Cocoa webkit：如何在 webkit 中获取文件上传/文件系统访问权限

Question

我从 WebKit 框架创建了一个自定义浏览器。我几乎把所有东西都设置好了。

但是，当我访问带有文件上传的网页（比如 flickr）时，当我按下“上传”按钮时没有任何反应。通常这会在 safari/firefox/.. 中弹出一个窗口。

我需要什么才能让文件上传以在 Cocoa 中使用 WebKit？ NSFileHandler，NSFileManager？我该怎么做？

问候， 弗里斯加德

Answer 1

好吧，我自己想通了。

在一个类中实现以下方法。在 Interface Builder 中将 WebView 的类设置为 UIDelegate。

（如何使用NSOpenPanel 我在这里找到： http://ekle.us/index.php/2006/12/displaying_a_file_open_dialog_in_cocoa_w )

- (void)webView:(WebView *)sender runOpenPanelForFileButtonWithResultListener:(id < WebOpenPanelResultListener >)resultListener
{       
    // Create the File Open Dialog class.
    NSOpenPanel* openDlg = [NSOpenPanel openPanel];

    // Enable the selection of files in the dialog.
    [openDlg setCanChooseFiles:YES];

    // Enable the selection of directories in the dialog.
    [openDlg setCanChooseDirectories:NO];

    // Display the dialog.  If the OK button was pressed,
    // process the files.
    if ( [openDlg runModalForDirectory:nil file:nil] == NSOKButton )
    {
        // Get an array containing the full filenames of all
        // files and directories selected.
        NSArray* files = [openDlg filenames];

        // Loop through all the files and process them.
        //for(int i = 0; i < [files count]; i++ )
        {
            NSString* fileName = [files objectAtIndex:0]; //i]; 
            // Do something with the filename.
            [resultListener chooseFilename:fileName]; 
        }
    }

}

ps。对多个文件使用[resultListener chooseFilenames:...]

Answer 2

随着表单部分的折旧，我通过稍微改变它来让它工作：

- (void)webView:(WebView *)sender runOpenPanelForFileButtonWithResultListener:(id < WebOpenPanelResultListener >)resultListener
{       
    // Create the File Open Dialog class.
    NSOpenPanel* openDlg = [NSOpenPanel openPanel];

    // Enable the selection of files in the dialog.
    [openDlg setCanChooseFiles:YES];

    // Enable the selection of directories in the dialog.
    [openDlg setCanChooseDirectories:NO];

    if ( [openDlg runModal] == NSOKButton )
    {
        NSArray* URLs = [openDlg URLs];
        NSMutableArray *files = [[NSMutableArray alloc]init];
        for (int i = 0; i <[URLs count]; i++) {
            NSString *filename = [[URLs objectAtIndex:i]relativePath];
            [files addObject:filename];
        }

        for(int i = 0; i < [files count]; i++ )
        {
            NSString* fileName = [files objectAtIndex:i];
            [resultListener chooseFilename:fileName]; 
        }
        [files release];
    }

}