components/omnibox/browser/omnibox_view.cc

   1 // Copyright (c) 2012 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 // This file defines helper functions shared by the various implementations
   6 // of OmniboxView.
   7
   8 #include "components/omnibox/browser/omnibox_view.h"
   9
  10 #include "base/strings/string16.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "components/omnibox/browser/autocomplete_match.h"
  14 #include "components/omnibox/browser/omnibox_client.h"
  15 #include "components/omnibox/browser/omnibox_edit_controller.h"
  16 #include "components/toolbar/toolbar_model.h"
  17 #include "grit/components_scaled_resources.h"
  18 #include "ui/base/l10n/l10n_util.h"
  19
  20 // static
  21 base::string16 OmniboxView::StripJavascriptSchemas(const base::string16& text) {
  22   const base::string16 kJsPrefix(
  23       base::ASCIIToUTF16(url::kJavaScriptScheme) + base::ASCIIToUTF16(":"));
  24   base::string16 out(text);
  25   while (base::StartsWith(out, kJsPrefix,
  26                           base::CompareCase::INSENSITIVE_ASCII)) {
  27     base::TrimWhitespace(out.substr(kJsPrefix.length()), base::TRIM_LEADING,
  28                          &out);
  29   }
  30   return out;
  31 }
  32
  33 // static
  34 base::string16 OmniboxView::SanitizeTextForPaste(const base::string16& text) {
  35   // Check for non-newline whitespace; if found, collapse whitespace runs down
  36   // to single spaces.
  37   // TODO(shess): It may also make sense to ignore leading or
  38   // trailing whitespace when making this determination.
  39   for (size_t i = 0; i < text.size(); ++i) {
  40     if (base::IsUnicodeWhitespace(text[i]) &&
  41         text[i] != '\n' && text[i] != '\r') {
  42       const base::string16 collapsed = base::CollapseWhitespace(text, false);
  43       // If the user is pasting all-whitespace, paste a single space
  44       // rather than nothing, since pasting nothing feels broken.
  45       return collapsed.empty() ?
  46           base::ASCIIToUTF16(" ") : StripJavascriptSchemas(collapsed);
  47     }
  48   }
  49
  50   // Otherwise, all whitespace is newlines; remove it entirely.
  51   return StripJavascriptSchemas(base::CollapseWhitespace(text, true));
  52 }
  53
  54 OmniboxView::~OmniboxView() {
  55 }
  56
  57 void OmniboxView::OpenMatch(const AutocompleteMatch& match,
  58                             WindowOpenDisposition disposition,
  59                             const GURL& alternate_nav_url,
  60                             const base::string16& pasted_text,
  61                             size_t selected_line) {
  62   // Invalid URLs such as chrome://history can end up here.
  63   if (!match.destination_url.is_valid() || !model_)
  64     return;
  65   model_->OpenMatch(
  66       match, disposition, alternate_nav_url, pasted_text, selected_line);
  67   OnMatchOpened(match);
  68 }
  69
  70 bool OmniboxView::IsEditingOrEmpty() const {
  71   return (model_.get() && model_->user_input_in_progress()) ||
  72       (GetOmniboxTextLength() == 0);
  73 }
  74
  75 int OmniboxView::GetIcon() const {
  76   if (!IsEditingOrEmpty())
  77     return controller_->GetToolbarModel()->GetIcon();
  78   int id = AutocompleteMatch::TypeToIcon(model_.get() ?
  79       model_->CurrentTextType() : AutocompleteMatchType::URL_WHAT_YOU_TYPED);
  80   return (id == IDR_OMNIBOX_HTTP) ? IDR_LOCATION_BAR_HTTP : id;
  81 }
  82
  83 void OmniboxView::SetUserText(const base::string16& text) {
  84   SetUserText(text, text, true);
  85 }
  86
  87 void OmniboxView::SetUserText(const base::string16& text,
  88                               const base::string16& display_text,
  89                               bool update_popup) {
  90   if (model_.get())
  91     model_->SetUserText(text);
  92   SetWindowTextAndCaretPos(display_text, display_text.length(), update_popup,
  93                            true);
  94 }
  95
  96 void OmniboxView::ShowURL() {
  97   SetFocus();
  98   controller_->GetToolbarModel()->set_url_replacement_enabled(false);
  99   model_->UpdatePermanentText();
 100   RevertWithoutResettingSearchTermReplacement();
 101   SelectAll(true);
 102 }
 103
 104 void OmniboxView::HideURL() {
 105   controller_->GetToolbarModel()->set_url_replacement_enabled(true);
 106   model_->UpdatePermanentText();
 107   RevertWithoutResettingSearchTermReplacement();
 108 }
 109
 110 void OmniboxView::RevertAll() {
 111   controller_->GetToolbarModel()->set_url_replacement_enabled(true);
 112   RevertWithoutResettingSearchTermReplacement();
 113 }
 114
 115 void OmniboxView::RevertWithoutResettingSearchTermReplacement() {
 116   CloseOmniboxPopup();
 117   if (model_.get())
 118     model_->Revert();
 119   TextChanged();
 120 }
 121
 122 void OmniboxView::CloseOmniboxPopup() {
 123   if (model_.get())
 124     model_->StopAutocomplete();
 125 }
 126
 127 bool OmniboxView::IsImeShowingPopup() const {
 128   // Default to claiming that the IME is not showing a popup, since hiding the
 129   // omnibox dropdown is a bad user experience when we don't know for sure that
 130   // we have to.
 131   return false;
 132 }
 133
 134 void OmniboxView::ShowImeIfNeeded() {
 135 }
 136
 137 bool OmniboxView::IsIndicatingQueryRefinement() const {
 138   // The default implementation always returns false.  Mobile ports can override
 139   // this method and implement as needed.
 140   return false;
 141 }
 142
 143 void OmniboxView::OnMatchOpened(const AutocompleteMatch& match) {
 144 }
 145
 146 OmniboxView::OmniboxView(OmniboxEditController* controller,
 147                          scoped_ptr<OmniboxClient> client)
 148     : controller_(controller) {
 149   // |client| can be null in tests.
 150   if (client) {
 151     model_.reset(
 152         new OmniboxEditModel(this, controller, client.Pass()));
 153   }
 154 }
 155
 156 void OmniboxView::TextChanged() {
 157   EmphasizeURLComponents();
 158   if (model_.get())
 159     model_->OnChanged();
 160 }