python 2.7 - Setting different context menu actions for each layer type with PyQGIS

I want to set different actions(context menu) for vectors,rasters,etc .

class MyMenuProvider(QgsLayerTreeViewMenuProvider):
def __init__(self, view):
    QgsLayerTreeViewMenuProvider.__init__(self)
    self.view = view

  def createContextMenu(self):
    if not self.view.currentLayer():
      return None

    m = QMenu()
    m.addAction("Show Attribute Table", self.openAttributeTable)
    return m

  def openAttributeTable(self):
    #iface1.openFeatureForm(iface1.activeLayer(), feature, False)
    iface1.showAttributeTable(iface1.activeLayer())

then using it as

 view = iface1.layerTreeView()

 provider = MyMenuProvider(view)
 view.setMenuProvider(provider)

But this sets menu provider for all layers , I want to have different actions for different layers

Answer

You can always have a look at how QGIS does it to get an idea.

In your case, you can use a conditional expression to evaluate the layer type. If current layer is a vector you add certain actions, if not, you add others.

This is a basic example (see the createContextMenu function):

from qgis.core import QgsVectorLayer, QgsRasterLayer
from qgis.gui import QgsLayerTreeViewMenuProvider

from PyQt4.QtGui import QMenu

class MyMenuProvider(QgsLayerTreeViewMenuProvider):

  def __init__(self, view):
    QgsLayerTreeViewMenuProvider.__init__(self)
    self.view = view
    self.defaultActions = view.defaultActions()

  def createContextMenu(self):

    if not self.view.currentLayer():
      return None
    m = QMenu()
    m.addAction("Open layer properties", self.openLayerProperties)
    m.addSeparator()

    if type(self.view.currentLayer()) == QgsVectorLayer:
      m.addAction("Show Feature Count", self.featureCount)
      m.addAction("Another vector-specific action", self.vectorAction)
    elif type(self.view.currentLayer()) == QgsRasterLayer:

      m.addAction("Zoom 100%", self.zoom100)
      m.addAction("Another raster-specific action", self.rasterAction)

    return m

  def openLayerProperties(self):
    iface.showLayerProperties(self.view.currentLayer())

  def featureCount(self):
    self.defaultActions.actionShowFeatureCount().trigger()


  def vectorAction(self):
    pass

  def zoom100(self):
    iface.actionZoomActualSize().trigger()

  def rasterAction(self):
    pass


view = iface.layerTreeView()
provider = MyMenuProvider(view)
view.setMenuProvider(provider)

Which produces: