Move common app_list delegate code to chrome/browser/ui/app_list.

chrome/browser/ui/ash/app_list/search_builder.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 "chrome/browser/ui/ash/app_list/search_builder.h"
-
-#include <string>
-
-#include "base/command_line.h"
-#include "chrome/browser/autocomplete/autocomplete_controller.h"
-#include "chrome/browser/autocomplete/autocomplete_input.h"
-#include "chrome/browser/autocomplete/autocomplete_match.h"
-#include "chrome/browser/autocomplete/autocomplete_result.h"
-#include "chrome/browser/autocomplete/extension_app_provider.h"
-#include "chrome/browser/event_disposition.h"
-#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/image_loading_tracker.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/ash/app_list/app_list_controller.h"
-#include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_navigator.h"
-#include "chrome/browser/ui/browser_tabstrip.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_constants.h"
-#include "chrome/common/extensions/extension_icon_set.h"
-#include "chrome/common/url_constants.h"
-#include "content/public/browser/user_metrics.h"
-#include "content/public/browser/web_contents.h"
-#include "grit/generated_resources.h"
-#include "grit/theme_resources.h"
-#include "ui/app_list/app_list_switches.h"
-#include "ui/app_list/search_box_model.h"
-#include "ui/app_list/search_result.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-
-namespace {
-
-int ACMatchStyleToTagStyle(int styles) {
-  int tag_styles = 0;
-  if (styles & ACMatchClassification::URL)
-    tag_styles |= app_list::SearchResult::Tag::URL;
-  if (styles & ACMatchClassification::MATCH)
-    tag_styles |= app_list::SearchResult::Tag::MATCH;
-  if (styles & ACMatchClassification::DIM)
-    tag_styles |= app_list::SearchResult::Tag::DIM;
-
-  return tag_styles;
-}
-
-// Translates ACMatchClassifications into SearchResult tags.
-void ACMatchClassificationsToTags(
-    const string16& text,
-    const ACMatchClassifications& text_classes,
-    app_list::SearchResult::Tags* tags) {
-  int tag_styles = app_list::SearchResult::Tag::NONE;
-  size_t tag_start = 0;
-
-  for (size_t i = 0; i < text_classes.size(); ++i) {
-    const ACMatchClassification& text_class = text_classes[i];
-
-    // Closes current tag.
-    if (tag_styles != app_list::SearchResult::Tag::NONE) {
-      tags->push_back(app_list::SearchResult::Tag(
-          tag_styles, tag_start, text_class.offset));
-      tag_styles = app_list::SearchResult::Tag::NONE;
-    }
-
-    if (text_class.style == ACMatchClassification::NONE)
-      continue;
-
-    tag_start = text_class.offset;
-    tag_styles = ACMatchStyleToTagStyle(text_class.style);
-  }
-
-  if (tag_styles != app_list::SearchResult::Tag::NONE) {
-    tags->push_back(app_list::SearchResult::Tag(
-        tag_styles, tag_start, text.length()));
-  }
-}
-
-const extensions::Extension* GetExtensionByURL(Profile* profile,
-                                               const GURL& url) {
-  ExtensionService* service = profile->GetExtensionService();
-  // Need to explicitly get chrome app because it does not override new tab and
-  // not having a web extent to include new tab url, thus GetInstalledApp does
-  // not find it.
-  return url.spec() == chrome::kChromeUINewTabURL ?
-      service->extensions()->GetByID(extension_misc::kChromeAppId) :
-      service->GetInstalledApp(url);
-}
-
-// SearchBuildResult is an app list SearchResult built from an
-// AutocompleteMatch.
-class SearchBuilderResult : public app_list::SearchResult,
-                            public ImageLoadingTracker::Observer {
- public:
-  SearchBuilderResult(Profile* profile,
-                      const AutocompleteMatch& match)
-      : profile_(profile),
-        match_(match) {
-    UpdateIcon();
-    UpdateTitleAndDetails();
-  }
-
-  const AutocompleteMatch& match() const {
-    return match_;
-  }
-
- private:
-  void UpdateIcon() {
-    if (match_.type == AutocompleteMatch::EXTENSION_APP) {
-      const extensions::Extension* extension =
-          GetExtensionByURL(profile_, match_.destination_url);
-      if (extension) {
-        LoadExtensionIcon(extension);
-        return;
-      }
-    }
-
-    int resource_id = match_.starred ?
-        IDR_OMNIBOX_STAR : AutocompleteMatch::TypeToIcon(match_.type);
-    SetIcon(*ui::ResourceBundle::GetSharedInstance().GetBitmapNamed(
-        resource_id));
-  }
-
-  void LoadExtensionIcon(const extensions::Extension* extension) {
-    tracker_.reset(new ImageLoadingTracker(this));
-    // TODO(xiyuan): Fix this for HD.
-    tracker_->LoadImage(extension,
-                        extension->GetIconResource(
-                            extension_misc::EXTENSION_ICON_SMALL,
-                            ExtensionIconSet::MATCH_BIGGER),
-                        gfx::Size(extension_misc::EXTENSION_ICON_SMALL,
-                                  extension_misc::EXTENSION_ICON_SMALL),
-                        ImageLoadingTracker::DONT_CACHE);
-  }
-
-  void UpdateTitleAndDetails() {
-    set_title(match_.contents);
-    app_list::SearchResult::Tags title_tags;
-    ACMatchClassificationsToTags(match_.contents,
-                                 match_.contents_class,
-                                 &title_tags);
-    set_title_tags(title_tags);
-
-    set_details(match_.description);
-    app_list::SearchResult::Tags details_tags;
-    ACMatchClassificationsToTags(match_.description,
-                                 match_.description_class,
-                                 &details_tags);
-    set_details_tags(details_tags);
-  }
-
-  // Overridden from ImageLoadingTracker::Observer:
-  virtual void OnImageLoaded(const gfx::Image& image,
-                             const std::string& extension_id,
-                             int tracker_index) OVERRIDE {
-    if (!image.IsEmpty()) {
-      SetIcon(*image.ToSkBitmap());
-      return;
-    }
-
-    SetIcon(profile_->GetExtensionService()->GetOmniboxPopupIcon(extension_id).
-        AsImageSkia());
-  }
-
-  Profile* profile_;
-  AutocompleteMatch match_;
-  scoped_ptr<ImageLoadingTracker> tracker_;
-
-  DISALLOW_COPY_AND_ASSIGN(SearchBuilderResult);
-};
-
-}  // namespace
-
-SearchBuilder::SearchBuilder(
-    Profile* profile,
-    app_list::SearchBoxModel* search_box,
-    app_list::AppListModel::SearchResults* results,
-    AppListController* list_controller)
-    : profile_(profile),
-      search_box_(search_box),
-      results_(results),
-      list_controller_(list_controller) {
-  search_box_->SetHintText(
-      l10n_util::GetStringUTF16(IDS_SEARCH_BOX_HINT));
-  search_box_->SetIcon(*ui::ResourceBundle::GetSharedInstance().
-      GetImageSkiaNamed(IDR_OMNIBOX_SEARCH));
-
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          app_list::switches::kAppListShowAppsOnly)) {
-    // ExtensionAppProvider is a synchronous provider and does not really need a
-    // listener.
-    apps_provider_ = new ExtensionAppProvider(NULL, profile);
-  } else {
-    controller_.reset(new AutocompleteController(profile, this));
-  }
-}
-
-SearchBuilder::~SearchBuilder() {
-}
-
-void SearchBuilder::StartSearch() {
-  const string16& user_text = search_box_->text();
-
-  if (controller_.get()) {
-    // Omnibox features such as keyword selection/accepting and instant query
-    // are not implemented.
-    // TODO(xiyuan): Figure out the features that need to support here.
-    controller_->Start(user_text, string16(), false, false, true,
-        AutocompleteInput::ALL_MATCHES);
-  } else {
-    AutocompleteInput input(user_text, string16(), false, false, true,
-        AutocompleteInput::ALL_MATCHES);
-    apps_provider_->Start(input, false);
-
-    // ExtensionAppProvider is a synchronous provider and results are ready
-    // after returning from Start.
-    AutocompleteResult ac_result;
-    ac_result.AppendMatches(apps_provider_->matches());
-    ac_result.SortAndCull(input);
-    PopulateFromACResult(ac_result);
-  }
-}
-
-void SearchBuilder::StopSearch() {
-  if (controller_.get())
-    controller_->Stop(true);
-  else
-    apps_provider_->Stop(true);
-}
-
-void SearchBuilder::OpenResult(const app_list::SearchResult& result,
-                               int event_flags) {
-  const SearchBuilderResult* builder_result =
-      static_cast<const SearchBuilderResult*>(&result);
-  const AutocompleteMatch& match = builder_result->match();
-
-  // Count AppList.Search here because it is composed of search + action.
-  content::RecordAction(content::UserMetricsAction("AppList_Search"));
-
-  if (match.type == AutocompleteMatch::EXTENSION_APP) {
-    const extensions::Extension* extension =
-        GetExtensionByURL(profile_, match.destination_url);
-    if (extension) {
-      content::RecordAction(
-          content::UserMetricsAction("AppList_ClickOnAppFromSearch"));
-      list_controller_->ActivateApp(profile_, extension->id(), event_flags);
-    }
-  } else {
-    // TODO(xiyuan): What should we do for alternate url case?
-    chrome::NavigateParams params(profile_,
-                                  match.destination_url,
-                                  match.transition);
-    params.disposition = chrome::DispositionFromEventFlags(event_flags);
-    chrome::Navigate(&params);
-  }
-}
-
-void SearchBuilder::PopulateFromACResult(const AutocompleteResult& ac_result) {
-  results_->DeleteAll();
-  for (ACMatches::const_iterator it = ac_result.begin();
-       it != ac_result.end();
-       ++it) {
-    results_->Add(new SearchBuilderResult(profile_, *it));
-  }
-}
-
-void SearchBuilder::OnResultChanged(bool default_match_changed) {
-  // TODO(xiyuan): Handle default match properly.
-  const AutocompleteResult& ac_result = controller_->result();
-  PopulateFromACResult(ac_result);
-}