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 //     OpaqueBrowserFrameViewPlatformSpecific implementation:
  33
  34 bool OpaqueBrowserFrameViewLinux::ShouldShowCaptionButtons() const {
  35   // On Ubuntu Unity, if the window is maximized, the system will provide
  36   // caption buttons, so Chrome should not add its own.
  37   views::LinuxUI* ui = views::LinuxUI::instance();
  38   return !(view_->IsMaximized() && ui && ui->UnityIsRunning());
  39 }
  40
  41 bool OpaqueBrowserFrameViewLinux::ShouldShowTitleBar() const {
  42   // On Ubuntu Unity, if the window is maximized, the system will provide
  43   // a title bar, so Chrome should not add its own.
  44   views::LinuxUI* ui = views::LinuxUI::instance();
  45   return !(view_->IsMaximized() && ui && ui->UnityIsRunning());
  46 }
  47
  48 ///////////////////////////////////////////////////////////////////////////////
  49 // OpaqueBrowserFrameViewLinux,
  50 //     views::WindowButtonOrderObserver implementation:
  51
  52 void OpaqueBrowserFrameViewLinux::OnWindowButtonOrderingChange(
  53     const std::vector<views::FrameButton>& leading_buttons,
  54     const std::vector<views::FrameButton>& trailing_buttons) {
  55   layout_->SetButtonOrdering(leading_buttons, trailing_buttons);
  56
  57   // We can receive OnWindowButtonOrderingChange events before we've been added
  58   // to a Widget. We need a Widget because layout crashes due to dependencies
  59   // on a ui::ThemeProvider().
  60   if (view_->GetWidget()) {
  61     view_->Layout();
  62     view_->SchedulePaint();
  63   }
  64 }
  65
  66 ///////////////////////////////////////////////////////////////////////////////
  67 // OpaqueBrowserFrameViewObserver:
  68
  69 // static
  70 OpaqueBrowserFrameViewPlatformSpecific*
  71 OpaqueBrowserFrameViewPlatformSpecific::Create(
  72       OpaqueBrowserFrameView* view,
  73       OpaqueBrowserFrameViewLayout* layout) {
  74   return new OpaqueBrowserFrameViewLinux(view, layout);
  75 }