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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dijit/_editor/selection.js
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
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New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'includes/js/dijit/_editor/selection.js')
-rw-r--r--includes/js/dijit/_editor/selection.js246
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diff --git a/includes/js/dijit/_editor/selection.js b/includes/js/dijit/_editor/selection.js
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+if(!dojo._hasResource["dijit._editor.selection"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit._editor.selection"] = true;
+dojo.provide("dijit._editor.selection");
+
+// FIXME:
+// all of these methods branch internally for IE. This is probably
+// sub-optimal in terms of runtime performance. We should investigate the
+// size difference for differentiating at definition time.
+
+dojo.mixin(dijit._editor.selection, {
+ getType: function(){
+ // summary: Get the selection type (like dojo.doc.select.type in IE).
+ if(dojo.doc.selection){ //IE
+ return dojo.doc.selection.type.toLowerCase();
+ }else{
+ var stype = "text";
+
+ // Check if the actual selection is a CONTROL (IMG, TABLE, HR, etc...).
+ var oSel;
+ try{
+ oSel = dojo.global.getSelection();
+ }catch(e){ /*squelch*/ }
+
+ if(oSel && oSel.rangeCount==1){
+ var oRange = oSel.getRangeAt(0);
+ if( (oRange.startContainer == oRange.endContainer) &&
+ ((oRange.endOffset - oRange.startOffset) == 1) &&
+ (oRange.startContainer.nodeType != 3 /* text node*/)
+ ){
+ stype = "control";
+ }
+ }
+ return stype;
+ }
+ },
+
+ getSelectedText: function(){
+ // summary:
+ // Return the text (no html tags) included in the current selection or null if no text is selected
+ if(dojo.doc.selection){ //IE
+ if(dijit._editor.selection.getType() == 'control'){
+ return null;
+ }
+ return dojo.doc.selection.createRange().text;
+ }else{
+ var selection = dojo.global.getSelection();
+ if(selection){
+ return selection.toString();
+ }
+ }
+ return ''
+ },
+
+ getSelectedHtml: function(){
+ // summary:
+ // Return the html of the current selection or null if unavailable
+ if(dojo.doc.selection){ //IE
+ if(dijit._editor.selection.getType() == 'control'){
+ return null;
+ }
+ return dojo.doc.selection.createRange().htmlText;
+ }else{
+ var selection = dojo.global.getSelection();
+ if(selection && selection.rangeCount){
+ var frag = selection.getRangeAt(0).cloneContents();
+ var div = dojo.doc.createElement("div");
+ div.appendChild(frag);
+ return div.innerHTML;
+ }
+ return null;
+ }
+ },
+
+ getSelectedElement: function(){
+ // summary:
+ // Retrieves the selected element (if any), just in the case that
+ // a single element (object like and image or a table) is
+ // selected.
+ if(this.getType() == "control"){
+ if(dojo.doc.selection){ //IE
+ var range = dojo.doc.selection.createRange();
+ if(range && range.item){
+ return dojo.doc.selection.createRange().item(0);
+ }
+ }else{
+ var selection = dojo.global.getSelection();
+ return selection.anchorNode.childNodes[ selection.anchorOffset ];
+ }
+ }
+ return null;
+ },
+
+ getParentElement: function(){
+ // summary:
+ // Get the parent element of the current selection
+ if(this.getType() == "control"){
+ var p = this.getSelectedElement();
+ if(p){ return p.parentNode; }
+ }else{
+ if(dojo.doc.selection){ //IE
+ return dojo.doc.selection.createRange().parentElement();
+ }else{
+ var selection = dojo.global.getSelection();
+ if(selection){
+ var node = selection.anchorNode;
+
+ while(node && (node.nodeType != 1)){ // not an element
+ node = node.parentNode;
+ }
+
+ return node;
+ }
+ }
+ }
+ return null;
+ },
+
+ hasAncestorElement: function(/*String*/tagName /* ... */){
+ // summary:
+ // Check whether current selection has a parent element which is
+ // of type tagName (or one of the other specified tagName)
+ return this.getAncestorElement.apply(this, arguments) != null;
+ },
+
+ getAncestorElement: function(/*String*/tagName /* ... */){
+ // summary:
+ // Return the parent element of the current selection which is of
+ // type tagName (or one of the other specified tagName)
+
+ var node = this.getSelectedElement() || this.getParentElement();
+ return this.getParentOfType(node, arguments);
+ },
+
+ isTag: function(/*DomNode*/node, /*Array*/tags){
+ if(node && node.tagName){
+ var _nlc = node.tagName.toLowerCase();
+ for(var i=0; i<tags.length; i++){
+ var _tlc = String(tags[i]).toLowerCase();
+ if(_nlc == _tlc){
+ return _tlc;
+ }
+ }
+ }
+ return "";
+ },
+
+ getParentOfType: function(/*DomNode*/node, /*Array*/tags){
+ while(node){
+ if(this.isTag(node, tags).length){
+ return node;
+ }
+ node = node.parentNode;
+ }
+ return null;
+ },
+
+ collapse: function(/*Boolean*/beginning) {
+ // summary: clear current selection
+ if(window['getSelection']){
+ var selection = dojo.global.getSelection();
+ if(selection.removeAllRanges){ // Mozilla
+ if(beginning){
+ selection.collapseToStart();
+ }else{
+ selection.collapseToEnd();
+ }
+ }else{ // Safari
+ // pulled from WebCore/ecma/kjs_window.cpp, line 2536
+ selection.collapse(beginning);
+ }
+ }else if(dojo.doc.selection){ // IE
+ var range = dojo.doc.selection.createRange();
+ range.collapse(beginning);
+ range.select();
+ }
+ },
+
+ remove: function(){
+ // summary: delete current selection
+ var _s = dojo.doc.selection;
+ if(_s){ //IE
+ if(_s.type.toLowerCase() != "none"){
+ _s.clear();
+ }
+ return _s;
+ }else{
+ _s = dojo.global.getSelection();
+ _s.deleteFromDocument();
+ return _s;
+ }
+ },
+
+ selectElementChildren: function(/*DomNode*/element,/*Boolean?*/nochangefocus){
+ // summary:
+ // clear previous selection and select the content of the node
+ // (excluding the node itself)
+ var _window = dojo.global;
+ var _document = dojo.doc;
+ element = dojo.byId(element);
+ if(_document.selection && dojo.body().createTextRange){ // IE
+ var range = element.ownerDocument.body.createTextRange();
+ range.moveToElementText(element);
+ if(!nochangefocus){
+ try{
+ range.select(); // IE throws an exception here if the widget is hidden. See #5439
+ }catch(e){ /* squelch */}
+ }
+ }else if(_window.getSelection){
+ var selection = _window.getSelection();
+ if(selection.setBaseAndExtent){ // Safari
+ selection.setBaseAndExtent(element, 0, element, element.innerText.length - 1);
+ }else if(selection.selectAllChildren){ // Mozilla
+ selection.selectAllChildren(element);
+ }
+ }
+ },
+
+ selectElement: function(/*DomNode*/element,/*Boolean?*/nochangefocus){
+ // summary:
+ // clear previous selection and select element (including all its children)
+ var range, _document = dojo.doc;
+ element = dojo.byId(element);
+ if(_document.selection && dojo.body().createTextRange){ // IE
+ try{
+ range = dojo.body().createControlRange();
+ range.addElement(element);
+ if(!nochangefocus){
+ range.select();
+ }
+ }catch(e){
+ this.selectElementChildren(element,nochangefocus);
+ }
+ }else if(dojo.global.getSelection){
+ var selection = dojo.global.getSelection();
+ // FIXME: does this work on Safari?
+ if(selection.removeAllRanges){ // Mozilla
+ range = _document.createRange();
+ range.selectNode(element);
+ selection.removeAllRanges();
+ selection.addRange(range);
+ }
+ }
+ }
+});
+
+}