在我的COCOA应用程序中,我实现了一个自定义的无边框窗口。窗口的内容区域完全由WebView覆盖。当用户点击并将鼠标拖动到内容区域的任何位置时,我希望此无边框窗口移动。我尝试重写isMovableByWindowBackground但没有用。我该如何解决这个问题?
答案 0 :(得分:2)
在WebView上调用-setMovableByWindowBackround:YES并使窗口纹理化可能有效。
答案 1 :(得分:2)
这就是我做到的。
#import "BorderlessWindow.h"
@implementation BorderlessWindow
@synthesize initialLocation;
- (id)initWithContentRect:(NSRect)contentRect
styleMask:(NSUInteger)windowStyle
backing:(NSBackingStoreType)bufferingType
defer:(BOOL)deferCreation
{
if((self = [super initWithContentRect:contentRect
styleMask:NSBorderlessWindowMask
backing:NSBackingStoreBuffered
defer:NO]))
{
return self;
}
return nil;
}
- (BOOL) canBecomeKeyWindow
{
return YES;
}
- (BOOL) acceptsFirstResponder
{
return YES;
}
- (NSTimeInterval)animationResizeTime:(NSRect)newWindowFrame
{
return 0.1;
}
- (void)sendEvent:(NSEvent *)theEvent
{
if([theEvent type] == NSKeyDown)
{
if([theEvent keyCode] == 36)
return;
}
if([theEvent type] == NSLeftMouseDown)
[self mouseDown:theEvent];
else if([theEvent type] == NSLeftMouseDragged)
[self mouseDragged:theEvent];
[super sendEvent:theEvent];
}
- (void)mouseDown:(NSEvent *)theEvent
{
self.initialLocation = [theEvent locationInWindow];
}
- (void)mouseDragged:(NSEvent *)theEvent
{
NSRect screenVisibleFrame = [[NSScreen mainScreen] visibleFrame];
NSRect windowFrame = [self frame];
NSPoint newOrigin = windowFrame.origin;
NSPoint currentLocation = [theEvent locationInWindow];
if(initialLocation.y > windowFrame.size.height - 40)
{
newOrigin.x += (currentLocation.x - initialLocation.x);
newOrigin.y += (currentLocation.y - initialLocation.y);
if ((newOrigin.y + windowFrame.size.height) > (screenVisibleFrame.origin.y + screenVisibleFrame.size.height))
{
newOrigin.y = screenVisibleFrame.origin.y + (screenVisibleFrame.size.height - windowFrame.size.height);
}
[self setFrameOrigin:newOrigin];
}
}
@end
和.h文件:
#import <Cocoa/Cocoa.h>
@interface BorderlessWindow : NSWindow {
NSPoint initialLocation;
}
- (id)initWithContentRect:(NSRect)contentRect
styleMask:(NSUInteger)windowStyle
backing:(NSBackingStoreType)bufferingType
defer:(BOOL)deferCreation;
@property (assign) NSPoint initialLocation;
@end
答案 2 :(得分:0)
由于这是Google的热门话题...所提供的方法对我不起作用,因为WKWebView在鼠标事件到达窗口之前就将其拦截。相反,我不得不创建WKWebView的子类并在那里进行工作(以Apple's Photo Editor/WindowDraggableButton.swift示例为例)。
我使用Xamarin,但是代码非常简单...这里是重要的一点:
// How far from the top of the window you are allowed to grab the window
// to begin the drag...the title bar height, basically
public Int32 DraggableAreaHeight { get; set; } = 28;
public override void MouseDown(NSEvent theEvent)
{
base.MouseDown(theEvent);
var clickLocation = theEvent.LocationInWindow;
var windowHeight = Window.Frame.Height;
if (clickLocation.Y > (windowHeight - DraggableAreaHeight))
_dragShouldRepositionWindow = true;
}
public override void MouseUp(NSEvent theEvent)
{
base.MouseUp(theEvent);
_dragShouldRepositionWindow = false;
}
public override void MouseDragged(NSEvent theEvent)
{
base.MouseDragged(theEvent);
if (_dragShouldRepositionWindow)
{
this.Window.PerformWindowDrag(theEvent);
}
}
答案 3 :(得分:0)
@starkos在https://stackoverflow.com/a/54987061/140927提供了正确的答案以下是WKWebView子类中的ObjC实现:
BOOL _dragShouldRepositionWindow = NO;
- (void)mouseDown:(NSEvent *)event {
[super mouseDown:event];
NSPoint loc = event.locationInWindow;
CGFloat height = self.window.frame.size.height;
if (loc.y > height - 28) {
_dragShouldRepositionWindow = YES;
}
}
- (void)mouseUp:(NSEvent *)event {
[super mouseUp:event];
_dragShouldRepositionWindow = NO;
}
- (void)mouseDragged:(NSEvent *)event {
[super mouseDragged:event];
if (_dragShouldRepositionWindow) {
[self.window performWindowDragWithEvent:event];
}
}
有关如何操作标题栏的更多信息,请参见https://github.com/lukakerr/NSWindowStyles