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Bug 1365092 - Move side effects of SetAttr and ParseAttribute to BeforeSetAttr and AfterSetAttr

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* Moves side effects of nsGenericHTMLElement and Element's SetAttr, UnsetAttr, and ParseAttribute functions to the corresponding BeforeSetAttr and AfterSetAttr functions
* Moves side effects of HTMLAnchorElement's SetAttr, UnsetAttr, and ParseAttribute functions to the corresponding BeforeSetAttr and AfterSetAttr functions
* Moves side effects of HTMLImageElement's SetAttr function to the corresponding BeforeSetAttr and AfterSetAttr functions
* Moves side effects of SetAttr, UnsetAttr, and ParseAttribute functions to BeforeSetAttr and AfterSetAttr

Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 05:33:06 -04:00 • committed by Roy Tam
commit 6aa436b588
41 changed files with 983 additions and 956 deletions
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24
dom/html/HTMLSharedObjectElement.h
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@ -57,9 +57,6 @@ public:
bool aCompileEventHandlers) override;
virtual void UnbindFromTree(bool aDeep = true,
bool aNullParent = true) override;
virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom *aName,
nsIAtom *aPrefix, const nsAString &aValue,
bool aNotify) override;
virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
virtual IMEState GetDesiredIMEState() override;
@ -200,6 +197,16 @@ public:
* Calls LoadObject with the correct arguments to start the plugin load.
*/
void StartObjectLoad(bool aNotify, bool aForceLoad);
protected:
virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
bool aNotify) override;
virtual nsresult OnAttrSetButNotChanged(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString& aValue,
bool aNotify) override;
private:
virtual ~HTMLSharedObjectElement();
@ -221,6 +228,17 @@ private:
static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
nsRuleData* aData);
/**
* This function is called by AfterSetAttr and OnAttrSetButNotChanged.
* It will not be called if the value is being unset.
*
* @param aNamespaceID the namespace of the attr being set
* @param aName the localname of the attribute being set
* @param aNotify Whether we plan to notify document observers.
*/
nsresult AfterMaybeChangeAttr(int32_t aNamespaceID, nsIAtom* aName,
bool aNotify);
/**
* Decides whether we should load embed node content.
*