1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_RESULT_VIEW_H_ 6 #define CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_RESULT_VIEW_H_ 7 #pragma once 8 9 #include "chrome/browser/autocomplete/autocomplete_match.h" 10 #include "third_party/skia/include/core/SkColor.h" 11 #include "ui/gfx/font.h" 12 #include "ui/gfx/rect.h" 13 #include "views/view.h" 14 15 class AutocompleteResultViewModel; 16 namespace gfx { 17 class Canvas; 18 } 19 20 class AutocompleteResultView : public views::View { 21 public: 22 enum ResultViewState { 23 NORMAL = 0, 24 SELECTED, 25 HOVERED, 26 NUM_STATES 27 }; 28 29 enum ColorKind { 30 BACKGROUND = 0, 31 TEXT, 32 DIMMED_TEXT, 33 URL, 34 NUM_KINDS 35 }; 36 37 AutocompleteResultView(AutocompleteResultViewModel* model, 38 int model_index, 39 const gfx::Font& font, 40 const gfx::Font& bold_font); 41 virtual ~AutocompleteResultView(); 42 43 static SkColor GetColor(ResultViewState state, ColorKind kind); 44 45 // Updates the match used to paint the contents of this result view. We copy 46 // the match so that we can continue to paint the last result even after the 47 // model has changed. 48 void SetMatch(const AutocompleteMatch& match); 49 50 protected: 51 virtual void PaintMatch(gfx::Canvas* canvas, 52 const AutocompleteMatch& match, 53 int x); 54 virtual int GetFontHeight() const; 55 56 // Draws the specified |text| into the canvas, using highlighting provided by 57 // |classifications|. If |force_dim| is true, ACMatchClassification::DIM is 58 // added to all of the classifications. Returns the x position to the right 59 // of the string. 60 int DrawString(gfx::Canvas* canvas, 61 const string16& text, 62 const ACMatchClassifications& classifications, 63 bool force_dim, 64 int x, 65 int y); 66 text_bounds()67 const gfx::Rect& text_bounds() const { return text_bounds_; } 68 69 private: 70 struct ClassificationData; 71 typedef std::vector<ClassificationData> Classifications; 72 73 struct RunData; 74 typedef std::vector<RunData> Runs; 75 76 // Predicate functions for use when sorting the runs. 77 static bool SortRunsLogically(const RunData& lhs, const RunData& rhs); 78 static bool SortRunsVisually(const RunData& lhs, const RunData& rhs); 79 80 ResultViewState GetState() const; 81 const SkBitmap* GetIcon() const; 82 83 // Elides |runs| to fit in |remaining_width|. The runs in |runs| should be in 84 // logical order. 85 // 86 // When we need to elide a run, the ellipsis will be placed at the end of that 87 // run. This means that if we elide a run whose visual direction is opposite 88 // that of the drawing context, the ellipsis will not be at the "end" of the 89 // drawn string. For example, if in an LTR context we have the LTR run 90 // "LTR_STRING" and the RTL run "RTL_STRING", the unelided text would be drawn 91 // like: 92 // LTR_STRING GNIRTS_LTR 93 // If we need to elide the RTL run, then it will be drawn like: 94 // LTR_STRING ...RTS_LTR 95 // Instead of: 96 // LTR_STRING RTS_LTR... 97 void Elide(Runs* runs, int remaining_width) const; 98 99 // views::View: 100 virtual gfx::Size GetPreferredSize() OVERRIDE; 101 virtual void Layout() OVERRIDE; 102 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 103 104 static int default_icon_size_; 105 106 // This row's model and model index. 107 AutocompleteResultViewModel* model_; 108 size_t model_index_; 109 110 const gfx::Font normal_font_; 111 const gfx::Font bold_font_; 112 113 // Width of the ellipsis in the normal font. 114 int ellipsis_width_; 115 116 // A context used for mirroring regions. 117 class MirroringContext; 118 scoped_ptr<MirroringContext> mirroring_context_; 119 120 AutocompleteMatch match_; 121 122 gfx::Rect text_bounds_; 123 gfx::Rect icon_bounds_; 124 125 DISALLOW_COPY_AND_ASSIGN(AutocompleteResultView); 126 }; 127 128 #endif // CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_RESULT_VIEW_H_ 129