build method
Implementation
@override
Widget build(final BuildContext context, final TreeState state,
final WidgetState nodeState) {
/// Get the condition type
final condition = conditionType.value;
/// Get the first firstValue to compare
final firstValue = firstValueToCompare.get(
deviceType: state.deviceType,
forPlay: state.forPlay,
context: context,
loop: nodeState.loop,
);
/// Get the second firstValue to compare
final secondValue = secondValueToCompare.get(
deviceType: state.deviceType,
forPlay: state.forPlay,
context: context,
loop: nodeState.loop,
);
/// If condition is equal
/// Example: If the firstValue is equal to secondValue
if (condition == ConditionType.equal) {
/// If the values are equal
if (firstValue == secondValue) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the values are not equal
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is not equal
/// Example: If the firstValue is not equal to secondValue
} else if (condition == ConditionType.notEqual) {
/// If the values are not equal
if (firstValue != secondValue) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the values are equal
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is null
/// The firstValue is null if the firstValue is equal to 'null'
/// Example: If the firstValue is null
} else if (condition == ConditionType.isNull) {
/// If the firstValue is null
/// The firstValue is null if the firstValue is equal to 'null'
/// Example: If the firstValue is null
if (firstValue == 'null') {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is not null
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is not null
} else if (condition == ConditionType.notNull) {
/// If the firstValue is not null
/// The firstValue is not null if the firstValue is not equal to 'null'
/// Example: If the firstValue is 10
if (firstValue != 'null') {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is null
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is greater than
} else if (condition == ConditionType.greaterThan) {
/// If the firstValue is greater than the secondValue
/// The double.tryParse is used to convert the string to a double
/// Example: If the firstValue is 10 and the secondValue is 9
/// The firstValue is greater than the secondValue
if ((double.tryParse(firstValue) ?? 0) >
(double.tryParse(secondValue) ?? 0)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is not greater than the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is greater or equal than
} else if (condition == ConditionType.greaterOrEqualThan) {
/// If the firstValue is greater or equal than the secondValue
/// The double.tryParse is used to convert the string to a double
/// Example: If the firstValue is 10 and the secondValue is 10
/// The firstValue is greater or equal than the secondValue
/// So the first child will be returned
if ((double.tryParse(firstValue) ?? 0) >=
(double.tryParse(secondValue) ?? 0)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is not greater or equal than the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is less than
} else if (condition == ConditionType.lessThan) {
/// If the firstValue is less than the secondValue
/// The double.tryParse is used to convert the string to a double
/// Example: If the firstValue is 5 and the secondValue is 10
/// The firstValue is less than the secondValue
/// So the first child will be returned
if ((double.tryParse(firstValue) ?? 0) <
(double.tryParse(secondValue) ?? 0)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is not less than the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is less or equal than
/// Example: If the firstValue is 5 and the secondValue is 5
} else if (condition == ConditionType.lessOrEqualThan) {
/// If the firstValue is less or equal than the secondValue
if ((double.tryParse(firstValue) ?? 0) <=
(double.tryParse(secondValue) ?? 0)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue is not less or equal than the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is contains
/// Example: If the firstValue is "Hello World" and the secondValue is "World"
} else if (condition == ConditionType.contains) {
/// If the firstValue contains the secondValue
if (firstValue.contains(secondValue)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue does not contain the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is starts with
/// Example: If the firstValue is "Hello World" and the secondValue is "Hello"
} else if (condition == ConditionType.startsWith) {
/// If the firstValue starts with the secondValue
if (firstValue.startsWith(secondValue)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue does not start with the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
/// If condition is ends with
/// Example: If the firstValue is "Hello World" and the secondValue is "World"
} else if (condition == ConditionType.endsWith) {
/// If the firstValue ends with the secondValue
if (firstValue.endsWith(secondValue)) {
return children.isNotEmpty
? children.first.toWidget(
context: context,
state: nodeState.copyWith(node: children.first))
: const SizedBox();
/// If the firstValue does not end with the secondValue
} else {
return children.isNotEmpty
? children.length > 1
? children.last.toWidget(
context: context,
state: nodeState.copyWith(node: children.last))
: const SizedBox()
: const SizedBox();
}
}
return const SizedBox();
}
