[WebIntents, Views] Add dialog for empty picker.

chrome/browser/ui/views/web_intent_picker_views.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 <algorithm>
 #include <vector>
 
 #include "base/memory/scoped_vector.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
@@ skipping 671 matching lines @@
 
   // LinkListener implementation.
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
   // WebIntentPicker implementation.
   virtual void Close() OVERRIDE;
   virtual void SetActionString(const string16& action) OVERRIDE;
   virtual void OnExtensionInstallSuccess(const std::string& id) OVERRIDE;
   virtual void OnExtensionInstallFailure(const std::string& id) OVERRIDE;
   virtual void OnInlineDispositionAutoResize(const gfx::Size& size) OVERRIDE;
+  virtual void OnPendingAsyncCompleted() OVERRIDE;
   virtual void OnInlineDispositionWebContentsLoaded(
       content::WebContents* web_contents) OVERRIDE;
 
   // WebIntentPickerModelObserver implementation.
   virtual void OnModelChanged(WebIntentPickerModel* model) OVERRIDE;
   virtual void OnFaviconChanged(WebIntentPickerModel* model,
                                 size_t index) OVERRIDE;
   virtual void OnExtensionIconChanged(WebIntentPickerModel* model,
                                       const string16& extension_id) OVERRIDE;
   virtual void OnInlineDisposition(const string16& title,
@@ skipping 183 matching lines @@
   // TODO(binji): What to display to user on failure?
 }
 
 void WebIntentPickerViews::OnInlineDispositionAutoResize(
     const gfx::Size& size) {
   webview_->SetPreferredSize(size);
   contents_->Layout();
   SizeToContents();
 }
 
+void WebIntentPickerViews::OnPendingAsyncCompleted() {
+  // Requests to both the WebIntentService and the Chrome Web Store have
+  // completed. If there are any services, installed or suggested, there's
+  // nothing to do.
+  if (model_->GetInstalledServiceCount() ||
+      model_->GetSuggestedExtensionCount())
+    return;
+
+  // If there are no installed or suggested services at this point,
+  // inform the user about it.
+  contents_->RemoveAllChildViews(true);
+  more_suggestions_link_ = NULL;
+
+  views::GridLayout* grid_layout = new views::GridLayout(contents_);
+  contents_->SetLayoutManager(grid_layout);
+
+  grid_layout->SetInsets(kContentAreaBorder, kContentAreaBorder,
+                         kContentAreaBorder, kContentAreaBorder);
+  views::ColumnSet* main_cs = grid_layout->AddColumnSet(0);
+  main_cs->AddColumn(GridLayout::FILL, GridLayout::LEADING, 1,
+                     GridLayout::USE_PREF, 0, 0);
+
+  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+
+  grid_layout->StartRow(0, 0);
+  views::Label* header = new views::Label();
+  header->SetVisible(true);
+  header->SetMultiLine(false);

[Peter Kasting, 2012/07/11 23:47:47]

Nit: Isn't multiline=false the default?  I thought maybe a few others of these
were defaults as well...

[groby-ooo-7-16, 2012/07/12 00:00:38]

Yes, it is - thanks for pointing it out.
On 2012/07/11 23:47:47, Peter Kasting wrote:

+  header->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
+  header->SetFont(rb.GetFont(ui::ResourceBundle::MediumFont));
+  header->SetText(l10n_util::GetStringUTF16(
+      IDS_INTENT_PICKER_NO_SERVICES_TITLE));
+  grid_layout->AddView(header);
+
+  grid_layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
+
+  grid_layout->StartRow(0, 0);
+  views::Label* body = new views::Label();
+  body->SetVisible(true);
+  body->SetMultiLine(true);
+  body->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
+  body->SetText(l10n_util::GetStringUTF16(IDS_INTENT_PICKER_NO_SERVICES));
+  grid_layout->AddView(body);
+
+  contents_->Layout();
+  SizeToContents();
+}
+
 void WebIntentPickerViews::OnInlineDispositionWebContentsLoaded(
     content::WebContents* web_contents) {
   if (displaying_web_contents_)
     return;
 
   // Replace the picker with the inline disposition.
   contents_->RemoveAllChildViews(true);
   more_suggestions_link_ = NULL;
 
   views::GridLayout* grid_layout = new views::GridLayout(contents_);
@@ skipping 259 matching lines @@
   views::ImageButton* close_button = new views::ImageButton(this);
   close_button->SetImage(views::CustomButton::BS_NORMAL,
                           rb.GetImageSkiaNamed(IDR_CLOSE_BAR));
   close_button->SetImage(views::CustomButton::BS_HOT,
                           rb.GetImageSkiaNamed(IDR_CLOSE_BAR_H));
   close_button->SetImage(views::CustomButton::BS_PUSHED,
                           rb.GetImageSkiaNamed(IDR_CLOSE_BAR_P));
   return close_button;
 }
 #endif