linux: Implemnt browser methods.

atom.gyp

@@ -84,6 +84,7 @@
       'browser/atom_javascript_dialog_manager.h',
       'browser/browser.cc',
       'browser/browser.h',
+      'browser/browser_linux.cc',
       'browser/browser_mac.mm',
       'browser/browser_win.cc',
       'browser/browser_observer.h',

browser/browser_linux.cc

@@ -0,0 +1,44 @@
+// Copyright (c) 2013 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "browser/browser.h"
+
+#include <stdlib.h>
+
+#include "browser/native_window.h"
+#include "browser/window_list.h"
+#include "common/atom_version.h"
+
+namespace atom {
+
+void Browser::Terminate() {
+  is_quiting_ = true;
+  exit(0);
+}
+
+void Browser::Focus() {
+  // Focus on the first visible window.
+  WindowList* list = WindowList::GetInstance();
+  for (WindowList::iterator iter = list->begin(); iter != list->end(); ++iter) {
+    NativeWindow* window = *iter;
+    if (window->IsVisible()) {
+      window->Focus(true);
+      break;
+    }
+  }
+}
+
+std::string Browser::GetExecutableFileVersion() const {
+  return ATOM_VERSION_STRING;
+}
+
+std::string Browser::GetExecutableFileProductName() const {
+  return "Atom-Shell";
+}
+
+void Browser::CancelQuit() {
+  // No way to cancel quit on Linux.
+}
+
+}  // namespace atom

browser/window_list.h

@@ -19,14 +19,17 @@ class WindowListObserver;
 class WindowList {
  public:
   typedef std::vector<NativeWindow*> WindowVector;
+  typedef WindowVector::iterator iterator;
   typedef WindowVector::const_iterator const_iterator;
-  typedef WindowVector::const_reverse_iterator const_reverse_iterator;
 
   // Windows are added to the list before they have constructed windows,
   // so the |window()| member function may return NULL.
   const_iterator begin() const { return windows_.begin(); }
   const_iterator end() const { return windows_.end(); }
 
+  iterator begin() { return windows_.begin(); }
+  iterator end() { return windows_.end(); }
+
   bool empty() const { return windows_.empty(); }
   size_t size() const { return windows_.size(); }