Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Delay initialization of searching, in the viewer, until the first page has rendered

Browse Source 
When searching occurs for the first time in a document, the `textContent` of all pages will be fetched from the API. If there's a pending search operation when the document loads that will thus lead to a lot of `getTextContent` calls very early on, which may unnecessarily delay rendering of the first page. Generally, in the viewer, a number of non-essential API calls[1] will be deferred until the first page has been rendered, and there's no good reason as far as I can tell to handle searching differently.

---
[1] Such as e.g. `getOutline` and `getAttachments`.
This commit is contained in:
Jonas Jenwald 2019-07-06 17:23:43 +02:00
parent d66d273869
commit d3c0f2861b
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
web/base_viewer.js
View File

@ -443,6 +443,10 @@ class BaseViewer {
// starts to create the correct size canvas. Wait until one page is // starts to create the correct size canvas. Wait until one page is
// rendered so we don't tie up too many resources early on. // rendered so we don't tie up too many resources early on.
onePageRenderedCapability.promise.then(() => { onePageRenderedCapability.promise.then(() => {
if (this.findController) {
this.findController.setDocument(pdfDocument); // Enable searching.
}
if (pdfDocument.loadingParams['disableAutoFetch']) { if (pdfDocument.loadingParams['disableAutoFetch']) {
// XXX: Printing is semi-broken with auto fetch disabled. // XXX: Printing is semi-broken with auto fetch disabled.
pagesCapability.resolve(); pagesCapability.resolve();
@ -471,9 +475,6 @@ class BaseViewer {
this.eventBus.dispatch('pagesinit', { source: this, }); this.eventBus.dispatch('pagesinit', { source: this, });
if (this.findController) {
this.findController.setDocument(pdfDocument); // Enable searching.
}
if (this.defaultRenderingQueue) { if (this.defaultRenderingQueue) {
this.update(); this.update();
} }