/**
* When using the default functionality of the browser, getting/setting clipboard contents is
* solved quite well, and it uses the external clipboard. Thus this method is redundant in case
* it's called from paste event! For the same reason, it is not called from there.
*
* <p>However, we may call the same thing from GeoGebraWeb context menu, and in that case the form
* of this method is just Okay.
*
* @return String
*/
public static String getClipboardContents(Runnable onFocusChange) {
String clipboard = null;
if (isChromeWebapp()) { // use chrome web app paste API
clipboard = getSystemClipboardChromeWebapp();
if (onFocusChange != null) {
onFocusChange.run();
}
} else if (Browser.isInternetExplorer()) {
clipboard = getSystemClipboardIE();
} else { // use internal clipboard
clipboard = staticClipboardString;
}
return clipboard;
}
/**
* When using the default functionality of the browser, getting/setting clipboard contents is
* solved quite well, and it uses the external clipboard. Thus this method is redundant in case
* it's called from copy or cut events, maybe does the same thing twice in Internet Explorer.
*
* <p>However, we may call the same thing from GeoGebraWeb context menu, and in that case the form
* of this method is just Okay. Note that in order to make the staticClipboardString function well
* from context menu, we need to set it every case this method is called, and every case the
* cut/paste events happen.
*
* @param value String
*/
public static void setClipboardContents(String value, Runnable onFocusChange) {
if (isChromeWebapp()) { // use chrome web app copy API
copyToSystemClipboardChromeWebapp(value);
if (onFocusChange != null) {
onFocusChange.run();
}
} else if (Browser.isInternetExplorer()) {
// App.debug("is IE");
copyToSystemClipboardIE(value);
}
// use internal clipboard too, every time
staticClipboardString = value;
copyToSystemClipboard(value);
}