[Pkg-mozext-commits] [tabmixplus] 28/51: Fix Exception "Component returned failure code: 0x80004002 (NS_NOINTERFACE) [nsIWebProgress.DOMWindow]"

[David Prévot]

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taffit pushed a commit to branch master
in repository tabmixplus.

commit 953c580320ef264921e057bc4bfc9421262723a2
Author: onemen <tabmix.onemen at gmail.com>
Date:   Tue Jan 6 15:17:45 2015 +0200

    Fix Exception "Component returned failure code: 0x80004002 (NS_NOINTERFACE) [nsIWebProgress.DOMWindow]"
---
 chrome/content/tab/tab.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/chrome/content/tab/tab.js b/chrome/content/tab/tab.js
index cf21c8b..d2cc60c 100644
--- a/chrome/content/tab/tab.js
+++ b/chrome/content/tab/tab.js
@@ -2562,10 +2562,15 @@ var TabmixProgressListener = {
                aStateFlags & nsIWebProgressListener.STATE_IS_NETWORK) {
         let uri = aRequest.QueryInterface(Ci.nsIChannel).URI.spec;
         // remove blank tab that created by downloading a file.
-        if (Tabmix.prefs.getBoolPref("enablefiletype") &&
+        let isDownLoading;
+        try {
+          // nsIWebProgress.DOMWindow can throw NS_NOINTERFACE
+          isDownLoading = Tabmix.prefs.getBoolPref("enablefiletype") &&
             aWebProgress.DOMWindow.document.documentURI == "about:blank" &&
             uri != "about:blank" && aStatus === 0 &&
-            this.mTabBrowser.isBlankTab(tab)) {
+            this.mTabBrowser.isBlankTab(tab);
+        } catch(ex) { }
+        if (isDownLoading) {
           if (tab.selected)
             this.mTabBrowser.previousTab(tab);
           this.mTabBrowser.hideTab(tab);

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