src/chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.cc

   1 // Copyright (c) 2013 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/ui/views/frame/opaque_browser_frame_view_linux.h"
   6
   7 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
   8 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
   9 #include "ui/views/linux_ui/linux_ui.h"
  10
  11 ///////////////////////////////////////////////////////////////////////////////
  12 // OpaqueBrowserFrameViewLinux, public:
  13
  14 OpaqueBrowserFrameViewLinux::OpaqueBrowserFrameViewLinux(
  15     OpaqueBrowserFrameView* view,
  16     OpaqueBrowserFrameViewLayout* layout)
  17     : view_(view),
  18       layout_(layout) {
  19   views::LinuxUI* ui = views::LinuxUI::instance();
  20   if (ui)
  21     ui->AddWindowButtonOrderObserver(this);
  22 }
  23
  24 OpaqueBrowserFrameViewLinux::~OpaqueBrowserFrameViewLinux() {
  25   views::LinuxUI* ui = views::LinuxUI::instance();
  26   if (ui)
  27     ui->RemoveWindowButtonOrderObserver(this);
  28 }
  29
  30 ///////////////////////////////////////////////////////////////////////////////
  31 // OpaqueBrowserFrameViewLinux,
  32 //     views::WindowButtonOrderObserver implementation:
  33
  34 void OpaqueBrowserFrameViewLinux::OnWindowButtonOrderingChange(
  35     const std::vector<views::FrameButton>& leading_buttons,
  36     const std::vector<views::FrameButton>& trailing_buttons) {
  37   layout_->SetButtonOrdering(leading_buttons, trailing_buttons);
  38
  39   // We can receive OnWindowButtonOrderingChange events before we've been added
  40   // to a Widget. We need a Widget because layout crashes due to dependencies
  41   // on a ui::ThemeProvider().
  42   if (view_->GetWidget()) {
  43     view_->Layout();
  44     view_->SchedulePaint();
  45   }
  46 }
  47
  48 ///////////////////////////////////////////////////////////////////////////////
  49 // OpaqueBrowserFrameViewObserver:
  50
  51 // static
  52 OpaqueBrowserFrameViewPlatformSpecific*
  53 OpaqueBrowserFrameViewPlatformSpecific::Create(
  54       OpaqueBrowserFrameView* view,
  55       OpaqueBrowserFrameViewLayout* layout) {
  56   return new OpaqueBrowserFrameViewLinux(view, layout);
  57 }