/cutefish-screenlocker/translations)
+

screenlocker/main.cpp

@@ -1,8 +1,23 @@
 #include "application.h"
+#include <QTranslator>
+#include <QLocale>
 
 int main(int argc, char *argv[])
 {
     Application app(argc, argv);
+
+    // Translations
+    QLocale locale;
+    QString qmFilePath = QString("%1/%2.qm").arg("/usr/share/cutefish-screenlocker/translations/").arg(locale.name());
+    if (QFile::exists(qmFilePath)) {
+        QTranslator *translator = new QTranslator(app.instance());
+        if (translator->load(qmFilePath)) {
+            app.installTranslator(translator);
+        } else {
+            translator->deleteLater();
+        }
+    }
+
     app.setQuitOnLastWindowClosed(false);
     app.initialViewSetup();
     return app.exec();

translations/en_US.ts

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1">
+<context>
+    <name>LockScreen</name>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="202"/>
+        <source>Password</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="225"/>
+        <source>Unlock</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="274"/>
+        <source>Please enter your password</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="284"/>
+        <source>Unlocking failed</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+</TS>

translations/zh_CN.ts

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1">
+<context>
+    <name>LockScreen</name>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="202"/>
+        <source>Password</source>
+        <translation>密码</translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="225"/>
+        <source>Unlock</source>
+        <translation>解锁</translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="274"/>
+        <source>Please enter your password</source>
+        <translation>请输入您的密码</translation>
+    </message>
+    <message>
+        <location filename="../screenlocker/qml/LockScreen.qml" line="284"/>
+        <source>Unlocking failed</source>
+        <translation>解锁失败</translation>
+    </message>
+</context>
+</TS>