| /* |
| * Copyright (C) 2010 Apple 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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. |
| */ |
| |
| // NOTE: This implementation is very similar to the implementation of popups in WebCore::PopupMenuWin. |
| // We should try and factor out the common bits and share them. |
| |
| #include "config.h" |
| #include "WebPopupMenuProxyWin.h" |
| |
| #include "NativeWebMouseEvent.h" |
| #include "WebView.h" |
| #include <WebCore/WebCoreInstanceHandle.h> |
| #include <WebCore/ScrollbarTheme.h> |
| #include <WebCore/BitmapInfo.h> |
| #include <WebCore/PlatformMouseEvent.h> |
| #include <windowsx.h> |
| |
| using namespace WebCore; |
| using namespace std; |
| |
| namespace WebKit { |
| |
| static const LPCWSTR kWebKit2WebPopupMenuProxyWindowClassName = L"WebKit2WebPopupMenuProxyWindowClass"; |
| |
| static const int defaultAnimationDuration = 200; |
| static const int maxPopupHeight = 320; |
| static const int popupWindowBorderWidth = 1; |
| static const int separatorPadding = 4; |
| static const int separatorHeight = 1; |
| |
| // This is used from within our custom message pump when we want to send a |
| // message to the web view and not have our message stolen and sent to |
| // the popup window. |
| static const UINT WM_HOST_WINDOW_FIRST = WM_USER; |
| static const UINT WM_HOST_WINDOW_CHAR = WM_USER + WM_CHAR; |
| static const UINT WM_HOST_WINDOW_MOUSEMOVE = WM_USER + WM_MOUSEMOVE; |
| |
| static inline bool isASCIIPrintable(unsigned c) |
| { |
| return c >= 0x20 && c <= 0x7E; |
| } |
| |
| static void translatePoint(LPARAM& lParam, HWND from, HWND to) |
| { |
| POINT pt; |
| pt.x = static_cast<short>(GET_X_LPARAM(lParam)); |
| pt.y = static_cast<short>(GET_Y_LPARAM(lParam)); |
| ::MapWindowPoints(from, to, &pt, 1); |
| lParam = MAKELPARAM(pt.x, pt.y); |
| } |
| |
| LRESULT CALLBACK WebPopupMenuProxyWin::WebPopupMenuProxyWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) |
| { |
| LONG_PTR longPtr = ::GetWindowLongPtr(hWnd, 0); |
| |
| if (WebPopupMenuProxyWin* popupMenuProxy = reinterpret_cast<WebPopupMenuProxyWin*>(longPtr)) |
| return popupMenuProxy->wndProc(hWnd, message, wParam, lParam); |
| |
| if (message == WM_CREATE) { |
| LPCREATESTRUCT createStruct = reinterpret_cast<LPCREATESTRUCT>(lParam); |
| |
| // Associate the WebView with the window. |
| ::SetWindowLongPtr(hWnd, 0, (LONG_PTR)createStruct->lpCreateParams); |
| return 0; |
| } |
| |
| return ::DefWindowProc(hWnd, message, wParam, lParam); |
| } |
| |
| LRESULT WebPopupMenuProxyWin::wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) |
| { |
| LRESULT lResult = 0; |
| bool handled = true; |
| |
| switch (message) { |
| case WM_MOUSEACTIVATE: |
| lResult = onMouseActivate(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_SIZE: |
| lResult = onSize(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_KEYDOWN: |
| lResult = onKeyDown(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_CHAR: |
| lResult = onChar(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_MOUSEMOVE: |
| lResult = onMouseMove(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_LBUTTONDOWN: |
| lResult = onLButtonDown(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_LBUTTONUP: |
| lResult = onLButtonUp(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_MOUSEWHEEL: |
| lResult = onMouseWheel(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_PAINT: |
| lResult = onPaint(hWnd, message, wParam, lParam, handled); |
| break; |
| case WM_PRINTCLIENT: |
| lResult = onPrintClient(hWnd, message, wParam, lParam, handled); |
| break; |
| default: |
| handled = false; |
| break; |
| } |
| |
| if (!handled) |
| lResult = ::DefWindowProc(hWnd, message, wParam, lParam); |
| |
| return lResult; |
| } |
| |
| bool WebPopupMenuProxyWin::registerWindowClass() |
| { |
| static bool haveRegisteredWindowClass = false; |
| if (haveRegisteredWindowClass) |
| return true; |
| haveRegisteredWindowClass = true; |
| |
| WNDCLASSEX wcex; |
| wcex.cbSize = sizeof(WNDCLASSEX); |
| wcex.style = CS_DROPSHADOW; |
| wcex.lpfnWndProc = WebPopupMenuProxyWin::WebPopupMenuProxyWndProc; |
| wcex.cbClsExtra = 0; |
| wcex.cbWndExtra = sizeof(WebPopupMenuProxyWin*); |
| wcex.hInstance = instanceHandle(); |
| wcex.hIcon = 0; |
| wcex.hCursor = ::LoadCursor(0, IDC_ARROW); |
| wcex.hbrBackground = 0; |
| wcex.lpszMenuName = 0; |
| wcex.lpszClassName = kWebKit2WebPopupMenuProxyWindowClassName; |
| wcex.hIconSm = 0; |
| |
| return !!::RegisterClassEx(&wcex); |
| } |
| |
| WebPopupMenuProxyWin::WebPopupMenuProxyWin(WebView* webView, WebPopupMenuProxy::Client* client) |
| : WebPopupMenuProxy(client) |
| , m_webView(webView) |
| , m_newSelectedIndex(0) |
| , m_popup(0) |
| , m_DC(0) |
| , m_bmp(0) |
| , m_itemHeight(0) |
| , m_scrollOffset(0) |
| , m_wheelDelta(0) |
| , m_focusedIndex(0) |
| , m_wasClicked(false) |
| , m_scrollbarCapturingMouse(false) |
| , m_showPopup(false) |
| { |
| } |
| |
| WebPopupMenuProxyWin::~WebPopupMenuProxyWin() |
| { |
| if (m_bmp) |
| ::DeleteObject(m_bmp); |
| if (m_DC) |
| ::DeleteDC(m_DC); |
| if (m_popup) |
| ::DestroyWindow(m_popup); |
| if (m_scrollbar) |
| m_scrollbar->setParent(0); |
| } |
| |
| void WebPopupMenuProxyWin::showPopupMenu(const IntRect& rect, TextDirection, double, const Vector<WebPopupItem>& items, const PlatformPopupMenuData& data, int32_t selectedIndex) |
| { |
| m_items = items; |
| m_data = data; |
| m_newSelectedIndex = selectedIndex; |
| |
| calculatePositionAndSize(rect); |
| if (clientRect().isEmpty()) |
| return; |
| |
| HWND hostWindow = m_webView->window(); |
| |
| if (!m_scrollbar && visibleItems() < m_items.size()) { |
| m_scrollbar = Scrollbar::createNativeScrollbar(this, VerticalScrollbar, SmallScrollbar); |
| m_scrollbar->styleChanged(); |
| } |
| |
| if (!m_popup) { |
| registerWindowClass(); |
| |
| DWORD exStyle = WS_EX_LTRREADING; |
| |
| m_popup = ::CreateWindowEx(exStyle, kWebKit2WebPopupMenuProxyWindowClassName, TEXT("PopupMenu"), |
| WS_POPUP | WS_BORDER, |
| m_windowRect.x(), m_windowRect.y(), m_windowRect.width(), m_windowRect.height(), |
| hostWindow, 0, instanceHandle(), this); |
| |
| if (!m_popup) |
| return; |
| } |
| |
| BOOL shouldAnimate = FALSE; |
| ::SystemParametersInfo(SPI_GETCOMBOBOXANIMATION, 0, &shouldAnimate, 0); |
| |
| if (shouldAnimate) { |
| RECT viewRect = {0}; |
| ::GetWindowRect(hostWindow, &viewRect); |
| |
| if (!::IsRectEmpty(&viewRect)) { |
| // Popups should slide into view away from the <select> box |
| // NOTE: This may have to change for Vista |
| DWORD slideDirection = (m_windowRect.y() < viewRect.top + rect.location().y()) ? AW_VER_NEGATIVE : AW_VER_POSITIVE; |
| |
| ::AnimateWindow(m_popup, defaultAnimationDuration, AW_SLIDE | slideDirection); |
| } |
| } else |
| ::ShowWindow(m_popup, SW_SHOWNOACTIVATE); |
| |
| |
| int index = selectedIndex; |
| if (index >= 0) |
| setFocusedIndex(index); |
| |
| m_showPopup = true; |
| |
| // Protect the popup menu in case its owner is destroyed while we're running the message pump. |
| RefPtr<WebPopupMenuProxyWin> protect(this); |
| |
| ::SetCapture(hostWindow); |
| |
| MSG msg; |
| HWND activeWindow; |
| |
| while (::GetMessage(&msg, 0, 0, 0)) { |
| switch (msg.message) { |
| case WM_HOST_WINDOW_MOUSEMOVE: |
| case WM_HOST_WINDOW_CHAR: |
| if (msg.hwnd == m_popup) { |
| // This message should be sent to the host window. |
| msg.hwnd = hostWindow; |
| msg.message -= WM_HOST_WINDOW_FIRST; |
| } |
| break; |
| |
| // Steal mouse messages. |
| case WM_NCMOUSEMOVE: |
| case WM_NCLBUTTONDOWN: |
| case WM_NCLBUTTONUP: |
| case WM_NCLBUTTONDBLCLK: |
| case WM_NCRBUTTONDOWN: |
| case WM_NCRBUTTONUP: |
| case WM_NCRBUTTONDBLCLK: |
| case WM_NCMBUTTONDOWN: |
| case WM_NCMBUTTONUP: |
| case WM_NCMBUTTONDBLCLK: |
| case WM_MOUSEWHEEL: |
| msg.hwnd = m_popup; |
| break; |
| |
| // These mouse messages use client coordinates so we need to convert them. |
| case WM_MOUSEMOVE: |
| case WM_LBUTTONDOWN: |
| case WM_LBUTTONUP: |
| case WM_LBUTTONDBLCLK: |
| case WM_RBUTTONDOWN: |
| case WM_RBUTTONUP: |
| case WM_RBUTTONDBLCLK: |
| case WM_MBUTTONDOWN: |
| case WM_MBUTTONUP: |
| case WM_MBUTTONDBLCLK: { |
| // Translate the coordinate. |
| translatePoint(msg.lParam, msg.hwnd, m_popup); |
| msg.hwnd = m_popup; |
| break; |
| } |
| |
| // Steal all keyboard messages. |
| case WM_KEYDOWN: |
| case WM_KEYUP: |
| case WM_CHAR: |
| case WM_DEADCHAR: |
| case WM_SYSKEYUP: |
| case WM_SYSCHAR: |
| case WM_SYSDEADCHAR: |
| msg.hwnd = m_popup; |
| break; |
| } |
| |
| ::TranslateMessage(&msg); |
| ::DispatchMessage(&msg); |
| |
| if (!m_showPopup) |
| break; |
| activeWindow = ::GetActiveWindow(); |
| if (activeWindow != hostWindow && !::IsChild(activeWindow, hostWindow)) |
| break; |
| if (::GetCapture() != hostWindow) |
| break; |
| } |
| |
| if (::GetCapture() == hostWindow) |
| ::ReleaseCapture(); |
| |
| m_showPopup = false; |
| ::ShowWindow(m_popup, SW_HIDE); |
| |
| if (!m_client) |
| return; |
| |
| m_client->valueChangedForPopupMenu(this, m_newSelectedIndex); |
| |
| // <https://bugs.webkit.org/show_bug.cgi?id=57904> In order to properly call the onClick() |
| // handler on a <select> element, we need to fake a mouse up event in the main window. |
| // The main window already received the mouse down, which showed this popup, but upon |
| // selection of an item the mouse up gets eaten by the popup menu. So we take the mouse down |
| // event, change the message type to a mouse up event, and post that in the message queue. |
| // Thus, we are virtually clicking at the |
| // same location where the mouse down event occurred. This allows the hit test to select |
| // the correct element, and thereby call the onClick() JS handler. |
| if (!m_client->currentlyProcessedMouseDownEvent()) |
| return; |
| |
| const MSG* initiatingWinEvent = m_client->currentlyProcessedMouseDownEvent()->nativeEvent(); |
| MSG fakeEvent = *initiatingWinEvent; |
| fakeEvent.message = WM_LBUTTONUP; |
| ::PostMessage(fakeEvent.hwnd, fakeEvent.message, fakeEvent.wParam, fakeEvent.lParam); |
| } |
| |
| void WebPopupMenuProxyWin::hidePopupMenu() |
| { |
| if (!m_showPopup) |
| return; |
| m_showPopup = false; |
| |
| ::ShowWindow(m_popup, SW_HIDE); |
| |
| // Post a WM_NULL message to wake up the message pump if necessary. |
| ::PostMessage(m_popup, WM_NULL, 0, 0); |
| } |
| |
| void WebPopupMenuProxyWin::calculatePositionAndSize(const IntRect& rect) |
| { |
| // Convert the rect (which is in view cooridates) into screen coordinates. |
| IntRect rectInScreenCoords = rect; |
| POINT location(rectInScreenCoords .location()); |
| if (!::ClientToScreen(m_webView->window(), &location)) |
| return; |
| rectInScreenCoords.setLocation(location); |
| |
| int itemCount = m_items.size(); |
| m_itemHeight = m_data.m_itemHeight; |
| |
| int naturalHeight = m_itemHeight * itemCount; |
| int popupHeight = min(maxPopupHeight, naturalHeight); |
| |
| // The popup should show an integral number of items (i.e. no partial items should be visible) |
| popupHeight -= popupHeight % m_itemHeight; |
| |
| // Next determine its width |
| int popupWidth = m_data.m_popupWidth; |
| |
| if (naturalHeight > maxPopupHeight) { |
| // We need room for a scrollbar |
| popupWidth += ScrollbarTheme::nativeTheme()->scrollbarThickness(SmallScrollbar); |
| } |
| |
| popupHeight += 2 * popupWindowBorderWidth; |
| |
| // The popup should be at least as wide as the control on the page |
| popupWidth = max(rectInScreenCoords.width() - m_data.m_clientInsetLeft - m_data.m_clientInsetRight, popupWidth); |
| |
| // Always left-align items in the popup. This matches popup menus on the mac. |
| int popupX = rectInScreenCoords.x() + m_data.m_clientInsetLeft; |
| |
| IntRect popupRect(popupX, rectInScreenCoords.maxY(), popupWidth, popupHeight); |
| |
| // The popup needs to stay within the bounds of the screen and not overlap any toolbars |
| HMONITOR monitor = ::MonitorFromWindow(m_webView->window(), MONITOR_DEFAULTTOPRIMARY); |
| MONITORINFOEX monitorInfo; |
| monitorInfo.cbSize = sizeof(MONITORINFOEX); |
| ::GetMonitorInfo(monitor, &monitorInfo); |
| FloatRect screen = monitorInfo.rcWork; |
| |
| // Check that we don't go off the screen vertically |
| if (popupRect.maxY() > screen.height()) { |
| // The popup will go off the screen, so try placing it above the client |
| if (rectInScreenCoords.y() - popupRect.height() < 0) { |
| // The popup won't fit above, either, so place it whereever's bigger and resize it to fit |
| if ((rectInScreenCoords.y() + rectInScreenCoords.height() / 2) < (screen.height() / 2)) { |
| // Below is bigger |
| popupRect.setHeight(screen.height() - popupRect.y()); |
| } else { |
| // Above is bigger |
| popupRect.setY(0); |
| popupRect.setHeight(rectInScreenCoords.y()); |
| } |
| } else { |
| // The popup fits above, so reposition it |
| popupRect.setY(rectInScreenCoords.y() - popupRect.height()); |
| } |
| } |
| |
| // Check that we don't go off the screen horizontally |
| if (popupRect.x() < screen.x()) { |
| popupRect.setWidth(popupRect.width() - (screen.x() - popupRect.x())); |
| popupRect.setX(screen.x()); |
| } |
| |
| m_windowRect = popupRect; |
| } |
| |
| IntRect WebPopupMenuProxyWin::clientRect() const |
| { |
| IntRect clientRect = m_windowRect; |
| clientRect.inflate(-popupWindowBorderWidth); |
| clientRect.setLocation(IntPoint(0, 0)); |
| return clientRect; |
| } |
| |
| void WebPopupMenuProxyWin::invalidateItem(int index) |
| { |
| if (!m_popup) |
| return; |
| |
| IntRect damageRect(clientRect()); |
| damageRect.setY(m_itemHeight * (index - m_scrollOffset)); |
| damageRect.setHeight(m_itemHeight); |
| if (m_scrollbar) |
| damageRect.setWidth(damageRect.width() - m_scrollbar->frameRect().width()); |
| |
| RECT r = damageRect; |
| ::InvalidateRect(m_popup, &r, TRUE); |
| } |
| |
| int WebPopupMenuProxyWin::scrollSize(ScrollbarOrientation orientation) const |
| { |
| return ((orientation == VerticalScrollbar) && m_scrollbar) ? (m_scrollbar->totalSize() - m_scrollbar->visibleSize()) : 0; |
| } |
| |
| int WebPopupMenuProxyWin::scrollPosition(Scrollbar*) const |
| { |
| return m_scrollOffset; |
| } |
| |
| void WebPopupMenuProxyWin::setScrollOffset(const IntPoint& offset) |
| { |
| scrollTo(offset.y()); |
| } |
| |
| void WebPopupMenuProxyWin::scrollTo(int offset) |
| { |
| ASSERT(m_scrollbar); |
| |
| if (!m_popup) |
| return; |
| |
| if (m_scrollOffset == offset) |
| return; |
| |
| int scrolledLines = m_scrollOffset - offset; |
| m_scrollOffset = offset; |
| |
| UINT flags = SW_INVALIDATE; |
| |
| #ifdef CAN_SET_SMOOTH_SCROLLING_DURATION |
| BOOL shouldSmoothScroll = FALSE; |
| ::SystemParametersInfo(SPI_GETLISTBOXSMOOTHSCROLLING, 0, &shouldSmoothScroll, 0); |
| if (shouldSmoothScroll) |
| flags |= MAKEWORD(SW_SMOOTHSCROLL, smoothScrollAnimationDuration); |
| #endif |
| |
| IntRect listRect = clientRect(); |
| if (m_scrollbar) |
| listRect.setWidth(listRect.width() - m_scrollbar->frameRect().width()); |
| RECT r = listRect; |
| ::ScrollWindowEx(m_popup, 0, scrolledLines * m_itemHeight, &r, 0, 0, 0, flags); |
| if (m_scrollbar) { |
| r = m_scrollbar->frameRect(); |
| ::InvalidateRect(m_popup, &r, TRUE); |
| } |
| ::UpdateWindow(m_popup); |
| } |
| |
| void WebPopupMenuProxyWin::invalidateScrollbarRect(Scrollbar* scrollbar, const IntRect& rect) |
| { |
| IntRect scrollRect = rect; |
| scrollRect.move(scrollbar->x(), scrollbar->y()); |
| RECT r = scrollRect; |
| ::InvalidateRect(m_popup, &r, false); |
| } |
| |
| // Message pump messages. |
| |
| LRESULT WebPopupMenuProxyWin::onMouseActivate(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled) |
| { |
| handled = true; |
| return MA_NOACTIVATE; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onSize(HWND hWnd, UINT message, WPARAM, LPARAM lParam, bool& handled) |
| { |
| handled = true; |
| if (!scrollbar()) |
| return 0; |
| |
| IntSize size(LOWORD(lParam), HIWORD(lParam)); |
| scrollbar()->setFrameRect(IntRect(size.width() - scrollbar()->width(), 0, scrollbar()->width(), size.height())); |
| |
| int visibleItems = this->visibleItems(); |
| scrollbar()->setEnabled(visibleItems < m_items.size()); |
| scrollbar()->setSteps(1, max(1, visibleItems - 1)); |
| scrollbar()->setProportion(visibleItems, m_items.size()); |
| return 0; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onKeyDown(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, bool& handled) |
| { |
| handled = true; |
| |
| LRESULT lResult = 0; |
| switch (LOWORD(wParam)) { |
| case VK_DOWN: |
| case VK_RIGHT: |
| down(); |
| break; |
| case VK_UP: |
| case VK_LEFT: |
| up(); |
| break; |
| case VK_HOME: |
| focusFirst(); |
| break; |
| case VK_END: |
| focusLast(); |
| break; |
| case VK_PRIOR: |
| if (focusedIndex() != scrollOffset()) { |
| // Set the selection to the first visible item |
| int firstVisibleItem = scrollOffset(); |
| up(focusedIndex() - firstVisibleItem); |
| } else { |
| // The first visible item is selected, so move the selection back one page |
| up(visibleItems()); |
| } |
| break; |
| case VK_NEXT: { |
| int lastVisibleItem = scrollOffset() + visibleItems() - 1; |
| if (focusedIndex() != lastVisibleItem) { |
| // Set the selection to the last visible item |
| down(lastVisibleItem - focusedIndex()); |
| } else { |
| // The last visible item is selected, so move the selection forward one page |
| down(visibleItems()); |
| } |
| break; |
| } |
| case VK_TAB: |
| ::SendMessage(m_webView->window(), message, wParam, lParam); |
| hide(); |
| break; |
| case VK_ESCAPE: |
| hide(); |
| break; |
| default: |
| if (isASCIIPrintable(wParam)) { |
| // Send the keydown to the WebView so it can be used for type-to-select. |
| // Since we know that the virtual key is ASCII printable, it's OK to convert this to |
| // a WM_CHAR message. (We don't want to call TranslateMessage because that will post a |
| // WM_CHAR message that will be stolen and redirected to the popup HWND. |
| ::PostMessage(m_popup, WM_HOST_WINDOW_CHAR, wParam, lParam); |
| } else |
| lResult = 1; |
| break; |
| } |
| |
| return lResult; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onChar(HWND hWnd, UINT message, WPARAM wParam, LPARAM, bool& handled) |
| { |
| handled = true; |
| |
| LRESULT lResult = 0; |
| int index; |
| switch (wParam) { |
| case 0x0D: // Enter/Return |
| hide(); |
| index = focusedIndex(); |
| ASSERT(index >= 0); |
| // FIXME: Do we need to send back the index right away? |
| m_newSelectedIndex = index; |
| break; |
| case 0x1B: // Escape |
| hide(); |
| break; |
| case 0x09: // TAB |
| case 0x08: // Backspace |
| case 0x0A: // Linefeed |
| default: // Character |
| lResult = 1; |
| break; |
| } |
| |
| return lResult; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onMouseMove(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, bool& handled) |
| { |
| handled = true; |
| |
| IntPoint mousePoint(MAKEPOINTS(lParam)); |
| if (scrollbar()) { |
| IntRect scrollBarRect = scrollbar()->frameRect(); |
| if (scrollbarCapturingMouse() || scrollBarRect.contains(mousePoint)) { |
| // Put the point into coordinates relative to the scroll bar |
| mousePoint.move(-scrollBarRect.x(), -scrollBarRect.y()); |
| PlatformMouseEvent event(hWnd, message, wParam, MAKELPARAM(mousePoint.x(), mousePoint.y())); |
| scrollbar()->mouseMoved(event); |
| return 0; |
| } |
| } |
| |
| BOOL shouldHotTrack = FALSE; |
| ::SystemParametersInfo(SPI_GETHOTTRACKING, 0, &shouldHotTrack, 0); |
| |
| RECT bounds; |
| ::GetClientRect(m_popup, &bounds); |
| if (!::PtInRect(&bounds, mousePoint) && !(wParam & MK_LBUTTON)) { |
| // When the mouse is not inside the popup menu and the left button isn't down, just |
| // repost the message to the web view. |
| |
| // Translate the coordinate. |
| translatePoint(lParam, m_popup, m_webView->window()); |
| |
| ::PostMessage(m_popup, WM_HOST_WINDOW_MOUSEMOVE, wParam, lParam); |
| return 0; |
| } |
| |
| if ((shouldHotTrack || wParam & MK_LBUTTON) && ::PtInRect(&bounds, mousePoint)) |
| setFocusedIndex(listIndexAtPoint(mousePoint), true); |
| |
| return 0; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onLButtonDown(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, bool& handled) |
| { |
| handled = true; |
| |
| IntPoint mousePoint(MAKEPOINTS(lParam)); |
| if (scrollbar()) { |
| IntRect scrollBarRect = scrollbar()->frameRect(); |
| if (scrollBarRect.contains(mousePoint)) { |
| // Put the point into coordinates relative to the scroll bar |
| mousePoint.move(-scrollBarRect.x(), -scrollBarRect.y()); |
| PlatformMouseEvent event(hWnd, message, wParam, MAKELPARAM(mousePoint.x(), mousePoint.y())); |
| scrollbar()->mouseDown(event); |
| setScrollbarCapturingMouse(true); |
| return 0; |
| } |
| } |
| |
| // If the mouse is inside the window, update the focused index. Otherwise, |
| // hide the popup. |
| RECT bounds; |
| ::GetClientRect(m_popup, &bounds); |
| if (::PtInRect(&bounds, mousePoint)) |
| setFocusedIndex(listIndexAtPoint(mousePoint), true); |
| else |
| hide(); |
| |
| return 0; |
| } |
| |
| |
| LRESULT WebPopupMenuProxyWin::onLButtonUp(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, bool& handled) |
| { |
| handled = true; |
| |
| IntPoint mousePoint(MAKEPOINTS(lParam)); |
| if (scrollbar()) { |
| IntRect scrollBarRect = scrollbar()->frameRect(); |
| if (scrollbarCapturingMouse() || scrollBarRect.contains(mousePoint)) { |
| setScrollbarCapturingMouse(false); |
| // Put the point into coordinates relative to the scroll bar |
| mousePoint.move(-scrollBarRect.x(), -scrollBarRect.y()); |
| PlatformMouseEvent event(hWnd, message, wParam, MAKELPARAM(mousePoint.x(), mousePoint.y())); |
| scrollbar()->mouseUp(); |
| // FIXME: This is a hack to work around Scrollbar not invalidating correctly when it doesn't have a parent widget |
| RECT r = scrollBarRect; |
| ::InvalidateRect(m_popup, &r, TRUE); |
| return 0; |
| } |
| } |
| // Only hide the popup if the mouse is inside the popup window. |
| RECT bounds; |
| ::GetClientRect(m_popup, &bounds); |
| if (::PtInRect(&bounds, mousePoint)) { |
| hide(); |
| int index = focusedIndex(); |
| if (index >= 0) { |
| // FIXME: Do we need to send back the index right away? |
| m_newSelectedIndex = index; |
| } |
| } |
| |
| return 0; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onMouseWheel(HWND hWnd, UINT message, WPARAM wParam, LPARAM, bool& handled) |
| { |
| handled = true; |
| |
| if (!scrollbar()) |
| return 0; |
| |
| int i = 0; |
| for (incrementWheelDelta(GET_WHEEL_DELTA_WPARAM(wParam)); abs(wheelDelta()) >= WHEEL_DELTA; reduceWheelDelta(WHEEL_DELTA)) { |
| if (wheelDelta() > 0) |
| ++i; |
| else |
| --i; |
| } |
| |
| ScrollableArea::scroll(i > 0 ? ScrollUp : ScrollDown, ScrollByLine, abs(i)); |
| return 0; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onPaint(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled) |
| { |
| handled = true; |
| |
| PAINTSTRUCT paintStruct; |
| ::BeginPaint(m_popup, &paintStruct); |
| paint(paintStruct.rcPaint, paintStruct.hdc); |
| ::EndPaint(m_popup, &paintStruct); |
| |
| return 0; |
| } |
| |
| LRESULT WebPopupMenuProxyWin::onPrintClient(HWND hWnd, UINT, WPARAM wParam, LPARAM, bool& handled) |
| { |
| handled = true; |
| |
| HDC hdc = reinterpret_cast<HDC>(wParam); |
| paint(clientRect(), hdc); |
| |
| return 0; |
| } |
| |
| bool WebPopupMenuProxyWin::down(unsigned lines) |
| { |
| int size = m_items.size(); |
| |
| int lastSelectableIndex, selectedListIndex; |
| lastSelectableIndex = selectedListIndex = focusedIndex(); |
| for (int i = selectedListIndex + 1; i >= 0 && i < size; ++i) { |
| if (m_items[i].m_isEnabled) { |
| lastSelectableIndex = i; |
| if (i >= selectedListIndex + (int)lines) |
| break; |
| } |
| } |
| |
| return setFocusedIndex(lastSelectableIndex); |
| } |
| |
| bool WebPopupMenuProxyWin::up(unsigned lines) |
| { |
| int size = m_items.size(); |
| |
| int lastSelectableIndex, selectedListIndex; |
| lastSelectableIndex = selectedListIndex = focusedIndex(); |
| for (int i = selectedListIndex - 1; i >= 0 && i < size; --i) { |
| if (m_items[i].m_isEnabled) { |
| lastSelectableIndex = i; |
| if (i <= selectedListIndex - (int)lines) |
| break; |
| } |
| } |
| |
| return setFocusedIndex(lastSelectableIndex); |
| } |
| |
| void WebPopupMenuProxyWin::paint(const IntRect& damageRect, HDC hdc) |
| { |
| if (!m_popup) |
| return; |
| |
| if (!m_DC) { |
| m_DC = ::CreateCompatibleDC(::GetDC(m_popup)); |
| if (!m_DC) |
| return; |
| } |
| |
| if (m_bmp) { |
| bool keepBitmap = false; |
| BITMAP bitmap; |
| if (::GetObject(m_bmp, sizeof(bitmap), &bitmap)) |
| keepBitmap = bitmap.bmWidth == clientRect().width() && bitmap.bmHeight == clientRect().height(); |
| if (!keepBitmap) { |
| ::DeleteObject(m_bmp); |
| m_bmp = 0; |
| } |
| } |
| |
| if (!m_bmp) { |
| BitmapInfo bitmapInfo = BitmapInfo::createBottomUp(clientRect().size()); |
| void* pixels = 0; |
| m_bmp = ::CreateDIBSection(m_DC, &bitmapInfo, DIB_RGB_COLORS, &pixels, 0, 0); |
| if (!m_bmp) |
| return; |
| ::SelectObject(m_DC, m_bmp); |
| } |
| |
| GraphicsContext context(m_DC); |
| |
| IntRect translatedDamageRect = damageRect; |
| translatedDamageRect.move(IntSize(0, m_scrollOffset * m_itemHeight)); |
| m_data.m_notSelectedBackingStore->paint(context, damageRect.location(), translatedDamageRect); |
| |
| IntRect selectedIndexRectInBackingStore(0, focusedIndex() * m_itemHeight, m_data.m_selectedBackingStore->size().width(), m_itemHeight); |
| IntPoint selectedIndexDstPoint = selectedIndexRectInBackingStore.location(); |
| selectedIndexDstPoint.move(0, -m_scrollOffset * m_itemHeight); |
| |
| m_data.m_selectedBackingStore->paint(context, selectedIndexDstPoint, selectedIndexRectInBackingStore); |
| |
| if (m_scrollbar) |
| m_scrollbar->paint(&context, damageRect); |
| |
| HDC localDC = hdc ? hdc : ::GetDC(m_popup); |
| |
| ::BitBlt(localDC, damageRect.x(), damageRect.y(), damageRect.width(), damageRect.height(), m_DC, damageRect.x(), damageRect.y(), SRCCOPY); |
| |
| if (!hdc) |
| ::ReleaseDC(m_popup, localDC); |
| } |
| |
| bool WebPopupMenuProxyWin::setFocusedIndex(int i, bool hotTracking) |
| { |
| if (i < 0 || i >= m_items.size() || i == focusedIndex()) |
| return false; |
| |
| if (!m_items[i].m_isEnabled) |
| return false; |
| |
| invalidateItem(focusedIndex()); |
| invalidateItem(i); |
| |
| m_focusedIndex = i; |
| |
| if (!hotTracking) { |
| if (m_client) |
| m_client->setTextFromItemForPopupMenu(this, i); |
| } |
| |
| if (!scrollToRevealSelection()) |
| ::UpdateWindow(m_popup); |
| |
| return true; |
| } |
| |
| int WebPopupMenuProxyWin::visibleItems() const |
| { |
| return clientRect().height() / m_itemHeight; |
| } |
| |
| int WebPopupMenuProxyWin::listIndexAtPoint(const IntPoint& point) const |
| { |
| return m_scrollOffset + point.y() / m_itemHeight; |
| } |
| |
| int WebPopupMenuProxyWin::focusedIndex() const |
| { |
| return m_focusedIndex; |
| } |
| |
| void WebPopupMenuProxyWin::focusFirst() |
| { |
| int size = m_items.size(); |
| |
| for (int i = 0; i < size; ++i) { |
| if (m_items[i].m_isEnabled) { |
| setFocusedIndex(i); |
| break; |
| } |
| } |
| } |
| |
| void WebPopupMenuProxyWin::focusLast() |
| { |
| int size = m_items.size(); |
| |
| for (int i = size - 1; i > 0; --i) { |
| if (m_items[i].m_isEnabled) { |
| setFocusedIndex(i); |
| break; |
| } |
| } |
| } |
| |
| |
| void WebPopupMenuProxyWin::incrementWheelDelta(int delta) |
| { |
| m_wheelDelta += delta; |
| } |
| |
| void WebPopupMenuProxyWin::reduceWheelDelta(int delta) |
| { |
| ASSERT(delta >= 0); |
| ASSERT(delta <= abs(m_wheelDelta)); |
| |
| if (m_wheelDelta > 0) |
| m_wheelDelta -= delta; |
| else if (m_wheelDelta < 0) |
| m_wheelDelta += delta; |
| else |
| return; |
| } |
| |
| bool WebPopupMenuProxyWin::scrollToRevealSelection() |
| { |
| if (!m_scrollbar) |
| return false; |
| |
| int index = focusedIndex(); |
| |
| if (index < m_scrollOffset) { |
| ScrollableArea::scrollToYOffsetWithoutAnimation(index); |
| return true; |
| } |
| |
| if (index >= m_scrollOffset + visibleItems()) { |
| ScrollableArea::scrollToYOffsetWithoutAnimation(index - visibleItems() + 1); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| } // namespace WebKit |
