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/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.widget.ComboBox");
dojo.require("dojo.widget.*");
dojo.require("dojo.event.*");
dojo.require("dojo.io.*");
dojo.require("dojo.html.*");
dojo.require("dojo.string");
dojo.require("dojo.widget.html.stabile");
dojo.require("dojo.widget.PopupContainer");
dojo.declare("dojo.widget.incrementalComboBoxDataProvider", null, function (options) {
this.searchUrl = options.dataUrl;
this._cache = {};
this._inFlight = false;
this._lastRequest = null;
this.allowCache = false;
}, {_addToCache:function (keyword, data) {
if (this.allowCache) {
this._cache[keyword] = data;
}
}, startSearch:function (searchStr, callback) {
if (this._inFlight) {
}
var tss = encodeURIComponent(searchStr);
var realUrl = dojo.string.substituteParams(this.searchUrl, {"searchString":tss});
var _this = this;
var request = this._lastRequest = dojo.io.bind({url:realUrl, method:"get", mimetype:"text/json", load:function (type, data, evt) {
_this._inFlight = false;
if (!dojo.lang.isArray(data)) {
var arrData = [];
for (var key in data) {
arrData.push([data[key], key]);
}
data = arrData;
}
_this._addToCache(searchStr, data);
if (request == _this._lastRequest) {
callback(data);
}
}});
this._inFlight = true;
}});
dojo.declare("dojo.widget.basicComboBoxDataProvider", null, function (options, node) {
this._data = [];
this.searchLimit = 30;
this.searchType = "STARTSTRING";
this.caseSensitive = false;
if (!dj_undef("dataUrl", options) && !dojo.string.isBlank(options.dataUrl)) {
this._getData(options.dataUrl);
} else {
if ((node) && (node.nodeName.toLowerCase() == "select")) {
var opts = node.getElementsByTagName("option");
var ol = opts.length;
var data = [];
for (var x = 0; x < ol; x++) {
var text = opts[x].textContent || opts[x].innerText || opts[x].innerHTML;
var keyValArr = [String(text), String(opts[x].value)];
data.push(keyValArr);
if (opts[x].selected) {
options.setAllValues(keyValArr[0], keyValArr[1]);
}
}
this.setData(data);
}
}
}, {_getData:function (url) {
dojo.io.bind({url:url, load:dojo.lang.hitch(this, function (type, data, evt) {
if (!dojo.lang.isArray(data)) {
var arrData = [];
for (var key in data) {
arrData.push([data[key], key]);
}
data = arrData;
}
this.setData(data);
}), mimetype:"text/json"});
}, startSearch:function (searchStr, callback) {
this._performSearch(searchStr, callback);
}, _performSearch:function (searchStr, callback) {
var st = this.searchType;
var ret = [];
if (!this.caseSensitive) {
searchStr = searchStr.toLowerCase();
}
for (var x = 0; x < this._data.length; x++) {
if ((this.searchLimit > 0) && (ret.length >= this.searchLimit)) {
break;
}
var dataLabel = new String((!this.caseSensitive) ? this._data[x][0].toLowerCase() : this._data[x][0]);
if (dataLabel.length < searchStr.length) {
continue;
}
if (st == "STARTSTRING") {
if (searchStr == dataLabel.substr(0, searchStr.length)) {
ret.push(this._data[x]);
}
} else {
if (st == "SUBSTRING") {
if (dataLabel.indexOf(searchStr) >= 0) {
ret.push(this._data[x]);
}
} else {
if (st == "STARTWORD") {
var idx = dataLabel.indexOf(searchStr);
if (idx == 0) {
ret.push(this._data[x]);
}
if (idx <= 0) {
continue;
}
var matches = false;
while (idx != -1) {
if (" ,/(".indexOf(dataLabel.charAt(idx - 1)) != -1) {
matches = true;
break;
}
idx = dataLabel.indexOf(searchStr, idx + 1);
}
if (!matches) {
continue;
} else {
ret.push(this._data[x]);
}
}
}
}
}
callback(ret);
}, setData:function (pdata) {
this._data = pdata;
}});
dojo.widget.defineWidget("dojo.widget.ComboBox", dojo.widget.HtmlWidget, {forceValidOption:false, searchType:"stringstart", dataProvider:null, autoComplete:true, searchDelay:100, dataUrl:"", fadeTime:200, maxListLength:8, mode:"local", selectedResult:null, dataProviderClass:"", buttonSrc:dojo.uri.moduleUri("dojo.widget", "templates/images/combo_box_arrow.png"), dropdownToggle:"fade", templateString:"<span _=\"whitespace and CR's between tags adds in FF\"\n\tclass=\"dojoComboBoxOuter\"\n\t><input style=\"display:none\" tabindex=\"-1\" name=\"\" value=\"\" \n\t\tdojoAttachPoint=\"comboBoxValue\"\n\t><input style=\"display:none\" tabindex=\"-1\" name=\"\" value=\"\" \n\t\tdojoAttachPoint=\"comboBoxSelectionValue\"\n\t><input type=\"text\" autocomplete=\"off\" class=\"dojoComboBox\"\n\t\tdojoAttachEvent=\"key:_handleKeyEvents; keyUp: onKeyUp; compositionEnd; onResize;\"\n\t\tdojoAttachPoint=\"textInputNode\"\n\t><img hspace=\"0\"\n\t\tvspace=\"0\"\n\t\tclass=\"dojoComboBox\"\n\t\tdojoAttachPoint=\"downA
rrowNode\"\n\t\tdojoAttachEvent=\"onMouseUp: handleArrowClick; onResize;\"\n\t\tsrc=\"${this.buttonSrc}\"\n></span>\n", templateCssString:".dojoComboBoxOuter {\n\tborder: 0px !important;\n\tmargin: 0px !important;\n\tpadding: 0px !important;\n\tbackground: transparent !important;\n\twhite-space: nowrap !important;\n}\n\n.dojoComboBox {\n\tborder: 1px inset #afafaf;\n\tmargin: 0px;\n\tpadding: 0px;\n\tvertical-align: middle !important;\n\tfloat: none !important;\n\tposition: static !important;\n\tdisplay: inline !important;\n}\n\n/* the input box */\ninput.dojoComboBox {\n\tborder-right-width: 0px !important; \n\tmargin-right: 0px !important;\n\tpadding-right: 0px !important;\n}\n\n/* the down arrow */\nimg.dojoComboBox {\n\tborder-left-width: 0px !important;\n\tpadding-left: 0px !important;\n\tmargin-left: 0px !important;\n}\n\n/* IE vertical-alignment calculations can be off by +-1 but these margins are collapsed away */\n.dj_ie img.dojoComboBox {\n\tmargin-top: 1px; \n\tmargin-bottom: 1px; \n}\n\n/* the dr
op down */\n.dojoComboBoxOptions {\n\tfont-family: Verdana, Helvetica, Garamond, sans-serif;\n\t/* font-size: 0.7em; */\n\tbackground-color: white;\n\tborder: 1px solid #afafaf;\n\tposition: absolute;\n\tz-index: 1000; \n\toverflow: auto;\n\tcursor: default;\n}\n\n.dojoComboBoxItem {\n\tpadding-left: 2px;\n\tpadding-top: 2px;\n\tmargin: 0px;\n}\n\n.dojoComboBoxItemEven {\n\tbackground-color: #f4f4f4;\n}\n\n.dojoComboBoxItemOdd {\n\tbackground-color: white;\n}\n\n.dojoComboBoxItemHighlight {\n\tbackground-color: #63709A;\n\tcolor: white;\n}\n", templateCssPath:dojo.uri.moduleUri("dojo.widget", "templates/ComboBox.css"), setValue:function (value) {
this.comboBoxValue.value = value;
if (this.textInputNode.value != value) {
this.textInputNode.value = value;
dojo.widget.html.stabile.setState(this.widgetId, this.getState(), true);
this.onValueChanged(value);
}
}, onValueChanged:function (value) {
}, getValue:function () {
return this.comboBoxValue.value;
}, getState:function () {
return {value:this.getValue()};
}, setState:function (state) {
this.setValue(state.value);
}, enable:function () {
this.disabled = false;
this.textInputNode.removeAttribute("disabled");
}, disable:function () {
this.disabled = true;
this.textInputNode.setAttribute("disabled", true);
}, _getCaretPos:function (element) {
if (dojo.lang.isNumber(element.selectionStart)) {
return element.selectionStart;
} else {
if (dojo.render.html.ie) {
var tr = document.selection.createRange().duplicate();
var ntr = element.createTextRange();
tr.move("character", 0);
ntr.move("character", 0);
try {
ntr.setEndPoint("EndToEnd", tr);
return String(ntr.text).replace(/\r/g, "").length;
}
catch (e) {
return 0;
}
}
}
}, _setCaretPos:function (element, location) {
location = parseInt(location);
this._setSelectedRange(element, location, location);
}, _setSelectedRange:function (element, start, end) {
if (!end) {
end = element.value.length;
}
if (element.setSelectionRange) {
element.focus();
element.setSelectionRange(start, end);
} else {
if (element.createTextRange) {
var range = element.createTextRange();
with (range) {
collapse(true);
moveEnd("character", end);
moveStart("character", start);
select();
}
} else {
element.value = element.value;
element.blur();
element.focus();
var dist = parseInt(element.value.length) - end;
var tchar = String.fromCharCode(37);
var tcc = tchar.charCodeAt(0);
for (var x = 0; x < dist; x++) {
var te = document.createEvent("KeyEvents");
te.initKeyEvent("keypress", true, true, null, false, false, false, false, tcc, tcc);
element.dispatchEvent(te);
}
}
}
}, _handleKeyEvents:function (evt) {
if (evt.ctrlKey || evt.altKey || !evt.key) {
return;
}
this._prev_key_backspace = false;
this._prev_key_esc = false;
var k = dojo.event.browser.keys;
var doSearch = true;
switch (evt.key) {
case k.KEY_DOWN_ARROW:
if (!this.popupWidget.isShowingNow) {
this._startSearchFromInput();
}
this._highlightNextOption();
dojo.event.browser.stopEvent(evt);
return;
case k.KEY_UP_ARROW:
this._highlightPrevOption();
dojo.event.browser.stopEvent(evt);
return;
case k.KEY_TAB:
if (!this.autoComplete && this.popupWidget.isShowingNow && this._highlighted_option) {
dojo.event.browser.stopEvent(evt);
this._selectOption({"target":this._highlighted_option, "noHide":false});
this._setSelectedRange(this.textInputNode, this.textInputNode.value.length, null);
} else {
this._selectOption();
return;
}
break;
case k.KEY_ENTER:
if (this.popupWidget.isShowingNow) {
dojo.event.browser.stopEvent(evt);
}
if (this.autoComplete) {
this._selectOption();
return;
}
case " ":
if (this.popupWidget.isShowingNow && this._highlighted_option) {
dojo.event.browser.stopEvent(evt);
this._selectOption();
this._hideResultList();
return;
}
break;
case k.KEY_ESCAPE:
this._hideResultList();
this._prev_key_esc = true;
return;
case k.KEY_BACKSPACE:
this._prev_key_backspace = true;
if (!this.textInputNode.value.length) {
this.setAllValues("", "");
this._hideResultList();
doSearch = false;
}
break;
case k.KEY_RIGHT_ARROW:
case k.KEY_LEFT_ARROW:
doSearch = false;
break;
default:
if (evt.charCode == 0) {
doSearch = false;
}
}
if (this.searchTimer) {
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);
}
}});