ginebra2/PageSnippet.h
changeset 3 0954f5dd2cd0
child 12 afcd8e6d025b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ginebra2/PageSnippet.h	Tue Jun 29 00:46:29 2010 -0400
@@ -0,0 +1,93 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, version 2.1 of the License.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this program.  If not,
+* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
+*
+* Description:
+*
+*/
+
+#ifndef PAGESNIPPET_H_
+#define PAGESNIPPET_H_
+
+#include "ChromeSnippet.h"
+
+class QGraphicsWebView;
+
+namespace GVA {
+
+class PageItem;
+class ExternalEventCharm;
+
+/*! \ingroup JavascriptAPI
+ * \brief This class provides a snippet that contains a QWebView.
+ *
+ * This class provides a snippet that contains a QWebView, allowing entire web pages to loaded
+ * and displayed in the chrome.  Note that this snippet has no real physical representation in the
+ * chrome page (chrome.html), ie. the DIV that defines it is empty.  Use the \ref url and
+ * \ref html properties to set the contents of the page.
+ *
+ * Note: use these snippets sparingly since they use a significant amount of memory when
+ * instantiated!  If possible, share them and/or de-instantiate them whenever possible by calling
+ * \ref cleanUp.
+ * \sa PageItem
+ */
+class PageSnippet : public ChromeSnippet {
+  Q_OBJECT
+public:
+  PageSnippet(const QString & elementId, ChromeWidget * chrome,
+              QGraphicsWidget * widget, const QWebElement & element);
+  ~PageSnippet();
+
+  static PageSnippet * instance(const QString& elementId, ChromeWidget * chrome, const QWebElement & element);
+
+  // ChromeSnippet overrides:
+  virtual void setVisible(bool visiblity, bool animate = true);
+  virtual void setChromeWidget(QGraphicsWidget * widget);
+
+  /// The URL of the web page.
+  QString url() const;
+  void setUrl(const QString &url);
+  Q_PROPERTY(QString url READ url WRITE setUrl)
+
+  /// The contents of the web page in HTML.
+  void setHtml(const QString &value);
+  QString html() const;
+  Q_PROPERTY(QString html WRITE setHtml READ html)
+
+public slots:
+  void setGeometry(int x, int y, int width, int height);
+  void setSize(int width, int height);
+
+  /// Evaluates a JavaScript expression in the context of the web page (not the chrome's context!).
+  QVariant evaluateJavaScript(const QString &expression);
+
+  /// Instantiates the web view, web page, etc.  This is called automatically when the
+  /// window is shown.
+  void instantiate();
+
+  /// Destroys the web view, web page, etc. to free up memory.
+  void cleanUp();
+
+private:
+  PageItem *pageItem();
+  PageItem const *constPageItem() const;
+
+  ExternalEventCharm *m_externalEventCharm;
+};
+
+}
+
+#endif /* PAGESNIPPET_H_ */