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gecko-dev/widget/cocoa/nsMenuItemX.mm

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/* -*- 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 "nsMenuItemX.h"
#include "nsMenuBarX.h"
#include "nsMenuX.h"
#include "nsMenuItemIconX.h"
#include "nsMenuUtilsX.h"
#include "nsObjCExceptions.h"
#include "nsCOMPtr.h"
#include "nsGkAtoms.h"
#include "nsGUIEvent.h"
#include "mozilla/dom/Element.h"
#include "nsIWidget.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMElement.h"
nsMenuItemX::nsMenuItemX()
{
mType = eRegularMenuItemType;
mNativeMenuItem = nil;
mMenuParent = nsnull;
mMenuGroupOwner = nsnull;
mIsChecked = false;
MOZ_COUNT_CTOR(nsMenuItemX);
}
nsMenuItemX::~nsMenuItemX()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Prevent the icon object from outliving us.
if (mIcon)
mIcon->Destroy();
// autorelease the native menu item so that anything else happening to this
// object happens before the native menu item actually dies
[mNativeMenuItem autorelease];
if (mContent)
mMenuGroupOwner->UnregisterForContentChanges(mContent);
if (mCommandContent)
mMenuGroupOwner->UnregisterForContentChanges(mCommandContent);
MOZ_COUNT_DTOR(nsMenuItemX);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
struct macKeyCodeData {
const char* str;
size_t strlength;
PRUint32 keycode;
};
static const macKeyCodeData gMacKeyCodes[] = {
#define KEYCODE_ENTRY(str, code) {#str, sizeof(#str) - 1, code}
KEYCODE_ENTRY(VK_CANCEL, 0x001B),
KEYCODE_ENTRY(VK_DELETE, NSBackspaceCharacter),
KEYCODE_ENTRY(VK_BACK, NSBackspaceCharacter),
KEYCODE_ENTRY(VK_BACK_SPACE, NSBackspaceCharacter),
KEYCODE_ENTRY(VK_TAB, NSTabCharacter),
KEYCODE_ENTRY(VK_CLEAR, NSClearLineFunctionKey),
KEYCODE_ENTRY(VK_RETURN, NSEnterCharacter),
KEYCODE_ENTRY(VK_ENTER, NSEnterCharacter),
KEYCODE_ENTRY(VK_SHIFT, 0),
KEYCODE_ENTRY(VK_CONTROL, 0),
KEYCODE_ENTRY(VK_ALT, 0),
KEYCODE_ENTRY(VK_PAUSE, NSPauseFunctionKey),
KEYCODE_ENTRY(VK_CAPS_LOCK, 0),
KEYCODE_ENTRY(VK_ESCAPE, 0),
KEYCODE_ENTRY(VK_SPACE, ' '),
KEYCODE_ENTRY(VK_PAGE_UP, NSPageUpFunctionKey),
KEYCODE_ENTRY(VK_PAGE_DOWN, NSPageDownFunctionKey),
KEYCODE_ENTRY(VK_END, NSEndFunctionKey),
KEYCODE_ENTRY(VK_HOME, NSHomeFunctionKey),
KEYCODE_ENTRY(VK_LEFT, NSLeftArrowFunctionKey),
KEYCODE_ENTRY(VK_UP, NSUpArrowFunctionKey),
KEYCODE_ENTRY(VK_RIGHT, NSRightArrowFunctionKey),
KEYCODE_ENTRY(VK_DOWN, NSDownArrowFunctionKey),
KEYCODE_ENTRY(VK_PRINTSCREEN, NSPrintScreenFunctionKey),
KEYCODE_ENTRY(VK_INSERT, NSInsertFunctionKey),
KEYCODE_ENTRY(VK_HELP, NSHelpFunctionKey),
KEYCODE_ENTRY(VK_0, '0'),
KEYCODE_ENTRY(VK_1, '1'),
KEYCODE_ENTRY(VK_2, '2'),
KEYCODE_ENTRY(VK_3, '3'),
KEYCODE_ENTRY(VK_4, '4'),
KEYCODE_ENTRY(VK_5, '5'),
KEYCODE_ENTRY(VK_6, '6'),
KEYCODE_ENTRY(VK_7, '7'),
KEYCODE_ENTRY(VK_8, '8'),
KEYCODE_ENTRY(VK_9, '9'),
KEYCODE_ENTRY(VK_SEMICOLON, ':'),
KEYCODE_ENTRY(VK_EQUALS, '='),
KEYCODE_ENTRY(VK_A, 'A'),
KEYCODE_ENTRY(VK_B, 'B'),
KEYCODE_ENTRY(VK_C, 'C'),
KEYCODE_ENTRY(VK_D, 'D'),
KEYCODE_ENTRY(VK_E, 'E'),
KEYCODE_ENTRY(VK_F, 'F'),
KEYCODE_ENTRY(VK_G, 'G'),
KEYCODE_ENTRY(VK_H, 'H'),
KEYCODE_ENTRY(VK_I, 'I'),
KEYCODE_ENTRY(VK_J, 'J'),
KEYCODE_ENTRY(VK_K, 'K'),
KEYCODE_ENTRY(VK_L, 'L'),
KEYCODE_ENTRY(VK_M, 'M'),
KEYCODE_ENTRY(VK_N, 'N'),
KEYCODE_ENTRY(VK_O, 'O'),
KEYCODE_ENTRY(VK_P, 'P'),
KEYCODE_ENTRY(VK_Q, 'Q'),
KEYCODE_ENTRY(VK_R, 'R'),
KEYCODE_ENTRY(VK_S, 'S'),
KEYCODE_ENTRY(VK_T, 'T'),
KEYCODE_ENTRY(VK_U, 'U'),
KEYCODE_ENTRY(VK_V, 'V'),
KEYCODE_ENTRY(VK_W, 'W'),
KEYCODE_ENTRY(VK_X, 'X'),
KEYCODE_ENTRY(VK_Y, 'Y'),
KEYCODE_ENTRY(VK_Z, 'Z'),
KEYCODE_ENTRY(VK_CONTEXT_MENU, NSMenuFunctionKey),
KEYCODE_ENTRY(VK_NUMPAD0, '0'),
KEYCODE_ENTRY(VK_NUMPAD1, '1'),
KEYCODE_ENTRY(VK_NUMPAD2, '2'),
KEYCODE_ENTRY(VK_NUMPAD3, '3'),
KEYCODE_ENTRY(VK_NUMPAD4, '4'),
KEYCODE_ENTRY(VK_NUMPAD5, '5'),
KEYCODE_ENTRY(VK_NUMPAD6, '6'),
KEYCODE_ENTRY(VK_NUMPAD7, '7'),
KEYCODE_ENTRY(VK_NUMPAD8, '8'),
KEYCODE_ENTRY(VK_NUMPAD9, '9'),
KEYCODE_ENTRY(VK_MULTIPLY, '*'),
KEYCODE_ENTRY(VK_ADD, '+'),
KEYCODE_ENTRY(VK_SEPARATOR, 0),
KEYCODE_ENTRY(VK_SUBTRACT, '-'),
KEYCODE_ENTRY(VK_DECIMAL, '.'),
KEYCODE_ENTRY(VK_DIVIDE, '/'),
KEYCODE_ENTRY(VK_F1, NSF1FunctionKey),
KEYCODE_ENTRY(VK_F2, NSF2FunctionKey),
KEYCODE_ENTRY(VK_F3, NSF3FunctionKey),
KEYCODE_ENTRY(VK_F4, NSF4FunctionKey),
KEYCODE_ENTRY(VK_F5, NSF5FunctionKey),
KEYCODE_ENTRY(VK_F6, NSF6FunctionKey),
KEYCODE_ENTRY(VK_F7, NSF7FunctionKey),
KEYCODE_ENTRY(VK_F8, NSF8FunctionKey),
KEYCODE_ENTRY(VK_F9, NSF9FunctionKey),
KEYCODE_ENTRY(VK_F10, NSF10FunctionKey),
KEYCODE_ENTRY(VK_F11, NSF11FunctionKey),
KEYCODE_ENTRY(VK_F12, NSF12FunctionKey),
KEYCODE_ENTRY(VK_F13, NSF13FunctionKey),
KEYCODE_ENTRY(VK_F14, NSF14FunctionKey),
KEYCODE_ENTRY(VK_F15, NSF15FunctionKey),
KEYCODE_ENTRY(VK_F16, NSF16FunctionKey),
KEYCODE_ENTRY(VK_F17, NSF17FunctionKey),
KEYCODE_ENTRY(VK_F18, NSF18FunctionKey),
KEYCODE_ENTRY(VK_F19, NSF19FunctionKey),
KEYCODE_ENTRY(VK_F20, NSF20FunctionKey),
KEYCODE_ENTRY(VK_F21, NSF21FunctionKey),
KEYCODE_ENTRY(VK_F22, NSF22FunctionKey),
KEYCODE_ENTRY(VK_F23, NSF23FunctionKey),
KEYCODE_ENTRY(VK_F24, NSF24FunctionKey),
KEYCODE_ENTRY(VK_NUM_LOCK, NSClearLineFunctionKey),
KEYCODE_ENTRY(VK_SCROLL_LOCK, NSScrollLockFunctionKey),
KEYCODE_ENTRY(VK_COMMA, ','),
KEYCODE_ENTRY(VK_PERIOD, '.'),
KEYCODE_ENTRY(VK_SLASH, '/'),
KEYCODE_ENTRY(VK_BACK_QUOTE, '`'),
KEYCODE_ENTRY(VK_OPEN_BRACKET, '['),
KEYCODE_ENTRY(VK_BACK_SLASH, '\\'),
KEYCODE_ENTRY(VK_CLOSE_BRACKET, ']'),
KEYCODE_ENTRY(VK_QUOTE, '\'')
#undef KEYCODE_ENTRY
};
PRUint32 nsMenuItemX::ConvertGeckoToMacKeyCode(nsAString& aKeyCodeName)
{
if (aKeyCodeName.IsEmpty()) {
return 0;
}
nsCAutoString keyCodeName;
keyCodeName.AssignWithConversion(aKeyCodeName);
// We want case-insensitive comparison with data stored as uppercase.
ToUpperCase(keyCodeName);
PRUint32 keyCodeNameLength = keyCodeName.Length();
const char* keyCodeNameStr = keyCodeName.get();
for (PRUint16 i = 0; i < (sizeof(gMacKeyCodes) / sizeof(gMacKeyCodes[0])); ++i) {
if (keyCodeNameLength == gMacKeyCodes[i].strlength &&
nsCRT::strcmp(gMacKeyCodes[i].str, keyCodeNameStr) == 0) {
return gMacKeyCodes[i].keycode;
}
}
return 0;
}
nsresult nsMenuItemX::Create(nsMenuX* aParent, const nsString& aLabel, EMenuItemType aItemType,
nsMenuGroupOwnerX* aMenuGroupOwner, nsIContent* aNode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
mType = aItemType;
mMenuParent = aParent;
mContent = aNode;
mMenuGroupOwner = aMenuGroupOwner;
NS_ASSERTION(mMenuGroupOwner, "No menu owner given, must have one!");
mMenuGroupOwner->RegisterForContentChanges(mContent, this);
nsIDocument *doc = mContent->GetCurrentDoc();
// if we have a command associated with this menu item, register for changes
// to the command DOM node
if (doc) {
nsAutoString ourCommand;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::command, ourCommand);
if (!ourCommand.IsEmpty()) {
nsIContent *commandElement = doc->GetElementById(ourCommand);
if (commandElement) {
mCommandContent = commandElement;
// register to observe the command DOM element
mMenuGroupOwner->RegisterForContentChanges(mCommandContent, this);
}
}
}
// decide enabled state based on command content if it exists, otherwise do it based
// on our own content
bool isEnabled;
if (mCommandContent)
isEnabled = !mCommandContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled, nsGkAtoms::_true, eCaseMatters);
else
isEnabled = !mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled, nsGkAtoms::_true, eCaseMatters);
// set up the native menu item
if (mType == eSeparatorMenuItemType) {
mNativeMenuItem = [[NSMenuItem separatorItem] retain];
}
else {
NSString *newCocoaLabelString = nsMenuUtilsX::GetTruncatedCocoaLabel(aLabel);
mNativeMenuItem = [[NSMenuItem alloc] initWithTitle:newCocoaLabelString action:nil keyEquivalent:@""];
[mNativeMenuItem setEnabled:(BOOL)isEnabled];
SetChecked(mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::checked,
nsGkAtoms::_true, eCaseMatters));
SetKeyEquiv();
}
mIcon = new nsMenuItemIconX(this, mContent, mNativeMenuItem);
if (!mIcon)
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult nsMenuItemX::SetChecked(bool aIsChecked)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
mIsChecked = aIsChecked;
// update the content model. This will also handle unchecking our siblings
// if we are a radiomenu
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::checked,
mIsChecked ? NS_LITERAL_STRING("true") : NS_LITERAL_STRING("false"), true);
// update native menu item
if (mIsChecked)
[mNativeMenuItem setState:NSOnState];
else
[mNativeMenuItem setState:NSOffState];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
EMenuItemType nsMenuItemX::GetMenuItemType()
{
return mType;
}
// Executes the "cached" javaScript command.
// Returns NS_OK if the command was executed properly, otherwise an error code.
void nsMenuItemX::DoCommand()
{
// flip "checked" state if we're a checkbox menu, or an un-checked radio menu
if (mType == eCheckboxMenuItemType ||
(mType == eRadioMenuItemType && !mIsChecked)) {
if (!mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::autocheck,
nsGkAtoms::_false, eCaseMatters))
SetChecked(!mIsChecked);
/* the AttributeChanged code will update all the internal state */
}
nsMenuUtilsX::DispatchCommandTo(mContent);
}
nsresult nsMenuItemX::DispatchDOMEvent(const nsString &eventName, bool *preventDefaultCalled)
{
if (!mContent)
return NS_ERROR_FAILURE;
// get owner document for content
nsCOMPtr<nsIDocument> parentDoc = mContent->OwnerDoc();
// get interface for creating DOM events from content owner document
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(parentDoc);
if (!domDoc) {
NS_WARNING("Failed to QI parent nsIDocument to nsIDOMDocument");
return NS_ERROR_FAILURE;
}
// create DOM event
nsCOMPtr<nsIDOMEvent> event;
nsresult rv = domDoc->CreateEvent(NS_LITERAL_STRING("Events"), getter_AddRefs(event));
if (NS_FAILED(rv)) {
NS_WARNING("Failed to create nsIDOMEvent");
return rv;
}
event->InitEvent(eventName, true, true);
// mark DOM event as trusted
event->SetTrusted(true);
// send DOM event
nsCOMPtr<nsIDOMEventTarget> eventTarget = do_QueryInterface(mContent);
rv = eventTarget->DispatchEvent(event, preventDefaultCalled);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to send DOM event via nsIDOMEventTarget");
return rv;
}
return NS_OK;
}
// Walk the sibling list looking for nodes with the same name and
// uncheck them all.
void nsMenuItemX::UncheckRadioSiblings(nsIContent* inCheckedContent)
{
nsAutoString myGroupName;
inCheckedContent->GetAttr(kNameSpaceID_None, nsGkAtoms::name, myGroupName);
if (!myGroupName.Length()) // no groupname, nothing to do
return;
nsCOMPtr<nsIContent> parent = inCheckedContent->GetParent();
if (!parent)
return;
// loop over siblings
PRUint32 count = parent->GetChildCount();
for (PRUint32 i = 0; i < count; i++) {
nsIContent *sibling = parent->GetChildAt(i);
if (sibling) {
if (sibling != inCheckedContent) { // skip this node
// if the current sibling is in the same group, clear it
if (sibling->AttrValueIs(kNameSpaceID_None, nsGkAtoms::name,
myGroupName, eCaseMatters))
sibling->SetAttr(kNameSpaceID_None, nsGkAtoms::checked, NS_LITERAL_STRING("false"), true);
}
}
}
}
void nsMenuItemX::SetKeyEquiv()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Set key shortcut and modifiers
nsAutoString keyValue;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::key, keyValue);
if (!keyValue.IsEmpty() && mContent->GetCurrentDoc()) {
nsIContent *keyContent = mContent->GetCurrentDoc()->GetElementById(keyValue);
if (keyContent) {
nsAutoString keyChar;
bool hasKey = keyContent->GetAttr(kNameSpaceID_None, nsGkAtoms::key, keyChar);
if (!hasKey || keyChar.IsEmpty()) {
nsAutoString keyCodeName;
keyContent->GetAttr(kNameSpaceID_None, nsGkAtoms::keycode, keyCodeName);
PRUint32 keycode = ConvertGeckoToMacKeyCode(keyCodeName);
if (keycode) {
keyChar.Assign(keycode);
}
else {
keyChar.Assign(NS_LITERAL_STRING(" "));
}
}
nsAutoString modifiersStr;
keyContent->GetAttr(kNameSpaceID_None, nsGkAtoms::modifiers, modifiersStr);
PRUint8 modifiers = nsMenuUtilsX::GeckoModifiersForNodeAttribute(modifiersStr);
unsigned int macModifiers = nsMenuUtilsX::MacModifiersForGeckoModifiers(modifiers);
[mNativeMenuItem setKeyEquivalentModifierMask:macModifiers];
NSString *keyEquivalent = [[NSString stringWithCharacters:(unichar*)keyChar.get()
length:keyChar.Length()] lowercaseString];
if ([keyEquivalent isEqualToString:@" "])
[mNativeMenuItem setKeyEquivalent:@""];
else
[mNativeMenuItem setKeyEquivalent:keyEquivalent];
return;
}
}
// if the key was removed, clear the key
[mNativeMenuItem setKeyEquivalent:@""];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
//
// nsChangeObserver
//
void
nsMenuItemX::ObserveAttributeChanged(nsIDocument *aDocument, nsIContent *aContent, nsIAtom *aAttribute)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!aContent)
return;
if (aContent == mContent) { // our own content node changed
if (aAttribute == nsGkAtoms::checked) {
// if we're a radio menu, uncheck our sibling radio items. No need to
// do any of this if we're just a normal check menu.
if (mType == eRadioMenuItemType) {
if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::checked,
nsGkAtoms::_true, eCaseMatters))
UncheckRadioSiblings(mContent);
}
mMenuParent->SetRebuild(true);
}
else if (aAttribute == nsGkAtoms::hidden ||
aAttribute == nsGkAtoms::collapsed ||
aAttribute == nsGkAtoms::label) {
mMenuParent->SetRebuild(true);
}
else if (aAttribute == nsGkAtoms::key) {
SetKeyEquiv();
}
else if (aAttribute == nsGkAtoms::image) {
SetupIcon();
}
else if (aAttribute == nsGkAtoms::disabled) {
if (aContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled, nsGkAtoms::_true, eCaseMatters))
[mNativeMenuItem setEnabled:NO];
else
[mNativeMenuItem setEnabled:YES];
}
}
else if (aContent == mCommandContent) {
// the only thing that really matters when the menu isn't showing is the
// enabled state since it enables/disables keyboard commands
if (aAttribute == nsGkAtoms::disabled) {
// first we sync our menu item DOM node with the command DOM node
nsAutoString commandDisabled;
nsAutoString menuDisabled;
aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::disabled, commandDisabled);
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::disabled, menuDisabled);
if (!commandDisabled.Equals(menuDisabled)) {
// The menu's disabled state needs to be updated to match the command.
if (commandDisabled.IsEmpty())
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::disabled, true);
else
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::disabled, commandDisabled, true);
}
// now we sync our native menu item with the command DOM node
if (aContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled, nsGkAtoms::_true, eCaseMatters))
[mNativeMenuItem setEnabled:NO];
else
[mNativeMenuItem setEnabled:YES];
}
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsMenuItemX::ObserveContentRemoved(nsIDocument *aDocument, nsIContent *aChild, PRInt32 aIndexInContainer)
{
if (aChild == mCommandContent) {
mMenuGroupOwner->UnregisterForContentChanges(mCommandContent);
mCommandContent = nsnull;
}
mMenuParent->SetRebuild(true);
}
void nsMenuItemX::ObserveContentInserted(nsIDocument *aDocument, nsIContent* aContainer,
nsIContent *aChild)
{
mMenuParent->SetRebuild(true);
}
void nsMenuItemX::SetupIcon()
{
if (mIcon)
mIcon->SetupIcon();
}
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