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evaluator:applicable_contexts:functions:insertion_code
Evaluation Insertion Code
You can insert the result of an evaluation expression into a command line using the {= ... =} insertion code.
The expression can insert the value of a variable - for example, {=source=} or perform a complicated calculation and return the value.
A number of variables are available to the evaluator in this context. Note that some are only applicable to toolbars in the standalone image viewer, and some only apply to Lister toolbars.
| Variable | Type | Description |
|---|---|---|
dest |
path |
The current destination path. |
dest_shell |
bool |
True if the destination is a shell (virtual) folder hosted by Explorer, otherwise false. |
expanded |
uint |
Returns the number of expanded directories. |
fullscreen |
bool |
Viewer only. True if the viewer is fullscreen, otherwise false. |
key_repeat |
bool |
True if the function was launched from a repeated key press (i.e. the key was held down). |
seldirs |
uint |
Returns the number of selected directories. |
selfiles |
uint |
Returns the number of selected files. |
selimage |
bool |
Viewer only. True if an area of the image has been selected, false otherwise. |
selitems |
uint |
Returns the total number of selected items. |
source |
path |
The current source path. |
source_shell |
bool |
True if the source is a shell (virtual) folder hosted by Explorer, otherwise false. |
totaldirs |
uint |
Returns the total number of directories. |
totalfiles |
uint |
Returns the total number of files. |
totalitems |
uint |
Returns the total number of items. |
viewmode |
str |
Returns the current view mode in the file display. Values are largeicons, smallicons, list, details, power, thumbnails and tiles. |
As well as the above variables, you can also use evaluator functions like IsChecked and IsEnabled to query other information about the state of the Lister.
In this context the evaluator can also access the values of the various external control codes as variables within the expression.
For example, the current file path is available as the variable filepath.
The return value from the evaluation expression will be inserted in the command line.