WebCore/rendering/RenderFileUploadControl.h
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderFileUploadControl.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RenderFileUploadControl_h
+#define RenderFileUploadControl_h
+
+#include "FileChooser.h"
+#include "RenderBlock.h"
+
+namespace WebCore {
+
+class Chrome;
+class HTMLInputElement;
+    
+// Each RenderFileUploadControl contains a RenderButton (for opening the file chooser), and
+// sufficient space to draw a file icon and filename. The RenderButton has a shadow node
+// associated with it to receive click/hover events.
+
+class RenderFileUploadControl : public RenderBlock, private FileChooserClient {
+public:
+    RenderFileUploadControl(HTMLInputElement*);
+    virtual ~RenderFileUploadControl();
+
+    virtual bool isFileUploadControl() const { return true; }
+
+    void click();
+
+    void receiveDroppedFiles(const Vector<String>&);
+
+    String buttonValue();
+    String fileTextValue() const;
+    
+private:
+    virtual const char* renderName() const { return "RenderFileUploadControl"; }
+
+    virtual void updateFromElement();
+    virtual void calcPrefWidths();
+    virtual void paintObject(PaintInfo&, int tx, int ty);
+
+    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
+
+    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
+
+    // FileChooserClient methods.
+    void valueChanged();
+    void repaint() { RenderBlock::repaint(); }
+    bool allowsMultipleFiles();
+#if ENABLE(DIRECTORY_UPLOAD)
+    bool allowsDirectoryUpload();
+#endif
+    String acceptTypes();
+    void chooseIconForFiles(FileChooser*, const Vector<String>&);
+
+    Chrome* chrome() const;
+    int maxFilenameWidth() const;
+    PassRefPtr<RenderStyle> createButtonStyle(const RenderStyle* parentStyle) const;
+
+    RefPtr<HTMLInputElement> m_button;
+    RefPtr<FileChooser> m_fileChooser;
+};
+
+inline RenderFileUploadControl* toRenderFileUploadControl(RenderObject* object)
+{
+    ASSERT(!object || object->isFileUploadControl());
+    return static_cast<RenderFileUploadControl*>(object);
+}
+
+inline const RenderFileUploadControl* toRenderFileUploadControl(const RenderObject* object)
+{
+    ASSERT(!object || object->isFileUploadControl());
+    return static_cast<const RenderFileUploadControl*>(object);
+}
+
+// This will catch anyone doing an unnecessary cast.
+void toRenderFileUploadControl(const RenderFileUploadControl*);
+
+} // namespace WebCore
+
+#endif // RenderFileUploadControl_h