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netsurf/windows/localhistory.c

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/*
* Copyright 2009 Mark Benjamin <netsurf-browser.org.MarkBenjamin@dfgh.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include "desktop/browser.h"
#include "desktop/history_core.h"
#include "desktop/plotters.h"
#include "utils/utils.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "windows/window.h"
#include "windows/localhistory.h"
#include "windows/gui.h"
#include "windows/plot.h"
#include "windows/resourceid.h"
#include "windows/windbg.h"
static const char windowclassname_localhistory[] = "nswslocalhistorywindow";
struct nsws_localhistory {
HWND hwnd; /**< the window handle */
int width; /**< the width of the memory history */
int height; /**< the height of the memory history */
int guiwidth; /**< the width of the history window */
int guiheight; /**< the height of the history window */
int vscroll; /**< the vertical scroll location */
int hscroll; /**< the horizontal scroll location */
};
static void nsws_localhistory_scroll_check(struct nsws_localhistory *l, struct gui_window *gw)
{
SCROLLINFO si;
if ((gw->bw == NULL) || (l->hwnd == NULL))
return;
history_size(gw->bw->history, &(l->width), &(l->height));
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
si.nMin = 0;
si.nMax = l->height;
si.nPage = l->guiheight;
si.nPos = 0;
SetScrollInfo(l->hwnd, SB_VERT, &si, TRUE);
si.nMax = l->width;
si.nPage = l->guiwidth;
SetScrollInfo(l->hwnd, SB_HORZ, &si, TRUE);
if (l->guiheight >= l->height)
l->vscroll = 0;
if (l->guiwidth >= l->width)
l->hscroll = 0;
SendMessage(l->hwnd, WM_PAINT, 0, 0);
}
static void nsws_localhistory_up(struct nsws_localhistory *l, struct gui_window *gw)
{
HDC tmp_hdc;
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &win_plotters
};
LOG(("gui window %p", gw));
l->vscroll = 0;
l->hscroll = 0;
if (gw->bw != NULL) {
/* set global HDC for the plotters */
tmp_hdc = plot_hdc;
plot_hdc = GetDC(l->hwnd);
history_redraw(gw->bw->history, &ctx);
ReleaseDC(l->hwnd, plot_hdc);
plot_hdc = tmp_hdc;
}
nsws_localhistory_scroll_check(l, gw);
}
/*
void history_gui_set_pointer(gui_pointer_shape shape, void *p)
{
struct nsws_pointers *pointers = nsws_get_pointers();
if (pointers == NULL)
return;
switch(shape) {
case GUI_POINTER_POINT:
SetCursor(pointers->hand);
break;
default:
SetCursor(pointers->arrow);
break;
}
}
*/
void nsws_localhistory_close(struct gui_window *w)
{
struct nsws_localhistory *l = gui_window_localhistory(w);
if (l != NULL)
CloseWindow(l->hwnd);
}
static LRESULT CALLBACK
nsws_localhistory_event_callback(HWND hwnd, UINT msg,
WPARAM wparam, LPARAM lparam)
{
int x,y;
struct gui_window *gw;
LOG_WIN_MSG(hwnd, msg, wparam, lparam);
gw = nsws_get_gui_window(hwnd);
if (gw == NULL) {
LOG(("Unable to find gui window structure for hwnd %p", hwnd));
return DefWindowProc(hwnd, msg, wparam, lparam);
}
switch(msg) {
case WM_CREATE:
nsws_localhistory_scroll_check(gw->localhistory, gw);
break;
case WM_SIZE:
gw->localhistory->guiheight = HIWORD(lparam);
gw->localhistory->guiwidth = LOWORD(lparam);
nsws_localhistory_scroll_check(gw->localhistory, gw);
break;
case WM_LBUTTONUP:
if (gw->bw == NULL)
break;
x = GET_X_LPARAM(lparam);
y = GET_Y_LPARAM(lparam);
if (history_click(gw->bw,
gw->bw->history,
gw->localhistory->hscroll + x,
gw->localhistory->vscroll + y,
false)) {
DestroyWindow(hwnd);
}
break;
case WM_MOUSEMOVE:
x = GET_X_LPARAM(lparam);
y = GET_Y_LPARAM(lparam);
/* if (gw->bw != NULL)
history_hover(gw->bw->history, x, y, (void *)hwnd);*/
return DefWindowProc(hwnd, msg, wparam, lparam);
break;
case WM_VSCROLL:
{
SCROLLINFO si;
int mem;
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetScrollInfo(hwnd, SB_VERT, &si);
mem = si.nPos;
switch (LOWORD(wparam)) {
case SB_TOP:
si.nPos = si.nMin;
break;
case SB_BOTTOM:
si.nPos = si.nMax;
break;
case SB_LINEUP:
si.nPos -= 30;
break;
case SB_LINEDOWN:
si.nPos += 30;
break;
case SB_PAGEUP:
si.nPos -= gw->localhistory->guiheight;
break;
case SB_PAGEDOWN:
si.nPos += gw->localhistory->guiheight;
break;
case SB_THUMBTRACK:
si.nPos = si.nTrackPos;
break;
default:
break;
}
si.nPos = min(si.nPos, gw->localhistory->height);
si.nPos = min(si.nPos, 0);
si.fMask = SIF_POS;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
GetScrollInfo(hwnd, SB_VERT, &si);
if (si.nPos != mem) {
gw->localhistory->vscroll += si.nPos - mem;
ScrollWindowEx(hwnd, 0, -(si.nPos - mem), NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
}
break;
}
case WM_HSCROLL:
{
SCROLLINFO si;
int mem;
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetScrollInfo(hwnd, SB_HORZ, &si);
mem = si.nPos;
switch (LOWORD(wparam)) {
case SB_LINELEFT:
si.nPos -= 30;
break;
case SB_LINERIGHT:
si.nPos += 30;
break;
case SB_PAGELEFT:
si.nPos -= gw->localhistory->guiwidth;
break;
case SB_PAGERIGHT:
si.nPos += gw->localhistory->guiwidth;
break;
case SB_THUMBTRACK:
si.nPos = si.nTrackPos;
break;
default:
break;
}
si.nPos = min(si.nPos, gw->localhistory->width);
si.nPos = max(si.nPos, 0);
si.fMask = SIF_POS;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
GetScrollInfo(hwnd, SB_HORZ, &si);
if (si.nPos != mem) {
gw->localhistory->hscroll += si.nPos - mem;
ScrollWindowEx(hwnd, -(si.nPos - mem), 0, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
}
break;
}
case WM_PAINT: {
PAINTSTRUCT ps;
HDC hdc, tmp_hdc;
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &win_plotters
};
hdc = BeginPaint(hwnd, &ps);
if (gw->bw != NULL) {
/* set global HDC for the plotters */
tmp_hdc = plot_hdc;
plot_hdc = hdc;
history_redraw_rectangle(gw->bw->history,
gw->localhistory->hscroll + ps.rcPaint.left,
gw->localhistory->vscroll + ps.rcPaint.top,
gw->localhistory->hscroll + (ps.rcPaint.right - ps.rcPaint.left),
gw->localhistory->vscroll + (ps.rcPaint.bottom - ps.rcPaint.top),
ps.rcPaint.left,
ps.rcPaint.top, &ctx);
plot_hdc = tmp_hdc;
}
EndPaint(hwnd, &ps);
break;
}
case WM_CLOSE:
DestroyWindow(hwnd);
return 1;
case WM_DESTROY:
free(gw->localhistory);
gw->localhistory = NULL;
break;
default:
return DefWindowProc(hwnd, msg, wparam, lparam);
}
return 0;
}
/* exported method documented in windows/localhistory.h */
struct nsws_localhistory *nsws_window_create_localhistory(struct gui_window *gw)
{
struct nsws_localhistory *localhistory;
INITCOMMONCONTROLSEX icc;
int margin = 50;
RECT r;
LOG(("gui window %p", gw));
/* if we already have a window, just update and re-show it */
if (gw->localhistory != NULL) {
nsws_localhistory_up(gw->localhistory, gw);
UpdateWindow(gw->localhistory->hwnd);
ShowWindow(gw->localhistory->hwnd, SW_SHOWNORMAL);
return gw->localhistory;
}
localhistory = calloc(1, sizeof(struct nsws_localhistory));
if (localhistory == NULL) {
return NULL;
}
gw->localhistory = localhistory;
localhistory->width = 0;
localhistory->height = 0;
if ((gw->bw != NULL) && (gw->bw->history != NULL)) {
history_size(gw->bw->history,
&(localhistory->width),
&(localhistory->height));
}
GetWindowRect(gw->main, &r);
SetWindowPos(gw->main, HWND_NOTOPMOST, 0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE);
localhistory->guiwidth = min(r.right - r.left - margin,
localhistory->width + margin);
localhistory->guiheight = min(r.bottom - r.top - margin,
localhistory->height + margin);
icc.dwSize = sizeof(icc);
icc.dwICC = ICC_BAR_CLASSES | ICC_WIN95_CLASSES;
#if WINVER > 0x0501
icc.dwICC |= ICC_STANDARD_CLASSES;
#endif
InitCommonControlsEx(&icc);
LOG(("creating local history window for hInstance %p", hInstance));
localhistory->hwnd = CreateWindow(windowclassname_localhistory,
"NetSurf History",
WS_THICKFRAME | WS_HSCROLL |
WS_VSCROLL | WS_CLIPCHILDREN |
WS_CLIPSIBLINGS | WS_SYSMENU | CS_DBLCLKS,
r.left + margin/2,
r.top + margin/2,
localhistory->guiwidth,
localhistory->guiheight,
NULL, NULL, hInstance, NULL);
/* set the gui window associated with this browser */
SetProp(localhistory->hwnd, TEXT("GuiWnd"), (HANDLE)gw);
LOG(("gui_window %p width %d height %d hwnd %p", gw,
localhistory->guiwidth, localhistory->guiheight,
localhistory->hwnd));
nsws_localhistory_up(localhistory, gw);
UpdateWindow(localhistory->hwnd);
ShowWindow(localhistory->hwnd, SW_SHOWNORMAL);
return localhistory;
}
/* exported method documented in windows/localhistory.h */
nserror
nsws_create_localhistory_class(HINSTANCE hinstance) {
nserror ret = NSERROR_OK;
WNDCLASSEX w;
/* localhistory window */
w.cbSize = sizeof(WNDCLASSEX);
w.style = 0;
w.lpfnWndProc = nsws_localhistory_event_callback;
w.cbClsExtra = 0;
w.cbWndExtra = 0;
w.hInstance = hinstance;
w.hIcon = LoadIcon(hinstance, MAKEINTRESOURCE(IDR_NETSURF_ICON));
w.hCursor = LoadCursor(NULL, IDC_ARROW);
w.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
w.lpszMenuName = NULL;
w.lpszClassName = windowclassname_localhistory;
w.hIconSm = LoadIcon(hinstance, MAKEINTRESOURCE(IDR_NETSURF_ICON));
if (RegisterClassEx(&w) == 0) {
win_perror("DrawableClass");
ret = NSERROR_INIT_FAILED;
}
return ret;
}
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