зеркало из https://github.com/mozilla/gecko-dev.git
491 строка
16 KiB
Plaintext
491 строка
16 KiB
Plaintext
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxImageSurface.h"
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#include "nsCocoaUtils.h"
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#include "nsChildView.h"
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#include "nsMenuBarX.h"
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#include "nsCocoaWindow.h"
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#include "nsCOMPtr.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIAppShellService.h"
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#include "nsIXULWindow.h"
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#include "nsIBaseWindow.h"
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#include "nsIServiceManager.h"
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#include "nsMenuUtilsX.h"
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#include "nsToolkit.h"
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#include "nsGUIEvent.h"
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using namespace mozilla::widget;
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float nsCocoaUtils::MenuBarScreenHeight()
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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NSArray* allScreens = [NSScreen screens];
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if ([allScreens count])
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return [[allScreens objectAtIndex:0] frame].size.height;
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else
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return 0.0; // If there are no screens, there's not much we can say.
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0.0);
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}
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float nsCocoaUtils::FlippedScreenY(float y)
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{
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return MenuBarScreenHeight() - y;
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}
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NSRect nsCocoaUtils::GeckoRectToCocoaRect(const nsIntRect &geckoRect)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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// We only need to change the Y coordinate by starting with the primary screen
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// height, subtracting the gecko Y coordinate, and subtracting the height.
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return NSMakeRect(geckoRect.x,
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MenuBarScreenHeight() - (geckoRect.y + geckoRect.height),
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geckoRect.width,
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geckoRect.height);
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakeRect(0.0, 0.0, 0.0, 0.0));
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}
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nsIntRect nsCocoaUtils::CocoaRectToGeckoRect(const NSRect &cocoaRect)
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{
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// We only need to change the Y coordinate by starting with the primary screen
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// height and subtracting both the cocoa y origin and the height of the
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// cocoa rect.
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nsIntRect rect;
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rect.x = NSToIntRound(cocoaRect.origin.x);
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rect.y = NSToIntRound(FlippedScreenY(cocoaRect.origin.y + cocoaRect.size.height));
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rect.width = NSToIntRound(cocoaRect.origin.x + cocoaRect.size.width) - rect.x;
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rect.height = NSToIntRound(FlippedScreenY(cocoaRect.origin.y)) - rect.y;
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return rect;
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}
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NSPoint nsCocoaUtils::ScreenLocationForEvent(NSEvent* anEvent)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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// Don't trust mouse locations of mouse move events, see bug 443178.
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if (!anEvent || [anEvent type] == NSMouseMoved)
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return [NSEvent mouseLocation];
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// Pin momentum scroll events to the location of the last user-controlled
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// scroll event.
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if (IsMomentumScrollEvent(anEvent))
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return ChildViewMouseTracker::sLastScrollEventScreenLocation;
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return [[anEvent window] convertBaseToScreen:[anEvent locationInWindow]];
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakePoint(0.0, 0.0));
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}
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BOOL nsCocoaUtils::IsEventOverWindow(NSEvent* anEvent, NSWindow* aWindow)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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return NSPointInRect(ScreenLocationForEvent(anEvent), [aWindow frame]);
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
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}
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NSPoint nsCocoaUtils::EventLocationForWindow(NSEvent* anEvent, NSWindow* aWindow)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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return [aWindow convertScreenToBase:ScreenLocationForEvent(anEvent)];
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakePoint(0.0, 0.0));
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}
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BOOL nsCocoaUtils::IsMomentumScrollEvent(NSEvent* aEvent)
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{
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if ([aEvent type] != NSScrollWheel)
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return NO;
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if ([aEvent respondsToSelector:@selector(momentumPhase)])
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return ([aEvent momentumPhase] & NSEventPhaseChanged) != 0;
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if ([aEvent respondsToSelector:@selector(_scrollPhase)])
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return [aEvent _scrollPhase] != 0;
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return NO;
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}
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void nsCocoaUtils::HideOSChromeOnScreen(bool aShouldHide, NSScreen* aScreen)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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// Keep track of how many hiding requests have been made, so that they can
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// be nested.
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static int sMenuBarHiddenCount = 0, sDockHiddenCount = 0;
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// Always hide the Dock, since it's not necessarily on the primary screen.
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sDockHiddenCount += aShouldHide ? 1 : -1;
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NS_ASSERTION(sMenuBarHiddenCount >= 0, "Unbalanced HideMenuAndDockForWindow calls");
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// Only hide the menu bar if the window is on the same screen.
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// The menu bar is always on the first screen in the screen list.
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if (aScreen == [[NSScreen screens] objectAtIndex:0]) {
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sMenuBarHiddenCount += aShouldHide ? 1 : -1;
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NS_ASSERTION(sDockHiddenCount >= 0, "Unbalanced HideMenuAndDockForWindow calls");
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}
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// TODO This should be upgraded to use [NSApplication setPresentationOptions:]
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// when support for 10.5 is dropped.
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if (sMenuBarHiddenCount > 0) {
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::SetSystemUIMode(kUIModeAllHidden, 0);
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} else if (sDockHiddenCount > 0) {
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::SetSystemUIMode(kUIModeContentHidden, 0);
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} else {
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::SetSystemUIMode(kUIModeNormal, 0);
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}
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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#define NS_APPSHELLSERVICE_CONTRACTID "@mozilla.org/appshell/appShellService;1"
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nsIWidget* nsCocoaUtils::GetHiddenWindowWidget()
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{
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nsCOMPtr<nsIAppShellService> appShell(do_GetService(NS_APPSHELLSERVICE_CONTRACTID));
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if (!appShell) {
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NS_WARNING("Couldn't get AppShellService in order to get hidden window ref");
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return nsnull;
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}
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nsCOMPtr<nsIXULWindow> hiddenWindow;
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appShell->GetHiddenWindow(getter_AddRefs(hiddenWindow));
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if (!hiddenWindow) {
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// Don't warn, this happens during shutdown, bug 358607.
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return nsnull;
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}
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nsCOMPtr<nsIBaseWindow> baseHiddenWindow;
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baseHiddenWindow = do_GetInterface(hiddenWindow);
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if (!baseHiddenWindow) {
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NS_WARNING("Couldn't get nsIBaseWindow from hidden window (nsIXULWindow)");
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return nsnull;
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}
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nsCOMPtr<nsIWidget> hiddenWindowWidget;
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if (NS_FAILED(baseHiddenWindow->GetMainWidget(getter_AddRefs(hiddenWindowWidget)))) {
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NS_WARNING("Couldn't get nsIWidget from hidden window (nsIBaseWindow)");
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return nsnull;
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}
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return hiddenWindowWidget;
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}
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void nsCocoaUtils::PrepareForNativeAppModalDialog()
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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// Don't do anything if this is embedding. We'll assume that if there is no hidden
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// window we shouldn't do anything, and that should cover the embedding case.
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nsMenuBarX* hiddenWindowMenuBar = nsMenuUtilsX::GetHiddenWindowMenuBar();
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if (!hiddenWindowMenuBar)
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return;
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// First put up the hidden window menu bar so that app menu event handling is correct.
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hiddenWindowMenuBar->Paint();
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NSMenu* mainMenu = [NSApp mainMenu];
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NS_ASSERTION([mainMenu numberOfItems] > 0, "Main menu does not have any items, something is terribly wrong!");
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// Create new menu bar for use with modal dialog
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NSMenu* newMenuBar = [[NSMenu alloc] initWithTitle:@""];
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// Swap in our app menu. Note that the event target is whatever window is up when
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// the app modal dialog goes up.
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NSMenuItem* firstMenuItem = [[mainMenu itemAtIndex:0] retain];
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[mainMenu removeItemAtIndex:0];
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[newMenuBar insertItem:firstMenuItem atIndex:0];
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[firstMenuItem release];
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// Add standard edit menu
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[newMenuBar addItem:nsMenuUtilsX::GetStandardEditMenuItem()];
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// Show the new menu bar
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[NSApp setMainMenu:newMenuBar];
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[newMenuBar release];
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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void nsCocoaUtils::CleanUpAfterNativeAppModalDialog()
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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// Don't do anything if this is embedding. We'll assume that if there is no hidden
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// window we shouldn't do anything, and that should cover the embedding case.
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nsMenuBarX* hiddenWindowMenuBar = nsMenuUtilsX::GetHiddenWindowMenuBar();
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if (!hiddenWindowMenuBar)
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return;
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NSWindow* mainWindow = [NSApp mainWindow];
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if (!mainWindow)
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hiddenWindowMenuBar->Paint();
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else
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[WindowDelegate paintMenubarForWindow:mainWindow];
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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nsresult nsCocoaUtils::CreateCGImageFromSurface(gfxImageSurface *aFrame, CGImageRef *aResult)
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{
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PRInt32 width = aFrame->Width();
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PRInt32 stride = aFrame->Stride();
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PRInt32 height = aFrame->Height();
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if ((stride % 4 != 0) || (height < 1) || (width < 1)) {
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return NS_ERROR_FAILURE;
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}
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// Create a CGImageRef with the bits from the image, taking into account
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// the alpha ordering and endianness of the machine so we don't have to
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// touch the bits ourselves.
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CGDataProviderRef dataProvider = ::CGDataProviderCreateWithData(NULL,
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aFrame->Data(),
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stride * height,
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NULL);
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CGColorSpaceRef colorSpace = ::CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
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*aResult = ::CGImageCreate(width,
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height,
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8,
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32,
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stride,
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colorSpace,
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kCGBitmapByteOrder32Host | kCGImageAlphaFirst,
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dataProvider,
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NULL,
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0,
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kCGRenderingIntentDefault);
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::CGColorSpaceRelease(colorSpace);
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::CGDataProviderRelease(dataProvider);
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return *aResult ? NS_OK : NS_ERROR_FAILURE;
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}
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nsresult nsCocoaUtils::CreateNSImageFromCGImage(CGImageRef aInputImage, NSImage **aResult)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
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PRInt32 width = ::CGImageGetWidth(aInputImage);
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PRInt32 height = ::CGImageGetHeight(aInputImage);
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NSRect imageRect = ::NSMakeRect(0.0, 0.0, width, height);
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// Create a new image to receive the Quartz image data.
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*aResult = [[NSImage alloc] initWithSize:imageRect.size];
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[*aResult lockFocus];
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// Get the Quartz context and draw.
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CGContextRef imageContext = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
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::CGContextDrawImage(imageContext, *(CGRect*)&imageRect, aInputImage);
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[*aResult unlockFocus];
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return NS_OK;
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NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
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}
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nsresult nsCocoaUtils::CreateNSImageFromImageContainer(imgIContainer *aImage, PRUint32 aWhichFrame, NSImage **aResult)
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{
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nsRefPtr<gfxImageSurface> frame;
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nsresult rv = aImage->CopyFrame(aWhichFrame,
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imgIContainer::FLAG_SYNC_DECODE,
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getter_AddRefs(frame));
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if (NS_FAILED(rv) || !frame) {
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return NS_ERROR_FAILURE;
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}
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CGImageRef imageRef = NULL;
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rv = nsCocoaUtils::CreateCGImageFromSurface(frame, &imageRef);
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if (NS_FAILED(rv) || !imageRef) {
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return NS_ERROR_FAILURE;
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}
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rv = nsCocoaUtils::CreateNSImageFromCGImage(imageRef, aResult);
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if (NS_FAILED(rv) || !aResult) {
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return NS_ERROR_FAILURE;
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}
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::CGImageRelease(imageRef);
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return NS_OK;
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}
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// static
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void
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nsCocoaUtils::GetStringForNSString(const NSString *aSrc, nsAString& aDist)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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if (!aSrc) {
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aDist.Truncate();
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return;
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}
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aDist.SetLength([aSrc length]);
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[aSrc getCharacters: aDist.BeginWriting()];
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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// static
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NSString*
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nsCocoaUtils::ToNSString(const nsAString& aString)
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{
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return [NSString stringWithCharacters:aString.BeginReading()
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length:aString.Length()];
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}
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// static
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void
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nsCocoaUtils::GeckoRectToNSRect(const nsIntRect& aGeckoRect,
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NSRect& aOutCocoaRect)
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{
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aOutCocoaRect.origin.x = aGeckoRect.x;
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aOutCocoaRect.origin.y = aGeckoRect.y;
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aOutCocoaRect.size.width = aGeckoRect.width;
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aOutCocoaRect.size.height = aGeckoRect.height;
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}
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// static
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NSEvent*
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nsCocoaUtils::MakeNewCocoaEventWithType(NSEventType aEventType, NSEvent *aEvent)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
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NSEvent* newEvent =
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[NSEvent keyEventWithType:aEventType
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location:[aEvent locationInWindow]
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modifierFlags:[aEvent modifierFlags]
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timestamp:[aEvent timestamp]
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windowNumber:[aEvent windowNumber]
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context:[aEvent context]
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characters:[aEvent characters]
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charactersIgnoringModifiers:[aEvent charactersIgnoringModifiers]
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isARepeat:[aEvent isARepeat]
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keyCode:[aEvent keyCode]];
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return newEvent;
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NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
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}
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// static
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void
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nsCocoaUtils::InitNPCocoaEvent(NPCocoaEvent* aNPCocoaEvent)
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{
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memset(aNPCocoaEvent, 0, sizeof(NPCocoaEvent));
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}
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// static
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void
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nsCocoaUtils::InitPluginEvent(nsPluginEvent &aPluginEvent,
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NPCocoaEvent &aCocoaEvent)
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{
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aPluginEvent.time = PR_IntervalNow();
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aPluginEvent.pluginEvent = (void*)&aCocoaEvent;
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aPluginEvent.retargetToFocusedDocument = false;
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}
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// static
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void
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nsCocoaUtils::InitInputEvent(nsInputEvent &aInputEvent,
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NSEvent* aNativeEvent)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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NSUInteger modifiers =
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aNativeEvent ? [aNativeEvent modifierFlags] : GetCurrentModifiers();
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InitInputEvent(aInputEvent, modifiers);
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aInputEvent.time = PR_IntervalNow();
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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// static
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void
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nsCocoaUtils::InitInputEvent(nsInputEvent &aInputEvent,
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NSUInteger aModifiers)
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{
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aInputEvent.modifiers = 0;
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if (aModifiers & NSShiftKeyMask) {
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aInputEvent.modifiers |= MODIFIER_SHIFT;
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}
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if (aModifiers & NSControlKeyMask) {
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aInputEvent.modifiers |= MODIFIER_CONTROL;
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}
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if (aModifiers & NSAlternateKeyMask) {
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aInputEvent.modifiers |= MODIFIER_ALT;
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// Mac's option key is similar to other platforms' AltGr key.
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// Let's set AltGr flag when option key is pressed for consistency with
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// other platforms.
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aInputEvent.modifiers |= MODIFIER_ALTGRAPH;
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}
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if (aModifiers & NSCommandKeyMask) {
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aInputEvent.modifiers |= MODIFIER_META;
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}
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if (aModifiers & NSAlphaShiftKeyMask) {
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aInputEvent.modifiers |= MODIFIER_CAPSLOCK;
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}
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// Mac doesn't have NumLock key. We can assume that NumLock is always locked
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// if user is using a keyboard which has numpad. Otherwise, if user is using
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// a keyboard which doesn't have numpad, e.g., MacBook's keyboard, we can
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// assume that NumLock is always unlocked.
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// Unfortunately, we cannot know whether current keyboard has numpad or not.
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// We should notify locked state only when keys in numpad are pressed.
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// By this, web applications may not be confused by unexpected numpad key's
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// key event with unlocked state.
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if (aModifiers & NSNumericPadKeyMask) {
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aInputEvent.modifiers |= MODIFIER_NUMLOCK;
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}
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// Be aware, NSFunctionKeyMask is included when arrow keys, home key or some
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// other keys are pressed. We cannot check whether 'fn' key is pressed or
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// not by the flag.
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}
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// static
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NSUInteger
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nsCocoaUtils::GetCurrentModifiers()
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{
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// NOTE: [[NSApp currentEvent] modifiers] isn't useful because it sometime 0
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// and we cannot check if it's actual state.
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if (nsCocoaFeatures::OnSnowLeopardOrLater()) {
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// XXX [NSEvent modifierFlags] returns "current" modifier state, so,
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// it's not event-queue-synchronized. GetCurrentEventKeyModifiers()
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// might be better, but it's Carbon API, we shouldn't use it as far as
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// possible.
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return [NSEvent modifierFlags];
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}
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// If [NSEvent modifierFlags] isn't available, use carbon API.
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// GetCurrentEventKeyModifiers() might be better?
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// It's event-queue-synchronized.
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UInt32 carbonModifiers = ::GetCurrentKeyModifiers();
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NSUInteger cocoaModifiers = 0;
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if (carbonModifiers & alphaLock) {
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cocoaModifiers |= NSAlphaShiftKeyMask;
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}
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if (carbonModifiers & (controlKey | rightControlKey)) {
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cocoaModifiers |= NSControlKeyMask;
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}
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if (carbonModifiers & (optionKey | rightOptionKey)) {
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cocoaModifiers |= NSAlternateKeyMask;
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}
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if (carbonModifiers & (shiftKey | rightShiftKey)) {
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cocoaModifiers |= NSShiftKeyMask;
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}
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if (carbonModifiers & cmdKey) {
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cocoaModifiers |= NSCommandKeyMask;
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}
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return cocoaModifiers;
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}
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