Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 461 insertions, 0 deletions

diff --git a/layout/xul/tree/nsTreeColumns.cpp b/layout/xul/tree/nsTreeColumns.cpp
new file mode 100644
index 0000000000..baf711c9aa
--- /dev/null
+++ b/layout/xul/tree/nsTreeColumns.cpp
@@ -0,0 +1,461 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsNameSpaceManager.h"
+#include "nsGkAtoms.h"
+#include "nsTreeColumns.h"
+#include "nsTreeUtils.h"
+#include "mozilla/ComputedStyle.h"
+#include "nsContentUtils.h"
+#include "nsTreeBodyFrame.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/CSSOrderAwareFrameIterator.h"
+#include "mozilla/dom/TreeColumnBinding.h"
+#include "mozilla/dom/TreeColumnsBinding.h"
+#include "mozilla/dom/XULTreeElement.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+// Column class that caches all the info about our column.
+nsTreeColumn::nsTreeColumn(nsTreeColumns* aColumns, dom::Element* aElement)
+    : mContent(aElement), mColumns(aColumns), mIndex(0), mPrevious(nullptr) {
+  NS_ASSERTION(aElement && aElement->NodeInfo()->Equals(nsGkAtoms::treecol,
+                                                        kNameSpaceID_XUL),
+               "nsTreeColumn's content must be a <xul:treecol>");
+
+  Invalidate(IgnoreErrors());
+}
+
+nsTreeColumn::~nsTreeColumn() {
+  if (mNext) {
+    mNext->SetPrevious(nullptr);
+  }
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(nsTreeColumn)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsTreeColumn)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mContent)
+  if (tmp->mNext) {
+    tmp->mNext->SetPrevious(nullptr);
+    NS_IMPL_CYCLE_COLLECTION_UNLINK(mNext)
+  }
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsTreeColumn)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mContent)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mNext)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(nsTreeColumn)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsTreeColumn)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsTreeColumn)
+
+// QueryInterface implementation for nsTreeColumn
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsTreeColumn)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+  NS_INTERFACE_MAP_ENTRY_CONCRETE(nsTreeColumn)
+NS_INTERFACE_MAP_END
+
+nsIFrame* nsTreeColumn::GetFrame() { return mContent->GetPrimaryFrame(); }
+
+bool nsTreeColumn::IsLastVisible(nsTreeBodyFrame* aBodyFrame) {
+  NS_ASSERTION(GetFrame(), "should have checked for this already");
+
+  // cyclers are fixed width, don't adjust them
+  if (IsCycler()) return false;
+
+  // we're certainly not the last visible if we're not visible
+  if (GetFrame()->GetRect().width == 0) return false;
+
+  // try to find a visible successor
+  for (nsTreeColumn* next = GetNext(); next; next = next->GetNext()) {
+    nsIFrame* frame = next->GetFrame();
+    if (frame && frame->GetRect().width > 0) return false;
+  }
+  return true;
+}
+
+nsresult nsTreeColumn::GetRect(nsTreeBodyFrame* aBodyFrame, nscoord aY,
+                               nscoord aHeight, nsRect* aResult) {
+  nsIFrame* frame = GetFrame();
+  if (!frame) {
+    *aResult = nsRect();
+    return NS_ERROR_FAILURE;
+  }
+
+  bool isRTL = aBodyFrame->StyleVisibility()->mDirection == StyleDirection::Rtl;
+  *aResult = frame->GetRect();
+  aResult->y = aY;
+  aResult->height = aHeight;
+  if (isRTL)
+    aResult->x += aBodyFrame->mAdjustWidth;
+  else if (IsLastVisible(aBodyFrame))
+    aResult->width += aBodyFrame->mAdjustWidth;
+  return NS_OK;
+}
+
+nsresult nsTreeColumn::GetXInTwips(nsTreeBodyFrame* aBodyFrame,
+                                   nscoord* aResult) {
+  nsIFrame* frame = GetFrame();
+  if (!frame) {
+    *aResult = 0;
+    return NS_ERROR_FAILURE;
+  }
+  *aResult = frame->GetRect().x;
+  return NS_OK;
+}
+
+nsresult nsTreeColumn::GetWidthInTwips(nsTreeBodyFrame* aBodyFrame,
+                                       nscoord* aResult) {
+  nsIFrame* frame = GetFrame();
+  if (!frame) {
+    *aResult = 0;
+    return NS_ERROR_FAILURE;
+  }
+  *aResult = frame->GetRect().width;
+  if (IsLastVisible(aBodyFrame)) *aResult += aBodyFrame->mAdjustWidth;
+  return NS_OK;
+}
+
+void nsTreeColumn::GetId(nsAString& aId) const { aId = GetId(); }
+
+void nsTreeColumn::Invalidate(ErrorResult& aRv) {
+  nsIFrame* frame = GetFrame();
+  if (NS_WARN_IF(!frame)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return;
+  }
+
+  // Fetch the Id.
+  mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::id, mId);
+
+  // If we have an Id, cache the Id as an atom.
+  if (!mId.IsEmpty()) {
+    mAtom = NS_Atomize(mId);
+  }
+
+  // Cache our index.
+  nsTreeUtils::GetColumnIndex(mContent, &mIndex);
+
+  const nsStyleVisibility* vis = frame->StyleVisibility();
+
+  // Cache our text alignment policy.
+  const nsStyleText* textStyle = frame->StyleText();
+
+  mTextAlignment = textStyle->mTextAlign;
+  // START or END alignment sometimes means RIGHT
+  if ((mTextAlignment == StyleTextAlign::Start &&
+       vis->mDirection == StyleDirection::Rtl) ||
+      (mTextAlignment == StyleTextAlign::End &&
+       vis->mDirection == StyleDirection::Ltr)) {
+    mTextAlignment = StyleTextAlign::Right;
+  } else if (mTextAlignment == StyleTextAlign::Start ||
+             mTextAlignment == StyleTextAlign::End) {
+    mTextAlignment = StyleTextAlign::Left;
+  }
+
+  // Figure out if we're the primary column (that has to have indentation
+  // and twisties drawn.
+  mIsPrimary = mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::primary,
+                                     nsGkAtoms::_true, eCaseMatters);
+
+  // Figure out if we're a cycling column (one that doesn't cause a selection
+  // to happen).
+  mIsCycler = mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::cycler,
+                                    nsGkAtoms::_true, eCaseMatters);
+
+  mIsEditable = mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::editable,
+                                      nsGkAtoms::_true, eCaseMatters);
+
+  mOverflow = mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::overflow,
+                                    nsGkAtoms::_true, eCaseMatters);
+
+  // Figure out our column type. Default type is text.
+  mType = TreeColumn_Binding::TYPE_TEXT;
+  static Element::AttrValuesArray typestrings[] = {nsGkAtoms::checkbox,
+                                                   nullptr};
+  switch (mContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::type,
+                                    typestrings, eCaseMatters)) {
+    case 0:
+      mType = TreeColumn_Binding::TYPE_CHECKBOX;
+      break;
+  }
+
+  // Fetch the crop style.
+  mCropStyle = 0;
+  static Element::AttrValuesArray cropstrings[] = {
+      nsGkAtoms::center, nsGkAtoms::left, nsGkAtoms::start, nullptr};
+  switch (mContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::crop,
+                                    cropstrings, eCaseMatters)) {
+    case 0:
+      mCropStyle = 1;
+      break;
+    case 1:
+    case 2:
+      mCropStyle = 2;
+      break;
+  }
+}
+
+nsIContent* nsTreeColumn::GetParentObject() const { return mContent; }
+
+/* virtual */
+JSObject* nsTreeColumn::WrapObject(JSContext* aCx,
+                                   JS::Handle<JSObject*> aGivenProto) {
+  return dom::TreeColumn_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+Element* nsTreeColumn::Element() { return mContent; }
+
+int32_t nsTreeColumn::GetX(mozilla::ErrorResult& aRv) {
+  nsIFrame* frame = GetFrame();
+  if (NS_WARN_IF(!frame)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return 0;
+  }
+
+  return nsPresContext::AppUnitsToIntCSSPixels(frame->GetRect().x);
+}
+
+int32_t nsTreeColumn::GetWidth(mozilla::ErrorResult& aRv) {
+  nsIFrame* frame = GetFrame();
+  if (NS_WARN_IF(!frame)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return 0;
+  }
+
+  return nsPresContext::AppUnitsToIntCSSPixels(frame->GetRect().width);
+}
+
+already_AddRefed<nsTreeColumn> nsTreeColumn::GetPreviousColumn() {
+  return do_AddRef(mPrevious);
+}
+
+nsTreeColumns::nsTreeColumns(nsTreeBodyFrame* aTree) : mTree(aTree) {}
+
+nsTreeColumns::~nsTreeColumns() { nsTreeColumns::InvalidateColumns(); }
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(nsTreeColumns)
+
+// QueryInterface implementation for nsTreeColumns
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsTreeColumns)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsTreeColumns)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsTreeColumns)
+
+nsIContent* nsTreeColumns::GetParentObject() const {
+  return mTree ? mTree->GetBaseElement() : nullptr;
+}
+
+/* virtual */
+JSObject* nsTreeColumns::WrapObject(JSContext* aCx,
+                                    JS::Handle<JSObject*> aGivenProto) {
+  return dom::TreeColumns_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+XULTreeElement* nsTreeColumns::GetTree() const {
+  if (!mTree) {
+    return nullptr;
+  }
+
+  return XULTreeElement::FromNodeOrNull(mTree->GetBaseElement());
+}
+
+uint32_t nsTreeColumns::Count() {
+  EnsureColumns();
+  uint32_t count = 0;
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    ++count;
+  }
+  return count;
+}
+
+nsTreeColumn* nsTreeColumns::GetLastColumn() {
+  EnsureColumns();
+  nsTreeColumn* currCol = mFirstColumn;
+  while (currCol) {
+    nsTreeColumn* next = currCol->GetNext();
+    if (!next) {
+      return currCol;
+    }
+    currCol = next;
+  }
+  return nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::GetSortedColumn() {
+  EnsureColumns();
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    if (nsContentUtils::HasNonEmptyAttr(currCol->mContent, kNameSpaceID_None,
+                                        nsGkAtoms::sortDirection)) {
+      return currCol;
+    }
+  }
+  return nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::GetKeyColumn() {
+  EnsureColumns();
+
+  nsTreeColumn* first = nullptr;
+  nsTreeColumn* primary = nullptr;
+  nsTreeColumn* sorted = nullptr;
+
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    // Skip hidden columns.
+    if (currCol->mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::hidden,
+                                       nsGkAtoms::_true, eCaseMatters))
+      continue;
+
+    // Skip non-text column
+    if (currCol->GetType() != TreeColumn_Binding::TYPE_TEXT) continue;
+
+    if (!first) first = currCol;
+
+    if (nsContentUtils::HasNonEmptyAttr(currCol->mContent, kNameSpaceID_None,
+                                        nsGkAtoms::sortDirection)) {
+      // Use sorted column as the key.
+      sorted = currCol;
+      break;
+    }
+
+    if (currCol->IsPrimary())
+      if (!primary) primary = currCol;
+  }
+
+  if (sorted) return sorted;
+  if (primary) return primary;
+  return first;
+}
+
+nsTreeColumn* nsTreeColumns::GetColumnFor(dom::Element* aElement) {
+  EnsureColumns();
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    if (currCol->mContent == aElement) {
+      return currCol;
+    }
+  }
+  return nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::NamedGetter(const nsAString& aId, bool& aFound) {
+  EnsureColumns();
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    if (currCol->GetId().Equals(aId)) {
+      aFound = true;
+      return currCol;
+    }
+  }
+  aFound = false;
+  return nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::GetNamedColumn(const nsAString& aId) {
+  bool dummy;
+  return NamedGetter(aId, dummy);
+}
+
+void nsTreeColumns::GetSupportedNames(nsTArray<nsString>& aNames) {
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    aNames.AppendElement(currCol->GetId());
+  }
+}
+
+nsTreeColumn* nsTreeColumns::IndexedGetter(uint32_t aIndex, bool& aFound) {
+  EnsureColumns();
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    if (currCol->GetIndex() == static_cast<int32_t>(aIndex)) {
+      aFound = true;
+      return currCol;
+    }
+  }
+  aFound = false;
+  return nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::GetColumnAt(uint32_t aIndex) {
+  bool dummy;
+  return IndexedGetter(aIndex, dummy);
+}
+
+void nsTreeColumns::InvalidateColumns() {
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    currCol->SetColumns(nullptr);
+  }
+  mFirstColumn = nullptr;
+}
+
+nsTreeColumn* nsTreeColumns::GetPrimaryColumn() {
+  EnsureColumns();
+  for (nsTreeColumn* currCol = mFirstColumn; currCol;
+       currCol = currCol->GetNext()) {
+    if (currCol->IsPrimary()) {
+      return currCol;
+    }
+  }
+  return nullptr;
+}
+
+void nsTreeColumns::EnsureColumns() {
+  if (mTree && !mFirstColumn) {
+    nsIContent* treeContent = mTree->GetBaseElement();
+    if (!treeContent) return;
+
+    nsIContent* colsContent =
+        nsTreeUtils::GetDescendantChild(treeContent, nsGkAtoms::treecols);
+    if (!colsContent) return;
+
+    nsIContent* colContent =
+        nsTreeUtils::GetDescendantChild(colsContent, nsGkAtoms::treecol);
+    if (!colContent) return;
+
+    nsIFrame* colFrame = colContent->GetPrimaryFrame();
+    if (!colFrame) return;
+
+    colFrame = colFrame->GetParent();
+    if (!colFrame) return;
+
+    nsTreeColumn* currCol = nullptr;
+
+    // Enumerate the columns in visible order
+    CSSOrderAwareFrameIterator iter(
+        colFrame, mozilla::layout::kPrincipalList,
+        CSSOrderAwareFrameIterator::ChildFilter::IncludeAll,
+        CSSOrderAwareFrameIterator::OrderState::Unknown,
+        CSSOrderAwareFrameIterator::OrderingProperty::BoxOrdinalGroup);
+    for (; !iter.AtEnd(); iter.Next()) {
+      nsIFrame* colFrame = iter.get();
+      nsIContent* colContent = colFrame->GetContent();
+      if (!colContent->IsXULElement(nsGkAtoms::treecol)) {
+        continue;
+      }
+      // Create a new column structure.
+      nsTreeColumn* col = new nsTreeColumn(this, colContent->AsElement());
+
+      if (currCol) {
+        currCol->SetNext(col);
+        col->SetPrevious(currCol);
+      } else {
+        mFirstColumn = col;
+      }
+      currCol = col;
+    }
+  }
+}