combobox.js

初学者

		clearTimeout(this.searchTimer);
	}
	if (doSearch) {
		this._blurOptionNode();
		this.searchTimer = setTimeout(dojo.lang.hitch(this, this._startSearchFromInput), this.searchDelay);
	}
}, compositionEnd:function (evt) {
	evt.key = evt.keyCode;
	this._handleKeyEvents(evt);
}, onKeyUp:function (evt) {
	this.setValue(this.textInputNode.value);
}, setSelectedValue:function (value) {
	this.comboBoxSelectionValue.value = value;
}, setAllValues:function (value1, value2) {
	this.setSelectedValue(value2);
	this.setValue(value1);
}, _focusOptionNode:function (node) {
	if (this._highlighted_option != node) {
		this._blurOptionNode();
		this._highlighted_option = node;
		dojo.html.addClass(this._highlighted_option, "dojoComboBoxItemHighlight");
	}
}, _blurOptionNode:function () {
	if (this._highlighted_option) {
		dojo.html.removeClass(this._highlighted_option, "dojoComboBoxItemHighlight");
		this._highlighted_option = null;
	}
}, _highlightNextOption:function () {
	if ((!this._highlighted_option) || !this._highlighted_option.parentNode) {
		this._focusOptionNode(this.optionsListNode.firstChild);
	} else {
		if (this._highlighted_option.nextSibling) {
			this._focusOptionNode(this._highlighted_option.nextSibling);
		}
	}
	dojo.html.scrollIntoView(this._highlighted_option);
}, _highlightPrevOption:function () {
	if (this._highlighted_option && this._highlighted_option.previousSibling) {
		this._focusOptionNode(this._highlighted_option.previousSibling);
	} else {
		this._highlighted_option = null;
		this._hideResultList();
		return;
	}
	dojo.html.scrollIntoView(this._highlighted_option);
}, _itemMouseOver:function (evt) {
	if (evt.target === this.optionsListNode) {
		return;
	}
	this._focusOptionNode(evt.target);
	dojo.html.addClass(this._highlighted_option, "dojoComboBoxItemHighlight");
}, _itemMouseOut:function (evt) {
	if (evt.target === this.optionsListNode) {
		return;
	}
	this._blurOptionNode();
}, onResize:function () {
	var inputSize = dojo.html.getContentBox(this.textInputNode);
	if (inputSize.height <= 0) {
		dojo.lang.setTimeout(this, "onResize", 100);
		return;
	}
	var buttonSize = {width:inputSize.height, height:inputSize.height};
	dojo.html.setContentBox(this.downArrowNode, buttonSize);
}, fillInTemplate:function (args, frag) {
	dojo.html.applyBrowserClass(this.domNode);
	var source = this.getFragNodeRef(frag);
	if (!this.name && source.name) {
		this.name = source.name;
	}
	this.comboBoxValue.name = this.name;
	this.comboBoxSelectionValue.name = this.name + "_selected";
	dojo.html.copyStyle(this.domNode, source);
	dojo.html.copyStyle(this.textInputNode, source);
	dojo.html.copyStyle(this.downArrowNode, source);
	with (this.downArrowNode.style) {
		width = "0px";
		height = "0px";
	}
	var dpClass;
	if (this.dataProviderClass) {
		if (typeof this.dataProviderClass == "string") {
			dpClass = dojo.evalObjPath(this.dataProviderClass);
		} else {
			dpClass = this.dataProviderClass;
		}
	} else {
		if (this.mode == "remote") {
			dpClass = dojo.widget.incrementalComboBoxDataProvider;
		} else {
			dpClass = dojo.widget.basicComboBoxDataProvider;
		}
	}
	this.dataProvider = new dpClass(this, this.getFragNodeRef(frag));
	this.popupWidget = new dojo.widget.createWidget("PopupContainer", {toggle:this.dropdownToggle, toggleDuration:this.toggleDuration});
	dojo.event.connect(this, "destroy", this.popupWidget, "destroy");
	this.optionsListNode = this.popupWidget.domNode;
	this.domNode.appendChild(this.optionsListNode);
	dojo.html.addClass(this.optionsListNode, "dojoComboBoxOptions");
	dojo.event.connect(this.optionsListNode, "onclick", this, "_selectOption");
	dojo.event.connect(this.optionsListNode, "onmouseover", this, "_onMouseOver");
	dojo.event.connect(this.optionsListNode, "onmouseout", this, "_onMouseOut");
	dojo.event.connect(this.optionsListNode, "onmouseover", this, "_itemMouseOver");
	dojo.event.connect(this.optionsListNode, "onmouseout", this, "_itemMouseOut");
}, _openResultList:function (results) {
	if (this.disabled) {
		return;
	}
	this._clearResultList();
	if (!results.length) {
		this._hideResultList();
	}
	if ((this.autoComplete) && (results.length) && (!this._prev_key_backspace) && (this.textInputNode.value.length > 0)) {
		var cpos = this._getCaretPos(this.textInputNode);
		if ((cpos + 1) > this.textInputNode.value.length) {
			this.textInputNode.value += results[0][0].substr(cpos);
			this._setSelectedRange(this.textInputNode, cpos, this.textInputNode.value.length);
		}
	}
	var even = true;
	while (results.length) {
		var tr = results.shift();
		if (tr) {
			var td = document.createElement("div");
			td.appendChild(document.createTextNode(tr[0]));
			td.setAttribute("resultName", tr[0]);
			td.setAttribute("resultValue", tr[1]);
			td.className = "dojoComboBoxItem " + ((even) ? "dojoComboBoxItemEven" : "dojoComboBoxItemOdd");
			even = (!even);
			this.optionsListNode.appendChild(td);
		}
	}
	this._showResultList();
}, _onFocusInput:function () {
	this._hasFocus = true;
}, _onBlurInput:function () {
	this._hasFocus = false;
	this._handleBlurTimer(true, 500);
}, _handleBlurTimer:function (clear, millisec) {
	if (this.blurTimer && (clear || millisec)) {
		clearTimeout(this.blurTimer);
	}
	if (millisec) {
		this.blurTimer = dojo.lang.setTimeout(this, "_checkBlurred", millisec);
	}
}, _onMouseOver:function (evt) {
	if (!this._mouseover_list) {
		this._handleBlurTimer(true, 0);
		this._mouseover_list = true;
	}
}, _onMouseOut:function (evt) {
	var relTarget = evt.relatedTarget;
	try {
		if (!relTarget || relTarget.parentNode != this.optionsListNode) {
			this._mouseover_list = false;
			this._handleBlurTimer(true, 100);
			this._tryFocus();
		}
	}
	catch (e) {
	}
}, _isInputEqualToResult:function (result) {
	var input = this.textInputNode.value;
	if (!this.dataProvider.caseSensitive) {
		input = input.toLowerCase();
		result = result.toLowerCase();
	}
	return (input == result);
}, _isValidOption:function () {
	var tgt = dojo.html.firstElement(this.optionsListNode);
	var isValidOption = false;
	while (!isValidOption && tgt) {
		if (this._isInputEqualToResult(tgt.getAttribute("resultName"))) {
			isValidOption = true;
		} else {
			tgt = dojo.html.nextElement(tgt);
		}
	}
	return isValidOption;
}, _checkBlurred:function () {
	if (!this._hasFocus && !this._mouseover_list) {
		this._hideResultList();
		if (!this.textInputNode.value.length) {
			this.setAllValues("", "");
			return;
		}
		var isValidOption = this._isValidOption();
		if (this.forceValidOption && !isValidOption) {
			this.setAllValues("", "");
			return;
		}
		if (!isValidOption) {
			this.setSelectedValue("");
		}
	}
}, _selectOption:function (evt) {
	var tgt = null;
	if (!evt) {
		evt = {target:this._highlighted_option};
	}
	if (!dojo.html.isDescendantOf(evt.target, this.optionsListNode)) {
		if (!this.textInputNode.value.length) {
			return;
		}
		tgt = dojo.html.firstElement(this.optionsListNode);
		if (!tgt || !this._isInputEqualToResult(tgt.getAttribute("resultName"))) {
			return;
		}
	} else {
		tgt = evt.target;
	}
	while ((tgt.nodeType != 1) || (!tgt.getAttribute("resultName"))) {
		tgt = tgt.parentNode;
		if (tgt === dojo.body()) {
			return false;
		}
	}
	this.selectedResult = [tgt.getAttribute("resultName"), tgt.getAttribute("resultValue")];
	this.setAllValues(tgt.getAttribute("resultName"), tgt.getAttribute("resultValue"));
	if (!evt.noHide) {
		this._hideResultList();
		this._setSelectedRange(this.textInputNode, 0, null);
	}
	this._tryFocus();
}, _clearResultList:function () {
	if (this.optionsListNode.innerHTML) {
		this.optionsListNode.innerHTML = "";
	}
}, _hideResultList:function () {
	this.popupWidget.close();
}, _showResultList:function () {
	var childs = this.optionsListNode.childNodes;
	if (childs.length) {
		var visibleCount = Math.min(childs.length, this.maxListLength);
		with (this.optionsListNode.style) {
			display = "";
			if (visibleCount == childs.length) {
				height = "";
			} else {
				height = visibleCount * dojo.html.getMarginBox(childs[0]).height + "px";
			}
			width = (dojo.html.getMarginBox(this.domNode).width - 2) + "px";
		}
		this.popupWidget.open(this.domNode, this, this.downArrowNode);
	} else {
		this._hideResultList();
	}
}, handleArrowClick:function () {
	this._handleBlurTimer(true, 0);
	this._tryFocus();
	if (this.popupWidget.isShowingNow) {
		this._hideResultList();
	} else {
		this._startSearch("");
	}
}, _tryFocus:function () {
	try {
		this.textInputNode.focus();
	}
	catch (e) {
	}
}, _startSearchFromInput:function () {
	this._startSearch(this.textInputNode.value);
}, _startSearch:function (key) {
	this.dataProvider.startSearch(key, dojo.lang.hitch(this, "_openResultList"));
}, postCreate:function () {
	this.onResize();
	dojo.event.connect(this.textInputNode, "onblur", this, "_onBlurInput");
	dojo.event.connect(this.textInputNode, "onfocus", this, "_onFocusInput");
	if (this.disabled) {
		this.disable();
	}
	var s = dojo.widget.html.stabile.getState(this.widgetId);
	if (s) {
		this.setState(s);
	}
}});