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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebScreenInfoFactory.h"
#import <AppKit/AppKit.h>
#include "WebScreenInfo.h"
@interface NSWindow (LionAPI)
- (CGFloat)backingScaleFactor;
@end
@interface NSScreen (LionAPI)
- (CGFloat)backingScaleFactor;
@end
namespace WebKit {
static NSScreen* screenForWindow(NSWindow* window)
{
NSScreen* screen = [window screen]; // nil if the window is off-screen
if (screen)
return screen;
NSArray* screens = [NSScreen screens];
if ([screens count] > 0)
return [screens objectAtIndex:0]; // screen containing the menubar
return nil;
}
static WebRect convertRect(const NSRect& rect, NSWindow* destination)
{
CGRect userRect = NSRectToCGRect(rect);
userRect.origin.y =
NSMaxY([screenForWindow(destination) frame]) - NSMaxY(rect); // flip
return WebRect(userRect.origin.x,
userRect.origin.y,
userRect.size.width,
userRect.size.height);
}
static float deviceScaleFactor(NSView* view)
{
NSWindow* window = [view window];
if (window)
{
if ([window respondsToSelector:@selector(backingScaleFactor)])
return [window backingScaleFactor];
return [window userSpaceScaleFactor];
}
NSArray* screens = [NSScreen screens];
if (![screens count])
return 1;
NSScreen* screen = [screens objectAtIndex:0];
if ([screen respondsToSelector:@selector(backingScaleFactor)])
return [screen backingScaleFactor];
return [screen userSpaceScaleFactor];
}
WebScreenInfo WebScreenInfoFactory::screenInfo(NSView* view)
{
NSScreen* screen = [NSScreen deepestScreen];
WebScreenInfo results;
float deviceDPI = 160 * deviceScaleFactor(view);
results.horizontalDPI = deviceDPI;
results.verticalDPI = deviceDPI;
results.deviceScaleFactor = static_cast<int>(deviceScaleFactor(view));
results.depth = NSBitsPerPixelFromDepth([screen depth]);
results.depthPerComponent = NSBitsPerSampleFromDepth([screen depth]);
results.isMonochrome =
[[screen colorSpace] colorSpaceModel] == NSGrayColorSpaceModel;
results.rect = convertRect([screenForWindow([view window]) frame], [view window]);
results.availableRect =
convertRect([screenForWindow([view window]) visibleFrame], [view window]);
return results;
}
} // namespace WebKit
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