Move Infobars core files to the Infobars component

chrome/browser/infobars/infobar_container.cc

-// Copyright (c) 2012 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 "build/build_config.h"
-
-#include "chrome/browser/infobars/infobar_container.h"
-
-#include <algorithm>
-
-#include "base/logging.h"
-#include "chrome/browser/infobars/infobar.h"
-#include "chrome/browser/infobars/infobar_delegate.h"
-#include "ui/gfx/animation/slide_animation.h"
-
-InfoBarContainer::Delegate::~Delegate() {
-}
-
-InfoBarContainer::InfoBarContainer(Delegate* delegate)
-    : delegate_(delegate),
-      infobar_manager_(NULL),
-      top_arrow_target_height_(InfoBar::kDefaultArrowTargetHeight) {
-}
-
-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);
-  }
-
-  infobar_manager_ = infobar_manager;
-  if (infobar_manager_) {
-    infobar_manager_->AddObserver(this);
-
-    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);
-    }
-  }
-
-  // Now that everything is up to date, signal the delegate to re-layout.
-  OnInfoBarStateChanged(false);
-}
-
-int InfoBarContainer::GetVerticalOverlap(int* total_height) {
-  // 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::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::OnInfoBarStateChanged(bool is_animating) {
-  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);
-}
-
-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);
-}
-
-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) {
-  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->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());
-}