From: csagan5 <32685696+csagan5@users.noreply.github.com>
Date: Mon, 13 Jul 2020 00:37:06 +0200
Subject: Add menu item to view source

---
 chrome/android/java/res/menu/custom_tabs_menu.xml  |  3 +++
 chrome/android/java/res/menu/main_menu.xml         |  2 ++
 .../chromium/chrome/browser/ChromeActivity.java    |  2 ++
 .../chrome/browser/ChromeTabbedActivity.java       |  2 ++
 .../app/appmenu/AppMenuPropertiesDelegateImpl.java | 14 ++++++++++++++
 .../CustomTabAppMenuPropertiesDelegate.java        |  1 +
 .../ui/android/strings/android_chrome_strings.grd  |  3 +++
 7 files changed, 27 insertions(+)

diff --git a/chrome/android/java/res/menu/custom_tabs_menu.xml b/chrome/android/java/res/menu/custom_tabs_menu.xml
--- a/chrome/android/java/res/menu/custom_tabs_menu.xml
+++ b/chrome/android/java/res/menu/custom_tabs_menu.xml
@@ -46,6 +46,9 @@
         <item android:id="@+id/add_to_homescreen_id"
             android:title="@string/menu_add_to_homescreen"
             android:orderInCategory="2" />
+        <item android:id="@+id/view_source_id"
+            android:title="@string/view_source"
+            android:orderInCategory="2" />
         <item android:id="@+id/open_webapk_id"
             android:title="@string/menu_open_webapk"
             android:orderInCategory="2" />
diff --git a/chrome/android/java/res/menu/main_menu.xml b/chrome/android/java/res/menu/main_menu.xml
--- a/chrome/android/java/res/menu/main_menu.xml
+++ b/chrome/android/java/res/menu/main_menu.xml
@@ -66,6 +66,8 @@
             android:title="@string/menu_find_in_page" />
         <item android:id="@+id/add_to_homescreen_id"
             android:title="@string/menu_add_to_homescreen" />
+        <item android:id="@+id/view_source_id"
+            android:title="@string/view_source" />
         <item android:id="@+id/open_webapk_id"
             android:title="@string/menu_open_webapk" />
         <item android:id="@+id/request_desktop_site_row_menu_id"
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
@@ -2010,6 +2010,8 @@ public abstract class ChromeActivity<C extends ChromeActivityComponent>
             } catch (ActivityNotFoundException e) {
                 Toast.makeText(context, R.string.open_webapk_failed, Toast.LENGTH_SHORT).show();
             }
+        } else if (id == R.id.view_source_id) {
+            currentTab.getWebContents().getNavigationController().loadUrl(new LoadUrlParams("view-source:"+currentTab.getUrlString()));
         } else if (id == R.id.request_desktop_site_id || id == R.id.request_desktop_site_check_id) {
             final boolean reloadOnChange = !currentTab.isNativePage();
             final boolean usingDesktopUserAgent =
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
@@ -1838,6 +1838,8 @@ public class ChromeTabbedActivity
                 NewTabPageUma.recordAction(NewTabPageUma.ACTION_OPENED_DOWNLOADS_MANAGER);
             }
             RecordUserAction.record("MobileMenuDownloadManager");
+        } else if (id == R.id.view_source_id) {
+            currentTab.getWebContents().getNavigationController().loadUrl(new LoadUrlParams("view-source:"+currentTab.getUrlString()));
         } else if (id == R.id.open_recently_closed_tab) {
             TabModel currentModel = mTabModelSelectorImpl.getCurrentModel();
             if (!currentModel.isIncognito()) currentModel.openMostRecentlyClosedTab();
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/app/appmenu/AppMenuPropertiesDelegateImpl.java b/chrome/android/java/src/org/chromium/chrome/browser/app/appmenu/AppMenuPropertiesDelegateImpl.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/app/appmenu/AppMenuPropertiesDelegateImpl.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/app/appmenu/AppMenuPropertiesDelegateImpl.java
@@ -288,6 +288,7 @@ public class AppMenuPropertiesDelegateImpl implements AppMenuPropertiesDelegate
                         isChromeScheme, isFileScheme, isContentScheme, isIncognito, url));
 
         updateRequestDesktopSiteMenuItem(menu, currentTab, true /* can show */);
+        updateViewSourceMenuItem(menu, currentTab);
 
         // Only display reader mode settings menu option if the current page is in reader mode.
         menu.findItem(R.id.reader_mode_prefs_id).setVisible(shouldShowReaderModePrefs(currentTab));
@@ -625,6 +626,19 @@ public class AppMenuPropertiesDelegateImpl implements AppMenuPropertiesDelegate
         }
     }
 
+    /**
+     * Updates the view source menu item's state.
+     *
+     * @param menu {@link Menu} for view source.
+     * @param currentTab      Current tab being displayed.
+     */
+    protected void updateViewSourceMenuItem(
+            Menu menu, Tab currentTab) {
+        MenuItem viewSourceMenuItem = menu.findItem(R.id.view_source_id);
+        String url = currentTab.getUrlString();
+        viewSourceMenuItem.setVisible(!url.isEmpty() && !url.startsWith("view-source:"));
+    }
+
     /**
      * Updates the request desktop site item's state.
      *
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabAppMenuPropertiesDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabAppMenuPropertiesDelegate.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabAppMenuPropertiesDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabAppMenuPropertiesDelegate.java
@@ -214,6 +214,7 @@ public class CustomTabAppMenuPropertiesDelegate extends AppMenuPropertiesDelegat
             }
 
             updateRequestDesktopSiteMenuItem(menu, currentTab, requestDesktopSiteVisible);
+            updateViewSourceMenuItem(menu, currentTab);
             prepareAddToHomescreenMenuItem(menu, currentTab, addToHomeScreenVisible);
         }
     }
diff --git a/chrome/browser/ui/android/strings/android_chrome_strings.grd b/chrome/browser/ui/android/strings/android_chrome_strings.grd
--- a/chrome/browser/ui/android/strings/android_chrome_strings.grd
+++ b/chrome/browser/ui/android/strings/android_chrome_strings.grd
@@ -309,6 +309,9 @@ CHAR-LIMIT guidelines:
       <message name="IDS_SERVICES_CATEGORY_TITLE" desc="Title for the group of preferences that control non-personalized Google services. This group contains preferences for data that is not tied to user's Google Account.">
         Other Google services
       </message>
+      <message name="IDS_VIEW_SOURCE" desc="Title for the menu command to view the source of the current page. [CHAR-LIMIT=40]">
+        View source
+      </message>
       <message name="IDS_PREFS_GOOGLE_SERVICES" desc="Title for the group of preferences that control non-personalized Google services. This group contains preferences for data that is not tied to user's Google Account. [CHAR-LIMIT=40]">
         Google services
       </message>
-- 
2.17.1