gecko/widget/xpwidgets/nsNativeTheme.h

203 lines
6.3 KiB
C
Raw Normal View History

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brian Ryner <bryner@brianryner.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// This defines a common base class for nsITheme implementations, to reduce
// code duplication.
#include "prtypes.h"
#include "nsAlgorithm.h"
#include "nsIAtom.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsMargin.h"
#include "nsGkAtoms.h"
#include "nsEventStates.h"
#include "nsTArray.h"
#include "nsITimer.h"
class nsIContent;
class nsIFrame;
class nsIPresShell;
class nsPresContext;
class nsNativeTheme : public nsITimerCallback
{
protected:
NS_DECL_ISUPPORTS
NS_DECL_NSITIMERCALLBACK
enum ScrollbarButtonType {
eScrollbarButton_UpTop = 0,
eScrollbarButton_Down = 1 << 0,
eScrollbarButton_Bottom = 1 << 1
};
enum TreeSortDirection {
eTreeSortDirection_Descending,
eTreeSortDirection_Natural,
eTreeSortDirection_Ascending
};
nsNativeTheme();
// Returns the content state (hover, focus, etc), see nsEventStateManager.h
nsEventStates GetContentState(nsIFrame* aFrame, PRUint8 aWidgetType);
// Returns whether the widget is already styled by content
// Normally called from ThemeSupportsWidget to turn off native theming
// for elements that are already styled.
bool IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
PRUint8 aWidgetType);
// Accessors to widget-specific state information
bool IsDisabled(nsIFrame* aFrame, nsEventStates aEventStates);
// RTL chrome direction
bool IsFrameRTL(nsIFrame* aFrame);
// button:
bool IsDefaultButton(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::_default);
}
bool IsButtonTypeMenu(nsIFrame* aFrame);
// checkbox:
bool IsChecked(nsIFrame* aFrame) {
return GetCheckedOrSelected(aFrame, false);
}
// radiobutton:
bool IsSelected(nsIFrame* aFrame) {
return GetCheckedOrSelected(aFrame, true);
}
bool IsFocused(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::focused);
}
// scrollbar button:
PRInt32 GetScrollbarButtonType(nsIFrame* aFrame);
// tab:
bool IsSelectedTab(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::selected);
}
bool IsNextToSelectedTab(nsIFrame* aFrame, PRInt32 aOffset);
bool IsBeforeSelectedTab(nsIFrame* aFrame) {
return IsNextToSelectedTab(aFrame, -1);
}
bool IsAfterSelectedTab(nsIFrame* aFrame) {
return IsNextToSelectedTab(aFrame, 1);
}
bool IsLeftToSelectedTab(nsIFrame* aFrame) {
return IsFrameRTL(aFrame) ? IsAfterSelectedTab(aFrame) : IsBeforeSelectedTab(aFrame);
}
bool IsRightToSelectedTab(nsIFrame* aFrame) {
return IsFrameRTL(aFrame) ? IsBeforeSelectedTab(aFrame) : IsAfterSelectedTab(aFrame);
}
// button / toolbarbutton:
bool IsCheckedButton(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::checked);
}
bool IsSelectedButton(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::checked) ||
CheckBooleanAttr(aFrame, nsGkAtoms::selected);
}
bool IsOpenButton(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::open);
}
bool IsPressedButton(nsIFrame* aFrame);
// treeheadercell:
TreeSortDirection GetTreeSortDirection(nsIFrame* aFrame);
bool IsLastTreeHeaderCell(nsIFrame* aFrame);
// tab:
bool IsBottomTab(nsIFrame* aFrame);
bool IsFirstTab(nsIFrame* aFrame);
bool IsHorizontal(nsIFrame* aFrame);
// progressbar:
bool IsIndeterminateProgress(nsIFrame* aFrame, nsEventStates aEventStates);
bool IsVerticalProgress(nsIFrame* aFrame);
// textfield:
bool IsReadOnly(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::readonly);
}
// menupopup:
bool IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent);
// True if it's not a menubar item or menulist item
bool IsRegularMenuItem(nsIFrame *aFrame);
bool IsMenuListEditable(nsIFrame *aFrame);
nsIPresShell *GetPresShell(nsIFrame* aFrame);
PRInt32 CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, PRInt32 defaultValue);
bool CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom);
bool GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected);
bool GetIndeterminate(nsIFrame* aFrame);
bool QueueAnimatedContentForRefresh(nsIContent* aContent,
PRUint32 aMinimumFrameRate);
nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame,
bool aNextSibling);
private:
PRUint32 mAnimatedContentTimeout;
nsCOMPtr<nsITimer> mAnimatedContentTimer;
nsAutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList;
};