442 theme_essential: added custom slide size proof-of-concept

config.php

@@ -37,14 +37,14 @@
 $THEME->sheets[] = 'moodle-rtl';
 $THEME->sheets[] = 'bootstrap-pix';
 $THEME->sheets[] = 'moodle-pix';
+$THEME->sheets[] = 'essential';
 $THEME->sheets[] = 'essential-pix';
 $THEME->sheets[] = 'essential-settings';
 $THEME->sheets[] = 'fontawesome';
 
 if ((get_config('theme_essential', 'enablealternativethemecolors1')) ||
     (get_config('theme_essential', 'enablealternativethemecolors2')) ||
-    (get_config('theme_essential', 'enablealternativethemecolors3'))
-) {
+    (get_config('theme_essential', 'enablealternativethemecolors3'))) {
     $THEME->sheets[] = 'essential-alternative';
 }
 

lang/en/theme_essential.php

@@ -588,3 +588,13 @@
 $string['blogpreferences'] = 'Blog preferences';
 $string['badgepreferences'] = 'Badge preferences';
 $string['messagepreferences'] = 'Message preferences';
+
+// Slide show size
+$string['slidesize'] = 'Slide show size';
+$string['slidesizedesc'] = 'The height of the slide show. Full corresponds to 368 pixel at full screen, Very small corresonds fo 36 pixel at full screen';
+$string['slide10percent'] = 'Very small';
+$string['slide25percent'] = 'Small';
+$string['slide50percent'] = 'Medium';
+$string['slide75percent'] = 'Big';
+$string['slide100percent'] = 'Full';
+

layout/includes/guniversal.php

@@ -93,7 +93,7 @@ function insert_analytics_tracking()
             })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
             ga('create', '" . $trackingid . "', {'siteSpeedSampleRate': 50});
             ga('send', " . $addition . ");
-			
+
             </script>
 			";
     }

lib.php

@@ -389,6 +389,55 @@ function theme_essential_hex2rgba($hex, $opacity) {
     return "rgba($r, $g, $b, $opacity)";
 }
 
+/**
+ * theme_essential_set_slide_size
+ *
+ * @param string $css The original CSS.
+ * @param string $slideheight The slide height in percent.
+ * @return string The modified CSS.
+ */
+function theme_essential_set_slide_size($css, $slidesize) {
+// global $CFG;
+
+    if ($slidesize > 100) {
+        $slidesize = 100;
+    }
+
+    $slidesize /= 100;
+
+    $cases = range(1, 4);
+    foreach ($cases as $case) {
+        $tagbase = '[[setting:slidesize_case'."$case";
+        switch ($case) {
+            case 1:
+                $slideheight = $slidesize * 200;
+                break;
+            case 2:
+                $slideheight = $slidesize * 260;
+                break;
+            case 3:
+                $slideheight = $slidesize * 328;
+                break;
+            case 4:
+                $slideheight = $slidesize * 368;
+                break;
+        }
+        $tag = $tagbase.']]';
+        $replacement = intval($slideheight);
+        $css = str_replace($tag, $replacement . 'px', $css);
+
+        $tag = $tagbase.'_90percent]]';
+        $replacement = intval($slideheight * 0.9);
+        $css = str_replace($tag, $replacement . 'px', $css);
+
+        $tag = $tagbase.'_135percent]]';
+        $replacement = intval($slideheight * 1.35);
+        $css = str_replace($tag, $replacement . 'px', $css);
+    }
+
+    return $css;
+}
+
 /**
  * Adds any custom CSS to the CSS before it is cached.
  *
@@ -417,6 +466,10 @@ function theme_essential_process_css($css, $theme) {
     $css = theme_essential_set_fontfiles($css, 'heading', $headingfont);
     $css = theme_essential_set_fontfiles($css, 'body', $bodyfont);
 
+    // Set the slide size.
+    $slidesize = theme_essential_get_setting('slidesize');
+    $css = theme_essential_set_slide_size($css, $slidesize);
+
     // Set the theme colour.
     $themecolor = theme_essential_get_setting('themecolor');
     $css = theme_essential_set_color($css, $themecolor, '[[setting:themecolor]]', '#30ADD1');

renderers/core_renderer.php

@@ -1309,7 +1309,7 @@ public function render_slide($i, $captionoptions, $theme = null) {
         if ($captionoptions == 0) {
             $slide .= '<div class="container-fluid">';
             $slide .= '<div class="row-fluid">';
-        
+
             if ($slidetitle || $slidecaption) {
                 $slide .= '<div class="span5 the-side-caption">';
                 $slide .= '<div class="the-side-caption-content">';

settings.php

@@ -1376,6 +1376,22 @@
     $setting->set_updatedcallback('theme_reset_all_caches');
     $temp->add($setting);
 
+    // Slide size.
+    $name = 'theme_essential/slidesize';
+    $title = get_string('slidesize', 'theme_essential');
+    $description = get_string('slidesizedesc', 'theme_essential');
+    $default = '100';
+    $choices = array(
+         10 => get_string('slide10percent', 'theme_essential'),
+         25 => get_string('slide25percent', 'theme_essential'),
+         50 => get_string('slide50percent', 'theme_essential'),
+         75 => get_string('slide75percent', 'theme_essential'),
+        100 => get_string('slide100percent', 'theme_essential'),
+    );
+    $setting = new admin_setting_configselect($name, $title, $description, $default, $choices);
+    $setting->set_updatedcallback('theme_reset_all_caches');
+    $temp->add($setting);
+
     // Slide Text colour setting.
     $name = 'theme_essential/slidecolor';
     $title = get_string('slidecolor', 'theme_essential');