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nsCocoaWindow.mm
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nsCocoaWindow.mm
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/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Josh Aas <josh@mozilla.com>
* Colin Barrett <cbarrett@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCocoaWindow.h"
#include "nsObjCExceptions.h"
#include "nsCOMPtr.h"
#include "nsWidgetsCID.h"
#include "nsGUIEvent.h"
#include "nsIRollupListener.h"
#include "nsChildView.h"
#include "nsWindowMap.h"
#include "nsAppShell.h"
#include "nsIAppShellService.h"
#include "nsIBaseWindow.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIXULWindow.h"
#include "nsToolkit.h"
#include "nsIDOMWindow.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMElement.h"
#include "nsThreadUtils.h"
#include "nsMenuBarX.h"
#include "nsMenuUtilsX.h"
#include "nsStyleConsts.h"
#include "nsNativeThemeColors.h"
#include "nsChildView.h"
#include "gfxPlatform.h"
#include "qcms.h"
#include "mozilla/Preferences.h"
namespace mozilla {
namespace layers {
class LayerManager;
}
}
using namespace mozilla::layers;
using namespace mozilla;
// defined in nsAppShell.mm
extern nsCocoaAppModalWindowList *gCocoaAppModalWindowList;
PRInt32 gXULModalLevel = 0;
// In principle there should be only one app-modal window at any given time.
// But sometimes, despite our best efforts, another window appears above the
// current app-modal window. So we need to keep a linked list of app-modal
// windows. (A non-sheet window that appears above an app-modal window is
// also made app-modal.) See nsCocoaWindow::SetModal().
nsCocoaWindowList *gGeckoAppModalWindowList = NULL;
bool gConsumeRollupEvent;
// defined in nsMenuBarX.mm
extern NSMenu* sApplicationMenu; // Application menu shared by all menubars
// defined in nsChildView.mm
extern nsIRollupListener * gRollupListener;
extern nsIWidget * gRollupWidget;
extern BOOL gSomeMenuBarPainted;
extern "C" {
// CGSPrivate.h
typedef NSInteger CGSConnection;
typedef NSInteger CGSWindow;
typedef NSUInteger CGSWindowFilterRef;
extern CGSConnection _CGSDefaultConnection(void);
extern CGError CGSSetWindowShadowAndRimParameters(const CGSConnection cid, CGSWindow wid, float standardDeviation, float density, int offsetX, int offsetY, unsigned int flags);
extern CGError CGSNewCIFilterByName(CGSConnection cid, CFStringRef filterName, CGSWindowFilterRef *outFilter);
extern CGError CGSSetCIFilterValuesFromDictionary(CGSConnection cid, CGSWindowFilterRef filter, CFDictionaryRef filterValues);
extern CGError CGSAddWindowFilter(CGSConnection cid, CGSWindow wid, CGSWindowFilterRef filter, NSInteger flags);
extern CGError CGSRemoveWindowFilter(CGSConnection cid, CGSWindow wid, CGSWindowFilterRef filter);
extern CGError CGSReleaseCIFilter(CGSConnection cid, CGSWindowFilterRef filter);
}
#define NS_APPSHELLSERVICE_CONTRACTID "@mozilla.org/appshell/appShellService;1"
NS_IMPL_ISUPPORTS_INHERITED1(nsCocoaWindow, Inherited, nsPIWidgetCocoa)
// A note on testing to see if your object is a sheet...
// |mWindowType == eWindowType_sheet| is true if your gecko nsIWidget is a sheet
// widget - whether or not the sheet is showing. |[mWindow isSheet]| will return
// true *only when the sheet is actually showing*. Choose your test wisely.
// roll up any popup windows
static void RollUpPopups()
{
if (gRollupListener && gRollupWidget)
gRollupListener->Rollup(0);
}
nsCocoaWindow::nsCocoaWindow()
: mParent(nsnull)
, mWindow(nil)
, mDelegate(nil)
, mSheetWindowParent(nil)
, mPopupContentView(nil)
, mShadowStyle(NS_STYLE_WINDOW_SHADOW_DEFAULT)
, mWindowFilter(0)
, mWindowMadeHere(false)
, mSheetNeedsShow(false)
, mFullScreen(false)
, mModal(false)
, mInReportMoveEvent(false)
, mNumModalDescendents(0)
{
}
void nsCocoaWindow::DestroyNativeWindow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
CleanUpWindowFilter();
// We want to unhook the delegate here because we don't want events
// sent to it after this object has been destroyed.
[mWindow setDelegate:nil];
[mWindow close];
[mDelegate autorelease];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsCocoaWindow::~nsCocoaWindow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Notify the children that we're gone. Popup windows (e.g. tooltips) can
// have nsChildView children. 'kid' is an nsChildView object if and only if
// its 'type' is 'eWindowType_child' or 'eWindowType_plugin'.
// childView->ResetParent() can change our list of children while it's
// being iterated, so the way we iterate the list must allow for this.
for (nsIWidget* kid = mLastChild; kid;) {
nsWindowType kidType;
kid->GetWindowType(kidType);
if (kidType == eWindowType_child || kidType == eWindowType_plugin) {
nsChildView* childView = static_cast<nsChildView*>(kid);
kid = kid->GetPrevSibling();
childView->ResetParent();
} else {
nsCocoaWindow* childWindow = static_cast<nsCocoaWindow*>(kid);
childWindow->mParent = nsnull;
kid = kid->GetPrevSibling();
}
}
if (mWindow && mWindowMadeHere) {
DestroyNativeWindow();
}
NS_IF_RELEASE(mPopupContentView);
// Deal with the possiblity that we're being destroyed while running modal.
NS_ASSERTION(!mModal, "Widget destroyed while running modal!");
if (mModal) {
--gXULModalLevel;
NS_ASSERTION(gXULModalLevel >= 0, "Wierdness setting modality!");
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
static void FitRectToVisibleAreaForScreen(nsIntRect &aRect, NSScreen *screen)
{
if (!screen)
return;
nsIntRect screenBounds(nsCocoaUtils::CocoaRectToGeckoRect([screen visibleFrame]));
if (aRect.width > screenBounds.width) {
aRect.width = screenBounds.width;
}
if (aRect.height > screenBounds.height) {
aRect.height = screenBounds.height;
}
if (aRect.x - screenBounds.x + aRect.width > screenBounds.width) {
aRect.x += screenBounds.width - (aRect.x - screenBounds.x + aRect.width);
}
if (aRect.y - screenBounds.y + aRect.height > screenBounds.height) {
aRect.y += screenBounds.height - (aRect.y - screenBounds.y + aRect.height);
}
// If the left/top edge of the window is off the screen in either direction,
// then set the window to start at the left/top edge of the screen.
if (aRect.x < screenBounds.x || aRect.x > (screenBounds.x + screenBounds.width)) {
aRect.x = screenBounds.x;
}
if (aRect.y < screenBounds.y || aRect.y > (screenBounds.y + screenBounds.height)) {
aRect.y = screenBounds.y;
}
}
// Some applications like Camino use native popup windows
// (native context menus, native tooltips)
static bool UseNativePopupWindows()
{
#ifdef MOZ_USE_NATIVE_POPUP_WINDOWS
return true;
#else
return false;
#endif /* MOZ_USE_NATIVE_POPUP_WINDOWS */
}
nsresult nsCocoaWindow::Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext,
nsWidgetInitData *aInitData)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Because the hidden window is created outside of an event loop,
// we have to provide an autorelease pool (see bug 559075).
nsAutoreleasePool localPool;
// Find the screen that overlaps aRect the most,
// if none are found default to the mainScreen.
NSScreen *targetScreen = [NSScreen mainScreen];
NSArray *screens = [NSScreen screens];
if (screens) {
int largestIntersectArea = 0;
int i = [screens count];
while (i--) {
NSScreen *screen = [screens objectAtIndex:i];
nsIntRect screenBounds(nsCocoaUtils::CocoaRectToGeckoRect([screen visibleFrame]));
nsIntRegion intersect;
intersect.And(screenBounds, aRect);
int area = intersect.GetBounds().width * intersect.GetBounds().height;
if (area > largestIntersectArea) {
largestIntersectArea = area;
targetScreen = screen;
}
}
}
nsIntRect newBounds = aRect;
FitRectToVisibleAreaForScreen(newBounds, targetScreen);
// Set defaults which can be overriden from aInitData in BaseCreate
mWindowType = eWindowType_toplevel;
mBorderStyle = eBorderStyle_default;
// Ensure that the toolkit is created.
nsToolkit::GetToolkit();
Inherited::BaseCreate(aParent, newBounds, aHandleEventFunction, aContext,
aInitData);
mParent = aParent;
// Applications that use native popups don't want us to create popup windows.
if ((mWindowType == eWindowType_popup) && UseNativePopupWindows())
return NS_OK;
nsresult rv = CreateNativeWindow(nsCocoaUtils::GeckoRectToCocoaRect(newBounds),
mBorderStyle, false);
NS_ENSURE_SUCCESS(rv, rv);
if (mWindowType == eWindowType_popup) {
if (aInitData->mIsDragPopup) {
[mWindow setIgnoresMouseEvents:YES];
}
return CreatePopupContentView(newBounds, aHandleEventFunction, aContext);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
static unsigned int WindowMaskForBorderStyle(nsBorderStyle aBorderStyle)
{
bool allOrDefault = (aBorderStyle == eBorderStyle_all ||
aBorderStyle == eBorderStyle_default);
/* Apple's docs on NSWindow styles say that "a window's style mask should
* include NSTitledWindowMask if it includes any of the others [besides
* NSBorderlessWindowMask]". This implies that a borderless window
* shouldn't have any other styles than NSBorderlessWindowMask.
*/
if (!allOrDefault && !(aBorderStyle & eBorderStyle_title))
return NSBorderlessWindowMask;
unsigned int mask = NSTitledWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_close)
mask |= NSClosableWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_minimize)
mask |= NSMiniaturizableWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_resizeh)
mask |= NSResizableWindowMask;
return mask;
}
NS_IMETHODIMP nsCocoaWindow::ReparentNativeWidget(nsIWidget* aNewParent)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
// If aRectIsFrameRect, aRect specifies the frame rect of the new window.
// Otherwise, aRect.x/y specify the position of the window's frame relative to
// the bottom of the menubar and aRect.width/height specify the size of the
// content rect.
nsresult nsCocoaWindow::CreateNativeWindow(const NSRect &aRect,
nsBorderStyle aBorderStyle,
bool aRectIsFrameRect)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We default to NSBorderlessWindowMask, add features if needed.
unsigned int features = NSBorderlessWindowMask;
// Configure the window we will create based on the window type.
switch (mWindowType)
{
case eWindowType_invisible:
case eWindowType_child:
case eWindowType_plugin:
break;
case eWindowType_popup:
if (aBorderStyle != eBorderStyle_default && mBorderStyle & eBorderStyle_title) {
features |= NSTitledWindowMask;
if (aBorderStyle & eBorderStyle_close) {
features |= NSClosableWindowMask;
}
}
break;
case eWindowType_toplevel:
case eWindowType_dialog:
features = WindowMaskForBorderStyle(aBorderStyle);
break;
case eWindowType_sheet:
nsWindowType parentType;
mParent->GetWindowType(parentType);
if (parentType != eWindowType_invisible &&
aBorderStyle & eBorderStyle_resizeh) {
features = NSResizableWindowMask;
}
else {
features = NSMiniaturizableWindowMask;
}
features |= NSTitledWindowMask;
break;
default:
NS_ERROR("Unhandled window type!");
return NS_ERROR_FAILURE;
}
NSRect contentRect;
if (aRectIsFrameRect) {
contentRect = [NSWindow contentRectForFrameRect:aRect styleMask:features];
} else {
/*
* We pass a content area rect to initialize the native Cocoa window. The
* content rect we give is the same size as the size we're given by gecko.
* The origin we're given for non-popup windows is moved down by the height
* of the menu bar so that an origin of (0,100) from gecko puts the window
* 100 pixels below the top of the available desktop area. We also move the
* origin down by the height of a title bar if it exists. This is so the
* origin that gecko gives us for the top-left of the window turns out to
* be the top-left of the window we create. This is how it was done in
* Carbon. If it ought to be different we'll probably need to look at all
* the callers.
*
* Note: This means that if you put a secondary screen on top of your main
* screen and open a window in the top screen, it'll be incorrectly shifted
* down by the height of the menu bar. Same thing would happen in Carbon.
*
* Note: If you pass a rect with 0,0 for an origin, the window ends up in a
* weird place for some reason. This stops that without breaking popups.
*/
// Compensate for difference between frame and content area height (e.g. title bar).
NSRect newWindowFrame = [NSWindow frameRectForContentRect:aRect styleMask:features];
contentRect = aRect;
contentRect.origin.y -= (newWindowFrame.size.height - aRect.size.height);
if (mWindowType != eWindowType_popup)
contentRect.origin.y -= [[NSApp mainMenu] menuBarHeight];
}
// NSLog(@"Top-level window being created at Cocoa rect: %f, %f, %f, %f\n",
// rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
Class windowClass = [BaseWindow class];
// If we have a titlebar on a top-level window, we want to be able to control the
// titlebar color (for unified windows), so use the special ToolbarWindow class.
// Note that we need to check the window type because we mark sheets as
// having titlebars.
if ((mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog) &&
(features & NSTitledWindowMask))
windowClass = [ToolbarWindow class];
// If we're a popup window we need to use the PopupWindow class.
else if (mWindowType == eWindowType_popup)
windowClass = [PopupWindow class];
// If we're a non-popup borderless window we need to use the
// BorderlessWindow class.
else if (features == NSBorderlessWindowMask)
windowClass = [BorderlessWindow class];
// Create the window
mWindow = [[windowClass alloc] initWithContentRect:contentRect styleMask:features
backing:NSBackingStoreBuffered defer:YES];
// Make sure that the content rect we gave has been honored.
NSRect wantedFrame = [mWindow frameRectForContentRect:contentRect];
if (!NSEqualRects([mWindow frame], wantedFrame)) {
// This can happen when the window is not on the primary screen.
[mWindow setFrame:wantedFrame display:NO];
}
UpdateBounds();
if (mWindowType == eWindowType_invisible) {
[mWindow setLevel:kCGDesktopWindowLevelKey];
} else if (mWindowType == eWindowType_popup) {
SetPopupWindowLevel();
[mWindow setHasShadow:YES];
}
[mWindow setBackgroundColor:[NSColor clearColor]];
[mWindow setOpaque:NO];
[mWindow setContentMinSize:NSMakeSize(60, 60)];
[mWindow disableCursorRects];
// setup our notification delegate. Note that setDelegate: does NOT retain.
mDelegate = [[WindowDelegate alloc] initWithGeckoWindow:this];
[mWindow setDelegate:mDelegate];
[[WindowDataMap sharedWindowDataMap] ensureDataForWindow:mWindow];
mWindowMadeHere = true;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::CreatePopupContentView(const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We need to make our content view a ChildView.
mPopupContentView = new nsChildView();
if (!mPopupContentView)
return NS_ERROR_FAILURE;
NS_ADDREF(mPopupContentView);
nsIWidget* thisAsWidget = static_cast<nsIWidget*>(this);
mPopupContentView->Create(thisAsWidget, nsnull, aRect, aHandleEventFunction,
aContext, nsnull);
ChildView* newContentView = (ChildView*)mPopupContentView->GetNativeData(NS_NATIVE_WIDGET);
[mWindow setContentView:newContentView];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::Destroy()
{
if (mPopupContentView)
mPopupContentView->Destroy();
nsBaseWidget::Destroy();
nsBaseWidget::OnDestroy();
if (mFullScreen) {
nsCocoaUtils::HideOSChromeOnScreen(false, [mWindow screen]);
}
return NS_OK;
}
nsIWidget* nsCocoaWindow::GetSheetWindowParent(void)
{
if (mWindowType != eWindowType_sheet)
return nsnull;
nsCocoaWindow *parent = static_cast<nsCocoaWindow*>(mParent);
while (parent && (parent->mWindowType == eWindowType_sheet))
parent = static_cast<nsCocoaWindow*>(parent->mParent);
return parent;
}
void* nsCocoaWindow::GetNativeData(PRUint32 aDataType)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSNULL;
void* retVal = nsnull;
switch (aDataType) {
// to emulate how windows works, we always have to return a NSView
// for NS_NATIVE_WIDGET
case NS_NATIVE_WIDGET:
case NS_NATIVE_DISPLAY:
retVal = [mWindow contentView];
break;
case NS_NATIVE_WINDOW:
retVal = mWindow;
break;
case NS_NATIVE_GRAPHIC:
// There isn't anything that makes sense to return here,
// and it doesn't matter so just return nsnull.
NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a top-level window!");
break;
}
return retVal;
NS_OBJC_END_TRY_ABORT_BLOCK_NSNULL;
}
NS_IMETHODIMP nsCocoaWindow::IsVisible(bool & aState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
aState = ([mWindow isVisible] || mSheetNeedsShow);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::SetModal(bool aState)
{
// This is used during startup (outside the event loop) when creating
// the add-ons compatibility checking dialog and the profile manager UI;
// therefore, it needs to provide an autorelease pool to avoid cocoa
// objects leaking.
nsAutoreleasePool localPool;
mModal = aState;
nsCocoaWindow *aParent = static_cast<nsCocoaWindow*>(mParent);
if (aState) {
++gXULModalLevel;
if (gCocoaAppModalWindowList)
gCocoaAppModalWindowList->PushGecko(mWindow, this);
// When a non-sheet window gets "set modal", make the window(s) that it
// appears over behave as they should. We can't rely on native methods to
// do this, for the following reason: The OS runs modal non-sheet windows
// in an event loop (using [NSApplication runModalForWindow:] or similar
// methods) that's incompatible with the modal event loop in nsXULWindow::
// ShowModal() (each of these event loops is "exclusive", and can't run at
// the same time as other (similar) event loops).
if (mWindowType != eWindowType_sheet) {
while (aParent) {
if (aParent->mNumModalDescendents++ == 0) {
NSWindow *aWindow = aParent->GetCocoaWindow();
if (aParent->mWindowType != eWindowType_invisible) {
[[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:NO];
[[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:NO];
[[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:NO];
}
}
aParent = static_cast<nsCocoaWindow*>(aParent->mParent);
}
[mWindow setLevel:NSModalPanelWindowLevel];
nsCocoaWindowList *windowList = new nsCocoaWindowList;
if (windowList) {
windowList->window = this; // Don't ADDREF
windowList->prev = gGeckoAppModalWindowList;
gGeckoAppModalWindowList = windowList;
}
}
}
else {
--gXULModalLevel;
NS_ASSERTION(gXULModalLevel >= 0, "Mismatched call to nsCocoaWindow::SetModal(false)!");
if (gCocoaAppModalWindowList)
gCocoaAppModalWindowList->PopGecko(mWindow, this);
if (mWindowType != eWindowType_sheet) {
while (aParent) {
if (--aParent->mNumModalDescendents == 0) {
NSWindow *aWindow = aParent->GetCocoaWindow();
if (aParent->mWindowType != eWindowType_invisible) {
[[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:YES];
[[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:YES];
[[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:YES];
}
}
NS_ASSERTION(aParent->mNumModalDescendents >= 0, "Widget hierarchy changed while modal!");
aParent = static_cast<nsCocoaWindow*>(aParent->mParent);
}
if (gGeckoAppModalWindowList) {
NS_ASSERTION(gGeckoAppModalWindowList->window == this, "Widget hierarchy changed while modal!");
nsCocoaWindowList *saved = gGeckoAppModalWindowList;
gGeckoAppModalWindowList = gGeckoAppModalWindowList->prev;
delete saved; // "window" not ADDREFed
}
if (mWindowType == eWindowType_popup)
SetPopupWindowLevel();
else
[mWindow setLevel:NSNormalWindowLevel];
}
}
return NS_OK;
}
// Hide or show this window
NS_IMETHODIMP nsCocoaWindow::Show(bool bState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We need to re-execute sometimes in order to bring already-visible
// windows forward.
if (!mSheetNeedsShow && !bState && ![mWindow isVisible])
return NS_OK;
nsIWidget* parentWidget = mParent;
nsCOMPtr<nsPIWidgetCocoa> piParentWidget(do_QueryInterface(parentWidget));
NSWindow* nativeParentWindow = (parentWidget) ?
(NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW) : nil;
if (bState && !mBounds.IsEmpty()) {
if (mWindowType == eWindowType_sheet) {
// bail if no parent window (its basically what we do in Carbon)
if (!nativeParentWindow || !piParentWidget)
return NS_ERROR_FAILURE;
NSWindow* topNonSheetWindow = nativeParentWindow;
// If this sheet is the child of another sheet, hide the parent so that
// this sheet can be displayed. Leave the parent mSheetNeedsShow alone,
// that is only used to handle sibling sheet contention. The parent will
// return once there are no more child sheets.
bool parentIsSheet = false;
if (NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) &&
parentIsSheet) {
piParentWidget->GetSheetWindowParent(&topNonSheetWindow);
[NSApp endSheet:nativeParentWindow];
}
nsCocoaWindow* sheetShown = nsnull;
if (NS_SUCCEEDED(piParentWidget->GetChildSheet(true, &sheetShown)) &&
(!sheetShown || sheetShown == this)) {
// If this sheet is already the sheet actually being shown, don't
// tell it to show again. Otherwise the number of calls to
// [NSApp beginSheet...] won't match up with [NSApp endSheet...].
if (![mWindow isVisible]) {
mSheetNeedsShow = false;
mSheetWindowParent = topNonSheetWindow;
// Only set contextInfo if our parent isn't a sheet.
NSWindow* contextInfo = parentIsSheet ? nil : mSheetWindowParent;
[TopLevelWindowData deactivateInWindow:mSheetWindowParent];
[NSApp beginSheet:mWindow
modalForWindow:mSheetWindowParent
modalDelegate:mDelegate
didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
contextInfo:contextInfo];
[TopLevelWindowData activateInWindow:mWindow];
SendSetZLevelEvent();
}
}
else {
// A sibling of this sheet is active, don't show this sheet yet.
// When the active sheet hides, its brothers and sisters that have
// mSheetNeedsShow set will have their opportunities to display.
mSheetNeedsShow = true;
}
}
else if (mWindowType == eWindowType_popup) {
// If a popup window is shown after being hidden, it needs to be "reset"
// for it to receive any mouse events aside from mouse-moved events
// (because it was removed from the "window cache" when it was hidden
// -- see below). Setting the window number to -1 and then back to its
// original value seems to accomplish this. The idea was "borrowed"
// from the Java Embedding Plugin.
NSInteger windowNumber = [mWindow windowNumber];
[mWindow _setWindowNumber:-1];
[mWindow _setWindowNumber:windowNumber];
// For reasons that aren't yet clear, calls to [NSWindow orderFront:] or
// [NSWindow makeKeyAndOrderFront:] can sometimes trigger "Error (1000)
// creating CGSWindow", which in turn triggers an internal inconsistency
// NSException. These errors shouldn't be fatal. So we need to wrap
// calls to ...orderFront: in LOGONLY blocks. See bmo bug 470864.
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
[mWindow orderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
SendSetZLevelEvent();
AdjustWindowShadow();
SetUpWindowFilter();
// If our popup window is a non-native context menu, tell the OS (and
// other programs) that a menu has opened. This is how the OS knows to
// close other programs' context menus when ours open.
if ([mWindow isKindOfClass:[PopupWindow class]] &&
[(PopupWindow*) mWindow isContextMenu]) {
[[NSDistributedNotificationCenter defaultCenter]
postNotificationName:@"com.apple.HIToolbox.beginMenuTrackingNotification"
object:@"org.mozilla.gecko.PopupWindow"];
}
// If a parent window was supplied and this is a popup at the parent
// level, set its child window. This will cause the child window to
// appear above the parent and move when the parent does. Setting this
// needs to happen after the _setWindowNumber calls above, otherwise the
// window doesn't focus properly.
if (nativeParentWindow && mPopupLevel == ePopupLevelParent)
[nativeParentWindow addChildWindow:mWindow
ordered:NSWindowAbove];
}
else {
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
[mWindow makeKeyAndOrderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
SendSetZLevelEvent();
}
}
else {
// roll up any popups if a top-level window is going away
if (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog)
RollUpPopups();
// now get rid of the window/sheet
if (mWindowType == eWindowType_sheet) {
if (mSheetNeedsShow) {
// This is an attempt to hide a sheet that never had a chance to
// be shown. There's nothing to do other than make sure that it
// won't show.
mSheetNeedsShow = false;
}
else {
// get sheet's parent *before* hiding the sheet (which breaks the linkage)
NSWindow* sheetParent = mSheetWindowParent;
// hide the sheet
[NSApp endSheet:mWindow];
[TopLevelWindowData deactivateInWindow:mWindow];
nsCocoaWindow* siblingSheetToShow = nsnull;
bool parentIsSheet = false;
if (nativeParentWindow && piParentWidget &&
NS_SUCCEEDED(piParentWidget->GetChildSheet(false, &siblingSheetToShow)) &&
siblingSheetToShow) {
// First, give sibling sheets an opportunity to show.
siblingSheetToShow->Show(true);
}
else if (nativeParentWindow && piParentWidget &&
NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) &&
parentIsSheet) {
// Only set contextInfo if the parent of the parent sheet we're about
// to restore isn't itself a sheet.
NSWindow* contextInfo = sheetParent;
nsIWidget* grandparentWidget = nil;
if (NS_SUCCEEDED(piParentWidget->GetRealParent(&grandparentWidget)) && grandparentWidget) {
nsCOMPtr<nsPIWidgetCocoa> piGrandparentWidget(do_QueryInterface(grandparentWidget));
bool grandparentIsSheet = false;
if (piGrandparentWidget && NS_SUCCEEDED(piGrandparentWidget->GetIsSheet(&grandparentIsSheet)) &&
grandparentIsSheet) {
contextInfo = nil;
}
}
// If there are no sibling sheets, but the parent is a sheet, restore
// it. It wasn't sent any deactivate events when it was hidden, so
// don't call through Show, just let the OS put it back up.
[NSApp beginSheet:nativeParentWindow
modalForWindow:sheetParent
modalDelegate:[nativeParentWindow delegate]
didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
contextInfo:contextInfo];
}
else {
// Sheet, that was hard. No more siblings or parents, going back
// to a real window.
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
[sheetParent makeKeyAndOrderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
}
SendSetZLevelEvent();
}
}
else {
// If the window is a popup window with a parent window we need to
// unhook it here before ordering it out. When you order out the child
// of a window it hides the parent window.
if (mWindowType == eWindowType_popup && nativeParentWindow)
[nativeParentWindow removeChildWindow:mWindow];
CleanUpWindowFilter();
[mWindow orderOut:nil];
// Unless it's explicitly removed from NSApp's "window cache", a popup
// window will keep receiving mouse-moved events even after it's been
// "ordered out" (instead of the browser window that was underneath it,
// until you click on that window). This is bmo bug 378645, but it's
// surely an Apple bug. The "window cache" is an undocumented subsystem,
// all of whose methods are included in the NSWindowCache category of
// the NSApplication class (in header files generated using class-dump).
// This workaround was "borrowed" from the Java Embedding Plugin (which
// uses it for a different purpose).
if (mWindowType == eWindowType_popup)
[NSApp _removeWindowFromCache:mWindow];
// If our popup window is a non-native context menu, tell the OS (and
// other programs) that a menu has closed.
if ([mWindow isKindOfClass:[PopupWindow class]] &&
[(PopupWindow*) mWindow isContextMenu]) {
[[NSDistributedNotificationCenter defaultCenter]
postNotificationName:@"com.apple.HIToolbox.endMenuTrackingNotification"
object:@"org.mozilla.gecko.PopupWindow"];
}
}
}
if (mPopupContentView)
mPopupContentView->Show(bState);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
struct ShadowParams {
float standardDeviation;
float density;
int offsetX;
int offsetY;
unsigned int flags;
};
// These numbers have been determined by looking at the results of
// CGSGetWindowShadowAndRimParameters for native window types.
static const ShadowParams kWindowShadowParameters[] = {
{ 0.0f, 0.0f, 0, 0, 0 }, // none
{ 8.0f, 0.5f, 0, 6, 1 }, // default
{ 10.0f, 0.44f, 0, 10, 512 }, // menu
{ 8.0f, 0.5f, 0, 6, 1 }, // tooltip
{ 4.0f, 0.6f, 0, 4, 512 } // sheet
};
// This method will adjust the window shadow style for popup windows after
// they have been made visible. Before they're visible, their window number
// might be -1, which is not useful.
// We won't attempt to change the shadow for windows that can acquire key state
// since OS X will reset the shadow whenever that happens.
void
nsCocoaWindow::AdjustWindowShadow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (![mWindow isVisible] || ![mWindow hasShadow] ||
[mWindow canBecomeKeyWindow] || [mWindow windowNumber] == -1)
return;
const ShadowParams& params = kWindowShadowParameters[mShadowStyle];
CGSConnection cid = _CGSDefaultConnection();
CGSSetWindowShadowAndRimParameters(cid, [mWindow windowNumber],
params.standardDeviation, params.density,
params.offsetX, params.offsetY,
params.flags);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
nsCocoaWindow::SetUpWindowFilter()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (![mWindow isVisible] || [mWindow windowNumber] == -1)
return;
CleanUpWindowFilter();
// Only blur the background of menus and fake sheets, but not on PPC
// because it results in blank windows (bug 547723).
#ifndef __ppc__
if (mShadowStyle != NS_STYLE_WINDOW_SHADOW_MENU &&
mShadowStyle != NS_STYLE_WINDOW_SHADOW_SHEET)
#endif
return;
// Create a CoreImage filter and set it up
CGSConnection cid = _CGSDefaultConnection();
CGSNewCIFilterByName(cid, (CFStringRef)@"CIGaussianBlur", &mWindowFilter);
NSDictionary *options = [NSDictionary dictionaryWithObject:[NSNumber numberWithFloat:2.0] forKey:@"inputRadius"];
CGSSetCIFilterValuesFromDictionary(cid, mWindowFilter, (CFDictionaryRef)options);
// Now apply the filter to the window
NSInteger compositingType = 1 << 0; // Under the window
CGSAddWindowFilter(cid, [mWindow windowNumber], mWindowFilter, compositingType);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
nsCocoaWindow::CleanUpWindowFilter()
{
if (!mWindowFilter || [mWindow windowNumber] == -1)
return;
CGSConnection cid = _CGSDefaultConnection();
CGSRemoveWindowFilter(cid, [mWindow windowNumber], mWindowFilter);
CGSReleaseCIFilter(cid, mWindowFilter);
mWindowFilter = 0;
}
nsresult
nsCocoaWindow::ConfigureChildren(const nsTArray<Configuration>& aConfigurations)
{
if (mPopupContentView) {
mPopupContentView->ConfigureChildren(aConfigurations);
}
return NS_OK;
}
LayerManager*
nsCocoaWindow::GetLayerManager(PLayersChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence,
bool* aAllowRetaining)
{
if (mPopupContentView) {
return mPopupContentView->GetLayerManager(aShadowManager,
aBackendHint,
aPersistence,
aAllowRetaining);
}
return nsnull;
}
nsTransparencyMode nsCocoaWindow::GetTransparencyMode()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
return [mWindow isOpaque] ? eTransparencyOpaque : eTransparencyTransparent;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(eTransparencyOpaque);
}
// This is called from nsMenuPopupFrame when making a popup transparent.
// For other window types, nsChildView::SetTransparencyMode is used.
void nsCocoaWindow::SetTransparencyMode(nsTransparencyMode aMode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
BOOL isTransparent = aMode == eTransparencyTransparent;
BOOL currentTransparency = ![mWindow isOpaque];
if (isTransparent != currentTransparency) {
[mWindow setOpaque:!isTransparent];
[mWindow setBackgroundColor:(isTransparent ? [NSColor clearColor] : [NSColor whiteColor])];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
NS_IMETHODIMP nsCocoaWindow::Enable(bool aState)
{
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::IsEnabled(bool *aState)
{
if (aState)
*aState = true;