[Smart Lock] Add a private API to show an error bubble anchored to the Smart Lock app window.

chrome/browser/ui/views/proximity_auth/proximity_auth_error_bubble_view.cc

Index: chrome/browser/ui/views/proximity_auth/proximity_auth_error_bubble_view.cc
diff --git a/chrome/browser/ui/views/proximity_auth/proximity_auth_error_bubble_view.cc b/chrome/browser/ui/views/proximity_auth/proximity_auth_error_bubble_view.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0f80790a3c4c7e22055603fd5633473843c3391c
--- /dev/null
+++ b/chrome/browser/ui/views/proximity_auth/proximity_auth_error_bubble_view.cc
@@ -0,0 +1,119 @@
+// Copyright 2014 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/proximity_auth/proximity_auth_error_bubble_view.h"
+
+#include "base/strings/string_util.h"
+#include "chrome/browser/ui/proximity_auth/proximity_auth_error_bubble.h"
+#include "content/public/browser/page_navigator.h"
+#include "content/public/browser/web_contents.h"
+#include "grit/theme_resources.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/range/range.h"
+#include "ui/views/bubble/bubble_border.h"
+#include "ui/views/controls/image_view.h"
+#include "ui/views/controls/styled_label.h"
+#include "ui/views/layout/grid_layout.h"
+#include "ui/views/widget/widget.h"
+
+namespace {
+
+// The bubble's content area width, in device pixels.

[Tim Song, 2015/01/15 19:29:24]

nit: device independent pixels

[Ilya Sherman, 2015/01/16 05:39:42]

Done.

+const int kBubbleWidth = 296;
+
+// The padding between columns in the bubble.
+const int kBubbleIntraColumnPadding = 6;
+
+// A styled label that maintains a fixed preferred size.
+class FixedSizeStyledLabel : public views::StyledLabel {
+ public:
+  FixedSizeStyledLabel(const base::string16& text,
+                       views::StyledLabelListener* listener)
+      : views::StyledLabel(text, listener) {}
+  ~FixedSizeStyledLabel() override {}
+
+ private:
+  gfx::Size GetPreferredSize() const override {
+    return size();
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(FixedSizeStyledLabel);
+};
+
+}  // namespace
+
+// static
+void ProximityAuthErrorBubble::ShowErrorBubble(
+    const base::string16& message,
+    const gfx::Range& link_range,
+    const GURL& link_url,
+    const gfx::Rect& anchor_rect,
+    content::WebContents* web_contents) {
+  // The created bubble is owned by the views hierarchy.
+  new ProximityAuthErrorBubbleView(
+      message, link_range, link_url, anchor_rect, web_contents);
+}
+
+ProximityAuthErrorBubbleView::ProximityAuthErrorBubbleView(
+    const base::string16& message,
+    const gfx::Range& link_range,
+    const GURL& link_url,
+    const gfx::Rect& anchor_rect,
+    content::WebContents* web_contents)
+    : WebContentsObserver(web_contents),
+      link_url_(link_url) {
+  SetAnchorRect(anchor_rect);
+  set_arrow(views::BubbleBorder::LEFT_TOP);
+
+  // Define this grid layout for the bubble:
+  // ----------------------------
+  // | icon | padding | message |
+  // ----------------------------
+  scoped_ptr<views::GridLayout> layout(new views::GridLayout(this));
+  views::ColumnSet* columns = layout->AddColumnSet(0);
+  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::LEADING, 0,
+                     views::GridLayout::USE_PREF, 0, 0);
+  columns->AddPaddingColumn(0, kBubbleIntraColumnPadding);
+  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::LEADING, 0,

[Tim Song, 2015/01/15 19:29:24]

Can't you use views::GridLayout::FIXED for the second column to avoid creating a
FixedSizeStyledLabel class?

[Ilya Sherman, 2015/01/16 05:39:42]

Done.

+                     views::GridLayout::USE_PREF, 0, 0);
+
+  // Construct the views.
+  scoped_ptr<views::ImageView> warning_icon(new views::ImageView());
+  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
+  warning_icon->SetImage(*bundle.GetImageSkiaNamed(IDR_WARNING));
+
+  scoped_ptr<FixedSizeStyledLabel> label(
+      new FixedSizeStyledLabel(message, this));
+  if (!link_range.is_empty()) {
+    label->AddStyleRange(link_range,
+                         views::StyledLabel::RangeStyleInfo::CreateForLink());
+  }
+  label->SizeToFit(
+      kBubbleWidth - margins().width() - warning_icon->size().width() -
+      kBubbleIntraColumnPadding);
+
+  // Add the views to the bubble.
+  layout->StartRow(0, 0);
+  layout->AddView(warning_icon.release());
+  layout->AddView(label.release());
+  SetLayoutManager(layout.release());
+
+  views::Widget* widget = views::BubbleDelegateView::CreateBubble(this);
+  widget->Show();
+}
+
+ProximityAuthErrorBubbleView::~ProximityAuthErrorBubbleView() {
+}
+
+void ProximityAuthErrorBubbleView::StyledLabelLinkClicked(
+    const gfx::Range& range,
+    int event_flags) {
+  if (!web_contents())
+    return;
+
+  web_contents()->OpenURL(content::OpenURLParams(
+      link_url_, content::Referrer(), NEW_FOREGROUND_TAB,
+      ui::PAGE_TRANSITION_LINK, false));
+}