chrome/browser/ui/omnibox/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 "chrome/browser/ui/omnibox/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 "chrome/browser/autocomplete/autocomplete_match.h"
  14 #include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
  15 #include "chrome/browser/ui/toolbar/toolbar_model.h"
  16 #include "ui/base/clipboard/clipboard.h"
  17
  18 // static
  19 string16 OmniboxView::StripJavascriptSchemas(const string16& text) {
  20   const string16 kJsPrefix(ASCIIToUTF16(content::kJavaScriptScheme) +
  21                            ASCIIToUTF16(":"));
  22   string16 out(text);
  23   while (StartsWith(out, kJsPrefix, false))
  24     TrimWhitespace(out.substr(kJsPrefix.length()), TRIM_LEADING, &out);
  25   return out;
  26 }
  27
  28 // static
  29 string16 OmniboxView::SanitizeTextForPaste(const string16& text) {
  30   // Check for non-newline whitespace; if found, collapse whitespace runs down
  31   // to single spaces.
  32   // TODO(shess): It may also make sense to ignore leading or
  33   // trailing whitespace when making this determination.
  34   for (size_t i = 0; i < text.size(); ++i) {
  35     if (IsWhitespace(text[i]) && text[i] != '\n' && text[i] != '\r') {
  36       const string16 collapsed = CollapseWhitespace(text, false);
  37       // If the user is pasting all-whitespace, paste a single space
  38       // rather than nothing, since pasting nothing feels broken.
  39       return collapsed.empty() ?
  40           ASCIIToUTF16(" ") : StripJavascriptSchemas(collapsed);
  41     }
  42   }
  43
  44   // Otherwise, all whitespace is newlines; remove it entirely.
  45   return StripJavascriptSchemas(CollapseWhitespace(text, true));
  46 }
  47
  48 // static
  49 string16 OmniboxView::GetClipboardText() {
  50   // Try text format.
  51   ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread();
  52   if (clipboard->IsFormatAvailable(ui::Clipboard::GetPlainTextWFormatType(),
  53                                    ui::Clipboard::BUFFER_STANDARD)) {
  54     string16 text;
  55     clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &text);
  56     return SanitizeTextForPaste(text);
  57   }
  58
  59   // Try bookmark format.
  60   //
  61   // It is tempting to try bookmark format first, but the URL we get out of a
  62   // bookmark has been cannonicalized via GURL.  This means if a user copies
  63   // and pastes from the URL bar to itself, the text will get fixed up and
  64   // cannonicalized, which is not what the user expects.  By pasting in this
  65   // order, we are sure to paste what the user copied.
  66   if (clipboard->IsFormatAvailable(ui::Clipboard::GetUrlWFormatType(),
  67                                    ui::Clipboard::BUFFER_STANDARD)) {
  68     std::string url_str;
  69     clipboard->ReadBookmark(NULL, &url_str);
  70     // pass resulting url string through GURL to normalize
  71     GURL url(url_str);
  72     if (url.is_valid())
  73       return StripJavascriptSchemas(UTF8ToUTF16(url.spec()));
  74   }
  75
  76   return string16();
  77 }
  78
  79 OmniboxView::~OmniboxView() {
  80 }
  81
  82 void OmniboxView::OpenMatch(const AutocompleteMatch& match,
  83                             WindowOpenDisposition disposition,
  84                             const GURL& alternate_nav_url,
  85                             size_t selected_line) {
  86   // Invalid URLs such as chrome://history can end up here.
  87   if (!match.destination_url.is_valid())
  88     return;
  89   if (model_.get())
  90     model_->OpenMatch(match, disposition, alternate_nav_url, selected_line);
  91 }
  92
  93 bool OmniboxView::IsEditingOrEmpty() const {
  94   return (model_.get() && model_->user_input_in_progress()) ||
  95       (GetOmniboxTextLength() == 0);
  96 }
  97
  98 int OmniboxView::GetIcon() const {
  99   if (!IsEditingOrEmpty())
 100     return controller_->GetToolbarModel()->GetIcon();
 101   return AutocompleteMatch::TypeToLocationBarIcon(model_.get() ?
 102       model_->CurrentTextType() : AutocompleteMatchType::URL_WHAT_YOU_TYPED);
 103 }
 104
 105 void OmniboxView::SetUserText(const string16& text) {
 106   SetUserText(text, text, true);
 107 }
 108
 109 void OmniboxView::SetUserText(const string16& text,
 110                               const string16& display_text,
 111                               bool update_popup) {
 112   if (model_.get())
 113     model_->SetUserText(text);
 114   SetWindowTextAndCaretPos(display_text, display_text.length(), update_popup,
 115                            true);
 116 }
 117
 118 void OmniboxView::RevertAll() {
 119   CloseOmniboxPopup();
 120   if (model_.get())
 121     model_->Revert();
 122   TextChanged();
 123 }
 124
 125 void OmniboxView::CloseOmniboxPopup() {
 126   if (model_.get())
 127     model_->StopAutocomplete();
 128 }
 129
 130 bool OmniboxView::IsImeShowingPopup() const {
 131   // Default to claiming that the IME is not showing a popup, since hiding the
 132   // omnibox dropdown is a bad user experience when we don't know for sure that
 133   // we have to.
 134   return false;
 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 OmniboxView::OmniboxView(Profile* profile,
 144                          OmniboxEditController* controller,
 145                          CommandUpdater* command_updater)
 146     : controller_(controller),
 147       command_updater_(command_updater) {
 148   // |profile| can be NULL in tests.
 149   if (profile)
 150     model_.reset(new OmniboxEditModel(this, controller, profile));
 151 }
 152
 153 void OmniboxView::TextChanged() {
 154   EmphasizeURLComponents();
 155   if (model_.get())
 156     model_->OnChanged();
 157 }