325 lines
12 KiB
JavaScript
325 lines
12 KiB
JavaScript
// vim: et:ts=4:sw=4:sts=4:ft=js
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// check out http://ejohn.org/apps/learn/#36 (-#38, making fns work w/o new)
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Ox.Element = function() {
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/***
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Basic element object
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***/
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/*
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tooltip option can be any of the following:
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string
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function(e), returns string
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{mousemove: true, title: function(e)}
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*/
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return function(options, self) {
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if (!(this instanceof arguments.callee)) {
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return new arguments.callee(options, self);
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}
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self = self || {};
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self.options = options || {};
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// allow for Ox.Element('tagname', self)
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if (typeof self.options == 'string') {
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self.options = {
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element: self.options
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};
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}
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if (!self.$eventHandler) {
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self.$eventHandler = $('<div>');
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}
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var that = new Ox.JQueryElement(
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$('<' + (self.options.element || 'div') + '>')
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)
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.mousedown(mousedown);
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/*
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self.options.tooltip && that.bind(Ox.extend({
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mouseenter: mouseenter,
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mouseleave: mouseleave
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}, self.options.tooltip.mousemove ? {
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mousemove: mousemove
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} : {}));
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*/
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function mousedown(e) {
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/*
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better mouse events
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mousedown:
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trigger mousedown
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within 250 msec:
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mouseup: trigger anyclick ("click" would collide with click events of certain widgets)
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mouseup + mousedown: trigger doubleclick
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after 250 msec:
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mouseup + no mousedown within 250 msec: trigger singleclick
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no mouseup within 250 msec:
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trigger mouserepeat every 50 msec
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trigger dragstart
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mousemove: trigger drag
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no mousemove within 250 msec:
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trigger dragpause
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mouseup: trigger dragend
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*/
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var clientX, clientY,
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dragTimeout = 0,
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mouseInterval = 0;
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if (!self.mouseTimeout) {
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// first mousedown
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that.triggerEvent('mousedown', e);
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self.mouseup = false;
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self.mouseTimeout = setTimeout(function() {
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self.mouseTimeout = 0;
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if (self.mouseup) {
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// singleclick
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that.triggerEvent('singleclick', e);
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} else {
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// mouserepeat, drag
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clientX = e.clientX;
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clientY = e.clientY;
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that.triggerEvent('dragstart', e);
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mouserepeat();
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mouseInterval = setInterval(mouserepeat, 50);
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Ox.UI.$window.unbind('mouseup', mouseup)
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.mousemove(mousemove)
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.one('mouseup', function(e) {
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clearInterval(mouseInterval);
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clearTimeout(dragTimeout);
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Ox.UI.$window.unbind('mousemove', mousemove);
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that.triggerEvent('dragend', extend(e));
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});
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that.one('mouseleave', function() {
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clearInterval(mouseInterval);
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});
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}
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}, 250);
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} else {
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// second mousedown
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clearTimeout(self.mouseTimeout);
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self.mouseTimeout = 0;
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that.triggerEvent('doubleclick', e);
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}
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Ox.UI.$window.one('mouseup', mouseup);
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function extend(e) {
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return Ox.extend({
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clientDX: e.clientX - clientX,
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clientDY: e.clientY - clientY
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}, e);
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}
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function mousemove(e) {
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e = extend(e);
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clearTimeout(dragTimeout);
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dragTimeout = setTimeout(function() {
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that.triggerEvent('dragpause', e);
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}, 250);
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that.triggerEvent('drag', e);
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}
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function mouserepeat() {
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that.triggerEvent('mouserepeat');
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}
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function mouseup(e) {
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// only trigger on firse mouseup
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if (!self.mouseup) {
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that.triggerEvent('anyclick', e);
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self.mouseup = true;
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}
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}
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}
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/*
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function mouseenter(e) {
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self.$tooltip = new Ox.Tooltip({
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title: Ox.isString(self.options.tooltip) ?
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self.options.tooltip : Ox.isFunction(self.options.tooltip) ?
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self.options.tooltip(e) : self.options.tooltip.title(e)
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}).show();
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}
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function mouseleave(e) {
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self.$tooltip.hide();
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}
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function mousemove(e) {
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self.$tooltip.options({
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title: self.options.tooltip.title(e)
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});
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}
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*/
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self.onChange = function() {
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// self.onChange(key, value)
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// is called when an option changes
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// (to be implemented by widget)
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// fixme: rename to self.setOption
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};
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that._leakSelf = function() { // fixme: remove
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return self;
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}
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that.bindEvent = function() {
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/***
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binds a function to an event triggered by this object
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Usage
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bindEvent(event, fn) or bindEvent({event0: fn0, event1: fn1, ...})
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***/
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if (arguments.length == 1) {
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Ox.forEach(arguments[0], function(fn, event) {
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// Ox.print(that.id, 'bind', event);
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self.$eventHandler.bind('ox_' + event, fn);
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});
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} else {
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// Ox.print(that.id, 'bind', arguments[0]);
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self.$eventHandler.bind('ox_' + arguments[0], arguments[1]);
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}
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return that;
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}
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that.bindEventOnce = function() {
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if (arguments.length == 1) {
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Ox.forEach(arguments[0], function(fn, event) {
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self.$eventHandler.one('ox_' + event, fn);
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});
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} else {
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self.$eventHandler.one('ox_' + arguments[0], arguments[1]);
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}
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return that;
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};
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that.defaults = function(defaults) {
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/***
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sets the default options
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Usage
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that.defaults({key0: value0, key1: value1, ...})
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***/
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self.defaults = defaults;
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delete self.options; // fixme: hackish fix for that = Ox.Foo({...}, self).defaults({...}).options({...})
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return that;
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};
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that.gainFocus = function() {
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/***
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make this object gain focus
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***/
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Ox.Focus.focus(that.id);
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return that;
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};
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that.hasFocus = function() {
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/***
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returns true if this object has focus
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***/
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return Ox.Focus.focused() == that.id;
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};
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that.loseFocus = function() {
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/***
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make this object lose focus
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***/
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Ox.Focus.blur(that.id);
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return that;
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};
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that.options = function() { // fixme: use Ox.getset
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/***
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get or set options
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Usage
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that.options() returns self.options
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that.options('foo') returns self.options.foo
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that.options('foo', x) sets self.options.foo,
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returns that
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that.options({foo: x, bar: y}) sets self.options.foo
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and self.options.bar,
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returns that
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***/
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var args,
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length = arguments.length,
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oldOptions,
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ret;
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if (length == 0) {
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// options()
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ret = self.options;
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} else if (length == 1 && typeof arguments[0] == 'string') {
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// options(str)
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ret = self.options ? self.options[arguments[0]] : options[arguments[0]];
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} else {
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// options (str, val) or options({str: val, ...})
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// translate (str, val) to ({str: val})
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args = Ox.makeObject.apply(that, arguments || {});
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oldOptions = $.extend({}, self.options);
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// if options have not been set, extend defaults,
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// otherwise, extend options
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//self.options = $.extend(self.options, self.options ? {} : self.defaults, args);
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self.options = $.extend({}, self.defaults, self.options, args);
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//self.options = $.extend(self.options || self.defaults, args);
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Ox.forEach(args, function(val, key) {
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// key == 'id' && id && Ox.Event.changeId(id, value);
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/*!Ox.equals(value, oldOptions[key]) &&*/ self.onChange(key, val);
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});
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ret = that;
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}
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return ret;
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};
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that.removeElement = function() {
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/***
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remove this element, including its event handler
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***/
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that.loseFocus();
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delete self.$eventHandler;
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that.remove();
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delete Ox.UI.elements[that.id];
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return that;
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};
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that.triggerEvent = function() {
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/***
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triggers an event
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Usage
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triggerEvent(event)
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triggerEvent(event, data)
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triggerEvent({event0: data0, event1: data1, ...})
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***/
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if (Ox.isObject(arguments[0])) {
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Ox.forEach(arguments[0], function(data, event) {
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if (['mousedown', 'mouserepeat', 'anyclick', 'singleclick', 'doubleclick', 'dragstart', 'drag', 'dragpause', 'dragend', 'playing'].indexOf(event) == -1) {
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Ox.print(that.id, self.options.id, 'trigger', event, data);
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}
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self.$eventHandler.trigger('ox_' + event, data);
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});
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} else {
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if (['mousedown', 'mouserepeat', 'anyclick', 'singleclick', 'doubleclick', 'dragstart', 'drag', 'dragpause', 'dragend', 'playing'].indexOf(arguments[0]) == -1) {
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Ox.print(that.id, self.options ? self.options.id : '', 'trigger', arguments[0], arguments[1] || {});
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}
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self.$eventHandler.trigger('ox_' + arguments[0], arguments[1] || {});
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}
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return that;
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};
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that.unbindEvent = function() {
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/***
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unbinds a function from an event triggered by this element
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Usage
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unbindEvent(event, fn)
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unbindEvent({event0: fn0, event1: fn1, ...})
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***/
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if (arguments.length == 1) {
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Ox.forEach(arguments[0], function(fn, event) {
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// Ox.print(that.id, 'unbind', arguments[0]);
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self.$eventHandler.unbind('ox_' + event, fn);
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});
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} else {
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// Ox.print(that.id, 'unbind', arguments[0]);
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self.$eventHandler.unbind('ox_' + arguments[0], arguments[1]);
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}
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return that;
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};
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return that;
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}
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}();
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