Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Firefox/widget/android/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 14 kB

Quelle nsLookAndFeel.cpp Sprache: C

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsStyleConsts.h"
#include "nsXULAppAPI.h"
#include "nsLookAndFeel.h"
#include "Theme.h"
#include "gfxFont.h"
#include "gfxFontConstants.h"
#include "mozilla/FontPropertyTypes.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/java/GeckoAppShellWrappers.h"
#include "mozilla/java/GeckoRuntimeWrappers.h"
#include "mozilla/java/GeckoSystemStateListenerWrappers.h"
#include "ThemeColors.h"

using namespace mozilla;
using namespace mozilla::widget;

static const char16_t UNICODE_BULLET = 0x2022;

nsLookAndFeel::nsLookAndFeel() = default;

nsLookAndFeel::~nsLookAndFeel() = default;

nsresult nsLookAndFeel::GetSystemColors() {
  if (!jni::IsAvailable()) {
    return NS_ERROR_FAILURE;
  }

  auto arr = java::GeckoAppShell::GetSystemColors();
  if (!arr) {
    return NS_ERROR_FAILURE;
  }

  JNIEnv* const env = arr.Env();
  uint32_t len = static_cast<uint32_t>(env->GetArrayLength(arr.Get()));
  jint* elements = env->GetIntArrayElements(arr.Get(), 0);

  uint32_t colorsCount = sizeof(AndroidSystemColors) / sizeof(nscolor);
  if (len < colorsCount) colorsCount = len;

  // Convert Android colors to nscolor by switching R and B in the ARGB 32 bit
  // value
  nscolor* colors = (nscolor*)&mSystemColors;

  for (uint32_t i = 0; i < colorsCount; i++) {
    uint32_t androidColor = static_cast<uint32_t>(elements[i]);
    uint8_t r = (androidColor & 0x00ff0000) >> 16;
    uint8_t b = (androidColor & 0x000000ff);
    colors[i] = (androidColor & 0xff00ff00) | (b << 16) | r;
  }

  env->ReleaseIntArrayElements(arr.Get(), elements, 0);

  return NS_OK;
}

nsresult nsLookAndFeel::GetKeyboardLayoutImpl(nsACString& aLayout) {
  if (!jni::IsAvailable()) {
    return NS_ERROR_FAILURE;
  }

  auto layoutStr = java::GeckoAppShell::GetKeyboardLayout();
  if (!layoutStr) {
    return NS_ERROR_FAILURE;
  }

  aLayout.Assign(layoutStr->ToCString());
  return NS_OK;
}

void nsLookAndFeel::NativeInit() {
  EnsureInitSystemColors();
  EnsureInitShowPassword();
  RecordTelemetry();
}

void nsLookAndFeel::RefreshImpl() {
  mInitializedSystemColors = false;
  mInitializedShowPassword = false;
  nsXPLookAndFeel::RefreshImpl();
}

nsresult nsLookAndFeel::NativeGetColor(ColorID aID, ColorScheme aColorScheme,
                                       nscolor& aColor) {
  EnsureInitSystemColors();
  if (!mInitializedSystemColors) {
    // Failure to initialize colors is an error condition. Return black.
    aColor = 0;
    return NS_ERROR_FAILURE;
  }

  // Highlight/Highlighttext have native equivalents that we can map to (on
  // Android) which should work fine, regardless of the color-scheme.
  switch (aID) {
    case ColorID::Highlight: {
      // Matched to action_accent in java codebase. This works fine with both
      // light and dark color scheme.
      nscolor accent =
          Color(ColorID::Accentcolor, aColorScheme, UseStandins::No);
      aColor =
          NS_RGBA(NS_GET_R(accent), NS_GET_G(accent), NS_GET_B(accent), 78);
      return NS_OK;
    }
    case ColorID::Highlighttext:
      // Selection background is transparent enough that any foreground color
      // will do.
      aColor = NS_SAME_AS_FOREGROUND_COLOR;
      return NS_OK;
    default:
      break;
  }

  if (aColorScheme == ColorScheme::Dark) {
    if (auto darkColor = GenericDarkColor(aID)) {
      aColor = *darkColor;
      return NS_OK;
    }
  }

  // XXX we'll want to use context.obtainStyledAttributes on the java side to
  // get all of these; see TextView.java for a good example.
  auto UseNativeAccent = [this] {
    return mSystemColors.colorAccent &&
           StaticPrefs::widget_non_native_theme_use_theme_accent();
  };

  switch (aID) {
      // These colors don't seem to be used for anything anymore in Mozilla
      // The CSS2 colors below are used.
    case ColorID::ThemedScrollbarThumbInactive:
    case ColorID::ThemedScrollbarThumb:
      // We don't need to care about the Active and Hover colors because Android
      // scrollbars can't be hovered (they always have pointer-events: none).
      aColor = NS_RGBA(119, 119, 119, 102);
      break;

    case ColorID::IMESelectedRawTextBackground:
    case ColorID::IMESelectedConvertedTextBackground:
      aColor = mSystemColors.textColorHighlight;
      break;
    case ColorID::IMESelectedRawTextForeground:
    case ColorID::IMESelectedConvertedTextForeground:
      aColor = mSystemColors.textColorPrimaryInverse;
      break;
    case ColorID::IMERawInputBackground:
    case ColorID::IMEConvertedTextBackground:
      aColor = NS_TRANSPARENT;
      break;
    case ColorID::IMERawInputForeground:
    case ColorID::IMEConvertedTextForeground:
    case ColorID::IMERawInputUnderline:
    case ColorID::IMEConvertedTextUnderline:
      aColor = NS_SAME_AS_FOREGROUND_COLOR;
      break;
    case ColorID::IMESelectedRawTextUnderline:
    case ColorID::IMESelectedConvertedTextUnderline:
      aColor = NS_TRANSPARENT;
      break;

      // css2  http://www.w3.org/TR/REC-CSS2/ui.html#system-colors
    case ColorID::Activeborder:     // active window border
    case ColorID::Appworkspace:     // MDI background color
    case ColorID::Activecaption:    // active window caption background
    case ColorID::Background:       // desktop background
    case ColorID::Inactiveborder:   // inactive window border
    case ColorID::Inactivecaption:  // inactive window caption
    case ColorID::Scrollbar:        // scrollbar gray area
      aColor = mSystemColors.colorBackground;
      break;
    case ColorID::Graytext:  // disabled text in windows, menus, etc.
      aColor = NS_RGB(0xb1, 0xa5, 0x98);
      break;
    // FIXME: -moz-cellhighlight should show some kind of unfocused state.
    case ColorID::MozCellhighlight:
    case ColorID::Selecteditem:
    case ColorID::Accentcolor:
      aColor = UseNativeAccent() ? mSystemColors.colorAccent
                                 : GetStandinForNativeColor(
                                       ColorID::Accentcolor, aColorScheme);
      break;
    case ColorID::MozCellhighlighttext:
    case ColorID::Selecteditemtext:
    case ColorID::Accentcolortext:
      aColor = UseNativeAccent() ? ThemeColors::ComputeCustomAccentForeground(
                                       mSystemColors.colorAccent)
                                 : GetStandinForNativeColor(
                                       ColorID::Accentcolortext, aColorScheme);
      break;
    case ColorID::Fieldtext:
      aColor = NS_RGB(0x1a, 0x1a, 0x1a);
      break;
    case ColorID::Inactivecaptiontext:
      // text in inactive window caption
      aColor = mSystemColors.textColorTertiary;
      break;
    case ColorID::Infobackground:
      aColor = NS_RGB(0xf5, 0xf5, 0xb5);
      break;
    case ColorID::Infotext:
    case ColorID::Threeddarkshadow:  // 3-D shadow outer edge color
      aColor = NS_RGB(0x00, 0x00, 0x00);
      break;
    case ColorID::Menu:
      aColor = NS_RGB(0xf7, 0xf5, 0xf3);
      break;

    case ColorID::Buttonface:
    case ColorID::MozButtondisabledface:
    case ColorID::Threedface:
    case ColorID::Threedlightshadow:
    case ColorID::Buttonborder:
    case ColorID::MozDisabledfield:
      aColor = NS_RGB(0xec, 0xe7, 0xe2);
      break;

    case ColorID::Buttonhighlight:
    case ColorID::Field:
    case ColorID::Threedhighlight:
    case ColorID::MozCombobox:
    case ColorID::MozEventreerow:
      aColor = NS_RGB(0xff, 0xff, 0xff);
      break;

    case ColorID::Buttonshadow:
    case ColorID::Threedshadow:
      aColor = NS_RGB(0xae, 0xa1, 0x94);
      break;

    case ColorID::MozDialog:
    case ColorID::Window:
    case ColorID::Windowframe:
      aColor = NS_RGB(0xef, 0xeb, 0xe7);
      break;
    case ColorID::Buttontext:
    case ColorID::Captiontext:
    case ColorID::Menutext:
    case ColorID::MozButtonhovertext:
    case ColorID::MozDialogtext:
    case ColorID::MozComboboxtext:
    case ColorID::Windowtext:
    case ColorID::MozColheadertext:
    case ColorID::MozColheaderhovertext:
      aColor = NS_RGB(0x10, 0x10, 0x10);
      break;
    case ColorID::MozButtonhoverface:
    case ColorID::MozButtonactiveface:
      aColor = NS_RGB(0xf3, 0xf0, 0xed);
      break;
    case ColorID::MozMenuhover:
      aColor = NS_RGB(0xee, 0xee, 0xee);
      break;
    case ColorID::MozMenubarhovertext:
    case ColorID::MozMenuhovertext:
      aColor = NS_RGB(0x77, 0x77, 0x77);
      break;
    case ColorID::MozOddtreerow:
      aColor = NS_TRANSPARENT;
      break;
    case ColorID::MozNativehyperlinktext:
      aColor = NS_RGB(0, 0, 0xee);
      break;
    case ColorID::Marktext:
    case ColorID::Mark:
    case ColorID::MozAutofillBackground:
    case ColorID::SpellCheckerUnderline:
    case ColorID::TargetTextBackground:
    case ColorID::TargetTextForeground:
      aColor = GetStandinForNativeColor(aID, aColorScheme);
      break;
    default:
      /* default color is BLACK */
      aColor = 0;
      return NS_ERROR_FAILURE;
  }

  return NS_OK;
}

nsresult nsLookAndFeel::NativeGetInt(IntID aID, int32_t& aResult) {
  nsresult rv = NS_OK;

  switch (aID) {
    case IntID::ScrollbarFadeBeginDelay:
      aResult = 450;
      break;

    case IntID::ScrollbarFadeDuration:
      aResult = 300;
      break;

    case IntID::ScrollButtonLeftMouseButtonAction:
      aResult = 0;
      break;

    case IntID::ScrollButtonMiddleMouseButtonAction:
    case IntID::ScrollButtonRightMouseButtonAction:
      aResult = 3;
      break;

    case IntID::CaretBlinkTime:
      aResult = 500;
      break;

    case IntID::CaretBlinkCount:
      aResult = 10;
      break;

    case IntID::CaretWidth:
      aResult = 1;
      break;

    case IntID::SelectTextfieldsOnKeyFocus:
      // Select textfield content when focused by kbd
      // used by EventStateManager::sTextfieldSelectModel
      aResult = 1;
      break;

    case IntID::SubmenuDelay:
      aResult = 200;
      break;

    case IntID::MenusCanOverlapOSBar:
      // we want XUL popups to be able to overlap the task bar.
      aResult = 1;
      break;

    case IntID::ScrollArrowStyle:
      aResult = eScrollArrowStyle_Single;
      break;

    case IntID::UseOverlayScrollbars:
      aResult = 1;
      break;

    case IntID::SpellCheckerUnderlineStyle:
      aResult = int32_t(StyleTextDecorationStyle::Wavy);
      break;

    case IntID::ScrollbarButtonAutoRepeatBehavior:
      aResult = 0;
      break;

    case IntID::ContextMenuOffsetVertical:
    case IntID::ContextMenuOffsetHorizontal:
      aResult = 2;
      break;

    case IntID::PrefersReducedMotion:
      aResult = java::GeckoSystemStateListener::PrefersReducedMotion();
      break;

    case IntID::UseAccessibilityTheme:
    // If high contrast is enabled, enable prefers-reduced-transparency media
    // query as well as there is no dedicated option.
    case IntID::PrefersReducedTransparency:
      aResult = java::GeckoSystemStateListener::PrefersContrast();
      break;

    case IntID::InvertedColors:
      aResult = java::GeckoSystemStateListener::IsInvertedColors();
      break;

    case IntID::PrimaryPointerCapabilities:
      aResult = java::GeckoAppShell::GetAllPointerCapabilities();

      // We cannot assume what is primary device, so we use Blink's way for web
      // compatibility (https://crbug.com/136119#c6). If having coarse
      // capability in any devices, return it.
      if (aResult & static_cast<int32_t>(PointerCapabilities::Coarse)) {
        aResult = static_cast<int32_t>(PointerCapabilities::Coarse);
      }
      break;

    case IntID::AllPointerCapabilities:
      aResult = java::GeckoAppShell::GetAllPointerCapabilities();
      break;

    case IntID::SystemUsesDarkTheme: {
      java::GeckoRuntime::LocalRef runtime = java::GeckoRuntime::GetInstance();
      aResult = runtime && runtime->UsesDarkTheme();
      break;
    }

    case IntID::DragThresholdX:
    case IntID::DragThresholdY:
      // Threshold where a tap becomes a drag, in 1/240" reference pixels.
      aResult = 25;
      break;

    case IntID::TouchDeviceSupportPresent:
      // Touch support is always enabled on android.
      aResult = 1;
      break;

    case IntID::PointingDeviceKinds:
      aResult = java::GeckoAppShell::GetPointingDeviceKinds();
      break;

    default:
      aResult = 0;
      rv = NS_ERROR_FAILURE;
  }

  return rv;
}

nsresult nsLookAndFeel::NativeGetFloat(FloatID aID, float& aResult) {
  nsresult rv = NS_OK;

  switch (aID) {
    case FloatID::IMEUnderlineRelativeSize:
      aResult = 1.0f;
      break;
    case FloatID::SpellCheckerUnderlineRelativeSize:
      aResult = 1.0f;
      break;
    case FloatID::TextScaleFactor: {
      java::GeckoRuntime::LocalRef runtime = java::GeckoRuntime::GetInstance();
      aResult = runtime ? runtime->TextScaleFactor() : 1.0f;
      break;
    }
    default:
      aResult = -1.0;
      rv = NS_ERROR_FAILURE;
      break;
  }
  return rv;
}

bool nsLookAndFeel::NativeGetFont(FontID aID, nsString& aFontName,
                                  gfxFontStyle& aFontStyle) {
  aFontName.AssignLiteral("Roboto");
  aFontStyle.style = FontSlantStyle::NORMAL;
  aFontStyle.weight = FontWeight::NORMAL;
  aFontStyle.stretch = FontStretch::NORMAL;
  aFontStyle.size = 9.0 * 96.0f / 72.0f;
  aFontStyle.systemFont = true;
  return true;
}

bool nsLookAndFeel::GetEchoPasswordImpl() {
  EnsureInitShowPassword();
  return mShowPassword;
}

uint32_t nsLookAndFeel::GetPasswordMaskDelayImpl() {
  // This value is hard-coded in Android OS's PasswordTransformationMethod.java
  return 1500;
}

char16_t nsLookAndFeel::GetPasswordCharacterImpl() {
  // This value is hard-coded in Android OS's PasswordTransformationMethod.java
  return UNICODE_BULLET;
}

void nsLookAndFeel::EnsureInitSystemColors() {
  if (!mInitializedSystemColors) {
    mInitializedSystemColors = NS_SUCCEEDED(GetSystemColors());
  }
}

void nsLookAndFeel::EnsureInitShowPassword() {
  if (!mInitializedShowPassword && jni::IsAvailable()) {
    mShowPassword = java::GeckoAppShell::GetShowPasswordSetting();
    mInitializedShowPassword = true;
  }
}

quality100%

¤ Dauer der Verarbeitung: 0.37 Sekunden (vorverarbeitet) ¤

über den Urheber dieser Seite

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.