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author | 2008-11-13 09:49:11 +0000 | |
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committer | 2008-11-13 09:49:11 +0000 | |
commit | e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch) | |
tree | 95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dijit/_base/typematic.js | |
parent | a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff) | |
download | scuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz scuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.zip |
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/_base/typematic.js')
-rw-r--r-- | includes/js/dijit/_base/typematic.js | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/includes/js/dijit/_base/typematic.js b/includes/js/dijit/_base/typematic.js new file mode 100644 index 0000000..9500839 --- /dev/null +++ b/includes/js/dijit/_base/typematic.js @@ -0,0 +1,139 @@ +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(dojo.hitch(this, 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)); + } +}; + +} |