Show Open/Save dialog on downloading files #1123

juuz0 · 2024-06-04T14:34:06Z

Superseeds #1070

kelson42 · 2024-06-04T14:38:39Z

@juuz0 Thx a lot for your PR. Il will test ot in the next hours. Just to be sure: you went through all the comments of the superseeded PR to ensure we are on rge right track?

juuz0 · 2024-06-04T14:39:30Z

@kelson42 Yes I believe so.

kelson42

@juuz0 Works almost exactly like it should. Just one comment: Can you please have a better choice of directory following this logic. Actually it could use the same settings (to keep directory path, would be the same as "import").

resources/i18n/en.json

src/kprofile.cpp

src/kprofile.h

veloman-yunkan · 2024-06-11T07:07:05Z

src/kprofile.cpp

+    QTemporaryFile *tempFile = new QTemporaryFile(QDir::tempPath() + "/XXXXXX." + QFileInfo(defaultFileName).suffix());
+    if (tempFile->open()) {
+        QString tempFilePath = tempFile->fileName();
+        tempFile->close();
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+        download->setPath(tempFilePath);
+#else
+        download->setDownloadFileName(tempFilePath);
+#endif
+        connect(download, &QWebEngineDownloadItem::finished, [tempFilePath]() {
+            if(!QDesktopServices::openUrl(QUrl::fromLocalFile(tempFilePath)))
+                showInfoBox(gt("error-title"), gt("error-opening-file-with"), KiwixApp::instance()->getMainWindow());
+        });
+        download->accept();
+    } else {


Memory leak - tempFile is not deleted. You can create the QTemporaryFile object on the stack (rather than on the heap) and disable auto-remove.

Its on the stack now but I havent disabled auto-remove, why do we need that?

Then the file will be deleted when tempFile goes out of scope. Since the file is opened asynchronously (after its download is finished) that operation may fail.

src/kprofile.cpp

juuz0 · 2024-06-13T11:47:41Z

Can you please have a better choice of directory following #1058 (comment). Actually it could use the same settings (to keep directory path, would be the same as "import").

@kelson42 done! please check.

And I also rebased it on main (CI seems to be failing because of that?)

juuz0 · 2024-06-13T14:51:11Z

Fixed an issue where the compilation was failing for QT6 (i was still at 5.15 so it slipped, upgraded now)

src/kprofile.cpp

src/kprofile.h

src/kprofile.cpp

veloman-yunkan

Please rebase and fixup (which should require some manual conflict resolution) for the next (hopefully, final) iteration.

src/kiwixmessagebox.cpp

veloman-yunkan · 2024-06-17T12:35:40Z

src/kiwixmessagebox.cpp

+KiwixMessageBox::Result showKiwixMessageBox(QString title, QString text, QWidget *parent, QString leftTitle, QString rightTitle)
+{
+    KiwixMessageBox *dialog = new KiwixMessageBox(title, text, false, parent, leftTitle, rightTitle);
+    dialog->setAttribute(Qt::WA_DeleteOnClose);


This is an interesting finding. Can't we use the same trick in showInfoBox()? Or maybe even move it into the constructor of KiwixMessageBox?

Moving into the constructor is a nice idea, I did it in the new fixup.
showConfirmBox() also uses execDialog() now - It looks more natural to me that a confirmBox() is high prio and should be handled before interacting with other windows (hence the exec() call)

Now that I looked into the documentation of QDialog::exec() and Qt::WA_DeleteOnClose, I have some doubts. When QDialog::exec() returns the dialog should have closed and hence deleted. Therefore KiwixMessageBox::execDialog() will execute its last few instructions on a deleted object. Am I wrong?

Also, I am also concerned with QDialog::exec() being a blocking function. I wonder how download updater code will react to the the main thread being blocked.

Now that I looked into the documentation of QDialog::exec() and Qt::WA_DeleteOnClose ..........

Sorry for the delay, life happened!
You're right, I looked into qdialog's source code and when deleteOnClose is enabled it deletes it instantly. I reverted it to the old way of ours - a simple deleteLater().

Also, I am also concerned with QDialog::exec() being a blocking function.....

I don't really get this, we aren't starting the download until open/save is clicked (unless you mean the Download Books functionality, which I agree could've been an issue and already reverted...)

veloman-yunkan

My review for the new changes came in the form of two more comments (1, 2) on a previous thread. I am posting this response to the most recent review request to make it explicit that it has not been ignored.

kelson42 · 2024-06-26T19:58:18Z

@juuz0 Works almost exactly like it should. Just one comment: Can you please have a better choice of directory following this logic. Actually it could use the same settings (to keep directory path, would be the same as "import").

@juuz0 It seems this part is not implemented... it seems to always propose to save in the current path which is really not correct.

juuz0 · 2024-07-03T10:32:05Z

@kelson42 It works for me, can you please recheck? (unless I misunderstood what was needed)

In the attached video, original location is common, I save the file, then start another save file session - save it in tmp and in the following saves, it remembers tmp

Screencast.from.2024-07-03.15-57-18.webm

veloman-yunkan · 2024-07-04T14:46:15Z

I will review the PR again after @kelson42 approves it from user's perspective.

kelson42 · 2024-07-13T12:09:43Z

@juuz0 Retested and indeed it work fine but I have a last topic: what happens if there is no known app to open the file? I though I would have a choice of app to open the file? But instead I get a filepicker, this is not correct.

If the app to open the file is not known, then we should display the list of app and the user should choose which app he wants to use to open the file. If this is not possible, then we should probably just disabled the button in the dialog box so the user can only save to a file.

kelson42 · 2024-07-19T05:29:55Z

@juuz0 Beside answering to my last comment, can you please also give feedback to all discussion points open and close them if necessary? Rebasing on main to resolve red CI

kelson42 · 2024-07-27T16:37:16Z

@juuz0 ?

juuz0 · 2024-07-27T16:40:09Z

@kelson42 sooon! (im still trying to figure out how to get the open-with selection).
QDesktopServices calls xdg-open which thinks the file manager/picker is the correct application for that specific file. I'll try finding a workaround.

kelson42 · 2024-08-02T06:59:32Z

@juuz0 Any update? Would really like to merge this PR which is slowly getting old.

kelson42 · 2024-08-11T17:45:52Z

@juuz0 Any update? We need this PR for 2.4.0!

kelson42 · 2024-09-01T13:13:59Z

@veloman-yunkan Can younplease rebase an complete this PR so we can complete 2.4.0 milestone?

juuz0 · 2024-09-09T15:41:25Z

Apologies @kelson42, I'm equipped with several things IRL - cant get the time, and yeah if someone is willing to take over it, please do! :>

My 2 cents:
The issue is xdg-open (called by QDesktopServices) which thinks the file manager/picker is the correct application for that specific file (it works ok for pdf but epub files open the manager).

One workaround is using xdg-mime. For mime-types which dont have a specific application set, xdg-mime returns nothing so if we can disable the Open button when xdg-mime query is empty, that could help.
BUT remember xdg-mime is not available on windows obviously - its possible QDesktopServices opens the application-picker-menu on windows though...up to testing!

kelson42 · 2024-09-28T12:57:13Z

@veloman-yunkan AFAIK this is the last piece of work which is assigned to you in the 2.4.0 milestone.

It started as a simple yes/no box but is now being used as an InfoBox, ConfirmBox and a customized MessageBox (in further commits) - this sounds better!

Added a function to show custom choices instead of yes/no. The chosen option is returned A closeButton is also added to the dialog.

veloman-yunkan · 2024-11-05T15:36:32Z

Rebased resolving a couple of conflicts. While rebasing dropped commit 3ce2423 since a similar change 3988067 from #1134 made it redundant.

veloman-yunkan · 2024-11-06T07:51:01Z

While rebasing dropped commit 3ce2423 since a similar change 3988067 from #1134 made it redundant.

The said two commits use different settings for remembering the previous directory used for open/save operations:

3ce2423 (from the previous version of this PR) uses the directory of the last "Open file..." operation. Thus in this PR choosing to save a resource from a ZIM instead of opening it by an external application would affect the location where the file selection dialog will start during the next operation of opening a ZIM file from the disk.
3988067 (from Implemented Save Page #1134) introduced a separate persistent setting for the directory of the "Save As..." operation.

I think that behaviour 2. is more appropriate since the content being saved from a ZIM file is of a different kind and shouldn't affect the location for opening ZIM files.

QWebEngineDownloadItem of Qt 5 was replaced with QWebEngineDownloadRequest in Qt 6. Besides the API of QWebEngineDownloadItem has slightly changed in Qt 5.14. This commit reduces the pollution of the code by conditional compilation needed to support all those versions of Qt.

veloman-yunkan · 2024-11-06T16:12:40Z

Retested and indeed it work fine but I have a last topic: what happens if there is no known app to open the file? I though I would have a choice of app to open the file? But instead I get a filepicker, this is not correct.

If the app to open the file is not known, then we should display the list of app and the user should choose which app he wants to use to open the file. If this is not possible, then we should probably just disabled the button in the dialog box so the user can only save to a file.

@kelson42 What do you mean by filepicker?

In my case (on Ubuntu 22.04) I only get an error message:

gio: file:///tmp/eXSEiM.o: No application is registered as handling this file

Qt doesn't seem to provide a way of finding out the application that will be used to open the given file. In my case it didn't even detect that the attempt to open the file failed, which is a documented known issue:

Warning: A return value of true indicates that the application has successfully requested the operating system to open the URL in an external application. The external application may still fail to launch or fail to open the requested URL. This result will not be reported back to the application.

kelson42 mentioned this pull request Jun 4, 2024

Fix #697 : Clicking on a PDF link opens directly in a PDF reader #1070

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juuz0 requested review from veloman-yunkan and kelson42 June 4, 2024 14:36

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juuz0 added 2 commits November 5, 2024 19:30

KiwixConfirmBox is now KiwixMessageBox

24fa7f3

It started as a simple yes/no box but is now being used as an InfoBox, ConfirmBox and a customized MessageBox (in further commits) - this sounds better!

Introduce showKiwixMessageBox()

df2d29c

Added a function to show custom choices instead of yes/no. The chosen option is returned A closeButton is also added to the dialog.

veloman-yunkan force-pushed the pdfSmth branch from f046af2 to 16325ce Compare November 5, 2024 15:33

veloman-yunkan added 4 commits November 6, 2024 13:15

Fixed a compilation error when using Qt 6

f6cb2b9

Better "Download Finished" message box

33702e8

Open/Save functionality for downloaded files

7e04b42

veloman-yunkan force-pushed the pdfSmth branch from 16325ce to 7e04b42 Compare November 6, 2024 09:32

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Show Open/Save dialog on downloading files #1123

Show Open/Save dialog on downloading files #1123

juuz0 commented Jun 4, 2024 •

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Show Open/Save dialog on downloading files #1123

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