SinglePageLayout.java 文件源码

@Override
public void onKeyDown(KeyDownEvent event) {
    int key = event.getNativeKeyCode();
    if (event.isControlKeyDown()) {
        if (key == KEY_PLUS || key == KEY_MINUS) {
            app.getToolbar().zoomChangeClicked(key == KEY_PLUS ? 1 : -1);
            event.preventDefault();
        }
    } else if (!event.isShiftKeyDown()) {
        boolean handled = true;
        switch (key) {
        case KeyCodes.KEY_HOME:
            changePage(0, -1, -1);
            break;
        case KeyCodes.KEY_END:
            changePage(dataStore.getPageCount() - 1, 1, 1);
            break;
        default:
            handled = false;
        }
        if (handled)
            event.preventDefault();
    }
}