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czkawka/czkawka_gui/src/taskbar_progress_dummy.rs
krzysdz 4c205ce098
Windows taskbar progress support (#264)
* Initial Windows taskbar progress support

* Changes to COM (un)init

It turns out winapi exposes IIDs through a `uuidof()` function of interfaces, so the copied one can be removed.

* Don't return error codes

Now the `TaskbarProgress` functions fail silently.
The `TaskbarProgress` struct now will always be created (even in case of errors in initialisation), but it won't do anything.

* Fix builds for other systems

* Formatted code

* Fix progress shown after the operation finished

A progress update was received after the stop event.
Also `as_ref()` was removed in many places (I don't even know why it was there).

* Remove redundant call to hide

It's already called by the `glib_stop_receiver` receiver.

* Release the ITaskbarList3 and call CoUninitialize at exit

Because objects moved to closures used as fallbacks in GTK have [static lifetimes](https://gtk-rs.org/docs-src/tutorial/closures#closures), the `TaskbarProgress` will never be dropped.
To workaround this problem a `release` function is called when the main window is closed. This function behaves like `drop`, but sets the struct in a valid "empty" state, so that calling `release`/`drop` again won't cause problems.

* Don't set the NORMAL state manually

Because only NOPROGRESS and INDETERMINATE states are used, there is no need to set the NORMAL state when changing the progress value.

Now `set_progress_value` will also change the `TaskbarProgress::current_state` if such situation occurs.

> Unless [SetProgressState](https://docs.microsoft.com/en-us/windows/desktop/api/shobjidl_core/nf-shobjidl_core-itaskbarlist3-setprogressstate)
> has set a blocking state (TBPF_ERROR or TBPF_PAUSED) for the window, a call to **SetProgressValue** assumes the TBPF_NORMAL
> state even if it is not explicitly set. A call to **SetProgressValue** overrides and clears the TBPF_INDETERMINATE state.

See the [SetProgressValue documentation](https://docs.microsoft.com/en-us/windows/win32/api/shobjidl_core/nf-shobjidl_core-itaskbarlist3-setprogressvalue#how-the-taskbar-button-chooses-the-progress-indicator-for-a-group)
2021-02-20 12:24:36 +01:00

47 lines
861 B
Rust

#![cfg(not(target_os = "windows"))]
use std::convert::From;
enum HWND__ {}
type HWND = *mut HWND__;
#[allow(non_camel_case_types, dead_code)]
pub enum TBPFLAG {
TBPF_NOPROGRESS = 0,
TBPF_INDETERMINATE = 0x1,
TBPF_NORMAL = 0x2,
TBPF_ERROR = 0x4,
TBPF_PAUSED = 0x8,
}
pub mod tbp_flags {
pub use super::TBPFLAG::*;
}
pub struct TaskbarProgress {}
impl TaskbarProgress {
pub fn new() -> TaskbarProgress {
TaskbarProgress {}
}
pub fn set_progress_state(&self, _tbp_flags: TBPFLAG) {}
pub fn set_progress_value(&self, _completed: u64, _total: u64) {}
pub fn hide(&self) {}
pub fn show(&self) {}
pub fn release(&mut self) {}
}
impl From<HWND> for TaskbarProgress {
fn from(_hwnd: HWND) -> Self {
TaskbarProgress {}
}
}
impl Drop for TaskbarProgress {
fn drop(&mut self) {}
}