Blame | Last modification | View Log | RSS feed
if(!dojo._hasResource["dijit._base.typematic"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit._base.typematic"] = true;
dojo.provide("dijit._base.typematic");
dijit.typematic = {
// summary:
// These functions are used to repetitively call a user specified callback
// method when a specific key or mouse click over a specific DOM node is
// held down for a specific amount of time.
// Only 1 such event is allowed to occur on the browser page at 1 time.
_fireEventAndReload: function(){
this._timer = null;
this._callback(++this._count, this._node, this._evt);
this._currentTimeout = (this._currentTimeout < 0) ? this._initialDelay : ((this._subsequentDelay > 1) ? this._subsequentDelay : Math.round(this._currentTimeout * this._subsequentDelay));
this._timer = setTimeout(dojo.hitch(this, "_fireEventAndReload"), this._currentTimeout);
},
trigger: function(/*Event*/ evt, /* Object */ _this, /*DOMNode*/ node, /* Function */ callback, /* Object */ obj, /* Number */ subsequentDelay, /* Number */ initialDelay){
// summary:
// Start a timed, repeating callback sequence.
// If already started, the function call is ignored.
// This method is not normally called by the user but can be
// when the normal listener code is insufficient.
// Parameters:
// evt: key or mouse event object to pass to the user callback
// _this: pointer to the user's widget space.
// node: the DOM node object to pass the the callback function
// callback: function to call until the sequence is stopped called with 3 parameters:
// count: integer representing number of repeated calls (0..n) with -1 indicating the iteration has stopped
// node: the DOM node object passed in
// evt: key or mouse event object
// obj: user space object used to uniquely identify each typematic sequence
// subsequentDelay: if > 1, the number of milliseconds until the 3->n events occur
// or else the fractional time multiplier for the next event's delay, default=0.9
// initialDelay: the number of milliseconds until the 2nd event occurs, default=500ms
if(obj != this._obj){
this.stop();
this._initialDelay = initialDelay || 500;
this._subsequentDelay = subsequentDelay || 0.90;
this._obj = obj;
this._evt = evt;
this._node = node;
this._currentTimeout = -1;
this._count = -1;
this._callback = dojo.hitch(_this, callback);
this._fireEventAndReload();
}
},
stop: function(){
// summary:
// Stop an ongoing timed, repeating callback sequence.
if(this._timer){
clearTimeout(this._timer);
this._timer = null;
}
if(this._obj){
this._callback(-1, this._node, this._evt);
this._obj = null;
}
},
addKeyListener: function(/*DOMNode*/ node, /*Object*/ keyObject, /*Object*/ _this, /*Function*/ callback, /*Number*/ subsequentDelay, /*Number*/ initialDelay){
// summary: Start listening for a specific typematic key.
// keyObject: an object defining the key to listen for.
// key: (mandatory) the keyCode (number) or character (string) to listen for.
// ctrlKey: desired ctrl key state to initiate the calback sequence:
// pressed (true)
// released (false)
// either (unspecified)
// altKey: same as ctrlKey but for the alt key
// shiftKey: same as ctrlKey but for the shift key
// See the trigger method for other parameters.
// Returns an array of dojo.connect handles
return [
dojo.connect(node, "onkeypress", this, function(evt){
if(evt.keyCode == keyObject.keyCode && (!keyObject.charCode || keyObject.charCode == evt.charCode) &&
(keyObject.ctrlKey === undefined || keyObject.ctrlKey == evt.ctrlKey) &&
(keyObject.altKey === undefined || keyObject.altKey == evt.ctrlKey) &&
(keyObject.shiftKey === undefined || keyObject.shiftKey == evt.ctrlKey)){
dojo.stopEvent(evt);
dijit.typematic.trigger(keyObject, _this, node, callback, keyObject, subsequentDelay, initialDelay);
}else if(dijit.typematic._obj == keyObject){
dijit.typematic.stop();
}
}),
dojo.connect(node, "onkeyup", this, function(evt){
if(dijit.typematic._obj == keyObject){
dijit.typematic.stop();
}
})
];
},
addMouseListener: function(/*DOMNode*/ node, /*Object*/ _this, /*Function*/ callback, /*Number*/ subsequentDelay, /*Number*/ initialDelay){
// summary: Start listening for a typematic mouse click.
// See the trigger method for other parameters.
// Returns an array of dojo.connect handles
var dc = dojo.connect;
return [
dc(node, "mousedown", this, function(evt){
dojo.stopEvent(evt);
dijit.typematic.trigger(evt, _this, node, callback, node, subsequentDelay, initialDelay);
}),
dc(node, "mouseup", this, function(evt){
dojo.stopEvent(evt);
dijit.typematic.stop();
}),
dc(node, "mouseout", this, function(evt){
dojo.stopEvent(evt);
dijit.typematic.stop();
}),
dc(node, "mousemove", this, function(evt){
dojo.stopEvent(evt);
}),
dc(node, "dblclick", this, function(evt){
dojo.stopEvent(evt);
if(dojo.isIE){
dijit.typematic.trigger(evt, _this, node, callback, node, subsequentDelay, initialDelay);
setTimeout(dijit.typematic.stop, 50);
}
})
];
},
addListener: function(/*Node*/ mouseNode, /*Node*/ keyNode, /*Object*/ keyObject, /*Object*/ _this, /*Function*/ callback, /*Number*/ subsequentDelay, /*Number*/ initialDelay){
// summary: Start listening for a specific typematic key and mouseclick.
// This is a thin wrapper to addKeyListener and addMouseListener.
// mouseNode: the DOM node object to listen on for mouse events.
// keyNode: the DOM node object to listen on for key events.
// See the addMouseListener and addKeyListener methods for other parameters.
// Returns an array of dojo.connect handles
return this.addKeyListener(keyNode, keyObject, _this, callback, subsequentDelay, initialDelay).concat(
this.addMouseListener(mouseNode, _this, callback, subsequentDelay, initialDelay));
}
};
}