Componentize Constrained Window Views

chrome/browser/ui/views/constrained_window_views_unittest.cc

-// Copyright 2013 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 "chrome/browser/ui/views/constrained_window_views.h"
-
-#include "components/web_modal/test_web_contents_modal_dialog_host.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/point.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/size.h"
-#include "ui/views/border.h"
-#include "ui/views/test/views_test_base.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/window/dialog_delegate.h"
-
-namespace views {
-
-class DialogContents : public DialogDelegateView {
- public:
-  DialogContents() {}
-  virtual ~DialogContents() {}
-
-  void set_preferred_size(const gfx::Size& preferred_size) {
-    preferred_size_ = preferred_size;
-  }
-
-  // Overriden from DialogDelegateView:
-  virtual View* GetContentsView() override { return this; }
-  virtual gfx::Size GetPreferredSize() const override {
-    return preferred_size_;
-  }
-  virtual gfx::Size GetMinimumSize() const override { return gfx::Size(); }
-
- private:
-  gfx::Size preferred_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(DialogContents);
-};
-
-class ConstrainedWindowViewsTest : public ViewsTestBase {
- public:
-  ConstrainedWindowViewsTest() : contents_(NULL) {}
-  virtual ~ConstrainedWindowViewsTest() {}
-
-  virtual void SetUp() override {
-    ViewsTestBase::SetUp();
-    contents_ = new DialogContents;
-    Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_WINDOW);
-    params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-    params.delegate = contents_;
-    dialog_.reset(new Widget);
-    dialog_->Init(params);
-    dialog_host_.reset(new web_modal::TestWebContentsModalDialogHost(
-        dialog_->GetNativeView()));
-    dialog_host_->set_max_dialog_size(gfx::Size(5000, 5000));
-
-    // Make sure the dialog size is dominated by the preferred size of the
-    // contents.
-    gfx::Size preferred_size = dialog()->GetRootView()->GetPreferredSize();
-    preferred_size.Enlarge(500, 500);
-    contents()->set_preferred_size(preferred_size);
-  }
-
-  virtual void TearDown() override {
-    ViewsTestBase::TearDown();
-    contents_ = NULL;
-    dialog_host_.reset();
-    dialog_.reset();
-  }
-
-  gfx::Size GetDialogSize() {
-    return dialog()->GetRootView()->GetBoundsInScreen().size();
-  }
-
-  DialogContents* contents() { return contents_; }
-  web_modal::TestWebContentsModalDialogHost* dialog_host() {
-    return dialog_host_.get();
-  }
-  Widget* dialog() { return dialog_.get(); }
-
- private:
-  DialogContents* contents_;
-  scoped_ptr<web_modal::TestWebContentsModalDialogHost> dialog_host_;
-  scoped_ptr<Widget> dialog_;
-
-  DISALLOW_COPY_AND_ASSIGN(ConstrainedWindowViewsTest);
-};
-
-// Make sure a dialog that increases its preferred size grows on the next
-// position update.
-TEST_F(ConstrainedWindowViewsTest, GrowModalDialogSize) {
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  gfx::Size expected_size = GetDialogSize();
-  gfx::Size preferred_size = contents()->GetPreferredSize();
-  expected_size.Enlarge(50, 50);
-  preferred_size.Enlarge(50, 50);
-  contents()->set_preferred_size(preferred_size);
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  EXPECT_EQ(expected_size.ToString(), GetDialogSize().ToString());
-}
-
-// Make sure a dialog that reduces its preferred size shrinks on the next
-// position update.
-TEST_F(ConstrainedWindowViewsTest, ShrinkModalDialogSize) {
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  gfx::Size expected_size = GetDialogSize();
-  gfx::Size preferred_size = contents()->GetPreferredSize();
-  expected_size.Enlarge(-50, -50);
-  preferred_size.Enlarge(-50, -50);
-  contents()->set_preferred_size(preferred_size);
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  EXPECT_EQ(expected_size.ToString(), GetDialogSize().ToString());
-}
-
-// Make sure browser modal dialogs are not affected by restrictions on web
-// content modal dialog maximum sizes.
-TEST_F(ConstrainedWindowViewsTest, MaximumBrowserDialogSize) {
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  gfx::Size dialog_size = GetDialogSize();
-  gfx::Size max_dialog_size = dialog_size;
-  max_dialog_size.Enlarge(-50, -50);
-  dialog_host()->set_max_dialog_size(max_dialog_size);
-  UpdateBrowserModalDialogPosition(dialog(), dialog_host());
-  EXPECT_EQ(dialog_size.ToString(), GetDialogSize().ToString());
-}
-
-// Web content modal dialogs should not get a size larger than what the dialog
-// host gives as the maximum size.
-TEST_F(ConstrainedWindowViewsTest, MaximumWebContentsDialogSize) {
-  UpdateWebContentsModalDialogPosition(dialog(), dialog_host());
-  gfx::Size full_dialog_size = GetDialogSize();
-  gfx::Size max_dialog_size = full_dialog_size;
-  max_dialog_size.Enlarge(-50, -50);
-  dialog_host()->set_max_dialog_size(max_dialog_size);
-  UpdateWebContentsModalDialogPosition(dialog(), dialog_host());
-  // The top border of the dialog is intentionally drawn outside the area
-  // specified by the dialog host, so add it to the size the dialog is expected
-  // to occupy.
-  gfx::Size expected_size = max_dialog_size;
-  Border* border = dialog()->non_client_view()->frame_view()->border();
-  if (border)
-    expected_size.Enlarge(0, border->GetInsets().top());
-  EXPECT_EQ(expected_size.ToString(), GetDialogSize().ToString());
-
-  // Increasing the maximum dialog size should bring the dialog back to its
-  // original size.
-  max_dialog_size.Enlarge(100, 100);
-  dialog_host()->set_max_dialog_size(max_dialog_size);
-  UpdateWebContentsModalDialogPosition(dialog(), dialog_host());
-  EXPECT_EQ(full_dialog_size.ToString(), GetDialogSize().ToString());
-}
-
-}  // namespace views