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[api-minor] Reject the RenderTask with an actual Error, instead of just a string, when rendering is cancelled

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This patch gets rid of the only case in the code-base where we're throwing a plain `string`, rather than an `Error`, which besides better/more consistent error handling also allows us to enable the [`no-throw-literal`](http://eslint.org/docs/rules/no-throw-literal) ESLint rule.
This commit is contained in:
Jonas Jenwald 2017-03-13 13:32:23 +01:00
parent 6d672c4ba6
commit d37d271afa
7 changed files with 66 additions and 8 deletions
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14
src/display/dom_utils.js
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@ -173,6 +173,19 @@ var CustomStyle = (function CustomStyleClosure() {
return CustomStyle;
})();
var RenderingCancelledException = (function RenderingCancelledException() {
function RenderingCancelledException(msg, type) {
this.message = msg;
this.type = type;
}
RenderingCancelledException.prototype = new Error();
RenderingCancelledException.prototype.name = 'RenderingCancelledException';
RenderingCancelledException.constructor = RenderingCancelledException;
return RenderingCancelledException;
})();
var hasCanvasTypedArrays;
if (typeof PDFJSDev === 'undefined' ||
!PDFJSDev.test('FIREFOX || MOZCENTRAL || CHROME')) {
@ -337,6 +350,7 @@ exports.isExternalLinkTargetSet = isExternalLinkTargetSet;
exports.isValidUrl = isValidUrl;
exports.getFilenameFromUrl = getFilenameFromUrl;
exports.LinkTarget = LinkTarget;
exports.RenderingCancelledException = RenderingCancelledException;
exports.hasCanvasTypedArrays = hasCanvasTypedArrays;
exports.getDefaultSetting = getDefaultSetting;
exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;