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/themes/theme_service.h"
   8 #include "chrome/browser/themes/theme_service_factory.h"
   9 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
  10 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
  11 #include "ui/views/linux_ui/linux_ui.h"
  12
  13 ///////////////////////////////////////////////////////////////////////////////
  14 // OpaqueBrowserFrameViewLinux, public:
  15
  16 OpaqueBrowserFrameViewLinux::OpaqueBrowserFrameViewLinux(
  17     OpaqueBrowserFrameView* view,
  18     OpaqueBrowserFrameViewLayout* layout,
  19     Profile* profile)
  20     : view_(view),
  21       layout_(layout),
  22       theme_service_(ThemeServiceFactory::GetForProfile(profile)) {
  23   views::LinuxUI* ui = views::LinuxUI::instance();
  24   if (ui)
  25     ui->AddWindowButtonOrderObserver(this);
  26 }
  27
  28 OpaqueBrowserFrameViewLinux::~OpaqueBrowserFrameViewLinux() {
  29   views::LinuxUI* ui = views::LinuxUI::instance();
  30   if (ui)
  31     ui->RemoveWindowButtonOrderObserver(this);
  32 }
  33
  34 bool OpaqueBrowserFrameViewLinux::IsUsingSystemTheme() {
  35   // On X11, this does the correct thing. On Windows, UsingSystemTheme() will
  36   // return true when using the default blue theme too.
  37   return theme_service_->UsingSystemTheme();
  38 }
  39
  40 ///////////////////////////////////////////////////////////////////////////////
  41 // OpaqueBrowserFrameViewLinux,
  42 //     views::WindowButtonOrderObserver implementation:
  43
  44 void OpaqueBrowserFrameViewLinux::OnWindowButtonOrderingChange(
  45     const std::vector<views::FrameButton>& leading_buttons,
  46     const std::vector<views::FrameButton>& trailing_buttons) {
  47   layout_->SetButtonOrdering(leading_buttons, trailing_buttons);
  48
  49   // We can receive OnWindowButtonOrderingChange events before we've been added
  50   // to a Widget. We need a Widget because layout crashes due to dependencies
  51   // on a ui::ThemeProvider().
  52   if (view_->GetWidget()) {
  53     view_->Layout();
  54     view_->SchedulePaint();
  55   }
  56 }
  57
  58 ///////////////////////////////////////////////////////////////////////////////
  59 // OpaqueBrowserFrameViewObserver:
  60
  61 // static
  62 OpaqueBrowserFrameViewPlatformSpecific*
  63 OpaqueBrowserFrameViewPlatformSpecific::Create(
  64       OpaqueBrowserFrameView* view,
  65       OpaqueBrowserFrameViewLayout* layout,
  66       Profile* profile) {
  67   return new OpaqueBrowserFrameViewLinux(view, layout, profile);
  68 }