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Diffstat (limited to 'Source/WebKit/chromium/src/win/WebInputEventFactory.cpp')
| -rw-r--r-- | Source/WebKit/chromium/src/win/WebInputEventFactory.cpp | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/Source/WebKit/chromium/src/win/WebInputEventFactory.cpp b/Source/WebKit/chromium/src/win/WebInputEventFactory.cpp deleted file mode 100644 index a177ea244..000000000 --- a/Source/WebKit/chromium/src/win/WebInputEventFactory.cpp +++ /dev/null @@ -1,490 +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_NUMLOCK: - 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 |