131 lines
3.9 KiB
JavaScript
131 lines
3.9 KiB
JavaScript
define("dijit/form/_ComboBoxMenu", [
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"dojo/_base/declare", // declare
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"dojo/dom-class", // domClass.add domClass.remove
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"dojo/dom-style", // domStyle.get
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"dojo/keys", // keys.DOWN_ARROW keys.PAGE_DOWN keys.PAGE_UP keys.UP_ARROW
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"../_WidgetBase",
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"../_TemplatedMixin",
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"./_ComboBoxMenuMixin",
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"./_ListMouseMixin"
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], function(declare, domClass, domStyle, keys,
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_WidgetBase, _TemplatedMixin, _ComboBoxMenuMixin, _ListMouseMixin){
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// module:
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// dijit/form/_ComboBoxMenu
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return declare("dijit.form._ComboBoxMenu",[_WidgetBase, _TemplatedMixin, _ListMouseMixin, _ComboBoxMenuMixin], {
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// summary:
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// Focus-less menu for internal use in `dijit/form/ComboBox`
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// Abstract methods that must be defined externally:
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//
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// - onChange: item was explicitly chosen (mousedown somewhere on the menu and mouseup somewhere on the menu)
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// - onPage: next(1) or previous(-1) button pressed
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// tags:
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// private
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templateString: "<div class='dijitReset dijitMenu' data-dojo-attach-point='containerNode' style='overflow: auto; overflow-x: hidden;' role='listbox'>"
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+"<div class='dijitMenuItem dijitMenuPreviousButton' data-dojo-attach-point='previousButton' role='option'></div>"
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+"<div class='dijitMenuItem dijitMenuNextButton' data-dojo-attach-point='nextButton' role='option'></div>"
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+"</div>",
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baseClass: "dijitComboBoxMenu",
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postCreate: function(){
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this.inherited(arguments);
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if(!this.isLeftToRight()){
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domClass.add(this.previousButton, "dijitMenuItemRtl");
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domClass.add(this.nextButton, "dijitMenuItemRtl");
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}
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},
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_createMenuItem: function(){
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// note: not using domConstruct.create() because need to specify document
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var item = this.ownerDocument.createElement("div");
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item.className = "dijitReset dijitMenuItem" +(this.isLeftToRight() ? "" : " dijitMenuItemRtl");
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item.setAttribute("role", "option");
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return item;
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},
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onHover: function(/*DomNode*/ node){
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// summary:
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// Add hover CSS
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domClass.add(node, "dijitMenuItemHover");
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},
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onUnhover: function(/*DomNode*/ node){
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// summary:
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// Remove hover CSS
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domClass.remove(node, "dijitMenuItemHover");
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},
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onSelect: function(/*DomNode*/ node){
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// summary:
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// Add selected CSS
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domClass.add(node, "dijitMenuItemSelected");
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},
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onDeselect: function(/*DomNode*/ node){
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// summary:
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// Remove selected CSS
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domClass.remove(node, "dijitMenuItemSelected");
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},
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_page: function(/*Boolean*/ up){
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// summary:
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// Handles page-up and page-down keypresses
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var scrollamount = 0;
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var oldscroll = this.domNode.scrollTop;
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var height = domStyle.get(this.domNode, "height");
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// if no item is highlighted, highlight the first option
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if(!this.getHighlightedOption()){
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this.selectNextNode();
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}
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while(scrollamount<height){
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var highlighted_option = this.getHighlightedOption();
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if(up){
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// stop at option 1
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if(!highlighted_option.previousSibling ||
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highlighted_option.previousSibling.style.display == "none"){
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break;
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}
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this.selectPreviousNode();
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}else{
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// stop at last option
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if(!highlighted_option.nextSibling ||
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highlighted_option.nextSibling.style.display == "none"){
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break;
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}
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this.selectNextNode();
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}
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// going backwards
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var newscroll = this.domNode.scrollTop;
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scrollamount += (newscroll-oldscroll)*(up ? -1:1);
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oldscroll = newscroll;
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}
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},
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handleKey: function(evt){
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// summary:
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// Handle keystroke event forwarded from ComboBox, returning false if it's
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// a keystroke I recognize and process, true otherwise.
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switch(evt.keyCode){
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case keys.DOWN_ARROW:
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this.selectNextNode();
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return false;
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case keys.PAGE_DOWN:
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this._page(false);
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return false;
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case keys.UP_ARROW:
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this.selectPreviousNode();
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return false;
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case keys.PAGE_UP:
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this._page(true);
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return false;
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default:
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return true;
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}
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}
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});
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});
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