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Diffstat (limited to 'widget/SharedWidgetUtils.cpp')
| -rw-r--r-- | widget/SharedWidgetUtils.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/widget/SharedWidgetUtils.cpp b/widget/SharedWidgetUtils.cpp new file mode 100644 index 000000000..ab3513fc5 --- /dev/null +++ b/widget/SharedWidgetUtils.cpp @@ -0,0 +1,178 @@ +/* -*- 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" +#include "nsPIDOMWindow.h" + +namespace mozilla { +namespace widget { + +// static +void +WidgetUtils::Shutdown() +{ + WidgetKeyboardEvent::Shutdown(); +} + +// static +already_AddRefed<nsIWidget> +WidgetUtils::DOMWindowToWidget(nsPIDOMWindowOuter* aDOMWindow) +{ + nsCOMPtr<nsIWidget> widget; + nsCOMPtr<nsPIDOMWindowOuter> window = 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; + } +} + +} // namespace widget +} // namespace mozilla |