Well if I remember correctly it is not supposed to access the clipboard
directly because that would be a huge security issue.
Consider the following scenario. You copy / paste your password for your
bank somewhere. Then you go to a random webpage. If the javascript of this
webpage that runs on your computer/browser could access
(getClipboardData()) your clipboard your bank password would be compromised.
So you can only access the clipboard from inside an event handler that
handles the "copy" event aka Ctrl+C.
The necessary details to access the data differ from IE and so I have
posted examples.
I do not know why your code does not compile. I think native methods are
not checked so they tend to give NULL errors during runtime. If that is
your case then caniuse is your friend.
Vassilis
On Thu, Oct 20, 2022 at 11:12 AM Pramod Patil <patil.pramo...@gmail.com>
wrote:
> Hi Thanks for your response,
> on both front at GWT and Javascript I am at beginners level, will it be
> possible to have modification in below function, which will
> support copyclipboard functionality with Microsoft Edge. I tried
> navigator.clipboard.writeText() but code is not getting compiled.
> public static native String getClipboardData()/*-{
> i*f($wnd.clipboardData && clipboardData.setData){*
> *return $wnd.clipboardData.getData('Text');*
> }
>
> On Thu, Oct 20, 2022 at 12:36 PM Vassilis Virvilis <vasv...@gmail.com>
> wrote:
>
>> For non IE browsers I have this:
>>
>> // attach event listeners
>> // copy - cut - paste handlers
>> ((Element) Js.cast(getElement())).addEventListener("copy",
>> copy_li);
>> ((Element) Js.cast(getElement())).addEventListener("cut",
>> cut_li);
>> ((Element) Js.cast(getElement())).addEventListener("paste",
>> paste_li);
>>
>> where (Element) is elemental2.dom.Element
>>
>> copy_li is something like this:
>>
>> final elemental2.dom.EventListener copy_li = new
>> elemental2.dom.EventListener() {
>> @Override
>> public void handleEvent(elemental2.dom.Event evt) {
>> final ClipboardEvent event = Js.cast(evt);
>> copy(event);
>> }
>> };
>>
>> where ClipboardEvent is elemental2.dom.ClipboardEvent
>>
>> I need a copy function because I reuse it in the "Cut" functionality also.
>>
>> and finally copy is something like this
>>
>> private void copy(ClipboardEvent event) {
>> if (!hasData()) { // <-- hasData() is your application specific
>> function
>> return;
>> }
>>
>> // do application stuff get/iterate and finally get the data in a
>> String form somehow...
>> final String data = getData(); // application specific
>>
>> event.clipboardData.setData("text/plain", data);
>> event.preventDefault();
>> }
>>
>> Similarly the paste evenListener:
>>
>> final elemental2.dom.EventListener paste_li = new
>> elemental2.dom.EventListener() {
>> @Override
>> public void handleEvent(elemental2.dom.Event evt) {
>> final ClipboardEvent event = Js.cast(evt);
>> final String data =
>> event.clipboardData.getData("text/plain")
>> event.preventDefault();
>> if (data == null)
>> return;
>>
>> // now you need somehow to propagate data to the
>> interesting parties (methods, classes etc)
>> // I am using the EventBus from GWT
>> getEventBus().fireEvent(new PasteEvent(data));
>> }
>> };
>>
>> Hope that helps
>>
>> Vassilis
>>
>> On Thu, Oct 20, 2022 at 9:18 AM Pramod Patil <patil.pramo...@gmail.com>
>> wrote:
>>
>>> Hi All,
>>> In our GWT application we are using Java native method call for
>>> Copytoclipboard functionality. Please refer below code
>>>
>>> public static native String getClipboardData()/*-{
>>> if($wnd.clipboardData && clipboardData.setData){
>>> return $wnd.clipboardData.getData('Text');
>>> }
>>> }
>>> }-*/
>>> public static native String setClipboardData(String data)/*-{
>>> if($wnd.clipboardData && clipboardData.setData){
>>> return $wnd.clipboardData.setData('Text',Data);
>>> }
>>> }
>>> }-*/
>>>
>>> So above code is working fine with IE browser but not working with
>>> modern browser. I know this is not GWT specific question, but I don't have
>>> much knowledge with Javascript, so anyone who knows Javascript, please help
>>> here.
>>>
>>>
>>>
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>>> .
>>>
>>
>>
>> --
>> Vassilis Virvilis
>>
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>> .
>>
>
>
> --
> Thanks and regards,
> Pramod Patil
> Contact +91-8975432800
>
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>
--
Vassilis Virvilis
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