Currently, we instantiate a view using the template path, e.g.,

    $view = new Piwik_View('Login/templates/login.tpl');

We should create a view factory (and refactor a bit of the code in #700, e.g., cli templates). We should also standardize on a convention of either subdirectories (e.g., templates/mobile/login.tpl) or a prefix (e.g., 'mobile_login.tpl').

Add a FrontController.getViewType hook.

    // default
    $viewType = 'full';

    if (phpCliMode()) {
        $viewType = 'cli';
    } else if (isset($session->viewType)) {
        $viewType = $session->viewType;
    } else {
        // mobile browser detection
        ...
    }

View factory method implemented in #921.

    $view = Piwik_View::factory('login');

See !http://wurfl.sourceforge.net/newapi/index.php

Or: !http://mdbf.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=30256

Not as extensive as wurfl but smaller footprint (12mb vs 160k). Note Microsoft Public License so cannot be included in Piwik core.

Attachment: stub mobile UI plugin; render footer to switch between view types
ActiveMobile.zip

Could this be implemented as a "mobile theme"? (see #5597)

See also #395

I mark as wont fix since we now have powerful Piwik Mobile app for web analytics reports on the phone, so probably enough. Plus we are trying to move away from flash completely so most phones should be compatible (JS/HTML required of course). For other phones, they can use HTML Reports :)