Refactors HWNDView, NativeViewHostGtk and NativeViewHost so that they match t...

views/controls/native_view_host.cc

-// Copyright (c) 2009 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 "views/controls/native_view_host.h"
-
-#include "views/widget/widget.h"
-#include "base/logging.h"
-
-namespace views {
-
-NativeViewHost::NativeViewHost()
-    : native_view_(NULL),
-      installed_clip_(false),
-      fast_resize_(false),
-      focus_view_(NULL) {
-  // The native widget is placed relative to the root. As such, we need to
-  // know when the position of any ancestor changes, or our visibility relative
-  // to other views changed as it'll effect our position relative to the root.
-  SetNotifyWhenVisibleBoundsInRootChanges(true);
-}
-
-NativeViewHost::~NativeViewHost() {
-}
-
-gfx::Size NativeViewHost::GetPreferredSize() {
-  return preferred_size_;
-}
-
-void NativeViewHost::SetPreferredSize(const gfx::Size& size) {
-  preferred_size_ = size;
-  PreferredSizeChanged();
-}
-
-void NativeViewHost::Layout() {
-  if (!native_view_)
-    return;
-
-  // Since widgets know nothing about the View hierarchy (they are direct
-  // children of the Widget that hosts our View hierarchy) they need to be
-  // positioned in the coordinate system of the Widget, not the current
-  // view.
-  gfx::Point top_left;
-  ConvertPointToWidget(this, &top_left);
-
-  gfx::Rect vis_bounds = GetVisibleBounds();
-  bool visible = !vis_bounds.IsEmpty();
-
-  if (visible && !fast_resize_) {
-    if (vis_bounds.size() != size()) {
-      // Only a portion of the Widget is really visible.
-      int x = vis_bounds.x();
-      int y = vis_bounds.y();
-      InstallClip(x, y, vis_bounds.width(), vis_bounds.height());
-      installed_clip_ = true;
-    } else if (installed_clip_) {
-      // The whole widget is visible but we installed a clip on the widget,
-      // uninstall it.
-      UninstallClip();
-      installed_clip_ = false;
-    }
-  }
-
-  if (visible) {
-    ShowWidget(top_left.x(), top_left.y(), width(), height());
-  } else {
-    HideWidget();
-  }
-}
-
-void NativeViewHost::VisibilityChanged(View* starting_from, bool is_visible) {
-  Layout();
-}
-
-void NativeViewHost::VisibleBoundsInRootChanged() {
-  Layout();
-}
-
-}  // namespace views