Merge pull request #67 from creamarketing/languagedropdown-in-linkform

ENHANCEMENT: Add language dropdown for link form

_config.php

@@ -2,3 +2,4 @@
 Object::add_extension('SiteTree', 'Translatable');
 Object::add_extension('SiteConfig', 'Translatable'); 
 Object::add_extension('LeftAndMain', 'TranslatableCMSMainExtension');
+Object::add_extension('HtmlEditorField_Toolbar', 'TranslatableEditorToolbarExtension'); 

code/controller/TranslatableCMSMainExtension.php

@@ -49,6 +49,7 @@ class TranslatableCMSMainExtension extends Extension {
 		if(
 			$requestLocale && $page && $page->hasExtension('Translatable') 
 			&& $page->Locale != $requestLocale
+			&& $req->latestParam('Action') != 'EditorToolbar'
 		) {
 			$transPage = $page->getTranslation($requestLocale);
 			if($transPage) {

code/controller/TranslatableEditorToolbarExtension.php

@@ -0,0 +1,12 @@
+<?php
+
+class TranslatableEditorToolbarExtension extends DataExtension {
+	
+	function updateLinkForm(&$form) {
+		$field = new LanguageDropdownField('Language', _t('CMSMain.LANGUAGEDROPDOWNLABEL', 'Language'));
+		$field->setForm($form);
+		$form->Fields()->insertBefore($field, 'internal');
+		Requirements::javascript('translatable/javascript/HtmlEditorField.Translatable.js');
+	}
+	
+}

code/forms/LanguageDropdownField.php

@@ -76,4 +76,33 @@ class LanguageDropdownField extends GroupedDropdownField {
 	function Type() {
 		return 'languagedropdown dropdown';
 	}
+	
+	public function getAttributes() {
+		return array_merge(
+			parent::getAttributes(),
+			array('data-locale-url' => $this->Link('getLocaleForObject'))
+		);
+	}
+	
+	/**
+	 * Get the locale for an object that has the Translatable extension.
+	 * 
+	 * @return locale
+	 */
+	function getLocaleForObject() {
+		$id = (int)$this->getRequest()->requestVar('id');
+		$class = Convert::raw2sql($this->getRequest()->requestVar('class'));
+		$locale = Translatable::get_current_locale();
+		if ($id && $class && class_exists($class) && Object::has_extension($class, 'Translatable')) {
+			// temporarily disable locale filter so that we won't filter out the object 
+			Translatable::disable_locale_filter();
+			$object = DataObject::get_by_id($class, $id);
+			Translatable::enable_locale_filter();
+			if ($object) {
+				$locale = $object->Locale;
+			}
+		}
+		return $locale;
+	}
+	
 }

javascript/HtmlEditorField.Translatable.js

@@ -0,0 +1,39 @@
+(function($) {
+	$.entwine('ss', function($){
+		$('form.htmleditorfield-linkform').entwine({
+			redraw: function() {
+				this._super();
+				// show language field for internal links
+				var linkType = this.find(':input[name=LinkType]:checked').val(), list = ['internal', 'external', 'file', 'email'];
+				if(linkType == 'internal') {
+					this.find('.field#Language').show();
+				}
+			},
+			updateFromEditor: function() {
+				var data = this.getCurrentLink();
+				if(data && data.internal) {
+					// fetch locale for given sitetree object
+					var localeField = $(this).find('#Form_EditorToolbarLinkForm_Language');
+					$.ajax({
+						url: $.path.addSearchParams(localeField.data('localeUrl'), {'id': data.internal, 'class': 'SiteTree'}),
+						success: function(data) {
+							localeField.val(data);
+							localeField.change();
+							localeField.trigger('liszt:updated');
+						}
+					});
+				}
+				this._super();
+			}
+		});
+		
+		$('form.htmleditorfield-linkform #Form_EditorToolbarLinkForm_Language').entwine({
+			onchange: function(e) {
+				// reload tree with selected locale
+				var treeDropdown = $(this).parents('form').find('#internal .treedropdown');
+				treeDropdown.data('urlTree', $.path.addSearchParams(treeDropdown.data('urlTree').replace(/locale=[^&]*/, ''), 'locale='+$(this).val()));
+				treeDropdown.loadTree();
+			}
+		});
+	});
+}(jQuery));