Make the new Gaia password separated signin flow modal.

chrome/browser/ui/views/profiles/signin_view_controller.cc

+// Copyright 2015 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/profiles/signin_view_controller.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_avatar_icon_util.h"
+#include "chrome/browser/signin/signin_error_controller_factory.h"
+#include "chrome/browser/signin/signin_promo.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "components/constrained_window/constrained_window_views.h"
+#include "components/signin/core/browser/signin_error_controller.h"
+#include "components/signin/core/common/profile_management_switches.h"
+#include "content/public/browser/render_widget_host_view.h"
+#include "content/public/browser/web_contents.h"
+#include "ui/views/controls/webview/webview.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+#include "ui/views/window/dialog_delegate.h"
+
+const int kPasswordCombinedFixedGaiaViewHeight = 440;
+const int kPasswordCombinedFixedGaiaViewWidth = 360;
+const int kFixedGaiaViewHeight = 512;
+const int kFixedGaiaViewWidth = 448;
+
+namespace {
+
+class ModalSigninDelegate : public views::WidgetDelegate,
+                            public content::WebContentsDelegate {
+ public:
+  explicit ModalSigninDelegate(views::WebView* content_view)
+      : content_view_(content_view) {
+    content_view_->GetWebContents()->SetDelegate(this);
+  }
+
+  views::View* GetContentsView() override {
+    return content_view_;
+  }
+
+  views::Widget* GetWidget() override {
+    return content_view_->GetWidget();
+  }
+
+  const views::Widget* GetWidget() const override {
+    return content_view_->GetWidget();
+  }
+
+  void DeleteDelegate() override {
+    delete this;
+  }
+
+  ui::ModalType GetModalType() const override {
+    return ui::MODAL_TYPE_CHILD;
+  }
+
+  bool ShouldShowWindowTitle() const override {
+    return false;
+  }
+
+  bool ShouldShowCloseButton() const override {
+    return false;
+  }
+
+  views::NonClientFrameView* CreateNonClientFrameView(
+      views::Widget* widget) override {
+    return views::DialogDelegate::CreateDialogFrameView(widget);

[sky, 2015/11/25 00:30:07]

Is there a reason you're not subclassing DialogDelegateView?

[anthonyvd, 2015/11/25 18:49:31]

Doing it that way automatically adds the OK/Cancel buttons to the constrained
window. Am I doing something wrong?

[sky, 2015/11/25 20:57:16]

You can override GetDialogButtons if you don't want them.

[anthonyvd, 2015/11/25 23:05:22]

Neat, thanks for the info!

Done.

+  }
+
+ private:
+  views::WebView* content_view_;
+};

[sky, 2015/11/25 00:30:07]

DISALLOW...

[anthonyvd, 2015/11/25 18:49:31]

Done.

+
+}  // namespace
+
+// static
+views::WebView* SigninViewController::CreateGaiaWebView(
+    WebContentsDelegate* delegate,
+    profiles::BubbleViewMode mode,
+    Profile* profile) {
+  GURL url;

[sky, 2015/11/25 00:30:07]

The code for determining the url doesn't seem platform specific. Can it be some
where general?

[anthonyvd, 2015/11/25 18:49:31]

Done.

+  switch (mode) {
+    case profiles::BUBBLE_VIEW_MODE_GAIA_SIGNIN:
+      url = signin::GetPromoURL(signin_metrics::SOURCE_AVATAR_BUBBLE_SIGN_IN,
+                                false /* auto_close */,
+                                true /* is_constrained */);
+      break;
+    case profiles::BUBBLE_VIEW_MODE_GAIA_ADD_ACCOUNT:
+      url = signin::GetPromoURL(
+          signin_metrics::SOURCE_AVATAR_BUBBLE_ADD_ACCOUNT,
+          false /* auto_close */,
+          true /* is_constrained */);
+      break;
+    case profiles::BUBBLE_VIEW_MODE_GAIA_REAUTH: {
+      const SigninErrorController* error_controller =
+          SigninErrorControllerFactory::GetForProfile(profile);
+      CHECK(error_controller);
+      DCHECK(error_controller->HasError());
+      url = signin::GetReauthURL(profile, error_controller->error_account_id());
+      break;
+    }
+    default:
+      NOTREACHED() << "Called with invalid mode=" << mode;
+      return NULL;
+  }
+
+  // Adds Gaia signin webview.
+  const gfx::Size pref_size = switches::UsePasswordSeparatedSigninFlow()
+      ? gfx::Size(kFixedGaiaViewWidth, kFixedGaiaViewHeight)
+      : gfx::Size(kPasswordCombinedFixedGaiaViewWidth,
+                  kPasswordCombinedFixedGaiaViewHeight);
+  views::WebView* web_view = new views::WebView(profile);
+  web_view->LoadInitialURL(url);
+  web_view->GetWebContents()->SetDelegate(delegate);
+  web_view->SetPreferredSize(pref_size);
+  content::RenderWidgetHostView* rwhv =
+      web_view->GetWebContents()->GetRenderWidgetHostView();
+  if (rwhv)
+    rwhv->SetBackgroundColor(profiles::kAvatarBubbleGaiaBackgroundColor);
+
+  return web_view;
+}
+
+void SigninViewController::ShowModalSignin(
+    profiles::BubbleViewMode mode,
+    Browser* browser) {
+  CloseModalSignin();
+  ModalSigninDelegate* delegate = new ModalSigninDelegate(
+      CreateGaiaWebView(this, mode, browser->profile()));
+  modal_signin_widget_ = constrained_window::ShowWebModalDialogViews(
+      delegate, browser->tab_strip_model()->GetActiveWebContents());
+}
+
+void SigninViewController::CloseModalSignin() {
+  if (modal_signin_widget_) {
+    modal_signin_widget_->Close();
+    modal_signin_widget_ = nullptr;

[sky, 2015/11/25 00:30:07]

What if the modal_signin_widget_ is deleted out from under you?

[anthonyvd, 2015/11/25 18:49:31]

Good point. This latest patchset fixes this by setting it to nullptr when the
delegate is deleted. The pointer to implementation shenanigans were meant to
keep the Reset() function out of SigninViewController's public interface. Let me
know what you think.

+  }
+}
+
+// static
+bool SigninViewController::ShouldShowModalSigninForMode(
+    profiles::BubbleViewMode mode) {
+  return switches::UsePasswordSeparatedSigninFlow() &&
+        (mode == profiles::BUBBLE_VIEW_MODE_GAIA_SIGNIN ||
+         mode == profiles::BUBBLE_VIEW_MODE_GAIA_ADD_ACCOUNT ||
+         mode == profiles::BUBBLE_VIEW_MODE_GAIA_REAUTH);
+}