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

License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
---
 .../android/java/res/menu/custom_tabs_menu.xml |  3 +++
 chrome/android/java/res/menu/main_menu.xml     |  3 +++
 .../chrome/browser/ChromeTabbedActivity.java   |  2 ++
 .../chrome/browser/app/ChromeActivity.java     |  5 +++++
 .../appmenu/AppMenuPropertiesDelegateImpl.java | 18 ++++++++++++++++++
 .../CustomTabAppMenuPropertiesDelegate.java    |  1 +
 .../android/strings/android_chrome_strings.grd |  4 ++++
 7 files changed, 36 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
@@ -55,6 +55,9 @@ found in the LICENSE file.
         <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/install_webapp_id"
             android:title="@string/menu_install_webapp"
             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
@@ -113,6 +113,9 @@ found in the LICENSE file.
         <item android:id="@+id/add_to_homescreen_id"
             android:title="@string/menu_add_to_homescreen"
             android:icon="@drawable/ic_add_to_home_screen" />
+        <item android:id="@+id/view_source_id"
+            android:title="@string/view_source"
+            android:icon="@drawable/ic_drive_document_24dp" />
         <item android:id="@+id/install_webapp_id"
             android:title="@string/menu_install_webapp"
             android:icon="@drawable/ic_install_webapp" />
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
@@ -2319,6 +2319,8 @@ public class ChromeTabbedActivity extends ChromeActivity<ChromeActivityComponent
                 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.getUrl().getSpec()));
         } else if (id == R.id.open_recently_closed_tab) {
             TabModel currentModel = mTabModelSelector.getCurrentModel();
             if (!currentModel.isIncognito()) currentModel.openMostRecentlyClosedEntry();
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java
@@ -2519,6 +2519,11 @@ public abstract class ChromeActivity<C extends ChromeActivityComponent>
             return doOpenWebApk(currentTab);
         }
 
+        if (id == R.id.view_source_id) {
+            currentTab.getWebContents().getNavigationController().loadUrl(new LoadUrlParams("view-source:"+currentTab.getUrl().getSpec()));
+            return true;
+        }
+
         if (id == R.id.request_desktop_site_id || id == R.id.request_desktop_site_check_id) {
             boolean usingDesktopUserAgent =
                     currentTab.getWebContents().getNavigationController().getUseDesktopUserAgent();
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
@@ -550,6 +550,7 @@ public class AppMenuPropertiesDelegateImpl implements AppMenuPropertiesDelegate
                         isChromeScheme, isFileScheme, isContentScheme, isIncognito, url));
 
         updateRequestDesktopSiteMenuItem(menu, currentTab, true /* can show */, isChromeScheme);
+        updateViewSourceMenuItem(menu, currentTab);
 
         updateAutoDarkMenuItem(menu, currentTab, isChromeScheme);
 
@@ -1142,6 +1143,23 @@ 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);
+        boolean visible = false;
+        if (currentTab != null) {
+                String url = currentTab.getUrl().getSpec();
+                visible = !url.isEmpty() && !url.startsWith("view-source:");
+        }
+        viewSourceMenuItem.setVisible(visible);
+    }
+
     /**
      * 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
@@ -241,6 +241,7 @@ public class CustomTabAppMenuPropertiesDelegate extends AppMenuPropertiesDelegat
 
             updateRequestDesktopSiteMenuItem(
                     menu, currentTab, requestDesktopSiteVisible, isChromeScheme);
+            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
@@ -314,6 +314,10 @@ CHAR_LIMIT guidelines:
         USB
       </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>
+
       <!-- Sign-in, sync and personalization preferences -->
       <message name="IDS_PREFS_SECTION_ACCOUNT_AND_GOOGLE_SERVICES" desc="Title for the group of account-related entries and google services in Settings. [CHAR_LIMIT=32]">
         You and Google
--
2.25.1