added change notification support

content/base/public/nsIDocument.h

@@ -35,6 +35,7 @@ class nsIStreamListener;
 class nsIStreamObserver;
 class nsIStyleSet;
 class nsIStyleSheet;
+class nsIStyleRule;
 class nsIURL;
 class nsIURLGroup;
 class nsIViewManager;
@@ -188,6 +189,16 @@ public:
                             nsIContent* aChild,
                             PRInt32 aIndexInContainer) = 0;
 
+  // Observation hooks for style data to propogate notifications
+  // to document observers
+  NS_IMETHOD StyleRuleChanged(nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+  NS_IMETHOD StyleRuleAdded(nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+  NS_IMETHOD StyleRuleRemoved(nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
+
   /**
     * Returns the Selection Object
    */

content/base/public/nsIDocumentObserver.h

@@ -22,6 +22,7 @@
 class nsIContent;
 class nsIPresShell;
 class nsIStyleSheet;
+class nsIStyleRule;
 class nsString;
 class nsIDocument;
 
@@ -204,6 +205,53 @@ public:
                                             PRBool aDisabled) = 0;
 
   /**
+   * A StyleRule has just been modified within a style sheet.
+   * This method is called automatically when the rule gets
+   * modified. The style sheet passes this notification to 
+   * the document. The notification is passed on to all of 
+   * the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that contians the rule
+   * @param aStyleRule the rule that was modified
+   * @param aHint some possible info about the nature of the change
+   */
+  NS_IMETHOD StyleRuleChanged(nsIDocument *aDocument,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+
+  /**
+   * A StyleRule has just been added to a style sheet.
+   * This method is called automatically when the rule gets
+   * added to the sheet. The style sheet passes this
+   * notification to the document. The notification is passed on 
+   * to all of the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that has been modified
+   * @param aStyleRule the rule that was added
+   */
+  NS_IMETHOD StyleRuleAdded(nsIDocument *aDocument,
+                            nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+
+  /**
+   * A StyleRule has just been removed from a style sheet.
+   * This method is called automatically when the rule gets
+   * removed from the sheet. The style sheet passes this
+   * notification to the document. The notification is passed on 
+   * to all of the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that has been modified
+   * @param aStyleRule the rule that was removed
+   */
+  NS_IMETHOD StyleRuleRemoved(nsIDocument *aDocument,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
+
+ /**
    * The document is in the process of being destroyed.
    * This method is called automatically during document
    * destruction.

content/base/public/nsIStyleRule.h

@@ -23,6 +23,7 @@
 #include "nslayout.h"
 #include "nsISupports.h"
 
+class nsIStyleSheet;
 class nsIStyleContext;
 class nsIPresContext;
 class nsIContent;
@@ -36,6 +37,8 @@ public:
   NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const = 0;
   NS_IMETHOD HashValue(PRUint32& aValue) const = 0;
 
+  NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const = 0;
+
   // Strength is an out-of-band weighting, useful for mapping CSS ! important
   NS_IMETHOD GetStrength(PRInt32& aStrength) = 0;
 

layout/base/public/nsIDocument.h

@@ -35,6 +35,7 @@ class nsIStreamListener;
 class nsIStreamObserver;
 class nsIStyleSet;
 class nsIStyleSheet;
+class nsIStyleRule;
 class nsIURL;
 class nsIURLGroup;
 class nsIViewManager;
@@ -188,6 +189,16 @@ public:
                             nsIContent* aChild,
                             PRInt32 aIndexInContainer) = 0;
 
+  // Observation hooks for style data to propogate notifications
+  // to document observers
+  NS_IMETHOD StyleRuleChanged(nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+  NS_IMETHOD StyleRuleAdded(nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+  NS_IMETHOD StyleRuleRemoved(nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
+
   /**
     * Returns the Selection Object
    */

layout/base/public/nsIDocumentObserver.h

@@ -22,6 +22,7 @@
 class nsIContent;
 class nsIPresShell;
 class nsIStyleSheet;
+class nsIStyleRule;
 class nsString;
 class nsIDocument;
 
@@ -204,6 +205,53 @@ public:
                                             PRBool aDisabled) = 0;
 
   /**
+   * A StyleRule has just been modified within a style sheet.
+   * This method is called automatically when the rule gets
+   * modified. The style sheet passes this notification to 
+   * the document. The notification is passed on to all of 
+   * the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that contians the rule
+   * @param aStyleRule the rule that was modified
+   * @param aHint some possible info about the nature of the change
+   */
+  NS_IMETHOD StyleRuleChanged(nsIDocument *aDocument,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+
+  /**
+   * A StyleRule has just been added to a style sheet.
+   * This method is called automatically when the rule gets
+   * added to the sheet. The style sheet passes this
+   * notification to the document. The notification is passed on 
+   * to all of the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that has been modified
+   * @param aStyleRule the rule that was added
+   */
+  NS_IMETHOD StyleRuleAdded(nsIDocument *aDocument,
+                            nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+
+  /**
+   * A StyleRule has just been removed from a style sheet.
+   * This method is called automatically when the rule gets
+   * removed from the sheet. The style sheet passes this
+   * notification to the document. The notification is passed on 
+   * to all of the document observers.
+   *
+   * @param aDocument The document being observed
+   * @param aStyleSheet the StyleSheet that has been modified
+   * @param aStyleRule the rule that was removed
+   */
+  NS_IMETHOD StyleRuleRemoved(nsIDocument *aDocument,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
+
+ /**
    * The document is in the process of being destroyed.
    * This method is called automatically during document
    * destruction.

layout/base/public/nsIStyleFrameConstruction.h

@@ -74,6 +74,18 @@ public:
                               nsIContent* aContent,
                               nsIAtom* aAttribute,
                               PRInt32 aHint) = 0;
+
+  // Style change notifications
+  NS_IMETHOD StyleRuleChanged(nsIPresContext* aPresContext,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+  NS_IMETHOD StyleRuleAdded(nsIPresContext* aPresContext,
+                            nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+  NS_IMETHOD StyleRuleRemoved(nsIPresContext* aPresContext,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
 };
 
 #endif /* nsIStyleFrameConstruction_h___ */

layout/base/public/nsIStyleRule.h

@@ -23,6 +23,7 @@
 #include "nslayout.h"
 #include "nsISupports.h"
 
+class nsIStyleSheet;
 class nsIStyleContext;
 class nsIPresContext;
 class nsIContent;
@@ -36,6 +37,8 @@ public:
   NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const = 0;
   NS_IMETHOD HashValue(PRUint32& aValue) const = 0;
 
+  NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const = 0;
+
   // Strength is an out-of-band weighting, useful for mapping CSS ! important
   NS_IMETHOD GetStrength(PRInt32& aStrength) = 0;
 

layout/base/public/nsIStyleSet.h

@@ -132,7 +132,17 @@ public:
                               nsIAtom* aAttribute,
                               PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
 
-  // xxx style rules enumeration
+  // Style change notifications
+  NS_IMETHOD StyleRuleChanged(nsIPresContext* aPresContext,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule,
+                              PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
+  NS_IMETHOD StyleRuleAdded(nsIPresContext* aPresContext,
+                            nsIStyleSheet* aStyleSheet,
+                            nsIStyleRule* aStyleRule) = 0;
+  NS_IMETHOD StyleRuleRemoved(nsIPresContext* aPresContext,
+                              nsIStyleSheet* aStyleSheet,
+                              nsIStyleRule* aStyleRule) = 0;
 
   virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) = 0;
   virtual void ListContexts(nsIStyleContext* aRootContext, FILE* out = stdout, PRInt32 aIndent = 0) = 0;

layout/style/nsIStyleRule.h

@@ -23,6 +23,7 @@
 #include "nslayout.h"
 #include "nsISupports.h"
 
+class nsIStyleSheet;
 class nsIStyleContext;
 class nsIPresContext;
 class nsIContent;
@@ -36,6 +37,8 @@ public:
   NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const = 0;
   NS_IMETHOD HashValue(PRUint32& aValue) const = 0;
 
+  NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const = 0;
+
   // Strength is an out-of-band weighting, useful for mapping CSS ! important
   NS_IMETHOD GetStrength(PRInt32& aStrength) = 0;