gecko-dev/widget/cocoa/nsMenuUtilsX.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 "nsMenuUtilsX.h"
#include "nsMenuBarX.h"
#include "nsMenuX.h"
#include "nsMenuItemX.h"
#include "nsStandaloneNativeMenu.h"
#include "nsObjCExceptions.h"
#include "nsCocoaUtils.h"
#include "nsCocoaWindow.h"
#include "nsGkAtoms.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMXULCommandEvent.h"
#include "nsPIDOMWindow.h"
void nsMenuUtilsX::DispatchCommandTo(nsIContent* aTargetContent)
{
NS_PRECONDITION(aTargetContent, "null ptr");
nsIDocument* doc = aTargetContent->OwnerDoc();
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(doc);
nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(aTargetContent);
if (domDoc && target) {
nsCOMPtr<nsIDOMEvent> event;
domDoc->CreateEvent(NS_LITERAL_STRING("xulcommandevent"),
getter_AddRefs(event));
nsCOMPtr<nsIDOMXULCommandEvent> command = do_QueryInterface(event);
// FIXME: Should probably figure out how to init this with the actual
// pressed keys, but this is a big old edge case anyway. -dwh
if (command &&
NS_SUCCEEDED(command->InitCommandEvent(NS_LITERAL_STRING("command"),
true, true,
doc->GetWindow(), 0,
false, false, false,
false, nsnull))) {
event->SetTrusted(true);
bool dummy;
target->DispatchEvent(event, &dummy);
}
}
}
NSString* nsMenuUtilsX::GetTruncatedCocoaLabel(const nsString& itemLabel)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
// We want to truncate long strings to some reasonable pixel length but there is no
// good API for doing that which works for all OS versions and architectures. For now
// we'll do nothing for consistency and depend on good user interface design to limit
// string lengths.
return [NSString stringWithCharacters:itemLabel.get() length:itemLabel.Length()];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
PRUint8 nsMenuUtilsX::GeckoModifiersForNodeAttribute(const nsString& modifiersAttribute)
{
PRUint8 modifiers = knsMenuItemNoModifier;
char* str = ToNewCString(modifiersAttribute);
char* newStr;
char* token = strtok_r(str, ", \t", &newStr);
while (token != NULL) {
if (strcmp(token, "shift") == 0)
modifiers |= knsMenuItemShiftModifier;
else if (strcmp(token, "alt") == 0)
modifiers |= knsMenuItemAltModifier;
else if (strcmp(token, "control") == 0)
modifiers |= knsMenuItemControlModifier;
else if ((strcmp(token, "accel") == 0) ||
(strcmp(token, "meta") == 0)) {
modifiers |= knsMenuItemCommandModifier;
}
token = strtok_r(newStr, ", \t", &newStr);
}
free(str);
return modifiers;
}
unsigned int nsMenuUtilsX::MacModifiersForGeckoModifiers(PRUint8 geckoModifiers)
{
unsigned int macModifiers = 0;
if (geckoModifiers & knsMenuItemShiftModifier)
macModifiers |= NSShiftKeyMask;
if (geckoModifiers & knsMenuItemAltModifier)
macModifiers |= NSAlternateKeyMask;
if (geckoModifiers & knsMenuItemControlModifier)
macModifiers |= NSControlKeyMask;
if (geckoModifiers & knsMenuItemCommandModifier)
macModifiers |= NSCommandKeyMask;
return macModifiers;
}
nsMenuBarX* nsMenuUtilsX::GetHiddenWindowMenuBar()
{
nsIWidget* hiddenWindowWidgetNoCOMPtr = nsCocoaUtils::GetHiddenWindowWidget();
if (hiddenWindowWidgetNoCOMPtr)
return static_cast<nsCocoaWindow*>(hiddenWindowWidgetNoCOMPtr)->GetMenuBar();
else
return nsnull;
}
// It would be nice if we could localize these edit menu names.
NSMenuItem* nsMenuUtilsX::GetStandardEditMenuItem()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
// In principle we should be able to allocate this once and then always
// return the same object. But wierd interactions happen between native
// app-modal dialogs and Gecko-modal dialogs that open above them. So what
// we return here isn't always released before it needs to be added to
// another menu. See bmo bug 468393.
NSMenuItem* standardEditMenuItem =
[[[NSMenuItem alloc] initWithTitle:@"Edit" action:nil keyEquivalent:@""] autorelease];
NSMenu* standardEditMenu = [[NSMenu alloc] initWithTitle:@"Edit"];
[standardEditMenuItem setSubmenu:standardEditMenu];
[standardEditMenu release];
// Add Undo
NSMenuItem* undoItem = [[NSMenuItem alloc] initWithTitle:@"Undo" action:@selector(undo:) keyEquivalent:@"z"];
[standardEditMenu addItem:undoItem];
[undoItem release];
// Add Redo
NSMenuItem* redoItem = [[NSMenuItem alloc] initWithTitle:@"Redo" action:@selector(redo:) keyEquivalent:@"Z"];
[standardEditMenu addItem:redoItem];
[redoItem release];
// Add separator
[standardEditMenu addItem:[NSMenuItem separatorItem]];
// Add Cut
NSMenuItem* cutItem = [[NSMenuItem alloc] initWithTitle:@"Cut" action:@selector(cut:) keyEquivalent:@"x"];
[standardEditMenu addItem:cutItem];
[cutItem release];
// Add Copy
NSMenuItem* copyItem = [[NSMenuItem alloc] initWithTitle:@"Copy" action:@selector(copy:) keyEquivalent:@"c"];
[standardEditMenu addItem:copyItem];
[copyItem release];
// Add Paste
NSMenuItem* pasteItem = [[NSMenuItem alloc] initWithTitle:@"Paste" action:@selector(paste:) keyEquivalent:@"v"];
[standardEditMenu addItem:pasteItem];
[pasteItem release];
// Add Delete
NSMenuItem* deleteItem = [[NSMenuItem alloc] initWithTitle:@"Delete" action:@selector(delete:) keyEquivalent:@""];
[standardEditMenu addItem:deleteItem];
[deleteItem release];
// Add Select All
NSMenuItem* selectAllItem = [[NSMenuItem alloc] initWithTitle:@"Select All" action:@selector(selectAll:) keyEquivalent:@"a"];
[standardEditMenu addItem:selectAllItem];
[selectAllItem release];
return standardEditMenuItem;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
bool nsMenuUtilsX::NodeIsHiddenOrCollapsed(nsIContent* inContent)
{
return (inContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::hidden,
nsGkAtoms::_true, eCaseMatters) ||
inContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::collapsed,
nsGkAtoms::_true, eCaseMatters));
}
// Determines how many items are visible among the siblings in a menu that are
// before the given child. This will not count the application menu.
int nsMenuUtilsX::CalculateNativeInsertionPoint(nsMenuObjectX* aParent,
nsMenuObjectX* aChild)
{
int insertionPoint = 0;
nsMenuObjectTypeX parentType = aParent->MenuObjectType();
if (parentType == eMenuBarObjectType) {
nsMenuBarX* menubarParent = static_cast<nsMenuBarX*>(aParent);
PRUint32 numMenus = menubarParent->GetMenuCount();
for (PRUint32 i = 0; i < numMenus; i++) {
nsMenuX* currMenu = menubarParent->GetMenuAt(i);
if (currMenu == aChild)
return insertionPoint; // we found ourselves, break out
if (currMenu && [currMenu->NativeMenuItem() menu])
insertionPoint++;
}
}
else if (parentType == eSubmenuObjectType ||
parentType == eStandaloneNativeMenuObjectType) {
nsMenuX* menuParent;
if (parentType == eSubmenuObjectType)
menuParent = static_cast<nsMenuX*>(aParent);
else
menuParent = static_cast<nsStandaloneNativeMenu*>(aParent)->GetMenuXObject();
PRUint32 numItems = menuParent->GetItemCount();
for (PRUint32 i = 0; i < numItems; i++) {
// Using GetItemAt instead of GetVisibleItemAt to avoid O(N^2)
nsMenuObjectX* currItem = menuParent->GetItemAt(i);
if (currItem == aChild)
return insertionPoint; // we found ourselves, break out
NSMenuItem* nativeItem = nil;
nsMenuObjectTypeX currItemType = currItem->MenuObjectType();
if (currItemType == eSubmenuObjectType)
nativeItem = static_cast<nsMenuX*>(currItem)->NativeMenuItem();
else
nativeItem = (NSMenuItem*)(currItem->NativeData());
if ([nativeItem menu])
insertionPoint++;
}
}
return insertionPoint;
}