embed a graph editor into attribute editor in maya 2015 with xml attribute editor template

_.md

_launcher.mel

python("import AEaddGraphEditor");
// python("reload(AEaddGraphEditor)");

putenv MAYA_CUSTOM_TEMPLATE_PATH "/home/oglop/maya/2015-x64/scripts";
select -r ctrl_grp;
refreshCustomTemplate;
ShowAttributeEditorOrChannelBox;
ShowAttributeEditorOrChannelBox;

setLocalView "Custom" "ctrl_grp" 1;

AEaddGraphEditor.py

import maya.cmds as cmds
import maya.mel as mel
import maya.utils as mutils
import maya.OpenMayaUI as apiUI
from PyQt4 import QtGui, QtCore
import sip
import time
import sys

from PyQt4.QtCore import *
from PyQt4.QtGui import *

graphEditorPanel = "customGraphEditor"
graphEditorPanelWindow = '%sWindow' % graphEditorPanel
graphEditorGraphEd = '%sGraphEd' % graphEditorPanel

mel.eval('source showEditor.mel;')
paneLayoutName = None


def get_mel_global_float(var):
    return mel.eval('$temp_var_float=%s;' % var)


def toggle_auto_update_state(state=None):

    if state is None:
        mel.eval('showEditorSetListType("auto")')
    elif state:
        if not get_mel_global_float('$gAutoUpdateAttrEdFlag'):
            mel.eval('showEditorSetListType("auto")')
    else:
        if get_mel_global_float('$gAutoUpdateAttrEdFlag'):
            mel.eval('showEditorSetListType("auto")')


def toQtObject(mayaName):
    '''
    Given the name of a Maya UI element of any type,
    return the corresponding QWidget or QAction.
    If the object does not exist, returns None
    '''
    ptr = apiUI.MQtUtil.findControl(mayaName)
    if ptr is None:
        ptr = apiUI.MQtUtil.findLayout(mayaName)
    if ptr is None:
        ptr = apiUI.MQtUtil.findMenuItem(mayaName)
    if ptr is not None:
        return sip.wrapinstance(long(ptr), QtCore.QObject)


def reparent_graph_editor():
    print 'call reparent_graph_editor'
    global paneLayoutName

    if cmds.paneLayout(paneLayoutName, q=1, ex=1):
        try:
            cmds.scriptedPanel(graphEditorPanel, e=True, parent=paneLayoutName)
        except:
            print 'reparenting failed'
    else:
        mel.eval('$gAE-=1;')
        print 'pane not exists, passed'
        sys.exit()

# configure newly created graph editor


def configure_ui():
    print 'call configure_ui'
    qtObj = toQtObject(graphEditorPanel)
    print 'qtobj:', qtObj
    if qtObj:
        m = qtObj.findChild(QtGui.QMenuBar)
        m.hide()
        print m

        s = qtObj.findChild(QtGui.QSplitter)
        if s:
            s.setSizes([0, 100])
        else:
            print 'splitter not found'
            sys.exit()

    else:
        print 'qtobj not exists:', qtObj


def _del_window():
    if cmds.window(graphEditorPanelWindow, q=1, ex=1):
        print 'call deleteUI graphEditorPanelWindow'
        cmds.deleteUI(graphEditorPanelWindow)


def delayed_func(paneLayoutName):

    if cmds.layout(paneLayoutName, q=1, ex=1):
        cmds.scriptedPanel(
            graphEditorPanel, l='custom graph editor', type="graphEditor", p=paneLayoutName)

    else:
        print 'pane already gone'

    cmds.evalDeferred(lambda *x: configure_ui(), lp=1)

    cmds.evalDeferred(lambda *x: toggle_auto_update_state(state=False), lp=1)


def AEaddGraphEditorModule(plug, uiLabel, annot):
    global paneLayoutName

    if paneLayoutName is None or not cmds.layout(paneLayoutName, q=1, ex=1):
        print 'new pane created'
        paneLayoutName = cmds.paneLayout(h=300)

    if graphEditorPanel not in cmds.getPanel(scriptType='graphEditor'):
        # cmds.scriptedPanel(graphEditorPanel,l ='custom graph editor',type="graphEditor" , p = paneLayoutName)

        QtCore.QTimer.singleShot(
            500, lambda p=paneLayoutName, *x: delayed_func(p))
    else:
        cmds.evalDeferred(lambda *x: reparent_graph_editor(), lp=1)
        cmds.evalDeferred(lambda *x: configure_ui(), lp=1)

    # cmds.evalDeferred(lambda *x: _del_window(),lp=1)

    # cmds.evalDeferred(lambda *x: reparent_graph_editor(),lp=1)

    # cmds.evalDeferred(lambda *x: configure_ui(),lp=1)

    # cmds.evalDeferred(lambda *x: toggle_auto_update_state(state=False),lp=1)

    cmds.setParent(u=1)

AEtransform.ctrl_grpTemplate.xml

<?xml version='1.0' encoding='UTF-8'?>
<templates>
    <template name="AEtransform">
        <attribute name="frameExtension" type="maya.long">
            <label>Frame Extension</label>
        </attribute>
        <attribute name="enumAttr" type="maya.enum">
            <label>Enum Attr</label>
        </attribute>
        <attribute name="imageName" type="maya.string">
            <label>Image Name</label>
        </attribute>
        <attribute name="dummy" type="maya.void">
            <label>Anything you want</label>
            <description language="cb">py.AEaddGraphEditor.AEaddGraphEditorModule</description>
        </attribute>
    </template>
    <view name="Custom" template="AEtransform">
        <group name="common_properties">
            <property name="frameExtension"/>
            <property name="enumAttr"/>
            <property name="imageName"/>
        </group>
        <group name="my_curve_editor">
            <property name="dummy"/>
        </group>
    </view>
</templates>