Sumatrapdf: Tab mode: allow multiple windows, moving tabs between windows

[kjk]

This only applies to tabs ui mode.

We need to implement drag&drop of tabs, with the following behavior:

• dragging within tab bar works like today: re-arranges the tab order
• dragging a tab to another sumatra window moves the tab to that window. By default as the last tab. As a bonus, if dropped on tab area, puts at the position where it was dropped
• dragging a tab outside a window and dropping creates a new window with this tab as the first tab

As a bonus, when drag&drop is initated, the drag image is a thumbnail of the document.

When dragging out the last tab of the window, we close the window.

[cheesecracker]

Please add the following behaviour:

• Right-click on a tab. Context menu suggests "Move to new window"
  NB: This is implemented in Firefox and I find it very cool to use.

[theFork]

+1
Support for multiple windows would be nice, regardless how to un-dock tabs.

[Balls0fSteel]

Subscribed, this would be awesome.

[AndyDurden]

Very interested in this

[p0te]

How would one contribute to this issue? I plan on looking at how this behavior is accomplished in chromium and Firefox, but I'm not nearly skilled enough to try to replicate that code. I guess I'll see what I can gather from the source and post my findings here. or is there a better mechanism for that in GitHub? (i.e. If I have an idea of how to implement the solution, but not the skills to implement it myself, how do I share that idea )

[kjk]

Really the only thing that would help is a working implementation. It's just a lot of work.

[Sasstraliss]

Would really like this feature

[spok7]

Workaround for multiple tabs:

1. Run SumatraPDF
2. Create and go to a new virtual desktop (Task View Button or Win+Tab, New desktop)
3. Run SumatraPDF in new desktop (this should run a new instance in the new desktop)
4. Drag window from one virtual desktop to the other in task view
5. Close unused virtual desktop
6. Profit

Edit: I am running Windows 10 Pro, and I am not able to run more than 2 instances with this method.

[spok7]

Sadly that solution only works for Windows 10 systems. Shout outs to all of the awesome devs that are working on these features!

[strandloper]

I tried the suggestion from @spok7 but it didn't work for me. When I tried to launch the new instance of SumatraPDF on the second desktop, it just switched to the first desktop and focused the already running SumatraPDF instance. This on Windows 10 Fall Creator's Edition.

[strandloper]

I have just found an easier way to launch a second SumatraPDF instance. No need for virtual desktops; just make a second copy of SumatraPDF.exe, I just copied and pasted so I have "SumatraPDF - Copy.exe". Execute both executables and you end up with two instances of SumatraPDF.

[ThrosturX]

How has this PDF viewer survived 4 years since this issue opened?? Do people really only read 1 PDF at a time, like ever?

EDIT: Best workaround so far: Options > Use tabs (uncheck)

[RazinShaikh]

Workaround suggested by @ThrosturX can also be used to open multiple windows with multiple tabs.

1. Open the tabs you want in one window
2. Options > Use tabs (uncheck)
3. Open another window
4. Options > Use tabs (check)
5. Open files in the new window as tabs
6. Repeat as needed

[GitHubRulesOK]

There are several ways to run two windows together like this (explained elswhere but repeated here for relevance to this thread)

The option I am showing is to add a section in external viewers which uses the suggestion above to use a copy of the main exe.
So find the folder with your current SumatraPDF.exe (In my case it is c:usersusernameAppDatalocalSumatraPDF) and add a new folder. I simply called it 2 for brevity also copy the SumatraPDF.exe by default it is called SumatraPDF - Copy.exe

In the SumatraPDF-settings.txt file you need to modify my entry to suit your own locations adding the following few lines in the ExternalViewers section

ExternalViewers [
    [
        CommandLine = "C:\Users\Username\AppData\Local\SumatraPDF\SumatraPDF - copy.exe" -appdata "C:\Users\Username\AppData\Local\SumatraPDF\2" "%1" -page %p
        Name = Second Window
    ]
]

[kjk]

Some progress, available in latest pre-release (https://www.sumatrapdfreader.org/prerelease.html).

I've implemented Ctrl-Shift-N which opens a new window showing a currently shown document (i.e. "duplicate in current window).

There's also Ctrl-N to open a new, empty window (like Chrome's Ctrl-N) and "File / New window" menu item.

[aneutron]

@kjk Thank you very much for this much needed feature

[horychen]

I am surprised reading this thread...
Before Sumatra 3, it has the multiple window feature.
Just go to its official site and download the 2.5.2 version.

[SumatraPeter]

@horychen: What's there to be so surprised about? Before 3.0 Sumatra did not support multiple tabs inside a single window. You can still turn off tabs if you want to go back to previous behavior, instead of reverting to such an old version.

[horychen]

@horychen: What's there to be so surprised about? Before 3.0 Sumatra did not support multiple tabs inside a single window. You can still turn off tabs if you want to go back to previous behavior, instead of reverting to such an old version.

It seems I misunderstood the issue. People want tabs feature and multiple window feature at the same time, while I was looking for multiple window feature with SumatraPDF 3. After reading your comment I managed to use multiple window with SumatraPDF 3 by check "settings-options-advanced-Use tabs". This is exactly what I was looking for. Thanks!