From d52b3d800897511fcf75958ec4f9426c441ca753 Mon Sep 17 00:00:00 2001
From: Justin Sternberg <me@jtsternberg.com>
Date: Wed, 22 Nov 2017 21:34:58 -0500
Subject: [PATCH 1/3] Add a custom flag to prevent re-init of the alpha
 colorpicker. Fixes #13

If this script is enqueued multiple times (e.g. by different WP plugins), then it will cause issues, documented in #13.
By setting and checking a flag, we can prevent multiple initiations.
---
 src/wp-color-picker-alpha.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/wp-color-picker-alpha.js b/src/wp-color-picker-alpha.js
index e878d01..ba6b2a1 100644
--- a/src/wp-color-picker-alpha.js
+++ b/src/wp-color-picker-alpha.js
@@ -9,6 +9,11 @@
  * Licensed under the GPLv2 license.
  */
 ( function( $ ) {
+	// Prevent double-init.
+	if ( $.wp.wpColorPicker.prototype._hasAlpha ) {
+		return;
+	}
+
 		// Variable for some backgrounds ( grid )
 	var image   = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAAHnlligAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAHJJREFUeNpi+P///4EDBxiAGMgCCCAGFB5AADGCRBgYDh48CCRZIJS9vT2QBAggFBkmBiSAogxFBiCAoHogAKIKAlBUYTELAiAmEtABEECk20G6BOmuIl0CIMBQ/IEMkO0myiSSraaaBhZcbkUOs0HuBwDplz5uFJ3Z4gAAAABJRU5ErkJggg==',
 		// html stuff for wpColorPicker copy of the original color-picker.js
@@ -48,6 +53,7 @@
 	 * Overwrite wpColorPicker
 	 */
 	$.widget( 'wp.wpColorPicker', $.wp.wpColorPicker, {
+		_hasAlpha: true,
 		/**
 		 * @summary Creates the color picker.
 		 *
@@ -487,4 +493,4 @@
 // Auto Call plugin is class is color-picker
 jQuery( document ).ready( function( $ ) {
 	$( '.color-picker' ).wpColorPicker();
-} );
\ No newline at end of file
+} );

From f08f4bc1538bfb48b7bb17b3183fc21379233754 Mon Sep 17 00:00:00 2001
From: Justin Sternberg <me@jtsternberg.com>
Date: Wed, 22 Nov 2017 21:37:45 -0500
Subject: [PATCH 2/3] Bump version.

---
 src/wp-color-picker-alpha.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-color-picker-alpha.js b/src/wp-color-picker-alpha.js
index ba6b2a1..b4baeb0 100644
--- a/src/wp-color-picker-alpha.js
+++ b/src/wp-color-picker-alpha.js
@@ -4,7 +4,7 @@
  * Overwrite Automattic Iris for enabled Alpha Channel in wpColorPicker
  * Only run in input and is defined data alpha in true
  *
- * Version: 2.1.2
+ * Version: 2.1.3
  * https://github.com/kallookoo/wp-color-picker-alpha
  * Licensed under the GPLv2 license.
  */

From 30b4330a37796ad375a0e80c64f294b1ff1bd7fb Mon Sep 17 00:00:00 2001
From: Justin Sternberg <me@jtsternberg.com>
Date: Wed, 22 Nov 2017 21:57:11 -0500
Subject: [PATCH 3/3] Update minified for #15

---
 dist/wp-color-picker-alpha.min.js | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/dist/wp-color-picker-alpha.min.js b/dist/wp-color-picker-alpha.min.js
index c297eaf..70ccf36 100644
--- a/dist/wp-color-picker-alpha.min.js
+++ b/dist/wp-color-picker-alpha.min.js
@@ -4,10 +4,8 @@
  * Overwrite Automattic Iris for enabled Alpha Channel in wpColorPicker
  * Only run in input and is defined data alpha in true
  *
- * Version: 2.1.2
+ * Version: 2.1.3
  * https://github.com/kallookoo/wp-color-picker-alpha
  * Licensed under the GPLv2 license.
  */
-!function(t){var o="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAAHnlligAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAHJJREFUeNpi+P///4EDBxiAGMgCCCAGFB5AADGCRBgYDh48CCRZIJS9vT2QBAggFBkmBiSAogxFBiCAoHogAKIKAlBUYTELAiAmEtABEECk20G6BOmuIl0CIMBQ/IEMkO0myiSSraaaBhZcbkUOs0HuBwDplz5uFJ3Z4gAAAABJRU5ErkJggg==",r='<div class="wp-picker-holder" />',e='<div class="wp-picker-container" />',i='<input type="button" class="button button-small" />',a=void 0!==wpColorPickerL10n.current;if(a)n='<a tabindex="0" class="wp-color-result" />';else var n='<button type="button" class="button wp-color-result" aria-expanded="false"><span class="wp-color-result-text"></span></button>',l="<label></label>",s='<span class="screen-reader-text"></span>';Color.fn.toString=function(){if(this._alpha<1)return this.toCSS("rgba",this._alpha).replace(/\s+/g,"");var t=parseInt(this._color,10).toString(16);return this.error?"":(t.length<6&&(t=("00000"+t).substr(-6)),"#"+t)},t.widget("wp.wpColorPicker",t.wp.wpColorPicker,{_create:function(){if(t.support.iris){var p=this,c=p.element;if(t.extend(p.options,c.data()),"hue"===p.options.type)return p._createHueOnly();p.close=t.proxy(p.close,p),p.initialValue=c.val(),c.addClass("wp-color-picker"),a?(c.hide().wrap(e),p.wrap=c.parent(),p.toggler=t(n).insertBefore(c).css({backgroundColor:p.initialValue}).attr("title",wpColorPickerL10n.pick).attr("data-current",wpColorPickerL10n.current),p.pickerContainer=t(r).insertAfter(c),p.button=t(i).addClass("hidden")):(c.parent("label").length||(c.wrap(l),p.wrappingLabelText=t(s).insertBefore(c).text(wpColorPickerL10n.defaultLabel)),p.wrappingLabel=c.parent(),p.wrappingLabel.wrap(e),p.wrap=p.wrappingLabel.parent(),p.toggler=t(n).insertBefore(p.wrappingLabel).css({backgroundColor:p.initialValue}),p.toggler.find(".wp-color-result-text").text(wpColorPickerL10n.pick),p.pickerContainer=t(r).insertAfter(p.wrappingLabel),p.button=t(i)),p.options.defaultColor?(p.button.addClass("wp-picker-default").val(wpColorPickerL10n.defaultString),a||p.button.attr("aria-label",wpColorPickerL10n.defaultAriaLabel)):(p.button.addClass("wp-picker-clear").val(wpColorPickerL10n.clear),a||p.button.attr("aria-label",wpColorPickerL10n.clearAriaLabel)),a?c.wrap('<span class="wp-picker-input-wrap" />').after(p.button):(p.wrappingLabel.wrap('<span class="wp-picker-input-wrap hidden" />').after(p.button),p.inputWrapper=c.closest(".wp-picker-input-wrap")),c.iris({target:p.pickerContainer,hide:p.options.hide,width:p.options.width,mode:p.options.mode,palettes:p.options.palettes,change:function(r,e){p.options.alpha?(p.toggler.css({"background-image":"url("+o+")"}),a?p.toggler.html('<span class="color-alpha" />'):(p.toggler.css({position:"relative"}),0==p.toggler.find("span.color-alpha").length&&p.toggler.append('<span class="color-alpha" />')),p.toggler.find("span.color-alpha").css({width:"30px",height:"24px",position:"absolute",top:0,left:0,"border-top-left-radius":"2px","border-bottom-left-radius":"2px",background:e.color.toString()})):p.toggler.css({backgroundColor:e.color.toString()}),t.isFunction(p.options.change)&&p.options.change.call(this,r,e)}}),c.val(p.initialValue),p._addListeners(),p.options.hide||p.toggler.click()}},_addListeners:function(){var o=this;o.wrap.on("click.wpcolorpicker",function(t){t.stopPropagation()}),o.toggler.click(function(){o.toggler.hasClass("wp-picker-open")?o.close():o.open()}),o.element.on("change",function(r){(""===t(this).val()||o.element.hasClass("iris-error"))&&(o.options.alpha?(a&&o.toggler.removeAttr("style"),o.toggler.find("span.color-alpha").css("backgroundColor","")):o.toggler.css("backgroundColor",""),t.isFunction(o.options.clear)&&o.options.clear.call(this,r))}),o.button.on("click",function(r){t(this).hasClass("wp-picker-clear")?(o.element.val(""),o.options.alpha?(a&&o.toggler.removeAttr("style"),o.toggler.find("span.color-alpha").css("backgroundColor","")):o.toggler.css("backgroundColor",""),t.isFunction(o.options.clear)&&o.options.clear.call(this,r)):t(this).hasClass("wp-picker-default")&&o.element.val(o.options.defaultColor).change()})}}),t.widget("a8c.iris",t.a8c.iris,{_create:function(){if(this._super(),this.options.alpha=this.element.data("alpha")||!1,this.element.is(":input")||(this.options.alpha=!1),void 0!==this.options.alpha&&this.options.alpha){var o=this,r=o.element,e=t('<div class="iris-strip iris-slider iris-alpha-slider"><div class="iris-slider-offset iris-slider-offset-alpha"></div></div>').appendTo(o.picker.find(".iris-picker-inner")),i={aContainer:e,aSlider:e.find(".iris-slider-offset-alpha")};void 0!==r.data("custom-width")?o.options.customWidth=parseInt(r.data("custom-width"))||0:o.options.customWidth=100,o.options.defaultWidth=r.width(),(o._color._alpha<1||-1!=o._color.toString().indexOf("rgb"))&&r.width(parseInt(o.options.defaultWidth+o.options.customWidth)),t.each(i,function(t,r){o.controls[t]=r}),o.controls.square.css({"margin-right":"0"});var a=o.picker.width()-o.controls.square.width()-20,n=a/6,l=a/2-n;t.each(["aContainer","strip"],function(t,r){o.controls[r].width(l).css({"margin-left":n+"px"})}),o._initControls(),o._change()}},_initControls:function(){if(this._super(),this.options.alpha){var t=this;t.controls.aSlider.slider({orientation:"vertical",min:0,max:100,step:1,value:parseInt(100*t._color._alpha),slide:function(o,r){t._color._alpha=parseFloat(r.value/100),t._change.apply(t,arguments)}})}},_change:function(){this._super();var t=this,r=t.element;if(this.options.alpha){var e=t.controls,i=parseInt(100*t._color._alpha),a=t._color.toRgb(),n=["rgb("+a.r+","+a.g+","+a.b+") 0%","rgba("+a.r+","+a.g+","+a.b+", 0) 100%"],l=t.options.defaultWidth,s=t.options.customWidth,p=t.picker.closest(".wp-picker-container").find(".wp-color-result");e.aContainer.css({background:"linear-gradient(to bottom, "+n.join(", ")+"), url("+o+")"}),p.hasClass("wp-picker-open")&&(e.aSlider.slider("value",i),t._color._alpha<1?(e.strip.attr("style",e.strip.attr("style").replace(/rgba\(([0-9]+,)(\s+)?([0-9]+,)(\s+)?([0-9]+)(,(\s+)?[0-9\.]+)\)/g,"rgb($1$3$5)")),r.width(parseInt(l+s))):r.width(l))}(r.data("reset-alpha")||!1)&&t.picker.find(".iris-palette-container").on("click.palette",".iris-palette",function(){t._color._alpha=1,t.active="external",t._change()})},_addInputListeners:function(t){var o=this,r=function(r){var e=new Color(t.val()),i=t.val();t.removeClass("iris-error"),e.error?""!==i&&t.addClass("iris-error"):e.toString()!==o._color.toString()&&("keyup"===r.type&&i.match(/^[0-9a-fA-F]{3}$/)||o._setOption("color",e.toString()))};t.on("change",r).on("keyup",o._debounce(r,100)),o.options.hide&&t.on("focus",function(){o.show()})}})}(jQuery),
-// Auto call with colo-picker class
-jQuery(document).ready(function(t){t(".color-picker").wpColorPicker()});
\ No newline at end of file
+!function(a){if(!a.wp.wpColorPicker.prototype._hasAlpha){var b="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAAHnlligAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAHJJREFUeNpi+P///4EDBxiAGMgCCCAGFB5AADGCRBgYDh48CCRZIJS9vT2QBAggFBkmBiSAogxFBiCAoHogAKIKAlBUYTELAiAmEtABEECk20G6BOmuIl0CIMBQ/IEMkO0myiSSraaaBhZcbkUOs0HuBwDplz5uFJ3Z4gAAAABJRU5ErkJggg==",c='<div class="wp-picker-holder" />',d='<div class="wp-picker-container" />',e='<input type="button" class="button button-small" />',f=void 0!==wpColorPickerL10n.current;if(f)var g='<a tabindex="0" class="wp-color-result" />';else var g='<button type="button" class="button wp-color-result" aria-expanded="false"><span class="wp-color-result-text"></span></button>',h="<label></label>",i='<span class="screen-reader-text"></span>';Color.fn.toString=function(){if(this._alpha<1)return this.toCSS("rgba",this._alpha).replace(/\s+/g,"");var a=parseInt(this._color,10).toString(16);return this.error?"":(a.length<6&&(a=("00000"+a).substr(-6)),"#"+a)},a.widget("wp.wpColorPicker",a.wp.wpColorPicker,{_hasAlpha:!0,_create:function(){if(a.support.iris){var j=this,k=j.element;if(a.extend(j.options,k.data()),"hue"===j.options.type)return j._createHueOnly();j.close=a.proxy(j.close,j),j.initialValue=k.val(),k.addClass("wp-color-picker"),f?(k.hide().wrap(d),j.wrap=k.parent(),j.toggler=a(g).insertBefore(k).css({backgroundColor:j.initialValue}).attr("title",wpColorPickerL10n.pick).attr("data-current",wpColorPickerL10n.current),j.pickerContainer=a(c).insertAfter(k),j.button=a(e).addClass("hidden")):(k.parent("label").length||(k.wrap(h),j.wrappingLabelText=a(i).insertBefore(k).text(wpColorPickerL10n.defaultLabel)),j.wrappingLabel=k.parent(),j.wrappingLabel.wrap(d),j.wrap=j.wrappingLabel.parent(),j.toggler=a(g).insertBefore(j.wrappingLabel).css({backgroundColor:j.initialValue}),j.toggler.find(".wp-color-result-text").text(wpColorPickerL10n.pick),j.pickerContainer=a(c).insertAfter(j.wrappingLabel),j.button=a(e)),j.options.defaultColor?(j.button.addClass("wp-picker-default").val(wpColorPickerL10n.defaultString),f||j.button.attr("aria-label",wpColorPickerL10n.defaultAriaLabel)):(j.button.addClass("wp-picker-clear").val(wpColorPickerL10n.clear),f||j.button.attr("aria-label",wpColorPickerL10n.clearAriaLabel)),f?k.wrap('<span class="wp-picker-input-wrap" />').after(j.button):(j.wrappingLabel.wrap('<span class="wp-picker-input-wrap hidden" />').after(j.button),j.inputWrapper=k.closest(".wp-picker-input-wrap")),k.iris({target:j.pickerContainer,hide:j.options.hide,width:j.options.width,mode:j.options.mode,palettes:j.options.palettes,change:function(c,d){j.options.alpha?(j.toggler.css({"background-image":"url("+b+")"}),f?j.toggler.html('<span class="color-alpha" />'):(j.toggler.css({position:"relative"}),0==j.toggler.find("span.color-alpha").length&&j.toggler.append('<span class="color-alpha" />')),j.toggler.find("span.color-alpha").css({width:"30px",height:"24px",position:"absolute",top:0,left:0,"border-top-left-radius":"2px","border-bottom-left-radius":"2px",background:d.color.toString()})):j.toggler.css({backgroundColor:d.color.toString()}),a.isFunction(j.options.change)&&j.options.change.call(this,c,d)}}),k.val(j.initialValue),j._addListeners(),j.options.hide||j.toggler.click()}},_addListeners:function(){var b=this;b.wrap.on("click.wpcolorpicker",function(a){a.stopPropagation()}),b.toggler.click(function(){b.toggler.hasClass("wp-picker-open")?b.close():b.open()}),b.element.on("change",function(c){(""===a(this).val()||b.element.hasClass("iris-error"))&&(b.options.alpha?(f&&b.toggler.removeAttr("style"),b.toggler.find("span.color-alpha").css("backgroundColor","")):b.toggler.css("backgroundColor",""),a.isFunction(b.options.clear)&&b.options.clear.call(this,c))}),b.button.on("click",function(c){a(this).hasClass("wp-picker-clear")?(b.element.val(""),b.options.alpha?(f&&b.toggler.removeAttr("style"),b.toggler.find("span.color-alpha").css("backgroundColor","")):b.toggler.css("backgroundColor",""),a.isFunction(b.options.clear)&&b.options.clear.call(this,c)):a(this).hasClass("wp-picker-default")&&b.element.val(b.options.defaultColor).change()})}}),a.widget("a8c.iris",a.a8c.iris,{_create:function(){if(this._super(),this.options.alpha=this.element.data("alpha")||!1,this.element.is(":input")||(this.options.alpha=!1),"undefined"!=typeof this.options.alpha&&this.options.alpha){var b=this,c=b.element,d='<div class="iris-strip iris-slider iris-alpha-slider"><div class="iris-slider-offset iris-slider-offset-alpha"></div></div>',e=a(d).appendTo(b.picker.find(".iris-picker-inner")),f=e.find(".iris-slider-offset-alpha"),g={aContainer:e,aSlider:f};"undefined"!=typeof c.data("custom-width")?b.options.customWidth=parseInt(c.data("custom-width"))||0:b.options.customWidth=100,b.options.defaultWidth=c.width(),(b._color._alpha<1||-1!=b._color.toString().indexOf("rgb"))&&c.width(parseInt(b.options.defaultWidth+b.options.customWidth)),a.each(g,function(a,c){b.controls[a]=c}),b.controls.square.css({"margin-right":"0"});var h=b.picker.width()-b.controls.square.width()-20,i=h/6,j=h/2-i;a.each(["aContainer","strip"],function(a,c){b.controls[c].width(j).css({"margin-left":i+"px"})}),b._initControls(),b._change()}},_initControls:function(){if(this._super(),this.options.alpha){var a=this,b=a.controls;b.aSlider.slider({orientation:"vertical",min:0,max:100,step:1,value:parseInt(100*a._color._alpha),slide:function(b,c){a._color._alpha=parseFloat(c.value/100),a._change.apply(a,arguments)}})}},_change:function(){this._super();var a=this,c=a.element;if(this.options.alpha){var d=a.controls,e=parseInt(100*a._color._alpha),f=a._color.toRgb(),g=["rgb("+f.r+","+f.g+","+f.b+") 0%","rgba("+f.r+","+f.g+","+f.b+", 0) 100%"],h=a.options.defaultWidth,i=a.options.customWidth,j=a.picker.closest(".wp-picker-container").find(".wp-color-result");d.aContainer.css({background:"linear-gradient(to bottom, "+g.join(", ")+"), url("+b+")"}),j.hasClass("wp-picker-open")&&(d.aSlider.slider("value",e),a._color._alpha<1?(d.strip.attr("style",d.strip.attr("style").replace(/rgba\(([0-9]+,)(\s+)?([0-9]+,)(\s+)?([0-9]+)(,(\s+)?[0-9\.]+)\)/g,"rgb($1$3$5)")),c.width(parseInt(h+i))):c.width(h))}var k=c.data("reset-alpha")||!1;k&&a.picker.find(".iris-palette-container").on("click.palette",".iris-palette",function(){a._color._alpha=1,a.active="external",a._change()})},_addInputListeners:function(a){var b=this,c=100,d=function(c){var d=new Color(a.val()),e=a.val();a.removeClass("iris-error"),d.error?""!==e&&a.addClass("iris-error"):d.toString()!==b._color.toString()&&("keyup"===c.type&&e.match(/^[0-9a-fA-F]{3}$/)||b._setOption("color",d.toString()))};a.on("change",d).on("keyup",b._debounce(d,c)),b.options.hide&&a.on("focus",function(){b.show()})}})}}(jQuery),jQuery(document).ready(function(a){a(".color-picker").wpColorPicker()});