#1689 Enable the two pages mode when toggling the book mode

[Mark Huang]

Background: When reading research papers, I frequently switch between single-page mode and two pages mode to achieve the best reading experience. To enable quick switching between these modes, I have assigned shortcuts for both within the system. However, at times, in order to display adjacent pages together on the screen, I find it necessary to toggle the book mode while in the two pages view. Therefore, I kindly request a feature that automatically activates the two pages mode when toggling the book mode. This way, I would only need to assign a single shortcut to toggle both the two pages mode and the book mode.

Specific Request: When the single-page mode is active, if the book mode is toggled, whether from unchecked to checked or from checked to unchecked, I kindly request that the corresponding two pages mode be activated simultaneously. For instance, switching from regular single-page mode to two pages mode, or from continuous single-page mode to continuous two pages mode.

This feature addition will not cause any disruptive changes: The need to toggle the book mode only arises when the user is in the two pages mode. Therefore, toggling the book mode in single-page mode and simultaneously activating the two pages mode will not inconvenience users.

Thank you for your tremendous contributions to this open-source project!

[Christiaan Hofman]

It is not obvious what two page mode you would want. There is one with and one without scrolling.

[Christiaan Hofman]

I would advise making one or two AppleScripts to switch the display mode and book mode together. You can add it to the Scripts menu, and assign shortcuts to it in the System Preferences. See the Wiki for details. There is also a sample AppleScript that already does half of this (switching book mode).

[Mark Huang]

Let me explain the request in pseudocode:

If former implement:

function ui_book_mode_toggled(bool flag) {
    set_book_mode(flag)
}

Suggestion:

function ui_book_mode_toggled(bool flag) {
    set_book_mode(flag)
    if (page_mode == 'single page') {
        set_page_mode('two pages')
        is_continous = get_page_continous_mode()
        set_page_contious_mode(is_continous)
    }
}