Re-land 53849 (Revert 53857) - Implement most of the startup page controls in DOMUI prefs

Hooks up display of startup pages, removal of pages, and setting the startup pages to the currently open tabs.
Uses a select for now, but will eventually be replaced with a List so the favicons can be displayed.

BUG=48713
TEST=Startup pages can be viewed, removed, and set to current in DOMUI prefs.

Review URL: http://codereview.chromium.org/3046025

TBR=stuartmorgan@chromium.org
Review URL: http://codereview.chromium.org/3058018

TBR=stuartmorgan@chromium.org
Review URL: http://codereview.chromium.org/3032035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54031 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 198 insertions, 19 deletions

diff --git a/chrome/browser/custom_home_pages_table_model.cc b/chrome/browser/custom_home_pages_table_model.cc
index 6095afe..90dd523 100644
--- a/chrome/browser/custom_home_pages_table_model.cc
+++ b/chrome/browser/custom_home_pages_table_model.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/profile.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/common/url_constants.h"
 #include "gfx/codec/png_codec.h"
 #include "grit/app_resources.h"
 #include "grit/generated_resources.h"
@@ -83,7 +84,9 @@ void CustomHomePagesTableModel::SetToCurrentlyOpenPages() {
 
     for (int tab_index = 0; tab_index < browser->tab_count(); ++tab_index) {
       const GURL url = browser->GetTabContentsAt(tab_index)->GetURL();
-      if (!url.is_empty())
+      if (!url.is_empty() &&
+          !(url.SchemeIs(chrome::kChromeUIScheme) &&
+            url.host() == chrome::kChromeUIOptionsHost))
         Add(add_index++, url);
     }
   }
diff --git a/chrome/browser/dom_ui/browser_options_handler.cc b/chrome/browser/dom_ui/browser_options_handler.cc
index 58d002d..fda6802 100644
--- a/chrome/browser/dom_ui/browser_options_handler.cc
+++ b/chrome/browser/dom_ui/browser_options_handler.cc
@@ -10,13 +10,15 @@
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
+#include "chrome/browser/custom_home_pages_table_model.h"
 #include "chrome/browser/profile.h"
+#include "chrome/browser/session_startup_pref.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 
 BrowserOptionsHandler::BrowserOptionsHandler()
-    : template_url_model_(NULL) {
+    : template_url_model_(NULL), startup_custom_pages_table_model_(NULL) {
 #if !defined(OS_MACOSX)
   default_browser_worker_ = new ShellIntegration::DefaultBrowserWorker(this);
 #endif
@@ -75,17 +77,18 @@ void BrowserOptionsHandler::RegisterMessages() {
   dom_ui_->RegisterMessageCallback(
       "setDefaultSearchEngine",
       NewCallback(this, &BrowserOptionsHandler::SetDefaultSearchEngine));
+  dom_ui_->RegisterMessageCallback(
+      "removeStartupPages",
+      NewCallback(this, &BrowserOptionsHandler::RemoveStartupPages));
+  dom_ui_->RegisterMessageCallback(
+      "setStartupPagesToCurrentPages",
+      NewCallback(this, &BrowserOptionsHandler::SetStartupPagesToCurrentPages));
 }
 
 void BrowserOptionsHandler::Initialize() {
   UpdateDefaultBrowserState();
-
-  template_url_model_ = dom_ui_->GetProfile()->GetTemplateURLModel();
-  if (template_url_model_) {
-    template_url_model_->Load();
-    template_url_model_->AddObserver(this);
-    OnTemplateURLModelChanged();
-  }
+  UpdateStartupPages();
+  UpdateSearchEngines();
 }
 
 void BrowserOptionsHandler::UpdateDefaultBrowserState() {
@@ -211,3 +214,89 @@ void BrowserOptionsHandler::SetDefaultSearchEngine(const Value* value) {
     template_url_model_->SetDefaultSearchProvider(model_urls[selected_index]);
 }
 
+void BrowserOptionsHandler::UpdateSearchEngines() {
+  template_url_model_ = dom_ui_->GetProfile()->GetTemplateURLModel();
+  if (template_url_model_) {
+    template_url_model_->Load();
+    template_url_model_->AddObserver(this);
+    OnTemplateURLModelChanged();
+  }
+}
+
+void BrowserOptionsHandler::UpdateStartupPages() {
+  Profile* profile = dom_ui_->GetProfile();
+  startup_custom_pages_table_model_.reset(
+      new CustomHomePagesTableModel(profile));
+  startup_custom_pages_table_model_->SetObserver(this);
+
+  const SessionStartupPref startup_pref =
+      SessionStartupPref::GetStartupPref(profile->GetPrefs());
+  startup_custom_pages_table_model_->SetURLs(startup_pref.urls);
+}
+
+void BrowserOptionsHandler::OnModelChanged() {
+  // TODO(stuartmorgan): Add support for showing favicons.
+  ListValue startup_pages;
+  int page_count = startup_custom_pages_table_model_->RowCount();
+  for (int i = 0; i < page_count; ++i) {
+    DictionaryValue* entry = new DictionaryValue();
+    entry->SetString(L"title",
+                     startup_custom_pages_table_model_->GetText(i, 0));
+    entry->SetString(L"tooltip",
+                     startup_custom_pages_table_model_->GetTooltip(i));
+    startup_pages.Append(entry);
+  }
+
+  dom_ui_->CallJavascriptFunction(L"BrowserOptions.updateStartupPages",
+                                  startup_pages);
+}
+
+void BrowserOptionsHandler::OnItemsChanged(int start, int length) {
+  OnModelChanged();
+}
+
+void BrowserOptionsHandler::OnItemsAdded(int start, int length) {
+  OnModelChanged();
+}
+
+void BrowserOptionsHandler::OnItemsRemoved(int start, int length) {
+  OnModelChanged();
+}
+
+void BrowserOptionsHandler::SetStartupPagesToCurrentPages(const Value* value) {
+  startup_custom_pages_table_model_->SetToCurrentlyOpenPages();
+  SaveStartupPagesPref();
+}
+
+void BrowserOptionsHandler::RemoveStartupPages(const Value* value) {
+  if (!value || !value->IsType(Value::TYPE_LIST)) {
+    NOTREACHED();
+    return;
+  }
+  const ListValue* param_values = static_cast<const ListValue*>(value);
+  for (int i = param_values->GetSize() - 1; i >= 0; --i) {
+    std::string string_value;
+    if (!param_values->GetString(i, &string_value)) {
+      NOTREACHED();
+      return;
+    }
+    int selected_index = StringToInt(string_value);
+    if (selected_index < 0 ||
+        selected_index >= startup_custom_pages_table_model_->RowCount()) {
+      NOTREACHED();
+      return;
+    }
+    startup_custom_pages_table_model_->Remove(selected_index);
+  }
+
+  SaveStartupPagesPref();
+}
+
+void BrowserOptionsHandler::SaveStartupPagesPref() {
+  PrefService* prefs = dom_ui_->GetProfile()->GetPrefs();
+
+  SessionStartupPref pref = SessionStartupPref::GetStartupPref(prefs);
+  pref.urls = startup_custom_pages_table_model_->GetURLs();
+
+  SessionStartupPref::SetStartupPref(prefs, pref);
+}
diff --git a/chrome/browser/dom_ui/browser_options_handler.h b/chrome/browser/dom_ui/browser_options_handler.h
index 6c37bd5..794b525 100644
--- a/chrome/browser/dom_ui/browser_options_handler.h
+++ b/chrome/browser/dom_ui/browser_options_handler.h
@@ -6,14 +6,18 @@
 #define CHROME_BROWSER_DOM_UI_BROWSER_OPTIONS_HANDLER_H_
 #pragma once
 
+#include "app/table_model_observer.h"
 #include "chrome/browser/dom_ui/options_ui.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/browser/shell_integration.h"
 
+class CustomHomePagesTableModel;
+
 // Chrome browser options page UI handler.
 class BrowserOptionsHandler : public OptionsPageUIHandler,
                               public ShellIntegration::DefaultBrowserObserver,
-                              public TemplateURLModelObserver {
+                              public TemplateURLModelObserver,
+                              public TableModelObserver {
  public:
   BrowserOptionsHandler();
   virtual ~BrowserOptionsHandler();
@@ -31,6 +35,12 @@ class BrowserOptionsHandler : public OptionsPageUIHandler,
   // TemplateURLModelObserver implementation.
   virtual void OnTemplateURLModelChanged();
 
+  // TableModelObserver implementation.
+  virtual void OnModelChanged();
+  virtual void OnItemsChanged(int start, int length);
+  virtual void OnItemsAdded(int start, int length);
+  virtual void OnItemsRemoved(int start, int length);
+
  private:
   // Makes this the default browser. Called from DOMUI.
   void BecomeDefaultBrowser(const Value* value);
@@ -38,6 +48,12 @@ class BrowserOptionsHandler : public OptionsPageUIHandler,
   // Sets the search engine at the given index to be default. Called from DOMUI.
   void SetDefaultSearchEngine(const Value* value);
 
+  // Removes the startup page at the given indexes. Called from DOMUI.
+  void RemoveStartupPages(const Value* value);
+
+  // Sets the startup page set to the current pages. Called from DOMUI.
+  void SetStartupPagesToCurrentPages(const Value* value);
+
   // Returns the string ID for the given default browser state.
   int StatusStringIdForState(ShellIntegration::DefaultBrowserState state);
 
@@ -48,10 +64,24 @@ class BrowserOptionsHandler : public OptionsPageUIHandler,
   // Updates the UI with the given state for the default browser.
   void SetDefaultBrowserUIString(int status_string_id);
 
+  // Loads the current set of custom startup pages and reports it to the DOMUI.
+  void UpdateStartupPages();
+
+  // Loads the possible default search engine list and reports it to the DOMUI.
+  void UpdateSearchEngines();
+
+  // Writes the current set of startup pages to prefs.
+  void SaveStartupPagesPref();
+
   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
 
   TemplateURLModel* template_url_model_;  // Weak.
 
+  // TODO(stuartmorgan): Once there are no other clients of
+  // CustomHomePagesTableModel, consider changing it to something more like
+  // TemplateURLModel.
+  scoped_ptr<CustomHomePagesTableModel> startup_custom_pages_table_model_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
diff --git a/chrome/browser/resources/options/browser_options.html b/chrome/browser/resources/options/browser_options.html
index abeb46e..7a8ad39 100644
--- a/chrome/browser/resources/options/browser_options.html
+++ b/chrome/browser/resources/options/browser_options.html
@@ -13,13 +13,13 @@
           pref="session.restore_on_startup" value="4"><span
           i18n-content="startupShowPages"></span></label>
       <div class="suboption">
-        <select id="startupPages" size="3">
+        <select id="startupPages" size="3" multiple>
         </select><br>
         <button id="startupAddButton"
             i18n-content="startupAddButton"></button>
         <button id="startupRemoveButton" disabled
             i18n-content="startupRemoveButton"></button>
-        <button id="startupUseCurrentButton" disabled
+        <button id="startupUseCurrentButton"
             i18n-content="startupUseCurrent"></button>
       </div>
     </div>
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index 834c993..53e0656 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -23,15 +23,19 @@ BrowserOptions.prototype = {
     // Call base class implementation to start preference initialization.
     OptionsPage.prototype.initializePage.call(this);
 
-    // Wire up buttons.
+    // Wire up controls.
+    var self = this;
+    $('startupPages').onchange = function(event) {
+      self.updateRemoveButtonState_();
+    };
     $('startupAddButton').onclick = function(event) {
       OptionsPage.showOverlay('addStartupPageOverlay');
     };
     $('startupRemoveButton').onclick = function(event) {
-      // TODO(stuartmorgan): Remove selected element(s).
+      self.removeSelectedStartupPages_();
     };
     $('startupUseCurrentButton').onclick = function(event) {
-      // TODO(stuartmorgan): Add all open tabs (except this one).
+      chrome.send('setStartupPagesToCurrentPages');
     };
     $('defaultSearchManageEnginesButton').onclick = function(event) {
       OptionsPage.showPageByName('searchEngines');
@@ -81,10 +85,10 @@ BrowserOptions.prototype = {
   updateSearchEngines_: function(engines, defaultValue) {
     this.clearSearchEngines_();
     engineSelect = $('defaultSearchEngine');
-    engineCount = engines.length
+    engineCount = engines.length;
     var defaultIndex = -1;
     for (var i = 0; i < engineCount; i++) {
-      var engine = engines[i]
+      var engine = engines[i];
       var option = new Option(engine['name'], engine['index']);
       if (defaultValue == option.value)
         defaultIndex = i;
@@ -95,6 +99,55 @@ BrowserOptions.prototype = {
   },
 
   /**
+   * Clears the startup page list.
+   * @private
+   */
+  clearStartupPages_: function() {
+    $('startupPages').textContent = '';
+  },
+
+  /**
+   * Updates the startup pages list with the given entries.
+   * @param {Array} pages List of startup pages.
+   */
+  updateStartupPages_: function(pages) {
+    // TODO(stuartmorgan): Replace <select> with a DOMUI List.
+    this.clearStartupPages_();
+    pageList = $('startupPages');
+    pageCount = pages.length;
+    for (var i = 0; i < pageCount; i++) {
+      var page = pages[i];
+      var option = new Option(page['title']);
+      option.title = page['tooltip'];
+      pageList.appendChild(option);
+    }
+
+    this.updateRemoveButtonState_();
+  },
+
+  /**
+   * Sets the enabled state of the startup page Remove button based on
+   * the current selection in the startup pages list.
+   */
+  updateRemoveButtonState_: function() {
+    $('startupRemoveButton').disabled = ($('startupPages').selectedIndex == -1);
+  },
+
+  /**
+   * Removes the selected startup pages.
+   */
+  removeSelectedStartupPages_: function() {
+    var pageSelect = $('startupPages');
+    var optionCount = pageSelect.options.length;
+    var selections = [];
+    for (var i = 0; i < optionCount; i++) {
+      if (pageSelect.options[i].selected)
+        selections.push(String(i));
+    }
+    chrome.send('removeStartupPages', selections);
+  },
+
+  /**
    * Set the default search engine based on the popup selection.
    */
   setDefaultBrowser: function() {
@@ -110,8 +163,12 @@ BrowserOptions.prototype = {
 BrowserOptions.updateDefaultBrowserState = function(statusString, isDefault) {
   BrowserOptions.getInstance().updateDefaultBrowserState_(statusString,
                                                           isDefault);
-}
+};
 
 BrowserOptions.updateSearchEngines = function(engines, defaultValue) {
   BrowserOptions.getInstance().updateSearchEngines_(engines, defaultValue);
-}
+};
+
+BrowserOptions.updateStartupPages = function(pages) {
+  BrowserOptions.getInstance().updateStartupPages_(pages);
+};