Files
emacs/lisp/emacs-application-framework/app/mindmap/buffer.py
2022-01-04 15:21:47 +01:00

309 lines
12 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, QEvent, QPointF, Qt
from PyQt5.QtWidgets import QApplication
from PyQt5.QtGui import QColor, QMouseEvent
from core.webengine import BrowserBuffer
from core.utils import touch, string_to_base64, interactive, eval_in_emacs, message_to_emacs, get_emacs_vars, PostGui
from html import escape, unescape
import os
import base64
import time
class AppBuffer(BrowserBuffer):
def __init__(self, buffer_id, url, arguments):
BrowserBuffer.__init__(self, buffer_id, url, arguments, False)
self.url = url
index_file = os.path.join(os.path.dirname(__file__), "index.html")
self.buffer_widget.setUrl(QUrl.fromLocalFile(index_file))
self.cut_node_id = None
(self.mindmap_edit_mode, self.mindmap_save_path) = get_emacs_vars(["eaf-mindmap-edit-mode", "eaf-mindmap-save-path"])
edit_mode = "true" if self.mindmap_edit_mode else "false"
for method_name in ["add_sub_node", "add_brother_node", "add_middle_node"]:
self.build_js_method(method_name, True, js_kwargs={"inline": edit_mode})
for method_name in ["remove_node", "remove_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", "toggle_node_selection", "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", "toggle_node_selection", "save_screenshot"]:
self.build_insert_or_do(method_name)
self.build_all_methods(self)
self.buffer_widget.loadFinished.connect(lambda _: self.initialize())
def resize_view(self):
self.buffer_widget.eval_js("relayout();")
def initialize(self):
self.init_file()
# The .jsmind-inner element is move right and bottom 30px,
# so we must use a point greater than (30, 30), ex (100, 100).
self.focus_widget(QMouseEvent(QEvent.MouseButtonPress, QPointF(100, 100), Qt.LeftButton, Qt.LeftButton, Qt.NoModifier))
def init_file(self):
self.url = os.path.expanduser(self.url)
if os.path.exists(self.url):
with open(self.url, "r") as f:
_, ext = os.path.splitext(self.url)
is_freemind = "true" if ext == ".mm" else "false"
self.buffer_widget.eval_js("open_file('{}', {});".format(string_to_base64(f.read()), is_freemind))
else:
self.buffer_widget.eval_js("init_root_node();")
QTimer.singleShot(200, lambda: self.buffer_widget.eval_js("select_root_node();"))
self.buffer_widget.eval_js("init_background('{}');".format(self.theme_background_color))
self.change_title(self.get_title())
def build_js_method(self, method_name, auto_save=False, js_kwargs=None):
js_kwargs = js_kwargs or {}
js_func_args = ", ".join('{}={}'.format(k, v) for k, v in js_kwargs.items())
def _do ():
self.buffer_widget.eval_js("{}({});".format(method_name, js_func_args))
if auto_save:
self.save_file(False)
setattr(self, method_name, _do)
@interactive
def refresh_page(self):
self.url = os.path.expanduser(self.url)
if os.path.exists(self.url):
with open(self.url, "r") as f:
self.buffer_widget.eval_js("refresh('{}');".format(string_to_base64(f.read())))
self.buffer_widget.eval_js("init_background('{}');".format(self.theme_background_color))
self.change_title(self.get_title())
@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();")
eval_in_emacs('kill-new', [node_topic])
message_to_emacs("Copy: {}".format(node_topic))
@interactive(insert_or_do=True)
def paste_node_topic(self):
text = self.get_clipboard_text()
if text.strip() != "":
self.buffer_widget.eval_js("update_node_topic('{}');".format(text))
message_to_emacs("Paste: {}".format(text))
self.save_file(False)
else:
message_to_emacs("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":
message_to_emacs("Root node not allowed cut.")
else:
message_to_emacs("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)
message_to_emacs("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",
unescape(self.buffer_widget.execute_js("get_node_topic();")))
def handle_update_node_topic(self, topic):
self.buffer_widget.eval_js("update_node_topic('{}');".format(escape(topic)))
self.change_title(self.get_title())
self.save_file(False)
def handle_input_response(self, callback_tag, result_content):
if callback_tag == "update_node_topic":
self.handle_update_node_topic(str(result_content))
elif callback_tag == "change_node_background":
print(str(result_content))
self.buffer_widget.eval_js("change_node_background('{}');".format(str(result_content)))
elif callback_tag == "change_background_color":
self.buffer_widget.eval_js("change_background_color('{}');".format(str(result_content)))
elif callback_tag == "change_text_color":
self.buffer_widget.eval_js("change_text_color('{}');".format(str(result_content)))
def add_multiple_sub_nodes(self):
node_id = self.buffer_widget.execute_js("_jm.get_selected_node();")
if node_id != None:
eval_in_emacs('eaf--add-multiple-sub-nodes', [self.buffer_id])
else:
message_to_emacs("No selected node.")
def add_multiple_brother_nodes(self):
node_id = self.buffer_widget.execute_js("_jm.get_selected_node();")
if node_id == None:
message_to_emacs("No selected node.")
elif not self.buffer_widget.execute_js("_jm.get_selected_node().parent;"):
message_to_emacs("No parent node for selected node.")
else:
eval_in_emacs('eaf--add-multiple-brother-nodes', [self.buffer_id])
def add_multiple_middle_nodes(self):
node_id = self.buffer_widget.execute_js("_jm.get_selected_node();")
if node_id == None:
message_to_emacs("No selected node.")
elif not self.buffer_widget.execute_js("_jm.get_selected_node().parent;"):
message_to_emacs("No parent node for selected node.")
else:
eval_in_emacs('eaf--add-multiple-middle-nodes', [self.buffer_id])
@interactive
def add_texted_sub_node(self,text):
self.buffer_widget.eval_js("add_texted_sub_node('{}');".format(str(text)))
@interactive
def add_texted_brother_node(self,text):
self.buffer_widget.eval_js("add_texted_brother_node('{}');".format(str(text)))
@interactive
def add_texted_middle_node(self,text):
self.buffer_widget.eval_js("add_texted_middle_node('{}');".format(str(text)))
def is_focus(self):
return self.buffer_widget.execute_js("node_is_focus();")
def get_title(self):
return os.path.basename(self.url) or self.get_root_node_topic()
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()
if self.should_skip_download_item(download_item) or not download_data.startswith("data:image/"):
return
# 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.mindmap_save_path), self.get_root_node_topic().replace(" ", "_") + time.strftime("_%Y%m%d_%H%M%S", time.localtime(int(time.time()))) + "." + 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")))
message_to_emacs("Save image: " + image_path)
@interactive(insert_or_do=True)
def save_file(self, notify=True):
file_path = self.get_save_path("emm")
with open(file_path, "w") as f:
f.write(self.buffer_widget.execute_js("save_file();"))
if notify:
message_to_emacs("Save file: " + file_path)
@interactive(insert_or_do=True)
def save_org_file(self):
file_path = self.get_save_path("org")
touch(file_path)
eval_in_emacs('eaf--export-org-json', [self.buffer_widget.execute_js("save_file();"), file_path])
message_to_emacs("Save org file: " + file_path)
@interactive(insert_or_do=True)
def save_freemind_file(self, notify=True):
file_path = self.get_save_path("mm")
with open(file_path, "w") as f:
f.write(self.buffer_widget.execute_js("save_freemind_file();"))
if notify:
message_to_emacs("Save freemind file: " + file_path)
def dark_mode_is_enabled(self):
''' Return bool of whether dark mode is enabled.'''
(self.mindmap_dark_mode) = get_emacs_vars(["eaf-mindmap-dark-mode"])
return (self.mindmap_dark_mode == "force" or \
self.mindmap_dark_mode == True or \
(self.mindmap_dark_mode == "follow" and \
self.theme_mode == "dark"))
@PostGui()
def update_multiple_sub_nodes(self, new_text):
''' Update multiplt sub nodes.'''
for line in str(new_text).split("\n"):
self.add_texted_sub_node(line)
@PostGui()
def update_multiple_brother_nodes(self, new_text):
''' Update multiplt brother nodes.'''
for line in str(new_text).split("\n"):
self.add_texted_brother_node(line)
@PostGui()
def update_multiple_middle_nodes(self, new_text):
''' Update multiplt middle nodes.'''
for line in str(new_text).split("\n"):
self.add_texted_middle_node(line)