Add publicly available font size property

Added a publicly available calculated font size property. This allows Endless applications to perform actions based on the calculated font size of an EosWindow. In particular, the WebHelper application now uses the property to update the 'default-font-size' property of a WebSettings object.

[endlessm/eos-sdk#484]

1 files changed, 23 insertions, 0 deletions

diff --git a/webhelper/webhelper.js b/webhelper/webhelper.js
index 32ad4ec..d4f6811 100644
--- a/webhelper/webhelper.js
+++ b/webhelper/webhelper.js
@@ -263,5 +263,28 @@ const Application = new Lang.Class({
                     "your app?");
             element.inner_html = this._translationFunction(element.inner_text);
         }
+    },
+
+    /**
+     * Method: set_web_settings_font_resizable
+     * Set an eos_window to update font size of web_settings
+     *
+     * Parameters:
+     *   eos_windw - an <Endless.Window>
+     *   web_settings - a <WebKit.WebSettings>
+     *
+     * The <Endless.Window> will be connected on its "size-allocate" signal
+     * to the given <WebKit.WebSettings>. The <Endless.Window> will update the
+     * "default-font-size" property of the <WebKit.WebSettings> calculated font size
+     * to the <Endless.Window>'s calculated font size.
+     */
+    set_web_settings_font_resizable: function (eos_window, web_settings) {
+        eos_window.connect('size-allocate',
+            Lang.bind(this, function (widget, allocation) {
+                if (eos_window.font_scaling_active) {
+                    web_settings.default_font_size = eos_window.font_scaling_calculated_font_size;
+                }
+            }
+        ));
     }
 });