tagedit.js
来自「jakarta-taglibs」· JavaScript 代码 · 共 467 行 · 第 1/2 页
JS
467 行
else { // tag is unlocked
if(!bodyContent)
theDOM.documentElement.outerHTML = beforeNode + afterNode;
else {
tag.outerHTML = tag.innerHTML
}
//tag = null;
//theDOM.setSelectedNode(offsets[0],offsets[0]);
dw.setLiveDataMode(true);
}
}
}
/* function: getCurTag()
* ---------------------
* Sets the global tag variable to the DOM node of the currently
* selected tag (which may be any tag, custom or otherwise).
* UltraDev will raise JavaScript errors if we attempt to convert
* a pair offsets to a node in many cases, including the following:
* 1: Current selection begins at the end of the page's <BODY> tag
* or ends at the beginning of the </BODY> tag.
* 2: Current selection is inside the <BODY> tag, but there are no
* children of the <BODY> tag.
* We work around these errors by setting the current tag to
* null under these cases, so the floater will not be populated.
* Additionally, if the cursor is immediately before an opening or
* closing tag, UltraDev reports the current tag as the tag following
* the cursor. If we find these cases we also set tag to null, so the
* floater is not populated with an unselected tag.
*/
function getCurTag() {
var theDOM = dw.getDocumentDOM();
var selection = theDOM.getSelection();
var validOpen; // to test that selection is not the last offset of the <BODY> tag
var validClose; // to test that selection is not the first offset of the </BODY> tag
var selection = theDOM.getSelection(true); // offsets of the current selection
var selectedNode; // currently selected node
var tableNode; // dummy node to test if current node is a <TR> or <TD> tag
var selNodeOffsets; // currently selected node's offsets
var bodyNode = theDOM.body; // the <BODY> tag
var bodyChilds = bodyNode.childNodes; // the children of the <BODY> tag
if (selection[selection.length - 1] + 1 < (theDOM.nodeToOffsets(bodyNode)[0])) {
selectedNode = theDOM.offsetsToNode(selection[0],selection[0]);
tag = selectedNode;
}
else if (bodyNode.hasChildNodes() &&
!(selection[0] == selection[selection.length - 1] &&
bodyChilds[bodyChilds.length - 1].nodeType == Node.TEXT_NODE && // if body's last child is a text node, and selection is
selection[0] > (theDOM.nodeToOffsets(bodyChilds[bodyChilds.length - 1]))[0])) // insertion right after the text node, dw raises a js error
{
validOpen = theDOM.nodeToOffsets(bodyChilds[0])[0];
validClose = theDOM.nodeToOffsets(bodyChilds[bodyChilds.length - 1])[1];
if (selection[0] >= validOpen && selection[selection.length - 1] <= validClose && selection[0] + 1 < validClose) {
selectedNode = theDOM.getSelectedNode();
selNodeOffsets = theDOM.nodeToOffsets(selectedNode);
if ((selection[0] == selection[selection.length - 1]) && ((selection[0] == selNodeOffsets[0]) || // make sure we're not right before an opening tag
(selectedNode.hasChildNodes() && selection[0] == (selNodeOffsets[1] - (selectedNode.tagName.length + 3))))) { // make sure we're not right before a closing tag
tag = null; //current selection is cursor right before an opening or closing tag. Don't select.
}
else {
tableNode = theDOM.offsetsToNode(selection[0],selection[selection.length - 1]);
if (tableNode.tagName == "TR" || tableNode.tagName == "TD" && theDOM.nodeToOffsets(tableNode)[0] < selection[0]) { // dw will give us a <TD> or <TR> tag if a custom tag surrounding
tag = tableNode.parentNode; // one of these is selected, so use the parent tag.
}
else {
tag = theDOM.offsetsToNode(selection[0], selection[0]+1); // set tag to node surrounding current selection
}
}
}
}
else tag = null; //populateGrid() will call noCTSelected()
}
/* function: populateGrid()
* ------------------------
* Populates the Edit Tag floater with the attribute/value pairs
* of the currently selected custom tag. First sets "orig" to the
* opening tag of the currently selected tag. If current tag is
* locked, uses the untranslated source by calling unescape().
* Then calls tagIsCustom to determine if the current tag is a
* custom tag. If so, populates the floater with the tag's
* attribute/value pairs.
*/
function populateGrid() {
var orig; // the tag outerHTML inside a locked tag
var pairs; // the array of attribute value pairs to populate the control grid
if (tag != null && tag.outerHTML != null) {
if (tag.tagName != "MM:BEGINLOCK" && tagIsCustom(tag.outerHTML)) { // see if unlocked tag is custom
pairs = new Array(attlist.length);
for (var i = 0; i < attlist.length; i++) {
var userEntry = tag.getAttribute(attlist[i]);
if (userEntry == null) userEntry = ""; // can't send null to the control grid
pairs[i] = new Array(attlist[i],userEntry);
userEntry = "";
}
gc.setContents(pairs);
}
else if (tag.tagName == "MM:BEGINLOCK") { // see if locked tag is custom
orig = unescape(tag.getAttribute("ORIG"));
if (tagIsCustom(orig)) {
pairs = new Array(attlist.length);
for (var i = 0; i < attlist.length; i++) {
var userEntry = getParam(orig,(attlist[i]));
pairs[i] = new Array(attlist[i],userEntry);
userEntry = "";
}
gc.setContents(pairs);
}
else { // no custom tag selected
noCTSelected();
}
}
else { // no custom tag selected
noCTSelected();
}
}
}
/* function: tagIsCustom(orig)
* ---------------------------
* Checks to see if the supplied tag is one of the currently loaded
* custom tags. First, calls getLibNameFromPrefix() to see if the
* prefix of the current tag corresponds to a tag custom tag library.
* If so, it takes the tag library name and checks if it is in
* the "taglibs" global associative array. If so, it fills the
* attlist (attribute list) and bodyContent variables with the tag's
* info and returns true. If not found but name contains a colon (:),
* reload the taglibs array from the tagLibData file, since the user
* may have added a new tag library or purged the cache. In all other
* cases, do nothing and return false.
*/
function tagIsCustom(orig) {
var token;
var taginfo = new Array(2); // an array containing exactly the prefix and name of the tag
var curTagName;
if (taglibs == null) { // refresh memory in case cache was purged
eval(DWfile.read(TL_DATA_LOC + TL_DATA));
}
token = orig.split(" ")[0];
taginfo = token.substring(1).split(":");
prefix = taginfo[0];
tagName = taginfo[1];
selTaglib = getLibnameFromPrefix(prefix);
if (selTaglib == null) return false; // there is no namespace instantiation for this prefix
if(token.indexOf(":") > 0) {
if (taglibs[selTaglib] == null) {
// tag not found in memory, but is probably a custom tag
// reload taglib file in case user added
// a taglib or purged cache
eval(DWfile.read(TL_DATA_LOC + TL_DATA));
if (taglibs[selTaglib] == null) { // taglib still not found, so its not custom
return false;
}
}
}
else return false; // Has no colon (:) or has no namespace
// instantiation. Cannot be a custom tag
// We know a namespace instantiation exists for this tag.
// See if its in the taglibs associative array.
for (var i = 0; i < taglibs[selTaglib].length; i++) {
var curTagName = ((taglibs[selTaglib])[i])[0];
if (curTagName == tagName) {
attlist = ((taglibs[selTaglib])[i])[3];
bodyContent = ((taglibs[selTaglib])[i])[1];
return true;
}
}
return false; // tagLibrary does not exist locally
}
/* function: noCTSelected()
* ------------------------
* Called when no custom tag is selected. Checks if the GridControl
* contents have already been set with the NO_CT message. If not,
* sets the content to the NO_CT message to so the user knows that
* no custom tag is selected.
*/
function noCTSelected() {
var content;
tagName = selTaglib = prefix = attlist = null;
if (!((content = (gc.getContents())[0]) != null && (content[0] == NO_CT))) {
gc.setContents(NO_CT_SELECTED); //only send message to floater if a custom tag
//was previously selected
}
}
/* function: getLibnameFromPrefix
* ------------------------------
* Takes the prefix of the currently selected tag, finds the
* namespace instantiation at the top of the page with that prefix,
* and returns the tag library name based on the name of the TLD file,
* or null if no such tag library is found.
*/
function getLibnameFromPrefix(prefix) {
var theDOM = dw.getDocumentDOM();
var prefixIndex;
var childText;
var tldPath; // the full tldPath as specified in namespace instantiation
var libname = null; // the name of the actual tag library stored in TLD file
for (i = 0; i < theDOM.childNodes.length; i++) {
childText = theDOM.childNodes[i].outerHTML;
if (childText != null) {
prefixIndex = childText.indexOf(PREFIX_MATCH + "\"" + prefix + "\"");
if (prefixIndex != -1) {
if (childText.indexOf(URI_MATCH) != -1) {
tldPath = ((((childText.split(URI_MATCH + "\""))[1]).split("\""))[0]);
libname = tldPath.substring(tldPath.lastIndexOf("/") + 1,tldPath.lastIndexOf("."));
// now the name of the current tag library is set to the taglib's prefix
break;
}
}
}
}
return libname;
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