Bug 522352 - make nsSubDocumentFrame not assume as much about docshells: move all that into the frameloader, r=bz

content/base/src/nsFrameLoader.cpp

@@ -52,6 +52,7 @@
 #include "nsPresContext.h"
 #include "nsIPresShell.h"
 #include "nsIContent.h"
+#include "nsIContentViewer.h"
 #include "nsIDocument.h"
 #include "nsIDOMDocument.h"
 #include "nsIDOMWindow.h"
@@ -67,6 +68,7 @@
 #include "nsUnicharUtils.h"
 #include "nsIScriptGlobalObject.h"
 #include "nsIScriptSecurityManager.h"
+#include "nsIScrollable.h"
 #include "nsFrameLoader.h"
 #include "nsIDOMEventTarget.h"
 #include "nsIFrame.h"
@@ -77,6 +79,7 @@
 #include "nsEventDispatcher.h"
 #include "nsISHistory.h"
 #include "nsISHistoryInternal.h"
+#include "nsIDOMNSHTMLDocument.h"
 
 #include "nsIURI.h"
 #include "nsIURL.h"
@@ -521,6 +524,115 @@ AllDescendantsOfType(nsIDocShellTreeItem* aParentItem, PRInt32 aType)
   return PR_TRUE;
 }
 
+bool
+nsFrameLoader::Show(PRInt32 marginWidth, PRInt32 marginHeight,
+                    PRInt32 scrollbarPrefX, PRInt32 scrollbarPrefY,
+                    nsIFrameFrame* frame)
+{
+  nsContentType contentType;
+
+  nsresult rv = MaybeCreateDocShell();
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  if (mRemoteFrame) {
+    contentType = eContentTypeUI;
+  }
+  else {
+    if (!mDocShell)
+      return false;
+
+    nsCOMPtr<nsIPresShell> presShell;
+    mDocShell->GetPresShell(getter_AddRefs(presShell));
+    if (presShell)
+      return true;
+
+    mDocShell->SetMarginWidth(marginWidth);
+    mDocShell->SetMarginHeight(marginHeight);
+
+    nsCOMPtr<nsIScrollable> sc = do_QueryInterface(mDocShell);
+    if (sc) {
+      sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_X,
+                                         scrollbarPrefX);
+      sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_Y,
+                                         scrollbarPrefY);
+    }
+
+
+    nsCOMPtr<nsIDocShellTreeItem> treeItem = do_QueryInterface(mDocShell);
+    NS_ASSERTION(treeItem,
+                 "Found a nsIDocShell that isn't a nsIDocShellTreeItem.");
+
+    PRInt32 itemType;
+    treeItem->GetItemType(&itemType);
+
+    if (itemType == nsIDocShellTreeItem::typeChrome)
+      contentType = eContentTypeUI;
+    else {
+      nsCOMPtr<nsIDocShellTreeItem> sameTypeParent;
+      treeItem->GetSameTypeParent(getter_AddRefs(sameTypeParent));
+      contentType = sameTypeParent ? eContentTypeContentFrame : eContentTypeContent;
+    }
+  }
+
+  nsIView* view = frame->CreateViewAndWidget(contentType);
+  if (!view)
+    return false;
+
+  if (!mRemoteFrame) {
+    nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(mDocShell);
+    NS_ASSERTION(baseWindow, "Found a nsIDocShell that isn't a nsIBaseWindow.");
+    baseWindow->InitWindow(nsnull, view->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);
+
+    // Trigger editor re-initialization if midas is turned on in the
+    // sub-document. This shouldn't be necessary, but given the way our
+    // editor works, it is. See
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=284245
+    nsCOMPtr<nsIPresShell> presShell;
+    mDocShell->GetPresShell(getter_AddRefs(presShell));
+    if (presShell) {
+      nsCOMPtr<nsIDOMNSHTMLDocument> doc =
+        do_QueryInterface(presShell->GetDocument());
+
+      if (doc) {
+        nsAutoString designMode;
+        doc->GetDesignMode(designMode);
+
+        if (designMode.EqualsLiteral("on")) {
+          doc->SetDesignMode(NS_LITERAL_STRING("off"));
+          doc->SetDesignMode(NS_LITERAL_STRING("on"));
+        }
+      }
+    }
+  }
+
+  return true;
+}
+
+void
+nsFrameLoader::Hide()
+{
+  if (!mDocShell)
+    return;
+
+  nsCOMPtr<nsIContentViewer> contentViewer;
+  mDocShell->GetContentViewer(getter_AddRefs(contentViewer));
+  if (contentViewer)
+    contentViewer->SetSticky(PR_FALSE);
+
+  nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(mDocShell);
+  NS_ASSERTION(baseWin,
+               "Found an nsIDocShell which doesn't implement nsIBaseWindow.");
+  baseWin->SetVisibility(PR_FALSE);
+  baseWin->SetParentWidget(nsnull);
+}
+
 nsresult
 nsFrameLoader::SwapWithOtherLoader(nsFrameLoader* aOther,
                                    nsRefPtr<nsFrameLoader>& aFirstToSwap,
@@ -1134,9 +1246,11 @@ NS_IMETHODIMP
 nsFrameLoader::UpdatePositionAndSize(nsIFrame *aIFrame)
 {
 #ifdef MOZ_IPC
-  if (mChildProcess) {
-    nsIntSize size = GetSubDocumentSize(aIFrame);
-    mChildProcess->Move(0, 0, size.width, size.height);
+  if (mRemoteFrame) {
+    if (mChildProcess) {
+      nsIntSize size = GetSubDocumentSize(aIFrame);
+      mChildProcess->Move(0, 0, size.width, size.height);
+    }
     return NS_OK;
   }
 #endif