383 lines
14 KiB
JavaScript
383 lines
14 KiB
JavaScript
(function($) {
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/*****************************************************************
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* Select
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*****************************************************************/
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function Select(el, options) {
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this.$el = $(el);
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this.id = Math.random();
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this.options = options;
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this.multiple = this.$el.prop('multiple');
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this.activeOpt = null;
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this.widthSet = false;
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this.generate();
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}
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Select.prototype = {
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generate: function() {
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if (!this.$select) {
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var _self = this;
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this.$select = $('<div class="wSelect"><div class="wSelect-arrow"></div></div>');
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this.$optionsHolder = $('<div class="wSelect-options-holder"></div>');
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this.$options = $('<div class="wSelect-options"></div>');
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// ie 7 fix to get proper zIndex on select dropdowns
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if(!$.support.placeholder) {
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this.$select.css('zIndex', 100 - this.$el.index());
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}
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var click = function(e) {
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e.stopPropagation();
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$('select').each(function() {
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var wSelect = $(this).data('wSelect');
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if (wSelect && wSelect.id !== _self.id) {
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if (!wSelect.multiple) { wSelect.$optionsHolder.hide(); }
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wSelect.onBlur();
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}
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});
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if (!_self.multiple) { _self.onClick(e); }
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_self.$el.focus();
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};
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if (this.multiple) {
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this.$select.addClass('wSelect-multiple');
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this.$optionsHolder.click(click);
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}
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else {
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this.$selected = $('<div class="wSelect-selected"></div>');
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this.$select.append(this.$selected);
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this.$select.click(click);
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this.$optionsHolder.click(function(e) {
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e.stopPropagation();
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_self.$el.focus();
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});
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}
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this.$select.hover(
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function(){ _self.onFocus('hover'); },
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function(){ _self.onBlur('hover'); }
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);
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this.$el.addClass('wSelect-el')
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.change(function() { _self.change(); })
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.focus(function() { _self.onFocus(); })
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.keydown(function(e) { _self.keydown(e); })
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.keyup(function(e) { _self.keyup(e); });
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$(document).click(function() {
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if (!_self.multiple) { _self.$optionsHolder.hide(); }
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_self.onBlur();
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});
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this.widthSet = this.$select.width() > 0;
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this.setTheme(this.options.theme);
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this.setSize(this.options.size);
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this.reset();
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this.$optionsHolder.append(this.$options);
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this.$select.append(this.$optionsHolder);
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this.$el.after(this.$select);//.hide();
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}
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return this.$select;
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},
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reset: function() {
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var _self = this;
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this.$options.children().remove();
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this.$el.children().each(function() {
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var option = new Option(this, _self);
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$.data(this, 'wSelect-option', option);
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_self.$options.append(option.generate());
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});
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this.$options.children().removeClass('wSelect-option-last').last().addClass('wSelect-option-last');
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this.setSize(this.options.size);
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},
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change: function() {
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this.$options.children().removeClass('wSelect-option-selected wSelect-option-active');
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this.$el.children(':selected').each(function() {
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$(this).data('wSelect-option').select();
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});
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},
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keydown: function(e) {
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// tab
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if (e.keyCode === 9) {
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this.$optionsHolder.hide();
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this.onBlur();
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}
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},
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keyup: function(e) {
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// enter
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if (e.keyCode === 13) {
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this.$optionsHolder.hide();
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}
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// left, up, right, down
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else if (e.keyCode >= 37 && e.keyCode <= 40) {
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this.change();
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var $option = this.$options.find('.wSelect-option-selected:last'),
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scrollTop = this.$options.scrollTop(),
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top = $option.position().top + scrollTop,
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optionsHeight = this.$options.height(),
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optionHeight = $option.outerHeight(true);
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if (top - scrollTop < 0) {
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this.$options.scrollTop(top);
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}
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else if (top + optionHeight - scrollTop > optionsHeight) {
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this.$options.scrollTop(top - optionsHeight + optionHeight);
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}
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}
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},
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onClick: function(e) {
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// find best fit for dropdowns (top or bottom)
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if (!this.$optionsHolder.is(':visible')) {
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var top = this.$select.offset().top - $(window).scrollTop(),
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optionsHeight = this.$optionsHolder.outerHeight(),
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topDiff = top - optionsHeight,
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botDiff = $(window).height() - (top + this.$select.outerHeight() + optionsHeight + 5), // 5 is just for some bottom screen padding
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newTop = (botDiff > 0 || botDiff > topDiff) ? this.$select.height() : -optionsHeight;
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this.$optionsHolder.css('top', newTop);
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}
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this.$optionsHolder.toggle();
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},
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onFocus: function(className) {
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className = className || 'active';
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if (this.options.highlight) {
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this.$select.addClass(`wSelect-${className}`);
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}
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},
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onBlur: function(className) {
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className = className || 'active';
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if (this.options.highlight) {
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this.$select.removeClass(`wSelect-${className}`);
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}
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},
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setTheme: function(theme) {
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this.$select.attr('class', this.$select.attr('class').replace(/wSelect-theme-.+\s|wSelect-theme-.+$/, ''));
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this.$select.addClass(`wSelect-theme-${theme}`);
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},
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setSize: function(size) {
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var $option = this.$options.children(':first').clone().css({position:'absolute', left:-10000}),
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numOptions = this.$el.children().length,
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height;
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$('body').append($option);
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height = $option.outerHeight(true);
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$option.remove();
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if (!this.multiple && size > numOptions) {
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size = numOptions;
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}
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this.$options.height(height * size - 1);
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}
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};
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/*****************************************************************
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* Option
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*****************************************************************/
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function Option(el, wSelect) {
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this.$el = $(el);
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this.wSelect = wSelect;
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}
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Option.prototype = {
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generate: function() {
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var _self = this;
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if (!this.$option) {
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var icon = this.$el.attr('data-icon');
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this.$option = $('<div class="wSelect-option"></div>');
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this.$value = $('<div class="wSelect-option-value"></div>');
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this.$option.append(this.$value);
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if (typeof icon === 'string') {
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this.$value.addClass('wSelect-option-icon');
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this.$value.css('backgroundImage', `url(${icon})`);
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}
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}
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if (this.$el.prop('selected')) this.select();
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if (this.$el.prop('disabled')) {
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this.$option.addClass('wSelect-option-disabled');
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}
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else {
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this.$option.removeClass('wSelect-option-disabled');
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this.$option.unbind('click').click(function(e){ _self.onClick(e); });
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}
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this.$value.html(this.$el.html()); // in case html has changed we always set it here
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this.setWidth();
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return this.$option;
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},
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select: function() {
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if (!this.wSelect.activeOpt) {
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this.wSelect.activeOpt = this;
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}
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if (!this.wSelect.multiple) {
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var icon = this.$el.attr('data-icon');
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if (typeof icon === 'string') {
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this.wSelect.$selected.addClass('wSelect-option-icon');
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this.wSelect.$selected.css('backgroundImage', `url(${icon})`);
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}
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else {
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this.wSelect.$selected.removeClass('wSelect-option-icon');
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this.wSelect.$selected.css('backgroundImage', '');
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}
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//if(!this.wSelect.focus) { this.wSelect.$optionsHolder.hide(); }
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this.wSelect.$selected.html(this.$el.html());
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}
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this.$option.addClass('wSelect-option-selected');
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},
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onClick: function(e) {
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var selVal = null;
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if (this.wSelect.multiple && (e.ctrlKey || e.shiftKey) ) {
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if (e.ctrlKey || !this.wSelect.activeOpt) {
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selVal = this.wSelect.$el.val() || [];
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var optVal = this.$el.val(),
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arrayPos = $.inArray(optVal, selVal);
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if (arrayPos === -1) {
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selVal.push(this.$el.val());
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this.wSelect.activeOpt = this; // only set active when "selecting"
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}
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else selVal.splice(arrayPos, 1);
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}
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// don't set active here as the shift+click only highlights from active option
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else if (e.shiftKey) {
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var indexActive = this.wSelect.activeOpt.$el.index(),
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indexCurrent = this.$el.index(),
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indexStart = 0,
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indexEnd = 0,
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$option = null;
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if (indexCurrent > indexActive) {
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indexStart = indexActive;
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indexEnd = indexCurrent;
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} else {
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indexStart = indexCurrent;
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indexEnd = indexActive;
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}
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selVal = [];
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for (var i=indexStart; i<=indexEnd; i++) {
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$option = this.wSelect.$el.children(`:eq(${i})`);
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if ($option.is(':not(:disabled)')) {
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selVal.push($option.val());
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}
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}
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}
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}
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else {
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selVal = this.$el.val();
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this.wSelect.$optionsHolder.hide();
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this.wSelect.activeOpt = this;
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}
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this.wSelect.$el.val(selVal).change();
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},
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// help us set the proper widths based on given values (this way so we can add options on the fly one at a time)
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setWidth: function() {
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if (this.wSelect.multiple || this.wSelect.widthSet) { return true; }
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this.$option.hide().appendTo('body');
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var optionWidth = this.$option.width();
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if (optionWidth > this.wSelect.$select.width()) {
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this.wSelect.$select.width(optionWidth);
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}
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this.$option.detach().show();
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}
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};
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/*****************************************************************
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* fn.wSelect
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*****************************************************************/
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$.support.placeholder = 'placeholder' in document.createElement('input');
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$.fn.wSelect = function(options, value) {
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if (typeof options === 'string') {
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var values = [];
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var elements = this.each(function() {
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var wSelect = $(this).data('wSelect');
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if (wSelect) {
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var func = (value ? 'set' : 'get') + options.charAt(0).toUpperCase() + options.substring(1).toLowerCase();
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if (wSelect[options]) {
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wSelect[options].apply(wSelect, [value]);
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} else if (value) {
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if (wSelect[func]) { wSelect[func].apply(wSelect, [value]); }
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if (wSelect.options[options]) { wSelect.options[options] = value; }
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} else {
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if(wSelect[func]) { values.push(wSelect[func].apply(wSelect, [value])); }
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else if (wSelect.options[options]) { values.push(wSelect.options[options]); }
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else { values.push(null); }
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}
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}
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});
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if (values.length === 1) { return values[0]; }
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else if (values.length > 0) { return values; }
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else { return elements; }
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}
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options = $.extend({}, $.fn.wSelect.defaults, options);
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function get(el) {
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var wSelect = $.data(el, 'wSelect');
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if (!wSelect) {
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var _options = jQuery.extend(true, {}, options);
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_options.size = $(el).prop('size') || _options.size;
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wSelect = new Select(el, _options);
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$.data(el, 'wSelect', wSelect);
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}
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return wSelect;
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}
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return this.each(function() { get(this); });
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};
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$.fn.wSelect.defaults = {
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theme: 'classic', // theme
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size: '4', // default number of options to display (overwrite with `size` attr on `select` element)
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highlight: true // highlight fields when selected
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};
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})(jQuery); |