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133 lines
5.1 KiB
JavaScript
133 lines
5.1 KiB
JavaScript
dojo.provide("dijit.form._Spinner");
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dojo.require("dijit.form.ValidationTextBox");
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dojo.declare(
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"dijit.form._Spinner",
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dijit.form.RangeBoundTextBox,
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{
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// summary:
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// Mixin for validation widgets with a spinner.
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// description:
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// This class basically (conceptually) extends `dijit.form.ValidationTextBox`.
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// It modifies the template to have up/down arrows, and provides related handling code.
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// defaultTimeout: Number
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// Number of milliseconds before a held arrow key or up/down button becomes typematic
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defaultTimeout: 500,
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// timeoutChangeRate: Number
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// Fraction of time used to change the typematic timer between events.
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// 1.0 means that each typematic event fires at defaultTimeout intervals.
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// < 1.0 means that each typematic event fires at an increasing faster rate.
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timeoutChangeRate: 0.90,
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// smallDelta: Number
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// Adjust the value by this much when spinning using the arrow keys/buttons
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smallDelta: 1,
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// largeDelta: Number
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// Adjust the value by this much when spinning using the PgUp/Dn keys
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largeDelta: 10,
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templatePath: dojo.moduleUrl("dijit.form", "templates/Spinner.html"),
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baseClass: "dijitSpinner",
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adjust: function(/* Object */ val, /*Number*/ delta){
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// summary:
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// Overridable function used to adjust a primitive value(Number/Date/...) by the delta amount specified.
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// The val is adjusted in a way that makes sense to the object type.
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// tags:
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// protected extension
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return val;
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},
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_arrowState: function(/*Node*/ node, /*Boolean*/ pressed){
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// summary:
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// Called when an arrow key is pressed to update the relevant CSS classes
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this._active = pressed;
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this.stateModifier = node.getAttribute("stateModifier") || "";
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this._setStateClass();
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},
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_arrowPressed: function(/*Node*/ nodePressed, /*Number*/ direction, /*Number*/ increment){
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// summary:
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// Handler for arrow button or arrow key being pressed
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if(this.disabled || this.readOnly){ return; }
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this._arrowState(nodePressed, true);
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this._setValueAttr(this.adjust(this.attr('value'), direction*increment), false);
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dijit.selectInputText(this.textbox, this.textbox.value.length);
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},
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_arrowReleased: function(/*Node*/ node){
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// summary:
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// Handler for arrow button or arrow key being released
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this._wheelTimer = null;
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if(this.disabled || this.readOnly){ return; }
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this._arrowState(node, false);
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},
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_typematicCallback: function(/*Number*/ count, /*DOMNode*/ node, /*Event*/ evt){
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var inc=this.smallDelta;
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if(node == this.textbox){
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var k=dojo.keys;
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var key = evt.charOrCode;
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inc = (key == k.PAGE_UP || key == k.PAGE_DOWN) ? this.largeDelta : this.smallDelta;
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node = (key == k.UP_ARROW ||key == k.PAGE_UP) ? this.upArrowNode : this.downArrowNode;
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}
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if(count == -1){ this._arrowReleased(node); }
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else{ this._arrowPressed(node, (node == this.upArrowNode) ? 1 : -1, inc); }
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},
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_wheelTimer: null,
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_mouseWheeled: function(/*Event*/ evt){
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// summary:
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// Mouse wheel listener where supported
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dojo.stopEvent(evt);
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// FIXME: Safari bubbles
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// be nice to DOH and scroll as much as the event says to
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var scrollAmount = evt.detail ? (evt.detail * -1) : (evt.wheelDelta / 120);
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if(scrollAmount !== 0){
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var node = this[(scrollAmount > 0 ? "upArrowNode" : "downArrowNode" )];
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this._arrowPressed(node, scrollAmount, this.smallDelta);
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if(!this._wheelTimer){
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clearTimeout(this._wheelTimer);
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}
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this._wheelTimer = setTimeout(dojo.hitch(this,"_arrowReleased",node), 50);
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}
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},
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postCreate: function(){
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this.inherited(arguments);
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// extra listeners
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this.connect(this.domNode, !dojo.isMozilla ? "onmousewheel" : 'DOMMouseScroll', "_mouseWheeled");
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this._connects.push(dijit.typematic.addListener(this.upArrowNode, this.textbox, {charOrCode:dojo.keys.UP_ARROW,ctrlKey:false,altKey:false,shiftKey:false}, this, "_typematicCallback", this.timeoutChangeRate, this.defaultTimeout));
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this._connects.push(dijit.typematic.addListener(this.downArrowNode, this.textbox, {charOrCode:dojo.keys.DOWN_ARROW,ctrlKey:false,altKey:false,shiftKey:false}, this, "_typematicCallback", this.timeoutChangeRate, this.defaultTimeout));
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this._connects.push(dijit.typematic.addListener(this.upArrowNode, this.textbox, {charOrCode:dojo.keys.PAGE_UP,ctrlKey:false,altKey:false,shiftKey:false}, this, "_typematicCallback", this.timeoutChangeRate, this.defaultTimeout));
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this._connects.push(dijit.typematic.addListener(this.downArrowNode, this.textbox, {charOrCode:dojo.keys.PAGE_DOWN,ctrlKey:false,altKey:false,shiftKey:false}, this, "_typematicCallback", this.timeoutChangeRate, this.defaultTimeout));
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if(dojo.isIE){
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var _this = this;
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this.connect(this.domNode, "onresize",
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function(){ setTimeout(dojo.hitch(_this,
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function(){
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var sz = this.upArrowNode.parentNode.offsetHeight;
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if(sz){
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this.upArrowNode.style.height = sz >> 1;
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this.downArrowNode.style.height = sz - (sz >> 1);
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this.focusNode.parentNode.style.height = sz;
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}
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// cause IE to rerender when spinner is moved from hidden to visible
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this._setStateClass();
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}), 0);
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}
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);
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}
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}
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});
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