Bug 1413648 fix default extension icon use, r=aswan

MozReview-Commit-ID: 3Dh2DjGIAgn

--HG--
extra : rebase_source : da88dcede96fa8f89cca1e9abf9baabb78a73855

browser/components/extensions/ext-pageAction.js

@@ -67,7 +67,7 @@ this.pageAction = class extends ExtensionAPI {
       this.browserPageAction = PageActions.addAction(new PageActions.Action({
         id: widgetId,
         title: this.defaults.title,
-        iconURL: this.defaults.icon,
+        iconURL: this.getIconData(this.defaults.icon),
         shownInUrlbar: true,
         disabled: true,
         onCommand: (event, buttonNode) => {
@@ -137,14 +137,23 @@ this.pageAction = class extends ExtensionAPI {
     if (typeof(tabData.icon) == "string") {
       iconURL = IconDetails.escapeUrl(tabData.icon);
     } else {
-      iconURL = Object.entries(tabData.icon).reduce((memo, [size, url]) => {
-        memo[size] = IconDetails.escapeUrl(url);
-        return memo;
-      }, {});
+      iconURL = this.getIconData(tabData.icon);
     }
     this.browserPageAction.setIconURL(iconURL, window);
   }
 
+  getIconData(icons) {
+    let getIcon = size => {
+      let {icon} = IconDetails.getPreferredIcon(icons, this.extension, size);
+      // TODO: implement theme based icon for pageAction (Bug 1398156)
+      return IconDetails.escapeUrl(icon);
+    };
+    return {
+      "16": getIcon(16),
+      "32": getIcon(32),
+    };
+  }
+
   /**
    * Triggers this page action for the given window, with the same effects as
    * if it were clicked by a user.

browser/components/extensions/test/browser/browser_ext_browserAction_pageAction_icon.js

@@ -264,16 +264,20 @@ add_task(async function testDetailsObjects() {
   let browserActionWidget = getBrowserActionWidget(extension);
 
   let tests = await extension.awaitMessage("ready");
+
+  // The initial icon should be the default icon since no icon is in the manifest.
+  const DEFAULT_ICON = "chrome://browser/content/extension.svg";
+  let browserActionButton = browserActionWidget.forWindow(window).node;
+  let pageActionImage = document.getElementById(pageActionId);
+  is(getListStyleImage(browserActionButton), DEFAULT_ICON, `browser action has the correct default image`);
+  is(getListStyleImage(pageActionImage), DEFAULT_ICON, `page action has the correct default image`);
+
   for (let test of tests) {
     extension.sendMessage("setIcon", test);
     await extension.awaitMessage("iconSet");
 
     await promiseAnimationFrame();
 
-    let browserActionButton = browserActionWidget.forWindow(window).node;
-    let pageActionImage = document.getElementById(pageActionId);
-
-
     // Test icon sizes in the toolbar/urlbar.
     for (let resolution of Object.keys(test.resolutions)) {
       await SpecialPowers.pushPrefEnv({set: [[RESOLUTION_PREF, resolution]]});