69 righe
2 KiB
JavaScript
69 righe
2 KiB
JavaScript
define("dijit/form/NumberSpinner", [
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"dojo/_base/declare", // declare
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"dojo/_base/event", // event.stop
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"dojo/keys", // keys.END keys.HOME
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"./_Spinner",
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"./NumberTextBox"
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], function(declare, event, keys, _Spinner, NumberTextBox){
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// module:
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// dijit/form/NumberSpinner
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return declare("dijit.form.NumberSpinner", [_Spinner, NumberTextBox.Mixin], {
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// summary:
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// Extends NumberTextBox to add up/down arrows and pageup/pagedown for incremental change to the value
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//
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// description:
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// A `dijit/form/NumberTextBox` extension to provide keyboard accessible value selection
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// as well as icons for spinning direction. When using the keyboard, the typematic rules
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// apply, meaning holding the key will gradually increase or decrease the value and
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// accelerate.
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//
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// example:
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// | new NumberSpinner({ constraints:{ max:300, min:100 }}, "someInput");
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baseClass: "dijitTextBox dijitSpinner dijitNumberTextBox",
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adjust: function(/*Object*/ val, /*Number*/ delta){
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// summary:
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// Change Number val by the given amount
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// tags:
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// protected
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var tc = this.constraints,
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v = isNaN(val),
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gotMax = !isNaN(tc.max),
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gotMin = !isNaN(tc.min)
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;
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if(v && delta != 0){ // blank or invalid value and they want to spin, so create defaults
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val = (delta > 0) ?
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gotMin ? tc.min : gotMax ? tc.max : 0 :
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gotMax ? this.constraints.max : gotMin ? tc.min : 0
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;
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}
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var newval = val + delta;
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if(v || isNaN(newval)){ return val; }
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if(gotMax && (newval > tc.max)){
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newval = tc.max;
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}
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if(gotMin && (newval < tc.min)){
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newval = tc.min;
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}
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return newval;
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},
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_onKeyPress: function(e){
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if((e.charOrCode == keys.HOME || e.charOrCode == keys.END) && !(e.ctrlKey || e.altKey || e.metaKey)
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&& typeof this.get('value') != 'undefined' /* gibberish, so HOME and END are default editing keys*/){
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var value = this.constraints[(e.charOrCode == keys.HOME ? "min" : "max")];
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if(typeof value == "number"){
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this._setValueAttr(value, false);
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}
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// eat home or end key whether we change the value or not
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event.stop(e);
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}
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}
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});
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});
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