From 027a3a94955127712a76f15430a1f6cc0288722e Mon Sep 17 00:00:00 2001
From: Warwick Allison <warwick.allison@nokia.com>
Date: Tue, 5 Jan 2010 15:55:58 +1000
Subject: Basic WGT/WGZ support.

Task-number: QT-524
---
 tools/qmlviewer/main.cpp      |   6 +--
 tools/qmlviewer/qmlviewer.cpp | 100 +++++++++++++++++++++++++++++++++++++++++-
 tools/qmlviewer/qmlviewer.h   |   9 +++-
 3 files changed, 109 insertions(+), 6 deletions(-)

diff --git a/tools/qmlviewer/main.cpp b/tools/qmlviewer/main.cpp
index 412d3ef..d1ee733 100644
--- a/tools/qmlviewer/main.cpp
+++ b/tools/qmlviewer/main.cpp
@@ -326,14 +326,14 @@ int main(int argc, char ** argv)
     if (fullScreen && maximized)
         qWarning() << "Both -fullscreen and -maximized specified. Using -fullscreen.";
     if (!fileName.isEmpty()) {
-        viewer.openQml(fileName);
+        viewer.open(fileName);
         fullScreen ? viewer.showFullScreen() : maximized ? viewer.showMaximized() : viewer.show();
     } else {
         if (!useNativeFileBrowser)
-            viewer.open();
+            viewer.openFile();
         fullScreen ? viewer.showFullScreen() : maximized ? viewer.showMaximized() : viewer.show();
         if (useNativeFileBrowser)
-            viewer.open();
+            viewer.openFile();
     }
     viewer.raise();
 
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) {
diff --git a/tools/qmlviewer/qmlviewer.h b/tools/qmlviewer/qmlviewer.h
index 717258c..39bedc3 100644
--- a/tools/qmlviewer/qmlviewer.h
+++ b/tools/qmlviewer/qmlviewer.h
@@ -56,6 +56,7 @@ class QmlGraphicsTestEngine;
 class QProcess;
 class RecordingDialog;
 class QmlGraphicsTester;
+class QNetworkReply;
 
 class QmlViewer
 #if defined(Q_OS_SYMBIAN)
@@ -99,8 +100,10 @@ public:
 
 public slots:
     void sceneResized(QSize size);
+    void open(const QString&);
+    void openWgt(const QString&);
     void openQml(const QString&);
-    void open();
+    void openFile();
     void reload();
     void takeSnapShot();
     void toggleRecording();
@@ -131,6 +134,7 @@ private slots:
     void setLandscape();
     void startNetwork();
     void toggleFullScreen();
+    void unpackWgt();
 
 private:
     void setupProxy();
@@ -173,6 +177,9 @@ private:
     ScriptOptions m_scriptOptions;
     QmlGraphicsTester *tester;
 
+    QNetworkReply *wgtreply;
+    QString wgtdir;
+
     bool useQmlFileBrowser;
 };
 Q_DECLARE_OPERATORS_FOR_FLAGS(QmlViewer::ScriptOptions)
-- 
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