forked from zhurui/management
56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
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var env = require("../../core/env");
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// Fix weird bug in some version of IE11 (like 11.0.9600.178**),
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// where exception "unexpected call to method or property access"
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// might be thrown when calling ctx.fill or ctx.stroke after a path
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// whose area size is zero is drawn and ctx.clip() is called and
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// shadowBlur is set. See #4572, #3112, #5777.
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// (e.g.,
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// ctx.moveTo(10, 10);
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// ctx.lineTo(20, 10);
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// ctx.closePath();
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// ctx.clip();
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// ctx.shadowBlur = 10;
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// ...
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// ctx.fill();
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// )
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var shadowTemp = [['shadowBlur', 0], ['shadowColor', '#000'], ['shadowOffsetX', 0], ['shadowOffsetY', 0]];
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function _default(orignalBrush) {
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// version string can be: '11.0'
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return env.browser.ie && env.browser.version >= 11 ? function () {
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var clipPaths = this.__clipPaths;
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var style = this.style;
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var modified;
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if (clipPaths) {
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for (var i = 0; i < clipPaths.length; i++) {
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var clipPath = clipPaths[i];
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var shape = clipPath && clipPath.shape;
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var type = clipPath && clipPath.type;
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if (shape && (type === 'sector' && shape.startAngle === shape.endAngle || type === 'rect' && (!shape.width || !shape.height))) {
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for (var j = 0; j < shadowTemp.length; j++) {
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// It is save to put shadowTemp static, because shadowTemp
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// will be all modified each item brush called.
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shadowTemp[j][2] = style[shadowTemp[j][0]];
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style[shadowTemp[j][0]] = shadowTemp[j][1];
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}
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modified = true;
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break;
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}
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}
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}
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orignalBrush.apply(this, arguments);
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if (modified) {
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for (var j = 0; j < shadowTemp.length; j++) {
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style[shadowTemp[j][0]] = shadowTemp[j][2];
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}
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}
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} : orignalBrush;
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}
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module.exports = _default;
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