The act of transferring non-textual information into web-based applications

Is it possible for a user to copy and paste a selection of pixels from MSPaint into a browser-based app using JavaScript in current browsers? If not, will HTML5 make this possible in the future? Alternatively, could something like Flex or Silverlight be used for this purpose, or is manual file upload the only option at this time?

Update: It seems like HTML5 may offer a solution, but its full functionality is still a long way off. Some have suggested using Java applets or Flash, with Flash being the preferred choice as parts of the web-client are likely to use Flex anyways. I would prefer to avoid requiring both Java and Flash on my site.

javascriptapache-flexsilverlightcopy-paste

Answer №1

Exploring the topic further, there is an in-depth analysis of a previous inquiry: Wysiwyg with image copy/paste. It delves into potential upcoming features in HTML5, along with solutions involving Flash, and Java applet that interface with the clipboard for integration with JavaScript.

The individual inquiring about Zeroclipboard's relevance can examine the file ZeroClipboard10.as to observe that the click handler supports two data formats:

private function clickHandler(event:Event):void {
    // user click copies text to clipboard
    // as of flash player 10, this MUST happen from an in-movie flash click event
    Clipboard.generalClipboard.clear();
    Clipboard.generalClipboard.setData(ClipboardFormats.TEXT_FORMAT, clipText);
    Clipboard.generalClipboard.setData(ClipboardFormats.HTML_FORMAT, clipText);
    ExternalInterface.call( 'ZeroClipboard.dispatch', id, 'complete', clipText );
}

Reviewing the documentation for ActionScript's ClipboardFormats constant reveals that one format is a BITMAP_FORMAT. This could serve as a solid starting point.

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