gecko/widget/shared/WidgetUtils.cpp

242 lines
8.6 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WidgetUtils.h"
#include "mozilla/TextEvents.h"
#include "nsIBaseWindow.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShell.h"
#include "nsIInterfaceRequestorUtils.h"
namespace mozilla {
namespace widget {
//static
already_AddRefed<nsIWidget>
WidgetUtils::DOMWindowToWidget(nsIDOMWindow *aDOMWindow)
{
nsCOMPtr<nsIWidget> widget;
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aDOMWindow);
if (window) {
nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(window->GetDocShell()));
while (!widget && baseWin) {
baseWin->GetParentWidget(getter_AddRefs(widget));
if (!widget) {
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(baseWin));
if (!docShellAsItem)
return nullptr;
nsCOMPtr<nsIDocShellTreeItem> parent;
docShellAsItem->GetParent(getter_AddRefs(parent));
window = do_GetInterface(parent);
if (!window)
return nullptr;
baseWin = do_QueryInterface(window->GetDocShell());
}
}
}
return widget.forget();
}
// static
uint32_t
WidgetUtils::ComputeKeyCodeFromChar(uint32_t aCharCode)
{
if (aCharCode >= 'A' && aCharCode <= 'Z') {
return aCharCode - 'A' + NS_VK_A;
}
if (aCharCode >= 'a' && aCharCode <= 'z') {
return aCharCode - 'a' + NS_VK_A;
}
if (aCharCode >= '0' && aCharCode <= '9') {
return aCharCode - '0' + NS_VK_0;
}
switch (aCharCode) {
case ' ': return NS_VK_SPACE;
case '\t': return NS_VK_TAB;
case ':': return NS_VK_COLON;
case ';': return NS_VK_SEMICOLON;
case '<': return NS_VK_LESS_THAN;
case '=': return NS_VK_EQUALS;
case '>': return NS_VK_GREATER_THAN;
case '?': return NS_VK_QUESTION_MARK;
case '@': return NS_VK_AT;
case '^': return NS_VK_CIRCUMFLEX;
case '!': return NS_VK_EXCLAMATION;
case '"': return NS_VK_DOUBLE_QUOTE;
case '#': return NS_VK_HASH;
case '$': return NS_VK_DOLLAR;
case '%': return NS_VK_PERCENT;
case '&': return NS_VK_AMPERSAND;
case '_': return NS_VK_UNDERSCORE;
case '(': return NS_VK_OPEN_PAREN;
case ')': return NS_VK_CLOSE_PAREN;
case '*': return NS_VK_ASTERISK;
case '+': return NS_VK_PLUS;
case '|': return NS_VK_PIPE;
case '-': return NS_VK_HYPHEN_MINUS;
case '{': return NS_VK_OPEN_CURLY_BRACKET;
case '}': return NS_VK_CLOSE_CURLY_BRACKET;
case '~': return NS_VK_TILDE;
case ',': return NS_VK_COMMA;
case '.': return NS_VK_PERIOD;
case '/': return NS_VK_SLASH;
case '`': return NS_VK_BACK_QUOTE;
case '[': return NS_VK_OPEN_BRACKET;
case '\\': return NS_VK_BACK_SLASH;
case ']': return NS_VK_CLOSE_BRACKET;
case '\'': return NS_VK_QUOTE;
}
return 0;
}
// static
void
WidgetUtils::GetLatinCharCodeForKeyCode(uint32_t aKeyCode,
bool aIsCapsLock,
uint32_t* aUnshiftedCharCode,
uint32_t* aShiftedCharCode)
{
MOZ_ASSERT(aUnshiftedCharCode && aShiftedCharCode,
"aUnshiftedCharCode and aShiftedCharCode must not be NULL");
if (aKeyCode >= NS_VK_A && aKeyCode <= NS_VK_Z) {
*aUnshiftedCharCode = *aShiftedCharCode = aKeyCode;
if (aIsCapsLock) {
*aShiftedCharCode += 0x20;
} else {
*aUnshiftedCharCode += 0x20;
}
return;
}
// aShiftedCharCode must be zero for non-alphabet keys.
*aShiftedCharCode = 0;
if (aKeyCode >= NS_VK_0 && aKeyCode <= NS_VK_9) {
*aUnshiftedCharCode = aKeyCode;
return;
}
switch (aKeyCode) {
case NS_VK_SPACE: *aUnshiftedCharCode = ' '; break;
case NS_VK_COLON: *aUnshiftedCharCode = ':'; break;
case NS_VK_SEMICOLON: *aUnshiftedCharCode = ';'; break;
case NS_VK_LESS_THAN: *aUnshiftedCharCode = '<'; break;
case NS_VK_EQUALS: *aUnshiftedCharCode = '='; break;
case NS_VK_GREATER_THAN: *aUnshiftedCharCode = '>'; break;
case NS_VK_QUESTION_MARK: *aUnshiftedCharCode = '?'; break;
case NS_VK_AT: *aUnshiftedCharCode = '@'; break;
case NS_VK_CIRCUMFLEX: *aUnshiftedCharCode = '^'; break;
case NS_VK_EXCLAMATION: *aUnshiftedCharCode = '!'; break;
case NS_VK_DOUBLE_QUOTE: *aUnshiftedCharCode = '"'; break;
case NS_VK_HASH: *aUnshiftedCharCode = '#'; break;
case NS_VK_DOLLAR: *aUnshiftedCharCode = '$'; break;
case NS_VK_PERCENT: *aUnshiftedCharCode = '%'; break;
case NS_VK_AMPERSAND: *aUnshiftedCharCode = '&'; break;
case NS_VK_UNDERSCORE: *aUnshiftedCharCode = '_'; break;
case NS_VK_OPEN_PAREN: *aUnshiftedCharCode = '('; break;
case NS_VK_CLOSE_PAREN: *aUnshiftedCharCode = ')'; break;
case NS_VK_ASTERISK: *aUnshiftedCharCode = '*'; break;
case NS_VK_PLUS: *aUnshiftedCharCode = '+'; break;
case NS_VK_PIPE: *aUnshiftedCharCode = '|'; break;
case NS_VK_HYPHEN_MINUS: *aUnshiftedCharCode = '-'; break;
case NS_VK_OPEN_CURLY_BRACKET: *aUnshiftedCharCode = '{'; break;
case NS_VK_CLOSE_CURLY_BRACKET: *aUnshiftedCharCode = '}'; break;
case NS_VK_TILDE: *aUnshiftedCharCode = '~'; break;
case NS_VK_COMMA: *aUnshiftedCharCode = ','; break;
case NS_VK_PERIOD: *aUnshiftedCharCode = '.'; break;
case NS_VK_SLASH: *aUnshiftedCharCode = '/'; break;
case NS_VK_BACK_QUOTE: *aUnshiftedCharCode = '`'; break;
case NS_VK_OPEN_BRACKET: *aUnshiftedCharCode = '['; break;
case NS_VK_BACK_SLASH: *aUnshiftedCharCode = '\\'; break;
case NS_VK_CLOSE_BRACKET: *aUnshiftedCharCode = ']'; break;
case NS_VK_QUOTE: *aUnshiftedCharCode = '\''; break;
default: *aUnshiftedCharCode = 0; break;
}
}
// static
KeyNameIndex
WidgetUtils::GetDeadKeyNameIndex(PRUnichar aChar)
{
switch (aChar) {
case '`':
case 0x02CB: // MODIFIER LETTER GRAVE ACCENT
case 0x0300: // COMBINING GRAVE ACCENT
return KEY_NAME_INDEX_DeadGrave;
case '\'':
case 0x00B4: // ACUTE ACCENT
case 0x02B9: // MODIFIER LETTER PRIME
case 0x02CA: // MODIFIER LETTER ACUTE ACCENT
case 0x0301: // COMBINING ACUTE ACCENT
case 0x0384: // GREEK TONOS
return KEY_NAME_INDEX_DeadAcute;
case '^':
case 0x02C6: // MODIFIER LETTER CIRCUMFLEX ACCENT
case 0x0302: // COMBINING CIRCUMFLEX ACCENT
return KEY_NAME_INDEX_DeadCircumflex;
case '~':
case 0x02DC: // SMALL TILDE
case 0x0303: // COMBINING TILDE
return KEY_NAME_INDEX_DeadTilde;
case 0x00AF: // MACRON
case 0x02C9: // MODIFIER LETTER MACRON
case 0x0304: // COMBINING MACRON
return KEY_NAME_INDEX_DeadMacron;
case 0x02D8: // BRAVE
case 0xA67C: // COMBINING CYRILLIC KAVYKA
case 0x0306: // COMBINING BRAVE
return KEY_NAME_INDEX_DeadBreve;
case 0x02D9: // DOT ABOVE
case 0x0307: // COMBINING DOT ABOVE
return KEY_NAME_INDEX_DeadAboveDot;
case 0x00A8: // DIAERESIS
case 0x0308: // COMBINING DIAERESIS
return KEY_NAME_INDEX_DeadUmlaut;
case 0x00B0: // DEGREE SIGN
case 0x02DA: // RING ABOVE
case 0x030A: // COMBINING RING ABOVE
return KEY_NAME_INDEX_DeadAboveRing;
case '"':
case 0x02BA: // MODIFIER LETTER DOUBLE PRIME
case 0x02DD: // DOUBLE ACUTE ACCENT
case 0x030B: // COMBINING DOUBLE ACUTE ACCENT
return KEY_NAME_INDEX_DeadDoubleacute;
case 0x02C7: // CARON
case 0x030C: // COMBINING CARON
return KEY_NAME_INDEX_DeadCaron;
case 0x00B8: // CEDILLA
case 0x0327: // COMBINING CEDILLA
return KEY_NAME_INDEX_DeadCedilla;
case 0x02DB: // OGONEK
case 0x0328: // COMBINING OGONEK
return KEY_NAME_INDEX_DeadOgonek;
case 0x0345: // COMBINING GREEK YPOGEGRAMMENI
case 0x037A: // GREEK YPOGEGRAMMENI
case 0x0399: // GREEK CAPITAL LETTER IOTA
return KEY_NAME_INDEX_DeadIota;
case 0x3099: // COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
case 0x309B: // KATAKANA-HIRAGANA VOICED SOUND MARK
return KEY_NAME_INDEX_DeadVoicedSound;
case 0x309A: // COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
case 0x309C: // KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
return KEY_NAME_INDEX_DeadSemivoicedSound;
default:
return KEY_NAME_INDEX_Unidentified;
}
}
} // namespace widget
} // namespace mozilla