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/keyboard_overlay/keyboard_overlay_view.h" 6 7 #include "ash/keyboard_overlay/keyboard_overlay_delegate.h" 8 #include "ash/shell.h" 9 #include "base/strings/utf_string_conversions.h" 10 #include "content/public/browser/browser_context.h" 11 #include "grit/ash_strings.h" 12 #include "ui/base/l10n/l10n_util.h" 13 #include "ui/events/event.h" 14 #include "ui/gfx/screen.h" 15 #include "ui/views/widget/widget.h" 16 #include "ui/web_dialogs/web_dialog_delegate.h" 17 18 using ui::WebDialogDelegate; 19 20 namespace { 21 22 // Keys to invoke Cancel (Escape, Ctrl+Alt+/, or Shift+Ctrl+Alt+/, Help, F14). 23 const ash::KeyboardOverlayView::KeyEventData kCancelKeys[] = { 24 { ui::VKEY_ESCAPE, ui::EF_NONE}, 25 { ui::VKEY_OEM_2, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN }, 26 { ui::VKEY_OEM_2, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN }, 27 { ui::VKEY_HELP, ui::EF_NONE }, 28 { ui::VKEY_F14, ui::EF_NONE }, 29 }; 30 31 } 32 33 namespace ash { 34 35 KeyboardOverlayView::KeyboardOverlayView( 36 content::BrowserContext* context, 37 WebDialogDelegate* delegate, 38 WebContentsHandler* handler) 39 : views::WebDialogView(context, delegate, handler) { 40 } 41 42 KeyboardOverlayView::~KeyboardOverlayView() { 43 } 44 45 void KeyboardOverlayView::Cancel() { 46 Shell::GetInstance()->overlay_filter()->Deactivate(this); 47 views::Widget* widget = GetWidget(); 48 if (widget) 49 widget->Close(); 50 } 51 52 bool KeyboardOverlayView::IsCancelingKeyEvent(ui::KeyEvent* event) { 53 if (event->type() != ui::ET_KEY_PRESSED) 54 return false; 55 // Ignore the caps lock state. 56 const int flags = (event->flags() & ~ui::EF_CAPS_LOCK_DOWN); 57 for (size_t i = 0; i < arraysize(kCancelKeys); ++i) { 58 if ((kCancelKeys[i].key_code == event->key_code()) && 59 (kCancelKeys[i].flags == flags)) 60 return true; 61 } 62 return false; 63 } 64 65 aura::Window* KeyboardOverlayView::GetWindow() { 66 return GetWidget()->GetNativeWindow(); 67 } 68 69 // static 70 void KeyboardOverlayView::ShowDialog( 71 content::BrowserContext* context, 72 WebContentsHandler* handler, 73 const GURL& url) { 74 if (Shell::GetInstance()->overlay_filter()->IsActive()) 75 return; 76 77 KeyboardOverlayDelegate* delegate = new KeyboardOverlayDelegate( 78 l10n_util::GetStringUTF16(IDS_ASH_KEYBOARD_OVERLAY_TITLE), url); 79 KeyboardOverlayView* view = 80 new KeyboardOverlayView(context, delegate, handler); 81 delegate->Show(view); 82 83 Shell::GetInstance()->overlay_filter()->Activate(view); 84 } 85 86 void KeyboardOverlayView::WindowClosing() { 87 Cancel(); 88 } 89 90 // static 91 void KeyboardOverlayView::GetCancelingKeysForTesting( 92 std::vector<KeyboardOverlayView::KeyEventData>* canceling_keys) { 93 CHECK(canceling_keys); 94 canceling_keys->clear(); 95 for (size_t i = 0; i < arraysize(kCancelKeys); ++i) 96 canceling_keys->push_back(kCancelKeys[i]); 97 } 98 99 } // namespace ash 100