Files
emacs/lisp/emacs-application-framework/app/mindmap/buffer.py
2020-12-05 21:29:49 +01:00

205 lines
8.2 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (C) 2018 Andy Stewart
#
# Author: Andy Stewart <lazycat.manatee@gmail.com>
# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from PyQt5 import QtCore
from PyQt5.QtCore import QUrl, QTimer
from PyQt5.QtWidgets import QApplication
from PyQt5.QtGui import QColor
from core.browser import BrowserBuffer
from core.utils import touch, string_to_base64, interactive
import os
import base64
class AppBuffer(BrowserBuffer):
export_org_json = QtCore.pyqtSignal(str, str)
def __init__(self, buffer_id, url, config_dir, arguments, emacs_var_dict, module_path):
BrowserBuffer.__init__(self, buffer_id, url, config_dir, arguments, emacs_var_dict, module_path, False)
self.url = url
index_file = "file://" + (os.path.join(os.path.dirname(__file__), "index.html"))
self.buffer_widget.setUrl(QUrl(index_file))
self.cut_node_id = None
for method_name in ["add_sub_node", "add_brother_node", "remove_node", "remove_middle_node", "add_middle_node", "update_node_topic_inline"]:
self.build_js_method(method_name, True)
for method_name in ["zoom_in", "zoom_out", "zoom_reset",
"select_up_node", "select_down_node", "select_left_node", "select_right_node",
"toggle_node", "save_screenshot"]:
self.build_js_method(method_name)
for method_name in ["zoom_in", "zoom_out", "zoom_reset", "remove_node",
"remove_middle_node", "add_middle_node", "refresh_page",
"select_up_node", "select_down_node", "select_left_node", "select_right_node",
"toggle_node", "save_screenshot"]:
self.build_insert_or_do(method_name)
self.build_all_methods(self)
QTimer.singleShot(500, self.init_file)
def resize_view(self):
self.buffer_widget.eval_js("relayout();")
def init_file(self):
self.url = os.path.expanduser(self.url)
if os.path.exists(self.url):
with open(self.url, "r") as f:
self.buffer_widget.execute_js("open_file('{}');".format(string_to_base64(f.read())))
else:
self.buffer_widget.eval_js("init_root_node();")
color = "#FFFFFF"
if self.emacs_var_dict["eaf-mindmap-dark-mode"] == "true" or \
(self.emacs_var_dict["eaf-mindmap-dark-mode"] == "" and self.emacs_var_dict["eaf-emacs-theme-mode"] == "dark"):
color = "#242525"
self.buffer_widget.eval_js("init_background('{}');".format(color))
self.change_title(self.get_root_node_topic())
def build_js_method(self, method_name, auto_save=False):
def _do ():
self.buffer_widget.eval_js("{}();".format(method_name))
if auto_save:
self.save_file(False)
setattr(self, method_name, _do)
@interactive(insert_or_do=True)
def change_background_color(self):
self.send_input_message("Change node background color(Input color): ", "change_background_color")
@interactive(insert_or_do=True)
def change_text_color(self):
self.send_input_message("Change node text color(Input color): ", "change_text_color")
@interactive(insert_or_do=True)
def copy_node_topic(self):
node_topic = self.buffer_widget.execute_js("get_node_topic();")
self.eval_in_emacs.emit('''(kill-new "{}")'''.format(node_topic))
self.message_to_emacs.emit("Copy: {}".format(node_topic))
@interactive(insert_or_do=True)
def paste_node_topic(self):
text = QApplication.clipboard().text()
if text.strip() != "":
self.buffer_widget.eval_js("update_node_topic('{}');".format(text))
self.message_to_emacs.emit("Paste: {}".format(text))
self.save_file(False)
else:
self.message_to_emacs.emit("Nothing in clipboard, can't paste.")
@interactive(insert_or_do=True)
def cut_node_tree(self):
self.cut_node_id = self.buffer_widget.execute_js("get_selected_nodeid();")
if self.cut_node_id:
if self.cut_node_id != "root":
self.message_to_emacs.emit("Root node not allowed cut.")
else:
self.message_to_emacs.emit("Cut node tree: {}".format(self.cut_node_id))
@interactive(insert_or_do=True)
def paste_node_tree(self):
if self.cut_node_id:
self.buffer_widget.eval_js("paste_node_tree('{}');".format(self.cut_node_id))
self.save_file(False)
self.message_to_emacs.emit("Paste node tree: {}".format(self.cut_node_id))
@interactive(insert_or_do=True)
def change_node_background(self):
self.send_input_message("Change node background: ", "change_node_background", "file")
@interactive(insert_or_do=True)
def update_node_topic(self):
self.send_input_message(
"Update topic: ",
"update_node_topic",
"string",
self.buffer_widget.execute_js("get_node_topic();"))
def handle_update_node_topic(self, topic):
self.buffer_widget.eval_js("update_node_topic('{}');".format(topic))
self.change_title(self.get_root_node_topic())
self.save_file(False)
def handle_input_message(self, result_type, result_content):
if result_type == "update_node_topic":
self.handle_update_node_topic(str(result_content))
elif result_type == "change_node_background":
print(str(result_content))
self.buffer_widget.eval_js("change_node_background('{}');".format(str(result_content)))
elif result_type == "change_background_color":
self.buffer_widget.eval_js("change_background_color('{}');".format(str(result_content)))
elif result_type == "change_text_color":
self.buffer_widget.eval_js("change_text_color('{}');".format(str(result_content)))
def is_focus(self):
return self.buffer_widget.execute_js("node_is_focus();")
def get_root_node_topic(self):
return self.buffer_widget.execute_js("get_root_node_topic();")
def handle_download_request(self, download_item):
download_data = download_item.url().toString()
# Note:
# Set some delay to make get_root_node_topic works expect.
# get_root_node_topic will return None if execute immediately.
QTimer.singleShot(200, lambda : self.save_screenshot_data(download_data))
def get_save_path(self, extension_name):
if self.url.strip() == "":
return os.path.join(os.path.expanduser(self.emacs_var_dict["eaf-mindmap-save-path"]), self.get_root_node_topic() + "." + extension_name)
else:
return os.path.splitext(self.url)[0] + "." + extension_name
def save_screenshot_data(self, download_data):
image_path = self.get_save_path("png")
touch(image_path)
with open(image_path, "wb") as f:
f.write(base64.decodestring(download_data.split("data:image/png;base64,")[1].encode("utf-8")))
self.message_to_emacs.emit("Save image: " + image_path)
@interactive(insert_or_do=True)
def save_file(self, notify=True):
file_path = self.get_save_path("emm")
touch(file_path)
with open(file_path, "w") as f:
f.write(self.buffer_widget.execute_js("save_file();"))
if notify:
self.message_to_emacs.emit("Save file: " + file_path)
@interactive(insert_or_do=True)
def save_org_file(self):
file_path = self.get_save_path("org")
touch(file_path)
self.export_org_json.emit(self.buffer_widget.execute_js("save_file();"), file_path)
self.message_to_emacs.emit("Save org file: " + file_path)