Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 577 insertions, 0 deletions

diff --git a/widget/nsNativeTheme.cpp b/widget/nsNativeTheme.cpp
new file mode 100644
index 0000000000..cfc57cd5f0
--- /dev/null
+++ b/widget/nsNativeTheme.cpp
@@ -0,0 +1,577 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsNativeTheme.h"
+#include "nsIWidget.h"
+#include "mozilla/dom/Document.h"
+#include "nsIContent.h"
+#include "nsIFrame.h"
+#include "nsIScrollableFrame.h"
+#include "nsLayoutUtils.h"
+#include "nsNumberControlFrame.h"
+#include "nsPresContext.h"
+#include "nsString.h"
+#include "nsNameSpaceManager.h"
+#include "nsStyleConsts.h"
+#include "nsPIDOMWindow.h"
+#include "nsProgressFrame.h"
+#include "nsMeterFrame.h"
+#include "nsRangeFrame.h"
+#include "nsCSSRendering.h"
+#include "ImageContainer.h"
+#include "mozilla/ComputedStyle.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/HTMLBodyElement.h"
+#include "mozilla/dom/HTMLInputElement.h"
+#include "mozilla/dom/HTMLProgressElement.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/StaticPrefs_layout.h"
+#include "mozilla/dom/DocumentInlines.h"
+#include <algorithm>
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+nsNativeTheme::nsNativeTheme() : mAnimatedContentTimeout(UINT32_MAX) {}
+
+NS_IMPL_ISUPPORTS(nsNativeTheme, nsITimerCallback, nsINamed)
+
+/* static */ ElementState nsNativeTheme::GetContentState(
+    nsIFrame* aFrame, StyleAppearance aAppearance) {
+  if (!aFrame) {
+    return ElementState();
+  }
+
+  nsIContent* frameContent = aFrame->GetContent();
+  if (!frameContent || !frameContent->IsElement()) {
+    return ElementState();
+  }
+
+  const bool isXULElement = frameContent->IsXULElement();
+  if (isXULElement) {
+    if (aAppearance == StyleAppearance::CheckboxLabel ||
+        aAppearance == StyleAppearance::RadioLabel) {
+      aFrame = aFrame->GetParent()->GetParent();
+      frameContent = aFrame->GetContent();
+    } else if (aAppearance == StyleAppearance::Checkbox ||
+               aAppearance == StyleAppearance::Radio ||
+               aAppearance == StyleAppearance::ToolbarbuttonDropdown ||
+               aAppearance == StyleAppearance::Treeheadersortarrow ||
+               aAppearance == StyleAppearance::ButtonArrowPrevious ||
+               aAppearance == StyleAppearance::ButtonArrowNext ||
+               aAppearance == StyleAppearance::ButtonArrowUp ||
+               aAppearance == StyleAppearance::ButtonArrowDown) {
+      aFrame = aFrame->GetParent();
+      frameContent = aFrame->GetContent();
+    }
+    MOZ_ASSERT(frameContent && frameContent->IsElement());
+  }
+
+  ElementState flags = frameContent->AsElement()->StyleState();
+  nsNumberControlFrame* numberControlFrame =
+      nsNumberControlFrame::GetNumberControlFrameForSpinButton(aFrame);
+  if (numberControlFrame &&
+      numberControlFrame->GetContent()->AsElement()->StyleState().HasState(
+          ElementState::DISABLED)) {
+    flags |= ElementState::DISABLED;
+  }
+
+  if (!isXULElement) {
+    return flags;
+  }
+
+  if (CheckBooleanAttr(aFrame, nsGkAtoms::disabled)) {
+    flags |= ElementState::DISABLED;
+  }
+
+  switch (aAppearance) {
+    case StyleAppearance::RadioLabel:
+    case StyleAppearance::Radio: {
+      if (CheckBooleanAttr(aFrame, nsGkAtoms::focused)) {
+        flags |= ElementState::FOCUS;
+        nsPIDOMWindowOuter* window =
+            aFrame->GetContent()->OwnerDoc()->GetWindow();
+        if (window && window->ShouldShowFocusRing()) {
+          flags |= ElementState::FOCUSRING;
+        }
+      }
+      if (CheckBooleanAttr(aFrame, nsGkAtoms::selected) ||
+          CheckBooleanAttr(aFrame, nsGkAtoms::checked)) {
+        flags |= ElementState::CHECKED;
+      }
+      break;
+    }
+    case StyleAppearance::CheckboxLabel:
+    case StyleAppearance::Checkbox: {
+      if (CheckBooleanAttr(aFrame, nsGkAtoms::checked)) {
+        flags |= ElementState::CHECKED;
+      } else if (CheckBooleanAttr(aFrame, nsGkAtoms::indeterminate)) {
+        flags |= ElementState::INDETERMINATE;
+      }
+      break;
+    }
+    case StyleAppearance::MenulistButton:
+    case StyleAppearance::Menulist:
+    case StyleAppearance::NumberInput:
+    case StyleAppearance::Textfield:
+    case StyleAppearance::Searchfield:
+    case StyleAppearance::Textarea: {
+      if (CheckBooleanAttr(aFrame, nsGkAtoms::focused)) {
+        flags |= ElementState::FOCUS | ElementState::FOCUSRING;
+      }
+      break;
+    }
+    default:
+      break;
+  }
+
+  return flags;
+}
+
+/* static */
+bool nsNativeTheme::CheckBooleanAttr(nsIFrame* aFrame, nsAtom* aAtom) {
+  if (!aFrame) return false;
+
+  nsIContent* content = aFrame->GetContent();
+  if (!content || !content->IsElement()) return false;
+
+  if (content->IsHTMLElement())
+    return content->AsElement()->HasAttr(kNameSpaceID_None, aAtom);
+
+  // For XML/XUL elements, an attribute must be equal to the literal
+  // string "true" to be counted as true.  An empty string should _not_
+  // be counted as true.
+  return content->AsElement()->AttrValueIs(kNameSpaceID_None, aAtom, u"true"_ns,
+                                           eCaseMatters);
+}
+
+/* static */
+int32_t nsNativeTheme::CheckIntAttr(nsIFrame* aFrame, nsAtom* aAtom,
+                                    int32_t defaultValue) {
+  if (!aFrame) return defaultValue;
+
+  nsIContent* content = aFrame->GetContent();
+  if (!content || !content->IsElement()) return defaultValue;
+
+  nsAutoString attr;
+  content->AsElement()->GetAttr(kNameSpaceID_None, aAtom, attr);
+  nsresult err;
+  int32_t value = attr.ToInteger(&err);
+  if (attr.IsEmpty() || NS_FAILED(err)) return defaultValue;
+
+  return value;
+}
+
+/* static */
+double nsNativeTheme::GetProgressValue(nsIFrame* aFrame) {
+  if (!aFrame || !aFrame->GetContent()->IsHTMLElement(nsGkAtoms::progress)) {
+    return 0;
+  }
+
+  return static_cast<HTMLProgressElement*>(aFrame->GetContent())->Value();
+}
+
+/* static */
+double nsNativeTheme::GetProgressMaxValue(nsIFrame* aFrame) {
+  if (!aFrame || !aFrame->GetContent()->IsHTMLElement(nsGkAtoms::progress)) {
+    return 100;
+  }
+
+  return static_cast<HTMLProgressElement*>(aFrame->GetContent())->Max();
+}
+
+bool nsNativeTheme::IsButtonTypeMenu(nsIFrame* aFrame) {
+  if (!aFrame) return false;
+
+  nsIContent* content = aFrame->GetContent();
+  return content->IsXULElement(nsGkAtoms::button) &&
+         content->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
+                                           u"menu"_ns, eCaseMatters);
+}
+
+bool nsNativeTheme::IsPressedButton(nsIFrame* aFrame) {
+  ElementState state = GetContentState(aFrame, StyleAppearance::Toolbarbutton);
+  if (state.HasState(ElementState::DISABLED)) {
+    return false;
+  }
+
+  return IsOpenButton(aFrame) ||
+         state.HasAllStates(ElementState::ACTIVE | ElementState::HOVER);
+}
+
+bool nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext,
+                                   nsIFrame* aFrame,
+                                   StyleAppearance aAppearance) {
+  // Check for specific widgets to see if HTML has overridden the style.
+  if (!aFrame) {
+    return false;
+  }
+
+  /**
+   * Progress bar appearance should be the same for the bar and the container
+   * frame. nsProgressFrame owns the logic and will tell us what we should do.
+   */
+  if (aAppearance == StyleAppearance::Progresschunk ||
+      aAppearance == StyleAppearance::ProgressBar) {
+    nsProgressFrame* progressFrame = do_QueryFrame(
+        aAppearance == StyleAppearance::Progresschunk ? aFrame->GetParent()
+                                                      : aFrame);
+    if (progressFrame) {
+      return !progressFrame->ShouldUseNativeStyle();
+    }
+  }
+
+  /**
+   * Meter bar appearance should be the same for the bar and the container
+   * frame. nsMeterFrame owns the logic and will tell us what we should do.
+   */
+  if (aAppearance == StyleAppearance::Meterchunk ||
+      aAppearance == StyleAppearance::Meter) {
+    nsMeterFrame* meterFrame = do_QueryFrame(
+        aAppearance == StyleAppearance::Meterchunk ? aFrame->GetParent()
+                                                   : aFrame);
+    if (meterFrame) {
+      return !meterFrame->ShouldUseNativeStyle();
+    }
+  }
+
+  /**
+   * An nsRangeFrame and its children are treated atomically when it
+   * comes to native theming (either all parts, or no parts, are themed).
+   * nsRangeFrame owns the logic and will tell us what we should do.
+   */
+  if (aAppearance == StyleAppearance::Range ||
+      aAppearance == StyleAppearance::RangeThumb) {
+    nsRangeFrame* rangeFrame = do_QueryFrame(
+        aAppearance == StyleAppearance::RangeThumb ? aFrame->GetParent()
+                                                   : aFrame);
+    if (rangeFrame) {
+      return !rangeFrame->ShouldUseNativeStyle();
+    }
+  }
+
+  return nsLayoutUtils::AuthorSpecifiedBorderBackgroundDisablesTheming(
+             aAppearance) &&
+         aFrame->GetContent()->IsHTMLElement() &&
+         aFrame->Style()->HasAuthorSpecifiedBorderOrBackground();
+}
+
+/* static */
+bool nsNativeTheme::IsFrameRTL(nsIFrame* aFrame) {
+  if (!aFrame) {
+    return false;
+  }
+  return aFrame->GetWritingMode().IsPhysicalRTL();
+}
+
+/* static */
+bool nsNativeTheme::IsHTMLContent(nsIFrame* aFrame) {
+  if (!aFrame) {
+    return false;
+  }
+  nsIContent* content = aFrame->GetContent();
+  return content && content->IsHTMLElement();
+}
+
+// treeheadercell:
+nsNativeTheme::TreeSortDirection nsNativeTheme::GetTreeSortDirection(
+    nsIFrame* aFrame) {
+  if (!aFrame || !aFrame->GetContent()) return eTreeSortDirection_Natural;
+
+  static Element::AttrValuesArray strings[] = {nsGkAtoms::descending,
+                                               nsGkAtoms::ascending, nullptr};
+
+  nsIContent* content = aFrame->GetContent();
+  if (content->IsElement()) {
+    switch (content->AsElement()->FindAttrValueIn(
+        kNameSpaceID_None, nsGkAtoms::sortDirection, strings, eCaseMatters)) {
+      case 0:
+        return eTreeSortDirection_Descending;
+      case 1:
+        return eTreeSortDirection_Ascending;
+    }
+  }
+
+  return eTreeSortDirection_Natural;
+}
+
+bool nsNativeTheme::IsLastTreeHeaderCell(nsIFrame* aFrame) {
+  if (!aFrame) {
+    return false;
+  }
+
+  // A tree column picker button is always the last header cell.
+  if (aFrame->GetContent()->IsXULElement(nsGkAtoms::button)) {
+    return true;
+  }
+
+  // Find the parent tree.
+  nsIContent* parent = aFrame->GetContent()->GetParent();
+  while (parent && !parent->IsXULElement(nsGkAtoms::tree)) {
+    parent = parent->GetParent();
+  }
+
+  // If the column picker is visible, this can't be the last column.
+  if (parent && !parent->AsElement()->AttrValueIs(kNameSpaceID_None,
+                                                  nsGkAtoms::hidecolumnpicker,
+                                                  u"true"_ns, eCaseMatters))
+    return false;
+
+  while ((aFrame = aFrame->GetNextSibling())) {
+    if (aFrame->GetRect().Width() > 0) return false;
+  }
+  return true;
+}
+
+// tab:
+bool nsNativeTheme::IsBottomTab(nsIFrame* aFrame) {
+  if (!aFrame) return false;
+
+  nsAutoString classStr;
+  if (aFrame->GetContent()->IsElement()) {
+    aFrame->GetContent()->AsElement()->GetAttr(kNameSpaceID_None,
+                                               nsGkAtoms::_class, classStr);
+  }
+  // FIXME: This looks bogus, shouldn't this be looking at GetClasses()?
+  return !classStr.IsEmpty() && classStr.Find(u"tab-bottom") != kNotFound;
+}
+
+bool nsNativeTheme::IsFirstTab(nsIFrame* aFrame) {
+  if (!aFrame) return false;
+
+  for (nsIFrame* first : aFrame->GetParent()->PrincipalChildList()) {
+    if (first->GetRect().Width() > 0 &&
+        first->GetContent()->IsXULElement(nsGkAtoms::tab))
+      return (first == aFrame);
+  }
+  return false;
+}
+
+bool nsNativeTheme::IsHorizontal(nsIFrame* aFrame) {
+  if (!aFrame) return false;
+
+  if (!aFrame->GetContent()->IsElement()) return true;
+
+  return !aFrame->GetContent()->AsElement()->AttrValueIs(
+      kNameSpaceID_None, nsGkAtoms::orient, nsGkAtoms::vertical, eCaseMatters);
+}
+
+bool nsNativeTheme::IsNextToSelectedTab(nsIFrame* aFrame, int32_t aOffset) {
+  if (!aFrame) return false;
+
+  if (aOffset == 0) return IsSelectedTab(aFrame);
+
+  int32_t thisTabIndex = -1, selectedTabIndex = -1;
+
+  nsIFrame* currentTab = aFrame->GetParent()->PrincipalChildList().FirstChild();
+  for (int32_t i = 0; currentTab; currentTab = currentTab->GetNextSibling()) {
+    if (currentTab->GetRect().Width() == 0) continue;
+    if (aFrame == currentTab) thisTabIndex = i;
+    if (IsSelectedTab(currentTab)) selectedTabIndex = i;
+    ++i;
+  }
+
+  if (thisTabIndex == -1 || selectedTabIndex == -1) return false;
+
+  return (thisTabIndex - selectedTabIndex == aOffset);
+}
+
+bool nsNativeTheme::IsVerticalProgress(nsIFrame* aFrame) {
+  if (!aFrame) {
+    return false;
+  }
+  return IsVerticalMeter(aFrame);
+}
+
+bool nsNativeTheme::IsVerticalMeter(nsIFrame* aFrame) {
+  MOZ_ASSERT(aFrame, "You have to pass a non-null aFrame");
+  switch (aFrame->StyleDisplay()->mOrient) {
+    case StyleOrient::Horizontal:
+      return false;
+    case StyleOrient::Vertical:
+      return true;
+    case StyleOrient::Inline:
+      return aFrame->GetWritingMode().IsVertical();
+    case StyleOrient::Block:
+      return !aFrame->GetWritingMode().IsVertical();
+  }
+  MOZ_ASSERT_UNREACHABLE("unexpected -moz-orient value");
+  return false;
+}
+
+// menupopup:
+bool nsNativeTheme::IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent) {
+  if (!aFrame) return false;
+
+  nsIContent* parentContent = aFrame->GetContent()->GetParent();
+  if (!parentContent || !parentContent->IsXULElement(nsGkAtoms::menu))
+    return false;
+
+  nsIFrame* parent = aFrame;
+  while ((parent = parent->GetParent())) {
+    if (parent->GetContent() == parentContent) {
+      if (aLeftOfParent) {
+        LayoutDeviceIntRect selfBounds, parentBounds;
+        selfBounds = aFrame->GetNearestWidget()->GetScreenBounds();
+        parentBounds = parent->GetNearestWidget()->GetScreenBounds();
+        *aLeftOfParent = selfBounds.X() < parentBounds.X();
+      }
+      return true;
+    }
+  }
+
+  return false;
+}
+
+bool nsNativeTheme::QueueAnimatedContentForRefresh(nsIContent* aContent,
+                                                   uint32_t aMinimumFrameRate) {
+  NS_ASSERTION(aContent, "Null pointer!");
+  NS_ASSERTION(aMinimumFrameRate, "aMinimumFrameRate must be non-zero!");
+  NS_ASSERTION(aMinimumFrameRate <= 1000,
+               "aMinimumFrameRate must be less than 1000!");
+
+  uint32_t timeout = 1000 / aMinimumFrameRate;
+  timeout = std::min(mAnimatedContentTimeout, timeout);
+
+  if (!mAnimatedContentTimer) {
+    mAnimatedContentTimer = NS_NewTimer();
+    NS_ENSURE_TRUE(mAnimatedContentTimer, false);
+  }
+
+  if (mAnimatedContentList.IsEmpty() || timeout != mAnimatedContentTimeout) {
+    nsresult rv;
+    if (!mAnimatedContentList.IsEmpty()) {
+      rv = mAnimatedContentTimer->Cancel();
+      NS_ENSURE_SUCCESS(rv, false);
+    }
+
+    if (XRE_IsContentProcess() && NS_IsMainThread()) {
+      mAnimatedContentTimer->SetTarget(
+          aContent->OwnerDoc()->EventTargetFor(TaskCategory::Other));
+    }
+    rv = mAnimatedContentTimer->InitWithCallback(this, timeout,
+                                                 nsITimer::TYPE_ONE_SHOT);
+    NS_ENSURE_SUCCESS(rv, false);
+
+    mAnimatedContentTimeout = timeout;
+  }
+
+  // XXX(Bug 1631371) Check if this should use a fallible operation as it
+  // pretended earlier.
+  mAnimatedContentList.AppendElement(aContent);
+
+  return true;
+}
+
+NS_IMETHODIMP
+nsNativeTheme::Notify(nsITimer* aTimer) {
+  NS_ASSERTION(aTimer == mAnimatedContentTimer, "Wrong timer!");
+
+  // XXX Assumes that calling nsIFrame::Invalidate won't reenter
+  //     QueueAnimatedContentForRefresh.
+
+  uint32_t count = mAnimatedContentList.Length();
+  for (uint32_t index = 0; index < count; index++) {
+    nsIFrame* frame = mAnimatedContentList[index]->GetPrimaryFrame();
+    if (frame) {
+      frame->InvalidateFrame();
+    }
+  }
+
+  mAnimatedContentList.Clear();
+  mAnimatedContentTimeout = UINT32_MAX;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNativeTheme::GetName(nsACString& aName) {
+  aName.AssignLiteral("nsNativeTheme");
+  return NS_OK;
+}
+
+nsIFrame* nsNativeTheme::GetAdjacentSiblingFrameWithSameAppearance(
+    nsIFrame* aFrame, bool aNextSibling) {
+  if (!aFrame) return nullptr;
+
+  // Find the next visible sibling.
+  nsIFrame* sibling = aFrame;
+  do {
+    sibling =
+        aNextSibling ? sibling->GetNextSibling() : sibling->GetPrevSibling();
+  } while (sibling && sibling->GetRect().Width() == 0);
+
+  // Check same appearance and adjacency.
+  if (!sibling ||
+      sibling->StyleDisplay()->EffectiveAppearance() !=
+          aFrame->StyleDisplay()->EffectiveAppearance() ||
+      (sibling->GetRect().XMost() != aFrame->GetRect().X() &&
+       aFrame->GetRect().XMost() != sibling->GetRect().X()))
+    return nullptr;
+  return sibling;
+}
+
+bool nsNativeTheme::IsRangeHorizontal(nsIFrame* aFrame) {
+  nsIFrame* rangeFrame = aFrame;
+  if (!rangeFrame->IsRangeFrame()) {
+    // If the thumb's frame is passed in, get its range parent:
+    rangeFrame = aFrame->GetParent();
+  }
+  if (rangeFrame->IsRangeFrame()) {
+    return static_cast<nsRangeFrame*>(rangeFrame)->IsHorizontal();
+  }
+  // Not actually a range frame - just use the ratio of the frame's size to
+  // decide:
+  return aFrame->GetSize().width >= aFrame->GetSize().height;
+}
+
+/* static */
+bool nsNativeTheme::IsDarkBackgroundForScrollbar(nsIFrame* aFrame) {
+  // Try to find the scrolled frame. Note that for stuff like xul <tree> there
+  // might be none.
+  {
+    nsIFrame* frame = aFrame;
+    nsIScrollableFrame* scrollFrame = nullptr;
+    while (!scrollFrame && frame) {
+      scrollFrame = frame->GetScrollTargetFrame();
+      frame = frame->GetParent();
+    }
+    if (scrollFrame) {
+      aFrame = scrollFrame->GetScrolledFrame();
+    } else {
+      // Leave aFrame untouched.
+    }
+  }
+
+  return IsDarkBackground(aFrame);
+}
+
+/* static */
+bool nsNativeTheme::IsDarkBackground(nsIFrame* aFrame) {
+  auto color =
+      nsCSSRendering::FindEffectiveBackgroundColor(
+          aFrame, /* aStopAtThemed = */ false, /* aPreferBodyToCanvas = */ true)
+          .mColor;
+  return LookAndFeel::IsDarkColor(color);
+}
+
+/*static*/
+bool nsNativeTheme::IsWidgetScrollbarPart(StyleAppearance aAppearance) {
+  switch (aAppearance) {
+    case StyleAppearance::ScrollbarVertical:
+    case StyleAppearance::ScrollbarHorizontal:
+    case StyleAppearance::ScrollbarbuttonUp:
+    case StyleAppearance::ScrollbarbuttonDown:
+    case StyleAppearance::ScrollbarbuttonLeft:
+    case StyleAppearance::ScrollbarbuttonRight:
+    case StyleAppearance::ScrollbarthumbVertical:
+    case StyleAppearance::ScrollbarthumbHorizontal:
+    case StyleAppearance::ScrollbartrackHorizontal:
+    case StyleAppearance::ScrollbartrackVertical:
+    case StyleAppearance::Scrollcorner:
+      return true;
+    default:
+      return false;
+  }
+}