1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "WidgetUtils.h"
8
9 #include "mozilla/TextEvents.h"
10
11 #include "nsIBaseWindow.h"
12 #include "nsIDocShellTreeItem.h"
13 #include "nsIDocShell.h"
14 #include "nsIInterfaceRequestorUtils.h"
15 #include "nsPIDOMWindow.h"
16
17 namespace mozilla {
18 namespace widget {
19
20 // static
Shutdown()21 void WidgetUtils::Shutdown() {
22 WidgetKeyboardEvent::Shutdown();
23 InternalEditorInputEvent::Shutdown();
24 }
25
26 // static
DOMWindowToWidget(nsPIDOMWindowOuter * aDOMWindow)27 already_AddRefed<nsIWidget> WidgetUtils::DOMWindowToWidget(
28 nsPIDOMWindowOuter* aDOMWindow) {
29 nsCOMPtr<nsIWidget> widget;
30 nsCOMPtr<nsPIDOMWindowOuter> window = aDOMWindow;
31
32 if (window) {
33 nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(window->GetDocShell()));
34
35 while (!widget && baseWin) {
36 baseWin->GetParentWidget(getter_AddRefs(widget));
37 if (!widget) {
38 nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(
39 do_QueryInterface(baseWin));
40 if (!docShellAsItem) return nullptr;
41
42 nsCOMPtr<nsIDocShellTreeItem> parent;
43 docShellAsItem->GetInProcessParent(getter_AddRefs(parent));
44
45 window = do_GetInterface(parent);
46 if (!window) return nullptr;
47
48 baseWin = do_QueryInterface(window->GetDocShell());
49 }
50 }
51 }
52
53 return widget.forget();
54 }
55
56 // static
ComputeKeyCodeFromChar(uint32_t aCharCode)57 uint32_t WidgetUtils::ComputeKeyCodeFromChar(uint32_t aCharCode) {
58 if (aCharCode >= 'A' && aCharCode <= 'Z') {
59 return aCharCode - 'A' + NS_VK_A;
60 }
61 if (aCharCode >= 'a' && aCharCode <= 'z') {
62 return aCharCode - 'a' + NS_VK_A;
63 }
64 if (aCharCode >= '0' && aCharCode <= '9') {
65 return aCharCode - '0' + NS_VK_0;
66 }
67 switch (aCharCode) {
68 case ' ':
69 return NS_VK_SPACE;
70 case '\t':
71 return NS_VK_TAB;
72 case ':':
73 return NS_VK_COLON;
74 case ';':
75 return NS_VK_SEMICOLON;
76 case '<':
77 return NS_VK_LESS_THAN;
78 case '=':
79 return NS_VK_EQUALS;
80 case '>':
81 return NS_VK_GREATER_THAN;
82 case '?':
83 return NS_VK_QUESTION_MARK;
84 case '@':
85 return NS_VK_AT;
86 case '^':
87 return NS_VK_CIRCUMFLEX;
88 case '!':
89 return NS_VK_EXCLAMATION;
90 case '"':
91 return NS_VK_DOUBLE_QUOTE;
92 case '#':
93 return NS_VK_HASH;
94 case '$':
95 return NS_VK_DOLLAR;
96 case '%':
97 return NS_VK_PERCENT;
98 case '&':
99 return NS_VK_AMPERSAND;
100 case '_':
101 return NS_VK_UNDERSCORE;
102 case '(':
103 return NS_VK_OPEN_PAREN;
104 case ')':
105 return NS_VK_CLOSE_PAREN;
106 case '*':
107 return NS_VK_ASTERISK;
108 case '+':
109 return NS_VK_PLUS;
110 case '|':
111 return NS_VK_PIPE;
112 case '-':
113 return NS_VK_HYPHEN_MINUS;
114 case '{':
115 return NS_VK_OPEN_CURLY_BRACKET;
116 case '}':
117 return NS_VK_CLOSE_CURLY_BRACKET;
118 case '~':
119 return NS_VK_TILDE;
120 case ',':
121 return NS_VK_COMMA;
122 case '.':
123 return NS_VK_PERIOD;
124 case '/':
125 return NS_VK_SLASH;
126 case '`':
127 return NS_VK_BACK_QUOTE;
128 case '[':
129 return NS_VK_OPEN_BRACKET;
130 case '\\':
131 return NS_VK_BACK_SLASH;
132 case ']':
133 return NS_VK_CLOSE_BRACKET;
134 case '\'':
135 return NS_VK_QUOTE;
136 }
137 return 0;
138 }
139
140 // static
GetLatinCharCodeForKeyCode(uint32_t aKeyCode,bool aIsCapsLock,uint32_t * aUnshiftedCharCode,uint32_t * aShiftedCharCode)141 void WidgetUtils::GetLatinCharCodeForKeyCode(uint32_t aKeyCode,
142 bool aIsCapsLock,
143 uint32_t* aUnshiftedCharCode,
144 uint32_t* aShiftedCharCode) {
145 MOZ_ASSERT(aUnshiftedCharCode && aShiftedCharCode,
146 "aUnshiftedCharCode and aShiftedCharCode must not be NULL");
147
148 if (aKeyCode >= NS_VK_A && aKeyCode <= NS_VK_Z) {
149 *aUnshiftedCharCode = *aShiftedCharCode = aKeyCode;
150 if (aIsCapsLock) {
151 *aShiftedCharCode += 0x20;
152 } else {
153 *aUnshiftedCharCode += 0x20;
154 }
155 return;
156 }
157
158 // aShiftedCharCode must be zero for non-alphabet keys.
159 *aShiftedCharCode = 0;
160
161 if (aKeyCode >= NS_VK_0 && aKeyCode <= NS_VK_9) {
162 *aUnshiftedCharCode = aKeyCode;
163 return;
164 }
165
166 switch (aKeyCode) {
167 case NS_VK_SPACE:
168 *aUnshiftedCharCode = ' ';
169 break;
170 case NS_VK_COLON:
171 *aUnshiftedCharCode = ':';
172 break;
173 case NS_VK_SEMICOLON:
174 *aUnshiftedCharCode = ';';
175 break;
176 case NS_VK_LESS_THAN:
177 *aUnshiftedCharCode = '<';
178 break;
179 case NS_VK_EQUALS:
180 *aUnshiftedCharCode = '=';
181 break;
182 case NS_VK_GREATER_THAN:
183 *aUnshiftedCharCode = '>';
184 break;
185 case NS_VK_QUESTION_MARK:
186 *aUnshiftedCharCode = '?';
187 break;
188 case NS_VK_AT:
189 *aUnshiftedCharCode = '@';
190 break;
191 case NS_VK_CIRCUMFLEX:
192 *aUnshiftedCharCode = '^';
193 break;
194 case NS_VK_EXCLAMATION:
195 *aUnshiftedCharCode = '!';
196 break;
197 case NS_VK_DOUBLE_QUOTE:
198 *aUnshiftedCharCode = '"';
199 break;
200 case NS_VK_HASH:
201 *aUnshiftedCharCode = '#';
202 break;
203 case NS_VK_DOLLAR:
204 *aUnshiftedCharCode = '$';
205 break;
206 case NS_VK_PERCENT:
207 *aUnshiftedCharCode = '%';
208 break;
209 case NS_VK_AMPERSAND:
210 *aUnshiftedCharCode = '&';
211 break;
212 case NS_VK_UNDERSCORE:
213 *aUnshiftedCharCode = '_';
214 break;
215 case NS_VK_OPEN_PAREN:
216 *aUnshiftedCharCode = '(';
217 break;
218 case NS_VK_CLOSE_PAREN:
219 *aUnshiftedCharCode = ')';
220 break;
221 case NS_VK_ASTERISK:
222 *aUnshiftedCharCode = '*';
223 break;
224 case NS_VK_PLUS:
225 *aUnshiftedCharCode = '+';
226 break;
227 case NS_VK_PIPE:
228 *aUnshiftedCharCode = '|';
229 break;
230 case NS_VK_HYPHEN_MINUS:
231 *aUnshiftedCharCode = '-';
232 break;
233 case NS_VK_OPEN_CURLY_BRACKET:
234 *aUnshiftedCharCode = '{';
235 break;
236 case NS_VK_CLOSE_CURLY_BRACKET:
237 *aUnshiftedCharCode = '}';
238 break;
239 case NS_VK_TILDE:
240 *aUnshiftedCharCode = '~';
241 break;
242 case NS_VK_COMMA:
243 *aUnshiftedCharCode = ',';
244 break;
245 case NS_VK_PERIOD:
246 *aUnshiftedCharCode = '.';
247 break;
248 case NS_VK_SLASH:
249 *aUnshiftedCharCode = '/';
250 break;
251 case NS_VK_BACK_QUOTE:
252 *aUnshiftedCharCode = '`';
253 break;
254 case NS_VK_OPEN_BRACKET:
255 *aUnshiftedCharCode = '[';
256 break;
257 case NS_VK_BACK_SLASH:
258 *aUnshiftedCharCode = '\\';
259 break;
260 case NS_VK_CLOSE_BRACKET:
261 *aUnshiftedCharCode = ']';
262 break;
263 case NS_VK_QUOTE:
264 *aUnshiftedCharCode = '\'';
265 break;
266 default:
267 *aUnshiftedCharCode = 0;
268 break;
269 }
270 }
271
272 } // namespace widget
273 } // namespace mozilla
274