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| 1 // Copyright (c) 2012 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/base/animation/animation_delegate.h" | |
| 12 #include "ui/base/animation/slide_animation.h" | |
| 13 #include "ui/gfx/font.h" | |
| 14 #include "ui/gfx/rect.h" | |
| 15 #include "ui/views/controls/image_view.h" | |
| 16 #include "ui/views/view.h" | |
| 17 | |
| 18 class AutocompleteResultViewModel; | |
| 19 | |
| 20 namespace gfx { | |
| 21 class Canvas; | |
| 22 } | |
| 23 | |
| 24 class AutocompleteResultView : public views::View, | |
| 25 private ui::AnimationDelegate { | |
| 26 public: | |
| 27 // Keep these ordered from least dominant (normal) to most dominant | |
| 28 // (selected). | |
| 29 enum ResultViewState { | |
| 30 NORMAL = 0, | |
| 31 HOVERED, | |
| 32 SELECTED, | |
| 33 NUM_STATES | |
| 34 }; | |
| 35 | |
| 36 enum ColorKind { | |
| 37 BACKGROUND = 0, | |
| 38 TEXT, | |
| 39 DIMMED_TEXT, | |
| 40 URL, | |
| 41 DIVIDER, | |
| 42 NUM_KINDS | |
| 43 }; | |
| 44 | |
| 45 AutocompleteResultView(AutocompleteResultViewModel* model, | |
| 46 int model_index, | |
| 47 const gfx::Font& font, | |
| 48 const gfx::Font& bold_font); | |
| 49 virtual ~AutocompleteResultView(); | |
| 50 | |
| 51 static SkColor GetColor(ResultViewState state, ColorKind kind); | |
| 52 | |
| 53 // Updates the match used to paint the contents of this result view. We copy | |
| 54 // the match so that we can continue to paint the last result even after the | |
| 55 // model has changed. | |
| 56 void SetMatch(const AutocompleteMatch& match); | |
| 57 | |
| 58 void ShowKeyword(bool show_keyword); | |
| 59 | |
| 60 void Invalidate(); | |
| 61 | |
| 62 // views::View: | |
| 63 virtual gfx::Size GetPreferredSize() OVERRIDE; | |
| 64 | |
| 65 ResultViewState GetState() const; | |
| 66 | |
| 67 protected: | |
| 68 virtual void PaintMatch(gfx::Canvas* canvas, | |
| 69 const AutocompleteMatch& match, | |
| 70 int x); | |
| 71 | |
| 72 // Returns the height of the text portion of the result view. In the base | |
| 73 // class, this is the height of one line of text. | |
| 74 virtual int GetTextHeight() const; | |
| 75 | |
| 76 // Draws the specified |text| into the canvas, using highlighting provided by | |
| 77 // |classifications|. If |force_dim| is true, ACMatchClassification::DIM is | |
| 78 // added to all of the classifications. Returns the x position to the right | |
| 79 // of the string. | |
| 80 int DrawString(gfx::Canvas* canvas, | |
| 81 const string16& text, | |
| 82 const ACMatchClassifications& classifications, | |
| 83 bool force_dim, | |
| 84 int x, | |
| 85 int y); | |
| 86 | |
| 87 const gfx::Rect& text_bounds() const { return text_bounds_; } | |
| 88 | |
| 89 void set_edge_item_padding(int value) { edge_item_padding_ = value; } | |
| 90 void set_item_padding(int value) { item_padding_ = value; } | |
| 91 void set_minimum_text_vertical_padding(int value) { | |
| 92 minimum_text_vertical_padding_ = value; | |
| 93 } | |
| 94 | |
| 95 private: | |
| 96 struct ClassificationData; | |
| 97 typedef std::vector<ClassificationData> Classifications; | |
| 98 | |
| 99 struct RunData; | |
| 100 typedef std::vector<RunData> Runs; | |
| 101 | |
| 102 // Predicate functions for use when sorting the runs. | |
| 103 static bool SortRunsLogically(const RunData& lhs, const RunData& rhs); | |
| 104 static bool SortRunsVisually(const RunData& lhs, const RunData& rhs); | |
| 105 | |
| 106 const SkBitmap* GetIcon() const; | |
| 107 const gfx::ImageSkia* GetKeywordIcon() const; | |
| 108 | |
| 109 // Elides |runs| to fit in |remaining_width|. The runs in |runs| should be in | |
| 110 // logical order. | |
| 111 // | |
| 112 // When we need to elide a run, the ellipsis will be placed at the end of that | |
| 113 // run. This means that if we elide a run whose visual direction is opposite | |
| 114 // that of the drawing context, the ellipsis will not be at the "end" of the | |
| 115 // drawn string. For example, if in an LTR context we have the LTR run | |
| 116 // "LTR_STRING" and the RTL run "RTL_STRING", the unelided text would be drawn | |
| 117 // like: | |
| 118 // LTR_STRING GNIRTS_LTR | |
| 119 // If we need to elide the RTL run, then it will be drawn like: | |
| 120 // LTR_STRING ...RTS_LTR | |
| 121 // Instead of: | |
| 122 // LTR_STRING RTS_LTR... | |
| 123 void Elide(Runs* runs, int remaining_width) const; | |
| 124 | |
| 125 // views::View: | |
| 126 virtual void Layout() OVERRIDE; | |
| 127 virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE; | |
| 128 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | |
| 129 | |
| 130 // ui::AnimationDelegate: | |
| 131 virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE; | |
| 132 | |
| 133 static int default_icon_size_; | |
| 134 | |
| 135 // Default values cached here, may be overridden using the setters above. | |
| 136 int edge_item_padding_; | |
| 137 int item_padding_; | |
| 138 int minimum_text_vertical_padding_; | |
| 139 | |
| 140 // This row's model and model index. | |
| 141 AutocompleteResultViewModel* model_; | |
| 142 size_t model_index_; | |
| 143 | |
| 144 const gfx::Font normal_font_; | |
| 145 const gfx::Font bold_font_; | |
| 146 | |
| 147 // Width of the ellipsis in the normal font. | |
| 148 int ellipsis_width_; | |
| 149 | |
| 150 // A context used for mirroring regions. | |
| 151 class MirroringContext; | |
| 152 scoped_ptr<MirroringContext> mirroring_context_; | |
| 153 | |
| 154 AutocompleteMatch match_; | |
| 155 | |
| 156 gfx::Rect text_bounds_; | |
| 157 gfx::Rect icon_bounds_; | |
| 158 | |
| 159 gfx::Rect keyword_text_bounds_; | |
| 160 scoped_ptr<views::ImageView> keyword_icon_; | |
| 161 | |
| 162 scoped_ptr<ui::SlideAnimation> animation_; | |
| 163 | |
| 164 DISALLOW_COPY_AND_ASSIGN(AutocompleteResultView); | |
| 165 }; | |
| 166 | |
| 167 #endif // CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_RESULT_VIEW_H_ | |
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