layout/tools/layout-debug/src/nsLayoutDebugCLH.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 // vim:cindent:tabstop=4:expandtab:shiftwidth=4:
michael@0 3 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 #include "nsLayoutDebugCLH.h"
michael@0 8 #include "nsString.h"
michael@0 9 #include "plstr.h"
michael@0 10 #include "nsCOMPtr.h"
michael@0 11 #include "nsIWindowWatcher.h"
michael@0 12 #include "nsIServiceManager.h"
michael@0 13 #include "nsIDOMWindow.h"
michael@0 14 #include "nsISupportsArray.h"
michael@0 15 #include "nsISupportsPrimitives.h"
michael@0 16 #include "nsICommandLine.h"
michael@0 17
michael@0 18 nsLayoutDebugCLH::nsLayoutDebugCLH()
michael@0 19 {
michael@0 20 }
michael@0 21
michael@0 22 nsLayoutDebugCLH::~nsLayoutDebugCLH()
michael@0 23 {
michael@0 24 }
michael@0 25
michael@0 26 NS_IMPL_ISUPPORTS(nsLayoutDebugCLH, ICOMMANDLINEHANDLER)
michael@0 27
michael@0 28 NS_IMETHODIMP
michael@0 29 nsLayoutDebugCLH::Handle(nsICommandLine* aCmdLine)
michael@0 30 {
michael@0 31 nsresult rv;
michael@0 32
michael@0 33 int32_t idx;
michael@0 34 rv = aCmdLine->FindFlag(NS_LITERAL_STRING("layoutdebug"), false, &idx);
michael@0 35 NS_ENSURE_SUCCESS(rv, rv);
michael@0 36 if (idx < 0)
michael@0 37 return NS_OK;
michael@0 38
michael@0 39 int32_t length;
michael@0 40 aCmdLine->GetLength(&length);
michael@0 41
michael@0 42 nsAutoString url;
michael@0 43 if (idx + 1 < length) {
michael@0 44 rv = aCmdLine->GetArgument(idx + 1, url);
michael@0 45 NS_ENSURE_SUCCESS(rv, rv);
michael@0 46 if (!url.IsEmpty() && url.CharAt(0) == '-')
michael@0 47 url.Truncate();
michael@0 48 }
michael@0 49
michael@0 50 aCmdLine->RemoveArguments(idx, idx + !url.IsEmpty());
michael@0 51
michael@0 52 nsCOMPtr<nsISupportsArray> argsArray =
michael@0 53 do_CreateInstance(NS_SUPPORTSARRAY_CONTRACTID, &rv);
michael@0 54 NS_ENSURE_SUCCESS(rv, rv);
michael@0 55
michael@0 56 if (!url.IsEmpty())
michael@0 57 {
michael@0 58 nsCOMPtr<nsISupportsString> scriptableURL =
michael@0 59 do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID);
michael@0 60 NS_ENSURE_TRUE(scriptableURL, NS_ERROR_FAILURE);
michael@0 61
michael@0 62 scriptableURL->SetData(url);
michael@0 63 argsArray->AppendElement(scriptableURL);
michael@0 64 }
michael@0 65
michael@0 66 nsCOMPtr<nsIWindowWatcher> wwatch =
michael@0 67 do_GetService(NS_WINDOWWATCHER_CONTRACTID);
michael@0 68 NS_ENSURE_TRUE(wwatch, NS_ERROR_FAILURE);
michael@0 69
michael@0 70 nsCOMPtr<nsIDOMWindow> opened;
michael@0 71 wwatch->OpenWindow(nullptr, "chrome://layoutdebug/content/",
michael@0 72 "_blank", "chrome,dialog=no,all", argsArray,
michael@0 73 getter_AddRefs(opened));
michael@0 74 aCmdLine->SetPreventDefault(true);
michael@0 75 return NS_OK;
michael@0 76 }
michael@0 77
michael@0 78 NS_IMETHODIMP
michael@0 79 nsLayoutDebugCLH::GetHelpInfo(nsACString& aResult)
michael@0 80 {
michael@0 81 aResult.Assign(NS_LITERAL_CSTRING(" -layoutdebug [<url>] Start with Layout Debugger\n"));
michael@0 82 return NS_OK;
michael@0 83 }
michael@0 84

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