Reintroduce password support to NativeTextfieldViews

ui/gfx/render_text.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 UI_GFX_RENDER_TEXT_H_
 #define UI_GFX_RENDER_TEXT_H_
 #pragma once
 
 #include <algorithm>
 #include <vector>
@@ skipping 134 matching lines @@
 
   bool insert_mode() const { return insert_mode_; }
   void ToggleInsertMode();
 
   bool focused() const { return focused_; }
   void set_focused(bool focused) { focused_ = focused; }
 
   const StyleRange& default_style() const { return default_style_; }
   void set_default_style(const StyleRange& style) { default_style_ = style; }
 
+  // In an obscured (password) field, all text is drawn as asterisks or bullets.
+  bool is_obscured() const { return obscured_; }
+  void SetObscured(bool obscured);
+
   const Rect& display_rect() const { return display_rect_; }
   void SetDisplayRect(const Rect& r);
 
   void set_fade_head(bool fade_head) { fade_head_ = fade_head; }
   bool fade_head() const { return fade_head_; }
   void set_fade_tail(bool fade_tail) { fade_tail_ = fade_tail; }
   bool fade_tail() const { return fade_tail_; }
 
   // This cursor position corresponds to SelectionModel::selection_end. In
   // addition to representing the selection end, it's also where logical text
@@ skipping 153 matching lines @@
   // Update the layout so that the next draw request can correctly
   // render the text and its attributes.
   virtual void UpdateLayout() = 0;
 
   // Ensure the text is laid out.
   virtual void EnsureLayout() = 0;
 
   // Draw the text.
   virtual void DrawVisualText(Canvas* canvas) = 0;
 
+  // Like text() except that it returns asterisks or bullets if this is an
+  // obscured field.
+  string16 GetDisplayText() const;
+
   // Apply composition style (underline) to composition range and selection
   // style (foreground) to selection range.
   void ApplyCompositionAndSelectionStyles(StyleRanges* style_ranges);
 
   // Returns the text origin after applying text alignment and display offset.
   Point GetTextOrigin();
 
   // Convert points from the text space to the view space and back.
   // Handles the display area, display offset, and the application LTR/RTL mode.
   Point ToTextPoint(const Point& point);
@@ skipping 12 matching lines @@
   // Applies fade effects to |renderer|.
   void ApplyFadeEffects(internal::SkiaTextRenderer* renderer);
 
  private:
   friend class RenderTextTest;
 
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, DefaultStyle);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, CustomDefaultStyle);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, ApplyStyleRange);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, StyleRangesAdjust);
+  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, PasswordCensorship);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, GraphemePositions);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, SelectionModels);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, OriginForSkiaDrawing);
 
   // Set the cursor to |position|, with the caret trailing the previous
   // grapheme, or if there is no previous grapheme, leading the cursor position.
   // If |select| is false, the selection start is moved to the same position.
   // If the |position| is not a cursorable position (not on grapheme boundary),
   // it is a NO-OP.
   void MoveCursorTo(size_t position, bool select);
@@ skipping 33 matching lines @@
   bool focused_;
 
   // Composition text range.
   ui::Range composition_range_;
 
   // List of style ranges. Elements in the list never overlap each other.
   StyleRanges style_ranges_;
   // The default text style.
   StyleRange default_style_;
 
+  // True if this is an obscured (password) field.
+  bool obscured_;
+
   // Fade text head and/or tail, if text doesn't fit into |display_rect_|.
   bool fade_head_;
   bool fade_tail_;
 
   // The local display area for rendering the text.
   Rect display_rect_;
 
   // The offset for the text to be drawn, relative to the display area.
   // Get this point with GetUpdatedDisplayOffset (or risk using a stale value).
   Point display_offset_;
 
   // The cached bounds and offset are invalidated by changes to the cursor,
   // selection, font, and other operations that adjust the visible text bounds.
   bool cached_bounds_and_offset_valid_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderText);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_H_