Bug 16498 Finished Downloading sounds

patch by cst@andrew.cmu.edu r=varga sr=bz

xpfe/components/download-manager/src/Makefile.in

@@ -43,6 +43,8 @@ REQUIRES  = xpcom \
             appshell \
             dom \
             profile \
+            widget \
+            pref \
             $(NULL)
 CPPSRCS   = \
     nsDownloadManager.cpp \

xpfe/components/download-manager/src/nsDownloadManager.cpp

@@ -59,6 +59,9 @@
 #include "nsIPromptService.h"
 #include "nsIObserverService.h"
 #include "nsIProfileChangeStatus.h"
+#include "nsISound.h"
+#include "nsIPrefService.h"
+#include "nsIURL.h"
 
 /* Outstanding issues/todo:
  * 1. Implement pause/resume.
@@ -1216,6 +1219,33 @@ nsDownload::OnStateChange(nsIWebProgress* aWebProgress,
       mCurrBytes = mMaxBytes;
       mPercentComplete = 100;
 
+      //Play a sound when the download finishes
+      nsXPIDLCString soundStr;
+
+      nsCOMPtr<nsIPrefService> prefs = do_GetService("@mozilla.org/preferences-service;1");
+
+      if (prefs) {
+        nsCOMPtr<nsIPrefBranch> prefBranch;
+        prefs->GetBranch(nsnull, getter_AddRefs(prefBranch));
+        if (prefBranch)
+          prefBranch->GetCharPref("browser.download.finished_sound_url", getter_Copies(soundStr));
+      }
+
+      //only continue if it isn't blank
+      if (!soundStr.IsEmpty()) {
+        nsCOMPtr<nsISound> snd = do_GetService("@mozilla.org/sound;1");
+        if (snd) { //hopefully we got it
+          nsCOMPtr<nsIURI> soundURI;
+          
+          NS_NewURI(getter_AddRefs(soundURI), soundStr);
+          nsCOMPtr<nsIURL> soundURL(do_QueryInterface(soundURI));
+          if (soundURL)
+            snd->Play(soundURL);
+          else
+            snd->Beep();
+        }
+      }
+
       nsAutoString path;
       rv = mTarget->GetPath(path);
       // can't do an early return; have to break reference cycle below