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/*
* Copyright (c) 2008, 2009, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 PopupMenuChromium_h
#define PopupMenuChromium_h
#include "config.h"
#include "FramelessScrollView.h"
#include "IntRect.h"
#include "PlatformString.h"
#include "PopupMenu.h"
#include "PopupMenuPrivate.h"
#include "PopupMenuStyle.h"
namespace WebCore {
class ChromeClientChromium;
class FrameView;
class PopupListBox;
class PopupMenuClient;
// A container for the data for each menu item (e.g. represented by <option>
// or <optgroup> in a <select> widget) and is used by PopupListBox.
struct PopupItem {
enum Type {
TypeOption,
TypeGroup,
TypeSeparator
};
PopupItem(const String& label, Type type)
: label(label)
, type(type)
, yOffset(0)
{
}
String label;
Type type;
int yOffset; // y offset of this item, relative to the top of the popup.
TextDirection textDirection;
bool hasTextDirectionOverride;
bool enabled;
};
// FIXME: Our FramelessScrollView classes should probably implement HostWindow!
// The PopupContainer class holds a PopupListBox (see cpp file). Its sole purpose is to be
// able to draw a border around its child. All its paint/event handling is
// just forwarded to the child listBox (with the appropriate transforms).
// NOTE: this class is exposed so it can be instantiated direcly for the
// autofill popup. We cannot use the Popup class directly in that case as the
// autofill popup should not be focused when shown and we want to forward the
// key events to it (through handleKeyEvent).
struct PopupContainerSettings {
// Whether the PopupMenuClient should be told to change its text when a
// new item is selected by using the arrow keys.
bool setTextOnIndexChange;
// Whether the selection should be accepted when the popup menu is
// closed (through ESC being pressed or the focus going away).
// Note that when TAB is pressed, the selection is always accepted
// regardless of this setting.
bool acceptOnAbandon;
// Whether we should move the selection to the first/last item when
// the user presses down/up arrow keys and the last/first item is
// selected.
bool loopSelectionNavigation;
// Whether we should restrict the width of the PopupListBox or not.
// Autocomplete popups are restricted, combo-boxes (select tags) aren't.
bool restrictWidthOfListBox;
};
class PopupContainer : public FramelessScrollView {
public:
enum PopupType {
Select, // HTML select popup.
Suggestion, // Autocomplete/autofill popup.
};
static PassRefPtr<PopupContainer> create(PopupMenuClient*, PopupType,
const PopupContainerSettings&);
// Whether a key event should be sent to this popup.
virtual bool isInterestedInEventForKey(int keyCode);
// FramelessScrollView
virtual void paint(GraphicsContext*, const IntRect&);
virtual void hide();
virtual bool handleMouseDownEvent(const PlatformMouseEvent&);
virtual bool handleMouseMoveEvent(const PlatformMouseEvent&);
virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&);
virtual bool handleWheelEvent(const PlatformWheelEvent&);
virtual bool handleKeyEvent(const PlatformKeyboardEvent&);
// PopupContainer methods
// Show the popup
void showPopup(FrameView*);
// Show the popup in the specified rect for the specified frame.
// Note: this code was somehow arbitrarily factored-out of the Popup class
// so WebViewImpl can create a PopupContainer. This method is used for
// displaying auto complete popup menus on Mac Chromium, and for all
// popups on other platforms.
void showInRect(const IntRect&, FrameView*, int index);
// Hides the popup.
void hidePopup();
// The popup was hidden.
void notifyPopupHidden();
// Compute size of widget and children. Return right offset for RTL.
int layoutAndGetRightOffset();
PopupListBox* listBox() const { return m_listBox.get(); }
// Gets the index of the item that the user is currently moused-over or
// has selected with the keyboard up/down arrows.
int selectedIndex() const;
// Refresh the popup values from the PopupMenuClient.
void refresh(const IntRect& targetControlRect);
// The menu per-item data.
const WTF::Vector<PopupItem*>& popupData() const;
// The height of a row in the menu.
int menuItemHeight() const;
// The size of the font being used.
int menuItemFontSize() const;
// The style of the menu being used.
PopupMenuStyle menuStyle() const;
PopupType popupType() const { return m_popupType; }
private:
friend class WTF::RefCounted<PopupContainer>;
PopupContainer(PopupMenuClient*, PopupType popupType, const PopupContainerSettings&);
~PopupContainer();
// Paint the border.
void paintBorder(GraphicsContext*, const IntRect&);
// Layout and calculate popup widget size and location and returns it as IntRect.
IntRect layoutAndCalculateWidgetRect(int targetControlHeight, const IntPoint& popupInitialCoordinate);
// Returns the ChromeClient of the page this popup is associated with.
ChromeClientChromium* chromeClientChromium();
RefPtr<PopupListBox> m_listBox;
RefPtr<FrameView> m_frameView;
PopupContainerSettings m_settings;
PopupType m_popupType;
// Whether the popup is currently open.
bool m_popupOpen;
};
class PopupMenuChromium : public PopupMenu {
public:
PopupMenuChromium(PopupMenuClient*);
~PopupMenuChromium();
virtual void show(const IntRect&, FrameView*, int index);
virtual void hide();
virtual void updateFromElement();
virtual void disconnectClient();
private:
PopupMenuClient* client() const { return m_popupClient; }
PopupMenuClient* m_popupClient;
PopupMenuPrivate p;
};
} // namespace WebCore
#endif
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