PluginProjectPyramid.py

# -*- coding: utf-8 -*-

# Copyright (c) 2012 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing the Pyramid project plugin.
"""

import os
import glob
import fnmatch

from PyQt4.QtCore import QCoreApplication, QObject, QTranslator
##from PyQt4.QtGui import QApplication

from E5Gui.E5Application import e5App

import Preferences

from Globals import isWindowsPlatform, isMacPlatform

from Project.ProjectBrowser import SourcesBrowserFlag, FormsBrowserFlag, \
    TranslationsBrowserFlag, OthersBrowserFlag

from ProjectPyramid.Project import Project

# Start-of-Header
name = "Pyramid Project Plugin"
author = "Detlev Offenbach <detlev@die-offenbachs.de>"
autoactivate = True
deactivateable = True
version = "0.1.0"
className = "ProjectPyramidPlugin"
packageName = "ProjectPyramid"
shortDescription = "Project support for Pyramid projects."
longDescription = """This plugin implements project support for Pyramid projects."""
needsRestart = False
pyqtApi = 2
# End-of-Header

error = ""

pyramidPluginObject = None

def createPyramidPage(configDlg):
    """
    Module function to create the Pyramid configuration page.
    
    @return reference to the configuration page
    """
    global pyramidPluginObject
    from ProjectPyramid.ConfigurationPage.PyramidPage import PyramidPage
    page = PyramidPage(pyramidPluginObject)
    return page
    
def getConfigData():
    """
    Module function returning data as required by the configuration dialog.
    
    @return dictionary containing the relevant data
    """
    if e5App().getObject("UserInterface").versionIsNewer('5.0.99', '20120101'):
        return {
            "pyramidPage" : \
                [QCoreApplication.translate("ProjectPyramidPlugin", "Pyramid"), 
                 os.path.join("ProjectPyramid", "icons", 
                              "pyramid.png"),
                 createPyramidPage, None, None],
        }
    else:
        return {}

def apiFiles(language):
    """
    Module function to return the API files made available by this plugin.
    
    @return list of API filenames (list of string)
    """
    if language in ["Python3",  "Python2"]:
        apisDir = \
            os.path.join(os.path.dirname(__file__), "ProjectPyramid", "APIs")
        apis = glob.glob(os.path.join(apisDir, '*.api'))
    else:
        apis = []
    return apis

def prepareUninstall():
    """
    Module function to prepare for an uninstallation.
    """
    pyramid = ProjectPyramidPlugin(None)
    pyramid.prepareUninstall()


class ProjectPyramidPlugin(QObject):
    """
    Class implementing the Pyramid project plugin.
    """
    lexerAssociations = {
        "*.mako": "Pygments|HTML+Mako", 
        "*.pt": "Pygments|HTML+Genshi", 
        "*.txt": "Pygments|Genshi", 
        "*.html": "Pygments|HTML+Genshi", 
        "*.htm": "Pygments|HTML+Genshi", 
    }
    
    def __init__(self, ui):
        """
        Constructor
        
        @param ui reference to the user interface object (UI.UserInterface)
        """
        QObject.__init__(self, ui)
        self.__ui = ui
        self.__initialize()
        
        # TODO: get rid of the consoles
        self.__defaults = {
            "VirtualEnvironmentPy2" : "", 
            "VirtualEnvironmentPy3" : "", 
            "Python2ConsoleType": "python", 
            "Python3ConsoleType": "python", 
            "ServerPort": 0, 
            "PyramidDocUrl": "http://docs.pylonsproject.org/en/latest/docs/pyramid.html", 
        }
        if isWindowsPlatform():
            self.__defaults["ConsoleCommandNoClose"] = "cmd.exe /k"
            self.__defaults["ConsoleCommand"] = "cmd.exe /c"
        elif isMacPlatform():
            self.__defaults["ConsoleCommandNoClose"] = "xterm -hold -e"
            self.__defaults["ConsoleCommand"] = "xterm -e"
        else:
            self.__defaults["ConsoleCommandNoClose"] = "konsole --noclose -e"
            self.__defaults["ConsoleCommand"] = "konsole -e"
        
        self.__translator = None
        self.__loadTranslator()
    
    def __initialize(self):
        """
        Private slot to (re)initialize the plugin.
        """
        self.__object = None
        
        self.__mainAct = None
        self.__mainMenu = None
        
        self.__e5project = e5App().getObject("Project")
    
    def __checkVersions(self):
        """
        Private function to check that the eric5 version is ok.
        
        @return flag indicating version is ok (boolean)
        """
        global error
        
        if self.__ui.versionIsNewer('5.0.99', '20120101'):
            error = ""
        else:
            error = self.trUtf8("eric5 version is too old, {0}, {1} or newer needed.")\
                .format("5.1.0", "20120101")
            return False
        
        return True
    
    def activate(self):
        """
        Public method to activate this plugin.
        
        @return tuple of None and activation status (boolean)
        """
        if not self.__checkVersions():
            return None, False
        
        global pyramidPluginObject
        pyramidPluginObject = self
        
        self.__object = Project(self, self.__ui)
        self.__object.initActions()
        e5App().registerPluginObject("ProjectPyramid", self.__object)
        
        self.__mainMenu = self.__object.initMenu()
        
        self.__e5project.registerProjectType("Pyramid", self.trUtf8("Pyramid"), 
            self.fileTypesCallback, 
            lexerAssociationCallback = self.lexerAssociationCallback, 
            binaryTranslationsCallback = self.binaryTranslationsCallback)
        Preferences.setProjectBrowserFlagsDefault("Pyramid", 
            SourcesBrowserFlag | \
            FormsBrowserFlag | \
            TranslationsBrowserFlag | \
            OthersBrowserFlag,
        )
        
        if self.__e5project.isOpen():
            self.__projectOpened()
            self.__object.projectOpenedHooks()
        
        e5App().getObject("Project").projectOpened.connect(self.__projectOpened)
        e5App().getObject("Project").projectClosed.connect(self.__projectClosed)
        e5App().getObject("Project").newProject.connect(self.__projectOpened)
        
        e5App().getObject("Project").projectOpenedHooks.connect(
            self.__object.projectOpenedHooks)
        e5App().getObject("Project").projectClosedHooks.connect(
                     self.__object.projectClosedHooks)
        e5App().getObject("Project").newProjectHooks.connect(
                     self.__object.projectOpenedHooks)
        
        return None, True
    
    def deactivate(self):
        """
        Public method to deactivate this plugin.
        """
        e5App().unregisterPluginObject("ProjectPyramid")
        
        e5App().getObject("Project").projectOpened.disconnect(self.__projectOpened)
        e5App().getObject("Project").projectClosed.disconnect(self.__projectClosed)
        e5App().getObject("Project").newProject.disconnect(self.__projectOpened)
        
        e5App().getObject("Project").projectOpenedHooks.disconnect(
            self.__object.projectOpenedHooks)
        e5App().getObject("Project").projectClosedHooks.disconnect(
            self.__object.projectClosedHooks)
        e5App().getObject("Project").newProjectHooks.disconnect(
            self.__object.projectOpenedHooks)
        
        self.__e5project.unregisterProjectType("Pyramid")
        
        self.__object.projectClosedHooks()
        self.__projectClosed()
        
        self.__initialize()
    
    def __loadTranslator(self):
        """
        Private method to load the translation file.
        """
        if self.__ui is not None:
            loc = self.__ui.getLocale()
            if loc and loc != "C":
                locale_dir = \
                    os.path.join(os.path.dirname(__file__), "ProjectPyramid", "i18n")
                translation = "pyramid_%s" % loc
                translator = QTranslator(None)
                loaded = translator.load(translation, locale_dir)
                if loaded:
                    self.__translator = translator
                    e5App().installTranslator(self.__translator)
                else:
                    print("Warning: translation file '{0}' could not be loaded.".format(
                        translation))
                    print("Using default.")
    
    def __projectOpened(self):
        """
        Private slot to handle the projectOpened signal.
        """
        if self.__e5project.getProjectType() == "Pyramid":
            projectAct = self.__ui.getMenuBarAction("project")
            actions = self.__ui.menuBar().actions()
            insertAct = actions[actions.index(projectAct) + 1]
            self.__mainAct = self.__ui.menuBar().insertMenu(insertAct, self.__mainMenu)
    
    def __projectClosed(self):
        """
        Private slot to handle the projectClosed signal.
        """
        if self.__mainAct is not None:
            self.__ui.menuBar().removeAction(self.__mainAct)
            self.__mainAct = None
            self.__object.projectClosed()
    
    def fileTypesCallback(self):
        """
        Public method get the filetype associations of the Pyramid project type.
        
        @return dictionary with file type associations
        """
        if self.__e5project.getProjectType() == "Pyramid":
            fileTypes = {
                "*.mako": "FORMS", 
                "*.mak": "FORMS", 
                "*.pt": "FORMS", 
                "*.html": "FORMS", 
                "*.htm": "FORMS", 
                "*.js": "SOURCES",
                "*.pot": "TRANSLATIONS", 
                "*.po": "TRANSLATIONS", 
                "*.mo": "TRANSLATIONS", 
            }
        else:
            fileTypes = {}
        return fileTypes
    
    def lexerAssociationCallback(self, filename):
        """
        Public method to get the lexer association of the Pyramid project type for
        a file.
        
        @param filename name of the file (string)
        @return name of the lexer (string) (Pygments lexers are prefixed with 'Pygments|')
        """
        for pattern, language in self.lexerAssociations.items():
            if fnmatch.fnmatch(filename, pattern):
                return language
        
        return ""
    
    def binaryTranslationsCallback(self, filename):
        """
        Public method to determine the filename of a compiled translation file
        given the translation source file.
        
        @param filename name of the translation source file (string)
        @return name of the binary translation file (string)
        """
        if filename.endswith(".po"):
            filename = filename.replace(".po", ".mo")
        return filename
    
    def getPreferences(self, key):
        """
        Public method to retrieve the various settings.
        
        @param key the key of the value to get
        @param prefClass preferences class used as the storage area
        @return the requested setting
        """
        if key == "ServerPort":
            return int(Preferences.Prefs.settings.value("Pyramid/" + key,
                self.__defaults[key]))
        else:
            return Preferences.Prefs.settings.value("Pyramid/" + key,
                self.__defaults[key])
    
    def setPreferences(self, key, value):
        """
        Public method to store the various settings.
        
        @param key the key of the setting to be set (string)
        @param value the value to be set
        @param prefClass preferences class used as the storage area
        """
        Preferences.Prefs.settings.setValue("Pyramid/" + key, value)
    
    def prepareUninstall(self):
        """
        Public method to prepare for an uninstallation.
        """
        Preferences.removeProjectBrowserFlags("Pyramid")
        Preferences.Prefs.settings.remove("Pyramid")