mirror of
https://github.com/jquery/jquery-ui.git
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362 lines
8.1 KiB
JavaScript
362 lines
8.1 KiB
JavaScript
/*
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* jQuery UI Spinner @VERSION
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*
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* Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Spinner
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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*/
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(function($) {
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$.widget('ui.spinner', {
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defaultElement: "<input>",
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options: {
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incremental: true,
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max: null,
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min: null,
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numberformat: null,
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page: 10,
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step: null,
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value: null
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},
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_create: function() {
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this._draw();
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this._markupOptions();
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this._mousewheel();
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this._aria();
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},
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_markupOptions: function() {
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var _this = this;
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$.each({
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min: -Number.MAX_VALUE,
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max: Number.MAX_VALUE,
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step: 1
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}, function(attr, defaultValue) {
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if (_this.options[attr] === null) {
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var value = _this.element.attr(attr);
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_this.options[attr] = typeof value == "string" && value.length > 0 ? _this._parse(value) : defaultValue;
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}
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});
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this.value(this.options.value !== null ? this.options.value : this.element.val() || 0);
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},
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_draw: function() {
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var self = this,
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options = self.options;
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var uiSpinner = this.uiSpinner = self.element
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.addClass('ui-spinner-input')
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.attr('autocomplete', 'off')
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.wrap(self._uiSpinnerHtml())
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.parent()
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// add buttons
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.append(self._buttonHtml())
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// add behaviours
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.hover(function() {
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if (!options.disabled) {
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$(this).addClass('ui-state-hover');
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}
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self.hovered = true;
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}, function() {
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$(this).removeClass('ui-state-hover');
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self.hovered = false;
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});
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this.element
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.attr( "role", "spinbutton" )
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.bind('keydown.spinner', function(event) {
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if (self.options.disabled) {
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return;
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}
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if (self._start(event)) {
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return self._keydown(event);
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}
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return true;
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})
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.bind('keyup.spinner', function(event) {
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if (self.options.disabled) {
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return;
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}
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if (self.spinning) {
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self._stop(event);
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self._change(event);
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}
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})
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.bind('focus.spinner', function() {
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uiSpinner.addClass('ui-state-active');
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self.focused = true;
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})
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.bind('blur.spinner', function(event) {
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self.value(self.element.val());
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if (!self.hovered) {
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uiSpinner.removeClass('ui-state-active');
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}
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self.focused = false;
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});
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// button bindings
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this.buttons = uiSpinner.find('.ui-spinner-button')
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.attr("tabIndex", -1)
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.button()
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.removeClass("ui-corner-all")
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.bind('mousedown', function(event) {
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if (self.options.disabled) {
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return;
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}
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if (self._start(event) === false) {
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return false;
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}
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self._repeat(null, $(this).hasClass('ui-spinner-up') ? 1 : -1, event);
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})
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.bind('mouseup', function(event) {
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if (self.options.disabled) {
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return;
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}
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if (self.spinning) {
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self._stop(event);
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self._change(event);
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}
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})
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.bind("mouseenter", function() {
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if (self.options.disabled) {
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return;
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}
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// button will add ui-state-active if mouse was down while mouseleave and kept down
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if ($(this).hasClass("ui-state-active")) {
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if (self._start(event) === false) {
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return false;
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}
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self._repeat(null, $(this).hasClass('ui-spinner-up') ? 1 : -1, event);
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}
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})
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.bind("mouseleave", function() {
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if (self.spinning) {
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self._stop(event);
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self._change(event);
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}
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});
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// disable spinner if element was already disabled
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if (options.disabled) {
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this.disable();
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}
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},
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_keydown: function(event) {
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var o = this.options,
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KEYS = $.ui.keyCode;
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switch (event.keyCode) {
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case KEYS.UP:
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this._repeat(null, 1, event);
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return false;
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case KEYS.DOWN:
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this._repeat(null, -1, event);
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return false;
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case KEYS.PAGE_UP:
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this._repeat(null, this.options.page, event);
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return false;
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case KEYS.PAGE_DOWN:
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this._repeat(null, -this.options.page, event);
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return false;
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case KEYS.ENTER:
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this.value(this.element.val());
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}
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return true;
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},
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_mousewheel: function() {
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// need the delta normalization that mousewheel plugin provides
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if (!$.fn.mousewheel) {
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return;
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}
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var self = this;
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this.element.bind("mousewheel.spinner", function(event, delta) {
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if (self.options.disabled) {
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return;
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}
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if (!self.spinning && !self._start(event)) {
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return false;
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}
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self._spin((delta > 0 ? 1 : -1) * self.options.step, event);
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clearTimeout(self.timeout);
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self.timeout = setTimeout(function() {
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if (self.spinning) {
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self._stop(event);
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self._change(event);
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}
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}, 100);
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event.preventDefault();
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});
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},
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_uiSpinnerHtml: function() {
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return '<span class="ui-spinner ui-state-default ui-widget ui-widget-content ui-corner-all"></span>';
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},
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_buttonHtml: function() {
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return '<a class="ui-spinner-button ui-spinner-up ui-corner-tr"><span class="ui-icon ui-icon-triangle-1-n">▲</span></a>' +
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'<a class="ui-spinner-button ui-spinner-down ui-corner-br"><span class="ui-icon ui-icon-triangle-1-s">▼</span></a>';
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},
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_start: function(event) {
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if (!this.spinning && this._trigger('start', event) !== false) {
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if (!this.counter) {
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this.counter = 1;
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}
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this.spinning = true;
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return true;
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}
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return false;
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},
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_repeat: function(i, steps, event) {
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var self = this;
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i = i || 500;
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clearTimeout(this.timer);
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this.timer = setTimeout(function() {
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self._repeat(40, steps, event);
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}, i);
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self._spin(steps * self.options.step, event);
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},
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_spin: function(step, event) {
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if (!this.counter) {
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this.counter = 1;
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}
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// TODO refactor, maybe figure out some non-linear math
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var newVal = this.value() + step * (this.options.incremental &&
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this.counter > 20
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? this.counter > 100
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? this.counter > 200
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? 100
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: 10
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: 2
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: 1);
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if (this._trigger('spin', event, { value: newVal }) !== false) {
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this.value(newVal);
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this.counter++;
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}
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},
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_stop: function(event) {
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this.counter = 0;
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if (this.timer) {
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window.clearTimeout(this.timer);
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}
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this.element[0].focus();
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this.spinning = false;
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this._trigger('stop', event);
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},
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_change: function(event) {
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this._trigger('change', event);
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},
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_setOption: function(key, value) {
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if (key == 'value') {
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value = this._parse(value);
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if (value < this.options.min) {
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value = this.options.min;
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}
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if (value > this.options.max) {
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value = this.options.max;
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}
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}
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if (key == 'disabled') {
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if (value) {
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this.element.attr("disabled", true);
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this.buttons.button("disable");
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} else {
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this.element.removeAttr("disabled");
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this.buttons.button("enable");
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}
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}
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this._super( "_setOption", key, value );
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},
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_setOptions: function( options ) {
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this._super( "_setOptions", options );
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if ( "value" in options ) {
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this._format( this.options.value );
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}
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this._aria();
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},
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_aria: function() {
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this.element
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.attr('aria-valuemin', this.options.min)
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.attr('aria-valuemax', this.options.max)
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.attr('aria-valuenow', this.options.value);
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},
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_parse: function(val) {
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var input = val;
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if (typeof val == 'string') {
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val = $.global && this.options.numberformat ? $.global.parseFloat(val) : +val;
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}
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return isNaN(val) ? null : val;
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},
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_format: function(num) {
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this.element.val( $.global && this.options.numberformat ? $.global.format(num, this.options.numberformat) : num );
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},
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destroy: function() {
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this.element
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.removeClass('ui-spinner-input')
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.removeAttr('disabled')
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.removeAttr('autocomplete')
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.removeAttr('role')
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.removeAttr('aria-valuemin')
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.removeAttr('aria-valuemax')
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.removeAttr('aria-valuenow');
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this._super( "destroy" );
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this.uiSpinner.replaceWith(this.element);
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},
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stepUp: function(steps) {
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this._spin((steps || 1) * this.options.step);
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},
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stepDown: function(steps) {
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this._spin((steps || 1) * -this.options.step);
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},
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pageUp: function(pages) {
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this.stepUp((pages || 1) * this.options.page);
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},
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pageDown: function(pages) {
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this.stepDown((pages || 1) * this.options.page);
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},
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value: function(newVal) {
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if (!arguments.length) {
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return this._parse(this.element.val());
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}
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this.option('value', newVal);
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},
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widget: function() {
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return this.uiSpinner;
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}
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});
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$.ui.spinner.version = "@VERSION";
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})(jQuery);
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