Club Drupal

/**

 * @file: Popup dialog interfaces for the media project.

 *

 * Drupal.media.popups.mediaBrowser

 *   Launches the media browser which allows users to pick a piece of media.

 *

 * Drupal.media.popups.mediaStyleSelector

 *  Launches the style selection form where the user can choose what

 *  format/style they want their media in.

 */

(function ($) {

namespace('Drupal.media.popups');

/**

 * Media browser popup. Creates a media browser dialog.

 *

 * @param {function}

 *   onSelect Callback for when dialog is closed, received (Array media, Object

 *   extra);

 * @param {Object}

 *   globalOptions Global options that will get passed upon initialization of

 *   the browser. @see Drupal.media.popups.mediaBrowser.getDefaults();

 * @param {Object}

 *   pluginOptions Options for specific plugins. These are passed to the plugin

 *   upon initialization.  If a function is passed here as a callback, it is

 *   obviously not passed, but is accessible to the plugin in

 *   Drupal.settings.variables. Example:

 *   pluginOptions = {library: {url_include_patterns:'/foo/bar'}};

 * @param {Object}

 *   widgetOptions Options controlling the appearance and behavior of the modal

 *   dialog. @see Drupal.media.popups.mediaBrowser.getDefaults();

 */

Drupal.media.popups.mediaBrowser = function (onSelect, globalOptions, pluginOptions, widgetOptions) {

  // Get default dialog options.

  var options = Drupal.media.popups.mediaBrowser.getDefaults();

  // Add global, plugin and widget options.

  options.global = $.extend({}, options.global, globalOptions);

  options.plugins = pluginOptions;

  options.widget = $.extend({}, options.widget, widgetOptions);

  // Find the URL of the modal iFrame.

  var browserSrc = options.widget.src;

  if ($.isArray(browserSrc) && browserSrc.length) {

    browserSrc = browserSrc[browserSrc.length - 1];

  }

  // Create an array of parameters to send along to the iFrame.

  var params = {};

  // Add global field widget settings and plugin information.

  $.extend(params, options.global);

  params.plugins = options.plugins;

  // Append the list of parameters to the iFrame URL as query parameters.

  browserSrc += '&' + $.param(params);

  // Create an iFrame with the iFrame URL.

  var mediaIframe = Drupal.media.popups.getPopupIframe(browserSrc, 'mediaBrowser');

  // Attach an onLoad event.

  mediaIframe.bind('load', options, options.widget.onLoad);

  // Create an array of Dialog options.

  var dialogOptions = options.dialog;

  // Setup the dialog buttons.

  var ok = Drupal.t('OK');

  var notSelected = Drupal.t('You have not selected anything!');

  dialogOptions.buttons[ok] = function () {

    // Find the current file selection.

    var selected = this.contentWindow.Drupal.media.browser.selectedMedia;

    // Alert the user if a selection has yet to be made.

    if (selected.length < 1) {

      alert(notSelected);

      return;

    }

    // Select the file.

    onSelect(selected);

    // Close the dialog.

    $(this).dialog('close');

  };

  // Create a jQuery UI dialog with the given options.

  var dialog = mediaIframe.dialog(dialogOptions);

  // Allow the dialog to react to re-sizing, scrolling, etc.

  Drupal.media.popups.sizeDialog(dialog);

  Drupal.media.popups.resizeDialog(dialog);

  Drupal.media.popups.scrollDialog(dialog);

  Drupal.media.popups.overlayDisplace(dialog.parents(".ui-dialog"));

  return mediaIframe;

};

/**

 * Retrieves a list of default settings for the media browser.

 *

 * @return

 *   An array of default settings.

 */

Drupal.media.popups.mediaBrowser.getDefaults = function () {

  return {

    global: {

      types: [], // Types to allow, defaults to all.

      activePlugins: [] // If provided, a list of plugins which should be enabled.

    },

    widget: { // Settings for the actual iFrame which is launched.

      src: Drupal.settings.media.browserUrl, // Src of the media browser (if you want to totally override it)

      onLoad: Drupal.media.popups.mediaBrowser.mediaBrowserOnLoad // Onload function when iFrame loads.

    },

    dialog: Drupal.media.popups.getDialogOptions()

  };

};

/**

 * Sets up the iFrame buttons.

 */

Drupal.media.popups.mediaBrowser.mediaBrowserOnLoad = function (e) {

  var options = e.data;

  // Ensure that the iFrame is defined.

  if (this.contentWindow.Drupal.media.browser == undefined) {

    return;

  }

  // Check if a selection has been made and press the 'ok' button.

  if (this.contentWindow.Drupal.media.browser.selectedMedia.length > 0) {

    var ok = Drupal.t('OK');

    var ok_func = $(this).dialog('option', 'buttons')[ok];

    ok_func.call(this);

    return;

  }

};

/**

 * Finalizes the selection of a file.

 *

 * Alerts the user if a selection has yet to be made, triggers the file

 * selection and closes the modal dialog.

 */

Drupal.media.popups.mediaBrowser.finalizeSelection = function () {

  // Find the current file selection.

  var selected = this.contentWindow.Drupal.media.browser.selectedMedia;

  // Alert the user if a selection has yet to be made.

  if (selected.length < 1) {

    alert(notSelected);

    return;

  }

  // Select the file.

  onSelect(selected);

  // Close the dialog.

  $(this).dialog('close');

};

/**

 * Style chooser Popup. Creates a dialog for a user to choose a media style.

 *

 * @param mediaFile

 *   The mediaFile you are requesting this formatting form for.

 *   @todo: should this be fid? That's actually all we need now.

 *

 * @param Function

 *   onSubmit Function to be called when the user chooses a media style. Takes

 *   one parameter (Object formattedMedia).

 *

 * @param Object

 *   options Options for the mediaStyleChooser dialog.

 */

Drupal.media.popups.mediaStyleSelector = function (mediaFile, onSelect, options) {

  var defaults = Drupal.media.popups.mediaStyleSelector.getDefaults();

  // @todo: remove this awful hack :(

  if (typeof defaults.src === 'string' ) {

    defaults.src = defaults.src.replace('-media_id-', mediaFile.fid) + '&fields=' + encodeURIComponent(JSON.stringify(mediaFile.fields));

  }

  else {

    var src = defaults.src.shift();

    defaults.src.unshift(src);

    defaults.src = src.replace('-media_id-', mediaFile.fid) + '&fields=' + encodeURIComponent(JSON.stringify(mediaFile.fields));

  }

  options = $.extend({}, defaults, options);

  // Create an iFrame with the iFrame URL.

  var mediaIframe = Drupal.media.popups.getPopupIframe(options.src, 'mediaStyleSelector');

  // Attach an onLoad event.

  mediaIframe.bind('load', options, options.onLoad);

  // Create an array of Dialog options.

  var dialogOptions = Drupal.media.popups.getDialogOptions();

  // Setup the dialog buttons.

  var ok = Drupal.t('OK');

  var notSelected = Drupal.t('Very sorry, there was an unknown error embedding media.');

  dialogOptions.buttons[ok] = function () {

    // Find the current file selection.

    var formattedMedia = this.contentWindow.Drupal.media.formatForm.getFormattedMedia();

    formattedMedia.options = $.extend({}, mediaFile.attributes, formattedMedia.options);

    // Alert the user if a selection has yet to be made.

    if (!formattedMedia) {

      alert(notSelected);

      return;

    }

    // Select the file.

    onSelect(formattedMedia);

    // Close the dialog.

    $(this).dialog('close');

  };

  // Create a jQuery UI dialog with the given options.

  var dialog = mediaIframe.dialog(dialogOptions);

  // Allow the dialog to react to re-sizing, scrolling, etc.

  Drupal.media.popups.sizeDialog(dialog);

  Drupal.media.popups.resizeDialog(dialog);

  Drupal.media.popups.scrollDialog(dialog);

  Drupal.media.popups.overlayDisplace(dialog.parents(".ui-dialog"));

  return mediaIframe;

};

Drupal.media.popups.mediaStyleSelector.mediaBrowserOnLoad = function (e) {

};

Drupal.media.popups.mediaStyleSelector.getDefaults = function () {

  return {

    src: Drupal.settings.media.styleSelectorUrl,

    onLoad: Drupal.media.popups.mediaStyleSelector.mediaBrowserOnLoad

  };

};

/**

 * Style chooser Popup. Creates a dialog for a user to choose a media style.

 *

 * @param mediaFile

 *   The mediaFile you are requesting this formatting form for.

 *   @todo: should this be fid? That's actually all we need now.

 *

 * @param Function

 *   onSubmit Function to be called when the user chooses a media style. Takes

 *   one parameter (Object formattedMedia).

 *

 * @param Object

 *   options Options for the mediaStyleChooser dialog.

 */

Drupal.media.popups.mediaFieldEditor = function (fid, onSelect, options) {

  var defaults = Drupal.media.popups.mediaFieldEditor.getDefaults();

  // @todo: remove this awful hack :(

  defaults.src = defaults.src.replace('-media_id-', fid);

  options = $.extend({}, defaults, options);

  // Create an iFrame with the iFrame URL.

  var mediaIframe = Drupal.media.popups.getPopupIframe(options.src, 'mediaFieldEditor');

  // Attach an onLoad event.

  mediaIframe.bind('load', options, options.onLoad);

  // Create an array of Dialog options.

  var dialogOptions = Drupal.media.popups.getDialogOptions();

  // Setup the dialog buttons.

  var ok = Drupal.t('OK');

  var notSelected = Drupal.t('Very sorry, there was an unknown error embedding media.');

  dialogOptions.buttons[ok] = function () {

    // Find the current file selection.

    var formattedMedia = this.contentWindow.Drupal.media.formatForm.getFormattedMedia();

    // Alert the user if a selection has yet to be made.

    if (!formattedMedia) {

      alert(notSelected);

      return;

    }

    // Select the file.

    onSelect(formattedMedia);

    // Close the dialog.

    $(this).dialog('close');

  };

  // Create a jQuery UI dialog with the given options.

  var dialog = mediaIframe.dialog(dialogOptions);

  // Allow the dialog to react to re-sizing, scrolling, etc.

  Drupal.media.popups.sizeDialog(dialog);

  Drupal.media.popups.resizeDialog(dialog);

  Drupal.media.popups.scrollDialog(dialog);

  Drupal.media.popups.overlayDisplace(dialog);

  return mediaIframe;

};

Drupal.media.popups.mediaFieldEditor.mediaBrowserOnLoad = function (e) {

};

Drupal.media.popups.mediaFieldEditor.getDefaults = function () {

  return {

    // @todo: do this for real

    src: '/media/-media_id-/edit?render=media-popup',

    onLoad: Drupal.media.popups.mediaFieldEditor.mediaBrowserOnLoad

  };

};

/**

 * Generic functions to both the media-browser and style selector.

 */

/**

 * Returns the commonly used options for the dialog.

 */

Drupal.media.popups.getDialogOptions = function () {

  return {

    title: Drupal.t('Media browser'),

    buttons: {},

    dialogClass: Drupal.settings.media.dialogOptions.dialogclass,

    modal: Drupal.settings.media.dialogOptions.modal,

    draggable: Drupal.settings.media.dialogOptions.draggable,

    resizable: Drupal.settings.media.dialogOptions.resizable,

    minWidth: Drupal.settings.media.dialogOptions.minwidth,

    width: Drupal.settings.media.dialogOptions.width,

    height: Drupal.settings.media.dialogOptions.height,

    position: Drupal.settings.media.dialogOptions.position,

    overlay: {

      backgroundColor: Drupal.settings.media.dialogOptions.overlay.backgroundcolor,

      opacity: Drupal.settings.media.dialogOptions.overlay.opacity

    },

    zIndex: Drupal.settings.media.dialogOptions.zindex,

    close: function (event, ui) {

      var elem = $(event.target);

      var id = elem.attr('id');

      if(id == 'mediaStyleSelector') {

        $(this).dialog("destroy");

        $('#mediaStyleSelector').remove();

      }

      else {

        $(this).dialog("destroy");

        $('#mediaBrowser').remove();

      }

    }

  };

};

/**

 * Get an iframe to serve as the dialog's contents. Common to both plugins.

 */

Drupal.media.popups.getPopupIframe = function (src, id, options) {

  var defaults = {width: '100%', scrolling: 'auto'};

  var options = $.extend({}, defaults, options);

  return $('<iframe class="media-modal-frame"/>')

  .attr('src', src)

  .attr('width', options.width)

  .attr('id', id)

  .attr('scrolling', options.scrolling);

};

Drupal.media.popups.overlayDisplace = function (dialog) {

  if (parent.window.Drupal.overlay && jQuery.isFunction(parent.window.Drupal.overlay.getDisplacement)) {

    var overlayDisplace = parent.window.Drupal.overlay.getDisplacement('top');

    if (dialog.offset().top < overlayDisplace) {

      dialog.css('top', overlayDisplace);

    }

  }

}

/**

 * Size the dialog when it is first loaded and keep it centered when scrolling.

 *

 * @param jQuery dialogElement

 *  The element which has .dialog() attached to it.

 */

Drupal.media.popups.sizeDialog = function (dialogElement) {

  if (!dialogElement.is(':visible')) {

    return;

  }

  var windowWidth = $(window).width();

  var dialogWidth = windowWidth * 0.8;

  var windowHeight = $(window).height();

  var dialogHeight = windowHeight * 0.8;

  dialogElement.dialog("option", "width", dialogWidth);

  dialogElement.dialog("option", "height", dialogHeight);

  dialogElement.dialog("option", "position", 'center');

  $('.media-modal-frame').width('100%');

}

/**

 * Resize the dialog when the window changes.

 *

 * @param jQuery dialogElement

 *  The element which has .dialog() attached to it.

 */

Drupal.media.popups.resizeDialog = function (dialogElement) {

  $(window).resize(function() {

    Drupal.media.popups.sizeDialog(dialogElement);

  });

}

/**

 * Keeps the dialog centered when the window is scrolled.

 *

 * @param jQuery dialogElement

 *  The element which has .dialog() attached to it.

 */

Drupal.media.popups.scrollDialog = function (dialogElement) {

  // Keep the dialog window centered when scrolling.

  $(window).scroll(function() {

    if (!dialogElement.is(':visible')) {

      return;

    }

    dialogElement.dialog("option", "position", 'center');

  });

}

})(jQuery);