Disable textfield's context menu in screen locker

chrome/browser/chromeos/login/screen_lock_view.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/screen_lock_view.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/rounded_rect_painter.h"
 #include "chrome/browser/chromeos/login/screen_locker.h"
 #include "chrome/browser/chromeos/login/textfield_with_margin.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/user_view.h"
 #include "chrome/browser/chromeos/login/username_view.h"
 #include "chrome/browser/chromeos/login/wizard_accessibility_helper.h"
 #include "chrome/browser/chromeos/views/copy_background.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "content/common/notification_service.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "views/background.h"
 #include "views/border.h"
 #include "views/controls/image_view.h"
 #include "views/controls/label.h"
+#include "views/controls/textfield/native_textfield_wrapper.h"
 #include "views/controls/textfield/textfield.h"
 #include "views/layout/grid_layout.h"
 
 namespace chromeos {
 
 namespace {
 
 const int kCornerRadius = 5;
 
 // A Textfield for password, which also sets focus to itself
 // when a mouse is clicked on it. This is necessary in screen locker
 // as mouse events are grabbed in the screen locker.
 class PasswordField : public TextfieldWithMargin {
  public:
   PasswordField()
-      : TextfieldWithMargin(views::Textfield::STYLE_PASSWORD) {
+      : TextfieldWithMargin(views::Textfield::STYLE_PASSWORD),
+        context_menu_disabled_(false) {
     set_text_to_display_when_empty(
         l10n_util::GetStringUTF16(IDS_LOGIN_POD_EMPTY_PASSWORD_TEXT));
   }
 
   // views::View overrides.
   virtual bool OnMousePressed(const views::MouseEvent& e) {
     RequestFocus();
     return false;
   }
 
+  virtual void ViewHierarchyChanged(bool is_add,
+                                    views::View* parent,
+                                    views::View* child) OVERRIDE {
+    Textfield::ViewHierarchyChanged(is_add, parent, child);
+    // Wiat until native widget is created.
+    if (!context_menu_disabled_ && native_wrapper_) {
+      gfx::NativeView widget = native_wrapper_->GetTestingHandle();
+      if (widget) {
+        context_menu_disabled_ = true;
+        g_signal_connect(widget, "button-press-event",
+                         G_CALLBACK(OnButtonPressEventThunk), this);
+      }
+    }
+  }
+
+  CHROMEGTK_CALLBACK_1(PasswordField, gboolean, OnButtonPressEvent,
+                       GdkEventButton*);
+
  private:
+  bool context_menu_disabled_;
+
   DISALLOW_COPY_AND_ASSIGN(PasswordField);
 };
 
+gboolean PasswordField::OnButtonPressEvent(GtkWidget* widget,
+                                           GdkEventButton* event) {
+  // Eat button 2/3 and alt + any button to disable context menu.
+  return event->state & GDK_MOD1_MASK ||
+      event->button == 2 ||
+      event->button == 3;
+}
+
 }  // namespace
 
 using views::GridLayout;
 using login::kBorderSize;
 
 ScreenLockView::ScreenLockView(ScreenLocker* screen_locker)
     : user_view_(NULL),
       password_field_(NULL),
       screen_locker_(screen_locker),
       main_(NULL),
@@ skipping 147 matching lines @@
   if (type != NotificationType::LOGIN_USER_IMAGE_CHANGED || !user_view_)
     return;
 
   UserManager::User* user = Details<UserManager::User>(details).ptr();
   if (screen_locker_->user().email() != user->email())
     return;
   user_view_->SetImage(user->image(), user->image());
 }
 
 }  // namespace chromeos