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Move the initialization of "auto print" out of PDFViewerApplication.load

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Over time, with more and more API-functionality added, the `PDFViewerApplication.load` method has become quite large and complex. In an attempt to improve the current situation somewhat, this patch moves the fetching and initialization of "auto print" out into its own (private) helper method instead.
This commit is contained in:
Jonas Jenwald 2020-04-05 10:59:10 +02:00
parent d07be1a89b
commit b9add65099
1 changed files with 51 additions and 40 deletions
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91
web/app.js
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@ -1185,46 +1185,8 @@ const PDFViewerApplication = {
});
});
pagesPromise.then(async () => {
const [openAction, javaScript] = await Promise.all([
openActionPromise,
pdfDocument.getJavaScript(),
]);
let triggerAutoPrint = false;
if (openAction && openAction.action === "Print") {
triggerAutoPrint = true;
}
if (javaScript) {
javaScript.some(js => {
if (!js) {
// Don't warn/fallback for empty JavaScript actions.
return false;
}
console.warn("Warning: JavaScript is not supported");
this.fallback(UNSUPPORTED_FEATURES.javaScript);
return true;
});
if (!triggerAutoPrint) {
// Hack to support auto printing.
for (const js of javaScript) {
if (js && AutoPrintRegExp.test(js)) {
triggerAutoPrint = true;
break;
}
}
}
}
if (!this.supportsPrinting) {
return;
}
if (triggerAutoPrint) {
setTimeout(function() {
window.print();
});
}
pagesPromise.then(() => {
this._initializeAutoPrint(pdfDocument, openActionPromise);
});
onePageRendered.then(() => {
@ -1240,6 +1202,55 @@ const PDFViewerApplication = {
this._initializeMetadata(pdfDocument);
},
/**
* @private
*/
async _initializeAutoPrint(pdfDocument, openActionPromise) {
const [openAction, javaScript] = await Promise.all([
openActionPromise,
pdfDocument.getJavaScript(),
]);
if (pdfDocument !== this.pdfDocument) {
return; // The document was closed while the auto print data resolved.
}
let triggerAutoPrint = false;
if (openAction && openAction.action === "Print") {
triggerAutoPrint = true;
}
if (javaScript) {
javaScript.some(js => {
if (!js) {
// Don't warn/fallback for empty JavaScript actions.
return false;
}
console.warn("Warning: JavaScript is not supported");
this.fallback(UNSUPPORTED_FEATURES.javaScript);
return true;
});
if (!triggerAutoPrint) {
// Hack to support auto printing.
for (const js of javaScript) {
if (js && AutoPrintRegExp.test(js)) {
triggerAutoPrint = true;
break;
}
}
}
}
if (!this.supportsPrinting) {
return;
}
if (triggerAutoPrint) {
setTimeout(function() {
window.print();
});
}
},
/**
* @private
*/