コード例 #1
0
  @Override
  public void dispatchInvalidateOptionsMenu() {
    if (DEBUG) Log.d(TAG, "[dispatchInvalidateOptionsMenu]");

    if (mMenu == null) {
      Context context = mActivity;
      if (mActionBar != null) {
        TypedValue outValue = new TypedValue();
        mActivity.getTheme().resolveAttribute(R.attr.actionBarWidgetTheme, outValue, true);
        if (outValue.resourceId != 0) {
          // We are unable to test if this is the same as our current theme
          // so we just wrap it and hope that if the attribute was specified
          // then the user is intentionally specifying an alternate theme.
          context = new ContextThemeWrapper(context, outValue.resourceId);
        }
      }
      mMenu = new MenuBuilder(context);
      mMenu.setCallback(mMenuBuilderCallback);
    }

    mMenu.stopDispatchingItemsChanged();
    mMenu.clear();

    if (!callbackCreateOptionsMenu(mMenu)) {
      mMenu = null;
      if (mActionBar != null) {
        if (DEBUG) Log.d(TAG, "[dispatchInvalidateOptionsMenu] setting action bar menu to null");
        mActionBar.setMenu(null, mMenuPresenterCallback);
      }
      return;
    }

    if (!callbackPrepareOptionsMenu(mMenu)) {
      if (mActionBar != null) {
        if (DEBUG) Log.d(TAG, "[dispatchInvalidateOptionsMenu] setting action bar menu to null");
        mActionBar.setMenu(null, mMenuPresenterCallback);
      }
      mMenu.startDispatchingItemsChanged();
      return;
    }

    // TODO figure out KeyEvent? See PhoneWindow#preparePanel
    KeyCharacterMap kmap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
    mMenu.setQwertyMode(kmap.getKeyboardType() != KeyCharacterMap.NUMERIC);
    mMenu.startDispatchingItemsChanged();

    if (DEBUG) Log.d(TAG, "[dispatchInvalidateOptionsMenu] setting action bar menu to " + mMenu);
    mActionBar.setMenu(mMenu, mMenuPresenterCallback);
  }
コード例 #2
0
  private void dispatchPresenterUpdate(boolean cleared) {
    if (mPresenters.isEmpty()) return;

    stopDispatchingItemsChanged();
    for (WeakReference<MenuPresenter> ref : mPresenters) {
      final MenuPresenter presenter = ref.get();
      if (presenter == null) {
        mPresenters.remove(ref);
      } else {
        presenter.updateMenuView(cleared);
      }
    }
    startDispatchingItemsChanged();
  }
コード例 #3
0
  public boolean collapseItemActionView(MenuItemImpl item) {
    if (mPresenters.isEmpty() || mExpandedItem != item) return false;

    boolean collapsed = false;

    stopDispatchingItemsChanged();
    for (WeakReference<MenuPresenter> ref : mPresenters) {
      final MenuPresenter presenter = ref.get();
      if (presenter == null) {
        mPresenters.remove(ref);
      } else if ((collapsed = presenter.collapseItemActionView(this, item))) {
        break;
      }
    }
    startDispatchingItemsChanged();

    if (collapsed) {
      mExpandedItem = null;
    }
    return collapsed;
  }
コード例 #4
0
  private boolean preparePanel() {
    // Already prepared (isPrepared will be reset to false later)
    if (mMenuIsPrepared) {
      return true;
    }

    // Init the panel state's menu--return false if init failed
    if (mMenu == null || mMenuRefreshContent) {
      if (mMenu == null) {
        if (!initializePanelMenu() || (mMenu == null)) {
          return false;
        }
      }

      if (wActionBar != null) {
        wActionBar.setMenu(mMenu, this);
      }

      // Call callback, and return if it doesn't want to display menu.

      // Creating the panel menu will involve a lot of manipulation;
      // don't dispatch change events to presenters until we're done.
      mMenu.stopDispatchingItemsChanged();
      if (!callbackCreateOptionsMenu(mMenu)) {
        // Ditch the menu created above
        mMenu = null;

        if (wActionBar != null) {
          // Don't show it in the action bar either
          wActionBar.setMenu(null, this);
        }

        return false;
      }

      mMenuRefreshContent = false;
    }

    // Callback and return if the callback does not want to show the menu

    // Preparing the panel menu can involve a lot of manipulation;
    // don't dispatch change events to presenters until we're done.
    mMenu.stopDispatchingItemsChanged();

    // Restore action view state before we prepare. This gives apps
    // an opportunity to override frozen/restored state in onPrepare.
    if (mMenuFrozenActionViewState != null) {
      mMenu.restoreActionViewStates(mMenuFrozenActionViewState);
      mMenuFrozenActionViewState = null;
    }

    if (!callbackPrepareOptionsMenu(mMenu)) {
      if (wActionBar != null) {
        // The app didn't want to show the menu for now but it still exists.
        // Clear it out of the action bar.
        wActionBar.setMenu(null, this);
      }
      mMenu.startDispatchingItemsChanged();
      return false;
    }

    // Set the proper keymap
    KeyCharacterMap kmap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
    mMenu.setQwertyMode(kmap.getKeyboardType() != KeyCharacterMap.NUMERIC);
    mMenu.startDispatchingItemsChanged();

    // Set other state
    mMenuIsPrepared = true;

    return true;
  }