mirror of
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a25126cd0d
Differential Revision: https://phabricator.services.mozilla.com/D60857 --HG-- extra : moz-landing-system : lando
177 lines
5.3 KiB
C++
177 lines
5.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsTreeColFrame.h"
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#include "mozilla/ComputedStyle.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/dom/XULTreeElement.h"
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#include "nsCOMPtr.h"
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#include "nsGkAtoms.h"
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#include "nsIContent.h"
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#include "nsNameSpaceManager.h"
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#include "nsTreeColumns.h"
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#include "nsDisplayList.h"
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#include "nsTreeBodyFrame.h"
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#include "nsXULElement.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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//
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// NS_NewTreeColFrame
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//
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// Creates a new col frame
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//
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nsIFrame* NS_NewTreeColFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
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return new (aPresShell) nsTreeColFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsTreeColFrame)
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// Destructor
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nsTreeColFrame::~nsTreeColFrame() {}
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void nsTreeColFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
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InvalidateColumns();
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}
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void nsTreeColFrame::DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) {
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InvalidateColumns(false);
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nsBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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}
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class nsDisplayXULTreeColSplitterTarget final : public nsDisplayItem {
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public:
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nsDisplayXULTreeColSplitterTarget(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame)
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: nsDisplayItem(aBuilder, aFrame) {
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MOZ_COUNT_CTOR(nsDisplayXULTreeColSplitterTarget);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayXULTreeColSplitterTarget() {
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MOZ_COUNT_DTOR(nsDisplayXULTreeColSplitterTarget);
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}
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#endif
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virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
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HitTestState* aState,
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nsTArray<nsIFrame*>* aOutFrames) override;
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NS_DISPLAY_DECL_NAME("XULTreeColSplitterTarget",
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TYPE_XUL_TREE_COL_SPLITTER_TARGET)
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};
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void nsDisplayXULTreeColSplitterTarget::HitTest(
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nsDisplayListBuilder* aBuilder, const nsRect& aRect, HitTestState* aState,
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nsTArray<nsIFrame*>* aOutFrames) {
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nsRect rect = aRect - ToReferenceFrame();
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// If we are in either in the first 4 pixels or the last 4 pixels, we're going
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// to do something really strange. Check for an adjacent splitter.
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bool left = false;
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bool right = false;
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if (mFrame->GetSize().width - nsPresContext::CSSPixelsToAppUnits(4) <=
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rect.XMost()) {
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right = true;
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} else if (nsPresContext::CSSPixelsToAppUnits(4) > rect.x) {
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left = true;
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}
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// Swap left and right for RTL trees in order to find the correct splitter
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if (mFrame->StyleVisibility()->mDirection == StyleDirection::Rtl) {
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bool tmp = left;
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left = right;
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right = tmp;
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}
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if (left || right) {
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// We are a header. Look for the correct splitter.
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nsIFrame* child;
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if (left)
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child = mFrame->GetPrevSibling();
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else
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child = mFrame->GetNextSibling();
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if (child && child->GetContent()->NodeInfo()->Equals(nsGkAtoms::splitter,
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kNameSpaceID_XUL)) {
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aOutFrames->AppendElement(child);
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}
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}
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}
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void nsTreeColFrame::BuildDisplayListForChildren(
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nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) {
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if (!aBuilder->IsForEventDelivery()) {
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nsBoxFrame::BuildDisplayListForChildren(aBuilder, aLists);
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return;
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}
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nsDisplayListCollection set(aBuilder);
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nsBoxFrame::BuildDisplayListForChildren(aBuilder, set);
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WrapListsInRedirector(aBuilder, set, aLists);
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aLists.Content()->AppendNewToTop<nsDisplayXULTreeColSplitterTarget>(aBuilder,
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this);
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}
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nsresult nsTreeColFrame::AttributeChanged(int32_t aNameSpaceID,
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nsAtom* aAttribute,
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int32_t aModType) {
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nsresult rv =
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nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
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if (aAttribute == nsGkAtoms::primary) {
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InvalidateColumns();
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}
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return rv;
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}
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void nsTreeColFrame::SetXULBounds(nsBoxLayoutState& aBoxLayoutState,
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const nsRect& aRect,
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bool aRemoveOverflowArea) {
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nscoord oldWidth = mRect.width;
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nsBoxFrame::SetXULBounds(aBoxLayoutState, aRect, aRemoveOverflowArea);
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if (mRect.width != oldWidth) {
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RefPtr<XULTreeElement> tree = GetTree();
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if (tree) {
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tree->Invalidate();
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}
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}
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}
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XULTreeElement* nsTreeColFrame::GetTree() {
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nsIContent* parent = mContent->GetParent();
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return parent ? XULTreeElement::FromNodeOrNull(parent->GetParent()) : nullptr;
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}
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void nsTreeColFrame::InvalidateColumns(bool aCanWalkFrameTree) {
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RefPtr<XULTreeElement> tree = GetTree();
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if (!tree) {
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return;
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}
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nsTreeBodyFrame* body = aCanWalkFrameTree
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? tree->GetTreeBodyFrame(FlushType::None)
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: tree->GetCachedTreeBodyFrame();
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if (!body) {
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return;
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}
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RefPtr<nsTreeColumns> columns = body->Columns();
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if (!columns) {
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return;
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}
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columns->InvalidateColumns();
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}
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