Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
fix: crash when saving edited PDF files (#32537)
* fix: crash when saving edited PDF files * chore: update patches after backport Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com> Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>
- Loading branch information
1 parent
221d222
commit 1efa631
Showing
2 changed files
with
86 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
85 changes: 85 additions & 0 deletions
85
patches/chromium/fix_crash_when_saving_edited_pdf_files.patch
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,85 @@ | ||
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 | ||
From: Shelley Vohr <shelley.vohr@gmail.com> | ||
Date: Mon, 17 Jan 2022 23:47:54 +0100 | ||
Subject: fix: crash when saving edited PDF files | ||
|
||
This commit fixes a crash that persists any time a user attempts to | ||
download an edited PDF. This was happening because the logic flow for | ||
downloading of any edited PDF triggers a call to | ||
chrome.fileSystem.chooseEntry, which we do not support and which | ||
therefore causes unmapped page access crashes. | ||
|
||
This patch can be removed should we choose to support chrome.fileSystem | ||
or support it enough to fix the crash. | ||
|
||
diff --git a/chrome/browser/resources/pdf/pdf_viewer.js b/chrome/browser/resources/pdf/pdf_viewer.js | ||
index 7b1e50624df15f4d77cbe5d014e4f57c7499a999..f3b8dcd32369e9f954a0791588ba4955c6cdae7e 100644 | ||
--- a/chrome/browser/resources/pdf/pdf_viewer.js | ||
+++ b/chrome/browser/resources/pdf/pdf_viewer.js | ||
@@ -974,25 +974,12 @@ export class PDFViewerElement extends PDFViewerBaseElement { | ||
dataArray = [result.dataToSave]; | ||
} | ||
|
||
+ const a = document.createElement('a'); | ||
+ a.download = this.attachments_[index].name; | ||
const blob = new Blob(dataArray); | ||
- const fileName = this.attachments_[index].name; | ||
- chrome.fileSystem.chooseEntry( | ||
- {type: 'saveFile', suggestedName: fileName}, entry => { | ||
- if (chrome.runtime.lastError) { | ||
- if (chrome.runtime.lastError.message !== 'User cancelled') { | ||
- console.error( | ||
- 'chrome.fileSystem.chooseEntry failed: ' + | ||
- chrome.runtime.lastError.message); | ||
- } | ||
- return; | ||
- } | ||
- entry.createWriter(writer => { | ||
- writer.write(blob); | ||
- // Unblock closing the window now that the user has saved | ||
- // successfully. | ||
- chrome.mimeHandlerPrivate.setShowBeforeUnloadDialog(false); | ||
- }); | ||
- }); | ||
+ a.href = URL.createObjectURL(blob); | ||
+ a.click(); | ||
+ URL.revokeObjectURL(a.href); | ||
} | ||
|
||
/** | ||
@@ -1120,29 +1107,12 @@ export class PDFViewerElement extends PDFViewerBaseElement { | ||
fileName = fileName + '.pdf'; | ||
} | ||
|
||
- chrome.fileSystem.chooseEntry( | ||
- { | ||
- type: 'saveFile', | ||
- accepts: [{description: '*.pdf', extensions: ['pdf']}], | ||
- suggestedName: fileName | ||
- }, | ||
- entry => { | ||
- if (chrome.runtime.lastError) { | ||
- if (chrome.runtime.lastError.message !== 'User cancelled') { | ||
- console.error( | ||
- 'chrome.fileSystem.chooseEntry failed: ' + | ||
- chrome.runtime.lastError.message); | ||
- } | ||
- return; | ||
- } | ||
- entry.createWriter(writer => { | ||
- writer.write( | ||
- new Blob([result.dataToSave], {type: 'application/pdf'})); | ||
- // Unblock closing the window now that the user has saved | ||
- // successfully. | ||
- chrome.mimeHandlerPrivate.setShowBeforeUnloadDialog(false); | ||
- }); | ||
- }); | ||
+ const a = document.createElement('a'); | ||
+ a.download = fileName; | ||
+ const blob = new Blob([result.dataToSave], {type: 'application/pdf'}); | ||
+ a.href = URL.createObjectURL(blob); | ||
+ a.click(); | ||
+ URL.revokeObjectURL(a.href); | ||
|
||
// <if expr="enable_ink"> | ||
// Saving in Annotation mode is destructive: crbug.com/919364 |