dom/base/ViewportMetaData.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef DOM_VIEWPORT_META_DATA_H_
   8 #define DOM_VIEWPORT_META_DATA_H_
   9
  10 #include "nsString.h"
  11 #include "nsAString.h"
  12
  13 namespace mozilla::dom {
  14 struct ViewportMetaData {
  15   // https://drafts.csswg.org/css-device-adapt/#meta-properties
  16   nsString mWidth;
  17   nsString mHeight;
  18   nsString mInitialScale;
  19   nsString mMinimumScale;
  20   nsString mMaximumScale;
  21   nsString mUserScalable;
  22   nsString mViewportFit;
  23
  24   bool operator==(const ViewportMetaData& aOther) const {
  25     return mWidth == aOther.mWidth && mHeight == aOther.mHeight &&
  26            mInitialScale == aOther.mInitialScale &&
  27            mMinimumScale == aOther.mMinimumScale &&
  28            mMaximumScale == aOther.mMaximumScale &&
  29            mUserScalable == aOther.mUserScalable &&
  30            mViewportFit == aOther.mViewportFit;
  31   }
  32   bool operator!=(const ViewportMetaData& aOther) const {
  33     return !(*this == aOther);
  34   }
  35
  36   ViewportMetaData() = default;
  37   /* Process viewport META data. This gives us information for the scale
  38    * and zoom of a page on mobile devices. We stick the information in
  39    * the document header and use it later on after rendering.
  40    *
  41    * See Bug #436083
  42    */
  43   explicit ViewportMetaData(const nsAString& aViewportInfo);
  44 };
  45
  46 }  // namespace mozilla::dom
  47
  48 #endif  // DOM_VIEWPORT_META_DATA_H_