chrome/browser/printing/printer_manager_dialog_linux.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/printing/printer_manager_dialog.h"
   6
   7 #include "base/bind.h"
   8 #include "base/environment.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/nix/xdg_util.h"
  12 #include "base/process/kill.h"
  13 #include "base/process/launch.h"
  14 #include "content/public/browser/browser_thread.h"
  15
  16 using base::Environment;
  17 using content::BrowserThread;
  18
  19 namespace {
  20
  21 // KDE printer config command ("system-config-printer-kde") causes the
  22 // OptionWidget to crash (https://bugs.kde.org/show_bug.cgi?id=271957).
  23 // Therefore, use GNOME printer config command for KDE.
  24 const char kGNOMEPrinterConfigCommand[] = "system-config-printer";
  25
  26 // Detect the command based on the deskop environment and open the printer
  27 // manager dialog.
  28 void DetectAndOpenPrinterConfigDialog() {
  29   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
  30   scoped_ptr<Environment> env(Environment::Create());
  31
  32   const char* command = NULL;
  33   switch (base::nix::GetDesktopEnvironment(env.get())) {
  34     case base::nix::DESKTOP_ENVIRONMENT_GNOME:
  35     case base::nix::DESKTOP_ENVIRONMENT_KDE3:
  36     case base::nix::DESKTOP_ENVIRONMENT_KDE4:
  37     case base::nix::DESKTOP_ENVIRONMENT_UNITY:
  38       command = kGNOMEPrinterConfigCommand;
  39       break;
  40     case base::nix::DESKTOP_ENVIRONMENT_XFCE:
  41     case base::nix::DESKTOP_ENVIRONMENT_OTHER:
  42       break;
  43   }
  44
  45   if (!command) {
  46     LOG(ERROR) << "Failed to detect the command to open printer config dialog";
  47     return;
  48   }
  49
  50   std::vector<std::string> argv;
  51   argv.push_back(command);
  52   base::ProcessHandle handle;
  53   if (!base::LaunchProcess(argv, base::LaunchOptions(), &handle)) {
  54     LOG(ERROR) << "Failed to open printer manager dialog ";
  55     return;
  56   }
  57   base::EnsureProcessGetsReaped(handle);
  58 }
  59
  60 }  // anonymous namespace
  61
  62 namespace printing {
  63
  64 void PrinterManagerDialog::ShowPrinterManagerDialog() {
  65   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
  66                           base::Bind(&DetectAndOpenPrinterConfigDialog));
  67 }
  68
  69 }  // namespace printing