fontpicker.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",
fontStyles = [ "font-family", "font-size", "font-weight", "font-style", "line-height", "text-shadow" ],
FontPicker = 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.css = kendo.getComputedStyles(element[0], fontStyles);
that.styleengine = options.styleEngine || that.element.parents(".device").data("kendoStyleEngine");
that.popup = new ui.Popup("<div class='k-fontpick'></div>", {
anchor: element,
origin: "bottom center",
position: "top center",
open: function () {
},
close: function () {
if (that.styleengine) {
that.styleengine.update(that.element, that.css);
}
}
});
popupElement = that.popup.element;
that.preview = $("<div class='font-preview'><div><div>QUICK BROWN FOX JUMPS OVER THE LAZY DOG</div><div>quick brown fox jumps over the lazy dog</div><div>QUICK BROWN FOX JUMPS OVER THE LAZY DOG</div><div>quick brown fox jumps over the lazy dog</div></div></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();
}
});
}
$('<span class="label-title">Font family</span>').appendTo(popupElement);
that.fontFamilyValue = $('<input type="text" class="input-value" title="font-family" />')
.appendTo(popupElement).after('<br />');
$('<span class="label-title">Size</span>').appendTo(popupElement);
that.fontSizeValue = $('<input type="text" class="input-value" title="font-size" />')
.appendTo(popupElement);
$('<span class="label-title label-line-height">Line height</span>').appendTo(popupElement);
that.lineHeightValue = $('<input type="text" class="input-value" title="line-height" />')
.appendTo(popupElement).after('<br />');
$('<span class="label-title">Weight</span>').appendTo(popupElement);
that.fontWeightValue = $('<select title="font-weight"><option value="lighter">lighter</option><option value="normal">normal</option><option value="bold">bold</option><option value="bolder">bolder</option><option value="inherit">inherit</option></select>')
.appendTo(popupElement).wrap('<span class="dropdown-wrapper" />')
.kendoDropDownList().data("kendoDropDownList");
$('<span class="label-title label-style">Style</span>').appendTo(popupElement);
that.fontStyleValue = $('<select title="font-style"><option value="normal">normal</option><option value="italic">italic</option><option value="oblique">oblique</option><option value="inherit">inherit</option></select>')
.appendTo(popupElement).wrap('<span class="dropdown-wrapper" />')
.kendoDropDownList().data("kendoDropDownList");
$('<span class="label-title">Text shadow</span>').appendTo(popupElement);
that.textShadowXValue = $('<input type="text" class="input-value" title="text-shadow-x" />').appendTo(popupElement);
that.textShadowYValue = $('<input type="text" class="input-value" title="text-shadow-y" />').appendTo(popupElement);
that.textShadowSizeValue = $('<input type="text" class="input-value" title="text-shadow-size" />').appendTo(popupElement);
that.textShadowColorValue = $('<input type="text" class="input-value" title="text-shadow-color" />').appendTo(popupElement);
popupElement.find("[title*=shadow]:not([title=text-shadow-color]),[title*=size],[title*=height]").keydown(proxy(that._keyDown, that));
popupElement.find("[title=text-shadow-color]").keydown(proxy(that._colorKeyDown, that));
popupElement.find("input[type=text]").bind("input", proxy(that._updateConnected, that));
popupElement.find("select").bind("change", proxy(that._updateConnected, that));
},
options: {
name: "FontPicker",
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 () {
var that = this;
var filter = that.options.filter,
target = !filter ? that.element : that.target;
that.css["font-family"] = that.fontFamilyValue.val();
that.css["line-height"] = that.lineHeightValue.val();
that.css["font-size"] = that.fontSizeValue.val();
that.css["font-weight"] = that.fontWeightValue.value();
that.css["font-style"] = that.fontStyleValue.value();
that.css["text-shadow"] = that.textShadowColorValue.val() + " " + that.textShadowXValue.val() + " " + that.textShadowYValue.val() + " " + that.textShadowSizeValue.val();
that.preview.css(that.css);
target.css(that.css).removeClass("k-none");
if (that.styleengine) {
target.attr("data-font", that.styleengine.createHash(JSON.stringify(that.css)));
}
},
_update: function (trigger) {
var that = this, textShadow,
target = !that.options.filter ? that.element : that.target;
if (target) {
that.fontFamilyValue.val(that.css["font-family"]);
that.lineHeightValue.val(that.css["line-height"]);
that.fontSizeValue.val(that.css["font-size"]);
that.fontWeightValue.value(that.css["font-weight"]);
that.fontStyleValue.value(that.css["font-style"]);
textShadow = that.css["text-shadow"].match(/(rgba?\(.*\)|-?[\d\.]+[^\d\.\s]*)\s?/ig) || [ "rgba(0,0,0,0)", "0px", "0px", "0px" ];
that.textShadowXValue.val(textShadow[1]);
that.textShadowYValue.val(textShadow[2]);
that.textShadowSizeValue.val(textShadow[3]);
that.textShadowColorValue.val(textShadow[0]);
that.preview.css(that.css);
if (trigger) {
that.trigger("pick", { color: that.color, target: target });
}
}
},
_keyDown: function (e) {
var target = $(e.target),
title = target.attr("title"),
value = target.val(),
unit = value.match(/[^\d\.]*$/)[0];
if (e.which == 38 || e.which == 40) {
value = parseFloat(value);
target.val((isNaN(value) ? "" : value + (e.which == 38 ? 1 : -1)) + unit);
target.trigger("input");
}
},
_colorKeyDown: function (e) {
var target = $(e.target),
title = target.attr("title"),
value = target.val();
if (e.which == 38 || e.which == 40) {
target.val(tools.color.set(value)[e.which == 38 ? "tint" : "shade"]().get());
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.css = kendo.getComputedStyles(target[0], fontStyles);
that._update();
}
that.popup[open ? "open" : "close"]();
}
});
ui.plugin(FontPicker);
})(jQuery);