SIMBL 在查找器中旋转

Question

我设法将 Mac Os Finder 中的 Dropbox 中的图标覆盖层与 SIMBL 插件集成在一起！我使用旋转方法来覆盖一些查找器功能。

这是我的旋转方法：

void PluginSwizzleInstanceMethod(Class cls, SEL oldSel, SEL newSel) 
{
    Method mnew = class_getInstanceMethod(cls, newSel);
    Method mold = class_getInstanceMethod(cls, oldSel);
    method_exchangeImplementations(mnew, mold);
}

所以目前我像这样覆盖drawWithFrame方法：

Class cls = NSClassFromString(@"TIconAndTextCell");
SEL oldSel = @selector(drawWithFrame:inView:);
SEL newSel = @selector(PluginDrawWithFrame:inView:);
PluginSwizzleInstanceMethod(cls, oldSel, newSel);

我的所有图标都显示出来，但不显示在我的桌面上或将项目显示为图标的视图上......为什么？

谢谢

Answer 1

我刚刚设法为桌面做了一些事情，所以我会发布以防万一仍然与某人相关：

因此，正如您所经历的那样，Finder 在桌面上以不同的方式绘制图标。
负责这一点的一个类是TDesktopIcon。
例如，可以通过重写 drawIconInContext： 方法并将 thumbnailImage 属性设置为他喜欢的任何 NSImage* 来更改图标。

- (void) FO_drawIconInContext:(struct CGContext *)arg1 {
    NSImage *image;
    // set image... 
    [(TDesktopIcon*)self setThumbnailImage:image];
    [self FO_drawIconInContext:arg1];
}

获取每个项目的 url 并不像使用 TIconAndTextCell 或 IKImageBrowserCell 那样简单。

为了获取URL，您需要覆盖TDesktopViewController的prepareToDrawNode：方法。您可以从 arg1 获取 URL，如下所示：

- (void) FO_prepareToDrawNode:(const struct TFENode *)arg1 {
    struct OpaqueNodeRef *opr = arg1->fNodeRef;  
    struct FINode *fiNode = [FINode nodeFromNodeRef:opr];  
    NSURL *url = [fiNode previewItemURL];  
    // save url somewhere (I use NSUserDefaults) 
    [self FO_prepareToDrawNode:arg1];  
}  

也许有更好的方法，但这就是我想出的......

Answer 2

知道了！（此代码仅适用于 10.7）我遇到了问题，因为在最终图像渲染到缩略图之前正在绘制图标......所以我在缺少原始图标的地方得到了这些文物......但是覆盖层总是在那里...这是我错了抽奖操作的顺序...！

我什至有目标节点的名称...你需要 TFENodeHelper 类将 TFENode 转换为 filePath...

//
//  DesktopViewIconOverlay.h
//  FinderIconOverlayExample
//
//  Created by Orbitus007 on 2/20/13.
//
//
#import <Foundation/Foundation.h>
#import <Quartz/Quartz.h>
#import "Finder.h"
@interface DesktopViewIconOverlay : NSObject
+ (void)pluginLoad;
- (void) FO_prepareToDrawNode:(const struct TFENode *)arg1;
- (void) FO_drawIconInContext:(struct CGContext *)arg1;
@end
//
//  DesktopViewIconOverlay.m
//  FinderIconOverlayExample
//
//  Created by Orbitus007 on 2/20/13.
//
//
#import "DesktopViewIconOverlay.h"
#import "FinderIconOverlayExample.h"
#include <objc/objc.h>
#include <objc/runtime.h>
#import <Quartz/Quartz.h>
#import "TFENodeHelper.h"
static TFENodeHelper *gNodeHelper;


@implementation DesktopViewIconOverlay
+ (void)pluginLoad
{

    // Create helper object
    gNodeHelper = [[TFENodeHelper alloc] init];
    if (gNodeHelper == nil) {
        NSLog(@"Failed to instantiate 'TFENodeHelper' class");
        return;
    }

    Method old, new;
    Class self_class = [self class];
    Class finder_class = [objc_getClass("TDesktopIcon") class];
    class_addMethod(finder_class, @selector(FO_drawIconInContext:),
                    class_getMethodImplementation(self_class, @selector(FO_drawIconInContext:)),"v@:@");
    old = class_getInstanceMethod(finder_class, @selector(drawIconInContext:));
    new = class_getInstanceMethod(finder_class, @selector(FO_drawIconInContext:));
    method_exchangeImplementations(old, new);

    finder_class = [objc_getClass("TDesktopViewController") class];

    class_addMethod(finder_class, @selector(FO_prepareToDrawNode:),
                    class_getMethodImplementation(self_class, @selector(FO_prepareToDrawNode:)),"v@:@");
    old = class_getInstanceMethod(finder_class, @selector(prepareToDrawNode:));
    new = class_getInstanceMethod(finder_class, @selector(FO_prepareToDrawNode:));
    method_exchangeImplementations(old, new);
}

- (void) FO_prepareToDrawNode:(const struct TFENode *)arg1 {
    NSString *path = [gNodeHelper pathForNode:arg1];
    NSLog(@"Path = %@", path);
    [[NSUserDefaults standardUserDefaults] setValue:path forKey:@"TDesktopIconURL"];
    //struct OpaqueNodeRef *opr = arg1->fNodeRef;
    //NSLog(@"path = %@", [[FINode nodeWithFENode:arg1] fullPath]);
    //id fiNode = [FINode nodeFromNodeRef:opr];
    //NSURL *url = [fiNode previewItemURL];
    //[[NSUserDefaults standardUserDefaults] setValue:[url path] forKey:@"TDesktopIconURL"];
    //NSLog(@"sending ", arg1->fNodeRef);
    // save url somewhere (I use NSUserDefaults)
    [self FO_prepareToDrawNode:arg1];
}

- (void) FO_drawIconInContext:(struct CGContext *)arg1
{
    [self FO_drawIconInContext:arg1];
    NSString *iconPath = [[NSUserDefaults standardUserDefaults] valueForKey:@"TDesktopIconURL"];
    NSLog(@"recieved %@", iconPath);
    if (![iconPath isEqualToString:@"/Users/h0xff/Desktop/Restart Finder.app"])
        return;
    NSString *imagePath = @"/Users/h0xff/Desktop/020513_icons/128_synced_green.png";
    NSImage *overlay = [[NSImage alloc] initWithContentsOfFile:imagePath];
    NSImage *mainImage = [(TDesktopIcon*)self thumbnailImage];
    float width = 256.0;
    float height = 256.0;
    NSImage *finalImage = [[NSImage alloc] initWithSize:NSMakeSize(width, height)];
    [finalImage lockFocus];
    // draw the base image
    [mainImage drawInRect:NSMakeRect(0, 0, width, height)
                 fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0];
    // draw the overlay image at some offset point
    [overlay drawInRect:NSMakeRect(0, 0, [overlay size].width/1.5, [overlay size].height/1.5)
               fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0];
    [finalImage unlockFocus];

    // set image...
    [(TDesktopIcon*)self setThumbnailImage:finalImage];
    [self FO_drawIconInContext:arg1];
}
@end

这段代码源自阿列克谢·朱奇科夫和许多其他人。如果您有任何问题，请提出问题！

//
//  TFENodeHelper.h
//  FinderMenu
//
//  Helper class to get full path from TFENode
//
//  Created by Alexey Zhuchkov on 11/4/12.
//  Copyright (c) 2012 InfiniteLabs. All rights reserved.
//
#import <Foundation/Foundation.h>
// Forward declarations
struct TFENode;
typedef enum {
    TFENodeCtorTypeUnknown,
    TFENodeCtorTypeNodeWithFENode,  // nodeWithFENode
    TFENodeCtorTypeNodeFromNodeRef,  // nodeFromNodeRef
} TFENodeCtorType;
typedef enum {
    TFENodePathMethodTypeUnknown,
    TFENodePathMethodTypeFullPath,  // fullPath
    TFENodePathMethodTypePreviewItemURL,  // previewItemURL
} TFENodePathMethodType;
@interface TFENodeHelper : NSObject {
    @private
    Class _class;
    TFENodeCtorType _ctorType;
    TFENodePathMethodType _pathMethodType;
}
- (NSString *)pathForNode:(const struct TFENode *)node;
@end

//
//  TFENodeHelper.m
//  FinderMenu
//
//  Created by Alexey Zhuchkov on 11/4/12.
//  Copyright (c) 2012 InfiniteLabs. All rights reserved.
//
#import "TFENodeHelper.h"
#import <objc/runtime.h>
#import "Finder.h"
@implementation TFENodeHelper
- (id)init {
    self = [super init];
    if (self) {
        _class = NSClassFromString(@"FINode");
        _ctorType = TFENodeCtorTypeUnknown;
        _pathMethodType = TFENodePathMethodTypeUnknown;
        if (_class) {
            if (class_getClassMethod(_class, @selector(nodeWithFENode:))) {
                _ctorType = TFENodeCtorTypeNodeWithFENode;
            } else if (class_getClassMethod(_class, @selector(nodeFromNodeRef:))) {
                _ctorType = TFENodeCtorTypeNodeFromNodeRef;
            }
            if (class_getInstanceMethod(_class, @selector(fullPath))) {
                _pathMethodType = TFENodePathMethodTypeFullPath;
            } else if (class_getInstanceMethod(_class, @selector(previewItemURL))) {
                _pathMethodType = TFENodePathMethodTypePreviewItemURL;
            }
        }
        if (!_class
            || (_ctorType == TFENodePathMethodTypeUnknown)
            || (_pathMethodType == TFENodePathMethodTypeUnknown)) {
            [self release];
            return nil;
        }
    }
    return self;
}
- (NSString *)pathForNode:(const struct TFENode *)node {
    FINode *fiNode = nil;
    NSString *path = nil;
    switch (_ctorType) {
        case TFENodeCtorTypeNodeWithFENode:
            fiNode = [_class nodeWithFENode:node];
            break;
        case TFENodeCtorTypeNodeFromNodeRef:
            fiNode = [_class nodeFromNodeRef:node->fNodeRef];
            break;
        default:
            break;
    }
    NSURL *url;
    if (fiNode) {
        switch (_pathMethodType) {
            case TFENodePathMethodTypeFullPath:
                path = [fiNode fullPath];
                break;
            case TFENodePathMethodTypePreviewItemURL:
                url = [fiNode previewItemURL];
                path = [url path];
            default:
                break;
        }
    }
    return path;
}
@end