Part 2 at solving conflict with vector and js edit

Add OutputPage::includeJQuery() for loading the jQuery currently shipped
with core. Extension can use this function to avoid loading it multiple
times. No support for plugins etc.

Changes Translate extension to use that function, restored compatability
with 1.15 for at least this part of code.

diff --git a/includes/OutputPage.php b/includes/OutputPage.php
index 2d1ea8c..eed71f2 100644 (file)
--- a/includes/OutputPage.php
+++ b/includes/OutputPage.php
@@ -47,6 +47,11 @@ class OutputPage {
         */
        var $styles = array();
 
+       /**
+        * Whether to load jQuery core.
+        */
+       protected $mIncludeJQuery = false;
+
        private $mIndexPolicy = 'index';
        private $mFollowPolicy = 'follow';
        private $mVaryHeader = array( 'Accept-Encoding' => array('list-contains=gzip'),
@@ -2103,4 +2108,22 @@ class OutputPage {
                }
                $this->addHTML( $this->parse( $s, /*linestart*/true, /*uilang*/true ) );
        }
+
+       /**
+        * Include jQuery core. Use this to avoid loading it multiple times
+        * before we get usable script loader.
+        */
+       public function includeJQuery() {
+               if ( $this->mIncludeJQuery ) return;
+               $this->mIncludeJQuery = true;
+
+               global $wgScriptPath, $wgStyleVersion, $wgJsMimeType;
+
+               $params = array(
+                       'type' => $wgJsMimeType,
+                       'src' => "$wgScriptPath/js2/js2stopgap.min.js?$wgStyleVersion",
+               );
+               $this->mScripts = Html::element( 'script', $params ) . "\n" . $this->mScripts;
+       }
+
 }