diff -r 4e8b98454baa -r 800c432b34c8 eric7/WebBrowser/Tools/Scripts.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/WebBrowser/Tools/Scripts.py Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,470 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2016 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module containing function to generate JavaScript code.
+"""
+
+#
+# This code was ported from QupZilla.
+# Copyright (C) David Rosca <nowrep@gmail.com>
+#
+
+from PyQt5.QtCore import QUrlQuery, QUrl
+
+from .WebBrowserTools import getJavascript
+
+
+def setupWebChannel(worldId):
+ """
+ Function generating a script to setup the web channel.
+
+ @param worldId world ID for which to setup the channel
+ @type int
+ @return script to setup the web channel
+ @rtype str
+ """
+ source = """
+// ==UserScript==
+{0}
+// ==/UserScript==
+
+(function() {{
+ {1}
+
+ function registerExternal(e) {{
+ window.external = e;
+ if (window.external) {{
+ var event = document.createEvent('Event');
+ event.initEvent('_eric_external_created', true, true);
+ window._eric_external = true;
+ document.dispatchEvent(event);
+ }}
+ }}
+
+ if (self !== top) {{
+ if (top._eric_external)
+ registerExternal(top.external);
+ else
+ top.document.addEventListener(
+ '_eric_external_created', function() {{
+ registerExternal(top.external);
+ }});
+ return;
+ }}
+
+ function registerWebChannel() {{
+ try {{
+ new QWebChannel(qt.webChannelTransport, function(channel) {{
+ var external = channel.objects.eric_object;
+ external.extra = {{}};
+ for (var key in channel.objects) {{
+ if (key != 'eric_object' && key.startsWith('eric_')) {{
+ external.extra[key.substr(5)] = channel.objects[key];
+ }}
+ }}
+ registerExternal(external);
+ }});
+ }} catch (e) {{
+ setTimeout(registerWebChannel, 100);
+ }}
+ }}
+ registerWebChannel();
+
+}})()"""
+
+ from WebBrowser.WebBrowserPage import WebBrowserPage
+ match = (
+ "// @exclude eric:*"
+ if worldId == WebBrowserPage.SafeJsWorld else
+ "// @include eric:*"
+ )
+ return source.format(match, getJavascript("qwebchannel.js"))
+
+
+def setupWindowObject():
+ """
+ Function generating a script to setup window.object add-ons.
+
+ @return generated script
+ @rtype str
+ """
+ source = """
+(function() {
+ var external = {};
+ external.AddSearchProvider = function(url) {
+ window.location = 'eric:AddSearchProvider?url=' + url;
+ };
+ external.IsSearchProviderInstalled = function(url) {
+ console.warn('NOT IMPLEMENTED: IsSearchProviderInstalled()');
+ return false;
+ };
+ window.external = external;
+ window.print = function() {
+ window.location = 'eric:PrintPage';
+ };
+})()"""
+
+ return source
+
+
+def setStyleSheet(css):
+ """
+ Function generating a script to set a user style sheet.
+
+ @param css style sheet to be applied
+ @type str
+ @return script to set a user style sheet
+ @rtype str
+ """
+ source = """
+(function() {{
+ var css = document.createElement('style');
+ css.setAttribute('type', 'text/css');
+ css.appendChild(document.createTextNode('{0}'));
+ document.getElementsByTagName('head')[0].appendChild(css);
+}})()"""
+
+ style = css.replace("'", "\\'").replace("\n", "\\n")
+ return source.format(style)
+
+
+def getFormData(pos):
+ """
+ Function generating a script to extract data for a form element.
+
+ @param pos position to extract data at
+ @type QPoint
+ @return script to extract form data
+ @rtype str
+ """
+ source = """
+(function() {{
+ var e = document.elementFromPoint({0}, {1});
+ if (!e || e.tagName.toLowerCase() != 'input')
+ return;
+ var fe = e.parentElement;
+ while (fe) {{
+ if (fe.tagName.toLowerCase() != 'form')
+ break;
+ fe = fe.parentElement;
+ }}
+ if (!fe)
+ return;
+ var res = {{
+ method: fe.method.toLowerCase(),
+ action: fe.action,
+ inputName: e.name,
+ inputs: [],
+ }};
+ for (var i = 0; i < fe.length; ++i) {{
+ var input = fe.elements[i];
+ res.inputs.push([input.name, input.value]);
+ }}
+ return res;
+}})()"""
+ return source.format(pos.x(), pos.y())
+
+
+def getAllImages():
+ """
+ Function generating a script to extract all image tags of a web page.
+
+ @return script to extract image tags
+ @rtype str
+ """
+ source = """
+(function() {
+ var out = [];
+ var imgs = document.getElementsByTagName('img');
+ for (var i = 0; i < imgs.length; ++i) {
+ var e = imgs[i];
+ out.push({
+ src: e.src,
+ alt: e.alt
+ });
+ }
+ return out;
+})()"""
+ return source
+
+
+def getAllMetaAttributes():
+ """
+ Function generating a script to extract all meta attributes of a web page.
+
+ @return script to extract meta attributes
+ @rtype str
+ """
+ source = """
+(function() {
+ var out = [];
+ var meta = document.getElementsByTagName('meta');
+ for (var i = 0; i < meta.length; ++i) {
+ var e = meta[i];
+ out.push({
+ name: e.getAttribute('name'),
+ content: e.getAttribute('content'),
+ httpequiv: e.getAttribute('http-equiv'),
+ charset: e.getAttribute('charset')
+ });
+ }
+ return out;
+})()"""
+ return source
+
+
+def getOpenSearchLinks():
+ """
+ Function generating a script to extract all open search links.
+
+ @return script to extract all open serach links
+ @rtype str
+ """
+ source = """
+(function() {
+ var out = [];
+ var links = document.getElementsByTagName('link');
+ for (var i = 0; i < links.length; ++i) {
+ var e = links[i];
+ if (e.type == 'application/opensearchdescription+xml') {
+ out.push({
+ url: e.getAttribute('href'),
+ title: e.getAttribute('title')
+ });
+ }
+ }
+ return out;
+})()"""
+ return source
+
+
+def sendPostData(url, data):
+ """
+ Function generating a script to send Post data.
+
+ @param url URL to send the data to
+ @type QUrl
+ @param data data to be sent
+ @type QByteArray
+ @return script to send Post data
+ @rtype str
+ """
+ source = """
+(function() {{
+ var form = document.createElement('form');
+ form.setAttribute('method', 'POST');
+ form.setAttribute('action', '{0}');
+ var val;
+ {1}
+ form.submit();
+}})()"""
+
+ valueSource = """
+val = document.createElement('input');
+val.setAttribute('type', 'hidden');
+val.setAttribute('name', '{0}');
+val.setAttribute('value', '{1}');
+form.appendChild(val);"""
+
+ values = ""
+ query = QUrlQuery(data)
+ for name, value in query.queryItems(
+ QUrl.ComponentFormattingOption.FullyDecoded
+ ):
+ value = value.replace("'", "\\'")
+ name = name.replace("'", "\\'")
+ values += valueSource.format(name, value)
+
+ return source.format(url.toString(), values)
+
+
+def setupFormObserver():
+ """
+ Function generating a script to monitor a web form for user entries.
+
+ @return script to monitor a web page
+ @rtype str
+ """
+ source = """
+(function() {
+ function findUsername(inputs) {
+ var usernameNames = ['user', 'name', 'login'];
+ for (var i = 0; i < usernameNames.length; ++i) {
+ for (var j = 0; j < inputs.length; ++j)
+ if (inputs[j].type == 'text' &&
+ inputs[j].value.length &&
+ inputs[j].name.indexOf(usernameNames[i]) != -1)
+ return inputs[j].value;
+ }
+ for (var i = 0; i < inputs.length; ++i)
+ if (inputs[i].type == 'text' && inputs[i].value.length)
+ return inputs[i].value;
+ for (var i = 0; i < inputs.length; ++i)
+ if (inputs[i].type == 'email' && inputs[i].value.length)
+ return inputs[i].value;
+ return '';
+ }
+
+ function registerForm(form) {
+ form.addEventListener('submit', function() {
+ var form = this;
+ var data = '';
+ var password = '';
+ var inputs = form.getElementsByTagName('input');
+ for (var i = 0; i < inputs.length; ++i) {
+ var input = inputs[i];
+ var type = input.type.toLowerCase();
+ if (type != 'text' && type != 'password' &&
+ type != 'email')
+ continue;
+ if (!password && type == 'password')
+ password = input.value;
+ data += encodeURIComponent(input.name);
+ data += '=';
+ data += encodeURIComponent(input.value);
+ data += '&';
+ }
+ if (!password)
+ return;
+ data = data.substring(0, data.length - 1);
+ var url = window.location.href;
+ var username = findUsername(inputs);
+ external.passwordManager.formSubmitted(
+ url, username, password, data);
+ }, true);
+ }
+
+ for (var i = 0; i < document.forms.length; ++i)
+ registerForm(document.forms[i]);
+
+ var observer = new MutationObserver(function(mutations) {
+ for (var mutation of mutations)
+ for (var node of mutation.addedNodes)
+ if (node.tagName && node.tagName.toLowerCase() == 'form')
+ registerForm(node);
+ });
+ observer.observe(document.documentElement, {
+ childList: true, subtree: true
+ });
+
+})()"""
+ return source
+
+
+def completeFormData(data):
+ """
+ Function generating a script to fill in form data.
+
+ @param data data to be filled into the form
+ @type QByteArray
+ @return script to fill a form
+ @rtype str
+ """
+ source = """
+(function() {{
+ var data = '{0}'.split('&');
+ var inputs = document.getElementsByTagName('input');
+
+ for (var i = 0; i < data.length; ++i) {{
+ var pair = data[i].split('=');
+ if (pair.length != 2)
+ continue;
+ var key = decodeURIComponent(pair[0]);
+ var val = decodeURIComponent(pair[1]);
+ for (var j = 0; j < inputs.length; ++j) {{
+ var input = inputs[j];
+ var type = input.type.toLowerCase();
+ if (type != 'text' && type != 'password' &&
+ type != 'email')
+ continue;
+ if (input.name == key) {{
+ input.value = val;
+ input.dispatchEvent(new Event('change'));
+ }}
+ }}
+ }}
+
+}})()"""
+
+ data = bytes(data).decode("utf-8")
+ data = data.replace("'", "\\'")
+ return source.format(data)
+
+
+def setCss(css):
+ """
+ Function generating a script to set a given CSS style sheet.
+
+ @param css style sheet
+ @type str
+ @return script to set the style sheet
+ @rtype str
+ """
+ source = """
+(function() {{
+ var css = document.createElement('style');
+ css.setAttribute('type', 'text/css');
+ css.appendChild(document.createTextNode('{0}'));
+ document.getElementsByTagName('head')[0].appendChild(css);
+ }})()"""
+ style = css.replace("'", "\\'").replace("\n", "\\n")
+ return source.format(style)
+
+
+def scrollToAnchor(anchor):
+ """
+ Function generating script to scroll to a given anchor.
+
+ @param anchor name of the anchor to scroll to
+ @type str
+ @return script to set the style sheet
+ @rtype str
+ """
+ source = """
+(function() {{
+ var e = document.getElementById("{0}")
+ if (!e) {{
+ var els = document.querySelectorAll("[name='{0}']");
+ if (els.length)
+ e = els[0]
+ }}
+ if (e)
+ e.scrollIntoView()
+ }})()"""
+ return source.format(anchor)
+
+###########################################################################
+## scripts below are specific for eric
+###########################################################################
+
+
+def getFeedLinks():
+ """
+ Function generating a script to extract all RSS and Atom feed links.
+
+ @return script to extract all RSS and Atom feed links
+ @rtype str
+ """
+ source = """
+(function() {
+ var out = [];
+ var links = document.getElementsByTagName('link');
+ for (var i = 0; i < links.length; ++i) {
+ var e = links[i];
+ if ((e.rel == 'alternate') &&
+ ((e.type == 'application/atom+xml') ||
+ (e.type == 'application/rss+xml')
+ )
+ ) {
+ out.push({
+ url: e.getAttribute('href'),
+ title: e.getAttribute('title')
+ });
+ }
+ }
+ return out;
+})()"""
+ return source
