Basic skeleton of a window/layer/view inspector.

ui/oak/oak_window.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 "ui/oak/oak_window.h"
+
+#include "base/utf_string_conversions.h"
+#include "grit/ui_resources.h"
+#include "ui/aura/root_window.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/image/image.h"
+#include "ui/views/controls/tree/tree_view.h"
+#include "ui/views/layout/layout_constants.h"
+#include "ui/views/widget/widget.h"
+
+namespace oak {
+namespace internal {
+namespace {
+
+const SkColor kBorderColor = SkColorSetRGB(0xCC, 0xCC, 0xCC);
+
+class DetailsView : public views::View {
+ public:
+  DetailsView() {}
+  virtual ~DetailsView() {}
+
+  // Overridden from views::View:
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
+    canvas->GetSkCanvas()->drawColor(SK_ColorYELLOW);

[tfarina, 2012/03/10 14:42:46]

nit: canvas->sk_canvas()->drawColor(..);

+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DetailsView);
+};
+
+}  // namespace
+
+// static
+views::Widget* OakWindow::instance_ = NULL;
+
+////////////////////////////////////////////////////////////////////////////////
+// OakWindow, public:
+
+OakWindow::OakWindow() : tree_(NULL), tree_container_(NULL), details_(NULL) {
+}
+
+OakWindow::~OakWindow() {
+  // The tree needs to be destroyed before the model.
+  tree_.reset();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// OakWindow, views::WidgetDelegateView implementation:
+
+bool OakWindow::CanResize() const {
+  return true;
+}
+
+bool OakWindow::CanMaximize() const {
+  return true;
+}
+
+string16 OakWindow::GetWindowTitle() const {
+  return ASCIIToUTF16("Oak");
+}
+
+views::View* OakWindow::GetContentsView() {
+  return this;
+}
+
+SkBitmap OakWindow::GetWindowIcon() {
+  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+  return *rb.GetImageNamed(IDR_OAK).ToSkBitmap();
+}
+
+bool OakWindow::ShouldShowWindowIcon() const {
+  return true;
+}
+
+void OakWindow::DeleteDelegate() {
+  instance_ = NULL;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// OakWindow, views::View overrides:
+
+void OakWindow::OnPaint(gfx::Canvas* canvas) {
+  canvas->GetSkCanvas()->drawColor(SK_ColorWHITE);

[tfarina, 2012/03/10 14:42:46]

nit: canvas->sk_canvas()->drawColor(...);

+  canvas->FillRect(separator_rect_, kBorderColor);
+}
+
+void OakWindow::ViewHierarchyChanged(bool is_add,
+                                     views::View* parent,
+                                     views::View* child) {
+  if (is_add && child == this)
+    Init();
+}
+
+void OakWindow::Layout() {
+  gfx::Rect content_bounds = GetLocalBounds();
+  content_bounds.Inset(views::kPanelHorizMargin, views::kPanelVertMargin);
+
+  int tree_height =
+      (content_bounds.height() / 2) - views::kUnrelatedControlVerticalSpacing;
+  gfx::Rect tree_bounds = content_bounds;
+  tree_bounds.set_height(tree_height);
+  tree_container_->SetBoundsRect(tree_bounds);
+
+  separator_rect_ = content_bounds;
+  separator_rect_.set_y(
+      tree_bounds.bottom() + views::kRelatedControlVerticalSpacing);
+  separator_rect_.set_height(1);
+
+  gfx::Rect details_bounds = content_bounds;
+  details_bounds.set_y(
+      separator_rect_.bottom() + views::kRelatedControlVerticalSpacing);
+  details_bounds.set_height(content_bounds.bottom() - details_bounds.y());
+  details_->SetBoundsRect(details_bounds);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// OakWindow, views::TreeViewController implementation:
+
+void OakWindow::OnTreeViewSelectionChanged(views::TreeView* tree) {
+  NOTIMPLEMENTED();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// OakWindow, private:
+
+void OakWindow::Init() {
+  tree_model_.reset(
+      GenerateModel(GetWidget()->GetNativeView()->GetRootWindow()));
+  tree_.reset(new views::TreeView);
+  tree_->set_parent_owned(false);
+  tree_->SetController(this);
+  tree_->SetModel(tree_model_.get());
+  tree_container_ = tree_->CreateParentIfNecessary();
+  AddChildView(tree_container_);
+  details_ = new DetailsView;
+  AddChildView(details_);
+}
+
+}  // namespace internal
+
+void ShowOakWindow() {
+  if (!internal::OakWindow::instance_) {
+    internal::OakWindow::instance_ =
+        views::Widget::CreateWindowWithBounds(new internal::OakWindow,
+                                              gfx::Rect(10, 10, 500, 500));
+  }
+  internal::OakWindow::instance_->Show();
+}
+
+}  // namespace oak