binding

package
v2.0.4-rc1 Latest Latest
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 Go to latest Published: Jul 28, 2021 License: BSD-3-Clause Imports: 5 Imported by: 385

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Constants

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Variables

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Functions

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Types

type Bool 

type Bool interface {
	DataItem
	Get() (bool, error)
	Set(bool) error
}

Bool supports binding a bool value.

Since: 2.0

func BindPreferenceBool 

func BindPreferenceBool(key string, p fyne.Preferences) Bool

BindPreferenceBool returns a bindable bool value that is managed by the application preferences. Changes to this value will be saved to application storage and when the app starts the previous values will be read.

Since: 2.0

func NewBool 

func NewBool() Bool

NewBool returns a bindable bool value that is managed internally.

Since: 2.0

func StringToBool 

func StringToBool(str String) Bool

StringToBool creates a binding that connects a String data item to a Bool. Changes to the String will be parsed and pushed to the Bool if the parse was successful, and setting the Bool update the String binding.

Since: 2.0

func StringToBoolWithFormat 

func StringToBoolWithFormat(str String, format string) Bool

StringToBoolWithFormat creates a binding that connects a String data item to a Bool and is presented using the specified format. Changes to the Bool will be parsed and if the format matches and the parse is successful it will be pushed to the String. Setting the Bool will push a formatted value into the String.

Since: 2.0

type BoolList 

type BoolList interface {
	DataList

	Append(bool) error
	Get() ([]bool, error)
	GetValue(int) (bool, error)
	Prepend(bool) error
	Set([]bool) error
	SetValue(int, bool) error
}

BoolList supports binding a list of bool values.

Since: 2.0

func NewBoolList 

func NewBoolList() BoolList

NewBoolList returns a bindable list of bool values.

Since: 2.0

type DataItem 

type DataItem interface {
	// AddListener attaches a new change listener to this DataItem.
	// Listeners are called each time the data inside this DataItem changes.
	// Additionally the listener will be triggered upon successful connection to get the current value.
	AddListener(DataListener)
	// RemoveListener will detach the specified change listener from the DataItem.
	// Disconnected listener will no longer be triggered when changes occur.
	RemoveListener(DataListener)
}

DataItem is the base interface for all bindable data items.

Since: 2.0

type DataList 

type DataList interface {
	DataItem
	GetItem(int) (DataItem, error)
	Length() int
}

DataList is the base interface for all bindable data lists.

Since: 2.0

type DataListener 

type DataListener interface {
	DataChanged()
}

DataListener is any object that can register for changes in a bindable DataItem. See NewDataListener to define a new listener using just an inline function.

Since: 2.0

func NewDataListener 

func NewDataListener(fn func()) DataListener

NewDataListener is a helper function that creates a new listener type from a simple callback function.

Since: 2.0

type DataMap 

type DataMap interface {
	DataItem
	GetItem(string) (DataItem, error)
	Keys() []string
}

DataMap is the base interface for all bindable data maps.

Since: 2.0

type ExternalBool 

type ExternalBool interface {
	Bool
	Reload() error
}

ExternalBool supports binding a bool value to an external value.

Since: 2.0

func BindBool 

func BindBool(v *bool) ExternalBool

BindBool returns a new bindable value that controls the contents of the provided bool variable. If your code changes the content of the variable this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalBoolList 

type ExternalBoolList interface {
	BoolList

	Reload() error
}

ExternalBoolList supports binding a list of bool values from an external variable.

Since: 2.0

func BindBoolList 

func BindBoolList(v *[]bool) ExternalBoolList

BindBoolList returns a bound list of bool values, based on the contents of the passed slice. If your code changes the content of the slice this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalFloat 

type ExternalFloat interface {
	Float
	Reload() error
}

ExternalFloat supports binding a float64 value to an external value.

Since: 2.0

func BindFloat 

func BindFloat(v *float64) ExternalFloat

BindFloat returns a new bindable value that controls the contents of the provided float64 variable. If your code changes the content of the variable this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalFloatList 

type ExternalFloatList interface {
	FloatList

	Reload() error
}

ExternalFloatList supports binding a list of float64 values from an external variable.

Since: 2.0

func BindFloatList 

func BindFloatList(v *[]float64) ExternalFloatList

BindFloatList returns a bound list of float64 values, based on the contents of the passed slice. If your code changes the content of the slice this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalInt 

type ExternalInt interface {
	Int
	Reload() error
}

ExternalInt supports binding a int value to an external value.

Since: 2.0

func BindInt 

func BindInt(v *int) ExternalInt

BindInt returns a new bindable value that controls the contents of the provided int variable. If your code changes the content of the variable this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalIntList 

type ExternalIntList interface {
	IntList

	Reload() error
}

ExternalIntList supports binding a list of int values from an external variable.

Since: 2.0

func BindIntList 

func BindIntList(v *[]int) ExternalIntList

BindIntList returns a bound list of int values, based on the contents of the passed slice. If your code changes the content of the slice this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalRune 

type ExternalRune interface {
	Rune
	Reload() error
}

ExternalRune supports binding a rune value to an external value.

Since: 2.0

func BindRune 

func BindRune(v *rune) ExternalRune

BindRune returns a new bindable value that controls the contents of the provided rune variable. If your code changes the content of the variable this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalRuneList 

type ExternalRuneList interface {
	RuneList

	Reload() error
}

ExternalRuneList supports binding a list of rune values from an external variable.

Since: 2.0

func BindRuneList 

func BindRuneList(v *[]rune) ExternalRuneList

BindRuneList returns a bound list of rune values, based on the contents of the passed slice. If your code changes the content of the slice this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalString 

type ExternalString interface {
	String
	Reload() error
}

ExternalString supports binding a string value to an external value.

Since: 2.0

func BindString 

func BindString(v *string) ExternalString

BindString returns a new bindable value that controls the contents of the provided string variable. If your code changes the content of the variable this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalStringList 

type ExternalStringList interface {
	StringList

	Reload() error
}

ExternalStringList supports binding a list of string values from an external variable.

Since: 2.0

func BindStringList 

func BindStringList(v *[]string) ExternalStringList

BindStringList returns a bound list of string values, based on the contents of the passed slice. If your code changes the content of the slice this refers to you should call Reload() to inform the bindings.

Since: 2.0

type ExternalUntypedMap 

type ExternalUntypedMap interface {
	UntypedMap
	Reload() error
}

ExternalUntypedMap is a map data binding with all values untyped (interface{}), connected to an external data source.

Since: 2.0

func BindUntypedMap 

func BindUntypedMap(d *map[string]interface{}) ExternalUntypedMap

BindUntypedMap creates a new map binding of string to interface{} based on the data passed. If your code changes the content of the map this refers to you should call Reload() to inform the bindings.

Since: 2.0

type Float 

type Float interface {
	DataItem
	Get() (float64, error)
	Set(float64) error
}

Float supports binding a float64 value.

Since: 2.0

func BindPreferenceFloat 

func BindPreferenceFloat(key string, p fyne.Preferences) Float

BindPreferenceFloat returns a bindable float64 value that is managed by the application preferences. Changes to this value will be saved to application storage and when the app starts the previous values will be read.

Since: 2.0

func NewFloat 

func NewFloat() Float

NewFloat returns a bindable float64 value that is managed internally.

Since: 2.0

func StringToFloat 

func StringToFloat(str String) Float

StringToFloat creates a binding that connects a String data item to a Float. Changes to the String will be parsed and pushed to the Float if the parse was successful, and setting the Float update the String binding.

Since: 2.0

func StringToFloatWithFormat 

func StringToFloatWithFormat(str String, format string) Float

StringToFloatWithFormat creates a binding that connects a String data item to a Float and is presented using the specified format. Changes to the Float will be parsed and if the format matches and the parse is successful it will be pushed to the String. Setting the Float will push a formatted value into the String.

Since: 2.0

type FloatList 

type FloatList interface {
	DataList

	Append(float64) error
	Get() ([]float64, error)
	GetValue(int) (float64, error)
	Prepend(float64) error
	Set([]float64) error
	SetValue(int, float64) error
}

FloatList supports binding a list of float64 values.

Since: 2.0

func NewFloatList 

func NewFloatList() FloatList

NewFloatList returns a bindable list of float64 values.

Since: 2.0

type Int 

type Int interface {
	DataItem
	Get() (int, error)
	Set(int) error
}

Int supports binding a int value.

Since: 2.0

func BindPreferenceInt 

func BindPreferenceInt(key string, p fyne.Preferences) Int

BindPreferenceInt returns a bindable int value that is managed by the application preferences. Changes to this value will be saved to application storage and when the app starts the previous values will be read.

Since: 2.0

func NewInt 

func NewInt() Int

NewInt returns a bindable int value that is managed internally.

Since: 2.0

func StringToInt 

func StringToInt(str String) Int

StringToInt creates a binding that connects a String data item to a Int. Changes to the String will be parsed and pushed to the Int if the parse was successful, and setting the Int update the String binding.

Since: 2.0

func StringToIntWithFormat 

func StringToIntWithFormat(str String, format string) Int

StringToIntWithFormat creates a binding that connects a String data item to a Int and is presented using the specified format. Changes to the Int will be parsed and if the format matches and the parse is successful it will be pushed to the String. Setting the Int will push a formatted value into the String.

Since: 2.0

type IntList 

type IntList interface {
	DataList

	Append(int) error
	Get() ([]int, error)
	GetValue(int) (int, error)
	Prepend(int) error
	Set([]int) error
	SetValue(int, int) error
}

IntList supports binding a list of int values.

Since: 2.0

func NewIntList 

func NewIntList() IntList

NewIntList returns a bindable list of int values.

Since: 2.0

type Rune 

type Rune interface {
	DataItem
	Get() (rune, error)
	Set(rune) error
}

Rune supports binding a rune value.

Since: 2.0

func NewRune 

func NewRune() Rune

NewRune returns a bindable rune value that is managed internally.

Since: 2.0

type RuneList 

type RuneList interface {
	DataList

	Append(rune) error
	Get() ([]rune, error)
	GetValue(int) (rune, error)
	Prepend(rune) error
	Set([]rune) error
	SetValue(int, rune) error
}

RuneList supports binding a list of rune values.

Since: 2.0

func NewRuneList 

func NewRuneList() RuneList

NewRuneList returns a bindable list of rune values.

Since: 2.0

type String 

type String interface {
	DataItem
	Get() (string, error)
	Set(string) error
}

String supports binding a string value.

Since: 2.0

func BindPreferenceString 

func BindPreferenceString(key string, p fyne.Preferences) String

BindPreferenceString returns a bindable string value that is managed by the application preferences. Changes to this value will be saved to application storage and when the app starts the previous values will be read.

Since: 2.0

func BoolToString 

func BoolToString(v Bool) String

BoolToString creates a binding that connects a Bool data item to a String. Changes to the Bool will be pushed to the String and setting the string will parse and set the Bool if the parse was successful.

Since: 2.0

func BoolToStringWithFormat 

func BoolToStringWithFormat(v Bool, format string) String

BoolToStringWithFormat creates a binding that connects a Bool data item to a String and is presented using the specified format. Changes to the Bool will be pushed to the String and setting the string will parse and set the Bool if the string matches the format and its parse was successful.

Since: 2.0

func FloatToString 

func FloatToString(v Float) String

FloatToString creates a binding that connects a Float data item to a String. Changes to the Float will be pushed to the String and setting the string will parse and set the Float if the parse was successful.

Since: 2.0

func FloatToStringWithFormat 

func FloatToStringWithFormat(v Float, format string) String

FloatToStringWithFormat creates a binding that connects a Float data item to a String and is presented using the specified format. Changes to the Float will be pushed to the String and setting the string will parse and set the Float if the string matches the format and its parse was successful.

Since: 2.0

func IntToString 

func IntToString(v Int) String

IntToString creates a binding that connects a Int data item to a String. Changes to the Int will be pushed to the String and setting the string will parse and set the Int if the parse was successful.

Since: 2.0

func IntToStringWithFormat 

func IntToStringWithFormat(v Int, format string) String

IntToStringWithFormat creates a binding that connects a Int data item to a String and is presented using the specified format. Changes to the Int will be pushed to the String and setting the string will parse and set the Int if the string matches the format and its parse was successful.

Since: 2.0

func NewString 

func NewString() String

NewString returns a bindable string value that is managed internally.

Since: 2.0

type StringList 

type StringList interface {
	DataList

	Append(string) error
	Get() ([]string, error)
	GetValue(int) (string, error)
	Prepend(string) error
	Set([]string) error
	SetValue(int, string) error
}

StringList supports binding a list of string values.

Since: 2.0

func NewStringList 

func NewStringList() StringList

NewStringList returns a bindable list of string values.

Since: 2.0

type Struct 

type Struct interface {
	DataMap
	GetValue(string) (interface{}, error)
	SetValue(string, interface{}) error
	Reload() error
}

Struct is the base interface for a bound struct type.

Since: 2.0

func BindStruct 

func BindStruct(i interface{}) Struct

BindStruct creates a new map binding of string to interface{} using the struct passed as data. The key for each item is a string representation of each exported field with the value set as an interface{}. Only exported fields are included.

Since: 2.0

type Untyped 

type Untyped interface {
	DataItem
	// contains filtered or unexported methods
}

Untyped id used tpo represent binding an interface{} value.

Since: 2.0

type UntypedMap 

type UntypedMap interface {
	DataMap
	Delete(string)
	Get() (map[string]interface{}, error)
	GetValue(string) (interface{}, error)
	Set(map[string]interface{}) error
	SetValue(string, interface{}) error
}

UntypedMap is a map data binding with all values Untyped (interface{}).

Since: 2.0

func NewUntypedMap 

func NewUntypedMap() UntypedMap

NewUntypedMap creates a new, empty map binding of string to interface{}.

Since: 2.0

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