267 lines
8.1 KiB
C++
267 lines
8.1 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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#include "nsNativeTheme.h"
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#include "nsIDocument.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "nsIEventStateManager.h"
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#include "nsString.h"
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#include "nsINameSpaceManager.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsILookAndFeel.h"
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#include "nsThemeConstants.h"
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#include "nsIComponentManager.h"
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nsNativeTheme::nsNativeTheme()
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{
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}
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nsIPresShell *
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nsNativeTheme::GetPresShell(nsIFrame* aFrame)
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{
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if (!aFrame)
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return nsnull;
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// this is a workaround for the egcs 1.1.2 not inliningg
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// aFrame->GetPresContext(), which causes an undefined symbol
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nsPresContext *context = aFrame->GetStyleContext()->GetRuleNode()->GetPresContext();
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return context ? context->GetPresShell() : nsnull;
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}
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PRInt32
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nsNativeTheme::GetContentState(nsIFrame* aFrame, PRUint8 aWidgetType)
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{
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if (!aFrame)
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return 0;
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PRBool isXULCheckboxRadio =
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(aWidgetType == NS_THEME_CHECKBOX ||
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aWidgetType == NS_THEME_CHECKBOX_SMALL ||
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aWidgetType == NS_THEME_RADIO ||
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aWidgetType == NS_THEME_RADIO_SMALL) &&
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aFrame->GetContent()->IsNodeOfType(nsINode::eXUL);
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if (isXULCheckboxRadio)
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aFrame = aFrame->GetParent();
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nsIPresShell *shell = GetPresShell(aFrame);
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if (!shell)
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return 0;
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PRInt32 flags = 0;
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shell->GetPresContext()->EventStateManager()->GetContentState(aFrame->GetContent(), flags);
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if (isXULCheckboxRadio && (aWidgetType == NS_THEME_RADIO || aWidgetType == NS_THEME_RADIO_SMALL)) {
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if (IsFocused(aFrame))
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flags |= NS_EVENT_STATE_FOCUS;
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}
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return flags;
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}
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PRBool
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nsNativeTheme::CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom)
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{
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if (!aFrame)
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return PR_FALSE;
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nsIContent* content = aFrame->GetContent();
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if (content->IsNodeOfType(nsINode::eHTML))
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return content->HasAttr(kNameSpaceID_None, aAtom);
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// For XML/XUL elements, an attribute must be equal to the literal
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// string "true" to be counted as true. An empty string should _not_
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// be counted as true.
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return content->AttrValueIs(kNameSpaceID_None, aAtom,
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NS_LITERAL_STRING("true"), eCaseMatters);
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}
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PRInt32
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nsNativeTheme::CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom)
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{
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if (!aFrame)
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return 0;
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nsAutoString attr;
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aFrame->GetContent()->GetAttr(kNameSpaceID_None, aAtom, attr);
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PRInt32 err, value = attr.ToInteger(&err);
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if (NS_FAILED(err))
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return 0;
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return value;
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}
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PRBool
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nsNativeTheme::GetCheckedOrSelected(nsIFrame* aFrame, PRBool aCheckSelected)
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{
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if (!aFrame)
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return PR_FALSE;
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nsIContent* content = aFrame->GetContent();
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if (content->IsNodeOfType(nsINode::eXUL)) {
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// For a XUL checkbox or radio button, the state of the parent determines
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// the checked state
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aFrame = aFrame->GetParent();
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} else {
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// Check for an HTML input element
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nsCOMPtr<nsIDOMHTMLInputElement> inputElt = do_QueryInterface(content);
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if (inputElt) {
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PRBool checked;
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inputElt->GetChecked(&checked);
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return checked;
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}
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}
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return CheckBooleanAttr(aFrame, aCheckSelected ? nsWidgetAtoms::selected
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: nsWidgetAtoms::checked);
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}
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PRBool
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nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
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PRUint8 aWidgetType)
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{
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// Check for specific widgets to see if HTML has overridden the style.
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return aFrame &&
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(aWidgetType == NS_THEME_BUTTON ||
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aWidgetType == NS_THEME_TEXTFIELD ||
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aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
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aWidgetType == NS_THEME_LISTBOX ||
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aWidgetType == NS_THEME_DROPDOWN) &&
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aFrame->GetContent()->IsNodeOfType(nsINode::eHTML) &&
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aPresContext->HasAuthorSpecifiedBorderOrBackground(aFrame);
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}
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// scrollbar button:
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PRInt32
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nsNativeTheme::GetScrollbarButtonType(nsIFrame* aFrame)
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{
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if (!aFrame)
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return 0;
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static nsIContent::AttrValuesArray strings[] =
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{&nsWidgetAtoms::scrollbarDownBottom, &nsWidgetAtoms::scrollbarDownTop,
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&nsWidgetAtoms::scrollbarUpBottom, &nsWidgetAtoms::scrollbarUpTop,
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nsnull};
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switch (aFrame->GetContent()->FindAttrValueIn(kNameSpaceID_None,
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nsWidgetAtoms::sbattr,
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strings, eCaseMatters)) {
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case 0: return eScrollbarButton_Down | eScrollbarButton_Bottom;
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case 1: return eScrollbarButton_Down;
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case 2: return eScrollbarButton_Bottom;
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case 3: return eScrollbarButton_UpTop;
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}
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return 0;
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}
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// treeheadercell:
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nsNativeTheme::TreeSortDirection
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nsNativeTheme::GetTreeSortDirection(nsIFrame* aFrame)
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{
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if (!aFrame)
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return eTreeSortDirection_Natural;
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static nsIContent::AttrValuesArray strings[] =
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{&nsWidgetAtoms::descending, &nsWidgetAtoms::ascending, nsnull};
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switch (aFrame->GetContent()->FindAttrValueIn(kNameSpaceID_None,
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nsWidgetAtoms::sortdirection,
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strings, eCaseMatters)) {
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case 0: return eTreeSortDirection_Descending;
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case 1: return eTreeSortDirection_Ascending;
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}
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return eTreeSortDirection_Natural;
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}
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// tab:
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PRBool
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nsNativeTheme::IsBottomTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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nsAutoString classStr;
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aFrame->GetContent()->GetAttr(kNameSpaceID_None, nsWidgetAtoms::_class, classStr);
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return !classStr.IsEmpty() && classStr.Find("tab-bottom") != kNotFound;
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}
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PRBool
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nsNativeTheme::IsFirstTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->HasAttr(kNameSpaceID_None, nsWidgetAtoms::firsttab);
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}
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PRBool
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nsNativeTheme::IsLastTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->HasAttr(kNameSpaceID_None, nsWidgetAtoms::lasttab);
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}
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PRBool
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nsNativeTheme::IsHorizontal(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return !aFrame->GetContent()->AttrValueIs(kNameSpaceID_None, nsWidgetAtoms::orient,
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nsWidgetAtoms::vertical,
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eCaseMatters);
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}
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// progressbar:
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PRBool
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nsNativeTheme::IsIndeterminateProgress(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->AttrValueIs(kNameSpaceID_None, nsWidgetAtoms::mode,
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NS_LITERAL_STRING("undetermined"),
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eCaseMatters);
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}
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