Interactive autofill: Adds footnote view to accept legal documents in the UI.

chrome/browser/ui/views/autofill/autofill_dialog_views.h

Index: chrome/browser/ui/views/autofill/autofill_dialog_views.h
diff --git a/chrome/browser/ui/views/autofill/autofill_dialog_views.h b/chrome/browser/ui/views/autofill/autofill_dialog_views.h
index a71d67c850372aa4252d6c6254792a08519ab73f..faacbbfdad8dd9b28e3b2983c0aa8b8998e31f32 100644
--- a/chrome/browser/ui/views/autofill/autofill_dialog_views.h
+++ b/chrome/browser/ui/views/autofill/autofill_dialog_views.h
@@ -7,6 +7,7 @@
 
 #include <map>
 
+#include "base/memory/scoped_vector.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_view.h"
 #include "ui/views/controls/button/button.h"
@@ -24,6 +25,7 @@ class KeyboardListener;
 }
 
 namespace gfx {
+class Font;
 class Image;
 }
 
@@ -31,6 +33,7 @@ namespace views {
 class Checkbox;
 class Combobox;
 class FocusManager;
+class GridLayout;
 class ImageButton;
 class ImageView;
 class Label;
@@ -76,6 +79,7 @@ class AutofillDialogViews : public AutofillDialogView,
   virtual const content::NavigationController& ShowSignIn() OVERRIDE;
   virtual void HideSignIn() OVERRIDE;
   virtual void UpdateProgressBar(double value) OVERRIDE;
+  virtual void UpdateFootnote() OVERRIDE;
 
   // views::DialogDelegate implementation:
   virtual string16 GetWindowTitle() const OVERRIDE;
@@ -262,13 +266,66 @@ class AutofillDialogViews : public AutofillDialogView,
    public:
     AutocheckoutProgressBar();
 
-   private:
     // Overidden from View:
     virtual gfx::Size GetPreferredSize() OVERRIDE;
 
+   private:
     DISALLOW_COPY_AND_ASSIGN(AutocheckoutProgressBar);
   };
 
+  class FootnoteView : public views::View {
+   public:
+    FootnoteView();
+    virtual ~FootnoteView();
+
+    void AddLabel(views::Label* label, bool is_link);
+    int IndexOfLink(views::Label* link);  // Returns -1 if not found.
+
+    // views::View implementation.
+    virtual std::string GetClassName() const OVERRIDE;
+    virtual void Layout() OVERRIDE;
+
+   private:
+    struct FootnoteLabel {
+      scoped_ptr<views::Label> label;
+      bool is_link;
+    };
+
+    void StartRow();
+    views::View* CurrentRow();
+    void ResetLayoutManager();
+    void ResetRows();
+
+    void AppendText(const string16& text_part);
+    const string16& CurrentText() const;
+    void ResetText();
+
+    void AddWidth(size_t width);
+    size_t CurrentWidth() const;
+    int ParentWidth();
+    void ResetWidth();
+    int WidthRemaining();
+
+    void AddCloneWithWidth(views::Label* label, size_t width);
+    views::Label* CloneLabel(const string16& text,
+                             const gfx::Font& font,
+                             bool is_link);
+    void TransferListener(views::Label* from_label, views::Label* to_label);
+
+    void Reset();
+
+    ScopedVector<FootnoteLabel> footnote_labels_;  // owned by us.
+    std::vector<views::Label*> links_;  // weak.
+    string16 current_text_;
+
+    size_t current_width_;
+    views::GridLayout* layout_;  // weak; owned by view hierarchy.
+    int previous_parent_width_;
+    const int single_column_set_;
+
+    DISALLOW_COPY_AND_ASSIGN(FootnoteView);
+  };
+
   typedef std::map<DialogSection, DetailsGroup> DetailGroupMap;
 
   void InitChildViews();
@@ -279,11 +336,17 @@ class AutofillDialogViews : public AutofillDialogView,
   // Creates and returns a view that holds the requesting host and intro text.
   views::View* CreateNotificationArea();
 
+  // Creates and returns a view that holds the main controls of this dialog.
+  views::View* CreateMainContainer();
+
   // Creates and returns a view that holds a sign in page and related controls.
   views::View* CreateSignInContainer();
 
-  // Creates and returns a view that holds the main controls of this dialog.
-  views::View* CreateMainContainer();
+  // Creates footnote container.
+  void CreateFootnoteView();
+
+  // [Re-]populates footnote links based on the controller's link text parts.
+  void PopulateFootnoteLinks();
 
   // Creates a detail section (Shipping, Email, etc.) with the given label,
   // inputs View, and suggestion model. Relevant pointers are stored in |group|.
@@ -323,6 +386,10 @@ class AutofillDialogViews : public AutofillDialogView,
   // the input.
   void TextfieldEditedOrActivated(views::Textfield* textfield, bool was_edit);
 
+  // When something inside of |contents_| could've changed in height, call this
+  // to ensure |contents_|' preferred size is correct.
+  void ContentsResized();
+
   // The controller that drives this view. Weak pointer, always non-NULL.
   AutofillDialogController* const controller_;
 
@@ -379,6 +446,10 @@ class AutofillDialogViews : public AutofillDialogView,
   // Progress bar for displaying Autocheckout progress.
   AutocheckoutProgressBar* autocheckout_progress_bar_;
 
+  // View shown when accepting of a new Terms of Service is required. Lives
+  // below the Cancel/Submit buttons.
+  FootnoteView* footnote_view_;
+
   // The focus manager for |window_|.
   views::FocusManager* focus_manager_;