Add C++ Clipboard class accessible from QML

harmonyqml.pro

@@ -12,8 +12,8 @@ RCC_DIR     = $$BUILD_DIR/rcc
 QRC_FILE = $$BUILD_DIR/resources.qrc
 
 RESOURCES += $$QRC_FILE
-HEADERS   += src/utils.h
+HEADERS   += src/utils.h src/clipboard.h
-SOURCES   += src/main.cpp src/utils.cpp
+SOURCES   += src/main.cpp src/utils.cpp src/clipboard.cpp
 TARGET     = harmonyqml
 
 

src/clipboard.cpp

@@ -0,0 +1,38 @@
+#include <QClipboard>
+#include "clipboard.h"
+
+
+Clipboard::Clipboard(QObject *parent)
+    : QObject(parent) {
+
+    connect(m_clipboard, &QClipboard::dataChanged,
+            this, &Clipboard::textChanged);
+
+    connect(m_clipboard, &QClipboard::selectionChanged,
+            this, &Clipboard::selectionChanged);
+}
+
+
+QString Clipboard::text() const {
+    return m_clipboard->text(QClipboard::Clipboard);
+}
+
+void Clipboard::setText(const QString &text) {
+    m_clipboard->setText(text, QClipboard::Clipboard);
+}
+
+
+QString Clipboard::selection() const {
+    return m_clipboard->text(QClipboard::Selection);
+}
+
+void Clipboard::setSelection(const QString &text) {
+    if (m_clipboard->supportsSelection()) {
+        m_clipboard->setText(text, QClipboard::Selection);
+    }
+}
+
+
+bool Clipboard::supportsSelection() const {
+    return m_clipboard->supportsSelection();
+}

src/clipboard.h

@@ -0,0 +1,37 @@
+#ifndef CLIPBOARD_H
+#define CLIPBOARD_H
+
+#include <QGuiApplication>
+#include <QObject>
+
+
+class Clipboard : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
+    Q_PROPERTY(QString selection READ selection WRITE setSelection
+               NOTIFY selectionChanged)
+
+    Q_PROPERTY(bool supportsSelection READ supportsSelection CONSTANT)
+
+public:
+    explicit Clipboard(QObject *parent = 0);
+
+    QString text() const;
+    void setText(const QString &text);
+
+    QString selection() const;
+    void setSelection(const QString &text);
+
+    bool supportsSelection() const;
+
+signals:
+    void textChanged();
+    void selectionChanged();
+
+private:
+    QClipboard *m_clipboard = QGuiApplication::clipboard();
+};
+
+
+#endif

src/main.cpp

@@ -5,6 +5,7 @@
 #include <QFileInfo>
 
 #include "utils.h"
+#include "clipboard.h"
 
 
 int main(int argc, char *argv[]) {
@@ -25,6 +26,7 @@ int main(int argc, char *argv[]) {
 #endif
 
     objectContext->setContextProperty("CppUtils", new Utils());
+    objectContext->setContextProperty("Clipboard", new Clipboard());
 
     QFileInfo qrcPath(":src/qml/Window.qml");