texteditor example: implement file saving

Change-Id: I7c8321089d9187aeb0093d0c0361950385b92cba
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@theqtcompany.com>

3 files changed, 51 insertions, 3 deletions

diff --git a/examples/quick/controls/texteditor/qml/main.qml b/examples/quick/controls/texteditor/qml/main.qml
index 4e11a4f5..cefbf434 100644
--- a/examples/quick/controls/texteditor/qml/main.qml
+++ b/examples/quick/controls/texteditor/qml/main.qml
@@ -157,8 +157,13 @@ ApplicationWindow {
 
     FileDialog {
         id: fileDialog
-        nameFilters: ["Text files (*.txt)", "HTML files (*.html)"]
-        onAccepted: document.fileUrl = fileUrl
+        nameFilters: ["Text files (*.txt)", "HTML files (*.html, *.htm)"]
+        onAccepted: {
+            if (fileDialog.selectExisting)
+                document.fileUrl = fileUrl
+            else
+                document.saveAs(fileUrl, selectedNameFilter)
+        }
     }
 
     ColorDialog {
@@ -172,13 +177,28 @@ ApplicationWindow {
         iconSource: "images/fileopen.png"
         iconName: "document-open"
         text: "Open"
-        onTriggered: fileDialog.open()
+        onTriggered: {
+            fileDialog.selectExisting = true
+            fileDialog.open()
+        }
+    }
+
+    Action {
+        id: fileSaveAsAction
+        iconSource: "images/filesave.png"
+        iconName: "document-save"
+        text: "Save As…"
+        onTriggered: {
+            fileDialog.selectExisting = false
+            fileDialog.open()
+        }
     }
 
     menuBar: MenuBar {
         Menu {
             title: "&File"
             MenuItem { action: fileOpenAction }
+            MenuItem { action: fileSaveAsAction }
             MenuItem { text: "Quit"; onTriggered: Qt.quit() }
         }
         Menu {
@@ -303,6 +323,10 @@ ApplicationWindow {
         Component.onCompleted: forceActiveFocus()
     }
 
+    MessageDialog {
+        id: errorDialog
+    }
+
     DocumentHandler {
         id: document
         target: textArea
@@ -325,5 +349,9 @@ ApplicationWindow {
                 fontFamilyComboBox.special = false
             }
         }
+        onError: {
+            errorDialog.text = message
+            errorDialog.visible = true
+        }
     }
 }
diff --git a/examples/quick/controls/texteditor/src/documenthandler.cpp b/examples/quick/controls/texteditor/src/documenthandler.cpp
index 65ae9fb8..2e9987a1 100644
--- a/examples/quick/controls/texteditor/src/documenthandler.cpp
+++ b/examples/quick/controls/texteditor/src/documenthandler.cpp
@@ -119,6 +119,24 @@ void DocumentHandler::setText(const QString &arg)
     }
 }
 
+void DocumentHandler::saveAs(const QUrl &arg, const QString &fileType)
+{
+    bool isHtml = fileType.contains(QLatin1String("htm"));
+    QLatin1String ext(isHtml ? ".html" : ".txt");
+    QString localPath = arg.toLocalFile();
+    if (!localPath.endsWith(ext))
+        localPath += ext;
+    QFile f(localPath);
+    if (!f.open(QFile::WriteOnly | QFile::Truncate | (isHtml ? QFile::NotOpen : QFile::Text))) {
+        emit error(tr("Cannot save: ") + f.errorString());
+        return;
+    }
+    f.write((isHtml ? m_doc->toHtml() : m_doc->toPlainText()).toLocal8Bit());
+    f.close();
+    qDebug() << "saved to" << localPath;
+    setFileUrl(QUrl::fromLocalFile(localPath));
+}
+
 QUrl DocumentHandler::fileUrl() const
 {
     return m_fileUrl;
diff --git a/examples/quick/controls/texteditor/src/documenthandler.h b/examples/quick/controls/texteditor/src/documenthandler.h
index 8359f68c..f2bd4eea 100644
--- a/examples/quick/controls/texteditor/src/documenthandler.h
+++ b/examples/quick/controls/texteditor/src/documenthandler.h
@@ -122,6 +122,7 @@ public Q_SLOTS:
 
     void setFileUrl(const QUrl &arg);
     void setText(const QString &arg);
+    void saveAs(const QUrl &arg, const QString &fileType);
 
     void setDocumentTitle(QString arg);
 
@@ -146,6 +147,7 @@ Q_SIGNALS:
 
     void textChanged();
     void documentTitleChanged();
+    void error(QString message);
 
 private:
     void reset();