macos - OSX cocoa 应用程序 - 获取 safari 选项卡信息

Question

我想知道是否可以通过编程方式从 safari 获取任何选项卡/窗口信息？

有库可以做到这一点吗？

我不喜欢 applescript，因为我发现 - 我想知道它在 Cocoa 框架中是否可行以及如何实现。

Answer 1

您可以使用Scripting Bridge来做到这一点，就像 AppleScript 翻译成 Objective-C，或者用 accessibility objects ，您可以使用开发人员工具辅助功能检查器进行检查。这两种技术都有其怪癖，并且没有很好的记录。

编辑:

脚本桥示例:

SafariApplication *SafariApp = [SBApplication applicationWithBundleIdentifier:@"com.apple.Safari"];
for (SafariWindow *window in SafariApp.windows)
{
    for (SafariTab *tab in window.tabs)
        NSLog(@"%@", tab.name);
}

Safari 中辅助功能对象的层次结构是

AXApplication
 AXWindow
  AXTabGroup
   AXRadioButton

示例(未在选美比赛中获奖):

static NSArray *getAXUIElements(AXUIElementRef theContainer, CFStringRef theRole)
{
    // get children of theContainer
    AXError error;
    NSMutableArray *array = [NSMutableArray array];
    CFTypeRef children;
    error = AXUIElementCopyAttributeValue(theContainer, kAXChildrenAttribute, &children);
    if (error != kAXErrorSuccess)
        return nil;
    // filter children whose role is theRole
    for (CFIndex i = 0; i < CFArrayGetCount(children); i++)
    {
        AXUIElementRef child = CFArrayGetValueAtIndex(children, i);
        CFTypeRef role;
        error = AXUIElementCopyAttributeValue(child, kAXRoleAttribute, &role);
        if (error == kAXErrorSuccess)
        {
            if (CFStringCompare(role, theRole, 0) == kCFCompareEqualTo)
                [array addObject:(__bridge id)child];
            CFRelease(role);
        }
    }
    CFRelease(children);
    return [NSArray arrayWithArray:array];
}

static void logTabs()
{
    // get the title of every tab of every window of Safari
    NSArray *appArray = [NSRunningApplication runningApplicationsWithBundleIdentifier:@"com.apple.Safari"];
    AXUIElementRef SafariApp = AXUIElementCreateApplication([[appArray objectAtIndex:0] processIdentifier]);
    if (SafariApp)
    {
        NSArray *windowArray = getAXUIElements(SafariApp, kAXWindowRole);
        for (id window in windowArray)
        {
            NSArray *tabGroupArray = getAXUIElements((__bridge AXUIElementRef)(window), kAXTabGroupRole);
            for (id tabGroup in tabGroupArray)
            {
                NSArray *radioButtonArray = getAXUIElements((__bridge AXUIElementRef)(tabGroup), kAXRadioButtonRole);
                for (id radioButton in radioButtonArray)
                {
                    CFTypeRef title = NULL;
                    AXError error = AXUIElementCopyAttributeValue((__bridge AXUIElementRef)radioButton, kAXTitleAttribute, &title);
                    if (error == kAXErrorSuccess)
                    {
                        NSLog(@"%@", title);
                        CFRelease(title);
                    }
                }
            }
        }
        CFRelease(SafariApp);
    }
}