The Tor Browser / file comparison
comparison: layout/xul/nsContainerBoxObject.cpp
layout/xul/nsContainerBoxObject.cpp
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:3bc3378efd5d |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsCOMPtr.h" | |
| 7 #include "nsIContainerBoxObject.h" | |
| 8 #include "nsIBrowserBoxObject.h" | |
| 9 #include "nsIEditorBoxObject.h" | |
| 10 #include "nsIIFrameBoxObject.h" | |
| 11 #include "nsBoxObject.h" | |
| 12 #include "nsIDocShell.h" | |
| 13 #include "nsIContent.h" | |
| 14 #include "nsIDocument.h" | |
| 15 #include "nsIFrame.h" | |
| 16 #include "nsSubDocumentFrame.h" | |
| 17 | |
| 18 /** | |
| 19 * nsContainerBoxObject implements deprecated nsIBrowserBoxObject, | |
| 20 * nsIEditorBoxObject and nsIIFrameBoxObject interfaces only because of the | |
| 21 * backward compatibility. | |
| 22 */ | |
| 23 | |
| 24 class nsContainerBoxObject : public nsBoxObject, | |
| 25 public nsIBrowserBoxObject, | |
| 26 public nsIEditorBoxObject, | |
| 27 public nsIIFrameBoxObject | |
| 28 { | |
| 29 public: | |
| 30 NS_DECL_ISUPPORTS_INHERITED | |
| 31 NS_DECL_NSICONTAINERBOXOBJECT | |
| 32 NS_DECL_NSIBROWSERBOXOBJECT | |
| 33 NS_DECL_NSIEDITORBOXOBJECT | |
| 34 NS_DECL_NSIIFRAMEBOXOBJECT | |
| 35 }; | |
| 36 | |
| 37 NS_INTERFACE_MAP_BEGIN(nsContainerBoxObject) | |
| 38 NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContainerBoxObject, nsIBrowserBoxObject) | |
| 39 NS_INTERFACE_MAP_ENTRY(nsIBrowserBoxObject) | |
| 40 NS_INTERFACE_MAP_ENTRY(nsIEditorBoxObject) | |
| 41 NS_INTERFACE_MAP_ENTRY(nsIIFrameBoxObject) | |
| 42 NS_INTERFACE_MAP_END_INHERITING(nsBoxObject) | |
| 43 | |
| 44 NS_IMPL_ADDREF_INHERITED(nsContainerBoxObject, nsBoxObject) | |
| 45 NS_IMPL_RELEASE_INHERITED(nsContainerBoxObject, nsBoxObject) | |
| 46 | |
| 47 NS_IMETHODIMP nsContainerBoxObject::GetDocShell(nsIDocShell** aResult) | |
| 48 { | |
| 49 *aResult = nullptr; | |
| 50 | |
| 51 nsSubDocumentFrame *subDocFrame = do_QueryFrame(GetFrame(false)); | |
| 52 if (subDocFrame) { | |
| 53 // Ok, the frame for mContent is an nsSubDocumentFrame, it knows how | |
| 54 // to reach the docshell, so ask it... | |
| 55 | |
| 56 return subDocFrame->GetDocShell(aResult); | |
| 57 } | |
| 58 | |
| 59 if (!mContent) { | |
| 60 return NS_OK; | |
| 61 } | |
| 62 | |
| 63 // No nsSubDocumentFrame available for mContent, try if there's a mapping | |
| 64 // between mContent's document to mContent's subdocument. | |
| 65 | |
| 66 // XXXbz sXBL/XBL2 issue -- ownerDocument or currentDocument? | |
| 67 nsIDocument *doc = mContent->GetDocument(); | |
| 68 | |
| 69 if (!doc) { | |
| 70 return NS_OK; | |
| 71 } | |
| 72 | |
| 73 nsIDocument *sub_doc = doc->GetSubDocumentFor(mContent); | |
| 74 | |
| 75 if (!sub_doc) { | |
| 76 return NS_OK; | |
| 77 } | |
| 78 | |
| 79 NS_IF_ADDREF(*aResult = sub_doc->GetDocShell()); | |
| 80 return NS_OK; | |
| 81 } | |
| 82 | |
| 83 nsresult | |
| 84 NS_NewContainerBoxObject(nsIBoxObject** aResult) | |
| 85 { | |
| 86 *aResult = new nsContainerBoxObject(); | |
| 87 if (!*aResult) | |
| 88 return NS_ERROR_OUT_OF_MEMORY; | |
| 89 NS_ADDREF(*aResult); | |
| 90 return NS_OK; | |
| 91 } | |
| 92 |
