The Tor Browser: layout/inspector/inLayoutUtils.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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/. */

     6 #include "inLayoutUtils.h"

     8 #include "nsIDocument.h"

     9 #include "nsIDOMDocument.h"

    10 #include "nsIContent.h"

    11 #include "nsIContentViewer.h"

    12 #include "nsPIDOMWindow.h"

    13 #include "nsIDocShell.h"

    14 #include "nsIPresShell.h"

    15 #include "nsPresContext.h"

    16 #include "mozilla/EventStateManager.h"

    17 #include "mozilla/dom/Element.h"

    19 using namespace mozilla;

    21 ///////////////////////////////////////////////////////////////////////////////

    23 nsIDOMWindow*

    24 inLayoutUtils::GetWindowFor(nsIDOMNode* aNode)

    25 {

    26   nsCOMPtr<nsIDOMDocument> doc1;

    27   aNode->GetOwnerDocument(getter_AddRefs(doc1));

    28   return GetWindowFor(doc1.get());

    29 }

    31 nsIDOMWindow*

    32 inLayoutUtils::GetWindowFor(nsIDOMDocument* aDoc)

    33 {

    34   nsCOMPtr<nsIDOMWindow> window;

    35   aDoc->GetDefaultView(getter_AddRefs(window));

    36   return window;

    37 }

    39 nsIPresShell*

    40 inLayoutUtils::GetPresShellFor(nsISupports* aThing)

    41 {

    42   nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aThing);

    44   return window->GetDocShell()->GetPresShell();

    45 }

    47 /*static*/

    48 nsIFrame*

    49 inLayoutUtils::GetFrameFor(nsIDOMElement* aElement)

    50 {

    51   nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);

    52   return content->GetPrimaryFrame();

    53 }

    55 EventStateManager*

    56 inLayoutUtils::GetEventStateManagerFor(nsIDOMElement *aElement)

    57 {

    58   NS_PRECONDITION(aElement, "Passing in a null element is bad");

    60   nsCOMPtr<nsIDOMDocument> domDoc;

    61   aElement->GetOwnerDocument(getter_AddRefs(domDoc));

    62   nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);

    64   if (!doc) {

    65     NS_WARNING("Could not get an nsIDocument!");

    66     return nullptr;

    67   }

    69   nsIPresShell *shell = doc->GetShell();

    70   if (!shell)

    71     return nullptr;

    73   return shell->GetPresContext()->EventStateManager();

    74 }

    76 nsIDOMDocument*

    77 inLayoutUtils::GetSubDocumentFor(nsIDOMNode* aNode)

    78 {

    79   nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);

    80   if (content) {

    81     nsCOMPtr<nsIDocument> doc = content->GetDocument();

    82     if (doc) {

    83       nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(doc->GetSubDocumentFor(content)));

    85       return domdoc;

    86     }

    87   }

    89   return nullptr;

    90 }

    92 nsIDOMNode*

    93 inLayoutUtils::GetContainerFor(const nsIDocument& aDoc)

    94 {

    95   nsPIDOMWindow* pwin = aDoc.GetWindow();

    96   if (!pwin) {

    97     return nullptr;

    98   }

   100   nsCOMPtr<nsIDOMNode> node = do_QueryInterface(pwin->GetFrameElementInternal());

   101   return node;

   102 }

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