Translate: Move label parsing logic into common code.

* Add a string16 & Cocoa version of GetStringF().
* Move logic for parsing translate infobar label into translate_infobars_delegates.
* Make views variant of translate infobars use new code.

BUG=34466
TEST=Translate infobars should continue to workon Windows.

Review URL: http://codereview.chromium.org/597042

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39206 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 43 insertions, 0 deletions

diff --git a/chrome/browser/translate/translate_infobars_delegates.cc b/chrome/browser/translate/translate_infobars_delegates.cc
index ed86b6c..06d7da8 100644
--- a/chrome/browser/translate/translate_infobars_delegates.cc
+++ b/chrome/browser/translate/translate_infobars_delegates.cc
@@ -158,6 +158,34 @@ void TranslateInfoBarDelegate::ToggleAlwaysTranslate() {
   }
 }
 
+void TranslateInfoBarDelegate::GetMessageText(string16 *message_text,
+     std::vector<size_t> *offsets, bool *swapped_language_placeholders) {
+  *swapped_language_placeholders = false;
+  offsets->clear();
+
+  std::vector<size_t> offsets_tmp;
+  int message_resource_id = IDS_TRANSLATE_INFOBAR_BEFORE_MESSAGE;
+  if (state() == kAfterTranslate)
+    message_resource_id = IDS_TRANSLATE_INFOBAR_AFTER_MESSAGE;
+  *message_text = l10n_util::GetStringFUTF16(message_resource_id,
+      string16(), string16(), &offsets_tmp);
+
+  if (offsets_tmp.empty() || offsets_tmp.size() > 2) {
+    NOTREACHED() << "Invalid no. of placeholders in label.";
+    return;
+  }
+  // Sort the offsets if necessary.
+  if (offsets_tmp.size() == 2 && offsets_tmp[0] > offsets_tmp[1]) {
+    size_t offset0 = offsets_tmp[0];
+    offsets_tmp[0] = offsets_tmp[1];
+    offsets_tmp[1] = offset0;
+    *swapped_language_placeholders = true;
+  }
+  if (offsets_tmp[offsets_tmp.size() - 1] != message_text->length())
+    offsets_tmp.push_back(message_text->length());
+  *offsets = offsets_tmp;
+}
+
 // TranslateInfoBarDelegate: static: -------------------------------------------
 
 string16 TranslateInfoBarDelegate::GetDisplayNameForLocale(
diff --git a/chrome/browser/translate/translate_infobars_delegates.h b/chrome/browser/translate/translate_infobars_delegates.h
index 311b847..ceeda17 100644
--- a/chrome/browser/translate/translate_infobars_delegates.h
+++ b/chrome/browser/translate/translate_infobars_delegates.h
@@ -60,6 +60,21 @@ class TranslateInfoBarDelegate : public InfoBarDelegate {
     return state_;
   }
 
+  // Retrieve the text for the toolbar label.  The toolbar label is a bit
+  // strange since we need to place popup menus inside the string in question.
+  // To do this we use two placeholders.
+  //
+  // |message_text| is the text to display for the label.
+  // |offsets| contains the offsets of the number of placeholders in the text
+  // + message_text->length() i.e. it can contain 2 or 3 elements.
+  // offsets[0] < offsets[1] even in cases where the languages need to be
+  // displayed in reverse order.
+  // |swapped_language_placeholders| is true if we need to flip the order
+  // of the menus in the current locale.
+  void GetMessageText(string16 *message_text,
+                      std::vector<size_t> *offsets,
+                      bool *swapped_language_placeholders);
+
   // Overridden from InfoBarDelegate.
   virtual Type GetInfoBarType() {
     return PAGE_ACTION_TYPE;