Allow a Views client to provide a default frameview for window widgets.

ash/wm/dialog_frame_view.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 "ash/wm/dialog_frame_view.h"
+
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/font.h"
+#include "ui/views/background.h"
+#include "ui/views/border.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace ash {
+namespace internal {
+
+// static
+const char DialogFrameView::kViewClassName[] = "ash/wm/DialogFrameView";
+
+// static
+gfx::Font* DialogFrameView::title_font_ = NULL;
+
+// TODO(benrg): tweak these values until they match kennedy-spec.
+// TODO(benrg): this may also mean tweaking the frame shadow opacity.
+const SkColor kDialogBackgroundColor = SK_ColorWHITE;
+const SkColor kDialogBorderColor = SkColorSetRGB(0xCC, 0xCC, 0xCC);
+const SkColor kDialogTitleColor = SK_ColorBLACK;
+
+// TODO(benrg): Replace with width-based padding heuristic.
+static int kDialogPadding = 30;
+static int kDialogContentVSpacing = 18;
+
+const int kCloseButtonSize = 16;
+
+////////////////////////////////////////////////////////////////////////////////
+// DialogFrameView, public:
+
+DialogFrameView::DialogFrameView() {
+  set_background(views::Background::CreateSolidBackground(
+      kDialogBackgroundColor));
+  set_border(views::Border::CreateSolidBorder(1, kDialogBorderColor));
+  if (!title_font_)
+    title_font_ = new gfx::Font(gfx::Font().DeriveFont(4, gfx::Font::NORMAL));
+}
+
+DialogFrameView::~DialogFrameView() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DialogFrameView, views::NonClientFrameView:
+
+gfx::Rect DialogFrameView::GetBoundsForClientView() const {
+  gfx::Rect client_bounds = GetLocalBounds();
+  client_bounds.Inset(kDialogPadding, GetNonClientTopHeight(),
+                      kDialogPadding, kDialogPadding);
+  return client_bounds;
+}
+
+gfx::Rect DialogFrameView::GetWindowBoundsForClientBounds(
+    const gfx::Rect& client_bounds) const {
+  gfx::Rect window_bounds = client_bounds;
+  window_bounds.Inset(-kDialogPadding, -GetNonClientTopHeight(),
+                      -kDialogPadding, -kDialogPadding);
+  return window_bounds;
+}
+
+int DialogFrameView::NonClientHitTest(const gfx::Point& point) {
+  if (close_button_rect_.Contains(point))
+    return HTCLOSE;
+  return point.y() < GetNonClientTopHeight() ? HTCAPTION : HTCLIENT;
+}
+
+void DialogFrameView::GetWindowMask(const gfx::Size& size,
+                                    gfx::Path* window_mask) {
+  // Nothing to do.
+}
+
+void DialogFrameView::ResetWindowControls() {
+  // Nothing to do.
+}
+
+void DialogFrameView::UpdateWindowIcon() {
+  // Nothing to do.
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DialogFrameView, views::View overrides:
+
+std::string DialogFrameView::GetClassName() const {
+  return kViewClassName;
+}
+
+void DialogFrameView::Layout() {
+  title_display_rect_ = GetLocalBounds();
+  // TODO(benrg): size based on font height rather than bottom padding.
+  close_button_rect_.SetRect(width() - kDialogPadding - kCloseButtonSize,
+                             kDialogPadding, kCloseButtonSize,
+                             kCloseButtonSize);
+  title_display_rect_.Inset(kDialogPadding, kDialogPadding,
+                            kDialogPadding + kCloseButtonSize, kDialogPadding);
+  title_display_rect_.set_height(title_font_->GetHeight());
+}
+
+void DialogFrameView::OnPaint(gfx::Canvas* canvas) {
+  views::View::OnPaint(canvas);
+  canvas->FillRect(SK_ColorRED, close_button_rect_);
+  views::WidgetDelegate* delegate = GetWidget()->widget_delegate();
+  if (!delegate)
+    return;
+  canvas->DrawStringInt(delegate->GetWindowTitle(), *title_font_,
+                        kDialogTitleColor, title_display_rect_);
+}
+
+// TODO(benrg): You may want to use a views::Button for the close box instead.
+bool DialogFrameView::OnMousePressed(const views::MouseEvent& event) {
+  if (close_button_rect_.Contains(event.location()))
+    return true;
+  return View::OnMousePressed(event);
+}
+void DialogFrameView::OnMouseReleased(const views::MouseEvent& event) {
+  if (close_button_rect_.Contains(event.location()))
+    GetWidget()->Close();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DialogFrameView, private:
+
+int DialogFrameView::GetNonClientTopHeight() const {
+  return kDialogPadding + title_font_->GetHeight() + kDialogContentVSpacing;
+}
+
+}  // namespace internal
+}  // namespace views