Source code for QuteChartjs.charts

from typing import Any, Callable, Dict

from property_manager import cached_property

from QuteChartjs.common import DataNode
from QuteChartjs.core import RootNode
from QuteChartjs.internals import QWebEnginePage, QUuid


class ChartjsNode(RootNode):
    def __init__(self, id_: str, type_: str, page: "QWebEnginePage") -> None:
        super().__init__(f"chart_{QUuid.createUuid().toString(QUuid.Id128)}")
        self._id = id_
        self._type = type_
        self._page = page
        self._create_chart()

    def _create_chart(self):
        script = """
        var ctx = document.getElementById("{{id}}").getContext('2d');
        var {{chart}} = new Chart(ctx, {
            type: "{{type}}"
        });"""
        self.execute(script, kwargs=dict(id=self.id, type=self.type))

    @property
    def id(self) -> str:
        return self._id

    @property
    def type(self) -> str:
        return self._type

    @cached_property
    def data(self) -> "DataNode":
        return DataNode(self)

    def execute(
        self,
        script: str,
        *,
        callback: Callable[[Any], None] = None,
        kwargs: Dict[str, Any] = None,
        synchronous: bool = False,
    ) -> None:
        kwargs = kwargs or {}
        kwargs["chart"] = self.fullname()
        super().execute(
            script, callback=callback, kwargs=kwargs, synchronous=synchronous
        )