aura: brightness and volume bubble.

chrome/browser/chromeos/setting_level_bubble.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/setting_level_bubble.h"
 
 #include <algorithm>
 
 #include "chrome/browser/chromeos/login/background_view.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/webui_login_display.h"
 #include "chrome/browser/chromeos/setting_level_bubble_view.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_window.h"
-#include "chrome/browser/ui/views/bubble/bubble.h"
 #include "ui/gfx/screen.h"
+#include "views/bubble/bubble_delegate.h"
+#include "views/layout/fill_layout.h"
 #include "views/widget/root_view.h"
 
 using base::TimeDelta;
 using base::TimeTicks;
 using std::max;
 using std::min;
 
 namespace {
 
 // How long should the bubble be shown onscreen whenever the setting changes?
@@ skipping 48 matching lines @@
       window = GTK_WINDOW(background->GetNativeWindow());
 #endif
   }
 
   if (window)
     return views::Widget::GetWidgetForNativeWindow(window);
   else
     return WebUILoginDisplay::GetLoginWindow();
 }
 
+// static
+views::Widget* SettingLevelBubble::CreateBubble(
+    SkBitmap* increase_icon,
+    SkBitmap* decrease_icon,
+    SkBitmap* zero_icon,
+    double percent,
+    bool enabled) {
+  views::Widget* parent = GetToplevelWidget();
+  // Calculate the position in screen coordinates that the bubble should
+  // "point" at (since we use BubbleBorder::FLOAT, this position actually
+  // specifies the center of the bubble).
+  const gfx::Rect monitor_area =
+      gfx::Screen::GetMonitorAreaNearestWindow(parent->GetNativeView());
+  SettingLevelBubble* delegate =
+      new SettingLevelBubble(increase_icon, decrease_icon, zero_icon,
+                             monitor_area);
+  delegate->UpdateWithoutShowingBubble(percent, enabled);
+  delegate->set_close_on_esc(false);
+  views::Widget* widget = views::BubbleDelegateView::CreateBubble(
+      delegate, parent);
+  return widget;
+}
+
+void SettingLevelBubble::ShowBubble(views::Widget* widget,
+                                    double percent,
+                                    bool enabled) {
+  DCHECK(widget);
+  SettingLevelBubble* delegate =
+      static_cast<SettingLevelBubble*>(widget->widget_delegate());
+  delegate->UpdateWithoutShowingBubble(percent, enabled);
+  // Show the window and start the timer. When the timer
+  // runs out, we start the fade sequence.
+  widget->Show();
+  delegate->StartHideTimer();
+}
+
 SettingLevelBubble::SettingLevelBubble(SkBitmap* increase_icon,
                                        SkBitmap* decrease_icon,
-                                       SkBitmap* disabled_icon)
-    : current_percent_(-1.0),
+                                       SkBitmap* disabled_icon,
+                                       const gfx::Rect& monitor_area)
+    : BubbleDelegateView(gfx::Point(),
+                         views::BubbleBorder::FLOAT,
+                         SK_ColorWHITE),
+      current_percent_(-1.0),
       target_percent_(-1.0),
       increase_icon_(increase_icon),
       decrease_icon_(decrease_icon),
       disabled_icon_(disabled_icon),
-      bubble_(NULL),
+      current_icon_(NULL),
       view_(NULL),
-      is_animating_(false) {
+      is_animating_(false),
+      monitor_area_(monitor_area) {

[msw, 2011/10/22 00:44:48]

enabled_ should probably be initialized here.
afaict it's set correctly in CreateBubble via UpdateWithoutShowingBubble before
it's used in Init, but explicitly initializing it is a good idea.

[alicet1, 2011/10/24 15:46:38]

Done.

 }
 
-SettingLevelBubble::~SettingLevelBubble() {}
+SettingLevelBubble::~SettingLevelBubble() {
+}
 
-void SettingLevelBubble::ShowBubble(double percent, bool enabled) {
-  const double old_target_percent = target_percent_;
-  UpdateTargetPercent(percent);
+gfx::Point SettingLevelBubble::GetAnchorPoint() const {
+  return (gfx::Point(
+      monitor_area_.x() + kBubbleXRatio * monitor_area_.width(),
+      monitor_area_.bottom() - view_size_.height() / 2 - kBubbleBottomGap));
+}
 
-  SkBitmap* icon = increase_icon_;
-  if (!enabled || target_percent_ == 0)
-    icon = disabled_icon_;
-  else if (old_target_percent >= 0 && target_percent_ < old_target_percent)
-    icon = decrease_icon_;
+void SettingLevelBubble::Init() {
+  SetLayoutManager(new views::FillLayout());
+  view_ = new SettingLevelBubbleView();
+  view_->Init(current_icon_, current_percent_, enabled_);
+  AddChildView(view_);
+  view_size_ = GetPreferredSize();
+}
 
-  if (!bubble_) {
-    views::Widget* parent_widget = GetToplevelWidget();
-    if (parent_widget == NULL) {
-      LOG(WARNING) << "Unable to locate parent widget to display a bubble";
-      return;
-    }
-    DCHECK(view_ == NULL);
-    view_ = new SettingLevelBubbleView;
-    view_->Init(icon, current_percent_, enabled);
+void SettingLevelBubble::WindowClosing() {
+  hide_timer_.Stop();
+  StopAnimation();
+  view_ = NULL;
+  current_percent_ = target_percent_;
+  target_time_ = TimeTicks();
+  last_animation_update_time_ = TimeTicks();
+  last_target_update_time_ = TimeTicks();
+}
 
-    // Calculate the position in screen coordinates that the bubble should
-    // "point" at (since we use BubbleBorder::FLOAT, this position actually
-    // specifies the center of the bubble).
-    const gfx::Rect monitor_area =
-        gfx::Screen::GetMonitorAreaNearestWindow(
-            parent_widget->GetNativeView());
-    const gfx::Size view_size = view_->GetPreferredSize();
-    const gfx::Rect position_relative_to(
-        monitor_area.x() + kBubbleXRatio * monitor_area.width(),
-        monitor_area.bottom() - view_size.height() / 2 - kBubbleBottomGap,
-        0, 0);
-
-    bubble_ = Bubble::ShowFocusless(parent_widget,
-                                    position_relative_to,
-                                    views::BubbleBorder::FLOAT,
-                                    view_,  // contents
-                                    this,   // delegate
-                                    true);  // show while screen is locked
-    // TODO(derat): We probably shouldn't be using Bubble.  It'd be nice to call
-    // bubble_->set_fade_away_on_close(true) here, but then, if ShowBubble()
-    // gets called while the bubble is fading away, we end up just adjusting the
-    // value on the disappearing bubble; ideally we'd have a way to cancel the
-    // fade and show the bubble at full opacity for another
-    // kBubbleShowTimeoutMs.
-  } else {
-    DCHECK(view_);
-    hide_timer_.Stop();
-    view_->SetIcon(icon);
-    view_->SetEnabled(enabled);
-  }
-
+void SettingLevelBubble::StartHideTimer() {
+  hide_timer_.Stop();
   hide_timer_.Start(FROM_HERE,
                     base::TimeDelta::FromMilliseconds(kBubbleShowTimeoutMs),
                     this, &SettingLevelBubble::OnHideTimeout);
 }
 
-void SettingLevelBubble::HideBubble() {
-  if (bubble_)
-    bubble_->Close();
-}
-
 void SettingLevelBubble::UpdateWithoutShowingBubble(double percent,
                                                     bool enabled) {
+  enabled_ = enabled;
+  const double old_target_percent = target_percent_;
   UpdateTargetPercent(percent);
-  if (view_)
+  current_icon_ = increase_icon_;
+  if (!enabled || target_percent_ == 0)
+    current_icon_ = disabled_icon_;
+  else if (old_target_percent >= 0 && target_percent_ < old_target_percent)
+    current_icon_ = decrease_icon_;
+  if (view_) {
     view_->SetEnabled(enabled);
+    view_->SetIcon(current_icon_);
+  }
 }
 
 void SettingLevelBubble::OnHideTimeout() {
-  HideBubble();
+  // Start fading away.
+  StartFade(false);
 }
 
 void SettingLevelBubble::OnAnimationTimeout() {
   const TimeTicks now = TimeTicks::Now();
   const int64 remaining_ms = (target_time_ - now).InMilliseconds();
 
   if (remaining_ms <= 0) {
     current_percent_ = target_percent_;
     StopAnimation();
   } else {
     // Figure out what fraction of the total time until we want to reach the
     // target has elapsed since the last update.
     const double remaining_percent = target_percent_ - current_percent_;
     const int64 elapsed_ms =
         (now - last_animation_update_time_).InMilliseconds();
     current_percent_ +=
         remaining_percent *
         (static_cast<double>(elapsed_ms) / (elapsed_ms + remaining_ms));
   }
   last_animation_update_time_ = now;
 
   if (view_)
     view_->SetLevel(current_percent_);
 }
 
-void SettingLevelBubble::BubbleClosing(Bubble* bubble, bool) {
-  DCHECK(bubble == bubble_);
-  hide_timer_.Stop();
-  StopAnimation();
-  bubble_ = NULL;
-  view_ = NULL;
-  current_percent_ = target_percent_;
-  target_time_ = TimeTicks();
-  last_animation_update_time_ = TimeTicks();
-  last_target_update_time_ = TimeTicks();
-}
-
-bool SettingLevelBubble::CloseOnEscape() {
-  return true;
-}
-
-bool SettingLevelBubble::FadeInOnShow() {
-  return false;
-}
-
 void SettingLevelBubble::UpdateTargetPercent(double percent) {
   target_percent_ = LimitPercent(percent);
   const TimeTicks now = TimeTicks::Now();
 
   if (current_percent_ < 0.0) {
     // If we're setting the level for the first time, no need to animate.
     current_percent_ = target_percent_;
     if (view_)
       view_->SetLevel(current_percent_);
   } else {
@@ skipping 19 matching lines @@
 
   last_target_update_time_ = now;
 }
 
 void SettingLevelBubble::StopAnimation() {
   animation_timer_.Stop();
   is_animating_ = false;
 }
 
 }  // namespace chromeos