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-rw-r--r--frontends/framebuffer/corewindow.c261
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diff --git a/frontends/framebuffer/corewindow.c b/frontends/framebuffer/corewindow.c
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+/*
+ * Copyright 2017 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
+ * framebuffer generic core window interface.
+ *
+ * Provides interface for core renderers to the framebufefr toolkit
+ * drawable area.
+ *
+ * This module is an object that must be encapsulated. Client users
+ * should embed a struct fb_corewindow at the beginning of their
+ * context for this display surface, fill in relevant data and then
+ * call fb_corewindow_init()
+ *
+ * The fb core window structure requires the callback for draw, key and
+ * mouse operations.
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include <libnsfb.h>
+#include <libnsfb_plot.h>
+#include <libnsfb_event.h>
+
+#include "utils/log.h"
+#include "utils/utils.h"
+#include "utils/messages.h"
+#include "utils/utf8.h"
+#include "utils/nsoption.h"
+#include "netsurf/keypress.h"
+#include "netsurf/mouse.h"
+#include "netsurf/plot_style.h"
+
+#include "framebuffer/gui.h"
+#include "framebuffer/fbtk.h"
+#include "framebuffer/corewindow.h"
+
+
+/* toolkit event handlers that do generic things and call internal callbacks */
+
+
+static int
+fb_cw_mouse_press_event(fbtk_widget_t *widget, fbtk_callback_info *cbi)
+{
+ struct fb_corewindow *fb_cw = (struct fb_corewindow *)cbi->context;
+ browser_mouse_state state;
+
+ /** \todo frambuffer corewindow mouse event handling needs improving */
+ if (cbi->event->type != NSFB_EVENT_KEY_UP) {
+ state = BROWSER_MOUSE_HOVER;
+ } else {
+ state = BROWSER_MOUSE_PRESS_1;
+ }
+
+ fb_cw->mouse(fb_cw, state, cbi->x, cbi->y);
+
+ return 1;
+}
+
+/*
+static bool
+fb_cw_input_event(toolkit_widget *widget, void *ctx)
+{
+ struct fb_corewindow *fb_cw = (struct fb_corewindow *)ctx;
+
+ fb_cw->key(fb_cw, keycode);
+
+ return true;
+}
+*/
+
+/**
+ * handler for toolkit window redraw event
+ */
+static int fb_cw_draw_event(fbtk_widget_t *widget, fbtk_callback_info *cbi)
+{
+ struct fb_corewindow *fb_cw;
+ nsfb_bbox_t rbox;
+ struct rect clip;
+
+ fb_cw = (struct fb_corewindow *)cbi->context;
+
+ rbox.x0 = fbtk_get_absx(widget);
+ rbox.y0 = fbtk_get_absy(widget);
+
+ rbox.x1 = rbox.x0 + fbtk_get_width(widget);
+ rbox.y1 = rbox.y0 + fbtk_get_height(widget);
+
+ nsfb_claim(fbtk_get_nsfb(widget), &rbox);
+
+ clip.x0 = fb_cw->scrollx;
+ clip.y0 = fb_cw->scrolly;
+ clip.x1 = fbtk_get_width(widget) + fb_cw->scrollx;
+ clip.y1 = fbtk_get_height(widget) + fb_cw->scrolly;
+
+ fb_cw->draw(fb_cw, &clip);
+
+ nsfb_update(fbtk_get_nsfb(widget), &rbox);
+
+ return 0;
+}
+
+
+/**
+ * callback from core to request a redraw
+ */
+static nserror
+fb_cw_invalidate(struct core_window *cw, const struct rect *r)
+{
+/* struct fb_corewindow *fb_cw = (struct fb_corewindow *)cw;
+
+ toolkit_widget_queue_draw_area(fb_cw->widget,
+ r->x0, r->y0,
+ r->x1 - r->x0, r->y1 - r->y0);
+*/
+ return NSERROR_OK;
+}
+
+
+static void
+fb_cw_update_size(struct core_window *cw, int width, int height)
+{
+/* struct fb_corewindow *fb_cw = (struct fb_corewindow *)cw;
+
+ toolkit_widget_set_size_request(FB_WIDGET(fb_cw->drawing_area),
+ width, height);
+*/
+}
+
+
+static void
+fb_cw_scroll_visible(struct core_window *cw, const struct rect *r)
+{
+/* struct fb_corewindow *fb_cw = (struct fb_corewindow *)cw;
+
+ toolkit_scroll_widget(fb_cw->widget, r);
+*/
+}
+
+
+static void
+fb_cw_get_window_dimensions(struct core_window *cw, int *width, int *height)
+{
+ struct fb_corewindow *fb_cw = (struct fb_corewindow *)cw;
+
+ *width = fbtk_get_width(fb_cw->drawable);
+ *height = fbtk_get_height(fb_cw->drawable);
+}
+
+
+static void
+fb_cw_drag_status(struct core_window *cw, core_window_drag_status ds)
+{
+ struct fb_corewindow *fb_cw = (struct fb_corewindow *)cw;
+ fb_cw->drag_staus = ds;
+}
+
+
+struct core_window_callback_table fb_cw_cb_table = {
+ .invalidate = fb_cw_invalidate,
+ .update_size = fb_cw_update_size,
+ .scroll_visible = fb_cw_scroll_visible,
+ .get_window_dimensions = fb_cw_get_window_dimensions,
+ .drag_status = fb_cw_drag_status
+};
+
+/* exported function documented fb/corewindow.h */
+nserror fb_corewindow_init(fbtk_widget_t *parent, struct fb_corewindow *fb_cw)
+{
+ int furniture_width;
+
+ furniture_width = nsoption_int(fb_furniture_size);
+
+ /* setup the core window callback table */
+ fb_cw->cb_table = &fb_cw_cb_table;
+
+ /* container window */
+ fb_cw->wnd = fbtk_create_window(parent, 0, 0, 0, 0, 0);
+
+ fb_cw->drawable = fbtk_create_user(fb_cw->wnd,
+ 0, 0,
+ -furniture_width, -furniture_width,
+ fb_cw);
+
+ fbtk_set_handler(fb_cw->drawable,
+ FBTK_CBT_REDRAW,
+ fb_cw_draw_event,
+ fb_cw);
+
+ fbtk_set_handler(fb_cw->drawable,
+ FBTK_CBT_CLICK,
+ fb_cw_mouse_press_event,
+ fb_cw);
+/*
+ fbtk_set_handler(fb_cw->drawable,
+ FBTK_CBT_INPUT,
+ fb_cw_input_event,
+ fb_cw);
+
+ fbtk_set_handler(fb_cw->drawable,
+ FBTK_CBT_POINTERMOVE,
+ fb_cw_move_event,
+ fb_cw);
+*/
+
+ /* create horizontal scrollbar */
+ fb_cw->hscroll = fbtk_create_hscroll(fb_cw->wnd,
+ 0,
+ fbtk_get_height(fb_cw->wnd) - furniture_width,
+ fbtk_get_width(fb_cw->wnd) - furniture_width,
+ furniture_width,
+ FB_SCROLL_COLOUR,
+ FB_FRAME_COLOUR,
+ NULL,
+ NULL);
+
+ fb_cw->vscroll = fbtk_create_vscroll(fb_cw->wnd,
+ fbtk_get_width(fb_cw->wnd) - furniture_width,
+ 0,
+ furniture_width,
+ fbtk_get_height(fb_cw->wnd) - furniture_width,
+ FB_SCROLL_COLOUR,
+ FB_FRAME_COLOUR,
+ NULL,
+ NULL);
+
+ fbtk_create_fill(fb_cw->wnd,
+ fbtk_get_width(fb_cw->wnd) - furniture_width,
+ fbtk_get_height(fb_cw->wnd) - furniture_width,
+ furniture_width,
+ furniture_width,
+ FB_FRAME_COLOUR);
+
+
+ return NSERROR_OK;
+}
+
+/* exported interface documented in fb/corewindow.h */
+nserror fb_corewindow_fini(struct fb_corewindow *fb_cw)
+{
+ return NSERROR_OK;
+}