Basic WGT/WGZ support.

Task-number: QT-524

1 files changed, 98 insertions, 2 deletions

diff --git a/tools/qmlviewer/qmlviewer.cpp b/tools/qmlviewer/qmlviewer.cpp
index 831c680..b838f40 100644
--- a/tools/qmlviewer/qmlviewer.cpp
+++ b/tools/qmlviewer/qmlviewer.cpp
@@ -51,7 +51,12 @@
 #include <QAbstractAnimation>
 #include "deviceskin.h"
 
+#include <private/qzipreader_p.h>
+
 #include <QSettings>
+#include <QXmlStreamReader>
+#include <QBuffer>
+#include <QNetworkReply>
 #include <QNetworkCookieJar>
 #include <QNetworkDiskCache>
 #include <QNetworkAccessManager>
@@ -441,7 +446,7 @@ void QmlViewer::createMenu(QMenuBar *menu, QMenu *flatmenu)
 
     QAction *openAction = new QAction(tr("&Open..."), parent);
     openAction->setShortcut(QKeySequence("Ctrl+O"));
-    connect(openAction, SIGNAL(triggered()), this, SLOT(open()));
+    connect(openAction, SIGNAL(triggered()), this, SLOT(openFile()));
     fileMenu->addAction(openAction);
 
     QAction *reloadAction = new QAction(tr("&Reload"), parent);
@@ -758,7 +763,98 @@ void QmlViewer::reload()
     openQml(currentFileOrUrl);
 }
 
-void QmlViewer::open()
+void QmlViewer::open(const QString& doc)
+{
+    if (doc.endsWith(".wgt",Qt::CaseInsensitive)
+     || doc.endsWith(".wgz",Qt::CaseInsensitive))
+        openWgt(doc);
+    else
+        openQml(doc);
+}
+
+void QmlViewer::openWgt(const QString& doc)
+{
+    // XXX This functionality could be migrated to QmlView once refined
+
+    QUrl url(doc);
+    if (url.isRelative())
+        url = QUrl::fromLocalFile(doc);
+    canvas->reset();
+    QNetworkAccessManager * nam = canvas->engine()->networkAccessManager();
+    wgtreply = nam->get(QNetworkRequest(url));
+    connect(wgtreply,SIGNAL(finished()),this,SLOT(unpackWgt()));
+}
+
+static void removeRecursive(const QString& dirname)
+{
+    QDir dir(dirname);
+    QFileInfoList entries(dir.entryInfoList(QDir::Dirs|QDir::Files|QDir::NoDotAndDotDot));
+    for (int i = 0; i < entries.count(); ++i)
+        if (entries[i].isDir())
+            removeRecursive(entries[i].filePath());
+        else
+            dir.remove(entries[i].fileName());
+    QDir().rmdir(dirname);
+}
+
+void QmlViewer::unpackWgt()
+{
+    QByteArray all = wgtreply->readAll();
+    QBuffer buf(&all);
+    buf.open(QIODevice::ReadOnly);
+    QZipReader zip(&buf);
+    /*
+    for (int i=0; i<zip.count(); ++i) {
+        QZipReader::FileInfo info = zip.entryInfoAt(i);
+        qDebug() << "zip:" << info.filePath;
+    }
+    */
+    wgtdir = QDir::tempPath()+QDir::separator()+QLatin1String("qmlviewer-wgt");
+    removeRecursive(wgtdir);
+    QDir().mkpath(wgtdir);
+    zip.extractAll(wgtdir);
+
+    QString rootfile;
+
+    if (wgtreply->header(QNetworkRequest::ContentTypeHeader).toString() == "application/widget" || wgtreply->url().path().endsWith(".wgt",Qt::CaseInsensitive)) {
+        // W3C Draft http://www.w3.org/TR/2009/CR-widgets-20091201
+        QFile configfile(wgtdir+QDir::separator()+"config.xml");
+        if (configfile.open(QIODevice::ReadOnly)) {
+            QXmlStreamReader config(&configfile);
+            if (config.readNextStartElement() && config.name() == "widget") {
+                while (config.readNextStartElement()) {
+                    if (config.name() == "content") {
+                        rootfile = wgtdir + QDir::separator();
+                        rootfile += config.attributes().value(QLatin1String("src"));
+                    }
+                    // XXX process other config
+
+                    config.skipCurrentElement();
+                }
+            }
+        } else {
+            qWarning("No config.xml found - non-standard WGT file");
+        }
+        if (rootfile.isEmpty()) {
+            QString def = wgtdir+QDir::separator()+"index.qml";
+            if (QFile::exists(def))
+                rootfile = def;
+        }
+    } else {
+        // Just find index.qml, preferably at the root
+        for (int i=0; i<zip.count(); ++i) {
+            QZipReader::FileInfo info = zip.entryInfoAt(i);
+            if (info.filePath.compare(QLatin1String("index.qml"),Qt::CaseInsensitive)==0)
+                rootfile = wgtdir+QDir::separator()+info.filePath;
+            if (rootfile.isEmpty() && info.filePath.endsWith("/index.qml",Qt::CaseInsensitive))
+                rootfile = wgtdir+QDir::separator()+info.filePath;
+        }
+    }
+
+    openQml(rootfile);
+}
+
+void QmlViewer::openFile()
 {
     QString cur = canvas->url().toLocalFile();
     if (useQmlFileBrowser) {