[Pkg-javascript-commits] [pdf.js] 46/246: Managed preferences for Chrome administrators

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commit 00746011a363c9c771c69495d2cfa87f3c6bb2d5
Author: Rob Wu <rob at robwu.nl>
Date:   Thu Jul 24 23:19:17 2014 +0200

    Managed preferences for Chrome administrators
    
    Implement support for managed preferences. This feature allows users
    (administrators) to easily change the default settings of the PDF Viewer for
    all Chrome or Chromium browsers within their organization.
    
    External resources for end users (administrators)
    
    - http://www.chromium.org/administrators/
    - http://www.chromium.org/administrators/configuring-policy-for-extensions
    - http://www.chromium.org/administrators/windows-quick-start
    - http://www.chromium.org/administrators/mac-quick-start
    - http://www.chromium.org/administrators/linux-quick-start
    - http://www.chromium.org/administrators/policy-templates
    
    Administrators can read one of the previous links to learn more about creating
    policies. We want to auto-generate these templates, but there are no public
    tools for doing that. It will be added in the future, see:
    https://code.google.com/p/chromium/issues/detail?id=389061
    
    Resources for PDF.js/extension developers
    
    - http://cs.chromium.org/file:policy_templates.json
    - https://developer.chrome.com/extensions/manifest/storage
---
 extensions/chromium/manifest.json           |  3 ++
 extensions/chromium/preferences_schema.json | 68 +++++++++++++++++++++++++++++
 web/default_preferences.js                  |  3 ++
 web/preferences.js                          | 41 ++++++++++++++++-
 4 files changed, 114 insertions(+), 1 deletion(-)

diff --git a/extensions/chromium/manifest.json b/extensions/chromium/manifest.json
index 214787f..2448a98 100644
--- a/extensions/chromium/manifest.json
+++ b/extensions/chromium/manifest.json
@@ -40,6 +40,9 @@
   "mime_types": [
     "application/pdf"
   ],
+  "storage": {
+    "managed_schema": "preferences_schema.json"
+  },
   "background": {
     "page": "pdfHandler.html"
   },
diff --git a/extensions/chromium/preferences_schema.json b/extensions/chromium/preferences_schema.json
new file mode 100644
index 0000000..e80f668
--- /dev/null
+++ b/extensions/chromium/preferences_schema.json
@@ -0,0 +1,68 @@
+{
+  "type": "object",
+  "properties": {
+    "showPreviousViewOnLoad": {
+      "title": "Resume view on load",
+      "description": "Whether to view PDF documents in the last page and position upon opening the viewer.",
+      "type": "boolean",
+      "default": true
+    },
+    "defaultZoomValue": {
+      "title": "Default zoom level",
+      "description": "Default zoom level of the viewer. Accepted values: 'auto', 'page-actual', 'page-width', 'page-height', 'page-fit', or a zoom level in percents.",
+      "type": "string",
+      "pattern": "|auto|page-actual|page-width|page-height|page-fit|[0-9]+\\.?[0-9]*(,[0-9]+\\.?[0-9]*){0,2}",
+      "default": ""
+    },
+    "sidebarViewOnLoad": {
+      "title": "Sidebar state on load",
+      "description": "Controls the state of the sidebar upon load.\n 0 = do not show sidebar.\n 1 = show thumbnails in sidebar.\n 2 = show document outline in sidebar.\n 3 = Show attachments in sidebar.",
+      "type": "integer",
+      "enum": [
+        0,
+        1,
+        2,
+        3
+      ],
+      "default": 0
+    },
+    "enableHandToolOnLoad": {
+      "title": "Activate Hand tool by default",
+      "description": "Whether to activate the hand tool by default.",
+      "type": "boolean",
+      "default": false
+    },
+    "enableWebGL": {
+      "title": "Enable WebGL",
+      "description": "Whether to enable WebGL.",
+      "type": "boolean",
+      "default": false
+    },
+    "disableRange": {
+      "title": "Disable range requests",
+      "description": "Whether to disable range requests (not recommended).",
+      "type": "boolean",
+      "default": false
+    },
+    "disableAutoFetch": {
+      "type": "boolean",
+      "default": false
+    },
+    "disableFontFace": {
+      "title": "Disable @font-face",
+      "description": "Whether to disable @font-face and fall back to canvas rendering (this is more resource-intensive).",
+      "type": "boolean",
+      "default": false
+    },
+    "disableTextLayer": {
+      "title": "Disable text selection layer",
+      "description": "Whether to disable the text selection layer.",
+      "type": "boolean",
+      "default": false
+    },
+    "useOnlyCssZoom": {
+      "type": "boolean",
+      "default": false
+    }
+  }
+}
diff --git a/web/default_preferences.js b/web/default_preferences.js
index 51a1bcb..e02d947 100644
--- a/web/default_preferences.js
+++ b/web/default_preferences.js
@@ -18,6 +18,9 @@
 
 'use strict';
 
+//#if CHROME
+////Note: Keep in sync with extensions/chromium/preferences_schema.json !
+//#endif
 var DEFAULT_PREFERENCES = {
   showPreviousViewOnLoad: true,
   defaultZoomValue: '',
diff --git a/web/preferences.js b/web/preferences.js
index c1082dd..92f0dc6 100644
--- a/web/preferences.js
+++ b/web/preferences.js
@@ -178,7 +178,46 @@ var Preferences = {
 //};
 //#endif
 
-//#if !(FIREFOX || MOZCENTRAL || B2G)
+//#if CHROME
+//Preferences._writeToStorage = function (prefObj) {
+//  return new Promise(function (resolve) {
+//    if (prefObj == DEFAULT_PREFERENCES) {
+//      var keysToRemove = Object.keys(DEFAULT_PREFERENCES);
+//      // If the storage is reset, remove the keys so that the values from
+//      // managed storage are applied again.
+//      chrome.storage.local.remove(keysToRemove, function() {
+//        resolve();
+//      });
+//    } else {
+//      chrome.storage.local.set(prefObj, function() {
+//        resolve();
+//      });
+//    }
+//  });
+//};
+//
+//Preferences._readFromStorage = function (prefObj) {
+//  return new Promise(function (resolve) {
+//    if (chrome.storage.managed) {
+//      // Get preferences as set by the system administrator.
+//      // See extensions/chromium/preferences_schema.json for more information.
+//      // These preferences can be overridden by the user.
+//      chrome.storage.managed.get(DEFAULT_PREFERENCES, getPreferences);
+//    } else {
+//      // Managed storage not supported, e.g. in Opera.
+//      getPreferences(DEFAULT_PREFERENCES);
+//    }
+//
+//    function getPreferences(defaultPrefs) {
+//      chrome.storage.local.get(defaultPrefs, function(readPrefs) {
+//        resolve(readPrefs);
+//      });
+//    }
+//  });
+//};
+//#endif
+
+//#if !(FIREFOX || MOZCENTRAL || B2G || CHROME)
 Preferences._writeToStorage = function (prefObj) {
   return new Promise(function (resolve) {
     localStorage.setItem('pdfjs.preferences', JSON.stringify(prefObj));

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