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| 1 // Copyright 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 "ash/accelerators/exit_warning_handler.h" | |
| 6 | |
| 7 #include "ash/common/shell_delegate.h" | |
| 8 #include "ash/common/shell_window_ids.h" | |
| 9 #include "ash/common/wm_root_window_controller.h" | |
| 10 #include "ash/common/wm_shell.h" | |
| 11 #include "ash/common/wm_window.h" | |
| 12 #include "base/strings/utf_string_conversions.h" | |
| 13 #include "base/time/time.h" | |
| 14 #include "base/timer/timer.h" | |
| 15 #include "grit/ash_strings.h" | |
| 16 #include "ui/accessibility/ax_view_state.h" | |
| 17 #include "ui/base/l10n/l10n_util.h" | |
| 18 #include "ui/base/resource/resource_bundle.h" | |
| 19 #include "ui/gfx/canvas.h" | |
| 20 #include "ui/gfx/font_list.h" | |
| 21 #include "ui/gfx/text_utils.h" | |
| 22 #include "ui/views/controls/label.h" | |
| 23 #include "ui/views/layout/fill_layout.h" | |
| 24 #include "ui/views/view.h" | |
| 25 #include "ui/views/widget/widget.h" | |
| 26 #include "ui/views/widget/widget_delegate.h" | |
| 27 | |
| 28 namespace ash { | |
| 29 namespace { | |
| 30 | |
| 31 const int64_t kTimeOutMilliseconds = 2000; | |
| 32 // Color of the text of the warning message. | |
| 33 const SkColor kTextColor = SK_ColorWHITE; | |
| 34 // Color of the window background. | |
| 35 const SkColor kWindowBackgroundColor = SkColorSetARGB(0xC0, 0x0, 0x0, 0x0); | |
| 36 // Radius of the rounded corners of the window. | |
| 37 const int kWindowCornerRadius = 2; | |
| 38 const int kHorizontalMarginAroundText = 100; | |
| 39 const int kVerticalMarginAroundText = 100; | |
| 40 | |
| 41 class ExitWarningWidgetDelegateView : public views::WidgetDelegateView { | |
| 42 public: | |
| 43 ExitWarningWidgetDelegateView() : text_width_(0), width_(0), height_(0) { | |
| 44 #ifdef OS_CHROMEOS | |
| 45 text_ = l10n_util::GetStringUTF16(IDS_ASH_SIGN_OUT_WARNING_POPUP_TEXT); | |
| 46 accessible_name_ = l10n_util::GetStringUTF16( | |
| 47 IDS_ASH_SIGN_OUT_WARNING_POPUP_TEXT_ACCESSIBLE); | |
| 48 #else | |
| 49 text_ = l10n_util::GetStringUTF16(IDS_ASH_EXIT_WARNING_POPUP_TEXT); | |
| 50 accessible_name_ = | |
| 51 l10n_util::GetStringUTF16(IDS_ASH_EXIT_WARNING_POPUP_TEXT_ACCESSIBLE); | |
| 52 #endif | |
| 53 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); | |
| 54 const gfx::FontList& font_list = | |
| 55 rb.GetFontList(ui::ResourceBundle::LargeFont); | |
| 56 text_width_ = gfx::GetStringWidth(text_, font_list); | |
| 57 width_ = text_width_ + kHorizontalMarginAroundText; | |
| 58 height_ = font_list.GetHeight() + kVerticalMarginAroundText; | |
| 59 views::Label* label = new views::Label(); | |
| 60 label->SetText(text_); | |
| 61 label->SetHorizontalAlignment(gfx::ALIGN_CENTER); | |
| 62 label->SetFontList(font_list); | |
| 63 label->SetEnabledColor(kTextColor); | |
| 64 label->SetDisabledColor(kTextColor); | |
| 65 label->SetAutoColorReadabilityEnabled(false); | |
| 66 label->SetSubpixelRenderingEnabled(false); | |
| 67 AddChildView(label); | |
| 68 SetLayoutManager(new views::FillLayout); | |
| 69 } | |
| 70 | |
| 71 gfx::Size GetPreferredSize() const override { | |
| 72 return gfx::Size(width_, height_); | |
| 73 } | |
| 74 | |
| 75 void OnPaint(gfx::Canvas* canvas) override { | |
| 76 SkPaint paint; | |
| 77 paint.setStyle(SkPaint::kFill_Style); | |
| 78 paint.setColor(kWindowBackgroundColor); | |
| 79 canvas->DrawRoundRect(GetLocalBounds(), kWindowCornerRadius, paint); | |
| 80 views::WidgetDelegateView::OnPaint(canvas); | |
| 81 } | |
| 82 | |
| 83 void GetAccessibleState(ui::AXViewState* state) override { | |
| 84 state->name = accessible_name_; | |
| 85 state->role = ui::AX_ROLE_ALERT; | |
| 86 } | |
| 87 | |
| 88 private: | |
| 89 base::string16 text_; | |
| 90 base::string16 accessible_name_; | |
| 91 int text_width_; | |
| 92 int width_; | |
| 93 int height_; | |
| 94 | |
| 95 DISALLOW_COPY_AND_ASSIGN(ExitWarningWidgetDelegateView); | |
| 96 }; | |
| 97 | |
| 98 } // namespace | |
| 99 | |
| 100 ExitWarningHandler::ExitWarningHandler() | |
| 101 : state_(IDLE), stub_timer_for_test_(false) {} | |
| 102 | |
| 103 ExitWarningHandler::~ExitWarningHandler() { | |
| 104 // Note: If a timer is outstanding, it is stopped in its destructor. | |
| 105 Hide(); | |
| 106 } | |
| 107 | |
| 108 void ExitWarningHandler::HandleAccelerator() { | |
| 109 switch (state_) { | |
| 110 case IDLE: | |
| 111 state_ = WAIT_FOR_DOUBLE_PRESS; | |
| 112 Show(); | |
| 113 StartTimer(); | |
| 114 WmShell::Get()->RecordUserMetricsAction(UMA_ACCEL_EXIT_FIRST_Q); | |
| 115 break; | |
| 116 case WAIT_FOR_DOUBLE_PRESS: | |
| 117 state_ = EXITING; | |
| 118 CancelTimer(); | |
| 119 Hide(); | |
| 120 WmShell::Get()->RecordUserMetricsAction(UMA_ACCEL_EXIT_SECOND_Q); | |
| 121 WmShell::Get()->delegate()->Exit(); | |
| 122 break; | |
| 123 case EXITING: | |
| 124 break; | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 void ExitWarningHandler::TimerAction() { | |
| 129 Hide(); | |
| 130 if (state_ == WAIT_FOR_DOUBLE_PRESS) | |
| 131 state_ = IDLE; | |
| 132 } | |
| 133 | |
| 134 void ExitWarningHandler::StartTimer() { | |
| 135 if (stub_timer_for_test_) | |
| 136 return; | |
| 137 timer_.Start(FROM_HERE, | |
| 138 base::TimeDelta::FromMilliseconds(kTimeOutMilliseconds), this, | |
| 139 &ExitWarningHandler::TimerAction); | |
| 140 } | |
| 141 | |
| 142 void ExitWarningHandler::CancelTimer() { | |
| 143 timer_.Stop(); | |
| 144 } | |
| 145 | |
| 146 void ExitWarningHandler::Show() { | |
| 147 if (widget_) | |
| 148 return; | |
| 149 WmWindow* root_window = WmShell::Get()->GetRootWindowForNewWindows(); | |
| 150 ExitWarningWidgetDelegateView* delegate = new ExitWarningWidgetDelegateView; | |
| 151 gfx::Size rs = root_window->GetBounds().size(); | |
| 152 gfx::Size ps = delegate->GetPreferredSize(); | |
| 153 gfx::Rect bounds((rs.width() - ps.width()) / 2, | |
| 154 (rs.height() - ps.height()) / 3, ps.width(), ps.height()); | |
| 155 views::Widget::InitParams params; | |
| 156 params.type = views::Widget::InitParams::TYPE_POPUP; | |
| 157 params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW; | |
| 158 params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET; | |
| 159 params.accept_events = false; | |
| 160 params.keep_on_top = true; | |
| 161 params.remove_standard_frame = true; | |
| 162 params.delegate = delegate; | |
| 163 params.bounds = bounds; | |
| 164 params.name = "ExitWarningWindow"; | |
| 165 widget_.reset(new views::Widget); | |
| 166 root_window->GetRootWindowController()->ConfigureWidgetInitParamsForContainer( | |
| 167 widget_.get(), kShellWindowId_SettingBubbleContainer, ¶ms); | |
| 168 widget_->Init(params); | |
| 169 widget_->SetContentsView(delegate); | |
| 170 widget_->Show(); | |
| 171 | |
| 172 delegate->NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true); | |
| 173 } | |
| 174 | |
| 175 void ExitWarningHandler::Hide() { | |
| 176 widget_.reset(); | |
| 177 } | |
| 178 | |
| 179 } // namespace ash | |
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