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 "chrome/browser/ui/views/fullscreen_exit_bubble_views.h"
6
7#include "base/message_loop/message_loop.h"
8#include "base/strings/utf_string_conversions.h"
9#include "chrome/app/chrome_command_ids.h"
10#include "chrome/browser/chrome_notification_types.h"
11#include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
12#include "chrome/browser/ui/views/frame/browser_view.h"
13#include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
14#include "chrome/browser/ui/views/frame/top_container_view.h"
15#include "chrome/grit/generated_resources.h"
16#include "content/public/browser/notification_service.h"
17#include "ui/base/l10n/l10n_util.h"
18#include "ui/base/resource/resource_bundle.h"
19#include "ui/events/keycodes/keyboard_codes.h"
20#include "ui/gfx/animation/slide_animation.h"
21#include "ui/gfx/canvas.h"
22#include "ui/gfx/screen.h"
23#include "ui/strings/grit/ui_strings.h"
24#include "ui/views/bubble/bubble_border.h"
25#include "ui/views/controls/button/label_button.h"
26#include "ui/views/controls/link.h"
27#include "ui/views/controls/link_listener.h"
28#include "ui/views/layout/box_layout.h"
29#include "ui/views/layout/grid_layout.h"
30#include "ui/views/view.h"
31#include "ui/views/widget/widget.h"
32#include "url/gurl.h"
33
34#if defined(OS_WIN)
35#include "ui/base/l10n/l10n_util_win.h"
36#endif
37
38// FullscreenExitView ----------------------------------------------------------
39
40namespace {
41
42// Space between the site info label and the buttons / link.
43const int kMiddlePaddingPx = 30;
44
45class ButtonView : public views::View {
46 public:
47  ButtonView(views::ButtonListener* listener, int between_button_spacing);
48  virtual ~ButtonView();
49
50  // Returns an empty size when the view is not visible.
51  virtual gfx::Size GetPreferredSize() const OVERRIDE;
52
53  views::LabelButton* accept_button() const { return accept_button_; }
54  views::LabelButton* deny_button() const { return deny_button_; }
55
56 private:
57  views::LabelButton* accept_button_;
58  views::LabelButton* deny_button_;
59
60  DISALLOW_COPY_AND_ASSIGN(ButtonView);
61};
62
63ButtonView::ButtonView(views::ButtonListener* listener,
64                       int between_button_spacing)
65    : accept_button_(NULL),
66      deny_button_(NULL) {
67  accept_button_ = new views::LabelButton(listener, base::string16());
68  accept_button_->SetStyle(views::Button::STYLE_BUTTON);
69  accept_button_->SetFocusable(false);
70  AddChildView(accept_button_);
71
72  deny_button_ = new views::LabelButton(listener, base::string16());
73  deny_button_->SetStyle(views::Button::STYLE_BUTTON);
74  deny_button_->SetFocusable(false);
75  AddChildView(deny_button_);
76
77  SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0,
78                                        between_button_spacing));
79}
80
81ButtonView::~ButtonView() {
82}
83
84gfx::Size ButtonView::GetPreferredSize() const {
85  return visible() ? views::View::GetPreferredSize() : gfx::Size();
86}
87
88}  // namespace
89
90class FullscreenExitBubbleViews::FullscreenExitView
91    : public views::View,
92      public views::ButtonListener,
93      public views::LinkListener {
94 public:
95  FullscreenExitView(FullscreenExitBubbleViews* bubble,
96                     const base::string16& accelerator,
97                     const GURL& url,
98                     FullscreenExitBubbleType bubble_type);
99  virtual ~FullscreenExitView();
100
101  // views::ButtonListener
102  virtual void ButtonPressed(views::Button* sender,
103                             const ui::Event& event) OVERRIDE;
104
105  // views::LinkListener
106  virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
107
108  void UpdateContent(const GURL& url, FullscreenExitBubbleType bubble_type);
109
110 private:
111  FullscreenExitBubbleViews* bubble_;
112
113  // Clickable hint text for exiting fullscreen mode.
114  views::Link* link_;
115  // Instruction for exiting mouse lock.
116  views::Label* mouse_lock_exit_instruction_;
117  // Informational label: 'www.foo.com has gone fullscreen'.
118  views::Label* message_label_;
119  ButtonView* button_view_;
120  const base::string16 browser_fullscreen_exit_accelerator_;
121
122  DISALLOW_COPY_AND_ASSIGN(FullscreenExitView);
123};
124
125FullscreenExitBubbleViews::FullscreenExitView::FullscreenExitView(
126    FullscreenExitBubbleViews* bubble,
127    const base::string16& accelerator,
128    const GURL& url,
129    FullscreenExitBubbleType bubble_type)
130    : bubble_(bubble),
131      link_(NULL),
132      mouse_lock_exit_instruction_(NULL),
133      message_label_(NULL),
134      button_view_(NULL),
135      browser_fullscreen_exit_accelerator_(accelerator) {
136  scoped_ptr<views::BubbleBorder> bubble_border(
137      new views::BubbleBorder(views::BubbleBorder::NONE,
138                              views::BubbleBorder::BIG_SHADOW,
139                              SK_ColorWHITE));
140  set_background(new views::BubbleBackground(bubble_border.get()));
141  SetBorder(bubble_border.PassAs<views::Border>());
142  SetFocusable(false);
143
144  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
145  const gfx::FontList& medium_font_list =
146      rb.GetFontList(ui::ResourceBundle::MediumFont);
147  message_label_ = new views::Label(base::string16(), medium_font_list);
148
149  mouse_lock_exit_instruction_ =
150      new views::Label(bubble_->GetInstructionText(), medium_font_list);
151  mouse_lock_exit_instruction_->set_collapse_when_hidden(true);
152
153  link_ = new views::Link();
154  link_->set_collapse_when_hidden(true);
155  link_->SetFocusable(false);
156#if defined(OS_CHROMEOS)
157  // On CrOS, the link text doesn't change, since it doesn't show the shortcut.
158  link_->SetText(l10n_util::GetStringUTF16(IDS_EXIT_FULLSCREEN_MODE));
159#endif
160  link_->set_listener(this);
161  link_->SetFontList(medium_font_list);
162  link_->SetPressedColor(message_label_->enabled_color());
163  link_->SetEnabledColor(message_label_->enabled_color());
164  link_->SetVisible(false);
165
166  link_->SetBackgroundColor(background()->get_color());
167  message_label_->SetBackgroundColor(background()->get_color());
168  mouse_lock_exit_instruction_->SetBackgroundColor(background()->get_color());
169
170  button_view_ = new ButtonView(this, kPaddingPx);
171  button_view_->accept_button()->SetText(bubble->GetAllowButtonText());
172
173  views::GridLayout* layout = new views::GridLayout(this);
174  views::ColumnSet* columns = layout->AddColumnSet(0);
175  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER, 0,
176                     views::GridLayout::USE_PREF, 0, 0);
177  columns->AddPaddingColumn(1, kMiddlePaddingPx);
178  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER, 0,
179                     views::GridLayout::USE_PREF, 0, 0);
180  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER, 0,
181                     views::GridLayout::USE_PREF, 0, 0);
182  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER, 0,
183                     views::GridLayout::USE_PREF, 0, 0);
184
185  layout->StartRow(0, 0);
186  layout->AddView(message_label_);
187  layout->AddView(button_view_);
188  layout->AddView(mouse_lock_exit_instruction_);
189  layout->AddView(link_);
190
191  gfx::Insets padding(kPaddingPx, kPaddingPx, kPaddingPx, kPaddingPx);
192  padding += GetInsets();
193  layout->SetInsets(padding);
194  SetLayoutManager(layout);
195
196  UpdateContent(url, bubble_type);
197}
198
199FullscreenExitBubbleViews::FullscreenExitView::~FullscreenExitView() {
200}
201
202void FullscreenExitBubbleViews::FullscreenExitView::ButtonPressed(
203    views::Button* sender,
204    const ui::Event& event) {
205  if (sender == button_view_->accept_button())
206    bubble_->Accept();
207  else
208    bubble_->Cancel();
209}
210
211void FullscreenExitBubbleViews::FullscreenExitView::LinkClicked(
212    views::Link* link,
213    int event_flags) {
214  bubble_->ToggleFullscreen();
215}
216
217void FullscreenExitBubbleViews::FullscreenExitView::UpdateContent(
218    const GURL& url,
219    FullscreenExitBubbleType bubble_type) {
220  DCHECK_NE(FEB_TYPE_NONE, bubble_type);
221
222  message_label_->SetText(bubble_->GetCurrentMessageText());
223  if (fullscreen_bubble::ShowButtonsForType(bubble_type)) {
224    link_->SetVisible(false);
225    mouse_lock_exit_instruction_->SetVisible(false);
226    button_view_->SetVisible(true);
227    button_view_->deny_button()->SetText(bubble_->GetCurrentDenyButtonText());
228    button_view_->deny_button()->SetMinSize(gfx::Size());
229  } else {
230    bool link_visible = true;
231    base::string16 accelerator;
232    if (bubble_type == FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION ||
233        bubble_type == FEB_TYPE_BROWSER_EXTENSION_FULLSCREEN_EXIT_INSTRUCTION) {
234      accelerator = browser_fullscreen_exit_accelerator_;
235    } else if (bubble_type == FEB_TYPE_FULLSCREEN_EXIT_INSTRUCTION) {
236      accelerator = l10n_util::GetStringUTF16(IDS_APP_ESC_KEY);
237    } else {
238      link_visible = false;
239    }
240#if !defined(OS_CHROMEOS)
241    if (link_visible) {
242      link_->SetText(
243          l10n_util::GetStringUTF16(IDS_EXIT_FULLSCREEN_MODE) +
244          base::UTF8ToUTF16(" ") +
245          l10n_util::GetStringFUTF16(IDS_EXIT_FULLSCREEN_MODE_ACCELERATOR,
246              accelerator));
247    }
248#endif
249    link_->SetVisible(link_visible);
250    mouse_lock_exit_instruction_->SetVisible(!link_visible);
251    button_view_->SetVisible(false);
252  }
253}
254
255
256// FullscreenExitBubbleViews ---------------------------------------------------
257
258FullscreenExitBubbleViews::FullscreenExitBubbleViews(
259    BrowserView* browser_view,
260    const GURL& url,
261    FullscreenExitBubbleType bubble_type)
262    : FullscreenExitBubble(browser_view->browser(), url, bubble_type),
263      browser_view_(browser_view),
264      popup_(NULL),
265      animation_(new gfx::SlideAnimation(this)),
266      animated_attribute_(ANIMATED_ATTRIBUTE_BOUNDS) {
267  animation_->Reset(1);
268
269  // Create the contents view.
270  ui::Accelerator accelerator(ui::VKEY_UNKNOWN, ui::EF_NONE);
271  bool got_accelerator = browser_view_->GetWidget()->GetAccelerator(
272      IDC_FULLSCREEN, &accelerator);
273  DCHECK(got_accelerator);
274  view_ = new FullscreenExitView(
275      this, accelerator.GetShortcutText(), url, bubble_type_);
276
277  // TODO(yzshen): Change to use the new views bubble, BubbleDelegateView.
278  // TODO(pkotwicz): When this becomes a views bubble, make sure that this
279  // bubble is ignored by ImmersiveModeControllerAsh::BubbleManager.
280  // Initialize the popup.
281  popup_ = new views::Widget;
282  views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
283  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
284  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
285  params.parent = browser_view_->GetWidget()->GetNativeView();
286  params.bounds = GetPopupRect(false);
287  popup_->Init(params);
288  gfx::Size size = GetPopupRect(true).size();
289  popup_->SetContentsView(view_);
290  // We set layout manager to NULL to prevent the widget from sizing its
291  // contents to the same size as itself. This prevents the widget contents from
292  // shrinking while we animate the height of the popup to give the impression
293  // that it is sliding off the top of the screen.
294  popup_->GetRootView()->SetLayoutManager(NULL);
295  view_->SetBounds(0, 0, size.width(), size.height());
296  popup_->ShowInactive();  // This does not activate the popup.
297
298  popup_->AddObserver(this);
299
300  registrar_.Add(
301      this,
302      chrome::NOTIFICATION_FULLSCREEN_CHANGED,
303      content::Source<FullscreenController>(
304          browser_view_->browser()->fullscreen_controller()));
305
306  UpdateForImmersiveState();
307}
308
309FullscreenExitBubbleViews::~FullscreenExitBubbleViews() {
310  popup_->RemoveObserver(this);
311
312  // This is tricky.  We may be in an ATL message handler stack, in which case
313  // the popup cannot be deleted yet.  We also can't set the popup's ownership
314  // model to NATIVE_WIDGET_OWNS_WIDGET because if the user closed the last tab
315  // while in fullscreen mode, Windows has already destroyed the popup HWND by
316  // the time we get here, and thus either the popup will already have been
317  // deleted (if we set this in our constructor) or the popup will never get
318  // another OnFinalMessage() call (if not, as currently).  So instead, we tell
319  // the popup to synchronously hide, and then asynchronously close and delete
320  // itself.
321  popup_->Close();
322  base::MessageLoop::current()->DeleteSoon(FROM_HERE, popup_);
323}
324
325void FullscreenExitBubbleViews::UpdateContent(
326    const GURL& url,
327    FullscreenExitBubbleType bubble_type) {
328  DCHECK_NE(FEB_TYPE_NONE, bubble_type);
329  if (bubble_type_ == bubble_type && url_ == url)
330    return;
331
332  url_ = url;
333  bubble_type_ = bubble_type;
334  view_->UpdateContent(url_, bubble_type_);
335
336  gfx::Size size = GetPopupRect(true).size();
337  view_->SetSize(size);
338  popup_->SetBounds(GetPopupRect(false));
339  Show();
340
341  // Stop watching the mouse even if UpdateMouseWatcher() will start watching
342  // it again so that the popup with the new content is visible for at least
343  // |kInitialDelayMs|.
344  StopWatchingMouse();
345
346  UpdateMouseWatcher();
347}
348
349void FullscreenExitBubbleViews::RepositionIfVisible() {
350  if (popup_->IsVisible())
351    UpdateBounds();
352}
353
354void FullscreenExitBubbleViews::UpdateMouseWatcher() {
355  bool should_watch_mouse = false;
356  if (popup_->IsVisible())
357    should_watch_mouse = !fullscreen_bubble::ShowButtonsForType(bubble_type_);
358  else
359    should_watch_mouse = CanMouseTriggerSlideIn();
360
361  if (should_watch_mouse == IsWatchingMouse())
362    return;
363
364  if (should_watch_mouse)
365    StartWatchingMouse();
366  else
367    StopWatchingMouse();
368}
369
370void FullscreenExitBubbleViews::UpdateForImmersiveState() {
371  AnimatedAttribute expected_animated_attribute =
372      browser_view_->immersive_mode_controller()->IsEnabled() ?
373          ANIMATED_ATTRIBUTE_OPACITY : ANIMATED_ATTRIBUTE_BOUNDS;
374  if (animated_attribute_ != expected_animated_attribute) {
375    // If an animation is currently in progress, skip to the end because
376    // switching the animated attribute midway through the animation looks
377    // weird.
378    animation_->End();
379
380    animated_attribute_ = expected_animated_attribute;
381
382    // We may have finished hiding |popup_|. However, the bounds animation
383    // assumes |popup_| has the opacity when it is fully shown and the opacity
384    // animation assumes |popup_| has the bounds when |popup_| is fully shown.
385    if (animated_attribute_ == ANIMATED_ATTRIBUTE_BOUNDS)
386      popup_->SetOpacity(255);
387    else
388      UpdateBounds();
389  }
390
391  UpdateMouseWatcher();
392}
393
394void FullscreenExitBubbleViews::UpdateBounds() {
395  gfx::Rect popup_rect(GetPopupRect(false));
396  if (!popup_rect.IsEmpty()) {
397    popup_->SetBounds(popup_rect);
398    view_->SetY(popup_rect.height() - view_->height());
399  }
400}
401
402views::View* FullscreenExitBubbleViews::GetBrowserRootView() const {
403  return browser_view_->GetWidget()->GetRootView();
404}
405
406void FullscreenExitBubbleViews::AnimationProgressed(
407    const gfx::Animation* animation) {
408  if (animated_attribute_ == ANIMATED_ATTRIBUTE_OPACITY) {
409    int opacity = animation_->CurrentValueBetween(0, 255);
410    if (opacity == 0) {
411      popup_->Hide();
412    } else {
413      popup_->Show();
414      popup_->SetOpacity(opacity);
415    }
416  } else {
417    if (GetPopupRect(false).IsEmpty()) {
418      popup_->Hide();
419    } else {
420      UpdateBounds();
421      popup_->Show();
422    }
423  }
424}
425
426void FullscreenExitBubbleViews::AnimationEnded(
427    const gfx::Animation* animation) {
428  AnimationProgressed(animation);
429}
430
431gfx::Rect FullscreenExitBubbleViews::GetPopupRect(
432    bool ignore_animation_state) const {
433  gfx::Size size(view_->GetPreferredSize());
434  // NOTE: don't use the bounds of the root_view_. On linux GTK changing window
435  // size is async. Instead we use the size of the screen.
436  gfx::Screen* screen =
437      gfx::Screen::GetScreenFor(browser_view_->GetWidget()->GetNativeView());
438  gfx::Rect screen_bounds = screen->GetDisplayNearestWindow(
439      browser_view_->GetWidget()->GetNativeView()).bounds();
440  int x = screen_bounds.x() + (screen_bounds.width() - size.width()) / 2;
441
442  int top_container_bottom = screen_bounds.y();
443  if (browser_view_->immersive_mode_controller()->IsEnabled()) {
444    // Skip querying the top container height in non-immersive fullscreen
445    // because:
446    // - The top container height is always zero in non-immersive fullscreen.
447    // - Querying the top container height may return the height before entering
448    //   fullscreen because layout is disabled while entering fullscreen.
449    // A visual glitch due to the delayed layout is avoided in immersive
450    // fullscreen because entering fullscreen starts with the top container
451    // revealed. When revealed, the top container has the same height as before
452    // entering fullscreen.
453    top_container_bottom =
454        browser_view_->top_container()->GetBoundsInScreen().bottom();
455  }
456  int y = top_container_bottom + kPopupTopPx;
457
458  if (!ignore_animation_state &&
459      animated_attribute_ == ANIMATED_ATTRIBUTE_BOUNDS) {
460    int total_height = size.height() + kPopupTopPx;
461    int popup_bottom = animation_->CurrentValueBetween(total_height, 0);
462    int y_offset = std::min(popup_bottom, kPopupTopPx);
463    size.set_height(size.height() - popup_bottom + y_offset);
464    y -= y_offset;
465  }
466  return gfx::Rect(gfx::Point(x, y), size);
467}
468
469gfx::Point FullscreenExitBubbleViews::GetCursorScreenPoint() {
470  gfx::Point cursor_pos = gfx::Screen::GetScreenFor(
471      browser_view_->GetWidget()->GetNativeView())->GetCursorScreenPoint();
472  views::View::ConvertPointFromScreen(GetBrowserRootView(), &cursor_pos);
473  return cursor_pos;
474}
475
476bool FullscreenExitBubbleViews::WindowContainsPoint(gfx::Point pos) {
477  return GetBrowserRootView()->HitTestPoint(pos);
478}
479
480bool FullscreenExitBubbleViews::IsWindowActive() {
481  return browser_view_->GetWidget()->IsActive();
482}
483
484void FullscreenExitBubbleViews::Hide() {
485  animation_->SetSlideDuration(kSlideOutDurationMs);
486  animation_->Hide();
487}
488
489void FullscreenExitBubbleViews::Show() {
490  animation_->SetSlideDuration(kSlideInDurationMs);
491  animation_->Show();
492}
493
494bool FullscreenExitBubbleViews::IsAnimating() {
495  return animation_->is_animating();
496}
497
498bool FullscreenExitBubbleViews::CanMouseTriggerSlideIn() const {
499  return !browser_view_->immersive_mode_controller()->IsEnabled();
500}
501
502void FullscreenExitBubbleViews::Observe(
503    int type,
504    const content::NotificationSource& source,
505    const content::NotificationDetails& details) {
506  DCHECK_EQ(chrome::NOTIFICATION_FULLSCREEN_CHANGED, type);
507  UpdateForImmersiveState();
508}
509
510void FullscreenExitBubbleViews::OnWidgetVisibilityChanged(
511    views::Widget* widget,
512    bool visible) {
513  UpdateMouseWatcher();
514}
515