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netsurf/frontends/riscos/pageinfo.c

325 lines
7.5 KiB

/*
* Copyright 2020 Vincent Sanders <vince@netsurf-browser.org>
*
* 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/>.
*/
/**
* \file
* Implementation of RISC OS page info core window.
*/
#include <stdint.h>
#include <stdlib.h>
#include <oslib/wimp.h>
#include "utils/log.h"
#include "netsurf/mouse.h"
#include "netsurf/plotters.h"
#include "desktop/page-info.h"
#include "riscos/gui.h"
#include "riscos/dialog.h"
#include "riscos/toolbar.h"
#include "riscos/wimputils.h"
#include "riscos/corewindow.h"
#include "riscos/pageinfo.h"
/**
* Page info window container for RISC OS.
*/
struct ro_pageinfo_window {
struct ro_corewindow core;
/** Core page-info window */
struct page_info *pgi;
};
/** page info window is a singleton */
static struct ro_pageinfo_window *pageinfo_window = NULL;
/** riscos template for pageinfo window */
static wimp_window *dialog_pageinfo_template;
/**
* callback to draw on drawable area of ro page info window
*
* \param ro_cw The riscos core window structure.
* \param r The rectangle of the window that needs updating.
* \param originx The risc os plotter x origin.
* \param originy The risc os plotter y origin.
* \return NSERROR_OK on success otherwise apropriate error code
*/
static nserror
ro_pageinfo_draw(struct ro_corewindow *ro_cw,
int originx,
int originy,
struct rect *r)
{
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &ro_plotters
};
struct ro_pageinfo_window *lhw;
lhw = (struct ro_pageinfo_window *)ro_cw;
ro_plot_origin_x = originx;
ro_plot_origin_y = originy;
no_font_blending = true;
page_info_redraw(lhw->pgi, 0, 0, r, &ctx);
no_font_blending = false;
return NSERROR_OK;
}
/**
* callback for keypress on ro coookie window
*
* \param ro_cw The ro core window structure.
* \param nskey The netsurf key code.
* \return NSERROR_OK if key processed,
* NSERROR_NOT_IMPLEMENTED if key not processed
* otherwise apropriate error code
*/
static nserror
ro_pageinfo_key(struct ro_corewindow *ro_cw, uint32_t nskey)
{
struct ro_pageinfo_window *lhw;
lhw = (struct ro_pageinfo_window *)ro_cw;
if (page_info_keypress(lhw->pgi, nskey)) {
return NSERROR_OK;
}
return NSERROR_NOT_IMPLEMENTED;
}
/**
* callback for mouse event on ro page info window
*
* \param ro_cw The ro core window structure.
* \param mouse_state mouse state
* \param x location of event
* \param y location of event
* \return NSERROR_OK on sucess otherwise apropriate error code.
*/
static nserror
ro_pageinfo_mouse(struct ro_corewindow *ro_cw,
browser_mouse_state mouse_state,
int x, int y)
{
struct ro_pageinfo_window *pgiw;
pgiw = (struct ro_pageinfo_window *)ro_cw;
bool did_something = false;
if (page_info_mouse_action(pgiw->pgi, mouse_state, x, y, &did_something) == NSERROR_OK) {
if (did_something == true) {
/* Something happened so we need to close ourselves */
ro_gui_dialog_close(ro_cw->wh);
}
}
if ((mouse_state & BROWSER_MOUSE_LEAVE) != 0) {
ro_gui_dialog_close(ro_cw->wh);
}
return NSERROR_OK;
}
/**
* Creates the window for the page info tree.
*
* \return NSERROR_OK on success else appropriate error code on faliure.
*/
static nserror
ro_pageinfo_init(struct browser_window *bw,
struct ro_pageinfo_window **win_out)
{
os_error *error;
struct ro_pageinfo_window *ncwin;
nserror res;
/* memoise window so it can be represented when necessary
* instead of recreating every time.
*/
if ((*win_out) != NULL) {
res = page_info_set((*win_out)->pgi, bw);
return res;
}
ncwin = calloc(1, sizeof(*ncwin));
if (ncwin == NULL) {
return NSERROR_NOMEM;
}
/* create window from template */
error = xwimp_create_window(dialog_pageinfo_template,
&ncwin->core.wh);
if (error) {
NSLOG(netsurf, INFO, "xwimp_create_window: 0x%x: %s",
error->errnum, error->errmess);
ro_warn_user("WimpError", error->errmess);
free(ncwin);
return NSERROR_NOMEM;
}
/* initialise callbacks */
ncwin->core.draw = ro_pageinfo_draw;
ncwin->core.key = ro_pageinfo_key;
ncwin->core.mouse = ro_pageinfo_mouse;
/* initialise core window */
res = ro_corewindow_init(&ncwin->core,
NULL,
NULL,
0,
NULL);
if (res != NSERROR_OK) {
free(ncwin);
return res;
}
res = page_info_create((struct core_window *)ncwin,
bw,
&ncwin->pgi);
if (res != NSERROR_OK) {
free(ncwin);
return res;
}
*win_out = ncwin;
return NSERROR_OK;
}
/**
* open RISC OS page info window at the correct size
*/
static nserror
ro_pageinfo_open(struct ro_pageinfo_window *lhw, wimp_w parent)
{
nserror res;
int width, height;
os_box box = {0, 0, 0, 0};
wimp_window_state state;
os_error *error;
res = page_info_get_size(lhw->pgi, &width, &height);
if (res != NSERROR_OK) {
return res;
}
width *= 2;
height *= 2;
/* set extent */
box.x1 = width;
box.y0 = -height;
error = xwimp_set_extent(lhw->core.wh, &box);
if (error) {
NSLOG(netsurf, INFO, "xwimp_set_extent: 0x%x: %s",
error->errnum, error->errmess);
ro_warn_user("WimpError", error->errmess);
return NSERROR_NOMEM;
}
/* open full size */
state.w = lhw->core.wh;
error = xwimp_get_window_state(&state);
if (error) {
NSLOG(netsurf, INFO, "xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess);
ro_warn_user("WimpError", error->errmess);
return NSERROR_NOMEM;
}
state.visible.x0 = 0;
state.visible.y0 = 0;
state.visible.x1 = width;
state.visible.y1 = height;
state.next = wimp_HIDDEN;
error = xwimp_open_window(PTR_WIMP_OPEN(&state));
if (error) {
NSLOG(netsurf, INFO, "xwimp_open_window: 0x%x: %s",
error->errnum, error->errmess);
ro_warn_user("WimpError", error->errmess);
return NSERROR_NOMEM;
}
ro_gui_dialog_open_persistent(parent, lhw->core.wh, true);
/* Give the window focus. */
error = xwimp_set_caret_position(lhw->core.wh, -1, 0, 0, -1, 0);
if (error) {
NSLOG(netsurf, INFO,
"xwimp_set_caret_position: 0x%x : %s",
error->errnum,
error->errmess);
}
return NSERROR_OK;
}
/* exported interface documented in riscos/pageinfo.h */
nserror ro_gui_pageinfo_initialise(void)
{
dialog_pageinfo_template = ro_gui_dialog_load_template("corepginfo");
return NSERROR_OK;
}
/* exported interface documented in riscos/pageinfo.h */
nserror ro_gui_pageinfo_present(struct gui_window *gw)
{
nserror res;
res = ro_pageinfo_init(gw->bw, &pageinfo_window);
if (res == NSERROR_OK) {
NSLOG(netsurf, INFO, "Presenting");
res = ro_pageinfo_open(pageinfo_window, gw->window);
} else {
NSLOG(netsurf, INFO, "Failed presenting error code %d", res);
}
return res;
}
/* exported interface documented in riscos/pageinfo.h */
nserror ro_gui_pageinfo_finalise(void)
{
nserror res;
if (pageinfo_window == NULL) {
return NSERROR_OK;
}
res = page_info_destroy(pageinfo_window->pgi);
if (res == NSERROR_OK) {
res = ro_corewindow_fini(&pageinfo_window->core);
free(pageinfo_window);
pageinfo_window = NULL;
}
return res;
}