732 lines
15 KiB
C
732 lines
15 KiB
C
/*
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* Copyright 2011 Vincent Sanders <vince@simtec.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* win32 implementation of drawable window showing browser context
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "utils/config.h"
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#include <windows.h>
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#include <windowsx.h>
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#include "utils/errors.h"
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#include "utils/log.h"
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#include "netsurf/browser_window.h"
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#include "netsurf/plotters.h"
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#include "netsurf/keypress.h"
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#include "windows/windbg.h"
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#include "windows/plot.h"
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#include "windows/window.h"
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#include "windows/local_history.h"
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#include "windows/drawable.h"
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static const wchar_t *windowclassname_drawable = L"nswsdrawablewindow";
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/**
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* Handle wheel scroll messages.
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*/
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static LRESULT
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nsws_drawable_wheel(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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int i, z = GET_WHEEL_DELTA_WPARAM(wparam) / WHEEL_DELTA;
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int key = LOWORD(wparam);
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DWORD command;
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unsigned int newmessage = WM_VSCROLL;
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if (key == MK_SHIFT) {
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command = (z > 0) ? SB_LINERIGHT : SB_LINELEFT;
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newmessage = WM_HSCROLL;
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} else {
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/* add MK_CONTROL -> zoom */
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command = (z > 0) ? SB_LINEUP : SB_LINEDOWN;
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}
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z = (z < 0) ? -1 * z : z;
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for (i = 0; i < z; i++) {
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SendMessage(hwnd, newmessage, MAKELONG(command, 0), 0);
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}
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return 0;
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}
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/**
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* Handle vertical scroll messages.
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*/
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static LRESULT
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nsws_drawable_vscroll(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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int width, height;
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SCROLLINFO si;
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int mem;
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NSLOG(netsurf, INFO, "VSCROLL %d", gw->requestscrolly);
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if (gw->requestscrolly != 0)
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return 0;
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si.cbSize = sizeof(si);
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si.fMask = SIF_ALL;
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GetScrollInfo(hwnd, SB_VERT, &si);
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mem = si.nPos;
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switch (LOWORD(wparam)) {
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case SB_TOP:
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si.nPos = si.nMin;
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break;
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case SB_BOTTOM:
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si.nPos = si.nMax;
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break;
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case SB_LINEUP:
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si.nPos -= 30;
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break;
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case SB_LINEDOWN:
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si.nPos += 30;
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break;
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case SB_PAGEUP:
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si.nPos -= gw->height;
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break;
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case SB_PAGEDOWN:
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si.nPos += gw->height;
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break;
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case SB_THUMBTRACK:
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si.nPos = si.nTrackPos;
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break;
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default:
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break;
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}
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si.fMask = SIF_POS;
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if ((gw->bw != NULL) &&
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(browser_window_get_extents(gw->bw, true,
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&width, &height) == NSERROR_OK)) {
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si.nPos = min(si.nPos, height - gw->height);
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}
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si.nPos = max(si.nPos, 0);
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SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
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GetScrollInfo(hwnd, SB_VERT, &si);
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if (si.nPos != mem) {
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struct rect rect;
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rect.x0 = rect.x1 = gw->scrollx;
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rect.y0 = rect.y1 = gw->scrolly + gw->requestscrolly + si.nPos - mem;
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win32_window_set_scroll(gw, &rect);
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}
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return 0;
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}
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/**
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* Handle horizontal scroll messages.
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*/
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static LRESULT
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nsws_drawable_hscroll(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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int width, height;
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SCROLLINFO si;
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int mem;
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NSLOG(netsurf, INFO, "HSCROLL %d", gw->requestscrollx);
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if (gw->requestscrollx != 0)
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return 0;
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si.cbSize = sizeof(si);
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si.fMask = SIF_ALL;
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GetScrollInfo(hwnd, SB_HORZ, &si);
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mem = si.nPos;
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switch (LOWORD(wparam)) {
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case SB_LINELEFT:
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si.nPos -= 30;
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break;
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case SB_LINERIGHT:
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si.nPos += 30;
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break;
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case SB_PAGELEFT:
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si.nPos -= gw->width;
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break;
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case SB_PAGERIGHT:
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si.nPos += gw->width;
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break;
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case SB_THUMBTRACK:
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si.nPos = si.nTrackPos;
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break;
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default:
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break;
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}
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si.fMask = SIF_POS;
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if ((gw->bw != NULL) &&
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(browser_window_get_extents(gw->bw, true,
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&width, &height) == NSERROR_OK)) {
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si.nPos = min(si.nPos, width - gw->width);
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}
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si.nPos = max(si.nPos, 0);
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SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
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GetScrollInfo(hwnd, SB_HORZ, &si);
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if (si.nPos != mem) {
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struct rect rect;
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rect.x0 = rect.x1 = gw->scrollx + gw->requestscrollx + si.nPos - mem;
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rect.y0 = rect.y1 = gw->scrolly;
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win32_window_set_scroll(gw, &rect);
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}
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return 0;
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}
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/**
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* Handle resize events.
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*/
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static LRESULT
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nsws_drawable_resize(struct gui_window *gw)
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{
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browser_window_schedule_reformat(gw->bw);
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return 0;
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}
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/**
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* Handle unicode character messages.
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*/
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static LRESULT
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nsws_drawable_unichar(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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uint32_t nskey;
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if (wparam == UNICODE_NOCHAR) {
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return 1;
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}
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nskey = wparam;
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browser_window_key_press(gw->bw, nskey);
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return 0;
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}
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/**
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* Handle character messages.
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*
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* WM_CHAR is generated when WM_KEYDOWN message are passed to
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* TranslateMessage; wParam is UTF-16. If the codepoint is 4
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* bytes, there are 2 WM_CHAR message, one with the high
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* surrogate and one with the low surrogate.
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*/
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static LRESULT
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nsws_drawable_char(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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uint32_t nskey;
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nskey = wparam;
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const uint32_t utf16_hi_surrogate_start = 0xD800;
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const uint32_t utf16_lo_surrogate_start = 0xDC00;
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const uint32_t utf16_surrogate_end = 0xDFFF;
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static uint32_t highSurrogate = 0;
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if ((nskey >= utf16_hi_surrogate_start) &&
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(nskey < utf16_lo_surrogate_start) ) {
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highSurrogate = nskey;
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} else {
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if ((nskey >= utf16_lo_surrogate_start) &&
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(nskey <= utf16_surrogate_end)) {
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uint32_t lowSurrogate = nskey;
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nskey = (highSurrogate - utf16_hi_surrogate_start) << 10;
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nskey |= ( lowSurrogate - utf16_lo_surrogate_start );
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nskey += 0x10000;
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}
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highSurrogate = 0;
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browser_window_key_press(gw->bw, nskey);
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}
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return 0;
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}
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/**
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* Handle keydown messages.
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*/
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static LRESULT
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nsws_drawable_keydown(struct gui_window *gw, HWND hwnd, WPARAM wparam)
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{
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uint32_t i;
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bool shift = ((GetKeyState(VK_SHIFT) & 0x8000) == 0x8000);
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switch(wparam) {
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case VK_LEFT:
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i = NS_KEY_LEFT;
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if (shift)
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SendMessage(hwnd, WM_HSCROLL,
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MAKELONG(SB_LINELEFT, 0), 0);
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break;
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case VK_RIGHT:
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i = NS_KEY_RIGHT;
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if (shift)
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SendMessage(hwnd, WM_HSCROLL,
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MAKELONG(SB_LINERIGHT, 0), 0);
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break;
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case VK_UP:
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i = NS_KEY_UP;
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if (shift)
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SendMessage(hwnd, WM_VSCROLL,
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MAKELONG(SB_LINEUP, 0), 0);
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break;
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case VK_DOWN:
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i = NS_KEY_DOWN;
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if (shift)
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SendMessage(hwnd, WM_VSCROLL,
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MAKELONG(SB_LINEDOWN, 0), 0);
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break;
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case VK_HOME:
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i = NS_KEY_LINE_START;
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if (shift)
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SendMessage(hwnd, WM_HSCROLL,
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MAKELONG(SB_PAGELEFT, 0), 0);
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break;
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case VK_END:
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i = NS_KEY_LINE_END;
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if (shift)
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SendMessage(hwnd, WM_HSCROLL,
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MAKELONG(SB_PAGERIGHT, 0), 0);
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break;
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case VK_DELETE:
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i = NS_KEY_DELETE_RIGHT;
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break;
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case VK_NEXT:
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SendMessage(hwnd, WM_VSCROLL, MAKELONG(SB_PAGEDOWN, 0), 0);
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return 1;
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case VK_PRIOR:
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SendMessage(hwnd, WM_VSCROLL, MAKELONG(SB_PAGEUP, 0), 0);
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return 1;
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default:
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return 1;
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}
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browser_window_key_press(gw->bw, i);
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return 0;
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}
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/**
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* Handle paint messages.
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*/
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static LRESULT
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nsws_drawable_paint(struct gui_window *gw, HWND hwnd)
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{
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struct rect clip;
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PAINTSTRUCT ps;
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struct redraw_context ctx = {
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.interactive = true,
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.background_images = true,
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.plot = &win_plotters
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};
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BeginPaint(hwnd, &ps);
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if (gw != NULL) {
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plot_hdc = ps.hdc;
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clip.x0 = ps.rcPaint.left;
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clip.y0 = ps.rcPaint.top;
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clip.x1 = ps.rcPaint.right;
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clip.y1 = ps.rcPaint.bottom;
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/**
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* \todo work out why the heck scroll needs scaling
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*/
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browser_window_redraw(gw->bw,
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-gw->scrollx,
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-gw->scrolly,
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&clip,
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&ctx);
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}
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EndPaint(hwnd, &ps);
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return 0;
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}
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/**
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* Handle mouse button up messages.
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*/
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static LRESULT
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nsws_drawable_mouseup(struct gui_window *gw,
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int x,
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int y,
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browser_mouse_state press,
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browser_mouse_state click)
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{
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bool shift = ((GetKeyState(VK_SHIFT) & 0x8000) == 0x8000);
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bool ctrl = ((GetKeyState(VK_CONTROL) & 0x8000) == 0x8000);
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bool alt = ((GetKeyState(VK_MENU) & 0x8000) == 0x8000);
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if ((gw == NULL) ||
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(gw->mouse == NULL) ||
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(gw->bw == NULL))
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return 0;
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NSLOG(netsurf, INFO, "state 0x%x, press 0x%x", gw->mouse->state,
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press);
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if ((gw->mouse->state & press) != 0) {
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gw->mouse->state &= ~press;
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gw->mouse->state |= click;
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}
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if (((gw->mouse->state & BROWSER_MOUSE_MOD_1) != 0) && !shift)
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gw->mouse->state &= ~BROWSER_MOUSE_MOD_1;
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if (((gw->mouse->state & BROWSER_MOUSE_MOD_2) != 0) && !ctrl)
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gw->mouse->state &= ~BROWSER_MOUSE_MOD_2;
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if (((gw->mouse->state & BROWSER_MOUSE_MOD_3) != 0) && !alt)
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gw->mouse->state &= ~BROWSER_MOUSE_MOD_3;
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if ((gw->mouse->state & click) != 0) {
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NSLOG(netsurf, INFO,
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"mouse click bw %p, state 0x%x, x %d, y %d",
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gw->bw,
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gw->mouse->state,
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x + gw->scrollx,
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y + gw->scrolly);
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browser_window_mouse_click(gw->bw,
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gw->mouse->state,
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x + gw->scrollx,
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y + gw->scrolly);
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} else {
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browser_window_mouse_track(gw->bw,
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0,
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x + gw->scrollx,
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y + gw->scrolly);
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}
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gw->mouse->state = 0;
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return 0;
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}
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/**
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* Handle mouse button down messages.
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*/
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static LRESULT
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nsws_drawable_mousedown(struct gui_window *gw,
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int x, int y,
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browser_mouse_state button)
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{
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if ((gw == NULL) ||
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(gw->mouse == NULL) ||
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(gw->bw == NULL)) {
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nsw32_local_history_hide();
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return 0;
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}
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gw->mouse->state = button;
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if ((GetKeyState(VK_SHIFT) & 0x8000) == 0x8000)
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gw->mouse->state |= BROWSER_MOUSE_MOD_1;
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if ((GetKeyState(VK_CONTROL) & 0x8000) == 0x8000)
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gw->mouse->state |= BROWSER_MOUSE_MOD_2;
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if ((GetKeyState(VK_MENU) & 0x8000) == 0x8000)
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gw->mouse->state |= BROWSER_MOUSE_MOD_3;
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gw->mouse->pressed_x = x + gw->scrollx;
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gw->mouse->pressed_y = y + gw->scrolly;
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NSLOG(netsurf, INFO, "mouse click bw %p, state %x, x %d, y %d",
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gw->bw,
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gw->mouse->state,
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x + gw->scrollx,
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y + gw->scrolly);
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browser_window_mouse_click(gw->bw,
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gw->mouse->state,
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x + gw->scrollx,
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y + gw->scrolly);
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return 0;
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}
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/**
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* Handle mouse movement messages.
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*/
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static LRESULT
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nsws_drawable_mousemove(struct gui_window *gw, int x, int y)
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{
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bool shift = ((GetKeyState(VK_SHIFT) & 0x8000) == 0x8000);
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bool ctrl = ((GetKeyState(VK_CONTROL) & 0x8000) == 0x8000);
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bool alt = ((GetKeyState(VK_MENU) & 0x8000) == 0x8000);
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if ((gw == NULL) || (gw->mouse == NULL) || (gw->bw == NULL))
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return 0;
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/* add scroll offsets */
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x = x + gw->scrollx;
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y = y + gw->scrolly;
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/* if mouse button held down and pointer moved more than
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* minimum distance drag is happening */
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if (((gw->mouse->state & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2)) != 0) &&
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(abs(x - gw->mouse->pressed_x) >= 5) &&
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(abs(y - gw->mouse->pressed_y) >= 5)) {
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NSLOG(netsurf, INFO, "Drag start state 0x%x",
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gw->mouse->state);
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if ((gw->mouse->state & BROWSER_MOUSE_PRESS_1) != 0) {
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browser_window_mouse_click(gw->bw, BROWSER_MOUSE_DRAG_1,
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gw->mouse->pressed_x,
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gw->mouse->pressed_y);
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gw->mouse->state &= ~BROWSER_MOUSE_PRESS_1;
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gw->mouse->state |= BROWSER_MOUSE_HOLDING_1 |
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BROWSER_MOUSE_DRAG_ON;
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}
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else if ((gw->mouse->state & BROWSER_MOUSE_PRESS_2) != 0) {
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browser_window_mouse_click(gw->bw, BROWSER_MOUSE_DRAG_2,
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gw->mouse->pressed_x,
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gw->mouse->pressed_y);
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gw->mouse->state &= ~BROWSER_MOUSE_PRESS_2;
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gw->mouse->state |= BROWSER_MOUSE_HOLDING_2 |
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BROWSER_MOUSE_DRAG_ON;
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}
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}
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if (((gw->mouse->state & BROWSER_MOUSE_MOD_1) != 0) && !shift)
|
|
gw->mouse->state &= ~BROWSER_MOUSE_MOD_1;
|
|
if (((gw->mouse->state & BROWSER_MOUSE_MOD_2) != 0) && !ctrl)
|
|
gw->mouse->state &= ~BROWSER_MOUSE_MOD_2;
|
|
if (((gw->mouse->state & BROWSER_MOUSE_MOD_3) != 0) && !alt)
|
|
gw->mouse->state &= ~BROWSER_MOUSE_MOD_3;
|
|
|
|
|
|
browser_window_mouse_track(gw->bw, gw->mouse->state, x, y);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called when activity occours within the drawable window.
|
|
*/
|
|
static LRESULT CALLBACK
|
|
nsws_window_drawable_event_callback(HWND hwnd,
|
|
UINT msg,
|
|
WPARAM wparam,
|
|
LPARAM lparam)
|
|
{
|
|
struct gui_window *gw;
|
|
|
|
LOG_WIN_MSG(hwnd, msg, wparam, lparam);
|
|
|
|
gw = nsws_get_gui_window(hwnd);
|
|
if (gw == NULL) {
|
|
NSLOG(netsurf, INFO,
|
|
"Unable to find gui window structure for hwnd %p", hwnd);
|
|
return DefWindowProc(hwnd, msg, wparam, lparam);
|
|
}
|
|
|
|
switch(msg) {
|
|
|
|
case WM_MOUSEMOVE:
|
|
return nsws_drawable_mousemove(gw,
|
|
GET_X_LPARAM(lparam),
|
|
GET_Y_LPARAM(lparam));
|
|
|
|
case WM_LBUTTONDOWN:
|
|
nsws_drawable_mousedown(gw,
|
|
GET_X_LPARAM(lparam),
|
|
GET_Y_LPARAM(lparam),
|
|
BROWSER_MOUSE_PRESS_1);
|
|
SetFocus(hwnd);
|
|
nsw32_local_history_hide();
|
|
return 0;
|
|
|
|
case WM_RBUTTONDOWN:
|
|
nsws_drawable_mousedown(gw,
|
|
GET_X_LPARAM(lparam),
|
|
GET_Y_LPARAM(lparam),
|
|
BROWSER_MOUSE_PRESS_2);
|
|
SetFocus(hwnd);
|
|
return 0;
|
|
|
|
case WM_LBUTTONUP:
|
|
return nsws_drawable_mouseup(gw,
|
|
GET_X_LPARAM(lparam),
|
|
GET_Y_LPARAM(lparam),
|
|
BROWSER_MOUSE_PRESS_1,
|
|
BROWSER_MOUSE_CLICK_1);
|
|
|
|
case WM_RBUTTONUP:
|
|
return nsws_drawable_mouseup(gw,
|
|
GET_X_LPARAM(lparam),
|
|
GET_Y_LPARAM(lparam),
|
|
BROWSER_MOUSE_PRESS_2,
|
|
BROWSER_MOUSE_CLICK_2);
|
|
|
|
case WM_ERASEBKGND: /* ignore as drawable window is redrawn on paint */
|
|
return 0;
|
|
|
|
case WM_PAINT: /* redraw the exposed part of the window */
|
|
return nsws_drawable_paint(gw, hwnd);
|
|
|
|
case WM_KEYDOWN:
|
|
if (nsws_drawable_keydown(gw, hwnd, wparam) == 0) {
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case WM_CHAR:
|
|
return nsws_drawable_char(gw, hwnd, wparam);
|
|
|
|
case WM_UNICHAR:
|
|
return nsws_drawable_unichar(gw, hwnd, wparam);
|
|
|
|
case WM_SIZE:
|
|
return nsws_drawable_resize(gw);
|
|
|
|
case WM_HSCROLL:
|
|
return nsws_drawable_hscroll(gw, hwnd, wparam);
|
|
|
|
case WM_VSCROLL:
|
|
return nsws_drawable_vscroll(gw, hwnd, wparam);
|
|
|
|
case WM_MOUSEWHEEL:
|
|
return nsws_drawable_wheel(gw, hwnd, wparam);
|
|
|
|
case WM_PASTE:
|
|
browser_window_key_press(gw->bw, NS_KEY_PASTE);
|
|
return 0;
|
|
|
|
case WM_COPY:
|
|
browser_window_key_press(gw->bw, NS_KEY_COPY_SELECTION);
|
|
return 0;
|
|
|
|
case WM_CUT:
|
|
browser_window_key_press(gw->bw, NS_KEY_CUT_SELECTION);
|
|
return 0;
|
|
|
|
case WM_CLEAR:
|
|
/**
|
|
* \todo win32 clear operation deletes the contents of
|
|
* the selection but ns clear selection only
|
|
* removes the highlight.
|
|
*/
|
|
browser_window_key_press(gw->bw, NS_KEY_CLEAR_SELECTION);
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
return DefWindowProc(hwnd, msg, wparam, lparam);
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a drawable window.
|
|
*/
|
|
HWND
|
|
nsws_window_create_drawable(HINSTANCE hinstance,
|
|
HWND hparent,
|
|
struct gui_window *gw)
|
|
{
|
|
HWND hwnd;
|
|
hwnd = CreateWindowExW(0,
|
|
windowclassname_drawable,
|
|
NULL,
|
|
WS_VISIBLE | WS_CHILD,
|
|
0, 0,
|
|
0, 0,
|
|
hparent,
|
|
NULL,
|
|
hinstance,
|
|
NULL);
|
|
|
|
if (hwnd == NULL) {
|
|
win_perror("WindowCreateDrawable");
|
|
NSLOG(netsurf, INFO, "Window creation failed");
|
|
return NULL;
|
|
}
|
|
|
|
/* set the gui window associated with this toolbar */
|
|
SetProp(hwnd, TEXT("GuiWnd"), (HANDLE)gw);
|
|
|
|
return hwnd;
|
|
}
|
|
|
|
|
|
/**
|
|
* Create the drawable window class.
|
|
*/
|
|
nserror
|
|
nsws_create_drawable_class(HINSTANCE hinstance) {
|
|
nserror ret = NSERROR_OK;
|
|
WNDCLASSEXW w;
|
|
|
|
/* drawable area */
|
|
w.cbSize = sizeof(WNDCLASSEX);
|
|
w.style = 0;
|
|
w.lpfnWndProc = nsws_window_drawable_event_callback;
|
|
w.cbClsExtra = 0;
|
|
w.cbWndExtra = 0;
|
|
w.hInstance = hinstance;
|
|
w.hIcon = NULL;
|
|
w.hCursor = NULL;
|
|
w.hbrBackground = (HBRUSH)(COLOR_MENU + 1);
|
|
w.lpszMenuName = NULL;
|
|
w.lpszClassName = windowclassname_drawable;
|
|
w.hIconSm = NULL;
|
|
|
|
if (RegisterClassExW(&w) == 0) {
|
|
win_perror("DrawableClass");
|
|
ret = NSERROR_INIT_FAILED;
|
|
}
|
|
|
|
return ret;
|
|
}
|