Translate: New Bubble UX (for the view toolkit)

chrome/browser/tab_contents/language_state.h

Index: chrome/browser/tab_contents/language_state.h
diff --git a/chrome/browser/tab_contents/language_state.h b/chrome/browser/tab_contents/language_state.h
index b5ac059c29f4c0e1c831066b95c5ce5fe1c230f4..a193edfc660e0d10976f43f3ad03b672251a73b3 100644
--- a/chrome/browser/tab_contents/language_state.h
+++ b/chrome/browser/tab_contents/language_state.h
@@ -10,8 +10,9 @@
 #include "base/basictypes.h"
 
 namespace content {
-class NavigationController;
 struct LoadCommittedDetails;
+class NavigationController;
+class WebContents;
 }
 
 // This class holds the language state of the current page.
@@ -25,6 +26,14 @@ struct LoadCommittedDetails;
 
 class LanguageState {
  public:
+  class Observer {
+   public:
+    virtual void OnTranslateEnabledChanged(content::WebContents* source) = 0;

[sky, 2013/10/18 14:31:10]

Add description. Also, I would prefer this in its own header.

[hajimehoshi, 2013/10/21 10:29:12]

Done.

+
+   protected:
+    virtual ~Observer() {}
+  };
+
   explicit LanguageState(content::NavigationController* nav_controller);
   ~LanguageState();
 
@@ -71,6 +80,15 @@ class LanguageState {
   // navigation.
   bool in_page_navigation() const { return in_page_navigation_; }
 
+  bool translate_enabled() const { return translate_enabled_; }
+  void SetTranslateEnabled(bool value);
+
+  // Whether the current page's language is different from the previous
+  // language.
+  bool IsLanguageChanged() const;

[sky, 2013/10/18 14:31:10]

HasLanguageChanged

[hajimehoshi, 2013/10/21 10:29:12]

Done.

+
+  void set_observer(Observer* observer) { observer_ = observer; }
+
  private:
   // The languages this page is in. Note that current_lang_ is different from
   // original_lang_ when the page has been translated.
@@ -109,6 +127,11 @@ class LanguageState {
   // Whether the current navigation is a fragment navigation (in page).
   bool in_page_navigation_;
 
+  // Whether the Translate is enabled.
+  bool translate_enabled_;
+
+  Observer* observer_;
+
   DISALLOW_COPY_AND_ASSIGN(LanguageState);
 };