forked from mirrors/gecko-dev
5ba9439c07
area, and not the padding area as per the CSS 2 Errata, CSS2.1 and CSS3. Also, implementing the CSS3 'background-clip' and 'background-origin' properties (currently with -moz- prefixes) to control this behavior. Bug 162252, r=dbaron sr=roc+moz
380 lines
11 KiB
C++
380 lines
11 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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 Communicator client 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) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsButtonFrameRenderer.h"
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#include "nsIRenderingContext.h"
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#include "nsCSSRendering.h"
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#include "nsIPresContext.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsHTMLAtoms.h"
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#include "nsINameSpaceManager.h"
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#define ACTIVE "active"
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#define HOVER "hover"
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#define FOCUS "focus"
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MOZ_DECL_CTOR_COUNTER(nsButtonFrameRenderer)
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nsButtonFrameRenderer::nsButtonFrameRenderer()
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{
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MOZ_COUNT_CTOR(nsButtonFrameRenderer);
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}
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nsButtonFrameRenderer::~nsButtonFrameRenderer()
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{
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MOZ_COUNT_DTOR(nsButtonFrameRenderer);
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}
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void
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nsButtonFrameRenderer::SetFrame(nsFrame* aFrame, nsIPresContext* aPresContext)
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{
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mFrame = aFrame;
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ReResolveStyles(aPresContext);
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}
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nsIFrame*
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nsButtonFrameRenderer::GetFrame()
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{
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return mFrame;
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}
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void
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nsButtonFrameRenderer::SetDisabled(PRBool aDisabled, PRBool notify)
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{
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// get the content
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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if (aDisabled)
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content->SetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, nsString(),
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notify);
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else
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content->UnsetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, notify);
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}
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PRBool
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nsButtonFrameRenderer::isDisabled()
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{
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// get the content
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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nsAutoString value;
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if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, value))
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return PR_TRUE;
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return PR_FALSE;
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}
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void
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nsButtonFrameRenderer::Redraw(nsIPresContext* aPresContext)
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{
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nsRect rect;
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mFrame->GetRect(rect);
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rect.x = 0;
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rect.y = 0;
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mFrame->Invalidate(aPresContext, rect, PR_FALSE);
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}
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void
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nsButtonFrameRenderer::PaintButton (nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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const nsRect& aRect)
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{
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//printf("painted width='%d' height='%d'\n",aRect.width, aRect.height);
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// draw the border and background inside the focus and outline borders
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PaintBorderAndBackground(aPresContext, aRenderingContext, aDirtyRect, aRect);
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// draw the focus and outline borders
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PaintOutlineAndFocusBorders(aPresContext, aRenderingContext, aDirtyRect, aRect);
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}
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void
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nsButtonFrameRenderer::PaintOutlineAndFocusBorders(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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const nsRect& aRect)
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{
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// once we have all that let draw the focus if we have it. We will need to draw 2 focuses.
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// the inner and the outer. This is so we can do any kind of look and feel some buttons have
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// focus on the outside like mac and motif. While others like windows have it inside (dotted line).
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// Usually only one will be specifed. But I guess you could have both if you wanted to.
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nsRect rect;
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if (mOuterFocusStyle) {
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// ---------- paint the outer focus border -------------
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GetButtonOuterFocusRect(aRect, rect);
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const nsStyleBorder* border;
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::GetStyleData(NS_STATIC_CAST(nsIStyleContext*,mOuterFocusStyle), &border);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, rect, *border, mOuterFocusStyle, 0);
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}
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if (mInnerFocusStyle) {
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// ---------- paint the inner focus border -------------
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GetButtonInnerFocusRect(aRect, rect);
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const nsStyleBorder* border;
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::GetStyleData(NS_STATIC_CAST(nsIStyleContext*,mInnerFocusStyle), &border);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, rect, *border, mInnerFocusStyle, 0);
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}
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}
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void
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nsButtonFrameRenderer::PaintBorderAndBackground(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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const nsRect& aRect)
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{
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// get the button rect this is inside the focus and outline rects
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nsRect buttonRect;
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GetButtonRect(aRect, buttonRect);
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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const nsStyleBorder* border =
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(const nsStyleBorder*)context->GetStyleData(eStyleStruct_Border);
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const nsStylePadding* padding =
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(const nsStylePadding*)context->GetStyleData(eStyleStruct_Padding);
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, buttonRect, *border, *padding,
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0, 0);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, buttonRect, *border, context, 0);
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}
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void
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nsButtonFrameRenderer::GetButtonOutlineRect(const nsRect& aRect, nsRect& outlineRect)
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{
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outlineRect = aRect;
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outlineRect.Inflate(GetButtonOutlineBorderAndPadding());
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}
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void
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nsButtonFrameRenderer::GetButtonOuterFocusRect(const nsRect& aRect, nsRect& focusRect)
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{
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focusRect = aRect;
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}
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void
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nsButtonFrameRenderer::GetButtonRect(const nsRect& aRect, nsRect& r)
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{
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r = aRect;
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r.Deflate(GetButtonOuterFocusBorderAndPadding());
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}
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void
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nsButtonFrameRenderer::GetButtonInnerFocusRect(const nsRect& aRect, nsRect& focusRect)
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{
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GetButtonRect(aRect, focusRect);
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focusRect.Deflate(GetButtonBorderAndPadding());
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focusRect.Deflate(GetButtonInnerFocusMargin());
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}
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void
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nsButtonFrameRenderer::GetButtonContentRect(const nsRect& aRect, nsRect& r)
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{
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GetButtonInnerFocusRect(aRect, r);
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r.Deflate(GetButtonInnerFocusBorderAndPadding());
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonOuterFocusBorderAndPadding()
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{
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nsMargin focusBorderAndPadding(0,0,0,0);
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if (mOuterFocusStyle) {
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nsStyleBorderPadding bPad;
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mOuterFocusStyle->GetBorderPaddingFor(bPad);
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if (!bPad.GetBorderPadding(focusBorderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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}
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return focusBorderAndPadding;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonBorderAndPadding()
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{
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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nsMargin innerFocusBorderAndPadding(0,0,0,0);
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nsStyleBorderPadding bPad;
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context->GetBorderPaddingFor(bPad);
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if (!bPad.GetBorderPadding(innerFocusBorderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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return innerFocusBorderAndPadding;
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}
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/**
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* Gets the size of the buttons border this is the union of the normal and disabled borders.
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*/
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nsMargin
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nsButtonFrameRenderer::GetButtonInnerFocusMargin()
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{
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nsMargin innerFocusMargin(0,0,0,0);
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if (mInnerFocusStyle) {
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// get the outer focus border and padding
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const nsStyleMargin* margin = (const nsStyleMargin*)mInnerFocusStyle ->GetStyleData(eStyleStruct_Margin);
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margin->GetMargin(innerFocusMargin);
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}
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return innerFocusMargin;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonInnerFocusBorderAndPadding()
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{
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nsMargin innerFocusBorderAndPadding(0,0,0,0);
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if (mInnerFocusStyle) {
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// get the outer focus border and padding
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nsStyleBorderPadding bPad;
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mInnerFocusStyle->GetBorderPaddingFor(bPad);
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if (!bPad.GetBorderPadding(innerFocusBorderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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}
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return innerFocusBorderAndPadding;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonOutlineBorderAndPadding()
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{
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nsMargin borderAndPadding(0,0,0,0);
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return borderAndPadding;
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}
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// gets the full size of our border with all the focus borders
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nsMargin
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nsButtonFrameRenderer::GetFullButtonBorderAndPadding()
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{
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return GetAddedButtonBorderAndPadding() + GetButtonBorderAndPadding();
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}
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// gets all the focus borders and padding that will be added to the regular border
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nsMargin
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nsButtonFrameRenderer::GetAddedButtonBorderAndPadding()
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{
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return GetButtonOuterFocusBorderAndPadding() + GetButtonInnerFocusMargin() + GetButtonInnerFocusBorderAndPadding();
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}
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/**
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* Call this when styles change
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*/
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void
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nsButtonFrameRenderer::ReResolveStyles(nsIPresContext* aPresContext)
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{
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// get all the styles
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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// style for the inner such as a dotted line (Windows)
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aPresContext->ProbePseudoStyleContextFor(content, nsHTMLAtoms::mozFocusInnerPseudo, context,
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getter_AddRefs(mInnerFocusStyle));
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// style for outer focus like a ridged border (MAC).
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aPresContext->ProbePseudoStyleContextFor(content, nsHTMLAtoms::mozFocusOuterPseudo, context,
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getter_AddRefs(mOuterFocusStyle));
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}
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nsresult
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nsButtonFrameRenderer::GetStyleContext(PRInt32 aIndex, nsIStyleContext** aStyleContext) const
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{
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NS_PRECONDITION(nsnull != aStyleContext, "null OUT parameter pointer");
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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*aStyleContext = nsnull;
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switch (aIndex) {
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case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
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*aStyleContext = mInnerFocusStyle;
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NS_IF_ADDREF(*aStyleContext);
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break;
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case NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX:
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*aStyleContext = mOuterFocusStyle;
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NS_IF_ADDREF(*aStyleContext);
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break;
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default:
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return NS_ERROR_INVALID_ARG;
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}
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return NS_OK;
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}
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nsresult
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nsButtonFrameRenderer::SetStyleContext(PRInt32 aIndex, nsIStyleContext* aStyleContext)
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{
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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switch (aIndex) {
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case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
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mInnerFocusStyle = aStyleContext;
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break;
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case NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX:
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mOuterFocusStyle = aStyleContext;
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break;
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}
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return NS_OK;
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}
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