917 lines
42 KiB
JavaScript
917 lines
42 KiB
JavaScript
;(function($) {
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/*
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* ui.dropdownchecklist
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*
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* Copyright (c) 2008-2010 Adrian Tosca, Copyright (c) 2010-2011 Ittrium LLC
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* Dual licensed under the MIT (MIT-LICENSE.txt) OR GPL (GPL-LICENSE.txt) licenses.
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*
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*/
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// The dropdown check list jQuery plugin transforms a regular select html element into a dropdown check list.
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$.widget("ui.dropdownchecklist", {
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// Some globlals
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// $.ui.dropdownchecklist.gLastOpened - keeps track of last opened dropdowncheck list so we can close it
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// $.ui.dropdownchecklist.gIDCounter - simple counter to provide a unique ID as needed
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version: function() {
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alert('DropDownCheckList v1.4');
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},
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// Creates the drop container that keeps the items and appends it to the document
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_appendDropContainer: function( controlItem ) {
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var wrapper = $("<div/>");
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// the container is wrapped in a div
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wrapper.addClass("ui-dropdownchecklist ui-dropdownchecklist-dropcontainer-wrapper");
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wrapper.addClass("ui-widget");
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// assign an id
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wrapper.attr("id",controlItem.attr("id") + '-ddw');
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// initially positioned way off screen to prevent it from displaying
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// NOTE absolute position to enable width/height calculation
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wrapper.css({ position: 'absolute', left: "-33000px", top: "-33000px" });
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var container = $("<div/>"); // the actual container
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container.addClass("ui-dropdownchecklist-dropcontainer ui-widget-content");
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container.css("overflow-y", "auto");
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wrapper.append(container);
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// insert the dropdown after the master control to try to keep the tab order intact
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// if you just add it to the end, tabbing out of the drop down takes focus off the page
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// @todo 22Sept2010 - check if size calculation is thrown off if the parent of the
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// selector is hidden. We may need to add it to the end of the document here,
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// calculate the size, and then move it back into proper position???
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//$(document.body).append(wrapper);
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wrapper.insertAfter(controlItem);
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// flag that tells if the drop container is shown or not
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wrapper.isOpen = false;
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return wrapper;
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},
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// Look for browser standard 'open' on a closed selector
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_isDropDownKeyShortcut: function(e,keycode) {
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return e.altKey && ($.ui.keyCode.DOWN == keycode);// Alt + Down Arrow
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},
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// Look for key that will tell us to close the open dropdown
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_isDropDownCloseKey: function(e,keycode) {
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return ($.ui.keyCode.ESCAPE == keycode) || ($.ui.keyCode.ENTER == keycode);
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},
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// Handler to change the active focus based on a keystroke, moving some count of
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// items from the element that has the current focus
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_keyFocusChange: function(target,delta,limitToItems) {
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// Find item with current focus
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var focusables = $(":focusable");
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var index = focusables.index(target);
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if ( index >= 0 ) {
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index += delta;
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if ( limitToItems ) {
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// Bound change to list of input elements
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var allCheckboxes = this.dropWrapper.find("input:not([disabled])");
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var firstIndex = focusables.index(allCheckboxes.get(0));
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var lastIndex = focusables.index(allCheckboxes.get(allCheckboxes.length-1));
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if ( index < firstIndex ) {
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index = lastIndex;
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} else if ( index > lastIndex ) {
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index = firstIndex;
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}
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}
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focusables.get(index).focus();
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}
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},
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// Look for navigation, open, close (wired to keyup)
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_handleKeyboard: function(e) {
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var self = this;
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var keyCode = (e.keyCode || e.which);
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if (!self.dropWrapper.isOpen && self._isDropDownKeyShortcut(e, keyCode)) {
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// Key command to open the dropdown
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e.stopImmediatePropagation();
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self._toggleDropContainer(true);
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} else if (self.dropWrapper.isOpen && self._isDropDownCloseKey(e, keyCode)) {
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// Key command to close the dropdown (but we retain focus in the control)
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e.stopImmediatePropagation();
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self._toggleDropContainer(false);
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self.controlSelector.focus();
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} else if (self.dropWrapper.isOpen
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&& (e.target.type == 'checkbox')
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&& ((keyCode == $.ui.keyCode.DOWN) || (keyCode == $.ui.keyCode.UP)) ) {
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// Up/Down to cycle throught the open items
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e.stopImmediatePropagation();
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self._keyFocusChange(e.target, (keyCode == $.ui.keyCode.DOWN) ? 1 : -1, true);
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} else if (self.dropWrapper.isOpen && (keyCode == $.ui.keyCode.TAB) ) {
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// I wanted to adjust normal 'tab' processing here, but research indicates
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// that TAB key processing is NOT a cancelable event. You have to use a timer
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// hack to pull the focus back to where you want it after browser tab
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// processing completes. Not going to work for us.
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//e.stopImmediatePropagation();
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//self._keyFocusChange(e.target, (e.shiftKey) ? -1 : 1, true);
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}
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},
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// Look for change of focus
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_handleFocus: function(e,focusIn,forDropdown) {
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var self = this;
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if (forDropdown && !self.dropWrapper.isOpen) {
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// if the focus changes when the control is NOT open, mark it to show where the focus is/is not
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e.stopImmediatePropagation();
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if (focusIn) {
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self.controlSelector.addClass("ui-state-hover");
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if ($.ui.dropdownchecklist.gLastOpened != null) {
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$.ui.dropdownchecklist.gLastOpened._toggleDropContainer( false );
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}
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} else {
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self.controlSelector.removeClass("ui-state-hover");
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}
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} else if (!forDropdown && !focusIn) {
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// The dropdown is open, and an item (NOT the dropdown) has just lost the focus.
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// we really need a reliable method to see who has the focus as we process the blur,
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// but that mechanism does not seem to exist. Instead we rely on a delay before
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// posting the blur, with a focus event cancelling it before the delay expires.
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if ( e != null ) { e.stopImmediatePropagation(); }
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self.controlSelector.removeClass("ui-state-hover");
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self._toggleDropContainer( false );
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}
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},
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// Clear the pending change of focus, which keeps us 'in' the control
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_cancelBlur: function(e) {
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var self = this;
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if (self.blurringItem != null) {
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clearTimeout(self.blurringItem);
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self.blurringItem = null;
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}
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},
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// Creates the control that will replace the source select and appends it to the document
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// The control resembles a regular select with single selection
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_appendControl: function() {
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var self = this, sourceSelect = this.sourceSelect, options = this.options;
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// the control is wrapped in a basic container
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// inline-block at this level seems to give us better size control
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var wrapper = $("<span/>");
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wrapper.addClass("ui-dropdownchecklist ui-dropdownchecklist-selector-wrapper ui-widget");
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wrapper.css( { display: "inline-block", cursor: "default", overflow: "hidden" } );
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// assign an ID
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var baseID = sourceSelect.attr("id");
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if ((baseID == null) || (baseID == "")) {
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baseID = "ddcl-" + $.ui.dropdownchecklist.gIDCounter++;
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} else {
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baseID = "ddcl-" + baseID;
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}
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wrapper.attr("id",baseID);
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// the actual control which you can style
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// inline-block needed to enable 'width' but has interesting problems cross browser
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var control = $("<span/>");
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control.addClass("ui-dropdownchecklist-selector ui-state-default");
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control.css( { display: "inline-block", overflow: "hidden", 'white-space': 'nowrap'} );
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// Setting a tab index means we are interested in the tab sequence
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var tabIndex = sourceSelect.attr("tabIndex");
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if ( tabIndex == null ) {
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tabIndex = 0;
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} else {
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tabIndex = parseInt(tabIndex);
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if ( tabIndex < 0 ) {
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tabIndex = 0;
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}
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}
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control.attr("tabIndex", tabIndex);
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control.keyup(function(e) {self._handleKeyboard(e);});
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control.focus(function(e) {self._handleFocus(e,true,true);});
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control.blur(function(e) {self._handleFocus(e,false,true);});
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wrapper.append(control);
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// the optional icon (which is inherently a block) which we can float
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if (options.icon != null) {
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var iconPlacement = (options.icon.placement == null) ? "left" : options.icon.placement;
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var anIcon = $("<div/>");
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anIcon.addClass("ui-icon");
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anIcon.addClass( (options.icon.toOpen != null) ? options.icon.toOpen : "ui-icon-triangle-1-e");
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anIcon.css({ 'float': iconPlacement });
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control.append(anIcon);
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}
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// the text container keeps the control text that is built from the selected (checked) items
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// inline-block needed to prevent long text from wrapping to next line when icon is active
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var textContainer = $("<span/>");
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textContainer.addClass("ui-dropdownchecklist-text");
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textContainer.css( { display: "inline-block", 'white-space': "nowrap", overflow: "hidden" } );
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control.append(textContainer);
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// add the hover styles to the control
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wrapper.hover(
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function() {
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if (!self.disabled) {
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control.addClass("ui-state-hover");
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}
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}
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, function() {
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if (!self.disabled) {
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control.removeClass("ui-state-hover");
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}
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}
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);
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// clicking on the control toggles the drop container
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wrapper.click(function(event) {
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if (!self.disabled) {
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event.stopImmediatePropagation();
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self._toggleDropContainer( !self.dropWrapper.isOpen );
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}
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});
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wrapper.insertAfter(sourceSelect);
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// Watch for a window resize and adjust the control if open
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$(window).resize(function() {
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if (!self.disabled && self.dropWrapper.isOpen) {
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// Reopen yourself to get the position right
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self._toggleDropContainer(true);
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}
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});
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return wrapper;
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},
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// Creates a drop item that coresponds to an option element in the source select
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_createDropItem: function(index, tabIndex, value, text, optCss, checked, disabled, indent) {
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var self = this, options = this.options, sourceSelect = this.sourceSelect, controlWrapper = this.controlWrapper;
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// the item contains a div that contains a checkbox input and a lable for the text
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// the div
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var item = $("<div/>");
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item.addClass("ui-dropdownchecklist-item");
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item.css({'white-space': "nowrap"});
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var checkedString = checked ? ' checked="checked"' : '';
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var classString = disabled ? ' class="inactive"' : ' class="active"';
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// generated id must be a bit unique to keep from colliding
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var idBase = controlWrapper.attr("id");
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var id = idBase + '-i' + index;
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var checkBox;
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// all items start out disabled to keep them out of the tab order
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if (self.isMultiple) { // the checkbox
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checkBox = $('<input disabled type="checkbox" id="' + id + '"' + checkedString + classString + ' tabindex="' + tabIndex + '" />');
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} else { // the radiobutton
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checkBox = $('<input disabled type="radio" id="' + id + '" name="' + idBase + '"' + checkedString + classString + ' tabindex="' + tabIndex + '" />');
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}
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checkBox = checkBox.attr("index", index).val(value);
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item.append(checkBox);
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// the text
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var label = $("<label for=" + id + "/>");
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label.addClass("ui-dropdownchecklist-text");
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if ( optCss != null ) label.attr('style',optCss);
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label.css({ cursor: "default" });
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label.html(text);
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if (indent) {
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item.addClass("ui-dropdownchecklist-indent");
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}
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item.addClass("ui-state-default");
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if (disabled) {
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item.addClass("ui-state-disabled");
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}
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label.click(function(e) {e.stopImmediatePropagation();});
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item.append(label);
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// active items display themselves with hover
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item.hover(
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function(e) {
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var anItem = $(this);
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if (!anItem.hasClass("ui-state-disabled")) { anItem.addClass("ui-state-hover"); }
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}
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, function(e) {
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var anItem = $(this);
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anItem.removeClass("ui-state-hover");
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}
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);
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// clicking on the checkbox synchronizes the source select
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checkBox.click(function(e) {
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var aCheckBox = $(this);
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e.stopImmediatePropagation();
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if (aCheckBox.hasClass("active") ) {
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// Active checkboxes take active action
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var callback = self.options.onItemClick;
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if ($.isFunction(callback)) try {
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callback.call(self,aCheckBox,sourceSelect.get(0));
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} catch (ex) {
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// reject the change on any error
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aCheckBox.prop("checked",!aCheckBox.prop("checked"));
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self._syncSelected(aCheckBox);
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return;
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}
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self._syncSelected(aCheckBox);
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self.sourceSelect.trigger("change", 'ddcl_internal');
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if (!self.isMultiple && options.closeRadioOnClick) {
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self._toggleDropContainer(false);
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}
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}
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});
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// we are interested in the focus leaving the check box
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// but we need to detect the focus leaving one check box but
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// entering another. There is no reliable way to detect who
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// received the focus on a blur, so post the blur in the future,
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// knowing we will cancel it if we capture the focus in a timely manner
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// 23Sept2010 - unfortunately, IE 7+ and Chrome like to post a blur
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// event to the current item with focus when the user
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// clicks in the scroll bar. So if you have a scrollable
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// dropdown with focus on an item, clicking in the scroll
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// will close the drop down.
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// I have no solution for blur processing at this time.
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/*********
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var timerFunction = function(){
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// I had a hell of a time getting setTimeout to fire this, do not try to
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// define it within the blur function
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try { self._handleFocus(null,false,false); } catch(ex){ alert('timer failed: '+ex);}
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};
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checkBox.blur(function(e) {
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self.blurringItem = setTimeout( timerFunction, 200 );
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});
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checkBox.focus(function(e) {self._cancelBlur();});
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**********/
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// check/uncheck the item on clicks on the entire item div
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item.click(function(e) {
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var anItem = $(this);
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e.stopImmediatePropagation();
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if (!anItem.hasClass("ui-state-disabled") ) {
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// check/uncheck the underlying control
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var aCheckBox = anItem.find("input");
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var checked = aCheckBox.prop("checked");
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aCheckBox.prop("checked", !checked);
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var callback = self.options.onItemClick;
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if ($.isFunction(callback)) try {
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callback.call(self,aCheckBox,sourceSelect.get(0));
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} catch (ex) {
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// reject the change on any error
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aCheckBox.prop("checked",checked);
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self._syncSelected(aCheckBox);
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return;
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}
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self._syncSelected(aCheckBox);
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self.sourceSelect.trigger("change", 'ddcl_internal');
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if (!checked && !self.isMultiple && options.closeRadioOnClick) {
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self._toggleDropContainer(false);
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}
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} else {
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// retain the focus even if disabled
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anItem.focus();
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self._cancelBlur();
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}
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});
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// do not let the focus wander around
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item.focus(function(e) {
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var anItem = $(this);
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e.stopImmediatePropagation();
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});
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item.keyup(function(e) {self._handleKeyboard(e);});
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return item;
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},
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_createGroupItem: function(text,disabled) {
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var self = this;
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var group = $("<div />");
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group.addClass("ui-dropdownchecklist-group ui-widget-header");
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if (disabled) {
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group.addClass("ui-state-disabled");
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}
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group.css({'white-space': "nowrap"});
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var label = $("<span/>");
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label.addClass("ui-dropdownchecklist-text");
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label.css( { cursor: "default" });
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label.text(text);
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group.append(label);
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// anything interesting when you click the group???
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group.click(function(e) {
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var aGroup= $(this);
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e.stopImmediatePropagation();
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// retain the focus even if no action is taken
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aGroup.focus();
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self._cancelBlur();
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});
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// do not let the focus wander around
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group.focus(function(e) {
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var aGroup = $(this);
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e.stopImmediatePropagation();
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});
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return group;
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},
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_createCloseItem: function(text) {
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var self = this;
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var closeItem = $("<div />");
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closeItem.addClass("ui-state-default ui-dropdownchecklist-close ui-dropdownchecklist-item");
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closeItem.css({'white-space': 'nowrap', 'text-align': 'right'});
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var label = $("<span/>");
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label.addClass("ui-dropdownchecklist-text");
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label.css( { cursor: "default" });
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label.html(text);
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closeItem.append(label);
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// close the control on click
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closeItem.click(function(e) {
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var aGroup= $(this);
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e.stopImmediatePropagation();
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// retain the focus even if no action is taken
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aGroup.focus();
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self._toggleDropContainer( false );
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});
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closeItem.hover(
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function(e) { $(this).addClass("ui-state-hover"); }
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, function(e) { $(this).removeClass("ui-state-hover"); }
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);
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// do not let the focus wander around
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closeItem.focus(function(e) {
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var aGroup = $(this);
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e.stopImmediatePropagation();
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});
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return closeItem;
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},
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// Creates the drop items and appends them to the drop container
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// Also calculates the size needed by the drop container and returns it
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_appendItems: function() {
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var self = this, config = this.options, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper;
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var dropContainerDiv = dropWrapper.find(".ui-dropdownchecklist-dropcontainer");
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sourceSelect.children().each(function(index) { // when the select has groups
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var opt = $(this);
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if (opt.is("option")) {
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self._appendOption(opt, dropContainerDiv, index, false, false);
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} else if (opt.is("optgroup")) {
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var disabled = opt.prop("disabled");
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var text = opt.attr("label");
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if (text != "") {
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var group = self._createGroupItem(text,disabled);
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dropContainerDiv.append(group);
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}
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self._appendOptions(opt, dropContainerDiv, index, true, disabled);
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}
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});
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if ( config.explicitClose != null ) {
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var closeItem = self._createCloseItem(config.explicitClose);
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dropContainerDiv.append(closeItem);
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}
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var divWidth = dropContainerDiv.outerWidth();
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var divHeight = dropContainerDiv.outerHeight();
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return { width: divWidth, height: divHeight };
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},
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_appendOptions: function(parent, container, parentIndex, indent, forceDisabled) {
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var self = this;
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parent.children("option").each(function(index) {
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var option = $(this);
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var childIndex = (parentIndex + "." + index);
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self._appendOption(option, container, childIndex, indent, forceDisabled);
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});
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},
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_appendOption: function(option, container, index, indent, forceDisabled) {
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var self = this;
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// Note that the browsers destroy any html structure within the OPTION
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var text = option.html();
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if ( (text != null) && (text != '') ) {
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var value = option.val();
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var optCss = option.attr('style');
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var selected = option.prop("selected");
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var disabled = (forceDisabled || option.prop("disabled"));
|
|
// Use the same tab index as the selector replacement
|
|
var tabIndex = self.controlSelector.attr("tabindex");
|
|
var item = self._createDropItem(index, tabIndex, value, text, optCss, selected, disabled, indent);
|
|
container.append(item);
|
|
}
|
|
},
|
|
// Synchronizes the items checked and the source select
|
|
// When firstItemChecksAll option is active also synchronizes the checked items
|
|
// senderCheckbox parameters is the checkbox input that generated the synchronization
|
|
_syncSelected: function(senderCheckbox) {
|
|
var self = this, options = this.options, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper;
|
|
var selectOptions = sourceSelect.get(0).options;
|
|
var allCheckboxes = dropWrapper.find("input.active");
|
|
if (options.firstItemChecksAll == 'exclusive') {
|
|
if ((senderCheckbox == null) && $(selectOptions[0]).prop("selected") ) {
|
|
// Initialization call with first item active
|
|
allCheckboxes.prop("checked", false);
|
|
$(allCheckboxes[0]).prop("checked", true);
|
|
} else if ((senderCheckbox != null) && (senderCheckbox.attr("index") == 0)) {
|
|
// Action on the first, so all other checkboxes NOT active
|
|
var firstIsActive = senderCheckbox.prop("checked");
|
|
allCheckboxes.prop("checked", false);
|
|
$(allCheckboxes[0]).prop("checked", firstIsActive);
|
|
} else {
|
|
// check the first checkbox if all the other checkboxes are checked
|
|
var allChecked = true;
|
|
var firstCheckbox = null;
|
|
allCheckboxes.each(function(index) {
|
|
if (index > 0) {
|
|
var checked = $(this).prop("checked");
|
|
if (!checked) { allChecked = false; }
|
|
} else {
|
|
firstCheckbox = $(this);
|
|
}
|
|
});
|
|
if ( firstCheckbox != null ) {
|
|
if ( allChecked ) {
|
|
// when all are checked, only the first left checked
|
|
allCheckboxes.prop("checked", false);
|
|
}
|
|
firstCheckbox.prop("checked", allChecked );
|
|
}
|
|
}
|
|
} else if (options.firstItemChecksAll) {
|
|
if ((senderCheckbox == null) && $(selectOptions[0]).prop("selected") ) {
|
|
// Initialization call with first item active so force all to be active
|
|
allCheckboxes.prop("checked", true);
|
|
} else if ((senderCheckbox != null) && (senderCheckbox.attr("index") == 0)) {
|
|
// Check all checkboxes if the first one is checked
|
|
allCheckboxes.prop("checked", senderCheckbox.prop("checked"));
|
|
} else {
|
|
// check the first checkbox if all the other checkboxes are checked
|
|
var allChecked = true;
|
|
var firstCheckbox = null;
|
|
allCheckboxes.each(function(index) {
|
|
if (index > 0) {
|
|
var checked = $(this).prop("checked");
|
|
if (!checked) { allChecked = false; }
|
|
} else {
|
|
firstCheckbox = $(this);
|
|
}
|
|
});
|
|
if ( firstCheckbox != null ) {
|
|
firstCheckbox.prop("checked", allChecked );
|
|
}
|
|
}
|
|
}
|
|
// do the actual synch with the source select
|
|
var empties = 0;
|
|
allCheckboxes = dropWrapper.find("input");
|
|
allCheckboxes.each(function(index) {
|
|
var anOption = $(selectOptions[index + empties]);
|
|
var optionText = anOption.html();
|
|
if ( (optionText == null) || (optionText == '') ) {
|
|
empties += 1;
|
|
anOption = $(selectOptions[index + empties]);
|
|
}
|
|
anOption.prop("selected", $(this).prop("checked"));
|
|
});
|
|
// update the text shown in the control
|
|
self._updateControlText();
|
|
|
|
// Ensure the focus stays pointing where the user is working
|
|
if ( senderCheckbox != null) { senderCheckbox.focus(); }
|
|
},
|
|
_sourceSelectChangeHandler: function(event) {
|
|
var self = this, dropWrapper = this.dropWrapper;
|
|
dropWrapper.find("input").val(self.sourceSelect.val());
|
|
|
|
// update the text shown in the control
|
|
self._updateControlText();
|
|
},
|
|
// Updates the text shown in the control depending on the checked (selected) items
|
|
_updateControlText: function() {
|
|
var self = this, sourceSelect = this.sourceSelect, options = this.options, controlWrapper = this.controlWrapper;
|
|
var firstOption = sourceSelect.find("option:first");
|
|
var selectOptions = sourceSelect.find("option");
|
|
var text = self._formatText(selectOptions, options.firstItemChecksAll, firstOption);
|
|
var controlLabel = controlWrapper.find(".ui-dropdownchecklist-text");
|
|
controlLabel.html(text);
|
|
// the attribute needs naked text, not html
|
|
controlLabel.attr("title", controlLabel.text());
|
|
},
|
|
// Formats the text that is shown in the control
|
|
_formatText: function(selectOptions, firstItemChecksAll, firstOption) {
|
|
var text;
|
|
if ( $.isFunction(this.options.textFormatFunction) ) {
|
|
// let the callback do the formatting, but do not allow it to fail
|
|
try {
|
|
text = this.options.textFormatFunction(selectOptions);
|
|
} catch(ex) {
|
|
alert( 'textFormatFunction failed: ' + ex );
|
|
}
|
|
} else if (firstItemChecksAll && (firstOption != null) && firstOption.prop("selected")) {
|
|
// just set the text from the first item
|
|
text = firstOption.html();
|
|
} else {
|
|
// concatenate the text from the checked items
|
|
text = "";
|
|
selectOptions.each(function() {
|
|
if ($(this).prop("selected")) {
|
|
if ( text != "" ) { text += ", "; }
|
|
/* NOTE use of .html versus .text, which can screw up ampersands for IE */
|
|
var optCss = $(this).attr('style');
|
|
var tempspan = $('<span/>');
|
|
tempspan.html( $(this).html() );
|
|
if ( optCss == null ) {
|
|
text += tempspan.html();
|
|
} else {
|
|
tempspan.attr('style',optCss);
|
|
text += $("<span/>").append(tempspan).html();
|
|
}
|
|
}
|
|
});
|
|
if ( text == "" ) {
|
|
text = (this.options.emptyText != null) ? this.options.emptyText : " ";
|
|
}
|
|
}
|
|
return text;
|
|
},
|
|
// Shows and hides the drop container
|
|
_toggleDropContainer: function( makeOpen ) {
|
|
var self = this;
|
|
// hides the last shown drop container
|
|
var hide = function(instance) {
|
|
if ((instance != null) && instance.dropWrapper.isOpen ){
|
|
instance.dropWrapper.isOpen = false;
|
|
$.ui.dropdownchecklist.gLastOpened = null;
|
|
|
|
var config = instance.options;
|
|
instance.dropWrapper.css({
|
|
top: "-33000px",
|
|
left: "-33000px"
|
|
});
|
|
var aControl = instance.controlSelector;
|
|
aControl.removeClass("ui-state-active");
|
|
aControl.removeClass("ui-state-hover");
|
|
|
|
var anIcon = instance.controlWrapper.find(".ui-icon");
|
|
if ( anIcon.length > 0 ) {
|
|
anIcon.removeClass( (config.icon.toClose != null) ? config.icon.toClose : "ui-icon-triangle-1-s");
|
|
anIcon.addClass( (config.icon.toOpen != null) ? config.icon.toOpen : "ui-icon-triangle-1-e");
|
|
}
|
|
$(document).unbind("click", hide);
|
|
|
|
// keep the items out of the tab order by disabling them
|
|
instance.dropWrapper.find("input.active").prop("disabled",true);
|
|
|
|
// the following blur just does not fire??? because it is hidden??? because it does not have focus???
|
|
//instance.sourceSelect.trigger("blur");
|
|
//instance.sourceSelect.triggerHandler("blur");
|
|
if($.isFunction(config.onComplete)) { try {
|
|
config.onComplete.call(instance,instance.sourceSelect.get(0));
|
|
} catch(ex) {
|
|
alert( 'callback failed: ' + ex );
|
|
}}
|
|
}
|
|
};
|
|
// shows the given drop container instance
|
|
var show = function(instance) {
|
|
if ( !instance.dropWrapper.isOpen ) {
|
|
instance.dropWrapper.isOpen = true;
|
|
$.ui.dropdownchecklist.gLastOpened = instance;
|
|
|
|
var config = instance.options;
|
|
/**** Issue127 (and the like) to correct positioning when parent element is relative
|
|
**** This positioning only worked with simple, non-relative parent position
|
|
instance.dropWrapper.css({
|
|
top: instance.controlWrapper.offset().top + instance.controlWrapper.outerHeight() + "px",
|
|
left: instance.controlWrapper.offset().left + "px"
|
|
});
|
|
****/
|
|
if ((config.positionHow == null) || (config.positionHow == 'absolute')) {
|
|
/** Floats above subsequent content, but does NOT scroll */
|
|
instance.dropWrapper.css({
|
|
position: 'absolute'
|
|
, top: instance.controlWrapper.position().top + instance.controlWrapper.outerHeight() + "px"
|
|
, left: instance.controlWrapper.position().left + "px"
|
|
});
|
|
} else if (config.positionHow == 'relative') {
|
|
/** Scrolls with the parent but does NOT float above subsequent content */
|
|
instance.dropWrapper.css({
|
|
position: 'relative'
|
|
, top: "0px"
|
|
, left: "0px"
|
|
});
|
|
}
|
|
var zIndex = 0;
|
|
if (config.zIndex == null) {
|
|
var ancestorsZIndexes = instance.controlWrapper.parents().map(
|
|
function() {
|
|
var zIndex = $(this).css("z-index");
|
|
return isNaN(zIndex) ? 0 : zIndex; }
|
|
).get();
|
|
var parentZIndex = Math.max.apply(Math, ancestorsZIndexes);
|
|
if ( parentZIndex >= 0) zIndex = parentZIndex+1;
|
|
} else {
|
|
/* Explicit set from the optins */
|
|
zIndex = parseInt(config.zIndex);
|
|
}
|
|
if (zIndex > 0) {
|
|
instance.dropWrapper.css( { 'z-index': zIndex } );
|
|
}
|
|
|
|
var aControl = instance.controlSelector;
|
|
aControl.addClass("ui-state-active");
|
|
aControl.removeClass("ui-state-hover");
|
|
|
|
var anIcon = instance.controlWrapper.find(".ui-icon");
|
|
if ( anIcon.length > 0 ) {
|
|
anIcon.removeClass( (config.icon.toOpen != null) ? config.icon.toOpen : "ui-icon-triangle-1-e");
|
|
anIcon.addClass( (config.icon.toClose != null) ? config.icon.toClose : "ui-icon-triangle-1-s");
|
|
}
|
|
$(document).bind("click", function(e) {hide(instance);} );
|
|
|
|
// insert the items back into the tab order by enabling all active ones
|
|
var activeItems = instance.dropWrapper.find("input.active");
|
|
activeItems.prop("disabled",false);
|
|
|
|
// we want the focus on the first active input item
|
|
var firstActiveItem = activeItems.get(0);
|
|
if ( firstActiveItem != null ) {
|
|
firstActiveItem.focus();
|
|
}
|
|
}
|
|
};
|
|
if ( makeOpen ) {
|
|
hide($.ui.dropdownchecklist.gLastOpened);
|
|
show(self);
|
|
} else {
|
|
hide(self);
|
|
}
|
|
},
|
|
// Set the size of the control and of the drop container
|
|
_setSize: function(dropCalculatedSize) {
|
|
var options = this.options, dropWrapper = this.dropWrapper, controlWrapper = this.controlWrapper;
|
|
|
|
// use the width from config options if set, otherwise set the same width as the drop container
|
|
var controlWidth = dropCalculatedSize.width;
|
|
if (options.width != null) {
|
|
controlWidth = parseInt(options.width);
|
|
} else if (options.minWidth != null) {
|
|
var minWidth = parseInt(options.minWidth);
|
|
// if the width is too small (usually when there are no items) set a minimum width
|
|
if (controlWidth < minWidth) {
|
|
controlWidth = minWidth;
|
|
}
|
|
}
|
|
var control = this.controlSelector;
|
|
control.css({ width: controlWidth + "px" });
|
|
|
|
// if we size the text, then Firefox places icons to the right properly
|
|
// and we do not wrap on long lines
|
|
var controlText = control.find(".ui-dropdownchecklist-text");
|
|
var controlIcon = control.find(".ui-icon");
|
|
if ( controlIcon != null ) {
|
|
// Must be an inner/outer/border problem, but IE6 needs an extra bit of space,
|
|
// otherwise you can get text pushed down into a second line when icons are active
|
|
controlWidth -= (controlIcon.outerWidth() + 4);
|
|
controlText.css( { width: controlWidth + "px" } );
|
|
}
|
|
// Account for padding, borders, etc
|
|
controlWidth = controlWrapper.outerWidth();
|
|
|
|
// the drop container height can be set from options
|
|
var maxDropHeight = (options.maxDropHeight != null)
|
|
? parseInt(options.maxDropHeight)
|
|
: -1;
|
|
var dropHeight = ((maxDropHeight > 0) && (dropCalculatedSize.height > maxDropHeight))
|
|
? maxDropHeight
|
|
: dropCalculatedSize.height;
|
|
// ensure the drop container is not less than the control width (would be ugly)
|
|
var dropWidth = dropCalculatedSize.width < controlWidth ? controlWidth : dropCalculatedSize.width;
|
|
|
|
$(dropWrapper).css({
|
|
height: dropHeight + "px",
|
|
width: dropWidth + "px"
|
|
});
|
|
dropWrapper.find(".ui-dropdownchecklist-dropcontainer").css({
|
|
height: dropHeight + "px"
|
|
});
|
|
},
|
|
// Initializes the plugin
|
|
_init: function() {
|
|
var self = this, options = this.options;
|
|
if ( $.ui.dropdownchecklist.gIDCounter == null) {
|
|
$.ui.dropdownchecklist.gIDCounter = 1;
|
|
}
|
|
// item blurring relies on a cancelable timer
|
|
self.blurringItem = null;
|
|
|
|
// sourceSelect is the select on which the plugin is applied
|
|
var sourceSelect = self.element;
|
|
self.initialDisplay = sourceSelect.css("display");
|
|
sourceSelect.css("display", "none");
|
|
self.initialMultiple = sourceSelect.prop("multiple");
|
|
self.isMultiple = self.initialMultiple;
|
|
if (options.forceMultiple != null) { self.isMultiple = options.forceMultiple; }
|
|
sourceSelect.prop("multiple", true);
|
|
self.sourceSelect = sourceSelect;
|
|
|
|
// append the control that resembles a single selection select
|
|
var controlWrapper = self._appendControl();
|
|
self.controlWrapper = controlWrapper;
|
|
self.controlSelector = controlWrapper.find(".ui-dropdownchecklist-selector");
|
|
|
|
// create the drop container where the items are shown
|
|
var dropWrapper = self._appendDropContainer(controlWrapper);
|
|
self.dropWrapper = dropWrapper;
|
|
|
|
// append the items from the source select element
|
|
var dropCalculatedSize = self._appendItems();
|
|
|
|
// updates the text shown in the control
|
|
self._updateControlText(controlWrapper, dropWrapper, sourceSelect);
|
|
|
|
// set the sizes of control and drop container
|
|
self._setSize(dropCalculatedSize);
|
|
|
|
// look for possible auto-check needed on first item
|
|
if ( options.firstItemChecksAll ) {
|
|
self._syncSelected(null);
|
|
}
|
|
// BGIFrame for IE6
|
|
if (options.bgiframe && typeof self.dropWrapper.bgiframe == "function") {
|
|
self.dropWrapper.bgiframe();
|
|
}
|
|
// listen for change events on the source select element
|
|
// ensure we avoid processing internally triggered changes
|
|
self.sourceSelect.change(function(event, eventName) {
|
|
if (eventName != 'ddcl_internal') {
|
|
self._sourceSelectChangeHandler(event);
|
|
}
|
|
});
|
|
},
|
|
// Refresh the disable and check state from the underlying control
|
|
_refreshOption: function(item,disabled,selected) {
|
|
var aParent = item.parent();
|
|
// account for enabled/disabled
|
|
if ( disabled ) {
|
|
item.prop("disabled",true);
|
|
item.removeClass("active");
|
|
item.addClass("inactive");
|
|
aParent.addClass("ui-state-disabled");
|
|
} else {
|
|
item.prop("disabled",false);
|
|
item.removeClass("inactive");
|
|
item.addClass("active");
|
|
aParent.removeClass("ui-state-disabled");
|
|
}
|
|
// adjust the checkbox state
|
|
item.prop("checked",selected);
|
|
},
|
|
_refreshGroup: function(group,disabled) {
|
|
if ( disabled ) {
|
|
group.addClass("ui-state-disabled");
|
|
} else {
|
|
group.removeClass("ui-state-disabled");
|
|
}
|
|
},
|
|
// External command to explicitly close the dropdown
|
|
close: function() {
|
|
this._toggleDropContainer(false);
|
|
},
|
|
// External command to refresh the ddcl from the underlying selector
|
|
refresh: function() {
|
|
var self = this, sourceSelect = this.sourceSelect, dropWrapper = this.dropWrapper;
|
|
|
|
var allCheckBoxes = dropWrapper.find("input");
|
|
var allGroups = dropWrapper.find(".ui-dropdownchecklist-group");
|
|
|
|
var groupCount = 0;
|
|
var optionCount = 0;
|
|
sourceSelect.children().each(function(index) {
|
|
var opt = $(this);
|
|
var disabled = opt.prop("disabled");
|
|
if (opt.is("option")) {
|
|
var selected = opt.prop("selected");
|
|
var anItem = $(allCheckBoxes[optionCount]);
|
|
self._refreshOption(anItem, disabled, selected);
|
|
optionCount += 1;
|
|
} else if (opt.is("optgroup")) {
|
|
var text = opt.attr("label");
|
|
if (text != "") {
|
|
var aGroup = $(allGroups[groupCount]);
|
|
self._refreshGroup(aGroup, disabled);
|
|
groupCount += 1;
|
|
}
|
|
opt.children("option").each(function() {
|
|
var subopt = $(this);
|
|
var subdisabled = (disabled || subopt.prop("disabled"));
|
|
var selected = subopt.prop("selected");
|
|
var subItem = $(allCheckBoxes[optionCount]);
|
|
self._refreshOption(subItem, subdisabled, selected );
|
|
optionCount += 1;
|
|
});
|
|
}
|
|
});
|
|
// sync will handle firstItemChecksAll and updateControlText
|
|
self._syncSelected(null);
|
|
},
|
|
// External command to enable the ddcl control
|
|
enable: function() {
|
|
this.controlSelector.removeClass("ui-state-disabled");
|
|
this.disabled = false;
|
|
},
|
|
// External command to disable the ddcl control
|
|
disable: function() {
|
|
this.controlSelector.addClass("ui-state-disabled");
|
|
this.disabled = true;
|
|
},
|
|
// External command to destroy all traces of the ddcl control
|
|
destroy: function() {
|
|
$.Widget.prototype.destroy.apply(this, arguments);
|
|
this.sourceSelect.css("display", this.initialDisplay);
|
|
this.sourceSelect.prop("multiple", this.initialMultiple);
|
|
this.controlWrapper.unbind().remove();
|
|
this.dropWrapper.remove();
|
|
}
|
|
});
|
|
|
|
$.extend($.ui.dropdownchecklist, {
|
|
defaults: {
|
|
width: null
|
|
, maxDropHeight: null
|
|
, firstItemChecksAll: false
|
|
, closeRadioOnClick: false
|
|
, minWidth: 50
|
|
, positionHow: 'absolute'
|
|
, bgiframe: false
|
|
, explicitClose: null
|
|
}
|
|
});
|
|
|
|
})(jQuery); |