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vakata.js
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vakata.js
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/*
File: Helper functions
This file includes some functions that enable CSS manipulations, contextmenus, XSLT transformations and drag'n'drop.
All of those work independently of jstree.
*/
/*
Variable: $.vakata
*object* Holds all helper objects.
*/
(function ($) {
$.vakata = {};
})(jQuery);
/*
Group: Miscellaneous
Various small snippets.
*/
/*
Function: $().vakata_reverse
Makes it possible to apply the standard array reverse function to a jQuery collection.
Input:
> <div>1</div><div>2</div><div>3</div>
> $("div").vakata_reverse().each(function () { document.write(this.innerHTML); });
Output:
>321
*/
(function ($) {
$.fn.vakata_reverse = [].reverse;
})(jQuery);
/*
Function: $.vakata.array_remove
Makes it possible to remove an item (or a group of items) form an array.
http://ejohn.org/blog/javascript-array-remove/
Input:
> $.vakata.array_remove(['a', 'b', 'c'], 1);
Output:
>['a', 'c']
*/
(function ($) {
$.vakata.array_remove = function(array, from, to) {
var rest = array.slice((to || from) + 1 || array.length);
array.length = from < 0 ? array.length + from : from;
array.push.apply(array, rest);
return array;
};
})(jQuery);
/*
Function: $.vakata.array_unique
Returns only the unique items from an array.
Input:
> $.vakata.array_unique(['c','a','a','b','c','b']);
Output:
>['a', 'b', 'c']
*/
(function ($) {
$.vakata.array_unique = function(array) {
var a = [], i, j, l;
for(i = 0, l = array.length; i < l; i++) {
for(j = 0; j <= i; j++) {
if(array[i] === array[j]) {
break;
}
}
if(j === i) { a.push(array[i]); }
}
return a;
};
})(jQuery);
/*
Function: $.vakata.attributes
Collects all attributes from a DOM node.
*/
(function ($) {
$.vakata.attributes = function(node, with_values) {
node = $(node)[0];
var attr = with_values ? {} : [];
$.each(node.attributes, function (i, v) {
if($.inArray(v.nodeName.toLowerCase(),['style','contenteditable','hasfocus','tabindex']) !== -1) { return; }
if(v.nodeValue !== null && $.trim(v.nodeValue) !== '') {
if(with_values) { attr[v.nodeName] = v.nodeValue; }
else { attr.push(v.nodeName); }
}
});
return attr;
};
})(jQuery);
/*
Function: $.vakata.get_scrollbar_width
Gets the width of the scrollbar
*/
(function ($) {
var sb;
$.vakata.get_scrollbar_width = function () {
var e1, e2;
if(!sb) {
if(/msie/.test(navigator.userAgent.toLowerCase())) {
e1 = $('<textarea cols="10" rows="2"></textarea>').css({ position: 'absolute', top: -1000, left: 0 }).appendTo('body');
e2 = $('<textarea cols="10" rows="2" style="overflow: hidden;"></textarea>').css({ position: 'absolute', top: -1000, left: 0 }).appendTo('body');
sb = e1.width() - e2.width();
e1.add(e2).remove();
}
else {
e1 = $('<div />').css({ width: 100, height: 100, overflow: 'auto', position: 'absolute', top: -1000, left: 0 })
.prependTo('body').append('<div />').find('div').css({ width: '100%', height: 200 });
sb = 100 - e1.width();
e1.parent().remove();
}
}
return sb;
};
})(jQuery);
/*
Group: CSS
Functions needed to manipulate stylesheets (add, remove, change)
*/
(function ($) {
/*
Variable: $.vakata.css
*object* holds all CSS related functions
*/
$.vakata.css = {
/*
Function: $.vakata.css.get_css
Retrieves or deletes a specific rule.
Parameters:
rule_name - *string* the rule to search for (any CSS rule)
delete_flag - *boolean* whether you want to delete or simply retrieve a reference to the rule
sheet - the sheet to search in (do not specify this to search in all sheets)
Returns either:
a reference to the rule - if it was found and the delete flag was not set
true - if the delete flag was set and the rule was successfully removed
false - if the rule could not be found
See also:
<$.vakata.css.remove_css>
*/
get_css : function(rule_name, delete_flag, sheet) {
rule_name = rule_name.toLowerCase();
var css_rules = sheet.cssRules || sheet.rules,
j = 0;
do {
if(css_rules.length && j > css_rules.length + 5) { return false; }
if(css_rules[j].selectorText && css_rules[j].selectorText.toLowerCase() == rule_name) {
if(delete_flag === true) {
if(sheet.removeRule) { sheet.removeRule(j); }
if(sheet.deleteRule) { sheet.deleteRule(j); }
return true;
}
else { return css_rules[j]; }
}
}
while (css_rules[++j]);
return false;
},
/*
Function: $.vakata.css.add_css
Adds a rule.
Parameters:
rule_name - *string* the rule to add
sheet - a reference to the sheet to add to
Returns either:
a reference to the rule - if the rule was added
false - if the rule could not be added, or if such a rule already exists
*/
add_css : function(rule_name, sheet) {
if($.jstree.css.get_css(rule_name, false, sheet)) { return false; }
if(sheet.insertRule) { sheet.insertRule(rule_name + ' { }', 0); } else { sheet.addRule(rule_name, null, 0); }
return $.vakata.css.get_css(rule_name);
},
/*
Function: $.vakata.css.remove_css
Removes a rule, this functions is a shortcut to <$.vakata.css.get_css> with the delete flag set to true.
Parameters:
rule_name - *string* the rule to remove
sheet - the sheet to remove from (you can omit this and all sheets will be searched)
Returns either:
true - if rule was removed
false - if the rule could not be removed
See also:
<$.vakata.css.get_css>
*/
remove_css : function(rule_name, sheet) {
return $.vakata.css.get_css(rule_name, true, sheet);
},
/*
Function: $.vakata.css.add_sheet
Adds a whole stylesheet or appends to an existing stylesheet.
Parameters:
options - *object*:
options.url - location of the stylesheet - when this is supplied _options.str_ and _options.title_ should not be set and a new LINK element is always created
options.str - text content of the stylesheet - when this is supplied _options.url_ is not used. A STYLE element is used.
options.title - the ID of the added stylesheet (if you pass `foo` the ID will be `foo-stylesheet`), when the stylesheet exists the content is appended and no new stylesheet is created.
Returns:
a reference to the stylesheet
*/
add_sheet : function(opts) {
var tmp = false, is_new = true;
if(opts.str) {
if(opts.title) { tmp = $("style[id='" + opts.title + "-stylesheet']")[0]; }
if(tmp) { is_new = false; }
else {
tmp = document.createElement("style");
tmp.setAttribute('type',"text/css");
if(opts.title) { tmp.setAttribute("id", opts.title + "-stylesheet"); }
}
if(tmp.styleSheet) {
if(is_new) {
document.getElementsByTagName("head")[0].appendChild(tmp);
tmp.styleSheet.cssText = opts.str;
}
else {
tmp.styleSheet.cssText = tmp.styleSheet.cssText + " " + opts.str;
}
}
else {
tmp.appendChild(document.createTextNode(opts.str));
document.getElementsByTagName("head")[0].appendChild(tmp);
}
return tmp.sheet || tmp.styleSheet;
}
if(opts.url) {
if(document.createStyleSheet) {
try { tmp = document.createStyleSheet(opts.url); } catch (e) { }
}
else {
tmp = document.createElement('link');
tmp.rel = 'stylesheet';
tmp.type = 'text/css';
tmp.media = "all";
tmp.href = opts.url;
document.getElementsByTagName("head")[0].appendChild(tmp);
return tmp.styleSheet;
}
}
}
};
})(jQuery);
/*
Group: Drag'n'drop
Functions needed to drag'n'drop elements
*/
(function ($) {
// private variable
var vakata_dnd = {
element : false,
is_down : false,
is_drag : false,
helper : false,
helper_w: 0,
data : false,
init_x : 0,
init_y : 0,
scroll_l: 0,
scroll_t: 0,
scroll_e: false,
scroll_i: false
};
/*
Variable: $.vakata.dnd
*object* holds all DND related functions
*/
$.vakata.dnd = {
/*
Variable: $.vakata.dnd.settings
*object* holds the global settings object for DND. You can easily modify any of the settings.
>// modification example
>$.vakata.dnd.settings.threshold = 10;
*/
settings : {
/*
Variable: $.vakata.dnd.settings.scroll_speed
*integer* how fast (pixel count for each step) should a scrollable parent scroll when dragging near the edge. Default is _10_.
*/
scroll_speed : 10,
/*
Variable: $.vakata.dnd.settings.scroll_proximity
*integer* number of pixels from the edge of a scrollable parent below which the parent will start scrolling. Default is _20_.
*/
scroll_proximity : 20,
/*
Variable: $.vakata.dnd.settings.helper_left
*integer* number of pixels left of the cursor to move the drag-helper to. Default is _5_;
*/
helper_left : 5,
/*
Variable: $.vakata.dnd.settings.helper_top
*integer* number of pixels below the cursor to move the drag-helper to. Default is _10_.
*/
helper_top : 10,
/*
Variable: $.vakata.dnd.settings.threshold
*integer* amount of pixels required to move before the drag is started. Default is _5_.
*/
threshold : 5
},
/*
Function: $.vakata.dnd._trigger
Used internally to trigger all necessary events.
*/
_trigger : function (event_name, e) {
var data = $.vakata.dnd._get();
data.event = e;
$(document).triggerHandler("dnd_" + event_name + ".vakata", data);
},
/*
Function: $.vakata.dnd._get
Used internally to get all items for the drag event. Can be used by foreign code too.
*/
_get : function () {
return {
"data" : vakata_dnd.data,
"element" : vakata_dnd.element,
"helper" : vakata_dnd.helper
};
},
/*
Function: $.vakata.dnd._clean
Used internally to cleanup after a drop, so that all variables are nulled and ready for the next drag.
*/
_clean : function () {
if(vakata_dnd.helper) { vakata_dnd.helper.remove(); }
if(vakata_dnd.scroll_i) { clearInterval(vakata_dnd.scroll_i); vakata_dnd.scroll_i = false; }
vakata_dnd = {
element : false,
is_down : false,
is_drag : false,
helper : false,
helper_w: 0,
data : false,
init_x : 0,
init_y : 0,
scroll_l: 0,
scroll_t: 0,
scroll_e: false,
scroll_i: false
};
$(document).unbind("mousemove", $.vakata.dnd.drag);
$(document).unbind("mouseup", $.vakata.dnd.stop);
},
/*
Function: $.vakata.dnd._scroll
Used internally to scroll hovered elements.
Triggers:
<dnd_scroll>
Event: dnd_scroll
Fires when a container is scrolled due to dragging near its edge. Triggered on the document, the event is fired in the *vakata* namespace.
Parameters:
data.event - the scrolled element
data.data - the data you supplied when calling <$.vakata.dnd.start>
data.element - the origin element
data.helper - the jquery extended drag-helper node (or false if it is not used)
Example:
>$(document).bind("dnd_start.vakata", function (e, data) {
> // do something
>});
*/
_scroll : function (init_only) {
if(!vakata_dnd.scroll_e || (!vakata_dnd.scroll_l && !vakata_dnd.scroll_t)) {
if(vakata_dnd.scroll_i) { clearInterval(vakata_dnd.scroll_i); vakata_dnd.scroll_i = false; }
return false;
}
if(!vakata_dnd.scroll_i) {
vakata_dnd.scroll_i = setInterval($.vakata.dnd._scroll, 100);
return false;
}
if(init_only === true) { return false; }
var i = vakata_dnd.scroll_e.scrollTop(),
j = vakata_dnd.scroll_e.scrollLeft();
vakata_dnd.scroll_e.scrollTop(i + vakata_dnd.scroll_t * $.vakata.dnd.settings.scroll_speed);
vakata_dnd.scroll_e.scrollLeft(j + vakata_dnd.scroll_l * $.vakata.dnd.settings.scroll_speed);
if(i !== vakata_dnd.scroll_e.scrollTop() || j !== vakata_dnd.scroll_e.scrollLeft()) {
$.vakata.dnd._trigger("scroll", vakata_dnd.scroll_e);
}
},
/*
Function: $.vakata.dnd.start
Use this function to start a drag (usually with the mousedown event)
Parameters:
event - *event* the event which started the drag, when used with the mousedown event text selection is prevented
data - *mixed* some custom data you want to bind with that particular drag - you will receive this in all events
html - *mixed* the text for the drag-helper as a *string*, if set to _false_ no helper is shown
Returns:
false
Example:
>$("span").bind("mousedown", function (e) {
> return $.vakata.dnd.start(e, {}, "Dragging");
>});
*/
start : function (e, data, html) {
if(vakata_dnd.is_drag) { $.vakata.dnd.stop({}); }
try {
e.currentTarget.unselectable = "on";
e.currentTarget.onselectstart = function() { return false; };
if(e.currentTarget.style) { e.currentTarget.style.MozUserSelect = "none"; }
} catch(err) { }
vakata_dnd.init_x = e.pageX;
vakata_dnd.init_y = e.pageY;
vakata_dnd.data = data;
vakata_dnd.is_down = true;
vakata_dnd.element = e.currentTarget;
if(html !== false) {
vakata_dnd.helper = $("<div id='vakata-dnd'></div>").html(html).css({
"display" : "block",
"margin" : "0",
"padding" : "0",
"position" : "absolute",
"top" : "-2000px",
"lineHeight" : "16px",
"zIndex" : "10000"
});
}
$(document).bind("mousemove", $.vakata.dnd.drag);
$(document).bind("mouseup", $.vakata.dnd.stop);
return false;
},
/*
Function: $.vakata.dnd.drag
Used internally to process the mousemove event after <$.vakata.dnd.start> is called.
Parameters:
event - *event* the mousemove event
Triggers:
<dnd_start>, <dnd_move>
*/
drag : function (e) {
if(!vakata_dnd.is_down) { return; }
if(!vakata_dnd.is_drag) {
if(
Math.abs(e.pageX - vakata_dnd.init_x) > $.vakata.dnd.settings.threshold ||
Math.abs(e.pageY - vakata_dnd.init_y) > $.vakata.dnd.settings.threshold
) {
if(vakata_dnd.helper) {
vakata_dnd.helper.appendTo("body");
vakata_dnd.helper_w = vakata_dnd.helper.outerWidth();
}
vakata_dnd.is_drag = true;
/*
Event: dnd_start
Marks the start of the drag. Triggered on the document after a drag is initiated using <$.vakata.dnd.start> and the user has moved more than <$.vakata.dnd.settings.threshold> pixels, the event is fired in the *vakata* namespace.
Parameters:
data.event - the mousemove event
data.data - the data you supplied when calling <$.vakata.dnd.start>
data.element - the origin element
data.helper - the jquery extended drag-helper node (or false if it is not used)
Example:
>$(document).bind("dnd_start.vakata", function (e, data) {
> // do something
>});
*/
$.vakata.dnd._trigger("start", e);
}
else { return; }
}
var d = false, w = false,
dh = false, wh = false,
dw = false, ww = false,
dt = false, dl = false,
ht = false, hl = false;
vakata_dnd.scroll_t = 0;
vakata_dnd.scroll_l = 0;
vakata_dnd.scroll_e = false;
var p = $(e.target)
.parentsUntil("body").andSelf().vakata_reverse()
.filter(function () {
return (/^auto|scroll$/).test($(this).css("overflow")) &&
(this.scrollHeight > this.offsetHeight || this.scrollWidth > this.offsetWidth);
})
.each(function () {
var t = $(this), o = t.offset();
if(this.scrollHeight > this.offsetHeight) {
if(o.top + t.height() - e.pageY < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_t = 1; scr = true; }
if(e.pageY - o.top < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_t = -1; scr = true; }
}
if(this.scrollWidth > this.offsetWidth) {
if(o.left + t.width() - e.pageX < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_l = 1; scr = true; }
if(e.pageX - o.left < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_l = -1; scr = true; }
}
if(vakata_dnd.scroll_t || vakata_dnd.scroll_l) {
vakata_dnd.scroll_e = $(this);
return false;
}
});
if(!vakata_dnd.scroll_e) {
d = $(document); w = $(window);
dh = d.height(); wh = w.height();
dw = d.width(); ww = w.width();
dt = d.scrollTop(); dl = d.scrollLeft();
if(dh > wh && e.pageY - dt < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_t = -1; }
if(dh > wh && wh - (e.pageY - dt) < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_t = 1; }
if(dw > ww && e.pageX - dl < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_l = -1; }
if(dw > ww && ww - (e.pageX - dl) < $.vakata.dnd.settings.scroll_proximity) { vakata_dnd.scroll_l = 1; }
if(vakata_dnd.scroll_t || vakata_dnd.scroll_l) {
vakata_dnd.scroll_e = d;
}
}
if(vakata_dnd.scroll_e) { $.vakata.dnd._scroll(true); }
if(vakata_dnd.helper) {
ht = parseInt(e.pageY + $.vakata.dnd.settings.helper_top, 10);
hl = parseInt(e.pageX + $.vakata.dnd.settings.helper_left, 10);
if(dh && ht + 25 > dh) { ht = dh - 50; }
if(dw && hl + vakata_dnd.helper_w > dw) { hl = dw - (vakata_dnd.helper_w + 2); }
vakata_dnd.helper.css({
left : hl + "px",
top : ht + "px"
});
}
/*
Event: dnd_move
Triggered multiple times while dragging. This event is triggered on the document after the <dnd_start> event when the user moves the mouse, the event is fired in the *vakata* namespace.
Parameters:
data.event - the mousemove event
data.data - the data you supplied when calling <$.vakata.dnd.start>
data.element - the origin element
data.helper - the jquery extended drag-helper node (or false if it is not used)
Example:
>$(document).bind("dnd_move.vakata", function (e, data) {
> // do something
>});
*/
$.vakata.dnd._trigger("move", e);
},
/*
Function: $.vakata.dnd.stop
Used internally to process the mouseup event (drop) after <$.vakata.dnd.start> is called.
Parameters:
event - *event* the mouseup event
Triggers:
<dnd_stop>
*/
stop : function (e) {
/*
Event: dnd_stop
Marks the end of the drag. This event is triggered on the document after <dnd_start> (and possibly <dnd_move>) when a drop (mouseup) occurs or when the drag is programatically terminated, the event is fired in the *vakata* namespace.
Parameters:
data.event - the mouseup event (or _null_ if stopped programatically using <$.vakata.dnd.stop>())
data.data - the data you supplied when calling <$.vakata.dnd.start>
data.element - the origin element
data.helper - the jquery extended drag-helper node (or false if it is not used)
Example:
>$(document).bind("dnd_stop.vakata", function (e, data) {
> // do something
>});
*/
if(vakata_dnd.is_drag) {
$.vakata.dnd._trigger("stop", e);
}
$.vakata.dnd._clean();
}
};
})(jQuery);
/*
Group: XSLT
A function used to do XSLT transformations.
*/
(function ($) {
/*
Function: $.vakata.xslt
This functions transforms a XML string using a XSL string. The result is passed to a callback function.
Parameters:
xml - *string* the source xml string
xsl - *string* the xsl string
Returns:
the transformed result (or _false_ on failure)
Example:
>// simple
>$.vakata.xslt("<xml-string-here>", "<xsl-string-here>", function (res) { $("#some-container").append(res); });
>// with scope
>$.vakata.xslt("<xml-string-here>", "<xsl-string-here>", $.proxy(function (res) {
> this.some_process(res);
>}, some_object);
*/
$.vakata.xslt = function (xml, xsl) {
var r = false, p, q, s;
// IE9
if(r === false && window.ActiveXObject) {
try {
r = new ActiveXObject("Msxml2.XSLTemplate");
q = new ActiveXObject("Msxml2.DOMDocument");
q.loadXML(xml);
s = new ActiveXObject("Msxml2.FreeThreadedDOMDocument");
s.loadXML(xsl);
r.stylesheet = s;
p = r.createProcessor();
p.input = q;
p.transform();
r = p.output;
}
catch (e) { }
}
xml = $.parseXML(xml);
xsl = $.parseXML(xsl);
// FF, Chrome
if(r === false && typeof (XSLTProcessor) != "undefined") {
p = new XSLTProcessor();
p.importStylesheet(xsl);
r = p.transformToFragment(xml, document);
r = $('<div />').append(r).html();
}
// OLD IE
if(r === false && typeof (xml.transformNode) != "undefined") {
r = xml.transformNode(xsl);
}
return r;
};
})(jQuery);
/*
Group: Context menu
Functions needed to show a custom context menu.
*/
(function ($) {
var right_to_left = false,
vakata_context = {
element : false,
reference : false,
position_x : 0,
position_y : 0,
items : [],
html : "",
is_visible : false
};
/*
Variable: $.vakata.context
*object* holds all context menu related functions and variables.
*/
$.vakata.context = {
/*
Variable: $.vakata.context.settings
*object* holds the global settings object for context menus. You can easily modify any of the settings.
>// modification example
>$.vakata.context.settings.icons = false;
*/
settings : {
/*
Variable: $.vakata.context.settings.hide_onmouseleave
*integer* the amount of milliseconds to wait before hiding the menu after mouseleave. If set to _0_ the menu won't hide on mouseleave. Default is _0_.
*/
hide_onmouseleave : 0,
/*
Variable: $.vakata.context.settings.icons
*boolean* whether to show icons or not. Default is _true_.
*/
icons : true
},
/*
Function: $.vakata.context._trigger
Used internally to trigger all necessary events.
*/
_trigger : function (event_name) {
$(document).triggerHandler("context_" + event_name + ".vakata", {
"reference" : vakata_context.reference,
"element" : vakata_context.element,
"position" : {
"x" : vakata_context.position_x,
"y" : vakata_context.position_y
}
});
},
/*
Function: $.vakata.context._execute
Used internally to execute the action (if any) associated with an item.
Parameters:
i - the item's internal index
*/
_execute : function (i) {
i = vakata_context.items[i];
return i && !i._disabled && i.action ? i.action.call(null, {
"item" : i,
"reference" : vakata_context.reference,
"element" : vakata_context.element,
"position" : {
"x" : vakata_context.position_x,
"y" : vakata_context.position_y
}
}) : false;
},
/*
Function: $.vakata.context._parse
Used internally to parse a contextmenu description object to an HTML string.
Parameters:
o - *object* the contextmenu description object
is_callback - *boolean* used internally to indicate a recursive call
Triggers:
<context_parse>
*/
_parse : function (o, is_callback) {
if(!o) { return false; }
if(!is_callback) {
vakata_context.html = "";
vakata_context.items = [];
}
var str = "",
sep = false,
tmp;
if(is_callback) { str += "<ul>"; }
$.each(o, function (i, val) {
if(!val) { return true; }
vakata_context.items.push(val);
if(!sep && val.separator_before) {
str += "<li class='vakata-context-separator'><a href='#' " + ($.vakata.context.settings.icons ? '' : 'style="margin-left:0px;"') + "> </a></li>";
}
sep = false;
str += "<li class='" + (val._class || "") + (val._disabled ? " vakata-contextmenu-disabled " : "") + "'>";
str += "<a href='#' rel='" + (vakata_context.items.length - 1) + "'>";
if($.vakata.context.settings.icons) {
str += "<ins ";
if(val.icon) {
if(val.icon.indexOf("/") !== -1) { str += " style='background:url(\"" + val.icon + "\") center center no-repeat' "; }
else { str += " class='" + val.icon + "' "; }
}
str += "> </ins><span> </span>";
}
str += val.label + "</a>";
if(val.submenu) {
tmp = $.vakata.context._parse(val.submenu, true);
if(tmp) { str += tmp; }
}
str += "</li>";
if(val.separator_after) {
str += "<li class='vakata-context-separator'><a href='#' " + ($.vakata.context.settings.icons ? '' : 'style="margin-left:0px;"') + "> </a></li>";
sep = true;
}
});
str = str.replace(/<li class\='vakata-context-separator'\><\/li\>$/,"");
if(is_callback) { str += "</ul>"; }
/*
Event: context_parse
Triggered when the context menu is parsed but not yet shown. This event is triggered on the document in the *vakata* namespace.
Parameters:
reference - the DOM node used when <$.vakata.context.show> was called
element - the DOM node of the context menu (not yet populated and shown)
position - an object consisting of _x_ and _y_ keys, represinting the position of the menu (not yet shown)
Example:
>$(document).bind("context_parse.vakata", function (e, data) {
> // do something
>});
*/
if(!is_callback) { vakata_context.html = str; $.vakata.context._trigger("parse"); }
return str.length > 10 ? str : false;
},
/*
Function: $.vakata.context._show_submenu
Used internally to show a submenu
*/
_show_submenu : function (o) {
o = $(o);
if(!o.length || !o.children("ul").length) { return; }
var e = o.children("ul"),
x = o.offset().left + o.outerWidth(),
y = o.offset().top,
w = e.width(),
h = e.height(),
dw = $(document).width(),
dh = $(document).height();
// може да се спести е една проверка - дали няма някой от класовете вече нагоре
if(right_to_left) {
o[x - (w + 10 + o.outerWidth()) < 0 ? "addClass" : "removeClass"]("vakata-context-left");
}
else {
o[x + w + 10 > dw ? "addClass" : "removeClass"]("vakata-context-right");
}
if(y + h + 10 > dh) {
e.css("bottom","-1px");
}
e.show();
},
/*
Function: $.vakata.context.show
Shows the context menu. Please note that at least one of _reference_ or _position_ should be specified.
Parameters:
reference - *jquery* associate the menu with a DOM element (optional)
position - *object* should contain _x_ and _y_ properties, those are the coordinates to show the menu at (optional
data - *object* the contextmenu description object. It should consist of keys, each key should be a <context_menu_item>. If not specified the function will search for $(reference).data('vakata_contextmenu') and use that.
Triggers:
<context_show>
Example:
>$(document).bind("contextmenu", function (e) {
> e.preventDefault();
> $.vakata.context.show(false, { x: e.pageX, y:e.pageY }, {
> "create" : {
> // only specify what you need
> "separator_after" : true,
> "label" : "Create",
> "action" : function (data) { alert("Create"); }
> },
> "rename" : {
> "label" : "Rename",
> "icon" : "./some-icon.png",
> "action" : function (data) { alert("Rename on " + data.reference); }
> },
> "edit" : {
> "label" : "Edit",
> // Clicking this won't hide the menu, the same can be achieved with:
> // "action" : function () { return false; }
> "submenu" : {
> "copy" : { "label" : "Copy", "action" : function () { } },
> "cut" : { "label" : "Cut", "action" : function () { } },
> "paste" : { "label" : "Paste", "_disabled" : true, "action" : function () { } }
> }
> },
> "delete" : {
> "separator_before" : true,
> "label" : "Delete",
> "action" : function (data) { alert("Delete"); }
> }
> });
>});
Variable: context_menu_item
*object* Used to construct a context menu entry, this structure will always be a part of an object.
separator_before - *boolean* should there be a separator before the item. Default is _false_.
separator_after - *boolean* should there be a separator after the item. Default is _false_.
icon - *string* if supplied this string is used for an icon, if it contains _/_ it is treated as file, otherwise it is applied as a class on an INS object.
label - *string* the text for this item
submenu - *object* if supplied this object is used to build a submenu. It should consist of keys, each of which is a <context_menu_item>.
_class - *string* if supplied this class is applied to the LI node.
_disabled - *boolean* is this item disabled.
action - *functon* if supplied it will be executed when this item is clicked / activated. If not supplied or the function returns _false_ the contextmenu won't be hidden after execution. To force a context use _$.proxy_.
In the function you will receive a single argument which is an object, consisting of four keys:
_item_ (the <context_menu_item> object),
_reference_ (the DOM node used when <$.vakata.context.show> was called),
_element_ (the DOM node of the context menu),
_position_ (an object consisting of _x_ and _y_ keys, represinting the current position of the menu)
See also:
<$.vakata.context.show>
*/
show : function (reference, position, data) {
if(vakata_context.element && vakata_context.element.length) {
vakata_context.element.width('');
}
switch(!0) {
case (!position && !reference):
return false;
case (!!position && !!reference):
vakata_context.reference = reference;
vakata_context.position_x = position.x;
vakata_context.position_y = position.y;
break;
case (!position && !!reference):
vakata_context.reference = reference;
var o = reference.offset();
vakata_context.position_x = o.left + reference.outerHeight();
vakata_context.position_y = o.top;
break;
case (!!position && !reference):
vakata_context.position_x = position.x;
vakata_context.position_y = position.y;
break;
}
if(!!reference && !data && $(reference).data('vakata_contextmenu')) {
data = $(reference).data('vakata_contextmenu');
}
if($.vakata.context._parse(data)) {
vakata_context.element.html(vakata_context.html);
}
if(vakata_context.items.length) {
var e = vakata_context.element,
x = vakata_context.position_x,
y = vakata_context.position_y,
w = e.width(),
h = e.height(),
dw = $(document).width(),
dh = $(document).height();
if(x + w + 20 > dw) {
x = dw - (w + 20);
}
if(y + h + 20 > dh) {
y = dh - (h + 20);
}
vakata_context.element
.css({ "left" : x, "top" : y })
.show()
.width(vakata_context.element.outerWidth()); // for ie6
vakata_context.is_visible = true;
/*
Event: context_show
Triggered when the context menu is shown. This event is triggered on the document in the *vakata* namespace.
Parameters:
reference - the DOM node used when <$.vakata.context.show> was called
element - the DOM node of the context menu
position - an object consisting of _x_ and _y_ keys, represinting the position of the menu
Example:
>$(document).bind("context_show.vakata", function (e, data) {
> // do something
>});
*/
$.vakata.context._trigger("show");
}
},
/*
Function: $.vakata.context.hide
Used internally to hide the contextmenu after a click, or on mouseleave, etc.
Triggers:
<context_hide>
*/
hide : function () {
if(vakata_context.is_visible) {
vakata_context.element.hide().find("ul").hide();
vakata_context.is_visible = false;
/*
Event: context_hide
Triggered when the context menu is hidden. This event is triggered on the document in the *vakata* namespace.
Parameters:
reference - the DOM node used when <$.vakata.context.show> was called
element - the DOM node of the context menu
position - an object consisting of _x_ and _y_ keys, represinting the position of the menu
Example:
>$(document).bind("context_hide.vakata", function (e, data) {
> // do something
>});
*/
$.vakata.context._trigger("hide");
}
}
};
$(function () {
right_to_left = $("body").css("direction") === "rtl";
var to = false,
css_string = '' +
'.vakata-context { display:none; _width:1px; } ' +
'.vakata-context, ' +
'.vakata-context ul { margin:0; padding:2px; position:absolute; background:#f5f5f5; border:1px solid #979797; ' +
' -moz-box-shadow:5px 5px 4px -4px #666666; -webkit-box-shadow:2px 2px 2px #999999; box-shadow:2px 2px 2px #999999; }' +
'.vakata-context ul { list-style:none; left:100%; margin-top:-2.7em; margin-left:-4px; } ' +
'.vakata-context li.vakata-context-right ul { left:auto; right:100%; margin-left:auto; margin-right:-4px; } ' +
'.vakata-context li { list-style:none; display:inline; }' +
'.vakata-context li a { display:block; padding:0 2em 0 2em; text-decoration:none; width:auto; color:black; white-space:nowrap; line-height:2.4em; ' +
' -moz-text-shadow:1px 1px 0px white; -webkit-text-shadow:1px 1px 0px white; text-shadow:1px 1px 0px white; ' +
' -moz-border-radius:1px; -webkit-border-radius:1px; border-radius:1px; }' +
'.vakata-context li a:hover { position:relative; background-color:#e8eff7; ' +
' -moz-box-shadow:0px 0px 2px #0a6aa1; -webkit-box-shadow:0px 0px 2px #0a6aa1; box-shadow:0px 0px 2px #0a6aa1; }' +
'.vakata-context li.vakata-context-hover > a { position:relative; background-color:#e8eff7; ' +
' -moz-box-shadow:0px 0px 2px #0a6aa1; -webkit-box-shadow:0px 0px 2px #0a6aa1; box-shadow:0px 0px 2px #0a6aa1; }' +