Move infobar constants and the code that uses them from components/ to chrome/.

components/infobars/core/infobar_container.cc

 // Copyright 2014 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 "components/infobars/core/infobar_container.h"
 
 #include <algorithm>
 
+#include "base/auto_reset.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "components/infobars/core/infobar.h"
 #include "components/infobars/core/infobar_delegate.h"
-#include "ui/gfx/animation/slide_animation.h"
 
 namespace infobars {
 
 InfoBarContainer::Delegate::~Delegate() {
 }
 
 InfoBarContainer::InfoBarContainer(Delegate* delegate)
     : delegate_(delegate),
       infobar_manager_(NULL),
-      top_arrow_target_height_(InfoBar::kDefaultArrowTargetHeight) {
+      ignore_infobar_state_changed_(false) {
 }
 
 InfoBarContainer::~InfoBarContainer() {
   // RemoveAllInfoBarsForDestruction() should have already cleared our infobars.
   DCHECK(infobars_.empty());
   if (infobar_manager_)
     infobar_manager_->RemoveObserver(this);
 }
 
 void InfoBarContainer::ChangeInfoBarManager(InfoBarManager* infobar_manager) {
   if (infobar_manager_)
     infobar_manager_->RemoveObserver(this);
 
-  // Hides all infobars in this container without animation.
-  while (!infobars_.empty()) {
-    InfoBar* infobar = infobars_.front();
-    // Inform the infobar that it's hidden.  If it was already closing, this
-    // deletes it.  Otherwise, this ensures the infobar will be deleted if it's
-    // closed while it's not in an InfoBarContainer.
-    infobar->Hide(false);
-  }
+  {
+    // Ignore intermediate state changes.  We'll manually trigger processing
+    // once we're finished.
+    base::AutoReset<bool> ignore_changes(&ignore_infobar_state_changed_, true);
 
-  infobar_manager_ = infobar_manager;
-  if (infobar_manager_) {
-    infobar_manager_->AddObserver(this);
+    // Hides all infobars in this container without animation.
+    while (!infobars_.empty()) {
+      InfoBar* infobar = infobars_.front();
+      // Inform the infobar that it's hidden.  If it was already closing, this
+      // deletes it.  Otherwise, this ensures the infobar will be deleted if
+      // it's closed while it's not in an InfoBarContainer.
+      infobar->Hide(false);
+    }
 
-    for (size_t i = 0; i < infobar_manager_->infobar_count(); ++i) {
-      // As when we removed the infobars above, we prevent callbacks to
-      // OnInfoBarStateChanged() for each infobar.
-      AddInfoBar(infobar_manager_->infobar_at(i), i, false, NO_CALLBACK);
+    infobar_manager_ = infobar_manager;
+    if (infobar_manager_) {
+      infobar_manager_->AddObserver(this);
+
+      for (size_t i = 0; i < infobar_manager_->infobar_count(); ++i)
+        AddInfoBar(infobar_manager_->infobar_at(i), i, false);
     }
   }
 
   // Now that everything is up to date, signal the delegate to re-layout.
   OnInfoBarStateChanged(false);
 }
 
 int InfoBarContainer::GetVerticalOverlap(int* total_height) const {
   // Our |total_height| is the sum of the preferred heights of the InfoBars
   // contained within us plus the |vertical_overlap|.
   int vertical_overlap = 0;
   int next_infobar_y = 0;
 
   for (InfoBars::const_iterator i(infobars_.begin()); i != infobars_.end();
        ++i) {
     InfoBar* infobar = *i;
     next_infobar_y -= infobar->arrow_height();
     vertical_overlap = std::max(vertical_overlap, -next_infobar_y);
     next_infobar_y += infobar->total_height();
   }
 
   if (total_height)
     *total_height = next_infobar_y + vertical_overlap;
   return vertical_overlap;
 }
 
-void InfoBarContainer::SetMaxTopArrowHeight(int height) {
-  // Decrease the height by the arrow stroke thickness, which is the separator
-  // line height, because the infobar arrow target heights are without-stroke.
-  top_arrow_target_height_ = std::min(
-      std::max(height - InfoBar::kSeparatorLineHeight, 0),
-      InfoBar::kMaximumArrowTargetHeight);
-  UpdateInfoBarArrowTargetHeights();
+void InfoBarContainer::UpdateInfoBarArrowTargetHeights() {
+  for (size_t i = 0; i < infobars_.size(); ++i) {
+    infobars_[i]->SetArrowTargetHeight(delegate_ ?
+        delegate_->ArrowTargetHeightForInfoBar(
+            i, const_cast<const InfoBar*>(infobars_[i])->animation()) : 0);
+  }
 }
 
 void InfoBarContainer::OnInfoBarStateChanged(bool is_animating) {
+  if (ignore_infobar_state_changed_)
+    return;
   if (delegate_)
     delegate_->InfoBarContainerStateChanged(is_animating);
   UpdateInfoBarArrowTargetHeights();
   PlatformSpecificInfoBarStateChanged(is_animating);
 }
 
 void InfoBarContainer::RemoveInfoBar(InfoBar* infobar) {
   infobar->set_container(NULL);
   InfoBars::iterator i(std::find(infobars_.begin(), infobars_.end(), infobar));
   DCHECK(i != infobars_.end());
   PlatformSpecificRemoveInfoBar(infobar);
   infobars_.erase(i);
 }
 
 void InfoBarContainer::RemoveAllInfoBarsForDestruction() {
   // Before we remove any children, we reset |delegate_|, so that no removals
   // will result in us trying to call
   // delegate_->InfoBarContainerStateChanged().  This is important because at
   // this point |delegate_| may be shutting down, and it's at best unimportant
   // and at worst disastrous to call that.
   delegate_ = NULL;
   ChangeInfoBarManager(NULL);
 }
 
 void InfoBarContainer::OnInfoBarAdded(InfoBar* infobar) {
-  AddInfoBar(infobar, infobars_.size(), true, WANT_CALLBACK);
+  AddInfoBar(infobar, infobars_.size(), true);
 }
 
 void InfoBarContainer::OnInfoBarRemoved(InfoBar* infobar, bool animate) {
   infobar->Hide(animate);
   UpdateInfoBarArrowTargetHeights();
 }
 
 void InfoBarContainer::OnInfoBarReplaced(InfoBar* old_infobar,
                                          InfoBar* new_infobar) {
   PlatformSpecificReplaceInfoBar(old_infobar, new_infobar);
   InfoBars::const_iterator i(std::find(infobars_.begin(), infobars_.end(),
                                        old_infobar));
   DCHECK(i != infobars_.end());
   size_t position = i - infobars_.begin();
   old_infobar->Hide(false);
-  AddInfoBar(new_infobar, position, false, WANT_CALLBACK);
+  AddInfoBar(new_infobar, position, false);
 }
 
 void InfoBarContainer::OnManagerShuttingDown(InfoBarManager* manager) {
   DCHECK_EQ(infobar_manager_, manager);
   infobar_manager_->RemoveObserver(this);
   infobar_manager_ = NULL;
 }
 
 void InfoBarContainer::AddInfoBar(InfoBar* infobar,
                                   size_t position,
-                                  bool animate,
-                                  CallbackStatus callback_status) {
+                                  bool animate) {
   DCHECK(std::find(infobars_.begin(), infobars_.end(), infobar) ==
       infobars_.end());
   DCHECK_LE(position, infobars_.size());
   infobars_.insert(infobars_.begin() + position, infobar);
   UpdateInfoBarArrowTargetHeights();
   PlatformSpecificAddInfoBar(infobar, position);
-  if (callback_status == WANT_CALLBACK)
-    infobar->set_container(this);
+  infobar->set_container(this);
   infobar->Show(animate);
-  if (callback_status == NO_CALLBACK)
-    infobar->set_container(this);
-}
-
-void InfoBarContainer::UpdateInfoBarArrowTargetHeights() {
-  for (size_t i = 0; i < infobars_.size(); ++i)
-    infobars_[i]->SetArrowTargetHeight(ArrowTargetHeightForInfoBar(i));
-}
-
-int InfoBarContainer::ArrowTargetHeightForInfoBar(size_t infobar_index) const {
-  if (!delegate_ || !delegate_->DrawInfoBarArrows(NULL))
-    return 0;
-  if (infobar_index == 0)
-    return top_arrow_target_height_;
-  const gfx::SlideAnimation& first_infobar_animation =
-      const_cast<const InfoBar*>(infobars_.front())->animation();
-  if ((infobar_index > 1) || first_infobar_animation.IsShowing())
-    return InfoBar::kDefaultArrowTargetHeight;
-  // When the first infobar is animating closed, we animate the second infobar's
-  // arrow target height from the default to the top target height.  Note that
-  // the animation values here are going from 1.0 -> 0.0 as the top bar closes.
-  return top_arrow_target_height_ + static_cast<int>(
-      (InfoBar::kDefaultArrowTargetHeight - top_arrow_target_height_) *
-          first_infobar_animation.GetCurrentValue());
 }
 
 }  // namespace infobars