first import

sites/all/modules/delta/plugins/context/context_reaction_delta.inc

@@ -0,0 +1,58 @@
+<?php
+
+/**
+ * Expose themes as context reactions.
+ */
+class context_reaction_delta extends context_reaction {
+  /**
+   * @todo
+   */
+  function options_form($context) {
+    $values = $this->fetch_from_context($context);
+    $options = _delta_options();
+    
+    $form = array(
+      '#tree' => TRUE,
+      '#title' => t('Delta Override Template'),
+    );
+    
+    $form['delta_template'] = array(
+      '#type' => count($options) > 10 ? 'select' : 'radios',
+      '#title' => t('Select Custom theme settings template.'),
+      '#description' => empty($options) ? t('There are no valid (enabled) Delta templates available.') : t('The theme settings of the selected Delta template will override the default theme settings for all pages that match this context.'),
+      '#default_value' => isset($values['delta_template']) ? $values['delta_template'] : NULL,
+      '#options' => $options,
+    );
+    
+    return $form;
+  }
+
+  /**
+   * @todo
+   */
+  function execute() {
+    foreach (context_active_contexts() as $context) {
+      if (!empty($context->reactions['delta']['delta_template'])) {
+        $template = $context->reactions['delta']['delta_template'];
+        
+        if (delta_enabled($template)) {
+          delta_inject($template);      
+        }
+      }
+    }
+  }
+}
+
+/**
+ * @todo
+ */
+function _delta_options() {  
+  $options = array();
+  foreach (delta_load_all() as $item) {
+    if (delta_enabled($item->machine_name)) {
+      $options[$item->machine_name] = $item->name;
+    }
+  }
+  
+  return $options;
+}

sites/all/modules/delta/plugins/delta/delta_injection.inc

@@ -0,0 +1,134 @@
+<?php
+
+class delta_injection {
+  var $plugin;
+  var $delta;
+  var $original;
+  var $settings;
+
+  /**
+   * Constructor. Do not override.
+   */
+  function __construct($plugin, $delta) {
+    $this->plugin = $plugin;
+    $this->delta = delta_load($delta);
+  }
+
+  /**
+   * @todo
+   */
+  function variables() {
+    return array();
+  }
+
+  /**
+   * @todo
+   */
+  function config($name) {
+    if (isset($this->settings[$name])) {
+      return $this->settings[$name];
+    }
+
+    if (!empty($this->delta->parent)) {
+      if ($plugin = delta_get_plugin($this->delta->parent, $this->plugin['name'])) {
+        $this->settings[$name] = isset($this->delta->settings[$name]) ? delta_merge($plugin->config($name), $this->delta->settings[$name]) : $plugin->config($name);
+      }
+    }
+
+    if (!isset($this->settings[$name])) {
+      $this->settings[$name] = isset($this->delta->settings[$name]) ? delta_merge(variable_get($name), $this->delta->settings[$name]) : variable_get($name);
+    }
+
+    return $this->settings[$name];
+  }
+
+  /**
+   * @todo
+   */
+  function inject() {
+    foreach ($this->variables() as $name) {
+      $settings = $this->config($name);
+
+      if (isset($settings)) {
+        $this->backup($name, delta_variable_set($name, $settings));
+      }
+    }
+  }
+
+  /**
+   * @todo
+   */
+  function revoke() {
+    foreach ($this->variables() as $name) {
+      delta_variable_set($name, $this->backup($name));
+    }
+  }
+
+  /**
+   * @todo
+   */
+  function backup($name, $value = NULL) {
+    if (isset($value) && !isset($this->original[$name])) {
+      $this->original[$name] = $value;
+    }
+
+    if (isset($this->original[$name])) {
+      return $this->original[$name];
+    }
+  }
+
+  /**
+   * @todo
+   */
+  function presave($form, &$form_state) {
+    if ($this->delta->mode == DELTA_PRESERVE) {
+      $base = array();
+
+      if (!empty($this->delta->parent)) {
+        if ($plugin = delta_get_plugin($this->delta->parent, $this->plugin['name'])) {
+          foreach ($this->variables() as $variable) {
+            $base[$variable] = $plugin->config($variable);
+          }
+        }
+      }
+
+      foreach ($this->variables() as $variable) {
+        if (isset($base[$variable])) {
+          $this->delta->settings[$variable] = delta_reduce($this->delta->settings[$variable], $base[$variable]);
+        }
+        else {
+          $this->delta->settings[$variable] = delta_reduce(
+            is_array($this->delta->settings[$variable]) ? $this->delta->settings[$variable] : array(),
+            is_array(variable_get($variable)) ? variable_get($variable) : array());
+        }
+      }
+    }
+  }
+
+  /**
+   * @todo
+   */
+  function form_alter(&$form, &$form_state) {
+    // Nothing to do here.
+  }
+
+  /**
+   * @todo
+   */
+  function form_validate($form, &$form_state) {
+    foreach ($this->variables() as $name) {
+      $this->backup($name, variable_get($name));
+    }
+  }
+
+  /**
+   * @todo
+   */
+  function form_submit($form, &$form_state) {
+    foreach ($this->variables() as $name) {
+      $this->delta->settings[$name] = variable_get($name);
+
+      variable_set($name, $this->backup($name));
+    }
+  }
+}

sites/all/modules/delta/plugins/delta/delta_injection_theme_settings.inc

@@ -0,0 +1,30 @@
+<?php
+
+class delta_injection_theme_settings extends delta_injection {
+  /**
+   * @todo
+   */
+  function variables() {
+    return array('theme_' . $this->delta->theme . '_settings');
+  }
+
+  /**
+   * @todo
+   */
+  function inject() {
+    $cache = &drupal_static('theme_get_setting');
+    $cache[$this->delta->theme] = NULL;
+    
+    parent::inject();
+  }
+  
+  /**
+   * @todo
+   */
+  function revoke() {
+    $cache = &drupal_static('theme_get_setting');
+    $cache[$this->delta->theme] = NULL;
+    
+    parent::revoke();
+  }
+}