Commands > A simple command example |
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The following command converts the selected text to all lowercase characters. The command is very simple; it does not display a dialog box, so the commandButtons()
function is not defined.
<HTML> <HEAD> <TITLE>Make Lower Case</TITLE> <SCRIPT LANGUAGE="javascript"> function canAcceptCommand(){ // Get the DOM of the current document var theDOM = dw.getDocumentDOM(); // Get the offsets of the selection var theSel = theDOM.getSelection(); // Get the selected node var theSelNode = theDOM.getSelectedNode(); // Get the children of the selected node var theChildren = theSelNode.childNodes; // If the selection is not an insertion point, and // either the selection or its first child is a // text node, return true. return (theSel[0] != theSel[1] && (theSelNode.nodeType == ¬
Node.TEXT_NODE || theChildren[0].nodeType == Node.TEXT_NODE));
} function changeToLowerCase() { // Get the DOM again var theDOM = dw.getDocumentDOM(); // Get the offsets of the selection var theSel = theDOM.getSelection(); // Get the outerHTML of the HTML tag (the // entire contents of the document) var theDocEl = theDOM.documentElement; var theWholeDoc = theDocEl.outerHTML; // Extract the selection var selText = theWholeDoc.substring(theSel[0],theSel[1]); // Re-insert the modified selection into the document theDocEl.outerHTML = theWholeDoc.substring(0,theSel[0]) + ¬// Set the selection back to where it was when you // started theDOM.setSelection(theSel[0],theSel[1]); } </SCRIPT> </HEAD> <BODY onLoad="changeToLowerCase()"> selText.toLowerCase() + theWholeDoc.substring(theSel[1]); <!-- The function that does all the work in this command is ¬ called from the onLoad handler on the BODY tag. There is no ¬ </BODY> </HTML> form in the BODY, so no dialog box appears. -->
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