mirror of
https://github.com/EGroupware/egroupware.git
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249 lines
8.2 KiB
JavaScript
249 lines
8.2 KiB
JavaScript
/*
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DynAPI Distribution
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DynKeyEvent Extensions
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The DynAPI Distribution is distributed under the terms of the GNU LGPL license.
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Requirements:
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dynapi.api
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*/
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function DynKeyEvent(type,src) {
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this.DynEvent = DynEvent;
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this.DynEvent(type,src);
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this.charKey=null;
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};
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var p=dynapi.setPrototype('DynKeyEvent','DynEvent');
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p.getKey=function() {
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return this.charKey;
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};
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DynKeyEvent._keyEventListener=function(e) {
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var dynobj=this._dynobj;
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if(!dynobj)
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return true;
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var dyndoc=dynobj.doc._dynobj;
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if(!dyndoc) return true;
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if(!e) var e=dyndoc.frame.event;
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var evt=new DynKeyEvent(e.type,dynobj);
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evt.which=(e.keyCode)?e.keyCode:e.which;
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var key=String.fromCharCode(evt.which).toLowerCase();
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if((key>='a'&&key<='z')||(key>='0'&&key<='9')) evt.charKey=key;
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evt.spaceKey=(evt.which==32);
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evt.enterKey=(evt.which==13);
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evt.tabKey=(evt.which==9||evt.which==65289);
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evt.leftKey=(evt.which==37||evt.which==52||evt.which==100||evt.which==65460);
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evt.rightKey=(evt.which==39||evt.which==54||evt.which==102||evt.which==65462);
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evt.upKey=(evt.which==38||evt.which==56||evt.which==104||evt.which==65464);
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evt.downKey=(evt.which==40||evt.which==50||evt.which==98||evt.which==65458);
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evt.altKey=(e.modifiers)?false:(e.altKey||e.altLeft||evt.which==18||evt.which==57388);
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evt.ctrlKey=(e.modifiers)?(e.modifiers&Event.CONTROL_MASK):(e.ctrlKey||e.ctrlLeft||evt.which==17||evt.which==57391);
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evt.shiftKey=(e.modifiers)?(e.modifiers&Event.SHIFT_MASK):(e.shiftKey||e.shiftLeft||evt.which==16||evt.which==57390);
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dynobj.invokeEvent(evt.type,evt);
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if(evt.defaultValue==false) {
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if(e.cancelBubble) e.cancelBubble=true;
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if(e.stopPropagation) e.stopPropagation();
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}
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return evt.defaultValue;
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};
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TabManager={};
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TabManager._c=0; // Current tab manager index.
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TabManager._all=[];
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TabManager._active=false;
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TabManager._activeTimeout=function() { // Prevent duplcate keydown events in NS4.
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TabManager._active=true;
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setTimeout('TabManager._active=false;',25);
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};
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TabManager._getForm=null;
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TabManager.getForm=function(p) { // Prevent default tab focus in Mozilla.
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if(TabManager._getForm) return;
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TabManager._getForm=p;
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var html='<form name="__frm" onsubmit="return false;"><input name="__tab" size=1></form>';
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return p.addChild(new DynLayer(html),'__lyr');
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};
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TabManager._grabFocus=function() {
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var form=TabManager._getForm.__lyr;
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setTimeout(form+'.doc.forms.__frm.__tab.focus();',0);
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};
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TabManager._el={};
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TabManager._el.onkeydown=function(e) {
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if(TabManager._getForm) { // User must have inserted TabManager form.
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if(TabManager._active) return;
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TabManager._activeTimeout();
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}
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var i1,o1,l1,i2,o2,l2;
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var nextKey=(e.tabKey||e.rightKey);
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var prevKey=((e.shiftKey&&e.tabKey)||e.leftKey);
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var submitKey=(e.enterKey||e.spaceKey);
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i1=TabManager._c; o1=TabManager._all[i1]; l1=TabManager._all.length;
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i2=o1._tabGroup._c; o2=o1._tabGroup._all[i2]; l2=o1._tabGroup._all.length;
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if(nextKey||prevKey) { // Cycle group.
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if(o2._hasFocusEvents) o2.setFocus(false,o2._focusBubble);
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else o2.invokeEvent('blur');
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if(prevKey) i2=(i2==0)?l2-1:i2-1;
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else i2=(i2==l2-1)?0:i2+1;
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o2=o1._tabGroup._all[i2]; o1._tabGroup._c=i2;
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if(o2._hasFocusEvents) o2.setFocus(true,o2._focusBubble);
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else o2.invokeEvent('focus');
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}
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else if(e.upKey||e.downKey) { // Cycle manager.
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if(o2._hasFocusEvents) o2.setFocus(false,o2._focusBubble);
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else o2.invokeEvent('blur');
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if(e.upKey) i1=(i1==0)?l1-1:i1-1;
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else i1=(i1==l1-1)?0:i1+1;
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o1=TabManager._all[i1]; TabManager._c=i1;
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i2=o1._tabGroup._c;
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o2=o1._tabGroup._all[i2];
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if(o2._hasFocusEvents) o2.setFocus(true,o2._focusBubble);
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else o2.invokeEvent('focus');
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} else if(submitKey) {
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o2.invokeEvent('submit');
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}
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e.preventDefault();
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if(TabManager._getForm) TabManager._grabFocus();
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};
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DynElement.prototype.createTabManager=function() {
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var p=this, c=p.children; if(!c) return;
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var args=(arguments.length)?arguments:c;
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var l=args.length, s; if(!l) return;
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if(p._tabGroup) delete p._tabGroup;
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p._tabGroup={ _c:0, _all:[] };
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for(var i=0;i<l;i++) {
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c=args[i];
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p._tabGroup._all[i]=c;
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c._hasTabManager=true;
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if(!c._submitFn) {
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s=c.id.replace(/-/g,'.')+'()'; // Element id callback.
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c._submitFn=s;
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}
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}
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l=TabManager._all.length; TabManager._all[l]=p;
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if(l==0) dynapi.onLoad(function() {
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dynapi.document.addEventListener(TabManager._el);
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});
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};
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DynElement.prototype.updateTabManager=function() {
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var tm=TabManager, all=tm._all[TabManager._c]; if(!all) return;
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var old=all._tabGroup; if(!old||old._all[old._c]==this) return;
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var p=this.parent, l;
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var tg=(p&&p._tabGroup)?p._tabGroup:null; if(!tg) return;
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l=tg._all.length;
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for(var i=0;i<l;i++) if(tg._all[i]==this) { tg._c=i; break; }
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l=tm._all.length;
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for(var i=0;i<l;i++) if(tm._all[i]==p) { tm._c=i; break; }
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};
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DynElement.prototype.addTabListeners=function(el) {
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if(el&&this._tabGroup) {
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var a=this._tabGroup._all;
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for(var i in a) a[i].addEventListener(el);
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}
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};
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DynElement.prototype.addSubmitFn=function(fn) {
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if(fn) this._submitFn=fn;
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};
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DynElement.prototype.callSubmitFn=function() {
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var f=this._submitFn;
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if(typeof(f)=='function') f();
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else if(typeof(f)=='string') eval(f);
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};
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DynElement.prototype.captureKeyEvents=function() {
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// This impossibilitates Inheritance... changing to the same aproach as captureMouseEvents
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//var elm=(this.getClassName()=='DynLayer')?this.elm:this.doc;
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var elm;
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if (this.getKeyEventElement) elm = this.getKeyEventElement();
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else elm=(this.getClassName()=='DynDocument')?this.doc:this.elm;
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//if(!elm||this._hasKeyEvents) return true;
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if (!elm) return true;
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if(elm.addEventListener) {
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elm.addEventListener("keydown",DynKeyEvent._keyEventListener,false);
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elm.addEventListener("keypress",DynKeyEvent._keyEventListener,false);
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elm.addEventListener("keyup",DynKeyEvent._keyEventListener,false);
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elm.addEventListener("blur",DynKeyEvent._keyEventListener,false);
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elm.addEventListener("focus",DynKeyEvent._keyEventListener,false);
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}
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else {
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if(elm.captureEvents)
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elm.captureEvents(Event.KEYPRESS|Event.KEYDOWN|Event.KEYUP);
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elm.onblur=elm.onfocus=elm.onkeydown=elm.onkeypress=elm.onkeyup=DynKeyEvent._keyEventListener;
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}
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this._hasKeyEvents=true;
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return false;
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};
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DynElement.prototype.releaseKeyEvents=function() {
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var elm=(this.getClassName()=='DynLayer')?this.elm:this.doc;
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if(!elm||!this._hasKeyEvents) return true;
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if(elm.removeEventListener) {
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elm.removeEventListener("keydown",DynKeyEvent._keyEventListener,false);
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elm.removeEventListener("keypress",DynKeyEvent._keyEventListener,false);
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elm.removeEventListener("keyup",DynKeyEvent._keyEventListener,false);
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}
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else {
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if(elm.releaseEvents)
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elm.releaseEvents(Event.KEYPRESS|Event.KEYDOWN|Event.KEYUP);
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elm.onkeydown=elm.onkeypress=elm.onkeyup=null;
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}
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this._hasKeyEvents=false;
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return false;
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};
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DynDocument.prototype.captureHotKey = function(key,fn){
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var klst=((key+'').toLowerCase()).split('+');
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klst.sort();
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key=klst.join('+');
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if(!this._hotKeys){
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this._hotKeys={};
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this._keyDn={};
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this._keyLst='';
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this.captureKeyEvents();
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this.addEventListener({
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onkeydown:function(e){
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var k = e.which;
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var o = e.getSource();
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// to-do: add opera v7 key code (57xxx), e.g 57388
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if (k==13) k="enter";
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else if(k==27) k="esc";
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else if(k==45) k="insert";
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else if(k==46) k="delete";
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else if(k==36) k="home";
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else if(k==35) k="end";
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else if(k==33) k="pgup";
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else if(k==34) k="pgdn";
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else if(k==38) k="up";
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else if(k==40) k="down";
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else if(k==37) k="left";
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else if(k==39) k="right";
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else if(e.altKey && !o._keyDn['alt']) k="alt";
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else if(e.ctrlKey && !o._keyDn['ctrl']) k="ctrl";
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else if(e.shiftKey && !o._keyDn['shift']) k="shift";
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else k=(String.fromCharCode(k)).toLowerCase();
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if(!o._keyDn[k]) {
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// store new key in keyDn array
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o._keyLst+=(((o._keyLst)? '+':'')+k); // build key list
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var ar=o._keyLst.split('+');
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ar.sort();
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o._keyLst=ar.join('+');
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o._keyDn[k]=true;
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}
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k=o._hotKeys[o._keyLst];
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if(k){
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o._keyLst='';o._keyDn={};
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if(typeof(k)=='string') return eval(k); else return k();
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}
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},
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onkeyup:function(e){
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var o=e.getSource();
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o._keyLst='';o._keyDn={};
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}
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});
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}
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this._hotKeys[key]=fn;
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};
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DynDocument.prototype.releaseHotKey = function(key){
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if(this._hotKeys) delete this._hotKeys[key];
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};
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