Trait AssistantExt 

pub trait AssistantExt:
    IsA<Assistant>
    + Sealed
    + 'static {
    // Provided methods
    fn add_action_widget(&self, child: &impl IsA<Widget>) { ... }
    fn append_page(&self, page: &impl IsA<Widget>) -> i32 { ... }
    fn commit(&self) { ... }
    fn current_page(&self) -> i32 { ... }
    fn n_pages(&self) -> i32 { ... }
    fn nth_page(&self, page_num: i32) -> Option<Widget> { ... }
    fn page_is_complete(&self, page: &impl IsA<Widget>) -> bool { ... }
    fn page_has_padding(&self, page: &impl IsA<Widget>) -> bool { ... }
    fn page_title(&self, page: &impl IsA<Widget>) -> Option<GString> { ... }
    fn page_type(&self, page: &impl IsA<Widget>) -> AssistantPageType { ... }
    fn insert_page(&self, page: &impl IsA<Widget>, position: i32) -> i32 { ... }
    fn next_page(&self) { ... }
    fn prepend_page(&self, page: &impl IsA<Widget>) -> i32 { ... }
    fn previous_page(&self) { ... }
    fn remove_action_widget(&self, child: &impl IsA<Widget>) { ... }
    fn remove_page(&self, page_num: i32) { ... }
    fn set_current_page(&self, page_num: i32) { ... }
    fn set_forward_page_func(
        &self,
        page_func: Option<Box_<dyn Fn(i32) -> i32 + 'static>>,
    ) { ... }
    fn set_page_complete(&self, page: &impl IsA<Widget>, complete: bool) { ... }
    fn set_page_has_padding(&self, page: &impl IsA<Widget>, has_padding: bool) { ... }
    fn set_page_title(&self, page: &impl IsA<Widget>, title: &str) { ... }
    fn set_page_type(&self, page: &impl IsA<Widget>, type_: AssistantPageType) { ... }
    fn update_buttons_state(&self) { ... }
    fn use_header_bar(&self) -> i32 { ... }
    fn child_is_complete<T: IsA<Widget>>(&self, item: &T) -> bool { ... }
    fn set_child_complete<T: IsA<Widget>>(&self, item: &T, complete: bool) { ... }
    fn child_has_padding<T: IsA<Widget>>(&self, item: &T) -> bool { ... }
    fn set_child_has_padding<T: IsA<Widget>>(&self, item: &T, has_padding: bool) { ... }
    fn child_page_type<T: IsA<Widget>>(&self, item: &T) -> AssistantPageType { ... }
    fn set_child_page_type<T: IsA<Widget>>(
        &self,
        item: &T,
        page_type: AssistantPageType,
    ) { ... }
    fn child_title<T: IsA<Widget>>(&self, item: &T) -> Option<GString> { ... }
    fn set_child_title<T: IsA<Widget>>(&self, item: &T, title: Option<&str>) { ... }
    fn connect_apply<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId { ... }
    fn connect_cancel<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId { ... }
    fn connect_close<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId { ... }
    fn connect_escape<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId { ... }
    fn emit_escape(&self) { ... }
    fn connect_prepare<F: Fn(&Self, &Widget) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId { ... }
}

Trait containing all Assistant methods.

Implementors

Assistant

Provided Methods

fn add_action_widget(&self, child: &impl IsA<Widget>)

Adds a widget to the action area of a Assistant.

child

a Widget

fn append_page(&self, page: &impl IsA<Widget>) -> i32

Appends a page to the self.

page

a Widget

Returns

the index (starting at 0) of the inserted page

fn commit(&self)

Erases the visited page history so the back button is not shown on the current page, and removes the cancel button from subsequent pages.

Use this when the information provided up to the current page is hereafter deemed permanent and cannot be modified or undone. For example, showing a progress page to track a long-running, unreversible operation after the user has clicked apply on a confirmation page.

fn current_page(&self) -> i32

Returns the page number of the current page.

Returns

The index (starting from 0) of the current page in the self, or -1 if the self has no pages, or no current page.

fn n_pages(&self) -> i32

Returns the number of pages in the self

Returns

the number of pages in the self

fn nth_page(&self, page_num: i32) -> Option<Widget>

Returns the child widget contained in page number page_num.

page_num

the index of a page in the self, or -1 to get the last page

Returns

the child widget, or None if page_num is out of bounds

fn page_is_complete(&self, page: &impl IsA<Widget>) -> bool

Gets whether page is complete.

page

a page of self

Returns

true if page is complete.

fn page_has_padding(&self, page: &impl IsA<Widget>) -> bool

Gets whether page has padding.

page

a page of self

Returns

true if page has padding

fn page_title(&self, page: &impl IsA<Widget>) -> Option<GString>

Gets the title for page.

page

a page of self

Returns

the title for page

fn page_type(&self, page: &impl IsA<Widget>) -> AssistantPageType

Gets the page type of page.

page

a page of self

Returns

the page type of page

fn insert_page(&self, page: &impl IsA<Widget>, position: i32) -> i32

Inserts a page in the self at a given position.

page

a Widget

position

the index (starting at 0) at which to insert the page, or -1 to append the page to the self

Returns

the index (starting from 0) of the inserted page

fn next_page(&self)

Navigate to the next page.

It is a programming error to call this function when there is no next page.

This function is for use when creating pages of the AssistantPageType::Custom type.

fn prepend_page(&self, page: &impl IsA<Widget>) -> i32

Prepends a page to the self.

page

a Widget

Returns

the index (starting at 0) of the inserted page

fn previous_page(&self)

Navigate to the previous visited page.

It is a programming error to call this function when no previous page is available.

This function is for use when creating pages of the AssistantPageType::Custom type.

fn remove_action_widget(&self, child: &impl IsA<Widget>)

Removes a widget from the action area of a Assistant.

child

a Widget

fn remove_page(&self, page_num: i32)

Removes the page_num’s page from self.

page_num

the index of a page in the self, or -1 to remove the last page

fn set_current_page(&self, page_num: i32)

Switches the page to page_num.

Note that this will only be necessary in custom buttons, as the self flow can be set with set_forward_page_func().

page_num

index of the page to switch to, starting from 0. If negative, the last page will be used. If greater than the number of pages in the self, nothing will be done.

fn set_forward_page_func( &self, page_func: Option<Box_<dyn Fn(i32) -> i32 + 'static>>, )

Sets the page forwarding function to be page_func.

This function will be used to determine what will be the next page when the user presses the forward button. Setting page_func to None will make the assistant to use the default forward function, which just goes to the next visible page.

page_func

the GtkAssistantPageFunc, or None to use the default one

fn set_page_complete(&self, page: &impl IsA<Widget>, complete: bool)

Sets whether page contents are complete.

This will make self update the buttons state to be able to continue the task.

page

a page of self

complete

the completeness status of the page

fn set_page_has_padding(&self, page: &impl IsA<Widget>, has_padding: bool)

Sets whether the assistant is adding padding around the page.

page

a page of self

has_padding

whether this page has padding

fn set_page_title(&self, page: &impl IsA<Widget>, title: &str)

Sets a title for page.

The title is displayed in the header area of the assistant when page is the current page.

page

a page of self

title

the new title for page

fn set_page_type(&self, page: &impl IsA<Widget>, type_: AssistantPageType)

Sets the page type for page.

The page type determines the page behavior in the self.

page

a page of self

type_

the new type for page

fn update_buttons_state(&self)

Forces self to recompute the buttons state.

GTK+ automatically takes care of this in most situations, e.g. when the user goes to a different page, or when the visibility or completeness of a page changes.

One situation where it can be necessary to call this function is when changing a value on the current page affects the future page flow of the assistant.

fn use_header_bar(&self) -> i32

true if the assistant uses a HeaderBar for action buttons instead of the action-area.

For technical reasons, this property is declared as an integer property, but you should only set it to true or false.

fn child_is_complete<T: IsA<Widget>>(&self, item: &T) -> bool

fn set_child_complete<T: IsA<Widget>>(&self, item: &T, complete: bool)

fn child_has_padding<T: IsA<Widget>>(&self, item: &T) -> bool

fn set_child_has_padding<T: IsA<Widget>>(&self, item: &T, has_padding: bool)

fn child_page_type<T: IsA<Widget>>(&self, item: &T) -> AssistantPageType

fn set_child_page_type<T: IsA<Widget>>( &self, item: &T, page_type: AssistantPageType, )

fn child_title<T: IsA<Widget>>(&self, item: &T) -> Option<GString>

fn set_child_title<T: IsA<Widget>>(&self, item: &T, title: Option<&str>)

fn connect_apply<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

The ::apply signal is emitted when the apply button is clicked.

The default behavior of the Assistant is to switch to the page after the current page, unless the current page is the last one.

A handler for the ::apply signal should carry out the actions for which the wizard has collected data. If the action takes a long time to complete, you might consider putting a page of type AssistantPageType::Progress after the confirmation page and handle this operation within the prepare signal of the progress page.

fn connect_cancel<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

The ::cancel signal is emitted when then the cancel button is clicked.

fn connect_close<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

The ::close signal is emitted either when the close button of a summary page is clicked, or when the apply button in the last page in the flow (of type AssistantPageType::Confirm) is clicked.

fn connect_escape<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

fn emit_escape(&self)

fn connect_prepare<F: Fn(&Self, &Widget) + 'static>( &self, f: F, ) -> SignalHandlerId

The ::prepare signal is emitted when a new page is set as the assistant’s current page, before making the new page visible.

A handler for this signal can do any preparations which are necessary before showing page.

page

the current page

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<O: IsA<Assistant>> AssistantExt for O