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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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