Camino only - Bug 374503: Clear status bar after loading all secondary resources. r=mento sr=pink

camino/src/browser/BrowserWrapper.h

@@ -148,6 +148,7 @@ class nsIArray;
   CHBrowserView*            mBrowserView;      // retained
   ToolTip*                  mToolTip;
   NSMutableArray*           mStatusStrings;    // current status bar messages, STRONG
+  NSMutableSet*             mLoadingResources; // page resources currently loading, STRONG
 
   IBOutlet NSView*          mBlockedPopupView;   // loaded on demand, can be nil, STRONG
   IBOutlet RolloverImageButton* mBlockedPopupCloseButton;
@@ -230,6 +231,8 @@ class nsIArray;
 // CHBrowserListener messages
 - (void)onLoadingStarted;
 - (void)onLoadingCompleted:(BOOL)succeeded;
+- (void)onResourceLoadingStarted:(NSNumber*)resourceIdentifier;
+- (void)onResourceLoadingCompleted:(NSNumber*)resourceIdentifier;
 - (void)onProgressChange64:(long long)currentBytes outOf:(long long)maxBytes;
 - (void)onProgressChange:(long)currentBytes outOf:(long)maxBytes;
 - (void)onLocationChange:(NSString*)urlSpec isNewPage:(BOOL)newPage requestSucceeded:(BOOL)requestOK;

camino/src/browser/BrowserWrapper.mm

@@ -89,7 +89,7 @@ class nsIDOMPopupBlockedEvent;
 static NSString* const kEnablePluginsChangedNotificationName = @"EnablePluginsChanged";
 
 // types of status bar messages, in order of priority for showing to the user
-enum {
+enum StatusPriority {
   eStatusLinkTarget    = 0, // link mouseover info
   eStatusProgress      = 1, // loading progress
   eStatusScript        = 2, // javascript window.status
@@ -110,6 +110,8 @@ enum {
 
 - (void)updateSiteIconImage:(NSImage*)inSiteIcon withURI:(NSString *)inSiteIconURI loadError:(BOOL)inLoadError;
 
+- (void)updateStatusString:(NSString*)statusString withPriority:(StatusPriority)priority;
+
 - (void)setPendingURI:(NSString*)inURI;
 
 - (NSString*)displayTitleForPageURL:(NSString*)inURL title:(NSString*)inTitle;
@@ -177,6 +179,8 @@ enum {
 
     mDisplayTitle = [[NSString alloc] init];
     
+    mLoadingResources = [[NSMutableSet alloc] init];
+    
     [self registerNotificationListener];
   }
   return self;
@@ -193,6 +197,7 @@ enum {
   [mSiteIconImage release];
   [mSiteIconURI release];
   [mStatusStrings release];
+  [mLoadingResources release];
 
   [mToolTip release];
   [mDisplayTitle release];
@@ -491,8 +496,9 @@ enum {
   [mDelegate setLoadingActive:YES];
   [mDelegate setLoadingProgress:mProgress];
   
-  [mStatusStrings replaceObjectAtIndex:eStatusProgress withObject:NSLocalizedString(@"TabLoading", @"")];
-  [mDelegate updateStatus:[self statusString]];
+  [mLoadingResources removeAllObjects];
+  
+  [self updateStatusString:NSLocalizedString(@"TabLoading", @"") withPriority:eStatusProgress];
 
   [(BrowserTabViewItem*)mTabItem startLoadAnimation];
   
@@ -511,8 +517,7 @@ enum {
   
   [mDelegate setLoadingActive:NO];
   
-  [mStatusStrings replaceObjectAtIndex:eStatusProgress withObject:[NSNull null]];
-  [mDelegate updateStatus:[self statusString]];
+  [self updateStatusString:nil withPriority:eStatusProgress];
 
   [(BrowserTabViewItem*)mTabItem stopLoadAnimation];
 
@@ -537,6 +542,24 @@ enum {
   }
 }
 
+- (void)onResourceLoadingStarted:(NSNumber*)resourceIdentifier
+{
+  [mLoadingResources addObject:resourceIdentifier];
+}
+
+- (void)onResourceLoadingCompleted:(NSNumber*)resourceIdentifier
+{
+  if ([mLoadingResources containsObject:resourceIdentifier])
+  {
+    [mLoadingResources removeObject:resourceIdentifier];
+    // When the last sub-resource finishes loading (which may be after
+    // onLoadingCompleted: is called), clear the status string, since otherwise
+    // it will stay stuck on the last loading message.
+    if ([mLoadingResources count] == 0)
+      [self updateStatusString:nil withPriority:eStatusProgress];
+  }
+}
+
 - (void)onProgressChange64:(long long)currentBytes outOf:(long long)maxBytes 
 {
   if (maxBytes > 0)
@@ -623,8 +646,7 @@ enum {
 
 - (void)onStatusChange:(NSString*)aStatusString
 {
-  [mStatusStrings replaceObjectAtIndex:eStatusProgress withObject:aStatusString];
-  [mDelegate updateStatus:[self statusString]];
+  [self updateStatusString:aStatusString withPriority:eStatusProgress];
 }
 
 //
@@ -642,16 +664,24 @@ enum {
 
 - (void)setStatus:(NSString *)statusString ofType:(NSStatusType)type 
 {
-  int index;
+  StatusPriority priority;
 
   if (type == NSStatusTypeScriptDefault)
-    index = eStatusScriptDefault;
+    priority = eStatusScriptDefault;
   else if (type == NSStatusTypeScript)
-    index = eStatusScript;
+    priority = eStatusScript;
   else
-    index = eStatusLinkTarget;
+    priority = eStatusLinkTarget;
 
-  [mStatusStrings replaceObjectAtIndex:index withObject:(statusString ? (id)statusString : (id)[NSNull null])];
+  [self updateStatusString:statusString withPriority:priority];
+}
+
+// Private method to consolidate all status string changes, as status strings
+// can come from Gecko through several callbacks.
+- (void)updateStatusString:(NSString*)statusString withPriority:(StatusPriority)priority
+{
+  [mStatusStrings replaceObjectAtIndex:priority withObject:(statusString ? (id)statusString
+                                                                         : (id)[NSNull null])];
   [mDelegate updateStatus:[self statusString]];
 }
 

camino/src/embedding/CHBrowserListener.mm

@@ -680,18 +680,21 @@ CHBrowserListener::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequ
 {
   NSEnumerator* enumerator = [mListeners objectEnumerator];
   id<CHBrowserListener> obj;
-  if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK)
-  {
-    if (aStateFlags & nsIWebProgressListener::STATE_START)
-    {
+  if (aStateFlags & nsIWebProgressListener::STATE_START) {
+    if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK) {
       while ((obj = [enumerator nextObject]))
         [obj onLoadingStarted];
     }
-    else if (aStateFlags & nsIWebProgressListener::STATE_STOP)
-    {
+    while ((obj = [enumerator nextObject]))
+      [obj onResourceLoadingStarted:[NSNumber numberWithUnsignedLongLong:(unsigned long long)aRequest]];
+  }
+  else if (aStateFlags & nsIWebProgressListener::STATE_STOP) {
+    if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK) {
       while ((obj = [enumerator nextObject]))
         [obj onLoadingCompleted:(NS_SUCCEEDED(aStatus))];
     }
+    while ((obj = [enumerator nextObject]))
+      [obj onResourceLoadingCompleted:[NSNumber numberWithUnsignedLongLong:(unsigned long long)aRequest]];
   }
 
   return NS_OK;

camino/src/embedding/CHBrowserView.h

@@ -68,6 +68,10 @@ class nsISecureBrowserUI;
 
 - (void)onLoadingStarted;
 - (void)onLoadingCompleted:(BOOL)succeeded;
+// Called when each resource on a page (the main HTML plus any subsidiary
+// resources such as images and style sheets) starts ond finishes.
+- (void)onResourceLoadingStarted:(NSNumber*)resourceIdentifier;
+- (void)onResourceLoadingCompleted:(NSNumber*)resourceIdentifier;
 // Invoked regularly as data associated with a page streams
 // in. If the total number of bytes expected is unknown,
 // maxBytes is -1.

camino/src/formfill/KeychainService.mm

@@ -1122,6 +1122,14 @@ KeychainFormSubmitObserver::Notify(nsIDOMHTMLFormElement* formNode, nsIDOMWindow
 {
 }
 
+- (void)onResourceLoadingStarted:(NSNumber*)resourceIdentifier
+{
+}
+
+- (void)onResourceLoadingCompleted:(NSNumber*)resourceIdentifier
+{
+}
+
 - (void)onProgressChange:(long)currentBytes outOf:(long)maxBytes
 {
 }