widget/SharedWidgetUtils.cpp
author Andreas Tolfsen <ato@sny.no>
Thu, 11 Oct 2018 16:40:36 +0000
changeset 443621 9ca2c179e63e292808918158eb778b16bf18e67f
parent 282388 e22b3043887ed36bf2c634c2924a7c8d39d226b1
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
bug 1492499: marionette: warn on TimedPromise bailing; r=automatedtester We often use TimedPromise to ensure Marionette does not unexpectedly block on a promise that, for whatever reason, does not resolve. It can however be useful to be alerted when they don't, as it quite often means there is an underlying problem. Depends on D8406 Differential Revision: https://phabricator.services.mozilla.com/D8407

/* -*- 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