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| 1 // Copyright 2014 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 #include "ui/ozone/platform/caca/caca_event_source.h" | |
| 6 | |
| 7 #include <caca.h> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/message_loop/message_loop.h" | |
| 11 #include "ui/events/event.h" | |
| 12 #include "ui/events/keycodes/keyboard_codes.h" | |
| 13 #include "ui/ozone/platform/caca/caca_window.h" | |
| 14 | |
| 15 namespace ui { | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 ui::KeyboardCode GetKeyboardCode(const caca_event_t& event) { | |
| 20 // List of special mappings the Caca provides. | |
| 21 static const ui::KeyboardCode kCacaKeyMap[] = { | |
| 22 ui::VKEY_UNKNOWN, | |
| 23 ui::VKEY_A, | |
| 24 ui::VKEY_B, | |
| 25 ui::VKEY_C, | |
| 26 ui::VKEY_D, | |
| 27 ui::VKEY_E, | |
| 28 ui::VKEY_F, | |
| 29 ui::VKEY_G, | |
| 30 ui::VKEY_BACK, | |
| 31 ui::VKEY_TAB, | |
| 32 ui::VKEY_J, | |
| 33 ui::VKEY_K, | |
| 34 ui::VKEY_L, | |
| 35 ui::VKEY_RETURN, | |
| 36 ui::VKEY_N, | |
| 37 ui::VKEY_O, | |
| 38 ui::VKEY_P, | |
| 39 ui::VKEY_Q, | |
| 40 ui::VKEY_R, | |
| 41 ui::VKEY_PAUSE, | |
| 42 ui::VKEY_T, | |
| 43 ui::VKEY_U, | |
| 44 ui::VKEY_V, | |
| 45 ui::VKEY_W, | |
| 46 ui::VKEY_X, | |
| 47 ui::VKEY_Y, | |
| 48 ui::VKEY_Z, | |
| 49 ui::VKEY_ESCAPE, | |
| 50 ui::VKEY_DELETE, | |
| 51 ui::VKEY_UP, | |
| 52 ui::VKEY_DOWN, | |
| 53 ui::VKEY_LEFT, | |
| 54 ui::VKEY_RIGHT, | |
| 55 ui::VKEY_INSERT, | |
| 56 ui::VKEY_HOME, | |
| 57 ui::VKEY_END, | |
| 58 ui::VKEY_PRIOR, | |
| 59 ui::VKEY_NEXT, | |
| 60 ui::VKEY_F1, | |
| 61 ui::VKEY_F2, | |
| 62 ui::VKEY_F3, | |
| 63 ui::VKEY_F4, | |
| 64 ui::VKEY_F5, | |
| 65 ui::VKEY_F6, | |
| 66 ui::VKEY_F7, | |
| 67 ui::VKEY_F8, | |
| 68 ui::VKEY_F9, | |
| 69 ui::VKEY_F10, | |
| 70 ui::VKEY_F11, | |
| 71 ui::VKEY_F12, | |
| 72 }; | |
| 73 | |
| 74 int key_code = caca_get_event_key_ch(&event); | |
| 75 if (key_code >= 'a' && key_code <= 'z') | |
| 76 return static_cast<ui::KeyboardCode>(key_code - ('a' - 'A')); | |
| 77 if (key_code >= '0' && key_code <= 'Z') | |
| 78 return static_cast<ui::KeyboardCode>(key_code); | |
| 79 if (static_cast<unsigned int>(key_code) < arraysize(kCacaKeyMap)) | |
| 80 return kCacaKeyMap[key_code]; | |
| 81 | |
| 82 return ui::VKEY_UNKNOWN; | |
| 83 } | |
| 84 | |
| 85 int ModifierFromKey(const caca_event_t& event) { | |
| 86 int key_code = caca_get_event_key_ch(&event); | |
| 87 if (key_code >= 'A' && key_code <= 'Z') | |
| 88 return ui::EF_SHIFT_DOWN; | |
| 89 if ((key_code >= CACA_KEY_CTRL_A && key_code <= CACA_KEY_CTRL_G) || | |
| 90 (key_code >= CACA_KEY_CTRL_J && key_code <= CACA_KEY_CTRL_L) || | |
| 91 (key_code >= CACA_KEY_CTRL_N && key_code <= CACA_KEY_CTRL_R) || | |
| 92 (key_code >= CACA_KEY_CTRL_T && key_code <= CACA_KEY_CTRL_Z)) | |
| 93 return ui::EF_CONTROL_DOWN; | |
| 94 | |
| 95 return ui::EF_NONE; | |
| 96 } | |
| 97 | |
| 98 int ModifierFromButton(const caca_event_t& event) { | |
| 99 switch (caca_get_event_mouse_button(&event)) { | |
| 100 case 1: | |
| 101 return ui::EF_LEFT_MOUSE_BUTTON; | |
| 102 case 2: | |
| 103 return ui::EF_RIGHT_MOUSE_BUTTON; | |
| 104 case 3: | |
| 105 return ui::EF_MIDDLE_MOUSE_BUTTON; | |
| 106 } | |
| 107 return 0; | |
| 108 } | |
| 109 | |
| 110 // Translate coordinates to bitmap coordinates. | |
| 111 gfx::PointF TranslateLocation(const gfx::PointF& location, CacaWindow* window) { | |
| 112 gfx::Size physical_size = window->physical_size(); | |
| 113 gfx::Size bitmap_size = window->bitmap_size(); | |
| 114 return gfx::PointF( | |
| 115 location.x() * bitmap_size.width() / physical_size.width(), | |
| 116 location.y() * bitmap_size.height() / physical_size.height()); | |
| 117 } | |
| 118 | |
| 119 ui::EventType GetEventTypeFromNative(const caca_event_t& event) { | |
| 120 switch (caca_get_event_type(&event)) { | |
| 121 case CACA_EVENT_KEY_PRESS: | |
| 122 return ui::ET_KEY_PRESSED; | |
| 123 case CACA_EVENT_KEY_RELEASE: | |
| 124 return ui::ET_KEY_RELEASED; | |
| 125 case CACA_EVENT_MOUSE_PRESS: | |
| 126 return ui::ET_MOUSE_PRESSED; | |
| 127 case CACA_EVENT_MOUSE_RELEASE: | |
| 128 return ui::ET_MOUSE_RELEASED; | |
| 129 case CACA_EVENT_MOUSE_MOTION: | |
| 130 return ui::ET_MOUSE_MOVED; | |
| 131 default: | |
| 132 return ui::ET_UNKNOWN; | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 } // namespace | |
| 137 | |
| 138 CacaEventSource::CacaEventSource() : modifier_flags_(0) { | |
| 139 } | |
| 140 | |
| 141 CacaEventSource::~CacaEventSource() { | |
| 142 } | |
| 143 | |
| 144 void CacaEventSource::TryProcessingEvent(CacaWindow* window) { | |
| 145 if (!window->display()) | |
| 146 return; | |
| 147 | |
| 148 caca_event_t event; | |
| 149 int event_mask = CACA_EVENT_KEY_PRESS | CACA_EVENT_KEY_RELEASE | | |
| 150 CACA_EVENT_MOUSE_PRESS | CACA_EVENT_MOUSE_RELEASE | | |
| 151 CACA_EVENT_MOUSE_MOTION | CACA_EVENT_RESIZE | | |
| 152 CACA_EVENT_QUIT; | |
| 153 | |
| 154 if (!caca_get_event(window->display(), event_mask, &event, 0)) | |
| 155 return; | |
| 156 | |
| 157 switch (caca_get_event_type(&event)) { | |
| 158 case CACA_EVENT_KEY_PRESS: | |
| 159 case CACA_EVENT_KEY_RELEASE: | |
| 160 case CACA_EVENT_MOUSE_PRESS: | |
| 161 case CACA_EVENT_MOUSE_RELEASE: | |
| 162 case CACA_EVENT_MOUSE_MOTION: | |
| 163 OnInputEvent(&event, window); | |
| 164 break; | |
| 165 case CACA_EVENT_RESIZE: | |
| 166 window->OnCacaResize(); | |
| 167 break; | |
| 168 case CACA_EVENT_QUIT: | |
| 169 window->OnCacaQuit(); | |
| 170 break; | |
| 171 default: | |
| 172 NOTIMPLEMENTED(); | |
| 173 } | |
| 174 } | |
| 175 | |
| 176 void CacaEventSource::OnInputEvent(caca_event_t* event, CacaWindow* window) { | |
| 177 ui::EventType type = GetEventTypeFromNative(*event); | |
| 178 bool pressed = type == ui::ET_KEY_PRESSED || type == ui::ET_MOUSE_PRESSED; | |
| 179 | |
| 180 switch (type) { | |
| 181 case ui::ET_KEY_PRESSED: | |
| 182 case ui::ET_KEY_RELEASED: { | |
| 183 if (pressed) | |
| 184 modifier_flags_ |= ModifierFromKey(*event); | |
| 185 else | |
| 186 modifier_flags_ &= ~ModifierFromKey(*event); | |
| 187 | |
| 188 ui::KeyEvent key_event( | |
| 189 type, GetKeyboardCode(*event), modifier_flags_); | |
| 190 window->OnCacaEvent(&key_event); | |
| 191 break; | |
| 192 } | |
| 193 case ui::ET_MOUSE_MOVED: | |
| 194 last_cursor_location_.SetPoint(caca_get_event_mouse_x(event), | |
| 195 caca_get_event_mouse_y(event)); | |
| 196 // Update cursor location. | |
| 197 caca_gotoxy(caca_get_canvas(window->display()), | |
| 198 last_cursor_location_.x(), | |
| 199 last_cursor_location_.y()); | |
| 200 | |
| 201 // fallthrough | |
| 202 case ui::ET_MOUSE_PRESSED: | |
| 203 case ui::ET_MOUSE_RELEASED: { | |
| 204 int flags = 0; | |
| 205 int changed_flags = 0; | |
| 206 if (type != ui::ET_MOUSE_MOVED) { | |
| 207 if (pressed) { | |
| 208 changed_flags = ModifierFromButton(*event); | |
| 209 modifier_flags_ |= changed_flags; | |
| 210 } else { | |
| 211 modifier_flags_ &= ~changed_flags; | |
| 212 } | |
| 213 // On release the button pressed is removed from |modifier_flags_|, | |
| 214 // but sending the event needs it set. | |
| 215 flags = modifier_flags_ | changed_flags; | |
| 216 } | |
| 217 gfx::PointF location = TranslateLocation(last_cursor_location_, window); | |
| 218 ui::MouseEvent mouse_event( | |
| 219 type, location, location, flags, changed_flags); | |
| 220 window->OnCacaEvent(&mouse_event); | |
| 221 break; | |
| 222 } | |
| 223 default: | |
| 224 NOTIMPLEMENTED(); | |
| 225 break; | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 } // namespace ui | |
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