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Unified Diff: Source/web/win/WebInputEventFactory.cpp

Issue 26247009: Remove web/{android, gtk, win} (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Reworked on comments! Created 7 years, 2 months ago
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Index: Source/web/win/WebInputEventFactory.cpp
diff --git a/Source/web/win/WebInputEventFactory.cpp b/Source/web/win/WebInputEventFactory.cpp
deleted file mode 100644
index 11f83429258bfdaa9914fa07cc921d1175bb1453..0000000000000000000000000000000000000000
--- a/Source/web/win/WebInputEventFactory.cpp
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- * Copyright (C) 2006-2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "WebInputEventFactory.h"
-
-#include "WebInputEvent.h"
-
-#include "wtf/Assertions.h"
-
-namespace WebKit {
-
-static const unsigned long defaultScrollLinesPerWheelDelta = 3;
-static const unsigned long defaultScrollCharsPerWheelDelta = 1;
-
-// WebKeyboardEvent -----------------------------------------------------------
-
-static bool isKeyDown(WPARAM wparam)
-{
- return GetKeyState(wparam) & 0x8000;
-}
-
-static int getLocationModifier(WPARAM wparam, LPARAM lparam)
-{
- int modifier = 0;
- switch (wparam) {
- case VK_RETURN:
- if ((lparam >> 16) & KF_EXTENDED)
- modifier = WebInputEvent::IsKeyPad;
- break;
- case VK_INSERT:
- case VK_DELETE:
- case VK_HOME:
- case VK_END:
- case VK_PRIOR:
- case VK_NEXT:
- case VK_UP:
- case VK_DOWN:
- case VK_LEFT:
- case VK_RIGHT:
- if (!((lparam >> 16) & KF_EXTENDED))
- modifier = WebInputEvent::IsKeyPad;
- break;
- case VK_NUMPAD0:
- case VK_NUMPAD1:
- case VK_NUMPAD2:
- case VK_NUMPAD3:
- case VK_NUMPAD4:
- case VK_NUMPAD5:
- case VK_NUMPAD6:
- case VK_NUMPAD7:
- case VK_NUMPAD8:
- case VK_NUMPAD9:
- case VK_DIVIDE:
- case VK_MULTIPLY:
- case VK_SUBTRACT:
- case VK_ADD:
- case VK_DECIMAL:
- case VK_CLEAR:
- modifier = WebInputEvent::IsKeyPad;
- break;
- case VK_SHIFT:
- if (isKeyDown(VK_LSHIFT))
- modifier = WebInputEvent::IsLeft;
- else if (isKeyDown(VK_RSHIFT))
- modifier = WebInputEvent::IsRight;
- break;
- case VK_CONTROL:
- if (isKeyDown(VK_LCONTROL))
- modifier = WebInputEvent::IsLeft;
- else if (isKeyDown(VK_RCONTROL))
- modifier = WebInputEvent::IsRight;
- break;
- case VK_MENU:
- if (isKeyDown(VK_LMENU))
- modifier = WebInputEvent::IsLeft;
- else if (isKeyDown(VK_RMENU))
- modifier = WebInputEvent::IsRight;
- break;
- case VK_LWIN:
- modifier = WebInputEvent::IsLeft;
- break;
- case VK_RWIN:
- modifier = WebInputEvent::IsRight;
- break;
- }
-
- ASSERT(!modifier
- || modifier == WebInputEvent::IsKeyPad
- || modifier == WebInputEvent::IsLeft
- || modifier == WebInputEvent::IsRight);
- return modifier;
-}
-
-// Loads the state for toggle keys into the event.
-static void SetToggleKeyState(WebInputEvent* event)
-{
- // Low bit set from GetKeyState indicates "toggled".
- if (::GetKeyState(VK_NUMLOCK) & 1)
- event->modifiers |= WebInputEvent::NumLockOn;
- if (::GetKeyState(VK_CAPITAL) & 1)
- event->modifiers |= WebInputEvent::CapsLockOn;
-}
-
-WebKeyboardEvent WebInputEventFactory::keyboardEvent(HWND hwnd, UINT message,
- WPARAM wparam, LPARAM lparam)
-{
- WebKeyboardEvent result;
-
- // TODO(pkasting): http://b/1117926 Are we guaranteed that the message that
- // GetMessageTime() refers to is the same one that we're passed in? Perhaps
- // one of the construction parameters should be the time passed by the
- // caller, who would know for sure.
- result.timeStampSeconds = GetMessageTime() / 1000.0;
-
- result.windowsKeyCode = static_cast<int>(wparam);
- // Record the scan code (along with other context bits) for this key event.
- result.nativeKeyCode = static_cast<int>(lparam);
-
- switch (message) {
- case WM_SYSKEYDOWN:
- result.isSystemKey = true;
- case WM_KEYDOWN:
- result.type = WebInputEvent::RawKeyDown;
- break;
- case WM_SYSKEYUP:
- result.isSystemKey = true;
- case WM_KEYUP:
- result.type = WebInputEvent::KeyUp;
- break;
- case WM_IME_CHAR:
- result.type = WebInputEvent::Char;
- break;
- case WM_SYSCHAR:
- result.isSystemKey = true;
- result.type = WebInputEvent::Char;
- case WM_CHAR:
- result.type = WebInputEvent::Char;
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-
- if (result.type == WebInputEvent::Char || result.type == WebInputEvent::RawKeyDown) {
- result.text[0] = result.windowsKeyCode;
- result.unmodifiedText[0] = result.windowsKeyCode;
- }
- if (result.type != WebInputEvent::Char)
- result.setKeyIdentifierFromWindowsKeyCode();
-
- if (GetKeyState(VK_SHIFT) & 0x8000)
- result.modifiers |= WebInputEvent::ShiftKey;
- if (GetKeyState(VK_CONTROL) & 0x8000)
- result.modifiers |= WebInputEvent::ControlKey;
- if (GetKeyState(VK_MENU) & 0x8000)
- result.modifiers |= WebInputEvent::AltKey;
- // NOTE: There doesn't seem to be a way to query the mouse button state in
- // this case.
-
- if (LOWORD(lparam) > 1)
- result.modifiers |= WebInputEvent::IsAutoRepeat;
-
- result.modifiers |= getLocationModifier(wparam, lparam);
-
- SetToggleKeyState(&result);
- return result;
-}
-
-// WebMouseEvent --------------------------------------------------------------
-
-static int gLastClickCount;
-static double gLastClickTime;
-
-static LPARAM GetRelativeCursorPos(HWND hwnd)
-{
- POINT pos = {-1, -1};
- GetCursorPos(&pos);
- ScreenToClient(hwnd, &pos);
- return MAKELPARAM(pos.x, pos.y);
-}
-
-void WebInputEventFactory::resetLastClickState()
-{
- gLastClickTime = gLastClickCount = 0;
-}
-
-WebMouseEvent WebInputEventFactory::mouseEvent(HWND hwnd, UINT message,
- WPARAM wparam, LPARAM lparam)
-{
- WebMouseEvent result; //(WebInputEvent::Uninitialized());
-
- switch (message) {
- case WM_MOUSEMOVE:
- result.type = WebInputEvent::MouseMove;
- if (wparam & MK_LBUTTON)
- result.button = WebMouseEvent::ButtonLeft;
- else if (wparam & MK_MBUTTON)
- result.button = WebMouseEvent::ButtonMiddle;
- else if (wparam & MK_RBUTTON)
- result.button = WebMouseEvent::ButtonRight;
- else
- result.button = WebMouseEvent::ButtonNone;
- break;
- case WM_MOUSELEAVE:
- result.type = WebInputEvent::MouseLeave;
- result.button = WebMouseEvent::ButtonNone;
- // set the current mouse position (relative to the client area of the
- // current window) since none is specified for this event
- lparam = GetRelativeCursorPos(hwnd);
- break;
- case WM_LBUTTONDOWN:
- case WM_LBUTTONDBLCLK:
- result.type = WebInputEvent::MouseDown;
- result.button = WebMouseEvent::ButtonLeft;
- break;
- case WM_MBUTTONDOWN:
- case WM_MBUTTONDBLCLK:
- result.type = WebInputEvent::MouseDown;
- result.button = WebMouseEvent::ButtonMiddle;
- break;
- case WM_RBUTTONDOWN:
- case WM_RBUTTONDBLCLK:
- result.type = WebInputEvent::MouseDown;
- result.button = WebMouseEvent::ButtonRight;
- break;
- case WM_LBUTTONUP:
- result.type = WebInputEvent::MouseUp;
- result.button = WebMouseEvent::ButtonLeft;
- break;
- case WM_MBUTTONUP:
- result.type = WebInputEvent::MouseUp;
- result.button = WebMouseEvent::ButtonMiddle;
- break;
- case WM_RBUTTONUP:
- result.type = WebInputEvent::MouseUp;
- result.button = WebMouseEvent::ButtonRight;
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-
- // TODO(pkasting): http://b/1117926 Are we guaranteed that the message that
- // GetMessageTime() refers to is the same one that we're passed in? Perhaps
- // one of the construction parameters should be the time passed by the
- // caller, who would know for sure.
- result.timeStampSeconds = GetMessageTime() / 1000.0;
-
- // set position fields:
-
- result.x = static_cast<short>(LOWORD(lparam));
- result.y = static_cast<short>(HIWORD(lparam));
- result.windowX = result.x;
- result.windowY = result.y;
-
- POINT globalPoint = { result.x, result.y };
- ClientToScreen(hwnd, &globalPoint);
-
- result.globalX = globalPoint.x;
- result.globalY = globalPoint.y;
-
- // calculate number of clicks:
-
- // This differs slightly from the WebKit code in WebKit/win/WebView.cpp
- // where their original code looks buggy.
- static int lastClickPositionX;
- static int lastClickPositionY;
- static WebMouseEvent::Button lastClickButton = WebMouseEvent::ButtonLeft;
-
- double currentTime = result.timeStampSeconds;
- bool cancelPreviousClick =
- (abs(lastClickPositionX - result.x) > (GetSystemMetrics(SM_CXDOUBLECLK) / 2))
- || (abs(lastClickPositionY - result.y) > (GetSystemMetrics(SM_CYDOUBLECLK) / 2))
- || ((currentTime - gLastClickTime) * 1000.0 > GetDoubleClickTime());
-
- if (result.type == WebInputEvent::MouseDown) {
- if (!cancelPreviousClick && (result.button == lastClickButton))
- ++gLastClickCount;
- else {
- gLastClickCount = 1;
- lastClickPositionX = result.x;
- lastClickPositionY = result.y;
- }
- gLastClickTime = currentTime;
- lastClickButton = result.button;
- } else if (result.type == WebInputEvent::MouseMove
- || result.type == WebInputEvent::MouseLeave) {
- if (cancelPreviousClick) {
- gLastClickCount = 0;
- lastClickPositionX = 0;
- lastClickPositionY = 0;
- gLastClickTime = 0;
- }
- }
- result.clickCount = gLastClickCount;
-
- // set modifiers:
-
- if (wparam & MK_CONTROL)
- result.modifiers |= WebInputEvent::ControlKey;
- if (wparam & MK_SHIFT)
- result.modifiers |= WebInputEvent::ShiftKey;
- if (GetKeyState(VK_MENU) & 0x8000)
- result.modifiers |= WebInputEvent::AltKey;
- if (wparam & MK_LBUTTON)
- result.modifiers |= WebInputEvent::LeftButtonDown;
- if (wparam & MK_MBUTTON)
- result.modifiers |= WebInputEvent::MiddleButtonDown;
- if (wparam & MK_RBUTTON)
- result.modifiers |= WebInputEvent::RightButtonDown;
-
- SetToggleKeyState(&result);
- return result;
-}
-
-// WebMouseWheelEvent ---------------------------------------------------------
-
-WebMouseWheelEvent WebInputEventFactory::mouseWheelEvent(HWND hwnd, UINT message,
- WPARAM wparam, LPARAM lparam)
-{
- WebMouseWheelEvent result; //(WebInputEvent::Uninitialized());
-
- result.type = WebInputEvent::MouseWheel;
-
- // TODO(pkasting): http://b/1117926 Are we guaranteed that the message that
- // GetMessageTime() refers to is the same one that we're passed in? Perhaps
- // one of the construction parameters should be the time passed by the
- // caller, who would know for sure.
- result.timeStampSeconds = GetMessageTime() / 1000.0;
-
- result.button = WebMouseEvent::ButtonNone;
-
- // Get key state, coordinates, and wheel delta from event.
- typedef SHORT (WINAPI *GetKeyStateFunction)(int key);
- GetKeyStateFunction getKeyState;
- UINT keyState;
- float wheelDelta;
- bool horizontalScroll = false;
- if ((message == WM_VSCROLL) || (message == WM_HSCROLL)) {
- // Synthesize mousewheel event from a scroll event. This is needed to
- // simulate middle mouse scrolling in some laptops. Use GetAsyncKeyState
- // for key state since we are synthesizing the input event.
- getKeyState = GetAsyncKeyState;
- keyState = 0;
- if (getKeyState(VK_SHIFT))
- keyState |= MK_SHIFT;
- if (getKeyState(VK_CONTROL))
- keyState |= MK_CONTROL;
- // NOTE: There doesn't seem to be a way to query the mouse button state
- // in this case.
-
- POINT cursorPosition = {0};
- GetCursorPos(&cursorPosition);
- result.globalX = cursorPosition.x;
- result.globalY = cursorPosition.y;
-
- switch (LOWORD(wparam)) {
- case SB_LINEUP: // == SB_LINELEFT
- wheelDelta = WHEEL_DELTA;
- break;
- case SB_LINEDOWN: // == SB_LINERIGHT
- wheelDelta = -WHEEL_DELTA;
- break;
- case SB_PAGEUP:
- wheelDelta = 1;
- result.scrollByPage = true;
- break;
- case SB_PAGEDOWN:
- wheelDelta = -1;
- result.scrollByPage = true;
- break;
- default: // We don't supoprt SB_THUMBPOSITION or SB_THUMBTRACK here.
- wheelDelta = 0;
- break;
- }
-
- if (message == WM_HSCROLL)
- horizontalScroll = true;
- } else {
- // Non-synthesized event; we can just read data off the event.
- getKeyState = GetKeyState;
- keyState = GET_KEYSTATE_WPARAM(wparam);
-
- result.globalX = static_cast<short>(LOWORD(lparam));
- result.globalY = static_cast<short>(HIWORD(lparam));
-
- wheelDelta = static_cast<float>(GET_WHEEL_DELTA_WPARAM(wparam));
- if (message == WM_MOUSEHWHEEL) {
- horizontalScroll = true;
- wheelDelta = -wheelDelta; // Windows is <- -/+ ->, WebKit <- +/- ->.
- }
- }
- if (keyState & MK_SHIFT)
- horizontalScroll = true;
-
- // Set modifiers based on key state.
- if (keyState & MK_SHIFT)
- result.modifiers |= WebInputEvent::ShiftKey;
- if (keyState & MK_CONTROL)
- result.modifiers |= WebInputEvent::ControlKey;
- if (getKeyState(VK_MENU) & 0x8000)
- result.modifiers |= WebInputEvent::AltKey;
- if (keyState & MK_LBUTTON)
- result.modifiers |= WebInputEvent::LeftButtonDown;
- if (keyState & MK_MBUTTON)
- result.modifiers |= WebInputEvent::MiddleButtonDown;
- if (keyState & MK_RBUTTON)
- result.modifiers |= WebInputEvent::RightButtonDown;
-
- SetToggleKeyState(&result);
-
- // Set coordinates by translating event coordinates from screen to client.
- POINT clientPoint = { result.globalX, result.globalY };
- MapWindowPoints(0, hwnd, &clientPoint, 1);
- result.x = clientPoint.x;
- result.y = clientPoint.y;
- result.windowX = result.x;
- result.windowY = result.y;
-
- // Convert wheel delta amount to a number of pixels to scroll.
- //
- // How many pixels should we scroll per line? Gecko uses the height of the
- // current line, which means scroll distance changes as you go through the
- // page or go to different pages. IE 8 is ~60 px/line, although the value
- // seems to vary slightly by page and zoom level. Also, IE defaults to
- // smooth scrolling while Firefox doesn't, so it can get away with somewhat
- // larger scroll values without feeling as jerky. Here we use 100 px per
- // three lines (the default scroll amount is three lines per wheel tick).
- // Even though we have smooth scrolling, we don't make this as large as IE
- // because subjectively IE feels like it scrolls farther than you want while
- // reading articles.
- static const float scrollbarPixelsPerLine = 100.0f / 3.0f;
- wheelDelta /= WHEEL_DELTA;
- float scrollDelta = wheelDelta;
- if (horizontalScroll) {
- unsigned long scrollChars = defaultScrollCharsPerWheelDelta;
- SystemParametersInfo(SPI_GETWHEELSCROLLCHARS, 0, &scrollChars, 0);
- // TODO(pkasting): Should probably have a different multiplier
- // scrollbarPixelsPerChar here.
- scrollDelta *= static_cast<float>(scrollChars) * scrollbarPixelsPerLine;
- } else {
- unsigned long scrollLines = defaultScrollLinesPerWheelDelta;
- SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &scrollLines, 0);
- if (scrollLines == WHEEL_PAGESCROLL)
- result.scrollByPage = true;
- if (!result.scrollByPage)
- scrollDelta *= static_cast<float>(scrollLines) * scrollbarPixelsPerLine;
- }
-
- // Set scroll amount based on above calculations. WebKit expects positive
- // deltaY to mean "scroll up" and positive deltaX to mean "scroll left".
- if (horizontalScroll) {
- result.deltaX = scrollDelta;
- result.wheelTicksX = wheelDelta;
- } else {
- result.deltaY = scrollDelta;
- result.wheelTicksY = wheelDelta;
- }
-
- return result;
-}
-
-} // namespace WebKit
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