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Diffstat (limited to 'website/logi/iepngfix_tilebg.js')
| -rwxr-xr-x | website/logi/iepngfix_tilebg.js | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/website/logi/iepngfix_tilebg.js b/website/logi/iepngfix_tilebg.js deleted file mode 100755 index 48795631..00000000 --- a/website/logi/iepngfix_tilebg.js +++ /dev/null @@ -1,178 +0,0 @@ -// IE5.5+ PNG Alpha Fix v2.0 Alpha: Background Tiling Support -// (c) 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/ - -var IEPNGFix = window.IEPNGFix || {}; - -IEPNGFix.tileBG = function(elm, pngSrc, ready) { - // Params: A reference to a DOM element, the PNG src file pathname, and a - // hidden "ready-to-run" passed when called back after image preloading. - - var data; - try { - data = this.data[elm.uniqueID], - elmW = Math.max(elm.clientWidth, elm.scrollWidth), - elmH = Math.max(elm.clientHeight, elm.scrollHeight), - bgX = elm.currentStyle.backgroundPositionX, - bgY = elm.currentStyle.backgroundPositionY, - bgR = elm.currentStyle.backgroundRepeat; - } catch ( e ) { - return; - } - - // Cache of DIVs created per element, and image preloader/data. - if (!data.tiles) { - data.tiles = { - elm: elm, - src: '', - cache: [], - img: new Image(), - old: {} - }; - } - var tiles = data.tiles, - pngW = tiles.img.width, - pngH = tiles.img.height; - - if (pngSrc) { - if (!ready && pngSrc != tiles.src) { - // New image? Preload it with a callback to detect dimensions. - tiles.img.onload = function() { - this.onload = null; - IEPNGFix.tileBG(elm, pngSrc, 1); - }; - return tiles.img.src = pngSrc; - } - } else { - // No image? - if (tiles.src) ready = 1; - pngW = pngH = 0; - } - tiles.src = pngSrc; - - if (!ready && elmW == tiles.old.w && elmH == tiles.old.h && - bgX == tiles.old.x && bgY == tiles.old.y && bgR == tiles.old.r) { - return; - } - - // Convert English and percentage positions to pixels. - var pos = { - top: '0%', - left: '0%', - center: '50%', - bottom: '100%', - right: '100%' - }, - x, - y, - pc; - x = pos[bgX] || bgX; - y = pos[bgY] || bgY; - if (pc = x.match(/(\d+)%/)) { - x = Math.round((elmW - pngW) * (parseInt(pc[1]) / 100)); - } - if (pc = y.match(/(\d+)%/)) { - y = Math.round((elmH - pngH) * (parseInt(pc[1]) / 100)); - } - x = parseInt(x); - y = parseInt(y); - - // Handle backgroundRepeat. - var repeatX = { 'repeat': 1, 'repeat-x': 1 }[bgR], - repeatY = { 'repeat': 1, 'repeat-y': 1 }[bgR]; - if (repeatX) { - x %= pngW; - if (x > 0) x -= pngW; - } - if (repeatY) { - y %= pngH; - if (y > 0) y -= pngH; - } - - // Go! - this.hook.enabled = 0; - if (!({ relative: 1, absolute: 1 }[elm.currentStyle.position])) { - elm.style.position = 'relative'; - } - var count = 0, - xPos, - maxX = repeatX ? elmW : x + 0.1, - yPos, - maxY = repeatY ? elmH : y + 0.1, - d, - s, - isNew; - if (pngW && pngH) { - for (xPos = x; xPos < maxX; xPos += pngW) { - for (yPos = y; yPos < maxY; yPos += pngH) { - isNew = 0; - if (!tiles.cache[count]) { - tiles.cache[count] = document.createElement('div'); - isNew = 1; - } - var clipR = (xPos + pngW > elmW ? elmW - xPos : pngW), - clipB = (yPos + pngH > elmH ? elmH - yPos : pngH); - d = tiles.cache[count]; - s = d.style; - s.behavior = 'none'; - s.left = xPos + 'px'; - s.top = yPos + 'px'; - s.width = clipR + 'px'; - s.height = clipB + 'px'; - s.clip = 'rect(' + - (yPos < 0 ? 0 - yPos : 0) + 'px,' + - clipR + 'px,' + - clipB + 'px,' + - (xPos < 0 ? 0 - xPos : 0) + 'px)'; - s.display = 'block'; - if (isNew) { - s.position = 'absolute'; - s.zIndex = -999; - if (elm.firstChild) { - elm.insertBefore(d, elm.firstChild); - } else { - elm.appendChild(d); - } - } - this.fix(d, pngSrc, 0); - count++; - } - } - } - while (count < tiles.cache.length) { - this.fix(tiles.cache[count], '', 0); - tiles.cache[count++].style.display = 'none'; - } - - this.hook.enabled = 1; - - // Cache so updates are infrequent. - tiles.old = { - w: elmW, - h: elmH, - x: bgX, - y: bgY, - r: bgR - }; -}; - - -IEPNGFix.update = function() { - // Update all PNG backgrounds. - for (var i in IEPNGFix.data) { - var t = IEPNGFix.data[i].tiles; - if (t && t.elm && t.src) { - IEPNGFix.tileBG(t.elm, t.src); - } - } -}; -IEPNGFix.update.timer = 0; - -if (window.attachEvent && !window.opera) { - window.attachEvent('onresize', function() { - clearTimeout(IEPNGFix.update.timer); - IEPNGFix.update.timer = setTimeout(IEPNGFix.update, 100); - }); -} |