зеркало из https://github.com/mozilla/pjs.git
760 строки
24 KiB
C++
760 строки
24 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) 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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* Travis Bogard <travis@netscape.com>
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* Håkan Waara <hwaara@chello.se>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 "nsCOMPtr.h"
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#include "nsLeafFrame.h"
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#include "nsIHTMLContent.h"
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#include "nsIDocShell.h"
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#include "nsIDocShellLoadInfo.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIDocShellTreeNode.h"
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#include "nsIDocShellTreeOwner.h"
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#include "nsIBaseWindow.h"
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#include "nsIContentViewer.h"
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#include "nsIMarkupDocumentViewer.h"
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#include "nsIPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIComponentManager.h"
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#include "nsFrameManager.h"
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#include "nsIStreamListener.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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#include "nsIDocument.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsWidgetsCID.h"
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#include "nsViewsCID.h"
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#include "nsHTMLAtoms.h"
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#include "nsIScrollableView.h"
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#include "nsStyleCoord.h"
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#include "nsStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIDocumentLoader.h"
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#include "nsFrameSetFrame.h"
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#include "nsIDOMHTMLFrameElement.h"
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#include "nsIDOMHTMLIFrameElement.h"
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#include "nsIDOMXULElement.h"
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#include "nsIFrameLoader.h"
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#include "nsLayoutAtoms.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsXPIDLString.h"
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#include "nsIScrollable.h"
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#include "nsINameSpaceManager.h"
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#include "nsIPrintContext.h"
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#include "nsIPrintPreviewContext.h"
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#include "nsIWidget.h"
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#include "nsIWebBrowserPrint.h"
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#include "nsWeakReference.h"
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#include "nsIDOMWindow.h"
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#include "nsIDOMDocument.h"
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#include "nsIRenderingContext.h"
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#include "nsIFrameFrame.h"
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#include "nsAutoPtr.h"
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// For Accessibility
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#ifdef ACCESSIBILITY
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#include "nsIAccessibilityService.h"
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#endif
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#include "nsIServiceManager.h"
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static NS_DEFINE_CID(kCViewCID, NS_VIEW_CID);
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static NS_DEFINE_CID(kCChildCID, NS_CHILD_CID);
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/******************************************************************************
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* nsSubDocumentFrame
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*****************************************************************************/
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class nsSubDocumentFrame : public nsLeafFrame,
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public nsIFrameFrame
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{
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public:
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nsSubDocumentFrame();
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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#endif
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// nsISupports
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef(void) { return 2; }
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NS_IMETHOD_(nsrefcnt) Release(void) { return 1; }
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virtual nsIAtom* GetType() const;
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NS_IMETHOD Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsStyleContext* aContext,
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nsIFrame* aPrevInFlow);
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NS_IMETHOD Destroy(nsIPresContext* aPresContext);
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NS_IMETHOD Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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// if the content is "visibility:hidden", then just hide the view
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// and all our contents. We don't extend "visibility:hidden" to
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// the child content ourselves, since it belongs to a different
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// document and CSS doesn't inherit in there.
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virtual PRBool SupportsVisibilityHidden() { return PR_FALSE; }
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#ifdef ACCESSIBILITY
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NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
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#endif
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// nsIFrameFrame
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NS_IMETHOD GetDocShell(nsIDocShell **aDocShell);
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NS_IMETHOD VerifyTree() const;
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protected:
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nsSize GetMargin();
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PRBool IsInline() { return mIsInline; }
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nsresult ReloadURL();
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nsresult ShowDocShell();
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nsresult CreateViewAndWidget(nsContentType aContentType);
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virtual void GetDesiredSize(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize);
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virtual PRIntn GetSkipSides() const;
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nsCOMPtr<nsIFrameLoader> mFrameLoader;
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PRPackedBool mOwnsFrameLoader;
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PRPackedBool mIsInline;
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nsIView* mInnerView;
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};
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nsSubDocumentFrame::nsSubDocumentFrame()
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: nsLeafFrame(), mOwnsFrameLoader(PR_FALSE)
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{
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mIsInline = PR_FALSE;
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}
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#ifdef ACCESSIBILITY
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NS_IMETHODIMP nsSubDocumentFrame::GetAccessible(nsIAccessible** aAccessible)
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{
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nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
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if (accService) {
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nsCOMPtr<nsIDOMNode> node = do_QueryInterface(mContent);
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return accService->CreateOuterDocAccessible(node, aAccessible);
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}
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return NS_ERROR_FAILURE;
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}
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#endif
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//--------------------------------------------------------------
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// Frames are not refcounted, no need to AddRef
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NS_IMETHODIMP
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nsSubDocumentFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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NS_PRECONDITION(0 != aInstancePtr, "null ptr");
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(NS_GET_IID(nsIFrameFrame))) {
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nsISupports *tmp = NS_STATIC_CAST(nsIFrameFrame *, this);
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*aInstancePtr = tmp;
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return NS_OK;
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}
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return nsLeafFrame::QueryInterface(aIID, aInstancePtr);
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}
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NS_IMETHODIMP
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nsSubDocumentFrame::Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsStyleContext* aContext,
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nsIFrame* aPrevInFlow)
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{
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// determine if we are a <frame> or <iframe>
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if (aContent) {
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nsCOMPtr<nsIDOMHTMLFrameElement> frameElem = do_QueryInterface(aContent);
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mIsInline = frameElem ? PR_FALSE : PR_TRUE;
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}
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nsresult rv = nsLeafFrame::Init(aPresContext, aContent, aParent,
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aContext, aPrevInFlow);
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if (NS_FAILED(rv))
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return rv;
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// We are going to create an inner view. If we need a view for the
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// OuterFrame but we wait for the normal view creation path in
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// nsCSSFrameConstructor, then we will lose because the inner view's
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// parent will already have been set to some outer view (e.g., the
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// canvas) when it really needs to have this frame's view as its
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// parent. So, create this frame's view right away, whether we
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// really need it or not, and the inner view will get it as the
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// parent.
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if (!HasView()) {
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// To properly initialize the view we need to know the frame for the content
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// that is the parent of content for this frame. This might not be our actual
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// frame parent if we are out of flow (e.g., positioned) so our parent frame
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// may have been set to some other ancestor.
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// We look for a content parent frame in the frame property list, where it
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// will have been set by nsCSSFrameConstructor if necessary.
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nsCOMPtr<nsIAtom> contentParentAtom = do_GetAtom("contentParent");
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nsIFrame* contentParent = nsnull;
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void *value =
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aPresContext->FrameManager()->GetFrameProperty(this, contentParentAtom,
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NS_IFRAME_MGR_REMOVE_PROP,
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&rv);
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if (NS_SUCCEEDED(rv)) {
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contentParent = (nsIFrame*)value;
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}
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nsHTMLContainerFrame::CreateViewForFrame(this, contentParent, PR_TRUE);
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}
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nsIView* view = GetView();
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NS_ASSERTION(view, "We should always have a view now");
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if (aParent->GetStyleDisplay()->mDisplay == NS_STYLE_DISPLAY_DECK
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&& !view->HasWidget()) {
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view->CreateWidget(kCChildCID);
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}
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// determine if we are a printcontext
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PRBool shouldCreateDoc = PR_TRUE;
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nsCOMPtr<nsIPrintContext> thePrinterContext(do_QueryInterface(aPresContext));
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if (thePrinterContext) {
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// we are printing
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shouldCreateDoc = PR_FALSE;
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}
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// for print preview we want to create the view and widget but
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// we do not want to load the document, it is alerady loaded.
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nsCOMPtr<nsIPrintPreviewContext> thePrintPreviewContext =
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do_QueryInterface(aPresContext);
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if (thePrintPreviewContext) {
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rv = CreateViewAndWidget(eContentTypeContent);
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NS_ENSURE_SUCCESS(rv,rv);
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// we are in PrintPreview
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shouldCreateDoc = PR_FALSE;
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}
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if (shouldCreateDoc) {
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rv = ShowDocShell();
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NS_ENSURE_SUCCESS(rv,rv);
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}
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return NS_OK;
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}
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PRIntn
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nsSubDocumentFrame::GetSkipSides() const
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{
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return 0;
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}
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void
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nsSubDocumentFrame::GetDesiredSize(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize)
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{
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// <frame> processing does not use this routine, only <iframe>
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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// If no width/height was specified, use 300/150.
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// This is for compatability with IE.
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if (NS_UNCONSTRAINEDSIZE != aReflowState.mComputedWidth) {
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aDesiredSize.width = aReflowState.mComputedWidth;
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}
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else {
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aDesiredSize.width = PR_MIN(PR_MAX(NSIntPixelsToTwips(300, p2t),
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aReflowState.mComputedMinWidth),
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aReflowState.mComputedMaxWidth);
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}
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if (NS_UNCONSTRAINEDSIZE != aReflowState.mComputedHeight) {
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aDesiredSize.height = aReflowState.mComputedHeight;
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}
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else {
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aDesiredSize.height = PR_MIN(PR_MAX(NSIntPixelsToTwips(150, p2t),
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aReflowState.mComputedMinHeight),
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aReflowState.mComputedMaxHeight);
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}
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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}
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#ifdef DEBUG
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NS_IMETHODIMP nsSubDocumentFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("FrameOuter"), aResult);
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}
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#endif
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nsIAtom*
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nsSubDocumentFrame::GetType() const
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{
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return nsLayoutAtoms::subDocumentFrame;
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}
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NS_IMETHODIMP
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nsSubDocumentFrame::Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsSubDocumentFrame", aReflowState.reason);
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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// printf("OuterFrame::Reflow %X (%d,%d) \n", this, aReflowState.availableWidth, aReflowState.availableHeight);
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NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
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("enter nsSubDocumentFrame::Reflow: maxSize=%d,%d reason=%d",
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aReflowState.availableWidth, aReflowState.availableHeight, aReflowState.reason));
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aStatus = NS_FRAME_COMPLETE;
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if (IsInline()) {
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GetDesiredSize(aPresContext, aReflowState, aDesiredSize); // IFRAME
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} else {
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aDesiredSize.width = aReflowState.availableWidth; // FRAME
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aDesiredSize.height = aReflowState.availableHeight;
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}
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nsSize innerSize(aDesiredSize.width, aDesiredSize.height);
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nsPoint offset(0, 0);
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nsMargin border = aReflowState.mComputedBorderPadding;
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if (IsInline()) {
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offset = nsPoint(border.left, border.top);
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aDesiredSize.width += border.left + border.right;
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aDesiredSize.height += border.top + border.bottom;
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}
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// might not have an inner view yet during printing
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if (mInnerView) {
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nsIViewManager* vm = mInnerView->GetViewManager();
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vm->MoveViewTo(mInnerView, offset.x, offset.y);
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vm->ResizeView(mInnerView, nsRect(0, 0, innerSize.width, innerSize.height), PR_TRUE);
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}
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if (aDesiredSize.mComputeMEW) {
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// If our width is set by style to some fixed length,
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// then our actual width is our minimum width
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nsStyleUnit widthUnit = GetStylePosition()->mWidth.GetUnit();
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if (widthUnit != eStyleUnit_Percent && widthUnit != eStyleUnit_Auto) {
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aDesiredSize.mMaxElementWidth = aDesiredSize.width;
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} else {
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// if our width is auto or a percentage, then we can shrink until
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// there's nothing left but our borders
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aDesiredSize.mMaxElementWidth = border.left + border.right;
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}
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}
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// Determine if we need to repaint our border, background or outline
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CheckInvalidateSizeChange(aPresContext, aDesiredSize, aReflowState);
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// Invalidate the frame contents
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nsRect rect(nsPoint(0, 0), GetSize());
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Invalidate(rect, PR_FALSE);
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if (!aPresContext->IsPaginated()) {
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nsCOMPtr<nsIDocShell> docShell;
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GetDocShell(getter_AddRefs(docShell));
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nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));
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// resize the sub document
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if (baseWindow) {
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float t2p;
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t2p = aPresContext->TwipsToPixels();
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PRInt32 x = 0;
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PRInt32 y = 0;
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baseWindow->GetPositionAndSize(&x, &y, nsnull, nsnull);
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PRInt32 cx = NSToCoordRound(innerSize.width * t2p);
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PRInt32 cy = NSToCoordRound(innerSize.height * t2p);
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baseWindow->SetPositionAndSize(x, y, cx, cy, PR_FALSE);
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}
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}
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// printf("OuterFrame::Reflow DONE %X (%d,%d), MEW=%d(%d)\n", this,
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// aDesiredSize.width, aDesiredSize.height, aDesiredSize.mMaxElementWidth,
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// aDesiredSize.mComputeMEW);
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NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
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("exit nsSubDocumentFrame::Reflow: size=%d,%d status=%x",
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aDesiredSize.width, aDesiredSize.height, aStatus));
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NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSubDocumentFrame::VerifyTree() const
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{
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// XXX Completely disabled for now; once pseud-frames are reworked
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// then we can turn it back on.
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSubDocumentFrame::AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType)
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{
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nsIAtom *type = aChild->Tag();
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if ((type != nsHTMLAtoms::object && aAttribute == nsHTMLAtoms::src) ||
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(type == nsHTMLAtoms::object && aAttribute == nsHTMLAtoms::data)) {
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ReloadURL();
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}
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// If the noResize attribute changes, dis/allow frame to be resized
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else if (aAttribute == nsHTMLAtoms::noresize) {
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if (mContent->GetParent()->Tag() == nsHTMLAtoms::frameset) {
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nsIFrame* parentFrame = GetParent();
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if (parentFrame) {
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// There is no interface for nsHTMLFramesetFrame so QI'ing to
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// concrete class, yay!
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nsHTMLFramesetFrame* framesetFrame = nsnull;
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parentFrame->QueryInterface(NS_GET_IID(nsHTMLFramesetFrame),
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(void **)&framesetFrame);
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if (framesetFrame) {
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framesetFrame->RecalculateBorderResize();
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}
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}
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}
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}
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else if (aAttribute == nsHTMLAtoms::type) {
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if (!mFrameLoader)
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return NS_OK;
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nsAutoString value;
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aChild->GetAttr(kNameSpaceID_None, nsHTMLAtoms::type, value);
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// Notify our enclosing chrome that the primary content shell
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// has changed.
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|
nsCOMPtr<nsIDocShell> docShell;
|
|
mFrameLoader->GetDocShell(getter_AddRefs(docShell));
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(docShell));
|
|
|
|
// If our container is a web-shell, inform it that it has a new
|
|
// child. If it's not a web-shell then some things will not operate
|
|
// properly.
|
|
nsCOMPtr<nsISupports> container = aPresContext->GetContainer();
|
|
nsCOMPtr<nsIDocShellTreeNode> parentAsNode(do_QueryInterface(container));
|
|
|
|
if (parentAsNode) {
|
|
nsCOMPtr<nsIDocShellTreeItem> parentAsItem =
|
|
do_QueryInterface(parentAsNode);
|
|
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
|
|
parentAsItem->GetTreeOwner(getter_AddRefs(parentTreeOwner));
|
|
if (parentTreeOwner) {
|
|
PRInt32 parentType;
|
|
parentAsItem->GetItemType(&parentType);
|
|
PRBool is_primary_content =
|
|
parentType == nsIDocShellTreeItem::typeChrome &&
|
|
value.LowerCaseEqualsLiteral("content-primary");
|
|
|
|
parentTreeOwner->ContentShellAdded(docShellAsItem, is_primary_content,
|
|
value.get());
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
NS_NewSubDocumentFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsSubDocumentFrame* it = new (aPresShell) nsSubDocumentFrame;
|
|
if (!it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSubDocumentFrame::Destroy(nsIPresContext* aPresContext)
|
|
{
|
|
if (mFrameLoader) {
|
|
// Get the content viewer through the docshell, but don't call
|
|
// GetDocShell() since we don't want to create one if we don't
|
|
// have one.
|
|
|
|
nsCOMPtr<nsIDocShell> docShell;
|
|
mFrameLoader->GetDocShell(getter_AddRefs(docShell));
|
|
|
|
if (docShell) {
|
|
nsCOMPtr<nsIContentViewer> content_viewer;
|
|
docShell->GetContentViewer(getter_AddRefs(content_viewer));
|
|
|
|
if (content_viewer) {
|
|
// Mark the content viewer as non-sticky so that the presentation
|
|
// can safely go away when this frame is destroyed.
|
|
|
|
content_viewer->SetSticky(PR_FALSE);
|
|
|
|
// Hide the content viewer now that the frame is going away...
|
|
|
|
content_viewer->Hide();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mFrameLoader && mOwnsFrameLoader) {
|
|
// We own this frame loader, and we're going away, so destroy our
|
|
// frame loader.
|
|
|
|
mFrameLoader->Destroy();
|
|
}
|
|
|
|
return nsLeafFrame::Destroy(aPresContext);
|
|
}
|
|
|
|
nsSize nsSubDocumentFrame::GetMargin()
|
|
{
|
|
nsSize result(-1, -1);
|
|
nsresult rv = NS_OK;
|
|
nsCOMPtr<nsIHTMLContent> content = do_QueryInterface(mContent, &rv);
|
|
if (NS_SUCCEEDED(rv) && content) {
|
|
nsHTMLValue value;
|
|
content->GetHTMLAttribute(nsHTMLAtoms::marginwidth, value);
|
|
if (eHTMLUnit_Integer == value.GetUnit())
|
|
result.width = value.GetIntValue();
|
|
content->GetHTMLAttribute(nsHTMLAtoms::marginheight, value);
|
|
if (eHTMLUnit_Integer == value.GetUnit())
|
|
result.height = value.GetIntValue();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSubDocumentFrame::GetDocShell(nsIDocShell **aDocShell)
|
|
{
|
|
*aDocShell = nsnull;
|
|
|
|
nsIContent* content = GetContent();
|
|
if (!content) {
|
|
// Hmm, no content in this frame
|
|
// that's odd, not much to be done here then.
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mFrameLoader) {
|
|
nsCOMPtr<nsIFrameLoaderOwner> frame_loader_owner =
|
|
do_QueryInterface(content);
|
|
|
|
if (frame_loader_owner) {
|
|
frame_loader_owner->GetFrameLoader(getter_AddRefs(mFrameLoader));
|
|
}
|
|
|
|
if (!mFrameLoader) {
|
|
nsresult rv = NS_OK;
|
|
|
|
// No frame loader available from the content, create our own...
|
|
mFrameLoader = do_CreateInstance(NS_FRAMELOADER_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// ... remember that we own this frame loader...
|
|
mOwnsFrameLoader = PR_TRUE;
|
|
|
|
// ... initialize it...
|
|
mFrameLoader->Init(content);
|
|
|
|
// ... and tell it to start loading.
|
|
rv = mFrameLoader->LoadFrame();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
|
|
return mFrameLoader->GetDocShell(aDocShell);
|
|
}
|
|
|
|
nsresult
|
|
nsSubDocumentFrame::ShowDocShell()
|
|
{
|
|
nsCOMPtr<nsIDocShell> docShell;
|
|
nsresult rv = GetDocShell(getter_AddRefs(docShell));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
docShell->GetPresShell(getter_AddRefs(presShell));
|
|
|
|
if (presShell) {
|
|
// The docshell is already showing, nothing left to do...
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// pass along marginwidth, marginheight, scrolling so sub document
|
|
// can use it
|
|
nsSize margin = GetMargin();
|
|
docShell->SetMarginWidth(margin.width);
|
|
docShell->SetMarginHeight(margin.height);
|
|
|
|
// Current and initial scrolling is set so that all succeeding docs
|
|
// will use the scrolling value set here, regardless if scrolling is
|
|
// set by viewing a particular document (e.g. XUL turns off scrolling)
|
|
nsCOMPtr<nsIScrollable> sc(do_QueryInterface(docShell));
|
|
|
|
if (sc) {
|
|
PRInt32 scrolling = GetStyleDisplay()->mOverflow;
|
|
PRInt32 scrollX, scrollY;
|
|
switch (scrolling) {
|
|
case NS_STYLE_OVERFLOW_SCROLLBARS_NONE:
|
|
scrollX = NS_STYLE_OVERFLOW_HIDDEN;
|
|
scrollY = NS_STYLE_OVERFLOW_HIDDEN;
|
|
break;
|
|
case NS_STYLE_OVERFLOW_SCROLLBARS_HORIZONTAL:
|
|
scrollX = NS_STYLE_OVERFLOW_SCROLL;
|
|
scrollY = NS_STYLE_OVERFLOW_HIDDEN;
|
|
break;
|
|
case NS_STYLE_OVERFLOW_SCROLLBARS_VERTICAL:
|
|
scrollX = NS_STYLE_OVERFLOW_HIDDEN;
|
|
scrollY = NS_STYLE_OVERFLOW_SCROLL;
|
|
break;
|
|
case NS_STYLE_OVERFLOW_VISIBLE:
|
|
scrollX = scrollY = NS_STYLE_OVERFLOW_AUTO;
|
|
break;
|
|
default:
|
|
scrollX = scrollY = scrolling;
|
|
break;
|
|
}
|
|
|
|
sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_Y,
|
|
scrollX);
|
|
sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_X,
|
|
scrollY);
|
|
}
|
|
|
|
PRInt32 itemType = nsIDocShellTreeItem::typeContent;
|
|
nsCOMPtr<nsIDocShellTreeItem> treeItem(do_QueryInterface(docShell));
|
|
if (treeItem) {
|
|
treeItem->GetItemType(&itemType);
|
|
}
|
|
rv = CreateViewAndWidget(itemType == nsIDocShellTreeItem::typeChrome ?
|
|
eContentTypeUI : eContentTypeContent);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));
|
|
|
|
if (baseWindow) {
|
|
baseWindow->InitWindow(nsnull, mInnerView->GetWidget(), 0, 0, 10, 10);
|
|
|
|
// This is kinda whacky, this "Create()" call doesn't really
|
|
// create anything, one starts to wonder why this was named
|
|
// "Create"...
|
|
|
|
baseWindow->Create();
|
|
|
|
baseWindow->SetVisibility(PR_TRUE);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSubDocumentFrame::CreateViewAndWidget(nsContentType aContentType)
|
|
{
|
|
// create, init, set the parent of the view
|
|
nsIView* innerView;
|
|
nsresult rv = nsComponentManager::CreateInstance(kCViewCID, nsnull,
|
|
NS_GET_IID(nsIView),
|
|
(void **)&innerView);
|
|
if (NS_FAILED(rv)) {
|
|
NS_ERROR("Could not create inner view");
|
|
return rv;
|
|
}
|
|
mInnerView = innerView;
|
|
|
|
nsIView* outerView = GetView();
|
|
NS_ASSERTION(outerView, "Must have an outer view already");
|
|
nsRect viewBounds(0, 0, 0, 0); // size will be fixed during reflow
|
|
|
|
nsIViewManager* viewMan = outerView->GetViewManager();
|
|
// Create the inner view hidden if the outer view is already hidden
|
|
// (it won't get hidden properly otherwise)
|
|
rv = innerView->Init(viewMan, viewBounds, outerView,
|
|
outerView->GetVisibility());
|
|
viewMan->InsertChild(outerView, innerView, nsnull, PR_TRUE);
|
|
|
|
nsWidgetInitData initData;
|
|
initData.clipChildren = PR_TRUE;
|
|
initData.clipSiblings = PR_TRUE;
|
|
|
|
return innerView->CreateWidget(kCChildCID, nsnull, nsnull, PR_TRUE, PR_TRUE,
|
|
aContentType);
|
|
}
|
|
|
|
// load a new url
|
|
nsresult
|
|
nsSubDocumentFrame::ReloadURL()
|
|
{
|
|
if (!mOwnsFrameLoader || !mFrameLoader) {
|
|
// If we don't own the frame loader, we're not in charge of what's
|
|
// loaded into it.
|
|
return NS_OK;
|
|
}
|
|
|
|
return mFrameLoader->LoadFrame();
|
|
}
|
|
|
|
|