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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // These classes define a text field widget that can be used in the views UI | 5 #ifndef VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_ |
6 // toolkit. | 6 #define VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_ |
7 | |
8 #ifndef VIEWS_CONTROLS_TEXT_FIELD_H_ | |
9 #define VIEWS_CONTROLS_TEXT_FIELD_H_ | |
10 | 7 |
11 #include <string> | 8 #include <string> |
12 | 9 |
13 #include "app/gfx/font.h" | 10 #include "app/gfx/font.h" |
14 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
15 #include "views/view.h" | 12 #include "views/view.h" |
16 #include "third_party/skia/include/core/SkColor.h" | 13 #include "third_party/skia/include/core/SkColor.h" |
17 | 14 |
18 namespace views { | 15 namespace views { |
19 | 16 |
20 class HWNDView; | 17 class HWNDView; |
21 | 18 |
22 // This class implements a ChromeView that wraps a native text (edit) field. | 19 // This class implements a ChromeView that wraps a native text (edit) field. |
23 class TextField : public View { | 20 class Textfield : public View { |
24 public: | 21 public: |
25 // Keystroke provides a platform-dependent way to send keystroke events. | 22 // Keystroke provides a platform-dependent way to send keystroke events. |
26 // Cross-platform code can use IsKeystrokeEnter/Escape to check for these | 23 // Cross-platform code can use IsKeystrokeEnter/Escape to check for these |
27 // two common key events. | 24 // two common key events. |
28 // TODO(brettw) this should be cleaned up to be more cross-platform. | 25 // TODO(brettw) this should be cleaned up to be more cross-platform. |
29 #if defined(OS_WIN) | 26 #if defined(OS_WIN) |
30 struct Keystroke { | 27 struct Keystroke { |
31 Keystroke(unsigned int m, | 28 Keystroke(unsigned int m, |
32 wchar_t k, | 29 wchar_t k, |
33 int r, | 30 int r, |
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47 struct Keystroke { | 44 struct Keystroke { |
48 // TODO(brettw) figure out what this should be on GTK. | 45 // TODO(brettw) figure out what this should be on GTK. |
49 }; | 46 }; |
50 #endif | 47 #endif |
51 | 48 |
52 // This defines the callback interface for other code to be notified of | 49 // This defines the callback interface for other code to be notified of |
53 // changes in the state of a text field. | 50 // changes in the state of a text field. |
54 class Controller { | 51 class Controller { |
55 public: | 52 public: |
56 // This method is called whenever the text in the field changes. | 53 // This method is called whenever the text in the field changes. |
57 virtual void ContentsChanged(TextField* sender, | 54 virtual void ContentsChanged(Textfield* sender, |
58 const std::wstring& new_contents) = 0; | 55 const std::wstring& new_contents) = 0; |
59 | 56 |
60 // This method is called to get notified about keystrokes in the edit. | 57 // This method is called to get notified about keystrokes in the edit. |
61 // This method returns true if the message was handled and should not be | 58 // This method returns true if the message was handled and should not be |
62 // processed further. If it returns false the processing continues. | 59 // processed further. If it returns false the processing continues. |
63 virtual bool HandleKeystroke(TextField* sender, | 60 virtual bool HandleKeystroke(Textfield* sender, |
64 const TextField::Keystroke& keystroke) = 0; | 61 const Textfield::Keystroke& keystroke) = 0; |
65 }; | 62 }; |
66 | 63 |
67 enum StyleFlags { | 64 enum StyleFlags { |
68 STYLE_DEFAULT = 0, | 65 STYLE_DEFAULT = 0, |
69 STYLE_PASSWORD = 1<<0, | 66 STYLE_PASSWORD = 1<<0, |
70 STYLE_MULTILINE = 1<<1, | 67 STYLE_MULTILINE = 1<<1, |
71 STYLE_LOWERCASE = 1<<2 | 68 STYLE_LOWERCASE = 1<<2 |
72 }; | 69 }; |
73 | 70 |
74 TextField() | 71 Textfield() |
75 : | 72 : |
76 #if defined(OS_WIN) | 73 #if defined(OS_WIN) |
77 native_view_(NULL), | 74 native_view_(NULL), |
78 #endif | 75 #endif |
79 edit_(NULL), | 76 edit_(NULL), |
80 controller_(NULL), | 77 controller_(NULL), |
81 style_(STYLE_DEFAULT), | 78 style_(STYLE_DEFAULT), |
82 read_only_(false), | 79 read_only_(false), |
83 default_width_in_chars_(0), | 80 default_width_in_chars_(0), |
84 draw_border_(true), | 81 draw_border_(true), |
85 use_default_background_color_(true), | 82 use_default_background_color_(true), |
86 num_lines_(1) { | 83 num_lines_(1) { |
87 SetFocusable(true); | 84 SetFocusable(true); |
88 } | 85 } |
89 explicit TextField(StyleFlags style) | 86 explicit Textfield(StyleFlags style) |
90 : | 87 : |
91 #if defined(OS_WIN) | 88 #if defined(OS_WIN) |
92 native_view_(NULL), | 89 native_view_(NULL), |
93 #endif | 90 #endif |
94 edit_(NULL), | 91 edit_(NULL), |
95 controller_(NULL), | 92 controller_(NULL), |
96 style_(style), | 93 style_(style), |
97 read_only_(false), | 94 read_only_(false), |
98 default_width_in_chars_(0), | 95 default_width_in_chars_(0), |
99 draw_border_(true), | 96 draw_border_(true), |
100 use_default_background_color_(true), | 97 use_default_background_color_(true), |
101 num_lines_(1) { | 98 num_lines_(1) { |
102 SetFocusable(true); | 99 SetFocusable(true); |
103 } | 100 } |
104 virtual ~TextField(); | 101 virtual ~Textfield(); |
105 | 102 |
106 void ViewHierarchyChanged(bool is_add, View* parent, View* child); | 103 void ViewHierarchyChanged(bool is_add, View* parent, View* child); |
107 | 104 |
108 // Overridden for layout purposes | 105 // Overridden for layout purposes |
109 virtual void Layout(); | 106 virtual void Layout(); |
110 virtual gfx::Size GetPreferredSize(); | 107 virtual gfx::Size GetPreferredSize(); |
111 | 108 |
112 // Controller accessors | 109 // Controller accessors |
113 void SetController(Controller* controller); | 110 void SetController(Controller* controller); |
114 Controller* GetController() const; | 111 Controller* GetController() const; |
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150 void ClearSelection() const; | 147 void ClearSelection() const; |
151 | 148 |
152 StyleFlags GetStyle() const { return style_; } | 149 StyleFlags GetStyle() const { return style_; } |
153 | 150 |
154 void SetBackgroundColor(SkColor color); | 151 void SetBackgroundColor(SkColor color); |
155 void SetDefaultBackgroundColor(); | 152 void SetDefaultBackgroundColor(); |
156 | 153 |
157 // Set the font. | 154 // Set the font. |
158 void SetFont(const gfx::Font& font); | 155 void SetFont(const gfx::Font& font); |
159 | 156 |
160 // Return the font used by this TextField. | 157 // Return the font used by this Textfield. |
161 gfx::Font GetFont() const; | 158 gfx::Font GetFont() const; |
162 | 159 |
163 // Sets the left and right margin (in pixels) within the text box. On Windows | 160 // Sets the left and right margin (in pixels) within the text box. On Windows |
164 // this is accomplished by packing the left and right margin into a single | 161 // this is accomplished by packing the left and right margin into a single |
165 // 32 bit number, so the left and right margins are effectively 16 bits. | 162 // 32 bit number, so the left and right margins are effectively 16 bits. |
166 bool SetHorizontalMargins(int left, int right); | 163 bool SetHorizontalMargins(int left, int right); |
167 | 164 |
168 // Should only be called on a multi-line text field. Sets how many lines of | 165 // Should only be called on a multi-line text field. Sets how many lines of |
169 // text can be displayed at once by this text field. | 166 // text can be displayed at once by this text field. |
170 void SetHeightInLines(int num_lines); | 167 void SetHeightInLines(int num_lines); |
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213 // This inherits from the native text field. | 210 // This inherits from the native text field. |
214 Edit* edit_; | 211 Edit* edit_; |
215 | 212 |
216 // This is the current listener for events from this control. | 213 // This is the current listener for events from this control. |
217 Controller* controller_; | 214 Controller* controller_; |
218 | 215 |
219 StyleFlags style_; | 216 StyleFlags style_; |
220 | 217 |
221 gfx::Font font_; | 218 gfx::Font font_; |
222 | 219 |
223 // NOTE: this is temporary until we rewrite TextField to always work whether | 220 // NOTE: this is temporary until we rewrite Textfield to always work whether |
224 // there is an HWND or not. | 221 // there is an HWND or not. |
225 // Used if the HWND hasn't been created yet. | 222 // Used if the HWND hasn't been created yet. |
226 std::wstring text_; | 223 std::wstring text_; |
227 | 224 |
228 bool read_only_; | 225 bool read_only_; |
229 | 226 |
230 // The default number of average characters for the width of this text field. | 227 // The default number of average characters for the width of this text field. |
231 // This will be reported as the "desired size". Defaults to 0. | 228 // This will be reported as the "desired size". Defaults to 0. |
232 int default_width_in_chars_; | 229 int default_width_in_chars_; |
233 | 230 |
234 // Whether the border is drawn. | 231 // Whether the border is drawn. |
235 bool draw_border_; | 232 bool draw_border_; |
236 | 233 |
237 SkColor background_color_; | 234 SkColor background_color_; |
238 | 235 |
239 bool use_default_background_color_; | 236 bool use_default_background_color_; |
240 | 237 |
241 // The number of lines of text this textfield displays at once. | 238 // The number of lines of text this Textfield displays at once. |
242 int num_lines_; | 239 int num_lines_; |
243 | 240 |
244 protected: | 241 protected: |
245 // Calculates the insets for the text field. | 242 // Calculates the insets for the text field. |
246 void CalculateInsets(gfx::Insets* insets); | 243 void CalculateInsets(gfx::Insets* insets); |
247 | 244 |
248 DISALLOW_COPY_AND_ASSIGN(TextField); | 245 DISALLOW_COPY_AND_ASSIGN(Textfield); |
249 }; | 246 }; |
250 | 247 |
251 } // namespace views | 248 } // namespace views |
252 | 249 |
253 #endif // VIEWS_CONTROLS_TEXT_FIELD_H_ | 250 #endif // VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_ |
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