Enum Registration 

pub enum Registration {
    Function {
        id: i16,
        name: &'static str,
        definition: &'static str,
        description: &'static str,
        min_args: i16,
        max_args: i16,
        display_in_dialogs: bool,
        compatibility_flags: u32,
        min_ext_version: ExternVersion,
        min_fm_version: &'static str,
        allowed_versions: AllowedVersions,
        function_ptr: fmx_ExtPluginType,
    },
    ScriptStep {
        id: i16,
        name: &'static str,
        definition: &'static str,
        description: &'static str,
        display_in_dialogs: bool,
        compatibility_flags: u32,
        min_ext_version: ExternVersion,
        min_fm_version: &'static str,
        allowed_versions: AllowedVersions,
        function_ptr: fmx_ExtPluginType,
    },
}

Register ScriptSteps and Functions for your plugin.

Function Registration

Registration enables the function so that it appears in the calculation dialog in the application.

• id is the unique id that you can use to represent which function was called, it will be passed back to the registered function as the first parameter (see the parameter of the same name in fmx_ExtPluginType).
• name is the name of the function as it should appear in the calculation formula.
• definition is the suggested syntax that will appear in the list of functions in the calculation dialog.
• description is the text that will display when auto-entered into the calculation dialog. The format is “type ahead word list|description text”.
• min_args is the number of required parameters for the function. 0 is the smallest valid value.
• max_args is the maximum number of parameters that they user should be able to specify in the calculation dialog and still have correct syntax usage for the function. Use -1 to allow a variable number of parameters up to the number supported by calculation formulas in the application.
• compatible_flags see bit flags above.
• function_ptr is the pointer to the function that must match the signature defined by fmx_ExtPluginType. If you implement FileMakerFunction for your function, then you can just reference MyFunction.extern_func here.

Script Step Registration

Registration::ScriptStep::definition must contain XML defining the script step options. Up to ten script parameters can be specified in addition to the optional target parameter. All the parameters are defined with <Parameter> tags in a <PluginStep> grouping.

The attributes for a <Parameter> tag include:

• Type - if not one of the following four types, the parameter is ignored

  1. Calc - a standard Specify button that brings up the calculation dialog. When the script step is executed, the calculation will be evaluated and its results passed to the plug-in
  2. Bool - simple check box that returns the value of 0 or 1
  3. List - a static drop-down or pop-up list in which the id of the item selected is returned. The size limit of this list is limited by the capabilities of the UI widgets used to display it. A List type parameter expects to contain <Value> tags as specified below
  4. Target - will include a specify button that uses the new Insert From Target field targeting dialog that allows a developer to put the results of a script step into a field (whether or not it is on a layout), into a variable, or insert into the current active field on a layout. If no Target is defined then the result Data object is ignored. If there are multiple Target definitions, only the first one will be honored.

• ID - A value in the range of 0 to 9 which is used as an index into the DataVect parms object for the plug-in to retrieve the value of the parameter. Indexes that are not in range or duplicated will cause the parameter to be ignored. A parameter of type Target ignores this attribute if specified

• Label - The name of parameter or control that is displayed in the UI

• DataType - only used by the Calc and Target parameter types. If not specified or not one of the six data types, the type Text will be used

  1. Text
  2. Number
  3. Date
  4. Time
  5. Timestamp
  6. Container

• ShowInline - value is either true or false. If defined and true, will cause the parameter to show up inlined with the script step in the Scripting Workspace

• Default - either the numeric index of the default list item or the true/false value for a bool item. Ignored for calc and target parameters

Parameters of type List are expected to contain <Value> tags whose values are used to construct the drop-down or pop-up list. The id of a value starts at zero but specific id can be given to a value by defining an ID attribute. If later values do not have an ID attributes the id will be set to the previous values id plus one.

Sample XML description:

<PluginStep>
    <Parameter ID="0" Type="Calc" DataType="text" ShowInline="true" Label="Mood"/>
    <Parameter ID="1" Type="List" ShowInline="true" Label="Color">
    <Value ID="0">Red</Value>
    <Value ID="1">Green</Value>
    <Value ID="2">Blue</Value>
    </Parameter>
    <Parameter ID="2" Type="Bool" Label="Beep when happy"/>
</PluginStep>

Variants

Function

Fields

id: i16

name: &'static str

definition: &'static str

description: &'static str

min_args: i16

max_args: i16

display_in_dialogs: bool

compatibility_flags: u32

min_ext_version: ExternVersion

min_fm_version: &'static str

allowed_versions: AllowedVersions

function_ptr: fmx_ExtPluginType

ScriptStep

Fields

id: i16

name: &'static str

definition: &'static str

description: &'static str

display_in_dialogs: bool

compatibility_flags: u32

min_ext_version: ExternVersion

min_fm_version: &'static str

allowed_versions: AllowedVersions

function_ptr: fmx_ExtPluginType

Implementations

impl Registration

pub fn register(&self, plugin_id: &QuadChar) -> FMError

Called automatically by register_plugin!.

pub fn min_ext_version(&self) -> ExternVersion

Returns minimum allowed sdk version for a function/script step.

pub fn min_fm_version(&self) -> &str

Returns minimum allowed FileMaker version for a function/script step.

pub fn is_fm_version_allowed(&self, version: &ApplicationVersion) -> bool

pub fn unregister(&self, plugin_id: &QuadChar)

Called automatically by register_plugin!.