From e154e69b410407f63a32b641b98e0f69f3b53b0c Mon Sep 17 00:00:00 2001
From: bnu <bnufactory@gmail.com>
Date: Wed, 10 Sep 2008 21:47:12 +0000
Subject: [PATCH] =?UTF-8?q?#17173107=20=20=20*=20png=20fix.=20htc=ED=8C=8C?=
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git-svn-id: http://xe-core.googlecode.com/svn/sandbox@4499 201d5d3c-b55e-5fd7-737f-ddc643e51545
---
 common/js/iePngFix.htc | 227 +++++++++++++++++++++++++++++++----------
 1 file changed, 175 insertions(+), 52 deletions(-)

diff --git a/common/js/iePngFix.htc b/common/js/iePngFix.htc
index 63905672e..ebf0d949d 100644
--- a/common/js/iePngFix.htc
+++ b/common/js/iePngFix.htc
@@ -1,64 +1,187 @@
 <public:component>
-<public:attach event="onpropertychange" onevent="doFix()" />
-
 <script type="text/javascript">
-// IE5.5+ PNG Alpha Fix v1.0RC4
-// (c) 2004-2005 Angus Turnbull http://www.twinhelix.com
-// This is licensed under the CC-GNU LGPL, version 2.1 or later.
+
+// IE5.5+ PNG Alpha Fix v2.0 Alpha
+// (c) 2004-2008 Angus Turnbull http://www.twinhelix.com
+
+// This is licensed under the GNU LGPL, version 2.1 or later.
 // For details, see: http://creativecommons.org/licenses/LGPL/2.1/
-// This must be a path to a blank image. That's all the configuration you need.
 
-if (typeof blankImg == 'undefined') var blankImg = request_uri+'common/tpl/images/blank.gif'; // 1x1px 짜리 투명 이미지(blank.gif)의 경로를 변경.
-var f = 'DXImageTransform.Microsoft.AlphaImageLoader';
+var IEPNGFix = window.IEPNGFix || {};
+IEPNGFix.data = IEPNGFix.data || {};
 
-function filt(s, m)
-{
- if (filters[f])
- {
-  filters[f].enabled = s ? true : false;
-  if (s) with (filters[f]) { src = s; sizingMethod = m }
- }
- else if (s) style.filter = 'progid:'+f+'(src="'+s+'",sizingMethod="'+m+'")';
-}
 
-function doFix()
-{
- // Assume IE7 is OK.
- if (!/MSIE (5\.5|6\.)/.test(navigator.userAgent) ||
-  (event && !/(background|src)/.test(event.propertyName))) return;
+// This must be a path to a blank image, relative to the HTML document(s).
+// In production use I suggest '/images/blank.gif' or similar. That's all!
+IEPNGFix.blankImg = request_uri+'common/tpl/images/blank.gif';
 
- var bgImg = currentStyle.backgroundImage || style.backgroundImage;
 
- if (tagName == 'IMG')
- {
-  if ((/\.png$/i).test(src))
-  {
-   if (currentStyle.width == 'auto' && currentStyle.height == 'auto')
-    style.width = offsetWidth + 'px';
-   filt(src, 'image'); 
-// 'scale' 을 'image' 으로 변경하면 padding 적용시 나타나는 이미지 크기의 변화(잘못된 렌더링)를 방지할 수 있다. 하지만 border 표현에 문제가 생긴다.
-   src = blankImg;
-  }
-  else if (src.indexOf(blankImg) < 0) filt();
- }
- else if (bgImg && bgImg != 'none')
- {
-  if (bgImg.match(/^url[("']+(.*\.png)[)"']+$/i))
-  {
-   var s = RegExp.$1;
-   if (currentStyle.width == 'auto' && currentStyle.height == 'auto')
-    style.width = offsetWidth + 'px';
-   style.backgroundImage = 'none';
-   filt(s, 'crop');
-   // IE link fix.
-   for (var n = 0; n < childNodes.length; n++)
-    if (childNodes[n].style) childNodes[n].style.position = 'relative';
-  }
-  else filt();
- }
-}
+IEPNGFix.fix = function(elm, src, t) {
+	// Applies an image 'src' to an element 'elm' using the DirectX filter.
+	// If 'src' is null, filter is disabled.
+	// Disables the 'hook' to prevent infinite recursion on setting BG/src.
+	// 't' = type, where background tile = 0, background = 1, IMG SRC = 2.
 
-doFix();
+	var h = this.hook.enabled;
+	this.hook.enabled = 0;
+
+	var f = 'DXImageTransform.Microsoft.AlphaImageLoader';
+		src = (src || '').replace(/\(/g, '%28').replace(/\)/g, '%29');
+
+	if (
+		src && !(/IMG|INPUT/.test(elm.nodeName) && (t != 2)) &&
+		elm.currentStyle.width == 'auto' && elm.currentStyle.height == 'auto'
+	) {
+		elm.style.width = elm.offsetWidth + 'px';
+		elm.style.height = elm.clientHeight + 'px';
+		if (elm.currentStyle.display == 'inline') {
+			elm.style.display = 'inline-block';
+		}
+	}
+
+	if (t == 1) {
+		elm.style.backgroundImage = 'url("' + this.blankImg + '")';
+	}
+	if (t == 2) {
+		elm.src = this.blankImg;
+	}
+
+	if (elm.filters[f]) {
+		elm.filters[f].enabled = src ? true : false;
+		if (src) {
+			elm.filters[f].src = src;
+		}
+	} else if (src) {
+		elm.style.filter = 'progid:' + f + '(src="' + src +
+			'",sizingMethod="' + (t == 2 ? 'scale' : 'crop') + '")';
+	}
+
+	this.hook.enabled = h;
+};
+
+
+IEPNGFix.process = function(elm, init) {
+	// Checks the onpropertychange event (on first 'init' run, a fake event)
+	// and calls the filter-applying-functions.
+
+	if (
+		!/MSIE (5\.5|6)/.test(navigator.userAgent) ||
+		typeof elm.filters == 'unknown'
+	) {
+		return;
+	}
+	if (!this.data[elm.uniqueID]) {
+		this.data[elm.uniqueID] = {
+			className: ''
+		};
+	}
+	var data = this.data[elm.uniqueID],
+		evt = init ? { propertyName: 'src,backgroundImage' } : event,
+		isSrc = /src/.test(evt.propertyName),
+		isBg = /backgroundImage/.test(evt.propertyName),
+		isPos = /width|height|background(Pos|Rep)/.test(evt.propertyName),
+		isClass = !init && ((elm.className != data.className) &&
+			(elm.className || data.className));
+	if (!(isSrc || isBg || isPos || isClass)) {
+		return;
+	}
+	data.className = elm.className;
+	var blank = this.blankImg.match(/([^\/]+)$/)[1],
+		eS = elm.style,
+		eCS = elm.currentStyle;
+
+	// Required for Whatever:hover - erase set BG if className changes.
+	if (
+		isClass && (eS.backgroundImage.indexOf('url(') == -1 ||
+		eS.backgroundImage.indexOf(blank) > -1)
+	) {
+		return setTimeout(function() {
+			eS.backgroundImage = '';
+		}, 0);
+	}
+
+	// Foregrounds.
+	if (isSrc && elm.src &&  { IMG: 1, INPUT: 1 }[elm.nodeName]) {
+		if ((/\.png/i).test(elm.src)) {
+			this.fix(elm, elm.src, 2);
+		} else if (elm.src.indexOf(blank) == -1) {
+			this.fix(elm, '');
+		}
+	}
+
+	// Backgrounds.
+	var bgSrc = eCS.backgroundImage || eS.backgroundImage;
+	if ((bgSrc + elm.src).indexOf(blank) == -1) {
+		var bgPNG = bgSrc.match(/url[("']+(.*\.png[^\)"']*)[\)"']/i);
+		if (bgPNG) {
+			if (this.tileBG && !{ IMG: 1, INPUT: 1 }[elm.nodeName]) {
+				this.tileBG(elm, bgPNG[1]);
+				this.fix(elm, '', 1);
+			} else {
+				if (data.tiles && data.tiles.src) {
+					this.tileBG(elm, '');
+				}
+				this.fix(elm, bgPNG[1], 1);
+				this.childFix(elm);
+			}
+		} else {
+			if (data.tiles && data.tiles.src) {
+				this.tileBG(elm, '');
+			}
+			this.fix(elm, '');
+		}
+	} else if ((isPos || isClass) && data.tiles && data.tiles.src) {
+		this.tileBG(elm, data.tiles.src);
+	}
+
+	if (init) {
+		this.hook.enabled = 1;
+		elm.attachEvent('onpropertychange', this.hook);
+	}
+};
+
+
+IEPNGFix.childFix = function(elm) {
+	// "hasLayout" fix for unclickable children inside PNG backgrounds.
+	var tags = [
+			'a',
+			'input',
+			'select',
+			'textarea',
+			'button',
+			'iframe',
+			'object'
+		],
+		t = tags.length,
+		tFix = [];
+	while (t--) {
+		var pFix = elm.all.tags(tags[t]),
+			e = pFix.length;
+		while (e--) {
+			tFix.push(pFix[e]);
+		}
+	}
+	t = tFix.length;
+	if (t && (/relative|absolute/i).test(elm.currentStyle.position)) {
+		alert('IEPNGFix: Unclickable children of element:' +
+			'\n\n<' + elm.nodeName + (elm.id && ' id=' + elm.id) + '>');
+	}
+	while (t--) {
+		if (!(/relative|absolute/i).test(tFix[t].currentStyle.position)) {
+			tFix[t].style.position = 'relative';
+		}
+	}
+};
+
+
+IEPNGFix.hook = function() {
+	if (IEPNGFix.hook.enabled) {
+		IEPNGFix.process(element, 0);
+	}
+};
+
+
+IEPNGFix.process(element, 1);
 
 </script>
 </public:component>