Elide text in the new Autofill UI

chrome/browser/ui/autofill/autofill_popup_controller_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/string16.h"
 #include "chrome/browser/ui/autofill/autofill_popup_controller.h"
 #include "content/public/browser/keyboard_listener.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/rect.h"
 
 class AutofillPopupDelegate;
 class AutofillPopupView;
 
+namespace gfx {
+class Display;
+}
+
 namespace ui {
 class KeyEvent;
 }
 
 // This class is a controller for an AutofillPopupView. It implements
 // AutofillPopupController to allow calls from AutofillPopupView. The
 // other, public functions are available to its instantiator.
 class AutofillPopupControllerImpl : public AutofillPopupController,
                                     public content::KeyboardListener {
  public:
@@ skipping 30 matching lines @@
   virtual ~AutofillPopupControllerImpl();
 
   // AutofillPopupController implementation.
   virtual void ViewDestroyed() OVERRIDE;
   virtual void UpdateBoundsAndRedrawPopup() OVERRIDE;
   virtual void MouseHovered(int x, int y) OVERRIDE;
   virtual void MouseClicked(int x, int y) OVERRIDE;
   virtual void MouseExitedPopup() OVERRIDE;
   virtual void AcceptSuggestion(size_t index) OVERRIDE;
   virtual int GetIconResourceID(const string16& resource_name) OVERRIDE;
-  virtual bool CanDelete(size_t index) OVERRIDE;
-#if !defined(OS_ANDROID)
-  virtual int GetPopupRequiredWidth() OVERRIDE;
-  virtual int GetPopupRequiredHeight() OVERRIDE;
-#endif
+  virtual bool CanDelete(size_t index) const OVERRIDE;
   virtual gfx::Rect GetRowBounds(size_t index) OVERRIDE;
   virtual void SetPopupBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual const gfx::Rect& popup_bounds() const OVERRIDE;
   virtual gfx::NativeView container_view() const OVERRIDE;
   virtual const gfx::Rect& element_bounds() const OVERRIDE;
   virtual const std::vector<string16>& names() const OVERRIDE;
   virtual const std::vector<string16>& subtexts() const OVERRIDE;
   virtual const std::vector<string16>& icons() const OVERRIDE;
   virtual const std::vector<int>& identifiers() const OVERRIDE;
 #if !defined(OS_ANDROID)
@@ skipping 19 matching lines @@
   // The user has choosen the selected line.
   bool AcceptSelectedLine();
 
   // The user has removed a suggestion.
   bool RemoveSelectedLine();
 
   // Convert a y-coordinate to the closest line.
   int LineFromY(int y);
 
   // Returns the height of a row depending on its type.
-  int GetRowHeightFromId(int identifier);
+  int GetRowHeightFromId(int identifier) const;
 
   // Returns true if the given |x| and |y| coordinates refer to a point that
   // hits the delete icon in the current selected line.
   bool DeleteIconIsUnder(int x, int y);
 
   // Returns true if the given id refers to an element that can be accepted.
   bool CanAccept(int id);
 
   // Returns true if the popup still has non-options entries to show the user.
   bool HasSuggestions();
 
   AutofillPopupView* view() { return view_; }
 
   // |view_| pass throughs (virtual for testing).
   virtual void ShowView();
   virtual void InvalidateRow(size_t row);
 
+  // Protected so tests can access.
+#if !defined(OS_ANDROID)
+  // Calculates the desired width of the popup based on its contents.
+  int GetDesiredPopupWidth() const;
+
+  // Calculates the desired height of the popup based on its contents.
+  int GetDesiredPopupHeight() const;
+#endif
+
  private:
+#if !defined(OS_ANDROID)
+  // Calculate the width of the row, excluding all the text. This provides
+  // the size of the row that won't be reducible (since all the text can be
+  // elided if there isn't enough space).
+  int RowWidthWithoutText(int row) const;
+
+  // Calculates and sets the bounds of the popup, including placing it properly
+  // to prevent it from going off the screen.
+  void UpdatePopupBounds();
+#endif
+
+  // A helper function to get the display closest to the given point (virtual
+  // for testing).
+  virtual gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const;
+
+  // Calculates the width of the popup and the x position of it. These values
+  // will stay on the screen.
+  std::pair<int, int> CalculatePopupXAndWidth(
+      const gfx::Display& left_display,
+      const gfx::Display& right_display,
+      int popup_required_width) const;
+
+  // Calculates the height of the popup and the y position of it. These values
+  // will stay on the screen.
+  std::pair<int, int> CalculatePopupYAndHeight(
+      const gfx::Display& top_display,
+      const gfx::Display& bottom_display,
+      int popup_required_height) const;
+
   AutofillPopupView* view_;  // Weak reference.
   AutofillPopupDelegate* delegate_;  // Weak reference.
   gfx::NativeView container_view_;  // Weak reference.
 
   // The bounds of the text element that is the focus of the Autofill.
   // These coordinates are in screen space.
   const gfx::Rect element_bounds_;
 
   // The bounds of the Autofill popup.
   gfx::Rect popup_bounds_;
 
   // The current Autofill query values.
   std::vector<string16> names_;
   std::vector<string16> subtexts_;
   std::vector<string16> icons_;
   std::vector<int> identifiers_;
 
+  // Since names_ can be elided to ensure that it fits on the screen, we need to
+  // keep an unelided copy of the names to be able to pass to the delegate.
+  std::vector<string16> full_names_;
+
 #if !defined(OS_ANDROID)
   // The fonts for the popup text.
   gfx::Font name_font_;
   gfx::Font subtext_font_;
 #endif
 
   // The line that is currently selected by the user.
   // |kNoSelection| indicates that no line is currently selected.
   int selected_line_;
 
   // Used to indicate if the delete icon within a row is currently selected.
   bool delete_icon_hovered_;
 
   // True if |HideInternal| has already been called.
   bool is_hiding_;
 
   // True if the delegate should be informed when |this| is destroyed.
   bool inform_delegate_of_destruction_;
 };
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_