third_party/WebKit/public/web/WebContentSettingsClient.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WebContentSettingsClient_h
   6 #define WebContentSettingsClient_h
   7
   8 #include "public/platform/WebContentSettingCallbacks.h"
   9
  10 namespace blink {
  11
  12 class WebSecurityOrigin;
  13 class WebString;
  14 class WebURL;
  15
  16 class WebContentSettingsClient {
  17 public:
  18     // Controls whether access to Web Databases is allowed for this frame.
  19     virtual bool allowDatabase(const WebString& name, const WebString& displayName, unsigned long estimatedSize) { return true; }
  20
  21     // Controls whether access to File System is allowed for this frame.
  22     virtual bool requestFileSystemAccessSync() { return true; }
  23
  24     // Controls whether access to File System is allowed for this frame.
  25     virtual void requestFileSystemAccessAsync(const WebContentSettingCallbacks& callbacks) { WebContentSettingCallbacks permissionCallbacks(callbacks); permissionCallbacks.doAllow(); }
  26
  27     // Controls whether images are allowed for this frame.
  28     virtual bool allowImage(bool enabledPerSettings, const WebURL& imageURL) { return enabledPerSettings; }
  29
  30     // Controls whether access to Indexed DB are allowed for this frame.
  31     virtual bool allowIndexedDB(const WebString& name, const WebSecurityOrigin&) { return true; }
  32
  33     // Controls whether HTML5 media elements (<audio>, <video>) are allowed for this frame.
  34     virtual bool allowMedia(const WebURL& videoURL) { return true; }
  35
  36     // Controls whether plugins are allowed for this frame.
  37     virtual bool allowPlugins(bool enabledPerSettings) { return enabledPerSettings; }
  38
  39     // Controls whether scripts are allowed to execute for this frame.
  40     virtual bool allowScript(bool enabledPerSettings) { return enabledPerSettings; }
  41
  42     // Controls whether scripts loaded from the given URL are allowed to execute for this frame.
  43     virtual bool allowScriptFromSource(bool enabledPerSettings, const WebURL& scriptURL) { return enabledPerSettings; }
  44
  45     // Controls whether insecrure content is allowed to display for this frame.
  46     virtual bool allowDisplayingInsecureContent(bool enabledPerSettings, const WebSecurityOrigin&, const WebURL&) { return enabledPerSettings; }
  47
  48     // Controls whether insecrure scripts are allowed to execute for this frame.
  49     virtual bool allowRunningInsecureContent(bool enabledPerSettings, const WebSecurityOrigin&, const WebURL&) { return enabledPerSettings; }
  50
  51     // Controls whether the given script extension should run in a new script
  52     // context in this frame. If extensionGroup is 0, the script context is the
  53     // frame's main context. Otherwise, it is a context created by
  54     // WebLocalFrame::executeScriptInIsolatedWorld with that same extensionGroup
  55     // value.
  56     virtual bool allowScriptExtension(const WebString& extensionName, int extensionGroup) { return true; }
  57
  58     virtual bool allowScriptExtension(const WebString& extensionName, int extensionGroup, int worldId)
  59     {
  60         return allowScriptExtension(extensionName, extensionGroup);
  61     }
  62
  63     // Controls whether HTML5 Web Storage is allowed for this frame.
  64     // If local is true, then this is for local storage, otherwise it's for session storage.
  65     virtual bool allowStorage(bool local) { return true; }
  66
  67     // Controls whether access to read the clipboard is allowed for this frame.
  68     virtual bool allowReadFromClipboard(bool defaultValue) { return defaultValue; }
  69
  70     // Controls whether access to write the clipboard is allowed for this frame.
  71     virtual bool allowWriteToClipboard(bool defaultValue) { return defaultValue; }
  72
  73     // Controls whether enabling Web Components API for this frame.
  74     virtual bool allowWebComponents(bool defaultValue) { return defaultValue; }
  75
  76     // Controls whether to enable MutationEvents for this frame.
  77     // The common use case of this method is actually to selectively disable MutationEvents,
  78     // but it's been named for consistency with the rest of the interface.
  79     virtual bool allowMutationEvents(bool defaultValue) { return defaultValue; }
  80
  81     // Notifies the client that the frame would have instantiated a plugin if plugins were enabled.
  82     virtual void didNotAllowPlugins() { }
  83
  84     // Notifies the client that the frame would have executed script if script were enabled.
  85     virtual void didNotAllowScript() { }
  86
  87     virtual ~WebContentSettingsClient() { }
  88 };
  89
  90 } // namespace blink
  91
  92 #endif // WebContentSettingsClient_h