components/open_from_clipboard/clipboard_url_provider.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/open_from_clipboard/clipboard_url_provider.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "components/omnibox/autocomplete_input.h"
  10 #include "components/open_from_clipboard/clipboard_recent_content.h"
  11 #include "grit/components_strings.h"
  12 #include "ui/base/l10n/l10n_util.h"
  13
  14 namespace {
  15 // Score defining the priority of the suggestion. 1600 guarantees that the
  16 // suggestion will always be first. See table in autocomplete_provider.h.
  17 const int kClipboardURLProviderRelevance = 1600;
  18 }  // namespace
  19
  20 ClipboardURLProvider::ClipboardURLProvider(
  21     ClipboardRecentContent* clipboard_recent_content,
  22     const PlaceholderRequestCallback& placeholder_match_getter)
  23     : AutocompleteProvider(AutocompleteProvider::TYPE_SHORTCUTS),
  24       clipboard_recent_content_(clipboard_recent_content),
  25       placeholder_match_getter_(placeholder_match_getter) {
  26   DCHECK(clipboard_recent_content_);
  27 }
  28
  29 ClipboardURLProvider::~ClipboardURLProvider() {
  30 }
  31
  32 void ClipboardURLProvider::Start(const AutocompleteInput& input,
  33                                  bool minimal_changes) {
  34   matches_.clear();
  35   if (!input.from_omnibox_focus())
  36     return;
  37   // Attempt to add an AutocompleteMatch only if the user has not entered
  38   // anything in the omnibox.
  39   if (input.cursor_position() == base::string16::npos) {
  40     GURL url;
  41     // Add the suggestion only if the user is not already on the page stored
  42     // in the clipboard.
  43     if (clipboard_recent_content_->GetRecentURLFromClipboard(&url) &&
  44         url != input.current_url()) {
  45       DCHECK(url.is_valid());
  46       AutocompleteMatch match(this, kClipboardURLProviderRelevance, false,
  47                               AutocompleteMatchType::NAVSUGGEST_PERSONALIZED);
  48       match.allowed_to_be_default_match = true;
  49       match.destination_url = url;
  50       match.contents.assign(base::UTF8ToUTF16(url.spec()));
  51       AutocompleteMatch::ClassifyLocationInString(
  52           base::string16::npos, 0, match.contents.length(),
  53           ACMatchClassification::URL, &match.contents_class);
  54
  55       match.description.assign(
  56           l10n_util::GetStringUTF16(IDS_LINK_FROM_CLIPBOARD));
  57       AutocompleteMatch::ClassifyLocationInString(
  58           base::string16::npos, 0, match.description.length(),
  59           ACMatchClassification::URL, &match.description_class);
  60       // Adds a default match. This match will be opened when the user presses
  61       // "Go".
  62       AutocompleteMatch current_url_match(placeholder_match_getter_.Run(input));
  63       if (current_url_match.destination_url.is_valid()) {
  64         // Makes the placeholder match be above the clipboard match.
  65         current_url_match.relevance = kClipboardURLProviderRelevance + 1;
  66         matches_.push_back(current_url_match);
  67       }
  68
  69       matches_.push_back(match);
  70     }
  71   }
  72   done_ = true;
  73 }