+++ /dev/null
-if(!dojo._hasResource["dijit._base.focus"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource["dijit._base.focus"] = true;
-dojo.provide("dijit._base.focus");
-
-// summary:
-// These functions are used to query or set the focus and selection.
-//
-// Also, they trace when widgets become actived/deactivated,
-// so that the widget can fire _onFocus/_onBlur events.
-// "Active" here means something similar to "focused", but
-// "focus" isn't quite the right word because we keep track of
-// a whole stack of "active" widgets. Example: Combobutton --> Menu -->
-// MenuItem. The onBlur event for Combobutton doesn't fire due to focusing
-// on the Menu or a MenuItem, since they are considered part of the
-// Combobutton widget. It only happens when focus is shifted
-// somewhere completely different.
-
-dojo.mixin(dijit,
-{
- // _curFocus: DomNode
- // Currently focused item on screen
- _curFocus: null,
-
- // _prevFocus: DomNode
- // Previously focused item on screen
- _prevFocus: null,
-
- isCollapsed: function(){
- // summary: tests whether the current selection is empty
- var _window = dojo.global;
- var _document = dojo.doc;
- if(_document.selection){ // IE
- return !_document.selection.createRange().text; // Boolean
- }else{
- var selection = _window.getSelection();
- if(dojo.isString(selection)){ // Safari
- return !selection; // Boolean
- }else{ // Mozilla/W3
- return selection.isCollapsed || !selection.toString(); // Boolean
- }
- }
- },
-
- getBookmark: function(){
- // summary: Retrieves a bookmark that can be used with moveToBookmark to return to the same range
- var bookmark, selection = dojo.doc.selection;
- if(selection){ // IE
- var range = selection.createRange();
- if(selection.type.toUpperCase()=='CONTROL'){
- if(range.length){
- bookmark=[];
- var i=0,len=range.length;
- while(i<len){
- bookmark.push(range.item(i++));
- }
- }else{
- bookmark=null;
- }
- }else{
- bookmark = range.getBookmark();
- }
- }else{
- if(window.getSelection){
- selection = dojo.global.getSelection();
- if(selection){
- range = selection.getRangeAt(0);
- bookmark = range.cloneRange();
- }
- }else{
- console.warn("No idea how to store the current selection for this browser!");
- }
- }
- return bookmark; // Array
- },
-
- moveToBookmark: function(/*Object*/bookmark){
- // summary: Moves current selection to a bookmark
- // bookmark: This should be a returned object from dojo.html.selection.getBookmark()
- var _document = dojo.doc;
- if(_document.selection){ // IE
- var range;
- if(dojo.isArray(bookmark)){
- range = _document.body.createControlRange();
- dojo.forEach(bookmark, "range.addElement(item)"); //range.addElement does not have call/apply method, so can not call it directly
- }else{
- range = _document.selection.createRange();
- range.moveToBookmark(bookmark);
- }
- range.select();
- }else{ //Moz/W3C
- var selection = dojo.global.getSelection && dojo.global.getSelection();
- if(selection && selection.removeAllRanges){
- selection.removeAllRanges();
- selection.addRange(bookmark);
- }else{
- console.warn("No idea how to restore selection for this browser!");
- }
- }
- },
-
- getFocus: function(/*Widget?*/menu, /*Window?*/openedForWindow){
- // summary:
- // Returns the current focus and selection.
- // Called when a popup appears (either a top level menu or a dialog),
- // or when a toolbar/menubar receives focus
- //
- // menu:
- // The menu that's being opened
- //
- // openedForWindow:
- // iframe in which menu was opened
- //
- // returns:
- // A handle to restore focus/selection
-
- return {
- // Node to return focus to
- node: menu && dojo.isDescendant(dijit._curFocus, menu.domNode) ? dijit._prevFocus : dijit._curFocus,
-
- // Previously selected text
- bookmark:
- !dojo.withGlobal(openedForWindow||dojo.global, dijit.isCollapsed) ?
- dojo.withGlobal(openedForWindow||dojo.global, dijit.getBookmark) :
- null,
-
- openedForWindow: openedForWindow
- }; // Object
- },
-
- focus: function(/*Object || DomNode */ handle){
- // summary:
- // Sets the focused node and the selection according to argument.
- // To set focus to an iframe's content, pass in the iframe itself.
- // handle:
- // object returned by get(), or a DomNode
-
- if(!handle){ return; }
-
- var node = "node" in handle ? handle.node : handle, // because handle is either DomNode or a composite object
- bookmark = handle.bookmark,
- openedForWindow = handle.openedForWindow;
-
- // Set the focus
- // Note that for iframe's we need to use the <iframe> to follow the parentNode chain,
- // but we need to set focus to iframe.contentWindow
- if(node){
- var focusNode = (node.tagName.toLowerCase()=="iframe") ? node.contentWindow : node;
- if(focusNode && focusNode.focus){
- try{
- // Gecko throws sometimes if setting focus is impossible,
- // node not displayed or something like that
- focusNode.focus();
- }catch(e){/*quiet*/}
- }
- dijit._onFocusNode(node);
- }
-
- // set the selection
- // do not need to restore if current selection is not empty
- // (use keyboard to select a menu item)
- if(bookmark && dojo.withGlobal(openedForWindow||dojo.global, dijit.isCollapsed)){
- if(openedForWindow){
- openedForWindow.focus();
- }
- try{
- dojo.withGlobal(openedForWindow||dojo.global, dijit.moveToBookmark, null, [bookmark]);
- }catch(e){
- /*squelch IE internal error, see http://trac.dojotoolkit.org/ticket/1984 */
- }
- }
- },
-
- // _activeStack: Array
- // List of currently active widgets (focused widget and it's ancestors)
- _activeStack: [],
-
- registerWin: function(/*Window?*/targetWindow){
- // summary:
- // Registers listeners on the specified window (either the main
- // window or an iframe) to detect when the user has clicked somewhere.
- // Anyone that creates an iframe should call this function.
-
- if(!targetWindow){
- targetWindow = window;
- }
-
- dojo.connect(targetWindow.document, "onmousedown", function(evt){
- dijit._justMouseDowned = true;
- setTimeout(function(){ dijit._justMouseDowned = false; }, 0);
- dijit._onTouchNode(evt.target||evt.srcElement);
- });
- //dojo.connect(targetWindow, "onscroll", ???);
-
- // Listen for blur and focus events on targetWindow's body
- var body = targetWindow.document.body || targetWindow.document.getElementsByTagName("body")[0];
- if(body){
- if(dojo.isIE){
- body.attachEvent('onactivate', function(evt){
- if(evt.srcElement.tagName.toLowerCase() != "body"){
- dijit._onFocusNode(evt.srcElement);
- }
- });
- body.attachEvent('ondeactivate', function(evt){ dijit._onBlurNode(evt.srcElement); });
- }else{
- body.addEventListener('focus', function(evt){ dijit._onFocusNode(evt.target); }, true);
- body.addEventListener('blur', function(evt){ dijit._onBlurNode(evt.target); }, true);
- }
- }
- body = null; // prevent memory leak (apparent circular reference via closure)
- },
-
- _onBlurNode: function(/*DomNode*/ node){
- // summary:
- // Called when focus leaves a node.
- // Usually ignored, _unless_ it *isn't* follwed by touching another node,
- // which indicates that we tabbed off the last field on the page,
- // in which case every widget is marked inactive
- dijit._prevFocus = dijit._curFocus;
- dijit._curFocus = null;
-
- if(dijit._justMouseDowned){
- // the mouse down caused a new widget to be marked as active; this blur event
- // is coming late, so ignore it.
- return;
- }
-
- // if the blur event isn't followed by a focus event then mark all widgets as inactive.
- if(dijit._clearActiveWidgetsTimer){
- clearTimeout(dijit._clearActiveWidgetsTimer);
- }
- dijit._clearActiveWidgetsTimer = setTimeout(function(){
- delete dijit._clearActiveWidgetsTimer;
- dijit._setStack([]);
- dijit._prevFocus = null;
- }, 100);
- },
-
- _onTouchNode: function(/*DomNode*/ node){
- // summary:
- // Callback when node is focused or mouse-downed
-
- // ignore the recent blurNode event
- if(dijit._clearActiveWidgetsTimer){
- clearTimeout(dijit._clearActiveWidgetsTimer);
- delete dijit._clearActiveWidgetsTimer;
- }
-
- // compute stack of active widgets (ex: ComboButton --> Menu --> MenuItem)
- var newStack=[];
- try{
- while(node){
- if(node.dijitPopupParent){
- node=dijit.byId(node.dijitPopupParent).domNode;
- }else if(node.tagName && node.tagName.toLowerCase()=="body"){
- // is this the root of the document or just the root of an iframe?
- if(node===dojo.body()){
- // node is the root of the main document
- break;
- }
- // otherwise, find the iframe this node refers to (can't access it via parentNode,
- // need to do this trick instead). window.frameElement is supported in IE/FF/Webkit
- node=dijit.getDocumentWindow(node.ownerDocument).frameElement;
- }else{
- var id = node.getAttribute && node.getAttribute("widgetId");
- if(id){
- newStack.unshift(id);
- }
- node=node.parentNode;
- }
- }
- }catch(e){ /* squelch */ }
-
- dijit._setStack(newStack);
- },
-
- _onFocusNode: function(/*DomNode*/ node){
- // summary
- // Callback when node is focused
- if(node && node.tagName && node.tagName.toLowerCase() == "body"){
- return;
- }
- dijit._onTouchNode(node);
-
- if(node==dijit._curFocus){ return; }
- if(dijit._curFocus){
- dijit._prevFocus = dijit._curFocus;
- }
- dijit._curFocus = node;
- dojo.publish("focusNode", [node]);
- },
-
- _setStack: function(newStack){
- // summary
- // The stack of active widgets has changed. Send out appropriate events and record new stack
-
- var oldStack = dijit._activeStack;
- dijit._activeStack = newStack;
-
- // compare old stack to new stack to see how many elements they have in common
- for(var nCommon=0; nCommon<Math.min(oldStack.length, newStack.length); nCommon++){
- if(oldStack[nCommon] != newStack[nCommon]){
- break;
- }
- }
-
- // for all elements that have gone out of focus, send blur event
- for(var i=oldStack.length-1; i>=nCommon; i--){
- var widget = dijit.byId(oldStack[i]);
- if(widget){
- widget._focused = false;
- widget._hasBeenBlurred = true;
- if(widget._onBlur){
- widget._onBlur();
- }
- if (widget._setStateClass){
- widget._setStateClass();
- }
- dojo.publish("widgetBlur", [widget]);
- }
- }
-
- // for all element that have come into focus, send focus event
- for(i=nCommon; i<newStack.length; i++){
- widget = dijit.byId(newStack[i]);
- if(widget){
- widget._focused = true;
- if(widget._onFocus){
- widget._onFocus();
- }
- if (widget._setStateClass){
- widget._setStateClass();
- }
- dojo.publish("widgetFocus", [widget]);
- }
- }
- }
-});
-
-// register top window and all the iframes it contains
-dojo.addOnLoad(dijit.registerWin);
-
-}
projects / eow / blobdiff