|
Line 0
Link Here
|
|
|
1 |
;(function($) { |
| 2 |
/* |
| 3 |
* ui.dropdownchecklist |
| 4 |
* |
| 5 |
* Copyright (c) 2008-2010 Adrian Tosca, Copyright (c) 2010-2011 Ittrium LLC |
| 6 |
* Dual licensed under the MIT (MIT-LICENSE.txt) OR GPL (GPL-LICENSE.txt) licenses. |
| 7 |
* |
| 8 |
*/ |
| 9 |
// The dropdown check list jQuery plugin transforms a regular select html element into a dropdown check list. |
| 10 |
$.widget("ui.dropdownchecklist", { |
| 11 |
// Some globlals |
| 12 |
// $.ui.dropdownchecklist.gLastOpened - keeps track of last opened dropdowncheck list so we can close it |
| 13 |
// $.ui.dropdownchecklist.gIDCounter - simple counter to provide a unique ID as needed |
| 14 |
version: function() { |
| 15 |
alert('DropDownCheckList v1.4'); |
| 16 |
}, |
| 17 |
// Creates the drop container that keeps the items and appends it to the document |
| 18 |
_appendDropContainer: function( controlItem ) { |
| 19 |
var wrapper = $("<div/>"); |
| 20 |
// the container is wrapped in a div |
| 21 |
wrapper.addClass("ui-dropdownchecklist ui-dropdownchecklist-dropcontainer-wrapper"); |
| 22 |
wrapper.addClass("ui-widget"); |
| 23 |
// assign an id |
| 24 |
wrapper.attr("id",controlItem.attr("id") + '-ddw'); |
| 25 |
// initially positioned way off screen to prevent it from displaying |
| 26 |
// NOTE absolute position to enable width/height calculation |
| 27 |
wrapper.css({ position: 'absolute', left: "-33000px", top: "-33000px" }); |
| 28 |
|
| 29 |
var container = $("<div/>"); // the actual container |
| 30 |
container.addClass("ui-dropdownchecklist-dropcontainer ui-widget-content"); |
| 31 |
container.css("overflow-y", "auto"); |
| 32 |
wrapper.append(container); |
| 33 |
|
| 34 |
// insert the dropdown after the master control to try to keep the tab order intact |
| 35 |
// if you just add it to the end, tabbing out of the drop down takes focus off the page |
| 36 |
// @todo 22Sept2010 - check if size calculation is thrown off if the parent of the |
| 37 |
// selector is hidden. We may need to add it to the end of the document here, |
| 38 |
// calculate the size, and then move it back into proper position??? |
| 39 |
//$(document.body).append(wrapper); |
| 40 |
wrapper.insertAfter(controlItem); |
| 41 |
|
| 42 |
// flag that tells if the drop container is shown or not |
| 43 |
wrapper.isOpen = false; |
| 44 |
return wrapper; |
| 45 |
}, |
| 46 |
// Look for browser standard 'open' on a closed selector |
| 47 |
_isDropDownKeyShortcut: function(e,keycode) { |
| 48 |
return e.altKey && ($.ui.keyCode.DOWN == keycode);// Alt + Down Arrow |
| 49 |
}, |
| 50 |
// Look for key that will tell us to close the open dropdown |
| 51 |
_isDropDownCloseKey: function(e,keycode) { |
| 52 |
return ($.ui.keyCode.ESCAPE == keycode) || ($.ui.keyCode.ENTER == keycode); |
| 53 |
}, |
| 54 |
// Handler to change the active focus based on a keystroke, moving some count of |
| 55 |
// items from the element that has the current focus |
| 56 |
_keyFocusChange: function(target,delta,limitToItems) { |
| 57 |
// Find item with current focus |
| 58 |
var focusables = $(":focusable"); |
| 59 |
var index = focusables.index(target); |
| 60 |
if ( index >= 0 ) { |
| 61 |
index += delta; |
| 62 |
if ( limitToItems ) { |
| 63 |
// Bound change to list of input elements |
| 64 |
var allCheckboxes = this.dropWrapper.find("input:not([disabled])"); |
| 65 |
var firstIndex = focusables.index(allCheckboxes.get(0)); |
| 66 |
var lastIndex = focusables.index(allCheckboxes.get(allCheckboxes.length-1)); |
| 67 |
if ( index < firstIndex ) { |
| 68 |
index = lastIndex; |
| 69 |
} else if ( index > lastIndex ) { |
| 70 |
index = firstIndex; |
| 71 |
} |
| 72 |
} |
| 73 |
focusables.get(index).focus(); |
| 74 |
} |
| 75 |
}, |
| 76 |
// Look for navigation, open, close (wired to keyup) |
| 77 |
_handleKeyboard: function(e) { |
| 78 |
var self = this; |
| 79 |
var keyCode = (e.keyCode || e.which); |
| 80 |
if (!self.dropWrapper.isOpen && self._isDropDownKeyShortcut(e, keyCode)) { |
| 81 |
// Key command to open the dropdown |
| 82 |
e.stopImmediatePropagation(); |
| 83 |
self._toggleDropContainer(true); |
| 84 |
} else if (self.dropWrapper.isOpen && self._isDropDownCloseKey(e, keyCode)) { |
| 85 |
// Key command to close the dropdown (but we retain focus in the control) |
| 86 |
e.stopImmediatePropagation(); |
| 87 |
self._toggleDropContainer(false); |
| 88 |
self.controlSelector.focus(); |
| 89 |
} else if (self.dropWrapper.isOpen |
| 90 |
&& (e.target.type == 'checkbox') |
| 91 |
&& ((keyCode == $.ui.keyCode.DOWN) || (keyCode == $.ui.keyCode.UP)) ) { |
| 92 |
// Up/Down to cycle throught the open items |
| 93 |
e.stopImmediatePropagation(); |
| 94 |
self._keyFocusChange(e.target, (keyCode == $.ui.keyCode.DOWN) ? 1 : -1, true); |
| 95 |
} else if (self.dropWrapper.isOpen && (keyCode == $.ui.keyCode.TAB) ) { |
| 96 |
// I wanted to adjust normal 'tab' processing here, but research indicates |
| 97 |
// that TAB key processing is NOT a cancelable event. You have to use a timer |
| 98 |
// hack to pull the focus back to where you want it after browser tab |
| 99 |
// processing completes. Not going to work for us. |
| 100 |
//e.stopImmediatePropagation(); |
| 101 |
//self._keyFocusChange(e.target, (e.shiftKey) ? -1 : 1, true); |
| 102 |
} |
| 103 |
}, |
| 104 |
// Look for change of focus |
| 105 |
_handleFocus: function(e,focusIn,forDropdown) { |
| 106 |
var self = this; |
| 107 |
if (forDropdown && !self.dropWrapper.isOpen) { |
| 108 |
// if the focus changes when the control is NOT open, mark it to show where the focus is/is not |
| 109 |
e.stopImmediatePropagation(); |
| 110 |
if (focusIn) { |
| 111 |
self.controlSelector.addClass("ui-state-hover"); |
| 112 |
if ($.ui.dropdownchecklist.gLastOpened != null) { |
| 113 |
$.ui.dropdownchecklist.gLastOpened._toggleDropContainer( false ); |
| 114 |
} |
| 115 |
} else { |
| 116 |
self.controlSelector.removeClass("ui-state-hover"); |
| 117 |
} |
| 118 |
} else if (!forDropdown && !focusIn) { |
| 119 |
// The dropdown is open, and an item (NOT the dropdown) has just lost the focus. |
| 120 |
// we really need a reliable method to see who has the focus as we process the blur, |
| 121 |
// but that mechanism does not seem to exist. Instead we rely on a delay before |
| 122 |
// posting the blur, with a focus event cancelling it before the delay expires. |
| 123 |
if ( e != null ) { e.stopImmediatePropagation(); } |
| 124 |
self.controlSelector.removeClass("ui-state-hover"); |
| 125 |
self._toggleDropContainer( false ); |
| 126 |
} |
| 127 |
}, |
| 128 |
// Clear the pending change of focus, which keeps us 'in' the control |
| 129 |
_cancelBlur: function(e) { |
| 130 |
var self = this; |
| 131 |
if (self.blurringItem != null) { |
| 132 |
clearTimeout(self.blurringItem); |
| 133 |
self.blurringItem = null; |
| 134 |
} |
| 135 |
}, |
| 136 |
// Creates the control that will replace the source select and appends it to the document |
| 137 |
// The control resembles a regular select with single selection |
| 138 |
_appendControl: function() { |
| 139 |
var self = this, sourceSelect = this.sourceSelect, options = this.options; |
| 140 |
|
| 141 |
// the control is wrapped in a basic container |
| 142 |
// inline-block at this level seems to give us better size control |
| 143 |
var wrapper = $("<span/>"); |
| 144 |
wrapper.addClass("ui-dropdownchecklist ui-dropdownchecklist-selector-wrapper ui-widget"); |
| 145 |
wrapper.css( { display: "inline-block", cursor: "default", overflow: "hidden" } ); |
| 146 |
|
| 147 |
// assign an ID |
| 148 |
var baseID = sourceSelect.attr("id"); |
| 149 |
if ((baseID == null) || (baseID == "")) { |
| 150 |
baseID = "ddcl-" + $.ui.dropdownchecklist.gIDCounter++; |
| 151 |
} else { |
| 152 |
baseID = "ddcl-" + baseID; |
| 153 |
} |
| 154 |
wrapper.attr("id",baseID); |
| 155 |
|
| 156 |
// the actual control which you can style |
| 157 |
// inline-block needed to enable 'width' but has interesting problems cross browser |
| 158 |
var control = $("<span/>"); |
| 159 |
control.addClass("ui-dropdownchecklist-selector ui-state-default"); |
| 160 |
control.css( { display: "inline-block", overflow: "hidden", 'white-space': 'nowrap'} ); |
| 161 |
// Setting a tab index means we are interested in the tab sequence |
| 162 |
var tabIndex = sourceSelect.attr("tabIndex"); |
| 163 |
if ( tabIndex == null ) { |
| 164 |
tabIndex = 0; |
| 165 |
} else { |
| 166 |
tabIndex = parseInt(tabIndex); |
| 167 |
if ( tabIndex < 0 ) { |
| 168 |
tabIndex = 0; |
| 169 |
} |
| 170 |
} |
| 171 |
control.attr("tabIndex", tabIndex); |
| 172 |
control.keyup(function(e) {self._handleKeyboard(e);}); |
| 173 |
control.focus(function(e) {self._handleFocus(e,true,true);}); |
| 174 |
control.blur(function(e) {self._handleFocus(e,false,true);}); |
| 175 |
wrapper.append(control); |
| 176 |
|
| 177 |
// the optional icon (which is inherently a block) which we can float |
| 178 |
if (options.icon != null) { |
| 179 |
var iconPlacement = (options.icon.placement == null) ? "left" : options.icon.placement; |
| 180 |
var anIcon = $("<div/>"); |
| 181 |
anIcon.addClass("ui-icon"); |
| 182 |
anIcon.addClass( (options.icon.toOpen != null) ? options.icon.toOpen : "ui-icon-triangle-1-e"); |
| 183 |
anIcon.css({ 'float': iconPlacement }); |
| 184 |
control.append(anIcon); |
| 185 |
} |
| 186 |
// the text container keeps the control text that is built from the selected (checked) items |
| 187 |
// inline-block needed to prevent long text from wrapping to next line when icon is active |
| 188 |
var textContainer = $("<span/>"); |
| 189 |
textContainer.addClass("ui-dropdownchecklist-text"); |
| 190 |
textContainer.css( { display: "inline-block", 'white-space': "nowrap", overflow: "hidden" } ); |
| 191 |
control.append(textContainer); |
| 192 |
|
| 193 |
// add the hover styles to the control |
| 194 |
wrapper.hover( |
| 195 |
function() { |
| 196 |
if (!self.disabled) { |
| 197 |
control.addClass("ui-state-hover"); |
| 198 |
} |
| 199 |
} |
| 200 |
, function() { |
| 201 |
if (!self.disabled) { |
| 202 |
control.removeClass("ui-state-hover"); |
| 203 |
} |
| 204 |
} |
| 205 |
); |
| 206 |
// clicking on the control toggles the drop container |
| 207 |
wrapper.click(function(event) { |
| 208 |
if (!self.disabled) { |
| 209 |
event.stopImmediatePropagation(); |
| 210 |
self._toggleDropContainer( !self.dropWrapper.isOpen ); |
| 211 |
} |
| 212 |
}); |
| 213 |
wrapper.insertAfter(sourceSelect); |
| 214 |
|
| 215 |
// Watch for a window resize and adjust the control if open |
| 216 |
$(window).resize(function() { |
| 217 |
if (!self.disabled && self.dropWrapper.isOpen) { |
| 218 |
// Reopen yourself to get the position right |
| 219 |
self._toggleDropContainer(true); |
| 220 |
} |
| 221 |
}); |
| 222 |
return wrapper; |
| 223 |
}, |
| 224 |
// Creates a drop item that coresponds to an option element in the source select |
| 225 |
_createDropItem: function(index, tabIndex, value, text, optCss, checked, disabled, indent) { |
| 226 |
var self = this, options = this.options, sourceSelect = this.sourceSelect, controlWrapper = this.controlWrapper; |
| 227 |
// the item contains a div that contains a checkbox input and a lable for the text |
| 228 |
// the div |
| 229 |
var item = $("<div/>"); |
| 230 |
item.addClass("ui-dropdownchecklist-item"); |
| 231 |
item.css({'white-space': "nowrap"}); |
| 232 |
var checkedString = checked ? ' checked="checked"' : ''; |
| 233 |
var classString = disabled ? ' class="inactive"' : ' class="active"'; |
| 234 |
|
| 235 |
// generated id must be a bit unique to keep from colliding |
| 236 |
var idBase = controlWrapper.attr("id"); |
| 237 |
var id = idBase + '-i' + index; |
| 238 |
var checkBox; |
| 239 |
|
| 240 |
// all items start out disabled to keep them out of the tab order |
| 241 |
if (self.isMultiple) { // the checkbox |
| 242 |
checkBox = $('<input disabled type="checkbox" id="' + id + '"' + checkedString + classString + ' tabindex="' + tabIndex + '" />'); |
| 243 |
} else { // the radiobutton |
| 244 |
checkBox = $('<input disabled type="radio" id="' + id + '" name="' + idBase + '"' + checkedString + classString + ' tabindex="' + tabIndex + '" />'); |
| 245 |
} |
| 246 |
checkBox = checkBox.attr("index", index).val(value); |
| 247 |
item.append(checkBox); |
| 248 |
|
| 249 |
// the text |
| 250 |
var label = $("<label for=" + id + "/>"); |
| 251 |
label.addClass("ui-dropdownchecklist-text"); |
| 252 |
if ( optCss != null ) label.attr('style',optCss); |
| 253 |
label.css({ cursor: "default" }); |
| 254 |
label.html(text); |
| 255 |
if (indent) { |
| 256 |
item.addClass("ui-dropdownchecklist-indent"); |
| 257 |
} |
| 258 |
item.addClass("ui-state-default"); |
| 259 |
if (disabled) { |
| 260 |
item.addClass("ui-state-disabled"); |
| 261 |
} |
| 262 |
label.click(function(e) {e.stopImmediatePropagation();}); |
| 263 |
item.append(label); |
| 264 |
|
| 265 |
// active items display themselves with hover |
| 266 |
item.hover( |
| 267 |
function(e) { |
| 268 |
var anItem = $(this); |
| 269 |
if (!anItem.hasClass("ui-state-disabled")) { anItem.addClass("ui-state-hover"); } |
| 270 |
} |
| 271 |
, function(e) { |
| 272 |
var anItem = $(this); |
| 273 |
anItem.removeClass("ui-state-hover"); |
| 274 |
} |
| 275 |
); |
| 276 |
// clicking on the checkbox synchronizes the source select |
| 277 |
checkBox.click(function(e) { |
| 278 |
var aCheckBox = $(this); |
| 279 |
e.stopImmediatePropagation(); |
| 280 |
if (aCheckBox.hasClass("active") ) { |
| 281 |
// Active checkboxes take active action |
| 282 |
var callback = self.options.onItemClick; |
| 283 |
if ($.isFunction(callback)) try { |
| 284 |
callback.call(self,aCheckBox,sourceSelect.get(0)); |
| 285 |
} catch (ex) { |
| 286 |
// reject the change on any error |
| 287 |
aCheckBox.prop("checked",!aCheckBox.prop("checked")); |
| 288 |
self._syncSelected(aCheckBox); |
| 289 |
return; |
| 290 |
} |
| 291 |
self._syncSelected(aCheckBox); |
| 292 |
self.sourceSelect.trigger("change", 'ddcl_internal'); |
| 293 |
if (!self.isMultiple && options.closeRadioOnClick) { |
| 294 |
self._toggleDropContainer(false); |
| 295 |
} |
| 296 |
} |
| 297 |
}); |
| 298 |
// we are interested in the focus leaving the check box |
| 299 |
// but we need to detect the focus leaving one check box but |
| 300 |
// entering another. There is no reliable way to detect who |
| 301 |
// received the focus on a blur, so post the blur in the future, |
| 302 |
// knowing we will cancel it if we capture the focus in a timely manner |
| 303 |
// 23Sept2010 - unfortunately, IE 7+ and Chrome like to post a blur |
| 304 |
// event to the current item with focus when the user |
| 305 |
// clicks in the scroll bar. So if you have a scrollable |
| 306 |
// dropdown with focus on an item, clicking in the scroll |
| 307 |
// will close the drop down. |
| 308 |
// I have no solution for blur processing at this time. |
| 309 |
/********* |
| 310 |
var timerFunction = function(){ |
| 311 |
// I had a hell of a time getting setTimeout to fire this, do not try to |
| 312 |
// define it within the blur function |
| 313 |
try { self._handleFocus(null,false,false); } catch(ex){ alert('timer failed: '+ex);} |
| 314 |
}; |
| 315 |
checkBox.blur(function(e) { |
| 316 |
self.blurringItem = setTimeout( timerFunction, 200 ); |
| 317 |
}); |
| 318 |
checkBox.focus(function(e) {self._cancelBlur();}); |
| 319 |
**********/ |
| 320 |
// check/uncheck the item on clicks on the entire item div |
| 321 |
item.click(function(e) { |
| 322 |
var anItem = $(this); |
| 323 |
e.stopImmediatePropagation(); |
| 324 |
if (!anItem.hasClass("ui-state-disabled") ) { |
| 325 |
// check/uncheck the underlying control |
| 326 |
var aCheckBox = anItem.find("input"); |
| 327 |
var checked = aCheckBox.prop("checked"); |
| 328 |
aCheckBox.prop("checked", !checked); |
| 329 |
|
| 330 |
var callback = self.options.onItemClick; |
| 331 |
if ($.isFunction(callback)) try { |
| 332 |
callback.call(self,aCheckBox,sourceSelect.get(0)); |
| 333 |
} catch (ex) { |
| 334 |
// reject the change on any error |
| 335 |
aCheckBox.prop("checked",checked); |
| 336 |
self._syncSelected(aCheckBox); |
| 337 |
return; |
| 338 |
} |
| 339 |
self._syncSelected(aCheckBox); |
| 340 |
self.sourceSelect.trigger("change", 'ddcl_internal'); |
| 341 |
if (!checked && !self.isMultiple && options.closeRadioOnClick) { |
| 342 |
self._toggleDropContainer(false); |
| 343 |
} |
| 344 |
} else { |
| 345 |
// retain the focus even if disabled |
| 346 |
anItem.focus(); |
| 347 |
self._cancelBlur(); |
| 348 |
} |
| 349 |
}); |
| 350 |
// do not let the focus wander around |
| 351 |
item.focus(function(e) { |
| 352 |
var anItem = $(this); |
| 353 |
e.stopImmediatePropagation(); |
| 354 |
}); |
| 355 |
item.keyup(function(e) {self._handleKeyboard(e);}); |
| 356 |
return item; |
| 357 |
}, |
| 358 |
_createGroupItem: function(text,disabled) { |
| 359 |
var self = this; |
| 360 |
var group = $("<div />"); |
| 361 |
group.addClass("ui-dropdownchecklist-group ui-widget-header"); |
| 362 |
if (disabled) { |
| 363 |
group.addClass("ui-state-disabled"); |
| 364 |
} |
| 365 |
group.css({'white-space': "nowrap"}); |
| 366 |
|
| 367 |
var label = $("<span/>"); |
| 368 |
label.addClass("ui-dropdownchecklist-text"); |
| 369 |
label.css( { cursor: "default" }); |
| 370 |
label.text(text); |
| 371 |
group.append(label); |
| 372 |
|
| 373 |
// anything interesting when you click the group??? |
| 374 |
group.click(function(e) { |
| 375 |
var aGroup= $(this); |
| 376 |
e.stopImmediatePropagation(); |
| 377 |
// retain the focus even if no action is taken |
| 378 |
aGroup.focus(); |
| 379 |
self._cancelBlur(); |
| 380 |
}); |
| 381 |
// do not let the focus wander around |
| 382 |
group.focus(function(e) { |
| 383 |
var aGroup = $(this); |
| 384 |
e.stopImmediatePropagation(); |
| 385 |
}); |
| 386 |
return group; |
| 387 |
}, |
| 388 |
_createCloseItem: function(text) { |
| 389 |
var self = this; |
| 390 |
var closeItem = $("<div />"); |
| 391 |
closeItem.addClass("ui-state-default ui-dropdownchecklist-close ui-dropdownchecklist-item"); |
| 392 |
closeItem.css({'white-space': 'nowrap', 'text-align': 'right'}); |
| 393 |
|
| 394 |
var label = $("<span/>"); |
| 395 |
label.addClass("ui-dropdownchecklist-text"); |
| 396 |
label.css( { cursor: "default" }); |
| 397 |
label.html(text); |
| 398 |
closeItem.append(label); |
| 399 |
|
| 400 |
// close the control on click |
| 401 |
closeItem.click(function(e) { |
| 402 |
var aGroup= $(this); |
| 403 |
e.stopImmediatePropagation(); |
| 404 |
// retain the focus even if no action is taken |
| 405 |
aGroup.focus(); |
| 406 |
self._toggleDropContainer( false ); |
| 407 |
}); |
| 408 |
closeItem.hover( |
| 409 |
function(e) { $(this).addClass("ui-state-hover"); } |
| 410 |
, function(e) { $(this).removeClass("ui-state-hover"); } |
| 411 |
); |
| 412 |
// do not let the focus wander around |
| 413 |
closeItem.focus(function(e) { |
| 414 |
var aGroup = $(this); |
| 415 |
e.stopImmediatePropagation(); |
| 416 |
}); |
| 417 |
return closeItem; |
| 418 |
}, |
| 419 |
// Creates the drop items and appends them to the drop container |
| 420 |
// Also calculates the size needed by the drop container and returns it |
| 421 |
_appendItems: function() { |
| 422 |
var self = this, config = this.options, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper; |
| 423 |
var dropContainerDiv = dropWrapper.find(".ui-dropdownchecklist-dropcontainer"); |
| 424 |
sourceSelect.children().each(function(index) { // when the select has groups |
| 425 |
var opt = $(this); |
| 426 |
if (opt.is("option")) { |
| 427 |
self._appendOption(opt, dropContainerDiv, index, false, false); |
| 428 |
} else if (opt.is("optgroup")) { |
| 429 |
var disabled = opt.prop("disabled"); |
| 430 |
var text = opt.attr("label"); |
| 431 |
if (text != "") { |
| 432 |
var group = self._createGroupItem(text,disabled); |
| 433 |
dropContainerDiv.append(group); |
| 434 |
} |
| 435 |
self._appendOptions(opt, dropContainerDiv, index, true, disabled); |
| 436 |
} |
| 437 |
}); |
| 438 |
if ( config.explicitClose != null ) { |
| 439 |
var closeItem = self._createCloseItem(config.explicitClose); |
| 440 |
dropContainerDiv.append(closeItem); |
| 441 |
} |
| 442 |
var divWidth = dropContainerDiv.outerWidth(); |
| 443 |
var divHeight = dropContainerDiv.outerHeight(); |
| 444 |
return { width: divWidth, height: divHeight }; |
| 445 |
}, |
| 446 |
_appendOptions: function(parent, container, parentIndex, indent, forceDisabled) { |
| 447 |
var self = this; |
| 448 |
parent.children("option").each(function(index) { |
| 449 |
var option = $(this); |
| 450 |
var childIndex = (parentIndex + "." + index); |
| 451 |
self._appendOption(option, container, childIndex, indent, forceDisabled); |
| 452 |
}); |
| 453 |
}, |
| 454 |
_appendOption: function(option, container, index, indent, forceDisabled) { |
| 455 |
var self = this; |
| 456 |
// Note that the browsers destroy any html structure within the OPTION |
| 457 |
var text = option.html(); |
| 458 |
if ( (text != null) && (text != '') ) { |
| 459 |
var value = option.val(); |
| 460 |
var optCss = option.attr('style'); |
| 461 |
var selected = option.prop("selected"); |
| 462 |
var disabled = (forceDisabled || option.prop("disabled")); |
| 463 |
// Use the same tab index as the selector replacement |
| 464 |
var tabIndex = self.controlSelector.attr("tabindex"); |
| 465 |
var item = self._createDropItem(index, tabIndex, value, text, optCss, selected, disabled, indent); |
| 466 |
container.append(item); |
| 467 |
} |
| 468 |
}, |
| 469 |
// Synchronizes the items checked and the source select |
| 470 |
// When firstItemChecksAll option is active also synchronizes the checked items |
| 471 |
// senderCheckbox parameters is the checkbox input that generated the synchronization |
| 472 |
_syncSelected: function(senderCheckbox) { |
| 473 |
var self = this, options = this.options, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper; |
| 474 |
var selectOptions = sourceSelect.get(0).options; |
| 475 |
var allCheckboxes = dropWrapper.find("input.active"); |
| 476 |
if (options.firstItemChecksAll == 'exclusive') { |
| 477 |
if ((senderCheckbox == null) && $(selectOptions[0]).prop("selected") ) { |
| 478 |
// Initialization call with first item active |
| 479 |
allCheckboxes.prop("checked", false); |
| 480 |
$(allCheckboxes[0]).prop("checked", true); |
| 481 |
} else if ((senderCheckbox != null) && (senderCheckbox.attr("index") == 0)) { |
| 482 |
// Action on the first, so all other checkboxes NOT active |
| 483 |
var firstIsActive = senderCheckbox.prop("checked"); |
| 484 |
allCheckboxes.prop("checked", false); |
| 485 |
$(allCheckboxes[0]).prop("checked", firstIsActive); |
| 486 |
} else { |
| 487 |
// check the first checkbox if all the other checkboxes are checked |
| 488 |
var allChecked = true; |
| 489 |
var firstCheckbox = null; |
| 490 |
allCheckboxes.each(function(index) { |
| 491 |
if (index > 0) { |
| 492 |
var checked = $(this).prop("checked"); |
| 493 |
if (!checked) { allChecked = false; } |
| 494 |
} else { |
| 495 |
firstCheckbox = $(this); |
| 496 |
} |
| 497 |
}); |
| 498 |
if ( firstCheckbox != null ) { |
| 499 |
if ( allChecked ) { |
| 500 |
// when all are checked, only the first left checked |
| 501 |
allCheckboxes.prop("checked", false); |
| 502 |
} |
| 503 |
firstCheckbox.prop("checked", allChecked ); |
| 504 |
} |
| 505 |
} |
| 506 |
} else if (options.firstItemChecksAll) { |
| 507 |
if ((senderCheckbox == null) && $(selectOptions[0]).prop("selected") ) { |
| 508 |
// Initialization call with first item active so force all to be active |
| 509 |
allCheckboxes.prop("checked", true); |
| 510 |
} else if ((senderCheckbox != null) && (senderCheckbox.attr("index") == 0)) { |
| 511 |
// Check all checkboxes if the first one is checked |
| 512 |
allCheckboxes.prop("checked", senderCheckbox.prop("checked")); |
| 513 |
} else { |
| 514 |
// check the first checkbox if all the other checkboxes are checked |
| 515 |
var allChecked = true; |
| 516 |
var firstCheckbox = null; |
| 517 |
allCheckboxes.each(function(index) { |
| 518 |
if (index > 0) { |
| 519 |
var checked = $(this).prop("checked"); |
| 520 |
if (!checked) { allChecked = false; } |
| 521 |
} else { |
| 522 |
firstCheckbox = $(this); |
| 523 |
} |
| 524 |
}); |
| 525 |
if ( firstCheckbox != null ) { |
| 526 |
firstCheckbox.prop("checked", allChecked ); |
| 527 |
} |
| 528 |
} |
| 529 |
} |
| 530 |
// do the actual synch with the source select |
| 531 |
var empties = 0; |
| 532 |
allCheckboxes = dropWrapper.find("input"); |
| 533 |
allCheckboxes.each(function(index) { |
| 534 |
var anOption = $(selectOptions[index + empties]); |
| 535 |
var optionText = anOption.html(); |
| 536 |
if ( (optionText == null) || (optionText == '') ) { |
| 537 |
empties += 1; |
| 538 |
anOption = $(selectOptions[index + empties]); |
| 539 |
} |
| 540 |
anOption.prop("selected", $(this).prop("checked")); |
| 541 |
}); |
| 542 |
// update the text shown in the control |
| 543 |
self._updateControlText(); |
| 544 |
|
| 545 |
// Ensure the focus stays pointing where the user is working |
| 546 |
if ( senderCheckbox != null) { senderCheckbox.focus(); } |
| 547 |
}, |
| 548 |
_sourceSelectChangeHandler: function(event) { |
| 549 |
var self = this, dropWrapper = this.dropWrapper; |
| 550 |
dropWrapper.find("input").val(self.sourceSelect.val()); |
| 551 |
|
| 552 |
// update the text shown in the control |
| 553 |
self._updateControlText(); |
| 554 |
}, |
| 555 |
// Updates the text shown in the control depending on the checked (selected) items |
| 556 |
_updateControlText: function() { |
| 557 |
var self = this, sourceSelect = this.sourceSelect, options = this.options, controlWrapper = this.controlWrapper; |
| 558 |
var firstOption = sourceSelect.find("option:first"); |
| 559 |
var selectOptions = sourceSelect.find("option"); |
| 560 |
var text = self._formatText(selectOptions, options.firstItemChecksAll, firstOption); |
| 561 |
var controlLabel = controlWrapper.find(".ui-dropdownchecklist-text"); |
| 562 |
controlLabel.html(text); |
| 563 |
// the attribute needs naked text, not html |
| 564 |
controlLabel.attr("title", controlLabel.text()); |
| 565 |
}, |
| 566 |
// Formats the text that is shown in the control |
| 567 |
_formatText: function(selectOptions, firstItemChecksAll, firstOption) { |
| 568 |
var text; |
| 569 |
if ( $.isFunction(this.options.textFormatFunction) ) { |
| 570 |
// let the callback do the formatting, but do not allow it to fail |
| 571 |
try { |
| 572 |
text = this.options.textFormatFunction(selectOptions); |
| 573 |
} catch(ex) { |
| 574 |
alert( 'textFormatFunction failed: ' + ex ); |
| 575 |
} |
| 576 |
} else if (firstItemChecksAll && (firstOption != null) && firstOption.prop("selected")) { |
| 577 |
// just set the text from the first item |
| 578 |
text = firstOption.html(); |
| 579 |
} else { |
| 580 |
// concatenate the text from the checked items |
| 581 |
text = ""; |
| 582 |
selectOptions.each(function() { |
| 583 |
if ($(this).prop("selected")) { |
| 584 |
if ( text != "" ) { text += ", "; } |
| 585 |
/* NOTE use of .html versus .text, which can screw up ampersands for IE */ |
| 586 |
var optCss = $(this).attr('style'); |
| 587 |
var tempspan = $('<span/>'); |
| 588 |
tempspan.html( $(this).html() ); |
| 589 |
if ( optCss == null ) { |
| 590 |
text += tempspan.html(); |
| 591 |
} else { |
| 592 |
tempspan.attr('style',optCss); |
| 593 |
text += $("<span/>").append(tempspan).html(); |
| 594 |
} |
| 595 |
} |
| 596 |
}); |
| 597 |
if ( text == "" ) { |
| 598 |
text = (this.options.emptyText != null) ? this.options.emptyText : " "; |
| 599 |
} |
| 600 |
} |
| 601 |
return text; |
| 602 |
}, |
| 603 |
// Shows and hides the drop container |
| 604 |
_toggleDropContainer: function( makeOpen ) { |
| 605 |
var self = this; |
| 606 |
// hides the last shown drop container |
| 607 |
var hide = function(instance) { |
| 608 |
if ((instance != null) && instance.dropWrapper.isOpen ){ |
| 609 |
instance.dropWrapper.isOpen = false; |
| 610 |
$.ui.dropdownchecklist.gLastOpened = null; |
| 611 |
|
| 612 |
var config = instance.options; |
| 613 |
instance.dropWrapper.css({ |
| 614 |
top: "-33000px", |
| 615 |
left: "-33000px" |
| 616 |
}); |
| 617 |
var aControl = instance.controlSelector; |
| 618 |
aControl.removeClass("ui-state-active"); |
| 619 |
aControl.removeClass("ui-state-hover"); |
| 620 |
|
| 621 |
var anIcon = instance.controlWrapper.find(".ui-icon"); |
| 622 |
if ( anIcon.length > 0 ) { |
| 623 |
anIcon.removeClass( (config.icon.toClose != null) ? config.icon.toClose : "ui-icon-triangle-1-s"); |
| 624 |
anIcon.addClass( (config.icon.toOpen != null) ? config.icon.toOpen : "ui-icon-triangle-1-e"); |
| 625 |
} |
| 626 |
$(document).unbind("click", hide); |
| 627 |
|
| 628 |
// keep the items out of the tab order by disabling them |
| 629 |
instance.dropWrapper.find("input.active").prop("disabled",true); |
| 630 |
|
| 631 |
// the following blur just does not fire??? because it is hidden??? because it does not have focus??? |
| 632 |
//instance.sourceSelect.trigger("blur"); |
| 633 |
//instance.sourceSelect.triggerHandler("blur"); |
| 634 |
if($.isFunction(config.onComplete)) { try { |
| 635 |
config.onComplete.call(instance,instance.sourceSelect.get(0)); |
| 636 |
} catch(ex) { |
| 637 |
alert( 'callback failed: ' + ex ); |
| 638 |
}} |
| 639 |
} |
| 640 |
}; |
| 641 |
// shows the given drop container instance |
| 642 |
var show = function(instance) { |
| 643 |
if ( !instance.dropWrapper.isOpen ) { |
| 644 |
instance.dropWrapper.isOpen = true; |
| 645 |
$.ui.dropdownchecklist.gLastOpened = instance; |
| 646 |
|
| 647 |
var config = instance.options; |
| 648 |
/**** Issue127 (and the like) to correct positioning when parent element is relative |
| 649 |
**** This positioning only worked with simple, non-relative parent position |
| 650 |
instance.dropWrapper.css({ |
| 651 |
top: instance.controlWrapper.offset().top + instance.controlWrapper.outerHeight() + "px", |
| 652 |
left: instance.controlWrapper.offset().left + "px" |
| 653 |
}); |
| 654 |
****/ |
| 655 |
if ((config.positionHow == null) || (config.positionHow == 'absolute')) { |
| 656 |
/** Floats above subsequent content, but does NOT scroll */ |
| 657 |
instance.dropWrapper.css({ |
| 658 |
position: 'absolute' |
| 659 |
, top: instance.controlWrapper.position().top + instance.controlWrapper.outerHeight() + "px" |
| 660 |
, left: instance.controlWrapper.position().left + "px" |
| 661 |
}); |
| 662 |
} else if (config.positionHow == 'relative') { |
| 663 |
/** Scrolls with the parent but does NOT float above subsequent content */ |
| 664 |
instance.dropWrapper.css({ |
| 665 |
position: 'relative' |
| 666 |
, top: "0px" |
| 667 |
, left: "0px" |
| 668 |
}); |
| 669 |
} |
| 670 |
var zIndex = 0; |
| 671 |
if (config.zIndex == null) { |
| 672 |
var ancestorsZIndexes = instance.controlWrapper.parents().map( |
| 673 |
function() { |
| 674 |
var zIndex = $(this).css("z-index"); |
| 675 |
return isNaN(zIndex) ? 0 : zIndex; } |
| 676 |
).get(); |
| 677 |
var parentZIndex = Math.max.apply(Math, ancestorsZIndexes); |
| 678 |
if ( parentZIndex >= 0) zIndex = parentZIndex+1; |
| 679 |
} else { |
| 680 |
/* Explicit set from the optins */ |
| 681 |
zIndex = parseInt(config.zIndex); |
| 682 |
} |
| 683 |
if (zIndex > 0) { |
| 684 |
instance.dropWrapper.css( { 'z-index': zIndex } ); |
| 685 |
} |
| 686 |
|
| 687 |
var aControl = instance.controlSelector; |
| 688 |
aControl.addClass("ui-state-active"); |
| 689 |
aControl.removeClass("ui-state-hover"); |
| 690 |
|
| 691 |
var anIcon = instance.controlWrapper.find(".ui-icon"); |
| 692 |
if ( anIcon.length > 0 ) { |
| 693 |
anIcon.removeClass( (config.icon.toOpen != null) ? config.icon.toOpen : "ui-icon-triangle-1-e"); |
| 694 |
anIcon.addClass( (config.icon.toClose != null) ? config.icon.toClose : "ui-icon-triangle-1-s"); |
| 695 |
} |
| 696 |
$(document).bind("click", function(e) {hide(instance);} ); |
| 697 |
|
| 698 |
// insert the items back into the tab order by enabling all active ones |
| 699 |
var activeItems = instance.dropWrapper.find("input.active"); |
| 700 |
activeItems.prop("disabled",false); |
| 701 |
|
| 702 |
// we want the focus on the first active input item |
| 703 |
var firstActiveItem = activeItems.get(0); |
| 704 |
if ( firstActiveItem != null ) { |
| 705 |
firstActiveItem.focus(); |
| 706 |
} |
| 707 |
} |
| 708 |
}; |
| 709 |
if ( makeOpen ) { |
| 710 |
hide($.ui.dropdownchecklist.gLastOpened); |
| 711 |
show(self); |
| 712 |
} else { |
| 713 |
hide(self); |
| 714 |
} |
| 715 |
}, |
| 716 |
// Set the size of the control and of the drop container |
| 717 |
_setSize: function(dropCalculatedSize) { |
| 718 |
var options = this.options, dropWrapper = this.dropWrapper, controlWrapper = this.controlWrapper; |
| 719 |
|
| 720 |
// use the width from config options if set, otherwise set the same width as the drop container |
| 721 |
var controlWidth = dropCalculatedSize.width; |
| 722 |
if (options.width != null) { |
| 723 |
controlWidth = parseInt(options.width); |
| 724 |
} else if (options.minWidth != null) { |
| 725 |
var minWidth = parseInt(options.minWidth); |
| 726 |
// if the width is too small (usually when there are no items) set a minimum width |
| 727 |
if (controlWidth < minWidth) { |
| 728 |
controlWidth = minWidth; |
| 729 |
} |
| 730 |
} |
| 731 |
var control = this.controlSelector; |
| 732 |
control.css({ width: controlWidth + "px" }); |
| 733 |
|
| 734 |
// if we size the text, then Firefox places icons to the right properly |
| 735 |
// and we do not wrap on long lines |
| 736 |
var controlText = control.find(".ui-dropdownchecklist-text"); |
| 737 |
var controlIcon = control.find(".ui-icon"); |
| 738 |
if ( controlIcon != null ) { |
| 739 |
// Must be an inner/outer/border problem, but IE6 needs an extra bit of space, |
| 740 |
// otherwise you can get text pushed down into a second line when icons are active |
| 741 |
controlWidth -= (controlIcon.outerWidth() + 4); |
| 742 |
controlText.css( { width: controlWidth + "px" } ); |
| 743 |
} |
| 744 |
// Account for padding, borders, etc |
| 745 |
controlWidth = controlWrapper.outerWidth(); |
| 746 |
|
| 747 |
// the drop container height can be set from options |
| 748 |
var maxDropHeight = (options.maxDropHeight != null) |
| 749 |
? parseInt(options.maxDropHeight) |
| 750 |
: -1; |
| 751 |
var dropHeight = ((maxDropHeight > 0) && (dropCalculatedSize.height > maxDropHeight)) |
| 752 |
? maxDropHeight |
| 753 |
: dropCalculatedSize.height; |
| 754 |
// ensure the drop container is not less than the control width (would be ugly) |
| 755 |
var dropWidth = dropCalculatedSize.width < controlWidth ? controlWidth : dropCalculatedSize.width; |
| 756 |
|
| 757 |
$(dropWrapper).css({ |
| 758 |
height: dropHeight + "px", |
| 759 |
width: dropWidth + "px" |
| 760 |
}); |
| 761 |
dropWrapper.find(".ui-dropdownchecklist-dropcontainer").css({ |
| 762 |
height: dropHeight + "px" |
| 763 |
}); |
| 764 |
}, |
| 765 |
// Initializes the plugin |
| 766 |
_init: function() { |
| 767 |
var self = this, options = this.options; |
| 768 |
if ( $.ui.dropdownchecklist.gIDCounter == null) { |
| 769 |
$.ui.dropdownchecklist.gIDCounter = 1; |
| 770 |
} |
| 771 |
// item blurring relies on a cancelable timer |
| 772 |
self.blurringItem = null; |
| 773 |
|
| 774 |
// sourceSelect is the select on which the plugin is applied |
| 775 |
var sourceSelect = self.element; |
| 776 |
self.initialDisplay = sourceSelect.css("display"); |
| 777 |
sourceSelect.css("display", "none"); |
| 778 |
self.initialMultiple = sourceSelect.prop("multiple"); |
| 779 |
self.isMultiple = self.initialMultiple; |
| 780 |
if (options.forceMultiple != null) { self.isMultiple = options.forceMultiple; } |
| 781 |
sourceSelect.prop("multiple", true); |
| 782 |
self.sourceSelect = sourceSelect; |
| 783 |
|
| 784 |
// append the control that resembles a single selection select |
| 785 |
var controlWrapper = self._appendControl(); |
| 786 |
self.controlWrapper = controlWrapper; |
| 787 |
self.controlSelector = controlWrapper.find(".ui-dropdownchecklist-selector"); |
| 788 |
|
| 789 |
// create the drop container where the items are shown |
| 790 |
var dropWrapper = self._appendDropContainer(controlWrapper); |
| 791 |
self.dropWrapper = dropWrapper; |
| 792 |
|
| 793 |
// append the items from the source select element |
| 794 |
var dropCalculatedSize = self._appendItems(); |
| 795 |
|
| 796 |
// updates the text shown in the control |
| 797 |
self._updateControlText(controlWrapper, dropWrapper, sourceSelect); |
| 798 |
|
| 799 |
// set the sizes of control and drop container |
| 800 |
self._setSize(dropCalculatedSize); |
| 801 |
|
| 802 |
// look for possible auto-check needed on first item |
| 803 |
if ( options.firstItemChecksAll ) { |
| 804 |
self._syncSelected(null); |
| 805 |
} |
| 806 |
// BGIFrame for IE6 |
| 807 |
if (options.bgiframe && typeof self.dropWrapper.bgiframe == "function") { |
| 808 |
self.dropWrapper.bgiframe(); |
| 809 |
} |
| 810 |
// listen for change events on the source select element |
| 811 |
// ensure we avoid processing internally triggered changes |
| 812 |
self.sourceSelect.change(function(event, eventName) { |
| 813 |
if (eventName != 'ddcl_internal') { |
| 814 |
self._sourceSelectChangeHandler(event); |
| 815 |
} |
| 816 |
}); |
| 817 |
}, |
| 818 |
// Refresh the disable and check state from the underlying control |
| 819 |
_refreshOption: function(item,disabled,selected) { |
| 820 |
var aParent = item.parent(); |
| 821 |
// account for enabled/disabled |
| 822 |
if ( disabled ) { |
| 823 |
item.prop("disabled",true); |
| 824 |
item.removeClass("active"); |
| 825 |
item.addClass("inactive"); |
| 826 |
aParent.addClass("ui-state-disabled"); |
| 827 |
} else { |
| 828 |
item.prop("disabled",false); |
| 829 |
item.removeClass("inactive"); |
| 830 |
item.addClass("active"); |
| 831 |
aParent.removeClass("ui-state-disabled"); |
| 832 |
} |
| 833 |
// adjust the checkbox state |
| 834 |
item.prop("checked",selected); |
| 835 |
}, |
| 836 |
_refreshGroup: function(group,disabled) { |
| 837 |
if ( disabled ) { |
| 838 |
group.addClass("ui-state-disabled"); |
| 839 |
} else { |
| 840 |
group.removeClass("ui-state-disabled"); |
| 841 |
} |
| 842 |
}, |
| 843 |
// External command to explicitly close the dropdown |
| 844 |
close: function() { |
| 845 |
this._toggleDropContainer(false); |
| 846 |
}, |
| 847 |
// External command to refresh the ddcl from the underlying selector |
| 848 |
refresh: function() { |
| 849 |
var self = this, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper; |
| 850 |
|
| 851 |
var allCheckBoxes = dropWrapper.find("input"); |
| 852 |
var allGroups = dropWrapper.find(".ui-dropdownchecklist-group"); |
| 853 |
|
| 854 |
var groupCount = 0; |
| 855 |
var optionCount = 0; |
| 856 |
sourceSelect.children().each(function(index) { |
| 857 |
var opt = $(this); |
| 858 |
var disabled = opt.prop("disabled"); |
| 859 |
if (opt.is("option")) { |
| 860 |
var selected = opt.prop("selected"); |
| 861 |
var anItem = $(allCheckBoxes[optionCount]); |
| 862 |
self._refreshOption(anItem, disabled, selected); |
| 863 |
optionCount += 1; |
| 864 |
} else if (opt.is("optgroup")) { |
| 865 |
var text = opt.attr("label"); |
| 866 |
if (text != "") { |
| 867 |
var aGroup = $(allGroups[groupCount]); |
| 868 |
self._refreshGroup(aGroup, disabled); |
| 869 |
groupCount += 1; |
| 870 |
} |
| 871 |
opt.children("option").each(function() { |
| 872 |
var subopt = $(this); |
| 873 |
var subdisabled = (disabled || subopt.prop("disabled")); |
| 874 |
var selected = subopt.prop("selected"); |
| 875 |
var subItem = $(allCheckBoxes[optionCount]); |
| 876 |
self._refreshOption(subItem, subdisabled, selected ); |
| 877 |
optionCount += 1; |
| 878 |
}); |
| 879 |
} |
| 880 |
}); |
| 881 |
// sync will handle firstItemChecksAll and updateControlText |
| 882 |
self._syncSelected(null); |
| 883 |
}, |
| 884 |
// External command to enable the ddcl control |
| 885 |
enable: function() { |
| 886 |
this.controlSelector.removeClass("ui-state-disabled"); |
| 887 |
this.disabled = false; |
| 888 |
}, |
| 889 |
// External command to disable the ddcl control |
| 890 |
disable: function() { |
| 891 |
this.controlSelector.addClass("ui-state-disabled"); |
| 892 |
this.disabled = true; |
| 893 |
}, |
| 894 |
// External command to destroy all traces of the ddcl control |
| 895 |
destroy: function() { |
| 896 |
$.Widget.prototype.destroy.apply(this, arguments); |
| 897 |
this.sourceSelect.css("display", this.initialDisplay); |
| 898 |
this.sourceSelect.prop("multiple", this.initialMultiple); |
| 899 |
this.controlWrapper.unbind().remove(); |
| 900 |
this.dropWrapper.remove(); |
| 901 |
} |
| 902 |
}); |
| 903 |
|
| 904 |
$.extend($.ui.dropdownchecklist, { |
| 905 |
defaults: { |
| 906 |
width: null |
| 907 |
, maxDropHeight: null |
| 908 |
, firstItemChecksAll: false |
| 909 |
, closeRadioOnClick: false |
| 910 |
, minWidth: 50 |
| 911 |
, positionHow: 'absolute' |
| 912 |
, bgiframe: false |
| 913 |
, explicitClose: null |
| 914 |
} |
| 915 |
}); |
| 916 |
|
| 917 |
})(jQuery); |