--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/Widget.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (C) 2008 Collabora Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef Widget_h
+#define Widget_h
+
+#if PLATFORM(MAC)
+#ifdef __OBJC__
+@class NSView;
+@class NSWindow;
+#else
+class NSView;
+class NSWindow;
+#endif
+typedef NSView* PlatformWidget;
+#endif
+
+#if PLATFORM(WIN)
+typedef struct HWND__* HWND;
+typedef HWND PlatformWidget;
+#endif
+
+#if PLATFORM(GTK)
+typedef struct _GdkDrawable GdkDrawable;
+typedef struct _GtkWidget GtkWidget;
+typedef struct _GtkContainer GtkContainer;
+typedef GtkWidget* PlatformWidget;
+#endif
+
+#if PLATFORM(QT)
+#include <qglobal.h>
+QT_BEGIN_NAMESPACE
+class QWidget;
+QT_END_NAMESPACE
+typedef QWidget* PlatformWidget;
+#endif
+
+#if PLATFORM(WX)
+class wxWindow;
+typedef wxWindow* PlatformWidget;
+#endif
+
+#if PLATFORM(HAIKU)
+class BView;
+typedef BView* PlatformWidget;
+#endif
+
+#if PLATFORM(BREWMP)
+typedef void* PlatformWidget;
+#endif
+
+#if PLATFORM(CHROMIUM)
+#include "PlatformWidget.h"
+#endif
+
+#if PLATFORM(EFL)
+typedef struct _Evas_Object Evas_Object;
+typedef struct _Evas Evas;
+typedef struct _Ecore_Evas Ecore_Evas;
+typedef Evas_Object* PlatformWidget;
+#endif
+
+#if PLATFORM(QT)
+class QWebPageClient;
+typedef QWebPageClient* PlatformPageClient;
+#else
+typedef PlatformWidget PlatformPageClient;
+#endif
+
+#include "IntPoint.h"
+#include "IntRect.h"
+#include "IntSize.h"
+
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+
+class Cursor;
+class Event;
+class Font;
+class GraphicsContext;
+class PlatformMouseEvent;
+class ScrollView;
+class WidgetPrivate;
+#if PLATFORM(EFL)
+class String;
+#endif
+
+// The Widget class serves as a base class for three kinds of objects:
+// (1) Scrollable areas (ScrollView)
+// (2) Scrollbars (Scrollbar)
+// (3) Plugins (PluginView)
+//
+// A widget may or may not be backed by a platform-specific object (e.g., HWND on Windows, NSView on Mac, QWidget on Qt).
+//
+// Widgets are connected in a hierarchy, with the restriction that plugins and scrollbars are always leaves of the
+// tree. Only ScrollViews can have children (and therefore the Widget class has no concept of children).
+//
+// The rules right now for which widgets get platform-specific objects are as follows:
+// ScrollView - Mac
+// Scrollbar - Mac, Gtk
+// Plugin - Mac, Windows (windowed only), Qt (windowed only, widget is an HWND on windows), Gtk (windowed only)
+//
+class Widget : public RefCounted<Widget> {
+public:
+ Widget(PlatformWidget = 0);
+ virtual ~Widget();
+
+ PlatformWidget platformWidget() const { return m_widget; }
+ void setPlatformWidget(PlatformWidget widget)
+ {
+ if (widget != m_widget) {
+ releasePlatformWidget();
+ m_widget = widget;
+ retainPlatformWidget();
+ }
+ }
+#if PLATFORM(HAIKU)
+ PlatformWidget topLevelPlatformWidget() const { return m_topLevelPlatformWidget; }
+ void setTopLevelPlatformWidget(PlatformWidget widget)
+ {
+ m_topLevelPlatformWidget = widget;
+ }
+#endif
+
+ int x() const { return frameRect().x(); }
+ int y() const { return frameRect().y(); }
+ int width() const { return frameRect().width(); }
+ int height() const { return frameRect().height(); }
+ IntSize size() const { return frameRect().size(); }
+ IntPoint pos() const { return frameRect().location(); }
+
+ virtual void setFrameRect(const IntRect&);
+ virtual IntRect frameRect() const;
+ IntRect boundsRect() const { return IntRect(0, 0, width(), height()); }
+
+ void resize(int w, int h) { setFrameRect(IntRect(x(), y(), w, h)); }
+ void resize(const IntSize& s) { setFrameRect(IntRect(pos(), s)); }
+ void move(int x, int y) { setFrameRect(IntRect(x, y, width(), height())); }
+ void move(const IntPoint& p) { setFrameRect(IntRect(p, size())); }
+
+ virtual void paint(GraphicsContext*, const IntRect&);
+ void invalidate() { invalidateRect(boundsRect()); }
+ virtual void invalidateRect(const IntRect&) = 0;
+
+ virtual void setFocus(bool);
+
+ void setCursor(const Cursor&);
+
+ virtual void show();
+ virtual void hide();
+ bool isSelfVisible() const { return m_selfVisible; } // Whether or not we have been explicitly marked as visible or not.
+ bool isParentVisible() const { return m_parentVisible; } // Whether or not our parent is visible.
+ bool isVisible() const { return m_selfVisible && m_parentVisible; } // Whether or not we are actually visible.
+ virtual void setParentVisible(bool visible) { m_parentVisible = visible; }
+ void setSelfVisible(bool v) { m_selfVisible = v; }
+
+ void setIsSelected(bool);
+
+ virtual bool isFrameView() const { return false; }
+ virtual bool isPluginView() const { return false; }
+ // FIXME: The Mac plug-in code should inherit from PluginView. When this happens PluginViewBase and PluginView can become one class.
+ virtual bool isPluginViewBase() const { return false; }
+ virtual bool isScrollbar() const { return false; }
+
+ void removeFromParent();
+ virtual void setParent(ScrollView* view);
+ ScrollView* parent() const { return m_parent; }
+ ScrollView* root() const;
+
+ virtual void handleEvent(Event*) { }
+
+ // It is important for cross-platform code to realize that Mac has flipped coordinates. Therefore any code
+ // that tries to convert the location of a rect using the point-based convertFromContainingWindow will end
+ // up with an inaccurate rect. Always make sure to use the rect-based convertFromContainingWindow method
+ // when converting window rects.
+ IntRect convertToContainingWindow(const IntRect&) const;
+ IntRect convertFromContainingWindow(const IntRect&) const;
+
+ IntPoint convertToContainingWindow(const IntPoint&) const;
+ IntPoint convertFromContainingWindow(const IntPoint&) const;
+
+ virtual void frameRectsChanged();
+
+ // Notifies this widget that other widgets on the page have been repositioned.
+ virtual void widgetPositionsUpdated() {}
+
+#if PLATFORM(MAC)
+ NSView* getOuterView() const;
+
+ static void beforeMouseDown(NSView*, Widget*);
+ static void afterMouseDown(NSView*, Widget*);
+
+ void removeFromSuperview();
+#endif
+
+#if PLATFORM(EFL)
+ // FIXME: These should really go to PlatformWidget. They're here currently since
+ // the EFL port considers that Evas_Object (a C object) is a PlatformWidget, but
+ // encapsulating that into a C++ class will make this header clean as it should be.
+ Evas* evas() const;
+
+ void setEvasObject(Evas_Object*);
+ Evas_Object* evasObject() const;
+
+ const String edjeTheme() const;
+ void setEdjeTheme(const String &);
+ const String edjeThemeRecursive() const;
+#endif
+
+ // Virtual methods to convert points to/from the containing ScrollView
+ virtual IntRect convertToContainingView(const IntRect&) const;
+ virtual IntRect convertFromContainingView(const IntRect&) const;
+ virtual IntPoint convertToContainingView(const IntPoint&) const;
+ virtual IntPoint convertFromContainingView(const IntPoint&) const;
+
+private:
+ void init(PlatformWidget); // Must be called by all Widget constructors to initialize cross-platform data.
+
+ void releasePlatformWidget();
+ void retainPlatformWidget();
+
+ // These methods are used to convert from the root widget to the containing window,
+ // which has behavior that may differ between platforms (e.g. Mac uses flipped window coordinates).
+ static IntRect convertFromRootToContainingWindow(const Widget* rootWidget, const IntRect&);
+ static IntRect convertFromContainingWindowToRoot(const Widget* rootWidget, const IntRect&);
+
+ static IntPoint convertFromRootToContainingWindow(const Widget* rootWidget, const IntPoint&);
+ static IntPoint convertFromContainingWindowToRoot(const Widget* rootWidget, const IntPoint&);
+
+private:
+ ScrollView* m_parent;
+ PlatformWidget m_widget;
+ bool m_selfVisible;
+ bool m_parentVisible;
+
+ IntRect m_frame; // Not used when a native widget exists.
+
+#if PLATFORM(EFL)
+ // FIXME: Please see the previous #if PLATFORM(EFL) block.
+ Ecore_Evas* ecoreEvas() const;
+
+ void applyFallbackCursor();
+ void applyCursor();
+#endif
+
+#if PLATFORM(MAC) || PLATFORM(EFL)
+ WidgetPrivate* m_data;
+#endif
+
+#if PLATFORM(HAIKU)
+ PlatformWidget m_topLevelPlatformWidget;
+#endif
+};
+
+} // namespace WebCore
+
+#endif // Widget_h