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Rewrite browsersupport JS module to only expose functions. Added detection for Selectors and XPath support. Updated svgcanvas.js to create its getElem() function based on browsersupport.

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git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1909 eee81c28-f429-11dd-99c0-75d572ba1ddd
This commit is contained in:
Jeff Schiller
2011-01-13 07:38:27 +00:00
parent e557f346e9
commit 282f81f27a
3 changed files with 62 additions and 44 deletions
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63
editor/browsersupport.js
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@@ -29,12 +29,16 @@ var isOpera_ = !!window.opera;
var isWebkit_ = userAgent.indexOf("AppleWebKit") >= 0;
var isGecko_ = userAgent.indexOf('Gecko/') >= 0;
svgedit.browsersupport.isOpera = function() { return isOpera_; }
svgedit.browsersupport.isWebkit = function() { return isWebkit_; }
svgedit.browsersupport.isGecko = function() { return isGecko_; }
var supportsSelectors_ = (function() {
return !!svg.querySelector;
})();
var supportsXpath_ = (function() {
return !!document.evaluate;
})();
// segList functions (for FF1.5 and 2.0)
function supportPathReplaceItem() {
var supportsPathReplaceItem_ = (function() {
var path = document.createElementNS(svgns, 'path');
path.setAttribute('d','M0,0 10,10');
var seglist = path.pathSegList;
@@ -44,9 +48,9 @@ function supportPathReplaceItem() {
return true;
} catch(err) {}
return false;
}
})();
function supportPathInsertItemBefore() {
var supportsPathInsertItemBefore_ = (function() {
var path = document.createElementNS(svgns,'path');
path.setAttribute('d','M0,0 10,10');
var seglist = path.pathSegList;
@@ -56,10 +60,10 @@ function supportPathInsertItemBefore() {
return true;
} catch(err) {}
return false;
}
})();
// text character positioning
function supportTextCharPos() {
var supportsTextCharPos_ = (function() {
var retValue = false;
var svgcontent = document.createElementNS(svgns, 'svg');
document.documentElement.appendChild(svgcontent);
@@ -72,14 +76,14 @@ function supportTextCharPos() {
} catch(err) {}
document.documentElement.removeChild(svgcontent);
return retValue;
}
})();
function supportEditableText() {
var supportsEditableText_ = (function() {
// TODO: Find better way to check support for this
return svgedit.browsersupport.isOpera();
}
return isOpera_;
})();
function supportGoodDecimals() {
var supportsGoodDecimals_ = (function() {
// Correct decimals on clone attributes (Opera < 10.5/win/non-en)
var rect = document.createElementNS(svgns, 'rect');
rect.setAttribute('x',.1);
@@ -90,29 +94,38 @@ function supportGoodDecimals() {
Please upgrade to the <a href='http://opera.com'>latest version</a> in which the problems have been fixed.");
}
return retValue;
}
})();
function supportNonScalingStroke() {
var supportsNonScalingStroke_ = (function() {
var rect = document.createElementNS(svgns, 'rect');
rect.setAttribute('style','vector-effect:non-scaling-stroke');
return rect.style.vectorEffect === 'non-scaling-stroke';
}
})();
function supportNativeSVGTransformLists() {
var supportsNativeSVGTransformLists_ = (function() {
var rect = document.createElementNS(svgns, 'rect');
var rxform = rect.transform.baseVal;
var t1 = svg.createSVGTransform();
rxform.appendItem(t1);
return rxform.getItem(0) == t1;
}
})();
svgedit.browsersupport.pathReplaceItem = supportPathReplaceItem();
svgedit.browsersupport.pathInsertItemBefore = supportPathInsertItemBefore();
svgedit.browsersupport.textCharPos = supportTextCharPos();
svgedit.browsersupport.editableText = supportEditableText();
svgedit.browsersupport.goodDecimals = supportGoodDecimals();
svgedit.browsersupport.nonScalingStroke = supportNonScalingStroke();
svgedit.browsersupport.nativeTransformLists = supportNativeSVGTransformLists();
// Public API
svgedit.browsersupport.isOpera = function() { return isOpera_; }
svgedit.browsersupport.isWebkit = function() { return isWebkit_; }
svgedit.browsersupport.isGecko = function() { return isGecko_; }
svgedit.browsersupport.supportsSelectors = function() { return supportsSelectors_; }
svgedit.browsersupport.supportsXpath = function() { return supportsXpath_; }
svgedit.browsersupport.supportsPathReplaceItem = function() { return supportsPathReplaceItem_; }
svgedit.browsersupport.supportsPathInsertItemBefore = function() { return supportsPathInsertItemBefore_; }
svgedit.browsersupport.supportsTextCharPos = function() { return supportsTextCharPos_; }
svgedit.browsersupport.supportsEditableText = function() { return supportsEditableText_; }
svgedit.browsersupport.supportsGoodDecimals = function() { return supportsGoodDecimals_; }
svgedit.browsersupport.supportsNonScalingStroke = function() { return supportsNonScalingStroke_; }
svgedit.browsersupport.supportsNativeTransformLists = function() { return supportsNativeSVGTransformLists_; }
})();