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wails/v2/internal/ffenestri/ffenestri_linux.c
2021-09-15 20:30:14 +10:00

996 lines
30 KiB
C

#ifndef __FFENESTRI_LINUX_H__
#define __FFENESTRI_LINUX_H__
#include "common.h"
#include "gtk/gtk.h"
#include "webkit2/webkit2.h"
#include <time.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
// References to assets
extern const unsigned char runtime;
#include "icon.h"
#include "assets.h"
// Constants
#define PRIMARY_MOUSE_BUTTON 1
#define MIDDLE_MOUSE_BUTTON 2
#define SECONDARY_MOUSE_BUTTON 3
// MAIN DEBUG FLAG
int debug;
// Debug works like sprintf but mutes if the global debug flag is true
// Credit: https://stackoverflow.com/a/20639708
void Debug(char *message, ...)
{
if (debug)
{
char *temp = concat("TRACE | Ffenestri (C) | ", message);
message = concat(temp, "\n");
free(temp);
va_list args;
va_start(args, message);
vprintf(message, args);
free(message);
va_end(args);
}
}
extern void messageFromWindowCallback(const char *);
typedef void (*ffenestriCallback)(const char *);
struct Application
{
// Gtk Data
GtkApplication *application;
GtkWindow *mainWindow;
GtkWidget *webView;
int signalInvoke;
int signalWindowDrag;
int signalButtonPressed;
int signalButtonReleased;
int signalLoadChanged;
// Saves the events for the drag mouse button
GdkEventButton *dragButtonEvent;
// The number of the default drag button
int dragButton;
// Window Data
const char *title;
char *id;
int width;
int height;
int resizable;
int devtools;
int startHidden;
int fullscreen;
int minWidth;
int minHeight;
int maxWidth;
int maxHeight;
int frame;
// User Data
char *HTML;
// Callback
ffenestriCallback sendMessageToBackend;
// Bindings
const char *bindings;
// Lock - used for sync operations (Should we be using g_mutex?)
int lock;
};
void *NewApplication(const char *title, int width, int height, int resizable, int devtools, int fullscreen, int startHidden)
{
// Setup main application struct
struct Application *result = malloc(sizeof(struct Application));
result->title = title;
result->width = width;
result->height = height;
result->resizable = resizable;
result->devtools = devtools;
result->fullscreen = fullscreen;
result->minWidth = 0;
result->minHeight = 0;
result->maxWidth = 0;
result->maxHeight = 0;
result->frame = 1;
result->startHidden = startHidden;
// Default drag button is PRIMARY
result->dragButton = PRIMARY_MOUSE_BUTTON;
result->sendMessageToBackend = (ffenestriCallback)messageFromWindowCallback;
// Create a unique ID based on the current unix timestamp
char temp[11];
sprintf(&temp[0], "%d", (int)time(NULL));
result->id = concat("wails.app", &temp[0]);
// Create the main GTK application
GApplicationFlags flags = G_APPLICATION_FLAGS_NONE;
result->application = gtk_application_new(result->id, flags);
// Return the application struct
return (void *)result;
}
void DestroyApplication(struct Application *app)
{
Debug("Destroying Application");
g_application_quit(G_APPLICATION(app->application));
// Release the GTK ID string
if (app->id != NULL)
{
free(app->id);
app->id = NULL;
}
else
{
Debug("Almost a double free for app->id");
}
// Free the bindings
if (app->bindings != NULL)
{
free((void *)app->bindings);
app->bindings = NULL;
}
else
{
Debug("Almost a double free for app->bindings");
}
// Disconnect signal handlers
WebKitUserContentManager *manager = webkit_web_view_get_user_content_manager((WebKitWebView *)app->webView);
g_signal_handler_disconnect(manager, app->signalInvoke);
if( app->frame == 0) {
g_signal_handler_disconnect(manager, app->signalWindowDrag);
g_signal_handler_disconnect(app->webView, app->signalButtonPressed);
g_signal_handler_disconnect(app->webView, app->signalButtonReleased);
}
g_signal_handler_disconnect(app->webView, app->signalLoadChanged);
// Release the main GTK Application
if (app->application != NULL)
{
g_object_unref(app->application);
app->application = NULL;
}
else
{
Debug("Almost a double free for app->application");
}
Debug("Finished Destroying Application");
}
// Quit will stop the gtk application and free up all the memory
// used by the application
void Quit(struct Application *app)
{
Debug("Quit Called");
gtk_window_close((GtkWindow *)app->mainWindow);
g_application_quit((GApplication *)app->application);
DestroyApplication(app);
}
// SetTitle sets the main window title to the given string
void SetTitle(struct Application *app, const char *title)
{
gtk_window_set_title(app->mainWindow, title);
}
// Fullscreen sets the main window to be fullscreen
void Fullscreen(struct Application *app)
{
gtk_window_fullscreen(app->mainWindow);
}
// UnFullscreen resets the main window after a fullscreen
void UnFullscreen(struct Application *app)
{
gtk_window_unfullscreen(app->mainWindow);
}
void setMinMaxSize(struct Application *app)
{
GdkGeometry size;
size.min_width = size.min_height = size.max_width = size.max_height = 0;
int flags = 0;
if (app->maxHeight > 0 && app->maxWidth > 0)
{
size.max_height = app->maxHeight;
size.max_width = app->maxWidth;
flags |= GDK_HINT_MAX_SIZE;
}
if (app->minHeight > 0 && app->minWidth > 0)
{
size.min_height = app->minHeight;
size.min_width = app->minWidth;
flags |= GDK_HINT_MIN_SIZE;
}
gtk_window_set_geometry_hints(app->mainWindow, NULL, &size, flags);
}
char *fileDialogInternal(struct Application *app, GtkFileChooserAction chooserAction, char **args) {
GtkFileChooserNative *native;
GtkFileChooserAction action = chooserAction;
gint res;
char *filename;
char *title = args[0];
char *filter = args[1];
native = gtk_file_chooser_native_new(title,
app->mainWindow,
action,
"_Open",
"_Cancel");
GtkFileChooser *chooser = GTK_FILE_CHOOSER(native);
// If we have filters, process them
if (filter[0] != '\0') {
GtkFileFilter *file_filter = gtk_file_filter_new();
gchar **filters = g_strsplit(filter, ",", -1);
gint i;
for(i = 0; filters && filters[i]; i++) {
gtk_file_filter_add_pattern(file_filter, filters[i]);
// Debug("Adding filter pattern: %s\n", filters[i]);
}
gtk_file_filter_set_name(file_filter, filter);
gtk_file_chooser_add_filter(chooser, file_filter);
g_strfreev(filters);
}
res = gtk_native_dialog_run(GTK_NATIVE_DIALOG(native));
if (res == GTK_RESPONSE_ACCEPT)
{
filename = gtk_file_chooser_get_filename(chooser);
}
g_object_unref(native);
return filename;
}
// openFileDialogInternal opens a dialog to select a file
// NOTE: The result is a string that will need to be freed!
char *openFileDialogInternal(struct Application *app, char **args)
{
return fileDialogInternal(app, GTK_FILE_CHOOSER_ACTION_OPEN, args);
}
// saveFileDialogInternal opens a dialog to select a file
// NOTE: The result is a string that will need to be freed!
char *saveFileDialogInternal(struct Application *app, char **args)
{
return fileDialogInternal(app, GTK_FILE_CHOOSER_ACTION_SAVE, args);
}
// openDirectoryDialogInternal opens a dialog to select a directory
// NOTE: The result is a string that will need to be freed!
char *openDirectoryDialogInternal(struct Application *app, char **args)
{
return fileDialogInternal(app, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, args);
}
void SetMinWindowSize(struct Application *app, int minWidth, int minHeight)
{
app->minWidth = minWidth;
app->minHeight = minHeight;
}
void SetMaxWindowSize(struct Application *app, int maxWidth, int maxHeight)
{
app->maxWidth = maxWidth;
app->maxHeight = maxHeight;
}
// SetColour sets the colour of the webview to the given colour string
void SetColour(struct Application *app, int red, int green, int blue, int alpha)
{
// GdkRGBA rgba;
// rgba.
// gboolean result = gdk_rgba_parse(&rgba, colourString);
// if (result == FALSE)
// {
// return 0;
// }
// // Debug("Setting webview colour to: %s", colourString);
// webkit_web_view_get_background_color((WebKitWebView *)(app->webView), &rgba);
}
// DisableFrame disables the window frame
void DisableFrame(struct Application *app)
{
app->frame = 0;
}
void syncCallback(GObject *source_object,
GAsyncResult *res,
void *data)
{
struct Application *app = (struct Application *)data;
app->lock = 0;
}
void syncEval(struct Application *app, const gchar *script)
{
WebKitWebView *webView = (WebKitWebView *)(app->webView);
// wait for lock to free
while (app->lock == 1)
{
g_main_context_iteration(0, true);
}
// Set lock
app->lock = 1;
webkit_web_view_run_javascript(
webView,
script,
NULL, syncCallback, (void*)app);
while (app->lock == 1)
{
g_main_context_iteration(0, true);
}
}
void asyncEval(WebKitWebView *webView, const gchar *script)
{
webkit_web_view_run_javascript(
webView,
script,
NULL, NULL, NULL);
}
typedef void (*dispatchMethod)(struct Application *app, void *);
struct dispatchData
{
struct Application *app;
dispatchMethod method;
void *args;
};
gboolean executeMethod(gpointer data)
{
struct dispatchData *d = (struct dispatchData *)data;
(d->method)(d->app, d->args);
g_free(d);
return FALSE;
}
void ExecJS(struct Application *app, char *js)
{
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)syncEval;
data->args = js;
data->app = app;
gdk_threads_add_idle(executeMethod, data);
}
typedef char *(*dialogMethod)(struct Application *app, void *);
struct dialogCall
{
struct Application *app;
dialogMethod method;
void *args;
void *filter;
char *result;
int done;
};
gboolean executeMethodWithReturn(gpointer data)
{
struct dialogCall *d = (struct dialogCall *)data;
d->result = (d->method)(d->app, d->args);
d->done = 1;
return FALSE;
}
char *OpenFileDialog(struct Application *app, char *title, char *filter)
{
struct dialogCall *data = (struct dialogCall *)g_new(struct dialogCall, 1);
data->result = NULL;
data->done = 0;
data->method = (dialogMethod)openFileDialogInternal;
const char* dialogArgs[]={ title, filter };
data->args = dialogArgs;
data->app = app;
gdk_threads_add_idle(executeMethodWithReturn, data);
while (data->done == 0)
{
usleep(100000);
}
g_free(data);
return data->result;
}
char *SaveFileDialog(struct Application *app, char *title, char *filter)
{
struct dialogCall *data = (struct dialogCall *)g_new(struct dialogCall, 1);
data->result = NULL;
data->done = 0;
data->method = (dialogMethod)saveFileDialogInternal;
const char* dialogArgs[]={ title, filter };
data->args = dialogArgs;
data->app = app;
gdk_threads_add_idle(executeMethodWithReturn, data);
while (data->done == 0)
{
usleep(100000);
}
Debug("Dialog done");
Debug("Result = %s\n", data->result);
g_free(data);
// Fingers crossed this wasn't freed by g_free above
return data->result;
}
char *OpenDirectoryDialog(struct Application *app, char *title, char *filter)
{
struct dialogCall *data = (struct dialogCall *)g_new(struct dialogCall, 1);
data->result = NULL;
data->done = 0;
data->method = (dialogMethod)openDirectoryDialogInternal;
const char* dialogArgs[]={ title, filter };
data->args = dialogArgs;
data->app = app;
gdk_threads_add_idle(executeMethodWithReturn, data);
while (data->done == 0)
{
usleep(100000);
}
Debug("Directory Dialog done");
Debug("Result = %s\n", data->result);
g_free(data);
// Fingers crossed this wasn't freed by g_free above
return data->result;
}
// Sets the icon to the XPM stored in icon
void setIcon(struct Application *app)
{
GdkPixbuf *appIcon = gdk_pixbuf_new_from_xpm_data((const char **)icon);
gtk_window_set_icon(app->mainWindow, appIcon);
}
static void load_finished_cb(WebKitWebView *webView,
WebKitLoadEvent load_event,
struct Application *app)
{
switch (load_event)
{
// case WEBKIT_LOAD_STARTED:
// /* New load, we have now a provisional URI */
// // printf("Start downloading %s\n", webkit_web_view_get_uri(web_view));
// /* Here we could start a spinner or update the
// * location bar with the provisional URI */
// break;
// case WEBKIT_LOAD_REDIRECTED:
// // printf("Redirected to: %s\n", webkit_web_view_get_uri(web_view));
// break;
// case WEBKIT_LOAD_COMMITTED:
// /* The load is being performed. Current URI is
// * the final one and it won't change unless a new
// * load is requested or a navigation within the
// * same page is performed */
// // printf("Loading: %s\n", webkit_web_view_get_uri(web_view));
// break;
case WEBKIT_LOAD_FINISHED:
/* Load finished, we can now stop the spinner */
// printf("Finished loading: %s\n", webkit_web_view_get_uri(web_view));
// Bindings
Debug("Binding Methods");
syncEval(app, app->bindings);
// Setup IPC commands
Debug("Setting up IPC methods");
const char *invoke = "window.wailsInvoke=function(message){window.webkit.messageHandlers.external.postMessage(message);};window.wailsDrag=function(message){window.webkit.messageHandlers.windowDrag.postMessage(message);};window.wailsContextMenuMessage=function(message){window.webkit.messageHandlers.contextMenu.postMessage(message);};";
syncEval(app, invoke);
// Runtime
Debug("Setting up Wails runtime");
syncEval(app, &runtime);
// Loop over assets
int index = 1;
while (1)
{
// Get next asset pointer
const char *asset = assets[index];
// If we have no more assets, break
if (asset == 0x00)
{
break;
}
// sync eval the asset
syncEval(app, asset);
index++;
};
// Set the icon
setIcon(app);
// Setup fullscreen
if (app->fullscreen)
{
Debug("Going fullscreen");
Fullscreen(app);
}
// Setup resize
gtk_window_resize(GTK_WINDOW(app->mainWindow), app->width, app->height);
if (app->resizable)
{
gtk_window_set_default_size(GTK_WINDOW(app->mainWindow), app->width, app->height);
}
else
{
gtk_widget_set_size_request(GTK_WIDGET(app->mainWindow), app->width, app->height);
gtk_window_resize(GTK_WINDOW(app->mainWindow), app->width, app->height);
// Fix the min/max to the window size for good measure
app->minHeight = app->maxHeight = app->height;
app->minWidth = app->maxWidth = app->width;
}
gtk_window_set_resizable(GTK_WINDOW(app->mainWindow), app->resizable ? TRUE : FALSE);
setMinMaxSize(app);
// Centre by default
gtk_window_set_position(app->mainWindow, GTK_WIN_POS_CENTER);
// Show window and focus
if( app->startHidden == 0) {
gtk_widget_show_all(GTK_WIDGET(app->mainWindow));
gtk_widget_grab_focus(app->webView);
}
break;
}
}
static gboolean disable_context_menu_cb(
WebKitWebView *web_view,
WebKitContextMenu *context_menu,
GdkEvent *event,
WebKitHitTestResult *hit_test_result,
gpointer user_data)
{
return TRUE;
}
static void printEvent(const char *message, GdkEventButton *event)
{
Debug("%s: [button:%d] [x:%f] [y:%f] [time:%d]",
message,
event->button,
event->x_root,
event->y_root,
event->time);
}
static void dragWindow(WebKitUserContentManager *contentManager,
WebKitJavascriptResult *result,
struct Application *app)
{
// If we get this message erroneously, ignore
if (app->dragButtonEvent == NULL)
{
return;
}
// Ignore non-toplevel widgets
GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(app->webView));
if (!GTK_IS_WINDOW(window))
{
return;
}
// Initiate the drag
printEvent("Starting drag with event", app->dragButtonEvent);
gtk_window_begin_move_drag(app->mainWindow,
app->dragButton,
app->dragButtonEvent->x_root,
app->dragButtonEvent->y_root,
app->dragButtonEvent->time);
// Clear the event
app->dragButtonEvent = NULL;
return;
}
gboolean buttonPress(GtkWidget *widget, GdkEventButton *event, struct Application *app)
{
if (event->type == GDK_BUTTON_PRESS && event->button == app->dragButton)
{
app->dragButtonEvent = event;
}
return FALSE;
}
gboolean buttonRelease(GtkWidget *widget, GdkEventButton *event, struct Application *app)
{
if (event->type == GDK_BUTTON_RELEASE && event->button == app->dragButton)
{
app->dragButtonEvent = NULL;
}
return FALSE;
}
static void sendMessageToBackend(WebKitUserContentManager *contentManager,
WebKitJavascriptResult *result,
struct Application *app)
{
#if WEBKIT_MAJOR_VERSION >= 2 && WEBKIT_MINOR_VERSION >= 22
JSCValue *value = webkit_javascript_result_get_js_value(result);
char *message = jsc_value_to_string(value);
#else
JSGlobalContextRef context = webkit_javascript_result_get_global_context(result);
JSValueRef value = webkit_javascript_result_get_value(result);
JSStringRef js = JSValueToStringCopy(context, value, NULL);
size_t messageSize = JSStringGetMaximumUTF8CStringSize(js);
char *message = g_new(char, messageSize);
JSStringGetUTF8CString(js, message, messageSize);
JSStringRelease(js);
#endif
app->sendMessageToBackend(message);
g_free(message);
}
void SetDebug(struct Application *app, int flag)
{
debug = flag;
}
// getCurrentMonitorGeometry gets the geometry of the monitor
// that the window is mostly on.
GdkRectangle getCurrentMonitorGeometry(GtkWindow *window) {
// Get the monitor that the window is currently on
GdkDisplay *display = gtk_widget_get_display(GTK_WIDGET(window));
GdkWindow *gdk_window = gtk_widget_get_window(GTK_WIDGET(window));
GdkMonitor *monitor = gdk_display_get_monitor_at_window (display, gdk_window);
// Get the geometry of the monitor
GdkRectangle result;
gdk_monitor_get_geometry (monitor,&result);
return result;
}
/*******************
* Window Position *
*******************/
// Position holds an x/y corrdinate
struct Position {
int x;
int y;
};
// Internal call for setting the position of the window.
void setPositionInternal(struct Application *app, struct Position *pos) {
// Get the monitor geometry
GdkRectangle m = getCurrentMonitorGeometry(app->mainWindow);
// Move the window relative to the monitor
gtk_window_move(app->mainWindow, m.x + pos->x, m.y + pos->y);
// Free memory
free(pos);
}
// SetPosition sets the position of the window to the given x/y
// coordinates. The x/y values are relative to the monitor
// the window is mostly on.
void SetPosition(struct Application *app, int x, int y) {
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)setPositionInternal;
struct Position *pos = malloc(sizeof(struct Position));
pos->x = x;
pos->y = y;
data->args = pos;
data->app = app;
gdk_threads_add_idle(executeMethod, data);
}
/***************
* Window Size *
***************/
// Size holds a width/height
struct Size {
int width;
int height;
};
// Internal call for setting the size of the window.
void setSizeInternal(struct Application *app, struct Size *size) {
gtk_window_resize(app->mainWindow, size->width, size->height);
free(size);
}
// SetSize sets the size of the window to the given width/height
void SetSize(struct Application *app, int width, int height) {
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)setSizeInternal;
struct Size *size = malloc(sizeof(struct Size));
size->width = width;
size->height = height;
data->args = size;
data->app = app;
gdk_threads_add_idle(executeMethod, data);
}
// centerInternal will center the main window on the monitor it is mostly in
void centerInternal(struct Application *app)
{
// Get the geometry of the monitor
GdkRectangle m = getCurrentMonitorGeometry(app->mainWindow);
// Get the window width/height
int windowWidth, windowHeight;
gtk_window_get_size(app->mainWindow, &windowWidth, &windowHeight);
// Place the window at the center of the monitor
gtk_window_move(app->mainWindow, ((m.width - windowWidth) / 2) + m.x, ((m.height - windowHeight) / 2) + m.y);
}
// Center the window
void Center(struct Application *app) {
// Setup a call to centerInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)centerInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
// hideInternal hides the main window
void hideInternal(struct Application *app) {
gtk_widget_hide (GTK_WIDGET(app->mainWindow));
}
// Hide places the hideInternal method onto the main thread for execution
void Hide(struct Application *app) {
// Setup a call to hideInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)hideInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
// showInternal shows the main window
void showInternal(struct Application *app) {
gtk_widget_show_all(GTK_WIDGET(app->mainWindow));
gtk_widget_grab_focus(app->webView);
}
// Show places the showInternal method onto the main thread for execution
void Show(struct Application *app) {
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)showInternal;
data->app = app;
gdk_threads_add_idle(executeMethod, data);
}
// maximiseInternal maximises the main window
void maximiseInternal(struct Application *app) {
gtk_window_maximize(GTK_WINDOW(app->mainWindow));
}
// Maximise places the maximiseInternal method onto the main thread for execution
void Maximise(struct Application *app) {
// Setup a call to maximiseInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)maximiseInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
// unmaximiseInternal unmaximises the main window
void unmaximiseInternal(struct Application *app) {
gtk_window_unmaximize(GTK_WINDOW(app->mainWindow));
}
// Unmaximise places the unmaximiseInternal method onto the main thread for execution
void Unmaximise(struct Application *app) {
// Setup a call to unmaximiseInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)unmaximiseInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
void DarkModeEnabled(struct Application* app, char *callbackID) {}
void SetApplicationMenu(struct Application* app, const char *menuJSON) {}
void AddTrayMenu(struct Application* app, const char *menuTrayJSON) {}
void SetTrayMenu(struct Application* app, const char *menuTrayJSON) {}
void DeleteTrayMenuByID(struct Application* app, const char *id) {}
void UpdateTrayMenuLabel(struct Application* app, const char* JSON) {}
void AddContextMenu(struct Application* app, char *contextMenuJSON) {}
void UpdateContextMenu(struct Application* app, char *contextMenuJSON) {}
void WebviewIsTransparent(struct Application* app) {}
void WindowIsTranslucent(struct Application* app) {}
void OpenDialog(struct Application* app, char *callbackID, char *title, char *filters, char *defaultFilename, char *defaultDir, int allowFiles, int allowDirs, int allowMultiple, int showHiddenFiles, int canCreateDirectories, int resolvesAliases, int treatPackagesAsDirectories) {}
void SaveDialog(struct Application* app, char *callbackID, char *title, char *filters, char *defaultFilename, char *defaultDir, int showHiddenFiles, int canCreateDirectories, int treatPackagesAsDirectories) {}
void MessageDialog(struct Application* app, char *callbackID, char *type, char *title, char *message, char *icon, char *button1, char *button2, char *button3, char *button4, char *defaultButton, char *cancelButton) {}
// minimiseInternal minimises the main window
void minimiseInternal(struct Application *app) {
gtk_window_iconify(app->mainWindow);
}
// Minimise places the minimiseInternal method onto the main thread for execution
void Minimise(struct Application *app) {
// Setup a call to minimiseInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)minimiseInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
// unminimiseInternal unminimises the main window
void unminimiseInternal(struct Application *app) {
gtk_window_present(app->mainWindow);
}
// Unminimise places the unminimiseInternal method onto the main thread for execution
void Unminimise(struct Application *app) {
// Setup a call to unminimiseInternal on the main thread
struct dispatchData *data = (struct dispatchData *)g_new(struct dispatchData, 1);
data->method = (dispatchMethod)unminimiseInternal;
data->app = app;
// Add call to main thread
gdk_threads_add_idle(executeMethod, data);
}
void SetBindings(struct Application *app, const char *bindings)
{
const char *temp = concat("window.wailsbindings = \"", bindings);
const char *jscall = concat(temp, "\";");
free((void *)temp);
app->bindings = jscall;
}
// This is called when the close button on the window is pressed
gboolean close_button_pressed(GtkWidget *widget,
GdkEvent *event,
struct Application *app)
{
app->sendMessageToBackend("WC"); // Window Close
return TRUE;
}
static void setupWindow(struct Application *app)
{
// Create the window
GtkWidget *mainWindow = gtk_application_window_new(app->application);
// Save reference
app->mainWindow = GTK_WINDOW(mainWindow);
// Setup frame
gtk_window_set_decorated((GtkWindow *)mainWindow, app->frame);
// Setup title
gtk_window_set_title(GTK_WINDOW(mainWindow), app->title);
// Setup script handler
WebKitUserContentManager *contentManager = webkit_user_content_manager_new();
// Setup the invoke handler
webkit_user_content_manager_register_script_message_handler(contentManager, "external");
app->signalInvoke = g_signal_connect(contentManager, "script-message-received::external", G_CALLBACK(sendMessageToBackend), app);
// Setup the window drag handler if this is a frameless app
if ( app->frame == 0 ) {
webkit_user_content_manager_register_script_message_handler(contentManager, "windowDrag");
app->signalWindowDrag = g_signal_connect(contentManager, "script-message-received::windowDrag", G_CALLBACK(dragWindow), app);
// Setup the mouse handlers
app->signalButtonPressed = g_signal_connect(app->webView, "button-press-event", G_CALLBACK(buttonPress), app);
app->signalButtonReleased = g_signal_connect(app->webView, "button-release-event", G_CALLBACK(buttonRelease), app);
}
GtkWidget *webView = webkit_web_view_new_with_user_content_manager(contentManager);
// Save reference
app->webView = webView;
// Add the webview to the window
gtk_container_add(GTK_CONTAINER(mainWindow), webView);
// Load default HTML
app->signalLoadChanged = g_signal_connect(G_OBJECT(webView), "load-changed", G_CALLBACK(load_finished_cb), app);
// Load the user's HTML
// assets[0] is the HTML because the asset array is bundled like that by convention
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webView), assets[0]);
// Check if we want to enable the dev tools
if (app->devtools)
{
WebKitSettings *settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(webView));
// webkit_settings_set_enable_write_console_messages_to_stdout(settings, true);
webkit_settings_set_enable_developer_extras(settings, true);
}
else
{
g_signal_connect(G_OBJECT(webView), "context-menu", G_CALLBACK(disable_context_menu_cb), app);
}
// Listen for close button signal
g_signal_connect(GTK_WIDGET(mainWindow), "delete-event", G_CALLBACK(close_button_pressed), app);
}
static void activate(GtkApplication* _, struct Application *app)
{
setupWindow(app);
}
void Run(struct Application *app, int argc, char **argv)
{
g_signal_connect(app->application, "activate", G_CALLBACK(activate), app);
g_application_run(G_APPLICATION(app->application), argc, argv);
}
#endif