mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-04-05 14:12:46 +00:00
Changed ConstructRootFrame() to use the ":canvas" pseudo element style for
the root frame
This commit is contained in:
troy%netscape.com
parent
350b2d64a7
commit
b9c7f9eeb5
@ -2187,8 +2187,6 @@ nsCSSFrameConstructor::ConstructDocElementFrame(nsIPresContext* aPresCo
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// Create an area frame for the document element. This serves as the
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// Create an area frame for the document element. This serves as the
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// "initial containing block"
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// "initial containing block"
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// XXX Until we clean up how painting damage is handled, we need to use the
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// flag that says that this is the body...
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PRInt32 nameSpaceID;
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PRInt32 nameSpaceID;
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PRBool isBlockFrame = PR_FALSE;
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PRBool isBlockFrame = PR_FALSE;
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if (NS_SUCCEEDED(aDocElement->GetNameSpaceID(nameSpaceID)) &&
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if (NS_SUCCEEDED(aDocElement->GetNameSpaceID(nameSpaceID)) &&
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@ -2284,213 +2282,6 @@ nsCSSFrameConstructor::ConstructDocElementFrame(nsIPresContext* aPresCo
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return NS_OK;
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return NS_OK;
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}
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}
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/*
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NS_IMETHODIMP
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nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
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nsIContent* aDocElement,
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nsIFrame*& aNewFrame)
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{
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#ifdef NS_DEBUG
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nsCOMPtr<nsIDocument> doc;
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nsIContent* rootContent;
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// Verify that the content object is really the root content object
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aDocElement->GetDocument(*getter_AddRefs(doc));
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rootContent = doc->GetRootContent();
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NS_ASSERTION(rootContent == aDocElement, "unexpected content");
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NS_RELEASE(rootContent);
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#endif
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nsIFrame* viewportFrame;
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nsCOMPtr<nsIStyleContext> viewportPseudoStyle;
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// Create the viewport frame
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NS_NewViewportFrame(&viewportFrame);
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// Create a pseudo element style context
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::viewportPseudo,
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nsnull, PR_FALSE,
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getter_AddRefs(viewportPseudoStyle));
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{ // ensure that the viewport thinks it is a block frame, layout goes pootsy if it doesn't
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nsStyleDisplay* display = (nsStyleDisplay*)viewportPseudoStyle->GetMutableStyleData(eStyleStruct_Display);
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display->mDisplay = NS_STYLE_DISPLAY_BLOCK;
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}
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// Initialize the viewport frame. It has a NULL content object
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viewportFrame->Init(*aPresContext, nsnull, nsnull, viewportPseudoStyle, nsnull);
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// Bind the viewport frame to the root view
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nsCOMPtr<nsIPresShell> presShell;
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aPresContext->GetShell(getter_AddRefs(presShell));
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nsCOMPtr<nsIViewManager> viewManager;
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presShell->GetViewManager(getter_AddRefs(viewManager));
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nsIView* rootView;
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viewManager->GetRootView(rootView);
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viewportFrame->SetView(rootView);
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// If the device supports scrolling (e.g., in galley mode on the screen and
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// for print-preview, but not when printing), then create a scroll frame that
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// will act as the scrolling mechanism for the viewport.
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// XXX Do we even need a viewport when printing to a printer?
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// XXX It would be nice to have a better way to query for whether the device
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// is scrollable
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PRBool isScrollable = PR_TRUE;
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if (aPresContext) {
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nsIDeviceContext* dc;
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aPresContext->GetDeviceContext(&dc);
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if (dc) {
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PRBool supportsWidgets;
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if (NS_SUCCEEDED(dc->SupportsNativeWidgets(supportsWidgets))) {
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isScrollable = supportsWidgets;
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}
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NS_RELEASE(dc);
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}
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}
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// As long as the webshell doesn't prohibit it, and the device supports
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// it, create a scroll frame that will act as the scolling mechanism for
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// the viewport.
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nsISupports* container;
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if (nsnull != aPresContext) {
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aPresContext->GetContainer(&container);
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if (nsnull != container) {
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nsIWebShell* webShell = nsnull;
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container->QueryInterface(kIWebShellIID, (void**) &webShell);
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if (nsnull != webShell) {
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PRInt32 scrolling = -1;
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webShell->GetScrolling(scrolling);
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if (NS_STYLE_OVERFLOW_HIDDEN == scrolling) {
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isScrollable = PR_FALSE;
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}
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NS_RELEASE(webShell);
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}
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NS_RELEASE(container);
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}
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}
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// If the viewport should offer a scrolling mechanism, then create a
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// scroll frame
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nsIFrame* scrollFrame;
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nsCOMPtr<nsIStyleContext> scrollFrameStyle;
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if (isScrollable) {
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NS_NewScrollFrame(&scrollFrame);
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::viewportScrollPseudo,
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viewportPseudoStyle, PR_FALSE,
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getter_AddRefs(scrollFrameStyle));
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scrollFrame->Init(*aPresContext, nsnull, viewportFrame, scrollFrameStyle,
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nsnull);
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// Inform the view manager about the root scrollable view
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nsIView* scrollFrameView;
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nsIScrollableView* scrollingView;
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scrollFrame->GetView(&scrollFrameView);
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NS_ASSERTION(scrollFrameView, "scroll frame has no view");
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scrollFrameView->QueryInterface(kScrollViewIID, (void**)&scrollingView);
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viewManager->SetRootScrollableView(scrollingView);
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}
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PRBool isPaginated;
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aPresContext->IsPaginated(&isPaginated);
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if (isPaginated) {
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nsIFrame* pageSequenceFrame;
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// Create a page sequence frame
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NS_NewSimplePageSequenceFrame(&pageSequenceFrame);
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nsCOMPtr<nsIStyleContext> pageSequenceStyle;
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::pageSequencePseudo,
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(isScrollable ? scrollFrameStyle : viewportPseudoStyle),
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PR_FALSE,
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getter_AddRefs(pageSequenceStyle));
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pageSequenceFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
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viewportFrame, pageSequenceStyle, nsnull);
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if (isScrollable) {
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nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageSequenceFrame,
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pageSequenceStyle, PR_TRUE);
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}
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// Create the first page
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nsIFrame* pageFrame;
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NS_NewPageFrame(&pageFrame);
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// The page is the containing block for 'fixed' elements. which are repeated
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// on every page
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mFixedContainingBlock = pageFrame;
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// Initialize the page and force it to have a view. This makes printing of
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// the pages easier and faster.
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// XXX Use a PAGE style context...
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nsCOMPtr<nsIStyleContext> pagePseudoStyle;
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::pagePseudo,
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pageSequenceStyle, PR_FALSE,
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getter_AddRefs(pagePseudoStyle));
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pageFrame->Init(*aPresContext, nsnull, pageSequenceFrame, pagePseudoStyle,
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nsnull);
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nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageFrame,
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pagePseudoStyle, PR_TRUE);
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// The eventual parent of the document element frame
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mDocElementContainingBlock = pageFrame;
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// Set the initial child lists
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pageSequenceFrame->SetInitialChildList(*aPresContext, nsnull, pageFrame);
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if (isScrollable) {
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scrollFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
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viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
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} else {
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viewportFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
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}
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} else {
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// The viewport is the containing block for 'fixed' elements
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mFixedContainingBlock = viewportFrame;
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// Create the root frame. The document element's frame is a child of the
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// root frame.
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//
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// The root frame serves two purposes:
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// - reserves space for any margins needed for the document element's frame
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// - makes sure that the document element's frame covers the entire canvas
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nsIFrame* rootFrame;
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NS_NewRootFrame(&rootFrame);
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nsCOMPtr<nsIStyleContext> canvasPseudoStyle;
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::canvasPseudo,
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(isScrollable ? scrollFrameStyle : viewportPseudoStyle),
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PR_FALSE,
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getter_AddRefs(canvasPseudoStyle));
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// XXX this should be a canvas pseudo style context
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rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
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viewportFrame, canvasPseudoStyle, nsnull);
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if (isScrollable) {
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nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
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canvasPseudoStyle, PR_TRUE);
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}
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// The eventual parent of the document element frame
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mDocElementContainingBlock = rootFrame;
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// Set the initial child lists
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if (isScrollable) {
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scrollFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
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viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
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} else {
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viewportFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
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}
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}
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aNewFrame = viewportFrame;
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return NS_OK;
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}
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*/
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NS_IMETHODIMP
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NS_IMETHODIMP
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nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
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nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
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nsIContent* aDocElement,
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nsIContent* aDocElement,
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@ -2702,9 +2493,16 @@ nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
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nsIFrame* rootFrame;
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nsIFrame* rootFrame;
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NS_NewRootFrame(&rootFrame);
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NS_NewRootFrame(&rootFrame);
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// XXX this should be a root pseudo style context
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// Initialize the frame. It gets a pseudo element style context
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// XXX When we fix it so the scroll frame uses its own pseudo style context
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// (instead of the viewport's pseudo style context), then this needs to change
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// and a different parent style context pointer passed in...
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nsCOMPtr<nsIStyleContext> canvasPseudoStyle;
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::canvasPseudo,
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viewportPseudoStyle, PR_FALSE,
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getter_AddRefs(canvasPseudoStyle));
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rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
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rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
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viewportFrame, viewportPseudoStyle, nsnull);
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viewportFrame, canvasPseudoStyle, nsnull);
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if (isScrollable) {
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if (isScrollable) {
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nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
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nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
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viewportPseudoStyle, PR_TRUE);
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viewportPseudoStyle, PR_TRUE);
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@ -2187,8 +2187,6 @@ nsCSSFrameConstructor::ConstructDocElementFrame(nsIPresContext* aPresCo
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// Create an area frame for the document element. This serves as the
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// Create an area frame for the document element. This serves as the
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// "initial containing block"
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// "initial containing block"
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// XXX Until we clean up how painting damage is handled, we need to use the
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// flag that says that this is the body...
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PRInt32 nameSpaceID;
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PRInt32 nameSpaceID;
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PRBool isBlockFrame = PR_FALSE;
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PRBool isBlockFrame = PR_FALSE;
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if (NS_SUCCEEDED(aDocElement->GetNameSpaceID(nameSpaceID)) &&
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if (NS_SUCCEEDED(aDocElement->GetNameSpaceID(nameSpaceID)) &&
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@ -2284,213 +2282,6 @@ nsCSSFrameConstructor::ConstructDocElementFrame(nsIPresContext* aPresCo
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return NS_OK;
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return NS_OK;
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}
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}
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/*
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NS_IMETHODIMP
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nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
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nsIContent* aDocElement,
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nsIFrame*& aNewFrame)
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{
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#ifdef NS_DEBUG
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nsCOMPtr<nsIDocument> doc;
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nsIContent* rootContent;
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// Verify that the content object is really the root content object
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aDocElement->GetDocument(*getter_AddRefs(doc));
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rootContent = doc->GetRootContent();
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NS_ASSERTION(rootContent == aDocElement, "unexpected content");
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NS_RELEASE(rootContent);
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#endif
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nsIFrame* viewportFrame;
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nsCOMPtr<nsIStyleContext> viewportPseudoStyle;
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// Create the viewport frame
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NS_NewViewportFrame(&viewportFrame);
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// Create a pseudo element style context
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::viewportPseudo,
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nsnull, PR_FALSE,
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getter_AddRefs(viewportPseudoStyle));
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{ // ensure that the viewport thinks it is a block frame, layout goes pootsy if it doesn't
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nsStyleDisplay* display = (nsStyleDisplay*)viewportPseudoStyle->GetMutableStyleData(eStyleStruct_Display);
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display->mDisplay = NS_STYLE_DISPLAY_BLOCK;
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}
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// Initialize the viewport frame. It has a NULL content object
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viewportFrame->Init(*aPresContext, nsnull, nsnull, viewportPseudoStyle, nsnull);
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// Bind the viewport frame to the root view
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nsCOMPtr<nsIPresShell> presShell;
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aPresContext->GetShell(getter_AddRefs(presShell));
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nsCOMPtr<nsIViewManager> viewManager;
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presShell->GetViewManager(getter_AddRefs(viewManager));
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nsIView* rootView;
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viewManager->GetRootView(rootView);
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viewportFrame->SetView(rootView);
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// If the device supports scrolling (e.g., in galley mode on the screen and
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// for print-preview, but not when printing), then create a scroll frame that
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// will act as the scrolling mechanism for the viewport.
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// XXX Do we even need a viewport when printing to a printer?
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// XXX It would be nice to have a better way to query for whether the device
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// is scrollable
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PRBool isScrollable = PR_TRUE;
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if (aPresContext) {
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nsIDeviceContext* dc;
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aPresContext->GetDeviceContext(&dc);
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if (dc) {
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PRBool supportsWidgets;
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if (NS_SUCCEEDED(dc->SupportsNativeWidgets(supportsWidgets))) {
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isScrollable = supportsWidgets;
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}
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NS_RELEASE(dc);
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}
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}
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// As long as the webshell doesn't prohibit it, and the device supports
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// it, create a scroll frame that will act as the scolling mechanism for
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// the viewport.
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nsISupports* container;
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if (nsnull != aPresContext) {
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aPresContext->GetContainer(&container);
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if (nsnull != container) {
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nsIWebShell* webShell = nsnull;
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container->QueryInterface(kIWebShellIID, (void**) &webShell);
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if (nsnull != webShell) {
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PRInt32 scrolling = -1;
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webShell->GetScrolling(scrolling);
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if (NS_STYLE_OVERFLOW_HIDDEN == scrolling) {
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isScrollable = PR_FALSE;
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}
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NS_RELEASE(webShell);
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}
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NS_RELEASE(container);
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}
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}
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// If the viewport should offer a scrolling mechanism, then create a
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// scroll frame
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nsIFrame* scrollFrame;
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nsCOMPtr<nsIStyleContext> scrollFrameStyle;
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if (isScrollable) {
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NS_NewScrollFrame(&scrollFrame);
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aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::viewportScrollPseudo,
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viewportPseudoStyle, PR_FALSE,
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getter_AddRefs(scrollFrameStyle));
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scrollFrame->Init(*aPresContext, nsnull, viewportFrame, scrollFrameStyle,
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nsnull);
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||||||
// Inform the view manager about the root scrollable view
|
|
||||||
nsIView* scrollFrameView;
|
|
||||||
nsIScrollableView* scrollingView;
|
|
||||||
|
|
||||||
scrollFrame->GetView(&scrollFrameView);
|
|
||||||
NS_ASSERTION(scrollFrameView, "scroll frame has no view");
|
|
||||||
scrollFrameView->QueryInterface(kScrollViewIID, (void**)&scrollingView);
|
|
||||||
viewManager->SetRootScrollableView(scrollingView);
|
|
||||||
}
|
|
||||||
|
|
||||||
PRBool isPaginated;
|
|
||||||
aPresContext->IsPaginated(&isPaginated);
|
|
||||||
if (isPaginated) {
|
|
||||||
nsIFrame* pageSequenceFrame;
|
|
||||||
|
|
||||||
// Create a page sequence frame
|
|
||||||
NS_NewSimplePageSequenceFrame(&pageSequenceFrame);
|
|
||||||
nsCOMPtr<nsIStyleContext> pageSequenceStyle;
|
|
||||||
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::pageSequencePseudo,
|
|
||||||
(isScrollable ? scrollFrameStyle : viewportPseudoStyle),
|
|
||||||
PR_FALSE,
|
|
||||||
getter_AddRefs(pageSequenceStyle));
|
|
||||||
pageSequenceFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
|
||||||
viewportFrame, pageSequenceStyle, nsnull);
|
|
||||||
if (isScrollable) {
|
|
||||||
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageSequenceFrame,
|
|
||||||
pageSequenceStyle, PR_TRUE);
|
|
||||||
}
|
|
||||||
|
|
||||||
// Create the first page
|
|
||||||
nsIFrame* pageFrame;
|
|
||||||
NS_NewPageFrame(&pageFrame);
|
|
||||||
|
|
||||||
// The page is the containing block for 'fixed' elements. which are repeated
|
|
||||||
// on every page
|
|
||||||
mFixedContainingBlock = pageFrame;
|
|
||||||
|
|
||||||
// Initialize the page and force it to have a view. This makes printing of
|
|
||||||
// the pages easier and faster.
|
|
||||||
// XXX Use a PAGE style context...
|
|
||||||
nsCOMPtr<nsIStyleContext> pagePseudoStyle;
|
|
||||||
|
|
||||||
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::pagePseudo,
|
|
||||||
pageSequenceStyle, PR_FALSE,
|
|
||||||
getter_AddRefs(pagePseudoStyle));
|
|
||||||
|
|
||||||
pageFrame->Init(*aPresContext, nsnull, pageSequenceFrame, pagePseudoStyle,
|
|
||||||
nsnull);
|
|
||||||
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageFrame,
|
|
||||||
pagePseudoStyle, PR_TRUE);
|
|
||||||
|
|
||||||
// The eventual parent of the document element frame
|
|
||||||
mDocElementContainingBlock = pageFrame;
|
|
||||||
|
|
||||||
|
|
||||||
// Set the initial child lists
|
|
||||||
pageSequenceFrame->SetInitialChildList(*aPresContext, nsnull, pageFrame);
|
|
||||||
if (isScrollable) {
|
|
||||||
scrollFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
|
|
||||||
viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
|
|
||||||
} else {
|
|
||||||
viewportFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
|
|
||||||
}
|
|
||||||
|
|
||||||
} else {
|
|
||||||
// The viewport is the containing block for 'fixed' elements
|
|
||||||
mFixedContainingBlock = viewportFrame;
|
|
||||||
|
|
||||||
// Create the root frame. The document element's frame is a child of the
|
|
||||||
// root frame.
|
|
||||||
//
|
|
||||||
// The root frame serves two purposes:
|
|
||||||
// - reserves space for any margins needed for the document element's frame
|
|
||||||
// - makes sure that the document element's frame covers the entire canvas
|
|
||||||
nsIFrame* rootFrame;
|
|
||||||
NS_NewRootFrame(&rootFrame);
|
|
||||||
|
|
||||||
nsCOMPtr<nsIStyleContext> canvasPseudoStyle;
|
|
||||||
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::canvasPseudo,
|
|
||||||
(isScrollable ? scrollFrameStyle : viewportPseudoStyle),
|
|
||||||
PR_FALSE,
|
|
||||||
getter_AddRefs(canvasPseudoStyle));
|
|
||||||
// XXX this should be a canvas pseudo style context
|
|
||||||
rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
|
||||||
viewportFrame, canvasPseudoStyle, nsnull);
|
|
||||||
if (isScrollable) {
|
|
||||||
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
|
|
||||||
canvasPseudoStyle, PR_TRUE);
|
|
||||||
}
|
|
||||||
|
|
||||||
// The eventual parent of the document element frame
|
|
||||||
mDocElementContainingBlock = rootFrame;
|
|
||||||
|
|
||||||
// Set the initial child lists
|
|
||||||
if (isScrollable) {
|
|
||||||
scrollFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
|
|
||||||
viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
|
|
||||||
} else {
|
|
||||||
viewportFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
aNewFrame = viewportFrame;
|
|
||||||
return NS_OK;
|
|
||||||
}
|
|
||||||
*/
|
|
||||||
|
|
||||||
NS_IMETHODIMP
|
NS_IMETHODIMP
|
||||||
nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
|
nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
|
||||||
nsIContent* aDocElement,
|
nsIContent* aDocElement,
|
||||||
@ -2702,9 +2493,16 @@ nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
|
|||||||
nsIFrame* rootFrame;
|
nsIFrame* rootFrame;
|
||||||
NS_NewRootFrame(&rootFrame);
|
NS_NewRootFrame(&rootFrame);
|
||||||
|
|
||||||
// XXX this should be a root pseudo style context
|
// Initialize the frame. It gets a pseudo element style context
|
||||||
|
// XXX When we fix it so the scroll frame uses its own pseudo style context
|
||||||
|
// (instead of the viewport's pseudo style context), then this needs to change
|
||||||
|
// and a different parent style context pointer passed in...
|
||||||
|
nsCOMPtr<nsIStyleContext> canvasPseudoStyle;
|
||||||
|
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::canvasPseudo,
|
||||||
|
viewportPseudoStyle, PR_FALSE,
|
||||||
|
getter_AddRefs(canvasPseudoStyle));
|
||||||
rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
||||||
viewportFrame, viewportPseudoStyle, nsnull);
|
viewportFrame, canvasPseudoStyle, nsnull);
|
||||||
if (isScrollable) {
|
if (isScrollable) {
|
||||||
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
|
||||||
viewportPseudoStyle, PR_TRUE);
|
viewportPseudoStyle, PR_TRUE);
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user