patternpicker.js
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(function($, undefined) {
function limitValue(value, minLimit, maxLimit) {
return Math.max( minLimit, Math.min( maxLimit, value));
}
var ui = kendo.ui,
Widget = ui.Widget,
support = kendo.support,
click = support.touch ? "touchend" : "click",
Class = kendo.Class,
proxy = $.proxy,
ACTIVE_STATE = "km-state-active",
PatternPicker = Widget.extend({
init: function (element, options) {
var that = this, popupElement, repeat;
Widget.fn.init.call(that, element, options);
element = that.element;
options = that.options;
if (!options.filter) {
element.addClass("k-sampler");
}
that.bgimage = element.css("background-image");
that.backgroundPosX = element.css("background-position-x");
that.backgroundPosY = element.css("background-position-y");
repeat = element.css("background-repeat");
that.backgroundRepeatX = repeat == "repeat" || repeat == "repeat-x";
that.backgroundRepeatY = repeat == "repeat" || repeat == "repeat-y";
that.styleengine = options.styleEngine || that.element.parents(".device").data("kendoStyleEngine");
that.popup = new ui.Popup("<div class='k-patternpick'></div>", {
anchor: element,
origin: "bottom center",
position: "top center",
open: function () {
},
close: function () {
if (that.styleengine) {
var background = { "background-image": that.bgimage };
background = that.styleengine.mixBackground(background, that.element);
that.styleengine.update(that.element, background);
}
}
});
popupElement = that.popup.element.addClass("k-list-container");
that.preview = $("<div class='pattern-preview'></div>").appendTo(popupElement);
that._update();
if (!options.filter) {
$(document.body)
.on(click, ".k-sampler", function(e) {
if (e.currentTarget == element[0]) {
e.preventDefault();
that._toggle();
}
});
} else {
$(element)
.on(click, options.filter, function(e) {
if (support.matchesSelector.call(e.currentTarget, options.filter)) {
e.preventDefault();
that.target = $(e.currentTarget);
that.popup.options.anchor = that.target;
that._toggle();
}
});
}
var repeatXID = kendo.guid(),
repeatYID = kendo.guid(),
urlLabel = $('<label class="label">Pattern Url</label>').appendTo(popupElement).after('<br />');
that.urlValue = $('<input type="text" class="input-value" title="Url" />').appendTo(urlLabel);
that.repeatXValue = $('<input id="' + repeatXID + '" type="checkbox" class="k-checkbox check-value" title="repeat-x" />')
.appendTo(popupElement);
that.repeatYValue = $('<input id="' + repeatYID + '" type="checkbox" class="k-checkbox check-value" title="repeat-y" />')
.appendTo(popupElement);
that.positionXValue = $('<input type="text" class="input-value" title="position-x" />')
.appendTo($('<label class="label">X</label>').appendTo(popupElement));
that.positionYValue = $('<input type="text" class="input-value" title="position-y" />')
.appendTo($('<label class="label">Y</label>').appendTo(popupElement));
that.urlValue.val(that.bgimage.replace(/url\(["']?|["']?\);?/g, ""));
that.repeatXValue
.before('<span class="label-title">Repeat</span>')
.after('<label for="' + repeatXID + '" class="k-checkbox label" title="repeat-x">X</label>')
[0].checked = that.backgroundRepeatX;
that.repeatYValue
.after('<label for="' + repeatYID + '" class="k-checkbox label label-y" title="repeat-y">Y</label><br />');
[0].checked = that.backgroundRepeatY;
that.positionXValue
.val(that.backgroundPosX)
.parent().before('<span class="label-title">Position</span>');
that.positionYValue
.val(that.backgroundPosY);
popupElement.find("[title^=position]").keydown(proxy(that._keyDown, that));
popupElement.find("input[type=text]").bind("input", proxy(that._updateConnected, that));
popupElement.find("input[type=checkbox]").bind("change", proxy(that._updateConnected, that));
},
options: {
name: "PatternPicker",
filter: null,
toggleTarget: null,
styleEngine: null
},
open: function (target) {
if (typeof target != "undefined") {
this.target = target;
}
this._toggle(true);
},
close: function () {
this._toggle(false);
},
_updateConnected: function (clean) {
var that = this,
value = this.urlValue.val();
that.bgimage = value == "none" ? value : "url(" + value + ")";
var filter = that.options.filter,
target = !filter ? that.element : that.target,
repeatX = that.repeatXValue[0].checked,
repeatY = that.repeatYValue[0].checked,
positionX = that.positionXValue.val(),
positionY = that.positionYValue.val(),
css = {
backgroundImage: that.bgimage,
backgroundRepeat: repeatX && repeatY ? "repeat" : repeatX ? "repeat-x" : repeatY ? "repeat-y" : "no-repeat",
backgroundPosition: (/\d$/.test(positionX) ? positionX + "px" : positionX) + " " +
(/\d$/.test(positionY) ? positionY + "px" : positionY)
};
that.preview.css(css);
target.css(css);
if (clean) {
target.removeClass("k-none");
}
if (that.styleengine) {
target.attr("data-pattern", that.styleengine.createHash(JSON.stringify(kendo.getComputedStyles(target[0], [ "background-image", "background-repeat", "background-position" ]))));
}
},
_update: function (trigger) {
var that = this,
target = !that.options.filter ? that.element : that.target;
if (target) {
that.urlValue.val(that.bgimage.replace(/url\(["']?|["']?\);?/g, ""));
that.repeatXValue[0].checked = that.backgroundRepeatX;
that.repeatYValue[0].checked = that.backgroundRepeatY;
that.positionXValue.val(that.backgroundPosX);
that.positionYValue.val(that.backgroundPosY);
that._updateConnected(true);
if (trigger) {
that.trigger("pick", { color: that.color, target: target });
}
}
},
_keyDown: function (e) {
var target = $(e.target),
title = target.attr("title"),
value = target.val(),
unit = value.match(/[^\d\.]*$/);
if (e.which == 38 || e.which == 40) {
target.val(parseFloat(value) + (e.which == 38 ? 1 : -1) + unit);
target.trigger("input");
}
},
_toggle: function(open) {
var that = this, target, options = that.options, repeat;
if (options.filter) {
that.target = that.target || that.element.find(options.filter);
}
target = !options.filter ? that.element : that.target;
open = open !== undefined? open : that.options.filter ? true : !that.popup.visible();
if (open) {
that.bgimage = target.css("background-image");
that.backgroundPosX = target.css("background-position-x");
that.backgroundPosY = target.css("background-position-y");
repeat = target.css("background-repeat");
that.backgroundRepeatX = repeat == "repeat" || repeat == "repeat-x";
that.backgroundRepeatY = repeat == "repeat" || repeat == "repeat-y";
that._update();
}
that.popup[open ? "open" : "close"]();
}
});
ui.plugin(PatternPicker);
})(jQuery);