views: Move bubble, events, focus and layout to ui/views/.

views/focus/focus_search.cc

Index: views/focus/focus_search.cc
diff --git a/views/focus/focus_search.cc b/views/focus/focus_search.cc
deleted file mode 100644
index cbb95c54ca01063b074748bc059af14b27527393..0000000000000000000000000000000000000000
--- a/views/focus/focus_search.cc
+++ /dev/null
@@ -1,272 +0,0 @@
-// Copyright (c) 2010 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 "base/logging.h"
-#include "views/focus/focus_manager.h"
-#include "views/focus/focus_search.h"
-#include "views/view.h"
-
-namespace views {
-
-FocusSearch::FocusSearch(View* root, bool cycle, bool accessibility_mode)
-    : root_(root),
-      cycle_(cycle),
-      accessibility_mode_(accessibility_mode) {
-}
-
-View* FocusSearch::FindNextFocusableView(View* starting_view,
-                                         bool reverse,
-                                         Direction direction,
-                                         bool check_starting_view,
-                                         FocusTraversable** focus_traversable,
-                                         View** focus_traversable_view) {
-  *focus_traversable = NULL;
-  *focus_traversable_view = NULL;
-
-  if (!root_->has_children()) {
-    NOTREACHED();
-    // Nothing to focus on here.
-    return NULL;
-  }
-
-  View* initial_starting_view = starting_view;
-  int starting_view_group = -1;
-  if (starting_view)
-    starting_view_group = starting_view->GetGroup();
-
-  if (!starting_view) {
-    // Default to the first/last child
-    starting_view = reverse ? root_->child_at(root_->child_count() - 1) :
-        root_->child_at(0);
-    // If there was no starting view, then the one we select is a potential
-    // focus candidate.
-    check_starting_view = true;
-  } else {
-    // The starting view should be a direct or indirect child of the root.
-    DCHECK(root_->Contains(starting_view));
-  }
-
-  View* v = NULL;
-  if (!reverse) {
-    v = FindNextFocusableViewImpl(starting_view, check_starting_view,
-                                  true,
-                                  (direction == DOWN) ? true : false,
-                                  starting_view_group,
-                                  focus_traversable,
-                                  focus_traversable_view);
-  } else {
-    // If the starting view is focusable, we don't want to go down, as we are
-    // traversing the view hierarchy tree bottom-up.
-    bool can_go_down = (direction == DOWN) && !IsFocusable(starting_view);
-    v = FindPreviousFocusableViewImpl(starting_view, check_starting_view,
-                                      true,
-                                      can_go_down,
-                                      starting_view_group,
-                                      focus_traversable,
-                                      focus_traversable_view);
-  }
-
-  // Don't set the focus to something outside of this view hierarchy.
-  if (v && v != root_ && !root_->Contains(v))
-    v = NULL;
-
-  // If |cycle_| is true, prefer to keep cycling rather than returning NULL.
-  if (cycle_ && !v && initial_starting_view) {
-    v = FindNextFocusableView(NULL, reverse, direction, check_starting_view,
-                              focus_traversable, focus_traversable_view);
-    DCHECK(IsFocusable(v));
-    return v;
-  }
-
-  // Doing some sanity checks.
-  if (v) {
-    DCHECK(IsFocusable(v));
-    return v;
-  }
-  if (*focus_traversable) {
-    DCHECK(*focus_traversable_view);
-    return NULL;
-  }
-  // Nothing found.
-  return NULL;
-}
-
-bool FocusSearch::IsViewFocusableCandidate(View* v, int skip_group_id) {
-  return IsFocusable(v) &&
-      (v->IsGroupFocusTraversable() || skip_group_id == -1 ||
-       v->GetGroup() != skip_group_id);
-}
-
-bool FocusSearch::IsFocusable(View* v) {
-  if (accessibility_mode_)
-    return v && v->IsAccessibilityFocusableInRootView();
-
-  return v && v->IsFocusableInRootView();
-}
-
-View* FocusSearch::FindSelectedViewForGroup(View* view) {
-  if (view->IsGroupFocusTraversable() ||
-      view->GetGroup() == -1)  // No group for that view.
-    return view;
-
-  View* selected_view = view->GetSelectedViewForGroup(view->GetGroup());
-  if (selected_view)
-    return selected_view;
-
-  // No view selected for that group, default to the specified view.
-  return view;
-}
-
-View* FocusSearch::GetParent(View* v) {
-  return root_->Contains(v) ? v->parent() : NULL;
-}
-
-// Strategy for finding the next focusable view:
-// - keep going down the first child, stop when you find a focusable view or
-//   a focus traversable view (in that case return it) or when you reach a view
-//   with no children.
-// - go to the right sibling and start the search from there (by invoking
-//   FindNextFocusableViewImpl on that view).
-// - if the view has no right sibling, go up the parents until you find a parent
-//   with a right sibling and start the search from there.
-View* FocusSearch::FindNextFocusableViewImpl(
-    View* starting_view,
-    bool check_starting_view,
-    bool can_go_up,
-    bool can_go_down,
-    int skip_group_id,
-    FocusTraversable** focus_traversable,
-    View** focus_traversable_view) {
-  if (check_starting_view) {
-    if (IsViewFocusableCandidate(starting_view, skip_group_id)) {
-      View* v = FindSelectedViewForGroup(starting_view);
-      // The selected view might not be focusable (if it is disabled for
-      // example).
-      if (IsFocusable(v))
-        return v;
-    }
-
-    *focus_traversable = starting_view->GetFocusTraversable();
-    if (*focus_traversable) {
-      *focus_traversable_view = starting_view;
-      return NULL;
-    }
-  }
-
-  // First let's try the left child.
-  if (can_go_down) {
-    if (starting_view->has_children()) {
-      View* v = FindNextFocusableViewImpl(starting_view->child_at(0),
-                                          true, false, true, skip_group_id,
-                                          focus_traversable,
-                                          focus_traversable_view);
-      if (v || *focus_traversable)
-        return v;
-    }
-  }
-
-  // Then try the right sibling.
-  View* sibling = starting_view->GetNextFocusableView();
-  if (sibling) {
-    View* v = FindNextFocusableViewImpl(sibling,
-                                        true, false, true, skip_group_id,
-                                        focus_traversable,
-                                        focus_traversable_view);
-    if (v || *focus_traversable)
-      return v;
-  }
-
-  // Then go up to the parent sibling.
-  if (can_go_up) {
-    View* parent = GetParent(starting_view);
-    while (parent) {
-      sibling = parent->GetNextFocusableView();
-      if (sibling) {
-        return FindNextFocusableViewImpl(sibling,
-                                         true, true, true,
-                                         skip_group_id,
-                                         focus_traversable,
-                                         focus_traversable_view);
-      }
-      parent = GetParent(parent);
-    }
-  }
-
-  // We found nothing.
-  return NULL;
-}
-
-// Strategy for finding the previous focusable view:
-// - keep going down on the right until you reach a view with no children, if it
-//   it is a good candidate return it.
-// - start the search on the left sibling.
-// - if there are no left sibling, start the search on the parent (without going
-//   down).
-View* FocusSearch::FindPreviousFocusableViewImpl(
-    View* starting_view,
-    bool check_starting_view,
-    bool can_go_up,
-    bool can_go_down,
-    int skip_group_id,
-    FocusTraversable** focus_traversable,
-    View** focus_traversable_view) {
-  // Let's go down and right as much as we can.
-  if (can_go_down) {
-    // Before we go into the direct children, we have to check if this view has
-    // a FocusTraversable.
-    *focus_traversable = starting_view->GetFocusTraversable();
-    if (*focus_traversable) {
-      *focus_traversable_view = starting_view;
-      return NULL;
-    }
-
-    if (starting_view->has_children()) {
-      View* view =
-          starting_view->child_at(starting_view->child_count() - 1);
-      View* v = FindPreviousFocusableViewImpl(view, true, false, true,
-                                              skip_group_id,
-                                              focus_traversable,
-                                              focus_traversable_view);
-      if (v || *focus_traversable)
-        return v;
-    }
-  }
-
-  // Then look at this view. Here, we do not need to see if the view has
-  // a FocusTraversable, since we do not want to go down any more.
-  if (check_starting_view &&
-      IsViewFocusableCandidate(starting_view, skip_group_id)) {
-    View* v = FindSelectedViewForGroup(starting_view);
-    // The selected view might not be focusable (if it is disabled for
-    // example).
-    if (IsFocusable(v))
-      return v;
-  }
-
-  // Then try the left sibling.
-  View* sibling = starting_view->GetPreviousFocusableView();
-  if (sibling) {
-    return FindPreviousFocusableViewImpl(sibling,
-                                         true, true, true,
-                                         skip_group_id,
-                                         focus_traversable,
-                                         focus_traversable_view);
-  }
-
-  // Then go up the parent.
-  if (can_go_up) {
-    View* parent = GetParent(starting_view);
-    if (parent)
-      return FindPreviousFocusableViewImpl(parent,
-                                           true, true, false,
-                                           skip_group_id,
-                                           focus_traversable,
-                                           focus_traversable_view);
-  }
-
-  // We found nothing.
-  return NULL;
-}
-
-}  // namespace views