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netsurf/frontends/gtk/window.c

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/*
* Copyright 2006 Daniel Silverstone <dsilvers@digital-scurf.org>
* Copyright 2006 Rob Kendrick <rjek@rjek.com>
*
* 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 gtk windowing.
*/
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <limits.h>
#include <assert.h>
#include <math.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk-pixbuf/gdk-pixdata.h>
#include "utils/log.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "utils/nsoption.h"
#include "netsurf/content.h"
#include "netsurf/browser_window.h"
#include "netsurf/mouse.h"
#include "netsurf/window.h"
#include "netsurf/plotters.h"
#include "netsurf/form.h"
#include "netsurf/keypress.h"
#include "desktop/textarea.h"
#include "desktop/searchweb.h"
#include "desktop/textinput.h"
#include "gtk/window.h"
#include "gtk/selection.h"
#include "gtk/warn.h"
#include "gtk/compat.h"
#include "gtk/gui.h"
#include "gtk/scaffolding.h"
#include "gtk/plotters.h"
#include "gtk/schedule.h"
#include "gtk/tabs.h"
#include "gtk/bitmap.h"
#include "gtk/gdk.h"
#include "gtk/resources.h"
static GtkWidget *select_menu;
static struct form_control *select_menu_control;
static void nsgtk_select_menu_clicked(GtkCheckMenuItem *checkmenuitem,
gpointer user_data);
struct gui_window {
/**
* The gtk scaffold object containing menu, buttons, url bar, [tabs],
* drawing area, etc that may contain one or more gui_windows.
*/
struct nsgtk_scaffolding *scaffold;
/** The 'content' window that is rendered in the gui_window */
struct browser_window *bw;
/** mouse state and events. */
struct {
struct gui_window *gui;
gdouble pressed_x;
gdouble pressed_y;
gboolean waiting;
browser_mouse_state state;
} mouse;
/** caret dimension and location for rendering */
int caretx, carety, careth;
/** caret shape for rendering */
gui_pointer_shape current_pointer;
/** previous event location */
int last_x, last_y;
/** The top level container (tabContents) */
GtkWidget *container;
/** display widget for this page or frame */
GtkLayout *layout;
/** handle to the the visible tab */
GtkWidget *tab;
/** statusbar */
GtkLabel *status_bar;
/** status pane */
GtkPaned *paned;
/** has the status pane had its first size operation yet? */
bool paned_sized;
/** to allow disactivation / resume of normal window behaviour */
gulong signalhandler[NSGTK_WINDOW_SIGNAL_COUNT];
/** The icon this window should have */
GdkPixbuf *icon;
/** The input method to use with this window */
GtkIMContext *input_method;
/** list for cleanup */
struct gui_window *next, *prev;
};
/**< first entry in window list */
struct gui_window *window_list = NULL;
/** flag controlling opening of tabs in teh background */
int temp_open_background = -1;
struct nsgtk_scaffolding *nsgtk_get_scaffold(struct gui_window *g)
{
return g->scaffold;
}
GdkPixbuf *nsgtk_get_icon(struct gui_window *gw)
{
return gw->icon;
}
struct browser_window *nsgtk_get_browser_window(struct gui_window *g)
{
return g->bw;
}
unsigned long nsgtk_window_get_signalhandler(struct gui_window *g, int i)
{
return g->signalhandler[i];
}
GtkLayout *nsgtk_window_get_layout(struct gui_window *g)
{
return g->layout;
}
GtkWidget *nsgtk_window_get_tab(struct gui_window *g)
{
return g->tab;
}
void nsgtk_window_set_tab(struct gui_window *g, GtkWidget *w)
{
g->tab = w;
}
struct gui_window *nsgtk_window_iterate(struct gui_window *g)
{
return g->next;
}
float nsgtk_get_scale_for_gui(struct gui_window *g)
{
return browser_window_get_scale(g->bw);
}
static void nsgtk_select_menu_clicked(GtkCheckMenuItem *checkmenuitem,
gpointer user_data)
{
form_select_process_selection(select_menu_control,
(intptr_t)user_data);
}
#if GTK_CHECK_VERSION(3,0,0)
static gboolean
nsgtk_window_draw_event(GtkWidget *widget, cairo_t *cr, gpointer data)
{
struct gui_window *gw = data;
struct gui_window *z;
struct rect clip;
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &nsgtk_plotters
};
double x1;
double y1;
double x2;
double y2;
assert(gw);
assert(gw->bw);
for (z = window_list; z && z != gw; z = z->next)
continue;
assert(z);
assert(GTK_WIDGET(gw->layout) == widget);
current_widget = (GtkWidget *)gw->layout;
current_cr = cr;
GtkAdjustment *vscroll = nsgtk_layout_get_vadjustment(gw->layout);
GtkAdjustment *hscroll = nsgtk_layout_get_hadjustment(gw->layout);
cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
clip.x0 = x1;
clip.y0 = y1;
clip.x1 = x2;
clip.y1 = y2;
browser_window_redraw(gw->bw,
-gtk_adjustment_get_value(hscroll),
-gtk_adjustment_get_value(vscroll),
&clip,
&ctx);
if (gw->careth != 0) {
nsgtk_plot_caret(gw->caretx, gw->carety, gw->careth);
}
current_widget = NULL;
return FALSE;
}
#else
static gboolean
nsgtk_window_draw_event(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
struct gui_window *gw = data;
struct gui_window *z;
struct rect clip;
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &nsgtk_plotters
};
assert(gw);
assert(gw->bw);
for (z = window_list; z && z != gw; z = z->next)
continue;
assert(z);
assert(GTK_WIDGET(gw->layout) == widget);
current_widget = (GtkWidget *)gw->layout;
current_cr = gdk_cairo_create(nsgtk_layout_get_bin_window(gw->layout));
clip.x0 = event->area.x;
clip.y0 = event->area.y;
clip.x1 = event->area.x + event->area.width;
clip.y1 = event->area.y + event->area.height;
browser_window_redraw(gw->bw, 0, 0, &clip, &ctx);
if (gw->careth != 0) {
nsgtk_plot_caret(gw->caretx, gw->carety, gw->careth);
}
cairo_destroy(current_cr);
current_widget = NULL;
return FALSE;
}
#endif
static gboolean nsgtk_window_motion_notify_event(GtkWidget *widget,
GdkEventMotion *event, gpointer data)
{
struct gui_window *g = data;
bool shift = event->state & GDK_SHIFT_MASK;
bool ctrl = event->state & GDK_CONTROL_MASK;
if ((fabs(event->x - g->last_x) < 5.0) &&
(fabs(event->y - g->last_y) < 5.0)) {
/* Mouse hasn't moved far enough from press coordinate
* for this to be considered a drag.
*/
return FALSE;
} else {
/* This is a drag, ensure it's always treated as such,
* even if we drag back over the press location.
*/
g->last_x = INT_MIN;
g->last_y = INT_MIN;
}
if (g->mouse.state & BROWSER_MOUSE_PRESS_1) {
/* Start button 1 drag */
browser_window_mouse_click(g->bw, BROWSER_MOUSE_DRAG_1,
g->mouse.pressed_x, g->mouse.pressed_y);
/* Replace PRESS with HOLDING and declare drag in progress */
g->mouse.state ^= (BROWSER_MOUSE_PRESS_1 |
BROWSER_MOUSE_HOLDING_1);
g->mouse.state |= BROWSER_MOUSE_DRAG_ON;
} else if (g->mouse.state & BROWSER_MOUSE_PRESS_2) {
/* Start button 2 drag */
browser_window_mouse_click(g->bw, BROWSER_MOUSE_DRAG_2,
g->mouse.pressed_x, g->mouse.pressed_y);
/* Replace PRESS with HOLDING and declare drag in progress */
g->mouse.state ^= (BROWSER_MOUSE_PRESS_2 |
BROWSER_MOUSE_HOLDING_2);
g->mouse.state |= BROWSER_MOUSE_DRAG_ON;
}
/* Handle modifiers being removed */
if (g->mouse.state & BROWSER_MOUSE_MOD_1 && !shift)
g->mouse.state ^= BROWSER_MOUSE_MOD_1;
if (g->mouse.state & BROWSER_MOUSE_MOD_2 && !ctrl)
g->mouse.state ^= BROWSER_MOUSE_MOD_2;
browser_window_mouse_track(g->bw, g->mouse.state,
event->x / browser_window_get_scale(g->bw),
event->y / browser_window_get_scale(g->bw));
return TRUE;
}
static gboolean nsgtk_window_button_press_event(GtkWidget *widget,
GdkEventButton *event, gpointer data)
{
struct gui_window *g = data;
gtk_im_context_reset(g->input_method);
gtk_widget_grab_focus(GTK_WIDGET(g->layout));
gtk_widget_hide(GTK_WIDGET(nsgtk_scaffolding_history_window(
g->scaffold)->window));
g->mouse.pressed_x = event->x / browser_window_get_scale(g->bw);
g->mouse.pressed_y = event->y / browser_window_get_scale(g->bw);
switch (event->button) {
case 1: /* Left button, usually. Pass to core as BUTTON 1. */
g->mouse.state = BROWSER_MOUSE_PRESS_1;
break;
case 2: /* Middle button, usually. Pass to core as BUTTON 2 */
g->mouse.state = BROWSER_MOUSE_PRESS_2;
break;
case 3: /* Right button, usually. Action button, context menu. */
browser_window_remove_caret(g->bw, true);
nsgtk_scaffolding_context_menu(g->scaffold,
g->mouse.pressed_x,
g->mouse.pressed_y);
return TRUE;
default:
return FALSE;
}
/* Modify for double & triple clicks */
if (event->type == GDK_3BUTTON_PRESS)
g->mouse.state |= BROWSER_MOUSE_TRIPLE_CLICK;
else if (event->type == GDK_2BUTTON_PRESS)
g->mouse.state |= BROWSER_MOUSE_DOUBLE_CLICK;
/* Handle the modifiers too */
if (event->state & GDK_SHIFT_MASK)
g->mouse.state |= BROWSER_MOUSE_MOD_1;
if (event->state & GDK_CONTROL_MASK)
g->mouse.state |= BROWSER_MOUSE_MOD_2;
/* Record where we pressed, for use when determining whether to start
* a drag in motion notify events. */
g->last_x = event->x;
g->last_y = event->y;
browser_window_mouse_click(g->bw, g->mouse.state, g->mouse.pressed_x,
g->mouse.pressed_y);
return TRUE;
}
static gboolean nsgtk_window_button_release_event(GtkWidget *widget,
GdkEventButton *event, gpointer data)
{
struct gui_window *g = data;
bool shift = event->state & GDK_SHIFT_MASK;
bool ctrl = event->state & GDK_CONTROL_MASK;
/* If the mouse state is PRESS then we are waiting for a release to emit
* a click event, otherwise just reset the state to nothing */
if (g->mouse.state & BROWSER_MOUSE_PRESS_1)
g->mouse.state ^= (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_CLICK_1);
else if (g->mouse.state & BROWSER_MOUSE_PRESS_2)
g->mouse.state ^= (BROWSER_MOUSE_PRESS_2 | BROWSER_MOUSE_CLICK_2);
/* Handle modifiers being removed */
if (g->mouse.state & BROWSER_MOUSE_MOD_1 && !shift)
g->mouse.state ^= BROWSER_MOUSE_MOD_1;
if (g->mouse.state & BROWSER_MOUSE_MOD_2 && !ctrl)
g->mouse.state ^= BROWSER_MOUSE_MOD_2;
if (g->mouse.state & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2)) {
browser_window_mouse_click(g->bw, g->mouse.state,
event->x / browser_window_get_scale(g->bw),
event->y / browser_window_get_scale(g->bw));
} else {
browser_window_mouse_track(g->bw, 0,
event->x / browser_window_get_scale(g->bw),
event->y / browser_window_get_scale(g->bw));
}
g->mouse.state = 0;
return TRUE;
}
static gboolean
nsgtk_window_scroll_event(GtkWidget *widget,
GdkEventScroll *event,
gpointer data)
{
struct gui_window *g = data;
double value;
double deltax = 0;
double deltay = 0;
GtkAdjustment *vscroll = nsgtk_layout_get_vadjustment(g->layout);
GtkAdjustment *hscroll = nsgtk_layout_get_hadjustment(g->layout);
GtkAllocation alloc;
switch (event->direction) {
case GDK_SCROLL_LEFT:
deltax = -1.0;
break;
case GDK_SCROLL_UP:
deltay = -1.0;
break;
case GDK_SCROLL_RIGHT:
deltax = 1.0;
break;
case GDK_SCROLL_DOWN:
deltay = 1.0;
break;
#if GTK_CHECK_VERSION(3,4,0)
case GDK_SCROLL_SMOOTH:
gdk_event_get_scroll_deltas((GdkEvent *)event, &deltax, &deltay);
break;
#endif
default:
LOG("Unhandled mouse scroll direction");
return TRUE;
}
deltax *= nsgtk_adjustment_get_step_increment(hscroll);
deltay *= nsgtk_adjustment_get_step_increment(vscroll);
if (browser_window_scroll_at_point(g->bw,
event->x / browser_window_get_scale(g->bw),
event->y / browser_window_get_scale(g->bw),
deltax, deltay) != true) {
/* core did not handle event so change adjustments */
/* Horizontal */
if (deltax != 0) {
value = gtk_adjustment_get_value(hscroll) + deltax;
/* @todo consider gtk_widget_get_allocated_width() */
nsgtk_widget_get_allocation(GTK_WIDGET(g->layout), &alloc);
if (value > nsgtk_adjustment_get_upper(hscroll) - alloc.width) {
value = nsgtk_adjustment_get_upper(hscroll) - alloc.width;
}
if (value < nsgtk_adjustment_get_lower(hscroll)) {
value = nsgtk_adjustment_get_lower(hscroll);
}
gtk_adjustment_set_value(hscroll, value);
}
/* Vertical */
if (deltay != 0) {
value = gtk_adjustment_get_value(vscroll) + deltay;
/* @todo consider gtk_widget_get_allocated_height */
nsgtk_widget_get_allocation(GTK_WIDGET(g->layout), &alloc);
if (value > (nsgtk_adjustment_get_upper(vscroll) - alloc.height)) {
value = nsgtk_adjustment_get_upper(vscroll) - alloc.height;
}
if (value < nsgtk_adjustment_get_lower(vscroll)) {
value = nsgtk_adjustment_get_lower(vscroll);
}
gtk_adjustment_set_value(vscroll, value);
}
}
return TRUE;
}
static gboolean nsgtk_window_keypress_event(GtkWidget *widget,
GdkEventKey *event, gpointer data)
{
struct gui_window *g = data;
uint32_t nskey;
if (gtk_im_context_filter_keypress(g->input_method, event))
return TRUE;
nskey = gtk_gui_gdkkey_to_nskey(event);
if (browser_window_key_press(g->bw, nskey))
return TRUE;
if ((event->state & 0x7) != 0)
return TRUE;
double value;
GtkAdjustment *vscroll = nsgtk_layout_get_vadjustment(g->layout);
GtkAdjustment *hscroll = nsgtk_layout_get_hadjustment(g->layout);
GtkAllocation alloc;
/* @todo consider gtk_widget_get_allocated_width() */
nsgtk_widget_get_allocation(GTK_WIDGET(g->layout), &alloc);
switch (event->keyval) {
case GDK_KEY(Home):
case GDK_KEY(KP_Home):
value = nsgtk_adjustment_get_lower(vscroll);
gtk_adjustment_set_value(vscroll, value);
break;
case GDK_KEY(End):
case GDK_KEY(KP_End):
value = nsgtk_adjustment_get_upper(vscroll) - alloc.height;
if (value < nsgtk_adjustment_get_lower(vscroll))
value = nsgtk_adjustment_get_lower(vscroll);
gtk_adjustment_set_value(vscroll, value);
break;
case GDK_KEY(Left):
case GDK_KEY(KP_Left):
value = gtk_adjustment_get_value(hscroll) -
nsgtk_adjustment_get_step_increment(hscroll);
if (value < nsgtk_adjustment_get_lower(hscroll))
value = nsgtk_adjustment_get_lower(hscroll);
gtk_adjustment_set_value(hscroll, value);
break;
case GDK_KEY(Up):
case GDK_KEY(KP_Up):
value = gtk_adjustment_get_value(vscroll) -
nsgtk_adjustment_get_step_increment(vscroll);
if (value < nsgtk_adjustment_get_lower(vscroll))
value = nsgtk_adjustment_get_lower(vscroll);
gtk_adjustment_set_value(vscroll, value);
break;
case GDK_KEY(Right):
case GDK_KEY(KP_Right):
value = gtk_adjustment_get_value(hscroll) +
nsgtk_adjustment_get_step_increment(hscroll);
if (value > nsgtk_adjustment_get_upper(hscroll) - alloc.width)
value = nsgtk_adjustment_get_upper(hscroll) - alloc.width;
gtk_adjustment_set_value(hscroll, value);
break;
case GDK_KEY(Down):
case GDK_KEY(KP_Down):
value = gtk_adjustment_get_value(vscroll) +
nsgtk_adjustment_get_step_increment(vscroll);
if (value > nsgtk_adjustment_get_upper(vscroll) - alloc.height)
value = nsgtk_adjustment_get_upper(vscroll) - alloc.height;
gtk_adjustment_set_value(vscroll, value);
break;
case GDK_KEY(Page_Up):
case GDK_KEY(KP_Page_Up):
value = gtk_adjustment_get_value(vscroll) -
nsgtk_adjustment_get_page_increment(vscroll);
if (value < nsgtk_adjustment_get_lower(vscroll))
value = nsgtk_adjustment_get_lower(vscroll);
gtk_adjustment_set_value(vscroll, value);
break;
case GDK_KEY(Page_Down):
case GDK_KEY(KP_Page_Down):
value = gtk_adjustment_get_value(vscroll) +
nsgtk_adjustment_get_page_increment(vscroll);
if (value > nsgtk_adjustment_get_upper(vscroll) - alloc.height)
value = nsgtk_adjustment_get_upper(vscroll) - alloc.height;
gtk_adjustment_set_value(vscroll, value);
break;
default:
break;
}
return TRUE;
}
static gboolean nsgtk_window_keyrelease_event(GtkWidget *widget,
GdkEventKey *event, gpointer data)
{
struct gui_window *g = data;
return gtk_im_context_filter_keypress(g->input_method, event);
}
static void nsgtk_window_input_method_commit(GtkIMContext *ctx,
const gchar *str, gpointer data)
{
struct gui_window *g = data;
size_t len = strlen(str), offset = 0;
while (offset < len) {
uint32_t nskey = utf8_to_ucs4(str + offset, len - offset);
browser_window_key_press(g->bw, nskey);
offset = utf8_next(str, len, offset);
}
}
static gboolean nsgtk_window_size_allocate_event(GtkWidget *widget,
GtkAllocation *allocation, gpointer data)
{
struct gui_window *g = data;
browser_window_schedule_reformat(g->bw);
return TRUE;
}
/** when the pane position is changed update the user option
*
* The slightly awkward implementation with the first allocation flag
* is necessary because the initial window creation does not cause an
* allocate-event signal so the position value in the pane is incorrect
* and we cannot know what it should be until after the allocation
* (which did not generate a signal) is done as the user position is a
* percentage of pane total width not an absolute value.
*/
static void
nsgtk_paned_notify__position(GObject *gobject, GParamSpec *pspec, gpointer data)
{
struct gui_window *g = data;
GtkAllocation pane_alloc;
gtk_widget_get_allocation(GTK_WIDGET(g->paned), &pane_alloc);
if (g->paned_sized == false)
{
g->paned_sized = true;
gtk_paned_set_position(g->paned,
(nsoption_int(toolbar_status_size) * pane_alloc.width) / 10000);
return;
}
nsoption_set_int(toolbar_status_size,
((gtk_paned_get_position(g->paned) * 10000) / (pane_alloc.width - 1)));
}
/** Set status bar / scroll bar proportion according to user option
* when pane is resized.
*/
static gboolean nsgtk_paned_size_allocate_event(GtkWidget *widget,
GtkAllocation *allocation, gpointer data)
{
gtk_paned_set_position(GTK_PANED(widget),
(nsoption_int(toolbar_status_size) * allocation->width) / 10000);
return TRUE;
}
/* destroy the browsing context as there is nothing to display it now */
static void window_destroy(GtkWidget *widget, gpointer data)
{
struct gui_window *gw = data;
browser_window_destroy(gw->bw);
g_object_unref(gw->input_method);
}
/**
* Create and open a gtk container (window or tab) for a browsing context.
*
* \param bw The browsing context to create gui_window for.
* \param existing An existing gui_window, may be NULL
* \param flags flags to control the container creation
* \return gui window, or NULL on error
*
* If GW_CREATE_CLONE flag is set existing is non-NULL.
*
* Front end's gui_window must include a reference to the
* browser window passed in the bw param.
*/
static struct gui_window *
gui_window_create(struct browser_window *bw,
struct gui_window *existing,
gui_window_create_flags flags)
{
struct gui_window *g; /* what is being created to return */
bool tempback;
GtkBuilder* tab_builder;
nserror res;
res = nsgtk_builder_new_from_resname("tabcontents", &tab_builder);
if (res != NSERROR_OK) {
LOG("Tab contents UI builder init failed");
return NULL;
}
gtk_builder_connect_signals(tab_builder, NULL);
g = calloc(1, sizeof(*g));
if (!g) {
nsgtk_warning("NoMemory", 0);
g_object_unref(tab_builder);
return NULL;
}
LOG("Creating gui window %p for browser window %p", g, bw);
g->bw = bw;
g->mouse.state = 0;
g->current_pointer = GUI_POINTER_DEFAULT;
/* attach scaffold */
if (flags & GW_CREATE_TAB) {
/* open in new tab, attach to existing scaffold */
if (existing != NULL) {
g->scaffold = existing->scaffold;
} else {
g->scaffold = nsgtk_current_scaffolding();
}
} else {
/* open in new window, create and attach to scaffold */
g->scaffold = nsgtk_new_scaffolding(g);
}
if (g->scaffold == NULL) {
nsgtk_warning("NoMemory", 0);
free(g);
g_object_unref(tab_builder);
return NULL;
}
/* Construct our primary elements */
g->container = GTK_WIDGET(gtk_builder_get_object(tab_builder, "tabContents"));
g->layout = GTK_LAYOUT(gtk_builder_get_object(tab_builder, "layout"));
g->status_bar = GTK_LABEL(gtk_builder_get_object(tab_builder, "status_bar"));
g->paned = GTK_PANED(gtk_builder_get_object(tab_builder, "hpaned1"));
g->input_method = gtk_im_multicontext_new();
/* set a default favicon */
g_object_ref(favicon_pixbuf);
g->icon = favicon_pixbuf;
/* add new gui window to global list (push_top) */
if (window_list) {
window_list->prev = g;
}
g->next = window_list;
g->prev = NULL;
window_list = g;
/* set the events we're interested in receiving from the browser's
* drawing area.
*/
gtk_widget_add_events(GTK_WIDGET(g->layout),
GDK_EXPOSURE_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
GDK_SCROLL_MASK);
nsgtk_widget_set_can_focus(GTK_WIDGET(g->layout), TRUE);
/* set the default background colour of the drawing area to white. */
nsgtk_widget_override_background_color(GTK_WIDGET(g->layout),
GTK_STATE_NORMAL,
0, 0xffff, 0xffff, 0xffff);
g->signalhandler[NSGTK_WINDOW_SIGNAL_REDRAW] =
nsgtk_connect_draw_event(GTK_WIDGET(g->layout),
G_CALLBACK(nsgtk_window_draw_event), g);
/* helper macro to conect signals to callbacks */
#define CONNECT(obj, sig, callback, ptr) \
g_signal_connect(G_OBJECT(obj), (sig), G_CALLBACK(callback), (ptr))
/* layout signals */
CONNECT(g->layout, "motion-notify-event",
nsgtk_window_motion_notify_event, g);
g->signalhandler[NSGTK_WINDOW_SIGNAL_CLICK] =
CONNECT(g->layout, "button-press-event",
nsgtk_window_button_press_event, g);
CONNECT(g->layout, "button-release-event",
nsgtk_window_button_release_event, g);
CONNECT(g->layout, "key-press-event",
nsgtk_window_keypress_event, g);
CONNECT(g->layout, "key-release-event",
nsgtk_window_keyrelease_event, g);
CONNECT(g->layout, "size-allocate",
nsgtk_window_size_allocate_event, g);
CONNECT(g->layout, "scroll-event",
nsgtk_window_scroll_event, g);
/* status pane signals */
CONNECT(g->paned, "size-allocate",
nsgtk_paned_size_allocate_event, g);
CONNECT(g->paned, "notify::position",
nsgtk_paned_notify__position, g);
/* gtk container destructor */
CONNECT(g->container, "destroy", window_destroy, g);
/* input method */
gtk_im_context_set_client_window(g->input_method,
nsgtk_layout_get_bin_window(g->layout));
gtk_im_context_set_use_preedit(g->input_method, FALSE);
/* input method signals */
CONNECT(g->input_method, "commit",
nsgtk_window_input_method_commit, g);
/* add the tab container to the scaffold notebook */
switch (temp_open_background) {
case -1:
tempback = !(nsoption_bool(focus_new));
break;
case 0:
tempback = false;
break;
default:
tempback = true;
break;
}
nsgtk_tab_add(g, g->container, tempback);
/* safe to drop the reference to the tab_builder as the container is
* referenced by the notebook now.
*/
g_object_unref(tab_builder);
return g;
}
void nsgtk_reflow_all_windows(void)
{
for (struct gui_window *g = window_list; g; g = g->next) {
nsgtk_tab_options_changed(nsgtk_scaffolding_notebook(g->scaffold));
browser_window_schedule_reformat(g->bw);
}
}
/**
* callback from core to reformat a window.
*/
static void nsgtk_window_reformat(struct gui_window *gw)
{
GtkAllocation alloc;
if (gw != NULL) {
/** @todo consider gtk_widget_get_allocated_width() */
nsgtk_widget_get_allocation(GTK_WIDGET(gw->layout), &alloc);
browser_window_reformat(gw->bw, false, alloc.width, alloc.height);
}
}
void nsgtk_window_destroy_browser(struct gui_window *gw)
{
/* remove tab */
gtk_widget_destroy(gw->container);
}
static void gui_window_destroy(struct gui_window *g)
{
LOG("gui_window: %p", g);
assert(g != NULL);
assert(g->bw != NULL);
LOG("scaffolding: %p", g->scaffold);
if (g->prev) {
g->prev->next = g->next;
} else {
window_list = g->next;
}
if (g->next) {
g->next->prev = g->prev;
}
LOG("window list head: %p", window_list);
}
/**
* favicon setting for gtk gui window.
*
* \param gw gtk gui window to set favicon on.
* \param icon A handle to the new favicon content.
*/
static void gui_window_set_icon(struct gui_window *gw, struct hlcache_handle *icon)
{
struct bitmap *icon_bitmap = NULL;
/* free any existing icon */
if (gw->icon != NULL) {
g_object_unref(gw->icon);
gw->icon = NULL;
}
if (icon != NULL) {
icon_bitmap = content_get_bitmap(icon);
if (icon_bitmap != NULL) {
LOG("Using %p bitmap", icon_bitmap);
gw->icon = nsgdk_pixbuf_get_from_surface(icon_bitmap->surface, 16, 16);
}
}
if (gw->icon == NULL) {
LOG("Using default favicon");
g_object_ref(favicon_pixbuf);
gw->icon = favicon_pixbuf;
}
nsgtk_scaffolding_set_icon(gw);
}
static bool gui_window_get_scroll(struct gui_window *g, int *sx, int *sy)
{
GtkAdjustment *vadj = nsgtk_layout_get_vadjustment(g->layout);
GtkAdjustment *hadj = nsgtk_layout_get_hadjustment(g->layout);
assert(vadj);
assert(hadj);
*sy = (int)(gtk_adjustment_get_value(vadj));
*sx = (int)(gtk_adjustment_get_value(hadj));
return true;
}
static void nsgtk_redraw_caret(struct gui_window *g)
{
int sx, sy;
if (g->careth == 0)
return;
gui_window_get_scroll(g, &sx, &sy);
gtk_widget_queue_draw_area(GTK_WIDGET(g->layout),
g->caretx - sx, g->carety - sy, 1, g->careth + 1);
}
static void gui_window_remove_caret(struct gui_window *g)
{
int sx, sy;
int oh = g->careth;
if (oh == 0)
return;
g->careth = 0;
gui_window_get_scroll(g, &sx, &sy);
gtk_widget_queue_draw_area(GTK_WIDGET(g->layout),
g->caretx - sx, g->carety - sy, 1, oh + 1);
}
static void gui_window_redraw_window(struct gui_window *g)
{
gtk_widget_queue_draw(GTK_WIDGET(g->layout));
}
static void gui_window_update_box(struct gui_window *g, const struct rect *rect)
{
int sx, sy;
float scale;
if (!browser_window_has_content(g->bw))
return;
gui_window_get_scroll(g, &sx, &sy);
scale = browser_window_get_scale(g->bw);
gtk_widget_queue_draw_area(GTK_WIDGET(g->layout),
rect->x0 * scale - sx,
rect->y0 * scale - sy,
(rect->x1 - rect->x0) * scale,
(rect->y1 - rect->y0) * scale);
}
static void gui_window_set_status(struct gui_window *g, const char *text)
{
assert(g);
assert(g->status_bar);
gtk_label_set_text(g->status_bar, text);
}
static void gui_window_set_scroll(struct gui_window *g, int sx, int sy)
{
GtkAdjustment *vadj = nsgtk_layout_get_vadjustment(g->layout);
GtkAdjustment *hadj = nsgtk_layout_get_hadjustment(g->layout);
gdouble vlower, vpage, vupper, hlower, hpage, hupper, x = (double)sx, y = (double)sy;
assert(vadj);
assert(hadj);
g_object_get(vadj, "page-size", &vpage, "lower", &vlower, "upper", &vupper, NULL);
g_object_get(hadj, "page-size", &hpage, "lower", &hlower, "upper", &hupper, NULL);
if (x < hlower)
x = hlower;
if (x > (hupper - hpage))
x = hupper - hpage;
if (y < vlower)
y = vlower;
if (y > (vupper - vpage))
y = vupper - vpage;
gtk_adjustment_set_value(vadj, y);
gtk_adjustment_set_value(hadj, x);
}
static void gui_window_update_extent(struct gui_window *g)
{
int w, h;
if (browser_window_get_extents(g->bw, true, &w, &h) == NSERROR_OK) {
gtk_layout_set_size(g->layout, w, h);
}
}
static void gui_window_set_pointer(struct gui_window *g,
gui_pointer_shape shape)
{
GdkCursor *cursor = NULL;
GdkCursorType cursortype;
bool nullcursor = false;
if (g->current_pointer == shape)
return;
g->current_pointer = shape;
switch (shape) {
case GUI_POINTER_POINT:
cursortype = GDK_HAND2;
break;
case GUI_POINTER_CARET:
cursortype = GDK_XTERM;
break;
case GUI_POINTER_UP:
cursortype = GDK_TOP_SIDE;
break;
case GUI_POINTER_DOWN:
cursortype = GDK_BOTTOM_SIDE;
break;
case GUI_POINTER_LEFT:
cursortype = GDK_LEFT_SIDE;
break;
case GUI_POINTER_RIGHT:
cursortype = GDK_RIGHT_SIDE;
break;
case GUI_POINTER_LD:
cursortype = GDK_BOTTOM_LEFT_CORNER;
break;
case GUI_POINTER_RD:
cursortype = GDK_BOTTOM_RIGHT_CORNER;
break;
case GUI_POINTER_LU:
cursortype = GDK_TOP_LEFT_CORNER;
break;
case GUI_POINTER_RU:
cursortype = GDK_TOP_RIGHT_CORNER;
break;
case GUI_POINTER_CROSS:
cursortype = GDK_CROSS;
break;
case GUI_POINTER_MOVE:
cursortype = GDK_FLEUR;
break;
case GUI_POINTER_WAIT:
cursortype = GDK_WATCH;
break;
case GUI_POINTER_HELP:
cursortype = GDK_QUESTION_ARROW;
break;
case GUI_POINTER_MENU:
cursor = nsgtk_create_menu_cursor();
nullcursor = true;
break;
case GUI_POINTER_PROGRESS:
/* In reality, this needs to be the funky left_ptr_watch
* which we can't do easily yet.
*/
cursortype = GDK_WATCH;
break;
/* The following we're not sure about */
case GUI_POINTER_NO_DROP:
case GUI_POINTER_NOT_ALLOWED:
case GUI_POINTER_DEFAULT:
default:
nullcursor = true;
}
if (!nullcursor)
cursor = gdk_cursor_new_for_display(
gtk_widget_get_display(
GTK_WIDGET(g->layout)),
cursortype);
gdk_window_set_cursor(nsgtk_widget_get_window(GTK_WIDGET(g->layout)),
cursor);
if (!nullcursor)
nsgdk_cursor_unref(cursor);
}
static void gui_window_place_caret(struct gui_window *g, int x, int y, int height,
const struct rect *clip)
{
nsgtk_redraw_caret(g);
y += 1;
height -= 1;
if (y < clip->y0) {
height -= clip->y0 - y;
y = clip->y0;
}
if (y + height > clip->y1) {
height = clip->y1 - y + 1;
}
g->caretx = x;
g->carety = y;
g->careth = height;
nsgtk_redraw_caret(g);
gtk_widget_grab_focus(GTK_WIDGET(g->layout));
}
static void gui_window_get_dimensions(struct gui_window *g, int *width, int *height,
bool scaled)
{
GtkAllocation alloc;
/* @todo consider gtk_widget_get_allocated_width() */
nsgtk_widget_get_allocation(GTK_WIDGET(g->layout), &alloc);
*width = alloc.width;
*height = alloc.height;
if (scaled) {
float scale = browser_window_get_scale(g->bw);
*width /= scale;
*height /= scale;
}
LOG("width: %i", *width);
LOG("height: %i", *height);
}
static void gui_window_start_selection(struct gui_window *g)
{
gtk_widget_grab_focus(GTK_WIDGET(g->layout));
}
static void gui_window_create_form_select_menu(struct gui_window *g,
struct form_control *control)
{
intptr_t item;
struct form_option *option;
GtkWidget *menu_item;
/* control->data.select.multiple is true if multiple selections
* are allowable. We ignore this, as the core handles it for us.
* Yay. \o/
*/
if (select_menu != NULL) {
gtk_widget_destroy(select_menu);
}
select_menu = gtk_menu_new();
select_menu_control = control;
item = 0;
option = form_select_get_option(control, item);
while (option != NULL) {
LOG("Item %"PRIdPTR" option %p text %s",
item, option, option->text);
menu_item = gtk_check_menu_item_new_with_label(option->text);
if (option->selected) {
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(menu_item), TRUE);
}
/*
* This casts the item index integer into an integer
* the size of a pointer. This allows the callback
* parameter to be passed avoiding allocating memory
* for a context with a single integer in it.
*/
g_signal_connect(menu_item, "toggled",
G_CALLBACK(nsgtk_select_menu_clicked), (gpointer)item);
gtk_menu_shell_append(GTK_MENU_SHELL(select_menu), menu_item);
item++;
option = form_select_get_option(control, item);
}
gtk_widget_show_all(select_menu);
gtk_menu_popup(GTK_MENU(select_menu), NULL, NULL, NULL,
NULL /* data */, 0, gtk_get_current_event_time());
}
static void
gui_window_file_gadget_open(struct gui_window *g,
struct hlcache_handle *hl,
struct form_control *gadget)
{
GtkWidget *dialog;
dialog = gtk_file_chooser_dialog_new("Select File",
nsgtk_scaffolding_window(g->scaffold),
GTK_FILE_CHOOSER_ACTION_OPEN,
NSGTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NSGTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
NULL);
LOG("*** open dialog: %p", dialog);
int ret = gtk_dialog_run(GTK_DIALOG(dialog));
LOG("*** return value: %d", ret);
if (ret == GTK_RESPONSE_ACCEPT) {
char *filename;
filename = gtk_file_chooser_get_filename(
GTK_FILE_CHOOSER(dialog));
browser_window_set_gadget_filename(g->bw, gadget, filename);
g_free(filename);
}
gtk_widget_destroy(dialog);
}
static struct gui_window_table window_table = {
.create = gui_window_create,
.destroy = gui_window_destroy,
.redraw = gui_window_redraw_window,
.update = gui_window_update_box,
.get_scroll = gui_window_get_scroll,
.set_scroll = gui_window_set_scroll,
.get_dimensions = gui_window_get_dimensions,
.update_extent = gui_window_update_extent,
.reformat = nsgtk_window_reformat,
.set_icon = gui_window_set_icon,
.set_status = gui_window_set_status,
.set_pointer = gui_window_set_pointer,
.place_caret = gui_window_place_caret,
.remove_caret = gui_window_remove_caret,
.create_form_select_menu = gui_window_create_form_select_menu,
.file_gadget_open = gui_window_file_gadget_open,
.start_selection = gui_window_start_selection,
/* from scaffold */
.set_title = nsgtk_window_set_title,
.set_url = gui_window_set_url,
.start_throbber = gui_window_start_throbber,
.stop_throbber = gui_window_stop_throbber,
};
struct gui_window_table *nsgtk_window_table = &window_table;
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