from datetime import datetime as dt
def remove_class(element, class_name):
element.element.classList.remove(class_name)
def add_class(element, class_name):
element.element.classList.add(class_name)
tasks = []
# define the task template that will be use to render new templates to the page
task_template = Element("task-template").select(".task", from_content=True)
task_list = Element("list-tasks-container")
new_task_content = Element("new-task-content")
def add_task(*ags, **kws):
# ignore empty task
if not new_task_content.element.value:
return None
# create task
task_id = f"task-{len(tasks)}"
task = {
"id": task_id,
"content": new_task_content.element.value,
"done": False,
"created_at": dt.now(),
}
tasks.append(task)
# add the task element to the page as new node in the list by cloning from a
# template
task_html = task_template.clone(task_id, to=task_list)
task_html_content = task_html.select("p")
task_html_content.element.innerText = task["content"]
task_html_check = task_html.select("input")
task_list.element.appendChild(task_html.element)
def check_task(evt=None):
task["done"] = not task["done"]
if task["done"]:
add_class(task_html_content, "line-through")
else:
remove_class(task_html_content, "line-through")
new_task_content.clear()
task_html_check.element.onclick = check_task
def add_task_event(e):
if e.key == "Enter":
add_task()
new_task_content.element.onkeypress = add_task_event