Add clientXXX and scrollXXX properties to XUL elements, also add width/height properties to ClientRect, r+sr=roc
This commit is contained in:
Neil Deakin
@@ -125,6 +125,12 @@
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#include "nsContentCreatorFunctions.h"
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#include "nsIFocusController.h"
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#include "nsIControllers.h"
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#include "nsLayoutUtils.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsIScrollableFrame.h"
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#include "nsIScrollableView.h"
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#include "nsIScrollableViewProvider.h"
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#include "nsXBLInsertionPoint.h"
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#include "nsICSSStyleRule.h" /* For nsCSSSelectorList */
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#include "nsCSSRuleProcessor.h"
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@@ -798,6 +804,315 @@ nsNSElementTearoff::GetElementsByClassName(const nsAString& aClasses,
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return nsDocument::GetElementsByClassNameHelper(mContent, aClasses, aReturn);
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}
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nsIFrame*
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nsGenericElement::GetStyledFrame()
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{
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nsIFrame *frame = GetPrimaryFrame(Flush_Layout);
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return (frame && frame->GetType() == nsGkAtoms::tableOuterFrame) ?
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frame->GetFirstChild(nsnull) : frame;
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}
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void
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nsGenericElement::GetOffsetRect(nsRect& aRect, nsIContent** aOffsetParent)
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{
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*aOffsetParent = nsnull;
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aRect = nsRect();
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nsIFrame* frame = GetStyledFrame();
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if (!frame) {
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return;
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}
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nsPoint origin = frame->GetPosition();
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aRect.x = nsPresContext::AppUnitsToIntCSSPixels(origin.x);
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aRect.y = nsPresContext::AppUnitsToIntCSSPixels(origin.y);
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// Get the union of all rectangles in this and continuation frames.
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// It doesn't really matter what we use as aRelativeTo here, since
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// we only care about the size. Using 'parent' might make things
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// a bit faster by speeding up the internal GetOffsetTo operations.
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nsRect rcFrame = nsLayoutUtils::GetAllInFlowRectsUnion(frame, nsnull);
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aRect.width = nsPresContext::AppUnitsToIntCSSPixels(rcFrame.width);
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aRect.height = nsPresContext::AppUnitsToIntCSSPixels(rcFrame.height);
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}
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void
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nsNSElementTearoff::GetScrollInfo(nsIScrollableView **aScrollableView,
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nsIFrame **aFrame)
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{
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*aScrollableView = nsnull;
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// it isn't clear what to return for SVG nodes, so just return nothing
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if (mContent->IsNodeOfType(nsINode::eSVG)) {
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if (aFrame)
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*aFrame = nsnull;
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return;
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}
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nsIFrame* frame =
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(static_cast<nsGenericElement*>(mContent))->GetStyledFrame();
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if (aFrame) {
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*aFrame = frame;
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}
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if (!frame) {
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return;
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}
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// Get the scrollable frame
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nsIScrollableFrame *scrollFrame = nsnull;
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CallQueryInterface(frame, &scrollFrame);
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if (!scrollFrame) {
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nsIScrollableViewProvider *scrollProvider = nsnull;
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CallQueryInterface(frame, &scrollProvider);
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// menu frames implement nsIScrollableViewProvider but we don't want
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// to use it here.
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if (scrollProvider && frame->GetType() != nsGkAtoms::menuFrame) {
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*aScrollableView = scrollProvider->GetScrollableView();
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if (*aScrollableView) {
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return;
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}
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}
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nsIDocument* doc = mContent->GetCurrentDoc();
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PRBool quirksMode = doc &&
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doc->GetCompatibilityMode() == eCompatibility_NavQuirks;
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if ((quirksMode && mContent->NodeInfo()->Equals(nsGkAtoms::body)) ||
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(!quirksMode && mContent->NodeInfo()->Equals(nsGkAtoms::html))) {
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// In quirks mode, the scroll info for the body element should map to the
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// scroll info for the nearest scrollable frame above the body element
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// (i.e. the root scrollable frame). This is what IE6 does in quirks
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// mode. In strict mode the root scrollable frame corresponds to the
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// html element in IE6, so we map the scroll info for the html element to
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// the root scrollable frame.
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do {
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frame = frame->GetParent();
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if (!frame) {
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break;
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}
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CallQueryInterface(frame, &scrollFrame);
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} while (!scrollFrame);
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}
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if (!scrollFrame) {
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return;
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}
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}
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// Get the scrollable view
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*aScrollableView = scrollFrame->GetScrollableView();
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}
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nsresult
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nsNSElementTearoff::GetScrollTop(PRInt32* aScrollTop)
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{
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NS_ENSURE_ARG_POINTER(aScrollTop);
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*aScrollTop = 0;
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nsIScrollableView *view;
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nsresult rv = NS_OK;
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GetScrollInfo(&view);
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if (view) {
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nscoord xPos, yPos;
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rv = view->GetScrollPosition(xPos, yPos);
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*aScrollTop = nsPresContext::AppUnitsToIntCSSPixels(yPos);
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}
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return rv;
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}
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nsresult
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nsNSElementTearoff::SetScrollTop(PRInt32 aScrollTop)
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{
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nsIScrollableView *view;
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nsresult rv = NS_OK;
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GetScrollInfo(&view);
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if (view) {
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nscoord xPos, yPos;
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rv = view->GetScrollPosition(xPos, yPos);
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if (NS_SUCCEEDED(rv)) {
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rv = view->ScrollTo(xPos, nsPresContext::CSSPixelsToAppUnits(aScrollTop),
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NS_VMREFRESH_IMMEDIATE);
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}
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}
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return rv;
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}
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nsresult
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nsNSElementTearoff::GetScrollLeft(PRInt32* aScrollLeft)
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{
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NS_ENSURE_ARG_POINTER(aScrollLeft);
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*aScrollLeft = 0;
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nsIScrollableView *view;
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nsresult rv = NS_OK;
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GetScrollInfo(&view);
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if (view) {
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nscoord xPos, yPos;
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rv = view->GetScrollPosition(xPos, yPos);
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*aScrollLeft = nsPresContext::AppUnitsToIntCSSPixels(xPos);
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}
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return rv;
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}
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nsresult
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nsNSElementTearoff::SetScrollLeft(PRInt32 aScrollLeft)
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{
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nsIScrollableView *view;
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nsresult rv = NS_OK;
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GetScrollInfo(&view);
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if (view) {
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nscoord xPos, yPos;
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rv = view->GetScrollPosition(xPos, yPos);
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if (NS_SUCCEEDED(rv)) {
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rv = view->ScrollTo(nsPresContext::CSSPixelsToAppUnits(aScrollLeft),
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yPos, NS_VMREFRESH_IMMEDIATE);
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}
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}
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return rv;
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}
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nsresult
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nsNSElementTearoff::GetScrollHeight(PRInt32* aScrollHeight)
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{
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NS_ENSURE_ARG_POINTER(aScrollHeight);
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*aScrollHeight = 0;
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if (mContent->IsNodeOfType(nsINode::eSVG))
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return NS_OK;
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nsIScrollableView *scrollView;
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nsresult rv = NS_OK;
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GetScrollInfo(&scrollView);
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if (!scrollView) {
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nsRect rcFrame;
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nsCOMPtr<nsIContent> parent;
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(static_cast<nsGenericElement *>(mContent))->GetOffsetRect(rcFrame, getter_AddRefs(parent));
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*aScrollHeight = rcFrame.height;
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return NS_OK;
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}
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// xMax and yMax is the total length of our container
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nscoord xMax, yMax;
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rv = scrollView->GetContainerSize(&xMax, &yMax);
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*aScrollHeight = nsPresContext::AppUnitsToIntCSSPixels(yMax);
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return rv;
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}
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nsresult
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nsNSElementTearoff::GetScrollWidth(PRInt32* aScrollWidth)
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{
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NS_ENSURE_ARG_POINTER(aScrollWidth);
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*aScrollWidth = 0;
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if (mContent->IsNodeOfType(nsINode::eSVG))
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return NS_OK;
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nsIScrollableView *scrollView;
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nsresult rv = NS_OK;
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GetScrollInfo(&scrollView);
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if (!scrollView) {
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nsRect rcFrame;
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nsCOMPtr<nsIContent> parent;
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(static_cast<nsGenericElement *>(mContent))->GetOffsetRect(rcFrame, getter_AddRefs(parent));
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*aScrollWidth = rcFrame.width;
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return NS_OK;
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}
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nscoord xMax, yMax;
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rv = scrollView->GetContainerSize(&xMax, &yMax);
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*aScrollWidth = nsPresContext::AppUnitsToIntCSSPixels(xMax);
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return rv;
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}
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nsRect
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nsNSElementTearoff::GetClientAreaRect()
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{
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nsIScrollableView *scrollView;
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nsIFrame *frame;
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// it isn't clear what to return for SVG nodes, so just return 0
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if (mContent->IsNodeOfType(nsINode::eSVG))
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return nsRect(0, 0, 0, 0);
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GetScrollInfo(&scrollView, &frame);
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if (scrollView) {
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return scrollView->View()->GetBounds();
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}
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if (frame &&
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(frame->GetStyleDisplay()->mDisplay != NS_STYLE_DISPLAY_INLINE ||
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frame->IsFrameOfType(nsIFrame::eReplaced))) {
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// Special case code to make client area work even when there isn't
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// a scroll view, see bug 180552, bug 227567.
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return frame->GetPaddingRect() - frame->GetPositionIgnoringScrolling();
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}
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return nsRect(0, 0, 0, 0);
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}
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nsresult
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nsNSElementTearoff::GetClientTop(PRInt32* aLength)
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{
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NS_ENSURE_ARG_POINTER(aLength);
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*aLength = nsPresContext::AppUnitsToIntCSSPixels(GetClientAreaRect().y);
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return NS_OK;
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}
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nsresult
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nsNSElementTearoff::GetClientLeft(PRInt32* aLength)
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{
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NS_ENSURE_ARG_POINTER(aLength);
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*aLength = nsPresContext::AppUnitsToIntCSSPixels(GetClientAreaRect().x);
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return NS_OK;
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}
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nsresult
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nsNSElementTearoff::GetClientHeight(PRInt32* aLength)
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{
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NS_ENSURE_ARG_POINTER(aLength);
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*aLength = nsPresContext::AppUnitsToIntCSSPixels(GetClientAreaRect().height);
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return NS_OK;
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}
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nsresult
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nsNSElementTearoff::GetClientWidth(PRInt32* aLength)
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{
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NS_ENSURE_ARG_POINTER(aLength);
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*aLength = nsPresContext::AppUnitsToIntCSSPixels(GetClientAreaRect().width);
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return NS_OK;
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}
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static nsIFrame*
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GetContainingBlockForClientRect(nsIFrame* aFrame)
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{
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