svgui/pyjs/lib/sys.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 29 Aug 2018 18:53:02 +0300
changeset 2301 5b8a7dd43f9f
parent 1879 4d81c3bcac82
permissions -rw-r--r--
Avoid usage of localized strings before initialization during import in many modules

This happens if import is done before i18n setup
(InstallLocalRessources()).
This affects PLCOpenEditor mostly. Beremiz IDE is free from this issue, but moving
initialization from import should make modules more robust.
Otherwise execution result depends on where and when import was done
and this is not a good thing.

Some modules (ConfigTreeNode, features, CodeFileEditor related
classes) still have this, but they are used only in Beremiz.
Most problems result in non-working internatialization.
In some cases (VariablePanel) there is backtrace, because localized
key is not found in non-localized dictionary.
# the platform name (PyV8, smjs, Mozilla, IE6, Opera, Safari etc.)
platform = ''  # to be updated by app, on compile

# a dictionary of module override names (platform-specific)
overrides = {}  # to be updated by app, on compile

# the remote path for loading modules
loadpath = None

stacktrace = None

appname = None


def setloadpath(lp):
    global loadpath
    loadpath = lp


def setappname(an):
    global appname
    appname = an


def getloadpath():
    return loadpath


def addoverride(module_name, path):
    overrides[module_name] = path


def addstack(linedebug):
    JS("""
        if (pyjslib.bool((sys.stacktrace === null))) {
            sys.stacktrace = new pyjslib.List([]);
        }
        sys.stacktrace.append(linedebug);
    """)


def popstack():
    JS("""
        sys.stacktrace.pop()
    """)


def printstack():
    JS("""
        var res = '';

        var __l = sys.stacktrace.__iter__();
        try {
            while (true) {
                var l = __l.next();
                res +=  ( l + '\\n' ) ;
            }
        } catch (e) {
            if (e != pyjslib.StopIteration) {
                throw e;
            }
        }

        return res;
    """)