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