from pyjamas import Window
from pyjamas.DeferredCommand import DeferredCommand
from pyjamas.ui.DockPanel import DockPanel
from pyjamas.ui.RootPanel import RootPanel
from pyjamas.ui.VerticalPanel import VerticalPanel
from MailDetail import MailDetail
from Shortcuts import Shortcuts
from MailList import MailList
from TopPanel import TopPanel
from Logger import Logger

class Mail:

    def get(self):
        return self.singleton

    def onModuleLoad(self):
        self.singleton = self

        topPanel = TopPanel()
        rightPanel = VerticalPanel()
        self.mailDetail = MailDetail()
        self.shortcuts = Shortcuts()

        topPanel.setWidth("100%")

        # MailList uses Mail.get() in its constructor, so initialize it after
        # 'singleton'.
        mailList = MailList(self.singleton)
        mailList.setWidth("100%")
        
        # Create the right panel, containing the email list & details.
        rightPanel.add(mailList)
        rightPanel.add(self.mailDetail)
        mailList.setWidth("100%")
        self.mailDetail.setWidth("100%")

        # Create a dock panel that will contain the menu bar at the top,
        # the shortcuts to the left, and the mail list & details taking the rest.
        outer = DockPanel()
        outer.add(topPanel, DockPanel.NORTH)
        outer.add(self.shortcuts, DockPanel.WEST)
        outer.add(rightPanel, DockPanel.CENTER)
        outer.setWidth("100%")

        outer.setSpacing(4)
        outer.setCellWidth(rightPanel, "100%")

        # Hook the window resize event, so that we can adjust the UI.
        #FIXME need implementation # Window.addWindowResizeListener(this)
        Window.addWindowResizeListener(self)

        # Get rid of scrollbars, and clear out the window's built-in margin,
        # because we want to take advantage of the entire client area.
        Window.enableScrolling(False)
        Window.setMargin("0px")
        
        # Finally, add the outer panel to the RootPanel, so that it will be
        # displayed.
        #RootPanel.get().add(outer) # FIXME get#
        RootPanel().add(outer)
        RootPanel().add(Logger())
        
        # Call the window resized handler to get the initial sizes setup. Doing
        # this in a deferred command causes it to occur after all widgets' sizes
        # have been computed by the browser.

        DeferredCommand().add(self)

    def execute(self):
        self.onWindowResized(Window.getClientWidth(), Window.getClientHeight())

    def onWindowResized(self, width, height):
        # Adjust the shortcut panel and detail area to take up the available room
        # in the window.
        #Logger("Window resized", "width: " + width+ ", height: " + height)

        shortcutHeight = height - self.shortcuts.getAbsoluteTop() - 8
        if (shortcutHeight < 1):
            shortcutHeight = 1
        self.shortcuts.setHeight("" + shortcutHeight)

        # Give the mail detail widget a chance to resize itself as well.
        self.mailDetail.adjustSize(width, height)

    def displayItem(self, item):
        self.mailDetail.setItem(item)

if __name__ == '__main__':
    m = Mail()
    m.onModuleLoad()

