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      1 // Copyright (c) 2012 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 "ash/shell/toplevel_window.h"
      6 
      7 #include "ash/display/display_controller.h"
      8 #include "ash/screen_ash.h"
      9 #include "ash/shell.h"
     10 #include "ash/wm/window_positioner.h"
     11 #include "ash/wm/window_state.h"
     12 #include "base/strings/utf_string_conversions.h"
     13 #include "ui/aura/root_window.h"
     14 #include "ui/aura/window.h"
     15 #include "ui/gfx/canvas.h"
     16 #include "ui/views/widget/widget.h"
     17 
     18 namespace ash {
     19 namespace shell {
     20 namespace {
     21 
     22 struct SavedState {
     23   gfx::Rect bounds;
     24   ui::WindowShowState show_state;
     25 };
     26 
     27 // The last window state in ash_shell. We don't bother deleting
     28 // this on shutdown.
     29 SavedState* saved_state = NULL;
     30 
     31 }  // namespace
     32 
     33 ToplevelWindow::CreateParams::CreateParams()
     34     : can_resize(false),
     35       can_maximize(false) {
     36 }
     37 
     38 // static
     39 views::Widget* ToplevelWindow::CreateToplevelWindow(
     40     const CreateParams& params) {
     41   views::Widget* widget = views::Widget::CreateWindowWithContext(
     42       new ToplevelWindow(params), Shell::GetPrimaryRootWindow());
     43   widget->GetNativeView()->SetName("Examples:ToplevelWindow");
     44   wm::WindowState* window_state = wm::GetWindowState(widget->GetNativeView());
     45   window_state->set_window_position_managed(true);
     46   widget->Show();
     47   return widget;
     48 }
     49 
     50 // static
     51 void ToplevelWindow::ClearSavedStateForTest() {
     52   delete saved_state;
     53   saved_state = NULL;
     54 }
     55 
     56 ToplevelWindow::ToplevelWindow(const CreateParams& params) : params_(params) {
     57 }
     58 
     59 ToplevelWindow::~ToplevelWindow() {
     60 }
     61 
     62 void ToplevelWindow::OnPaint(gfx::Canvas* canvas) {
     63   canvas->FillRect(GetLocalBounds(), SK_ColorDKGRAY);
     64 }
     65 
     66 base::string16 ToplevelWindow::GetWindowTitle() const {
     67   return ASCIIToUTF16("Examples: Toplevel Window");
     68 }
     69 
     70 void ToplevelWindow::SaveWindowPlacement(const gfx::Rect& bounds,
     71                                          ui::WindowShowState show_state) {
     72   if (!saved_state)
     73     saved_state = new SavedState;
     74   saved_state->bounds = bounds;
     75   saved_state->show_state = show_state;
     76 }
     77 
     78 bool ToplevelWindow::GetSavedWindowPlacement(
     79     const views::Widget* widget,
     80     gfx::Rect* bounds,
     81     ui::WindowShowState* show_state) const {
     82   bool is_saved_bounds = !!saved_state;
     83   if (saved_state) {
     84     *bounds = saved_state->bounds;
     85     *show_state = saved_state->show_state;
     86   } else {
     87     // Initial default bounds.
     88     bounds->SetRect(10, 150, 300, 300);
     89   }
     90   ash::WindowPositioner::GetBoundsAndShowStateForNewWindow(
     91       ash::Shell::GetScreen(),
     92       NULL,
     93       is_saved_bounds,
     94       *show_state,
     95       bounds,
     96       show_state);
     97   return true;
     98 }
     99 
    100 views::View* ToplevelWindow::GetContentsView() {
    101   return this;
    102 }
    103 
    104 bool ToplevelWindow::CanResize() const {
    105   return params_.can_resize;
    106 }
    107 
    108 bool ToplevelWindow::CanMaximize() const {
    109   return params_.can_maximize;
    110 }
    111 
    112 }  // namespace shell
    113 }  // namespace ash
    114