summaryrefslogtreecommitdiffstats
path: root/widget/nsNativeTheme.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--widget/nsNativeTheme.cpp577
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;
+ }
+}