ZenBrowserMirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/zen-browser/pdf.js.git synced 2025-07-08 01:10:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Export the XFA/StructTree-layers in the viewer components

Browse source 
While e.g. the `simpleviewer` and `singlepageviewer` examples work, since they're based on the `BaseViewer`-class, the standalone `pageviewer` example currently doesn't support either XFA- or StructTree-layers. This seems like an obvious oversight, which can be easily addressed simply by exporting the necessary functionality through `pdf_viewer.component.js`, similar to the existing Text/Annotation-layers.

While working on, and testing, these changes I happened to notice a number of smaller things that's also fixed in this patch:

 - Ensure that `XfaLayerBuilder.render` always have a *consistent* return type, to prevent possible run-time failures in `PDFPageView`; PR 13908 follow-up.

 - Change the order of the options in the `XfaLayerBuilder`-constructor to agree with the parameter order in the `DefaultXfaLayerFactory.createXfaLayerBuilder`-method.

 - Add a missing `textHighlighterFactory`-option, in the JSDocs for the `PDFPageView`-class.

 - A couple of small tweaks in the `TextLayerBuilder.render`-method: Re-use an existing Array rather than creating a new one, and replace an `if` with optional chaining instead.

*Please note:* For now XFA-support is currently disabled by default, similar to the regular viewer.
This commit is contained in:
Jonas Jenwald 2021-08-28 18:09:39 +02:00
parent 153d058b3a
commit c6d400ed06
6 changed files with 29 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

7
web/text_layer_builder.js
View file

@ -93,10 +93,9 @@ class TextLayerBuilder {
}
this.cancel();
this.textDivs = [];
if (this.highlighter) {
this.highlighter.setTextMapping(this.textDivs, this.textContentItemsStr);
}
this.textDivs.length = 0;
this.highlighter?.setTextMapping(this.textDivs, this.textContentItemsStr);
const textLayerFrag = document.createDocumentFragment();
this.textLayerRenderTask = renderTextLayer({
textContent: this.textContent,