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netsurf/gtk/window.c
Vincent Sanders 55260cc9a0 Ensure gtk windows have a default favicon at creation. 
This ensures newly created gtk gui windows have a default favicon
set. This is necessary because new tab creation displays the new
windows contents before an icon has been set and the icon will not be
changed from the previously viewed tabs icon.
2015-06-30 12:09:45 +01:00

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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 <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 "content/hlcache.h"
#include "gtk/window.h"
#include "gtk/selection.h"
#include "desktop/browser.h"
#include "desktop/mouse.h"
#include "desktop/searchweb.h"
#include "desktop/textinput.h"
#include "desktop/gui_window.h"
#include "desktop/plotters.h"
#include "render/form.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) {
warn_user("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) {
warn_user("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, 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,
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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