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/* -*- 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,
*/
#ifndef mozilla_dom_InspectorUtils_h
#define mozilla_dom_InspectorUtils_h
#include "mozilla/dom/InspectorUtilsBinding.h"
#include "mozilla/UniquePtr.h"
#include "nsLayoutUtils.h"
class nsAtom;
class nsINode;
class nsINodeList;
class nsRange;
namespace mozilla {
class StyleSheet;
namespace css {
class Rule;
} // namespace css
namespace dom {
class CharacterData;
class Document;
class Element;
class InspectorFontFace;
} // namespace dom
} // namespace mozilla
namespace mozilla::dom {
class CSSStyleRule;
/**
* A collection of utility methods for use by devtools.
*/
class InspectorUtils {
public:
static void GetAllStyleSheets(GlobalObject& aGlobal, Document& aDocument,
bool aDocumentOnly,
nsTArray<RefPtr<StyleSheet>>& aResult);
static void GetCSSStyleRules(GlobalObject& aGlobal, Element& aElement,
const nsAString& aPseudo,
bool aIncludeVisitedStyle,
nsTArray<RefPtr<CSSStyleRule>>& aResult);
/**
* Get the line number of a rule.
*
* @param aRule The rule.
* @return The rule's line number. Line numbers are 1-based.
*/
static uint32_t GetRuleLine(GlobalObject& aGlobal, css::Rule& aRule);
/**
* Get the column number of a rule.
*
* @param aRule The rule.
* @return The rule's column number. Column numbers are 1-based.
*/
static uint32_t GetRuleColumn(GlobalObject& aGlobal, css::Rule& aRule);
/**
* Like getRuleLine, but if the rule is in a <style> element,
* returns a line number relative to the start of the element.
*
* @param aRule the rule to examine
* @return the line number of the rule, possibly relative to the
* <style> element
*/
static uint32_t GetRelativeRuleLine(GlobalObject& aGlobal, css::Rule& aRule);
static void GetRuleIndex(GlobalObject& aGlobal, css::Rule& aRule,
nsTArray<uint32_t>& aResult);
static bool HasRulesModifiedByCSSOM(GlobalObject& aGlobal,
StyleSheet& aSheet);
static void GetStyleSheetRuleCountAndAtRules(
GlobalObject& aGlobal, StyleSheet& aSheet,
InspectorStyleSheetRuleCountAndAtRulesResult& aResult);
// Utilities for working with CSS properties
//
// Returns true if the string names a property that is inherited by default.
static bool IsInheritedProperty(GlobalObject& aGlobal, Document& aDocument,
const nsACString& aPropertyName);
// Get a list of all our supported property names. Optionally
// property aliases included.
static void GetCSSPropertyNames(GlobalObject& aGlobal,
const PropertyNamesOptions& aOptions,
nsTArray<nsString>& aResult);
// Get a list of all properties controlled by preference, as well as
// their corresponding preference names.
static void GetCSSPropertyPrefs(GlobalObject& aGlobal,
nsTArray<PropertyPref>& aResult);
// Get a list of all valid keywords and colors for aProperty.
static void GetCSSValuesForProperty(GlobalObject& aGlobal,
const nsACString& aPropertyName,
nsTArray<nsString>& aResult,
ErrorResult& aRv);
// Utilities for working with CSS colors
static void RgbToColorName(GlobalObject& aGlobal, uint8_t aR, uint8_t aG,
uint8_t aB, nsACString& aResult);
// Convert a given CSS color string to rgba. Returns null on failure or an
// InspectorRGBATuple on success.
//
// NOTE: Converting a color to RGBA may be lossy when converting from some
// formats e.g. CMYK.
static void ColorToRGBA(GlobalObject&, const nsACString& aColorString,
const Document*,
Nullable<InspectorRGBATuple>& aResult);
// Convert a given CSS color string to another color space.
static void ColorTo(GlobalObject&, const nsACString& aFromColor,
const nsACString& aToColorSpace,
Nullable<InspectorColorToResult>& aResult);
// Check whether a given color is a valid CSS color.
static bool IsValidCSSColor(GlobalObject& aGlobal,
const nsACString& aColorString);
// Utilities for obtaining information about a CSS property.
// Get a list of the longhands corresponding to the given CSS property. If
// the property is a longhand already, just returns the property itself.
// Throws on unsupported property names.
static void GetSubpropertiesForCSSProperty(GlobalObject& aGlobal,
const nsACString& aProperty,
nsTArray<nsString>& aResult,
ErrorResult& aRv);
// Check whether a given CSS property is a shorthand. Throws on unsupported
// property names.
static bool CssPropertyIsShorthand(GlobalObject& aGlobal,
const nsACString& aProperty,
ErrorResult& aRv);
// Check whether values of the given type are valid values for the property.
// For shorthands, checks whether there's a corresponding longhand property
// that accepts values of this type. Throws on unsupported properties or
// unknown types.
static bool CssPropertySupportsType(GlobalObject& aGlobal,
const nsACString& aProperty,
InspectorPropertyType, ErrorResult& aRv);
static bool Supports(GlobalObject&, const nsACString& aDeclaration,
const SupportsOptions&);
static bool IsIgnorableWhitespace(GlobalObject& aGlobalObject,
CharacterData& aDataNode) {
return IsIgnorableWhitespace(aDataNode);
}
static bool IsIgnorableWhitespace(CharacterData& aDataNode);
// Returns the "parent" of a node. The parent of a document node is the
// frame/iframe containing that document. aShowingAnonymousContent says
// whether we are showing anonymous content.
static nsINode* GetParentForNode(nsINode& aNode,
bool aShowingAnonymousContent);
static nsINode* GetParentForNode(GlobalObject& aGlobalObject, nsINode& aNode,
bool aShowingAnonymousContent) {
return GetParentForNode(aNode, aShowingAnonymousContent);
}
static void GetChildrenForNode(GlobalObject&, nsINode& aNode,
bool aShowingAnonymousContent,
bool aIncludeAssignedNodes,
nsTArray<RefPtr<nsINode>>& aResult) {
return GetChildrenForNode(aNode, aShowingAnonymousContent,
aIncludeAssignedNodes,
/* aIncludeSubdocuments = */ true, aResult);
}
static void GetChildrenForNode(nsINode& aNode, bool aShowingAnonymousContent,
bool aIncludeAssignedNodes,
bool aIncludeSubdocuments,
nsTArray<RefPtr<nsINode>>& aResult);
/**
* Setting and removing content state on an element. Both these functions
* call EventStateManager::SetContentState internally; the difference is
* that for the remove case we simply pass in nullptr for the element.
* Use them accordingly.
*
* When removing the active state, you may optionally also clear the active
* document as well by setting aClearActiveDocument
*
* @return Returns true if the state was set successfully. See more details
* in EventStateManager.h SetContentState.
*/
static bool SetContentState(GlobalObject& aGlobal, Element& aElement,
uint64_t aState, ErrorResult& aRv);
static bool RemoveContentState(GlobalObject& aGlobal, Element& aElement,
uint64_t aState, bool aClearActiveDocument,
ErrorResult& aRv);
static uint64_t GetContentState(GlobalObject& aGlobal, Element& aElement);
static void GetUsedFontFaces(GlobalObject& aGlobal, nsRange& aRange,
uint32_t aMaxRanges, // max number of ranges to
// record for each face
bool aSkipCollapsedWhitespace,
nsLayoutUtils::UsedFontFaceList& aResult,
ErrorResult& aRv);
/**
* Get the names of all the supported pseudo-elements.
* Pseudo-elements which are only accepted in UA style sheets are
* not included.
*/
static void GetCSSPseudoElementNames(GlobalObject& aGlobal,
nsTArray<nsString>& aResult);
// pseudo-class style locking methods. aPseudoClass must be a valid
// pseudo-class selector string, e.g. ":hover". ":any-link" and
// non-event-state pseudo-classes are ignored. aEnabled sets whether the
// psuedo-class should be locked to on or off.
static void AddPseudoClassLock(GlobalObject& aGlobal, Element& aElement,
const nsAString& aPseudoClass, bool aEnabled);
static void RemovePseudoClassLock(GlobalObject& aGlobal, Element& aElement,
const nsAString& aPseudoClass);
static bool HasPseudoClassLock(GlobalObject& aGlobal, Element& aElement,
const nsAString& aPseudoClass);
static void ClearPseudoClassLocks(GlobalObject& aGlobal, Element& aElement);
static bool IsElementThemed(GlobalObject& aGlobal, Element& aElement);
static Element* ContainingBlockOf(GlobalObject&, Element&);
static void GetBlockLineCounts(GlobalObject& aGlobal, Element& aElement,
Nullable<nsTArray<uint32_t>>& aResult);
MOZ_CAN_RUN_SCRIPT
static already_AddRefed<nsINodeList> GetOverflowingChildrenOfElement(
GlobalObject& aGlobal, Element& element);
/**
* Parse CSS and update the style sheet in place.
*
* @param DOMCSSStyleSheet aSheet
* @param UTF8String aInput
* The new source string for the style sheet.
*/
static void ParseStyleSheet(GlobalObject& aGlobal, StyleSheet& aSheet,
const nsACString& aInput, ErrorResult& aRv);
/**
* Check if the provided name can be custom element name.
*/
static bool IsCustomElementName(GlobalObject&, const nsAString& aName,
const nsAString& aNamespaceURI);
/**
* Get the names of registered Highlights
*/
static void GetRegisteredCssHighlights(GlobalObject& aGlobal,
Document& aDocument, bool aActiveOnly,
nsTArray<nsString>& aResult);
/**
* Get registered CSS properties (via CSS.registerProperty or @property)
*/
static void GetCSSRegisteredProperties(
GlobalObject& aGlobal, Document& aDocument,
nsTArray<InspectorCSSPropertyDefinition>& aResult);
/**
* Get the rule body text within aInitialText
*/
static void GetRuleBodyText(GlobalObject&, const nsACString& aInitialText,
nsACString& aBodyText);
/**
* Replace the rule body text in aStyleSheetText at passed line and column
*/
static void ReplaceBlockRuleBodyTextInStylesheet(
GlobalObject&, const nsACString& aStyleSheetText, uint32_t aLine,
uint32_t aColumn, const nsACString& aNewBodyText,
nsACString& aNewStyleSheetText);
};
} // namespace mozilla::dom
#endif // mozilla_dom_InspectorUtils_h