content/common/view_message_enums.h

   1 // Copyright (c) 2012 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 CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_
   6 #define CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_
   7
   8 #include "ipc/ipc_message_macros.h"
   9
  10 // Values that may be OR'd together to form the 'flags' parameter of a
  11 // ViewHostMsg_UpdateRect_Params structure.
  12 struct ViewHostMsg_UpdateRect_Flags {
  13   enum {
  14     IS_RESIZE_ACK = 1 << 0,
  15     IS_RESTORE_ACK = 1 << 1,
  16     IS_REPAINT_ACK = 1 << 2,
  17   };
  18   static bool is_resize_ack(int flags) {
  19     return (flags & IS_RESIZE_ACK) != 0;
  20   }
  21   static bool is_restore_ack(int flags) {
  22     return (flags & IS_RESTORE_ACK) != 0;
  23   }
  24   static bool is_repaint_ack(int flags) {
  25     return (flags & IS_REPAINT_ACK) != 0;
  26   }
  27 };
  28
  29 struct ViewMsg_Navigate_Type {
  30  public:
  31   enum Value {
  32     // Reload the page.
  33     RELOAD,
  34
  35     // Reload the page, ignoring any cache entries.
  36     RELOAD_IGNORING_CACHE,
  37
  38     // Reload the page using the original request URL.
  39     RELOAD_ORIGINAL_REQUEST_URL,
  40
  41     // The navigation is the result of session restore and should honor the
  42     // page's cache policy while restoring form state. This is set to true if
  43     // restoring a tab/session from the previous session and the previous
  44     // session did not crash. If this is not set and the page was restored then
  45     // the page's cache policy is ignored and we load from the cache.
  46     RESTORE,
  47
  48     // Like RESTORE, except that the navigation contains POST data.
  49     RESTORE_WITH_POST,
  50
  51     // Navigation type not categorized by the other types.
  52     NORMAL
  53   };
  54 };
  55
  56 enum AccessibilityMode {
  57   // WebKit accessibility is off and no accessibility information is
  58   // sent from the renderer to the browser process.
  59   AccessibilityModeOff,
  60
  61   // WebKit accessibility is on, but only limited information about
  62   // editable text nodes is sent to the browser process. Useful for
  63   // implementing limited UIA on tablets.
  64   AccessibilityModeEditableTextOnly,
  65
  66   // WebKit accessibility is on, and the full accessibility tree is synced
  67   // to the browser process. Useful for screen readers and magnifiers.
  68   AccessibilityModeComplete,
  69 };
  70
  71 #endif  // CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_