pidgin/gtkwebview.c@716af5e03402
pidgin/gtkwebview.c
Sun, 12 Aug 2012 23:23:51 -0400
- author
- Elliott Sales de Andrade <qulogic@pidgin.im>
- date
- Sun, 12 Aug 2012 23:23:51 -0400
- changeset 33253
- 716af5e03402
- parent 33250
- 84e141f1bfed
- child 33254
- 88b2504d0acf
- permissions
- -rw-r--r--
Tweak autoscrolling limits to get filtered debug window to work.
I'm still not sure how the scroll limits seem to change only when adding
something that's going to be visible.
/* * @file gtkwebview.c GTK+ WebKitWebView wrapper class. * @ingroup pidgin */ /* pidgin * * Pidgin is the legal property of its developers, whose names are too numerous * to list here. Please refer to the COPYRIGHT file distributed with this * source distribution. * * This program 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; either version 2 of the License, or * (at your option) any later version. * * This program 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA * */ #include "internal.h" #include "debug.h" #include "pidgin.h" #include <gdk/gdkkeysyms.h> #include "gtkutils.h" #include "gtkwebview.h" #include "gtk3compat.h" #define MAX_FONT_SIZE 7 #define MAX_SCROLL_TIME 0.4 /* seconds */ #define SCROLL_DELAY 33 /* milliseconds */ #define GTK_WEBVIEW_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE((obj), GTK_TYPE_WEBVIEW, GtkWebViewPriv)) enum { LOAD_HTML, LOAD_JS }; enum { BUTTONS_UPDATE, TOGGLE_FORMAT, CLEAR_FORMAT, UPDATE_FORMAT, CHANGED, HTML_APPENDED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0 }; /****************************************************************************** * Structs *****************************************************************************/ typedef struct { WebKitWebInspector *inspector; WebKitDOMNode *node; } GtkWebViewInspectData; typedef struct { char *name; int length; gboolean (*activate)(GtkWebView *webview, const char *uri); gboolean (*context_menu)(GtkWebView *webview, WebKitDOMHTMLAnchorElement *link, GtkWidget *menu); } GtkWebViewProtocol; typedef struct _GtkWebViewPriv { /* Processing queues */ gboolean is_loading; GQueue *load_queue; guint loader; /* Scroll adjustments */ GtkAdjustment *vadj; gboolean autoscroll; guint scroll_src; GTimer *scroll_time; /* Format options */ GtkWebViewButtons format_functions; struct { gboolean wbfo:1; /* Whole buffer formatting only. */ gboolean block_changed:1; } edit; } GtkWebViewPriv; /****************************************************************************** * Globals *****************************************************************************/ static WebKitWebViewClass *parent_class = NULL; /****************************************************************************** * Helpers *****************************************************************************/ static void webview_resource_loading(WebKitWebView *webview, WebKitWebFrame *frame, WebKitWebResource *resource, WebKitNetworkRequest *request, WebKitNetworkResponse *response, gpointer user_data) { const gchar *uri; uri = webkit_network_request_get_uri(request); if (purple_str_has_prefix(uri, PURPLE_STORED_IMAGE_PROTOCOL)) { int id; PurpleStoredImage *img; const char *filename; uri += sizeof(PURPLE_STORED_IMAGE_PROTOCOL) - 1; id = strtoul(uri, NULL, 10); img = purple_imgstore_find_by_id(id); if (!img) return; filename = purple_imgstore_get_filename(img); if (filename && g_path_is_absolute(filename)) { char *tmp = g_strdup_printf("file://%s", filename); webkit_network_request_set_uri(request, tmp); g_free(tmp); } else { char *b64 = purple_base64_encode(purple_imgstore_get_data(img), purple_imgstore_get_size(img)); const char *type = purple_imgstore_get_extension(img); char *tmp = g_strdup_printf("data:image/%s;base64,%s", type, b64); webkit_network_request_set_uri(request, tmp); g_free(b64); g_free(tmp); } } } static gboolean process_load_queue(GtkWebView *webview) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); int type; char *str; WebKitDOMDocument *doc; WebKitDOMHTMLElement *body; WebKitDOMNode *start, *end; WebKitDOMRange *range; gboolean require_scroll = FALSE; if (priv->is_loading) { priv->loader = 0; return FALSE; } if (!priv->load_queue || g_queue_is_empty(priv->load_queue)) { priv->loader = 0; return FALSE; } type = GPOINTER_TO_INT(g_queue_pop_head(priv->load_queue)); str = g_queue_pop_head(priv->load_queue); switch (type) { case LOAD_HTML: doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); body = webkit_dom_document_get_body(doc); start = webkit_dom_node_get_last_child(WEBKIT_DOM_NODE(body)); if (priv->autoscroll) { require_scroll = (gtk_adjustment_get_value(priv->vadj) >= (gtk_adjustment_get_upper(priv->vadj) - 1.5*gtk_adjustment_get_page_size(priv->vadj))); } webkit_dom_html_element_insert_adjacent_html(body, "beforeend", str, NULL); range = webkit_dom_document_create_range(doc); if (start) { end = webkit_dom_node_get_last_child(WEBKIT_DOM_NODE(body)); webkit_dom_range_set_start_after(range, WEBKIT_DOM_NODE(start), NULL); webkit_dom_range_set_end_after(range, WEBKIT_DOM_NODE(end), NULL); } else { webkit_dom_range_select_node_contents(range, WEBKIT_DOM_NODE(body), NULL); } if (require_scroll) { if (start) webkit_dom_element_scroll_into_view(WEBKIT_DOM_ELEMENT(start), TRUE); else webkit_dom_element_scroll_into_view(WEBKIT_DOM_ELEMENT(body), TRUE); } g_signal_emit(webview, signals[HTML_APPENDED], 0, range); break; case LOAD_JS: webkit_web_view_execute_script(WEBKIT_WEB_VIEW(webview), str); break; default: purple_debug_error("webview", "Got unknown loading queue type: %d\n", type); break; } g_free(str); return TRUE; } static void webview_load_started(WebKitWebView *webview, WebKitWebFrame *frame, gpointer userdata) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); /* is there a better way to test for is_loading? */ priv->is_loading = TRUE; } static void webview_load_finished(WebKitWebView *webview, WebKitWebFrame *frame, gpointer userdata) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); priv->is_loading = FALSE; if (priv->loader == 0) priv->loader = g_idle_add((GSourceFunc)process_load_queue, webview); } static void webview_show_inspector_cb(GtkWidget *item, GtkWebViewInspectData *data) { webkit_web_inspector_inspect_node(data->inspector, data->node); } static GtkWebViewProtocol * webview_find_protocol(const char *url, gboolean reverse) { GtkWebViewClass *klass; GList *iter; GtkWebViewProtocol *proto = NULL; int length = reverse ? strlen(url) : -1; klass = g_type_class_ref(GTK_TYPE_WEBVIEW); for (iter = klass->protocols; iter; iter = iter->next) { proto = iter->data; if (g_ascii_strncasecmp(url, proto->name, reverse ? MIN(length, proto->length) : proto->length) == 0) { g_type_class_unref(klass); return proto; } } g_type_class_unref(klass); return NULL; } static gboolean webview_navigation_decision(WebKitWebView *webview, WebKitWebFrame *frame, WebKitNetworkRequest *request, WebKitWebNavigationAction *navigation_action, WebKitWebPolicyDecision *policy_decision, gpointer userdata) { const gchar *uri; WebKitWebNavigationReason reason; uri = webkit_network_request_get_uri(request); reason = webkit_web_navigation_action_get_reason(navigation_action); if (reason == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) { GtkWebViewProtocol *proto = webview_find_protocol(uri, FALSE); if (proto) { /* XXX: Do something with the return value? */ proto->activate(GTK_WEBVIEW(webview), uri); } webkit_web_policy_decision_ignore(policy_decision); } else if (reason == WEBKIT_WEB_NAVIGATION_REASON_OTHER) webkit_web_policy_decision_use(policy_decision); else webkit_web_policy_decision_ignore(policy_decision); return TRUE; } static void do_popup_menu(WebKitWebView *webview, int button, int time, int context, WebKitDOMNode *node, const char *uri) { GtkWidget *menu; GtkWidget *cut, *copy, *paste, *delete, *select; WebKitWebSettings *settings; gboolean inspector; menu = gtk_menu_new(); g_signal_connect(menu, "selection-done", G_CALLBACK(gtk_widget_destroy), NULL); if ((context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) && !(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_SELECTION)) { GtkWebViewProtocol *proto = NULL; GList *children; while (node && !WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT(node)) { node = webkit_dom_node_get_parent_node(node); } if (uri && node) proto = webview_find_protocol(uri, FALSE); if (proto && proto->context_menu) { proto->context_menu(GTK_WEBVIEW(webview), WEBKIT_DOM_HTML_ANCHOR_ELEMENT(node), menu); } children = gtk_container_get_children(GTK_CONTAINER(menu)); if (!children) { GtkWidget *item = gtk_menu_item_new_with_label(_("No actions available")); gtk_widget_show(item); gtk_widget_set_sensitive(item, FALSE); gtk_menu_shell_append(GTK_MENU_SHELL(menu), item); } else { g_list_free(children); } gtk_widget_show_all(menu); } else { /* Using connect_swapped means we don't need any wrapper functions */ cut = pidgin_new_item_from_stock(menu, _("Cu_t"), GTK_STOCK_CUT, NULL, NULL, 0, 0, NULL); g_signal_connect_swapped(G_OBJECT(cut), "activate", G_CALLBACK(webkit_web_view_cut_clipboard), webview); copy = pidgin_new_item_from_stock(menu, _("_Copy"), GTK_STOCK_COPY, NULL, NULL, 0, 0, NULL); g_signal_connect_swapped(G_OBJECT(copy), "activate", G_CALLBACK(webkit_web_view_copy_clipboard), webview); paste = pidgin_new_item_from_stock(menu, _("_Paste"), GTK_STOCK_PASTE, NULL, NULL, 0, 0, NULL); g_signal_connect_swapped(G_OBJECT(paste), "activate", G_CALLBACK(webkit_web_view_paste_clipboard), webview); delete = pidgin_new_item_from_stock(menu, _("_Delete"), GTK_STOCK_DELETE, NULL, NULL, 0, 0, NULL); g_signal_connect_swapped(G_OBJECT(delete), "activate", G_CALLBACK(webkit_web_view_delete_selection), webview); pidgin_separator(menu); select = pidgin_new_item_from_stock(menu, _("Select _All"), GTK_STOCK_SELECT_ALL, NULL, NULL, 0, 0, NULL); g_signal_connect_swapped(G_OBJECT(select), "activate", G_CALLBACK(webkit_web_view_select_all), webview); gtk_widget_set_sensitive(cut, webkit_web_view_can_cut_clipboard(webview)); gtk_widget_set_sensitive(copy, webkit_web_view_can_copy_clipboard(webview)); gtk_widget_set_sensitive(paste, webkit_web_view_can_paste_clipboard(webview)); gtk_widget_set_sensitive(delete, webkit_web_view_can_cut_clipboard(webview)); } settings = webkit_web_view_get_settings(webview); g_object_get(G_OBJECT(settings), "enable-developer-extras", &inspector, NULL); if (inspector) { GtkWidget *inspect; GtkWebViewInspectData *data; data = g_new0(GtkWebViewInspectData, 1); data->inspector = webkit_web_view_get_inspector(webview); data->node = node; pidgin_separator(menu); inspect = pidgin_new_item_from_stock(menu, _("Inspect _Element"), NULL, NULL, NULL, 0, 0, NULL); g_signal_connect_data(G_OBJECT(inspect), "activate", G_CALLBACK(webview_show_inspector_cb), data, (GClosureNotify)g_free, 0); } g_signal_emit_by_name(G_OBJECT(webview), "populate-popup", menu); gtk_menu_attach_to_widget(GTK_MENU(menu), GTK_WIDGET(webview), NULL); gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, button, time); } static gboolean webview_popup_menu(WebKitWebView *webview) { WebKitDOMDocument *doc; WebKitDOMElement *active; WebKitDOMElement *link; int context; char *uri; context = WEBKIT_HIT_TEST_RESULT_CONTEXT_DOCUMENT; uri = NULL; doc = webkit_web_view_get_dom_document(webview); active = webkit_dom_html_document_get_active_element(WEBKIT_DOM_HTML_DOCUMENT(doc)); link = active; while (link && !WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT(link)) link = webkit_dom_node_get_parent_element(WEBKIT_DOM_NODE(link)); if (WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT(link)) { context |= WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK; uri = webkit_dom_html_anchor_element_get_href(WEBKIT_DOM_HTML_ANCHOR_ELEMENT(link)); } do_popup_menu(webview, 0, gtk_get_current_event_time(), context, WEBKIT_DOM_NODE(active), uri); g_free(uri); return TRUE; } static gboolean webview_button_pressed(WebKitWebView *webview, GdkEventButton *event) { if (event->type == GDK_BUTTON_PRESS && event->button == 3) { WebKitHitTestResult *hit; int context; WebKitDOMNode *node; char *uri; hit = webkit_web_view_get_hit_test_result(webview, event); g_object_get(G_OBJECT(hit), "context", &context, "inner-node", &node, "link-uri", &uri, NULL); do_popup_menu(webview, event->button, event->time, context, node, uri); g_free(uri); return TRUE; } return FALSE; } /* * Smoothly scroll a WebView. * * @return TRUE if the window needs to be scrolled further, FALSE if we're at the bottom. */ static gboolean smooth_scroll_cb(gpointer data) { GtkWebViewPriv *priv = data; GtkAdjustment *adj; gdouble max_val; gdouble scroll_val; g_return_val_if_fail(priv->scroll_time != NULL, FALSE); adj = priv->vadj; max_val = gtk_adjustment_get_upper(adj) - gtk_adjustment_get_page_size(adj); scroll_val = gtk_adjustment_get_value(adj) + ((max_val - gtk_adjustment_get_value(adj)) / 3); if (g_timer_elapsed(priv->scroll_time, NULL) > MAX_SCROLL_TIME || scroll_val >= max_val) { /* time's up. jump to the end and kill the timer */ gtk_adjustment_set_value(adj, max_val); g_timer_destroy(priv->scroll_time); priv->scroll_time = NULL; priv->scroll_src = 0; return FALSE; } /* scroll by 1/3rd the remaining distance */ gtk_adjustment_set_value(adj, scroll_val); return TRUE; } static gboolean scroll_idle_cb(gpointer data) { GtkWebViewPriv *priv = data; GtkAdjustment *adj = priv->vadj; gdouble max_val; if (adj) { max_val = gtk_adjustment_get_upper(adj) - gtk_adjustment_get_page_size(adj); gtk_adjustment_set_value(adj, max_val); } priv->scroll_src = 0; return FALSE; } static void emit_format_signal(GtkWebView *webview, GtkWebViewButtons buttons) { g_object_ref(webview); g_signal_emit(webview, signals[TOGGLE_FORMAT], 0, buttons); g_object_unref(webview); } static void do_formatting(GtkWebView *webview, const char *name, const char *value) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); WebKitDOMDocument *dom; WebKitDOMDOMWindow *win; WebKitDOMDOMSelection *sel = NULL; WebKitDOMRange *range = NULL; dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); if (priv->edit.wbfo) { win = webkit_dom_document_get_default_view(dom); sel = webkit_dom_dom_window_get_selection(win); if (webkit_dom_dom_selection_get_range_count(sel) > 0) range = webkit_dom_dom_selection_get_range_at(sel, 0, NULL); webkit_web_view_select_all(WEBKIT_WEB_VIEW(webview)); } priv->edit.block_changed = TRUE; webkit_dom_document_exec_command(dom, name, FALSE, value); priv->edit.block_changed = FALSE; if (priv->edit.wbfo) { if (range) { webkit_dom_dom_selection_remove_all_ranges(sel); webkit_dom_dom_selection_add_range(sel, range); } else { webkit_dom_dom_selection_collapse_to_end(sel, NULL); } } } static void webview_font_shrink(GtkWebView *webview) { gint fontsize; char *tmp; fontsize = gtk_webview_get_current_fontsize(webview); fontsize = MAX(fontsize - 1, 1); tmp = g_strdup_printf("%d", fontsize); do_formatting(webview, "fontSize", tmp); g_free(tmp); } static void webview_font_grow(GtkWebView *webview) { gint fontsize; char *tmp; fontsize = gtk_webview_get_current_fontsize(webview); fontsize = MIN(fontsize + 1, MAX_FONT_SIZE); tmp = g_strdup_printf("%d", fontsize); do_formatting(webview, "fontSize", tmp); g_free(tmp); } static void webview_clear_formatting(GtkWebView *webview) { if (!webkit_web_view_get_editable(WEBKIT_WEB_VIEW(webview))) return; do_formatting(webview, "removeFormat", ""); do_formatting(webview, "unlink", ""); do_formatting(webview, "backColor", "inherit"); } static void webview_toggle_format(GtkWebView *webview, GtkWebViewButtons buttons) { /* since this function is the handler for the formatting keystrokes, we need to check here that the formatting attempted is permitted */ buttons &= gtk_webview_get_format_functions(webview); switch (buttons) { case GTK_WEBVIEW_BOLD: do_formatting(webview, "bold", ""); break; case GTK_WEBVIEW_ITALIC: do_formatting(webview, "italic", ""); break; case GTK_WEBVIEW_UNDERLINE: do_formatting(webview, "underline", ""); break; case GTK_WEBVIEW_STRIKE: do_formatting(webview, "strikethrough", ""); break; case GTK_WEBVIEW_SHRINK: webview_font_shrink(webview); break; case GTK_WEBVIEW_GROW: webview_font_grow(webview); break; default: break; } } static void editable_input_cb(GtkWebView *webview, gpointer data) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); if (!priv->edit.block_changed && gtk_widget_is_sensitive(GTK_WIDGET(webview))) g_signal_emit(webview, signals[CHANGED], 0); } /****************************************************************************** * GObject Stuff *****************************************************************************/ GtkWidget * gtk_webview_new(void) { return GTK_WIDGET(g_object_new(gtk_webview_get_type(), NULL)); } static void gtk_webview_finalize(GObject *webview) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); gpointer temp; if (priv->loader) g_source_remove(priv->loader); while (!g_queue_is_empty(priv->load_queue)) { temp = g_queue_pop_head(priv->load_queue); temp = g_queue_pop_head(priv->load_queue); g_free(temp); } g_queue_free(priv->load_queue); G_OBJECT_CLASS(parent_class)->finalize(G_OBJECT(webview)); } static void gtk_webview_class_init(GtkWebViewClass *klass, gpointer userdata) { GObjectClass *gobject_class; GtkBindingSet *binding_set; parent_class = g_type_class_ref(webkit_web_view_get_type()); gobject_class = G_OBJECT_CLASS(klass); g_type_class_add_private(klass, sizeof(GtkWebViewPriv)); signals[BUTTONS_UPDATE] = g_signal_new("allowed-formats-updated", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET(GtkWebViewClass, buttons_update), NULL, 0, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); signals[TOGGLE_FORMAT] = g_signal_new("format-toggled", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET(GtkWebViewClass, toggle_format), NULL, 0, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); signals[CLEAR_FORMAT] = g_signal_new("format-cleared", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET(GtkWebViewClass, clear_format), NULL, 0, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[UPDATE_FORMAT] = g_signal_new("format-updated", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET(GtkWebViewClass, update_format), NULL, 0, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[CHANGED] = g_signal_new("changed", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET(GtkWebViewClass, changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[HTML_APPENDED] = g_signal_new("html-appended", G_TYPE_FROM_CLASS(gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET(GtkWebViewClass, html_appended), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, WEBKIT_TYPE_DOM_RANGE, NULL); klass->toggle_format = webview_toggle_format; klass->clear_format = webview_clear_formatting; gobject_class->finalize = gtk_webview_finalize; binding_set = gtk_binding_set_by_class(parent_class); gtk_binding_entry_add_signal(binding_set, GDK_KEY_b, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_BOLD); gtk_binding_entry_add_signal(binding_set, GDK_KEY_i, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_ITALIC); gtk_binding_entry_add_signal(binding_set, GDK_KEY_u, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_UNDERLINE); gtk_binding_entry_add_signal(binding_set, GDK_KEY_plus, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_GROW); gtk_binding_entry_add_signal(binding_set, GDK_KEY_equal, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_GROW); gtk_binding_entry_add_signal(binding_set, GDK_KEY_minus, GDK_CONTROL_MASK, "format-toggled", 1, G_TYPE_INT, GTK_WEBVIEW_SHRINK); binding_set = gtk_binding_set_by_class(klass); gtk_binding_entry_add_signal(binding_set, GDK_KEY_r, GDK_CONTROL_MASK, "format-cleared", 0); } static void gtk_webview_init(GtkWebView *webview, gpointer userdata) { GtkWebViewPriv *priv = GTK_WEBVIEW_GET_PRIVATE(webview); priv->load_queue = g_queue_new(); g_signal_connect(G_OBJECT(webview), "button-press-event", G_CALLBACK(webview_button_pressed), NULL); g_signal_connect(G_OBJECT(webview), "popup-menu", G_CALLBACK(webview_popup_menu), NULL); g_signal_connect(G_OBJECT(webview), "navigation-policy-decision-requested", G_CALLBACK(webview_navigation_decision), NULL); g_signal_connect(G_OBJECT(webview), "load-started", G_CALLBACK(webview_load_started), NULL); g_signal_connect(G_OBJECT(webview), "load-finished", G_CALLBACK(webview_load_finished), NULL); g_signal_connect(G_OBJECT(webview), "resource-request-starting", G_CALLBACK(webview_resource_loading), NULL); } GType gtk_webview_get_type(void) { static GType mview_type = 0; if (G_UNLIKELY(mview_type == 0)) { static const GTypeInfo mview_info = { sizeof(GtkWebViewClass), NULL, NULL, (GClassInitFunc)gtk_webview_class_init, NULL, NULL, sizeof(GtkWebView), 0, (GInstanceInitFunc)gtk_webview_init, NULL }; mview_type = g_type_register_static(webkit_web_view_get_type(), "GtkWebView", &mview_info, 0); } return mview_type; } /***************************************************************************** * Public API functions *****************************************************************************/ char * gtk_webview_quote_js_string(const char *text) { GString *str = g_string_new("\""); const char *cur = text; while (cur && *cur) { switch (*cur) { case '\\': g_string_append(str, "\\\\"); break; case '\"': g_string_append(str, "\\\""); break; case '\r': g_string_append(str, "<br/>"); break; case '\n': break; default: g_string_append_c(str, *cur); } cur++; } g_string_append_c(str, '"'); return g_string_free(str, FALSE); } void gtk_webview_safe_execute_script(GtkWebView *webview, const char *script) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); g_queue_push_tail(priv->load_queue, GINT_TO_POINTER(LOAD_JS)); g_queue_push_tail(priv->load_queue, g_strdup(script)); if (!priv->is_loading && priv->loader == 0) priv->loader = g_idle_add((GSourceFunc)process_load_queue, webview); } void gtk_webview_load_html_string(GtkWebView *webview, const char *html) { g_return_if_fail(webview != NULL); webkit_web_view_load_string(WEBKIT_WEB_VIEW(webview), html, NULL, NULL, "file:///"); } void gtk_webview_load_html_string_with_selection(GtkWebView *webview, const char *html) { g_return_if_fail(webview != NULL); gtk_webview_load_html_string(webview, html); gtk_webview_safe_execute_script(webview, "var s = window.getSelection();" "var r = document.createRange();" "var n = document.getElementById('caret');" "r.selectNodeContents(n);" "var f = r.extractContents();" "r.selectNode(n);" "r.insertNode(f);" "n.parentNode.removeChild(n);" "s.removeAllRanges();" "s.addRange(r);"); } void gtk_webview_append_html(GtkWebView *webview, const char *html) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); g_queue_push_tail(priv->load_queue, GINT_TO_POINTER(LOAD_HTML)); g_queue_push_tail(priv->load_queue, g_strdup(html)); if (!priv->is_loading && priv->loader == 0) priv->loader = g_idle_add((GSourceFunc)process_load_queue, webview); } void gtk_webview_set_vadjustment(GtkWebView *webview, GtkAdjustment *vadj) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); priv->vadj = vadj; } void gtk_webview_scroll_to_end(GtkWebView *webview, gboolean smooth) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); if (priv->scroll_time) g_timer_destroy(priv->scroll_time); if (priv->scroll_src) g_source_remove(priv->scroll_src); if (smooth) { priv->scroll_time = g_timer_new(); priv->scroll_src = g_timeout_add_full(G_PRIORITY_LOW, SCROLL_DELAY, smooth_scroll_cb, priv, NULL); } else { priv->scroll_time = NULL; priv->scroll_src = g_idle_add_full(G_PRIORITY_LOW, scroll_idle_cb, priv, NULL); } } void gtk_webview_set_autoscroll(GtkWebView *webview, gboolean scroll) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); priv->autoscroll = scroll; } gboolean gtk_webview_get_autoscroll(GtkWebView *webview) { GtkWebViewPriv *priv; g_return_val_if_fail(webview != NULL, FALSE); priv = GTK_WEBVIEW_GET_PRIVATE(webview); return priv->autoscroll; } void gtk_webview_page_up(GtkWebView *webview) { GtkWebViewPriv *priv; GtkAdjustment *vadj; gdouble scroll_val; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); vadj = priv->vadj; scroll_val = gtk_adjustment_get_value(vadj) - gtk_adjustment_get_page_size(vadj); scroll_val = MAX(scroll_val, gtk_adjustment_get_lower(vadj)); gtk_adjustment_set_value(vadj, scroll_val); } void gtk_webview_page_down(GtkWebView *webview) { GtkWebViewPriv *priv; GtkAdjustment *vadj; gdouble scroll_val; gdouble page_size; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); vadj = priv->vadj; page_size = gtk_adjustment_get_page_size(vadj); scroll_val = gtk_adjustment_get_value(vadj) + page_size; scroll_val = MIN(scroll_val, gtk_adjustment_get_upper(vadj) - page_size); gtk_adjustment_set_value(vadj, scroll_val); } void gtk_webview_set_editable(GtkWebView *webview, gboolean editable) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); webkit_web_view_set_editable(WEBKIT_WEB_VIEW(webview), editable); if (editable) { g_signal_connect(G_OBJECT(webview), "user-changed-contents", G_CALLBACK(editable_input_cb), NULL); } else { g_signal_handlers_disconnect_by_func(G_OBJECT(webview), G_CALLBACK(editable_input_cb), NULL); } priv->format_functions = GTK_WEBVIEW_ALL; } void gtk_webview_setup_entry(GtkWebView *webview, PurpleConnectionFlags flags) { GtkWebViewButtons buttons; g_return_if_fail(webview != NULL); if (flags & PURPLE_CONNECTION_HTML) { gboolean bold, italic, underline, strike; buttons = GTK_WEBVIEW_ALL; if (flags & PURPLE_CONNECTION_NO_BGCOLOR) buttons &= ~GTK_WEBVIEW_BACKCOLOR; if (flags & PURPLE_CONNECTION_NO_FONTSIZE) { buttons &= ~GTK_WEBVIEW_GROW; buttons &= ~GTK_WEBVIEW_SHRINK; } if (flags & PURPLE_CONNECTION_NO_URLDESC) buttons &= ~GTK_WEBVIEW_LINKDESC; gtk_webview_get_current_format(webview, &bold, &italic, &underline, &strike); gtk_webview_set_format_functions(webview, GTK_WEBVIEW_ALL); if (purple_prefs_get_bool(PIDGIN_PREFS_ROOT "/conversations/send_bold") != bold) gtk_webview_toggle_bold(webview); if (purple_prefs_get_bool(PIDGIN_PREFS_ROOT "/conversations/send_italic") != italic) gtk_webview_toggle_italic(webview); if (purple_prefs_get_bool(PIDGIN_PREFS_ROOT "/conversations/send_underline") != underline) gtk_webview_toggle_underline(webview); if (purple_prefs_get_bool(PIDGIN_PREFS_ROOT "/conversations/send_strike") != strike) gtk_webview_toggle_strike(webview); gtk_webview_toggle_fontface(webview, purple_prefs_get_string(PIDGIN_PREFS_ROOT "/conversations/font_face")); if (!(flags & PURPLE_CONNECTION_NO_FONTSIZE)) { int size = purple_prefs_get_int(PIDGIN_PREFS_ROOT "/conversations/font_size"); /* 3 is the default. */ if (size != 3) gtk_webview_font_set_size(webview, size); } gtk_webview_toggle_forecolor(webview, purple_prefs_get_string(PIDGIN_PREFS_ROOT "/conversations/fgcolor")); if (!(flags & PURPLE_CONNECTION_NO_BGCOLOR)) { gtk_webview_toggle_backcolor(webview, purple_prefs_get_string(PIDGIN_PREFS_ROOT "/conversations/bgcolor")); } else { gtk_webview_toggle_backcolor(webview, ""); } if (flags & PURPLE_CONNECTION_FORMATTING_WBFO) gtk_webview_set_whole_buffer_formatting_only(webview, TRUE); else gtk_webview_set_whole_buffer_formatting_only(webview, FALSE); } else { buttons = GTK_WEBVIEW_SMILEY | GTK_WEBVIEW_IMAGE; webview_clear_formatting(webview); } if (flags & PURPLE_CONNECTION_NO_IMAGES) buttons &= ~GTK_WEBVIEW_IMAGE; if (flags & PURPLE_CONNECTION_ALLOW_CUSTOM_SMILEY) buttons |= GTK_WEBVIEW_CUSTOM_SMILEY; else buttons &= ~GTK_WEBVIEW_CUSTOM_SMILEY; gtk_webview_set_format_functions(webview, buttons); } void pidgin_webview_set_spellcheck(GtkWebView *webview, gboolean enable) { WebKitWebSettings *settings; g_return_if_fail(webview != NULL); settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(webview)); g_object_set(G_OBJECT(settings), "enable-spell-checking", enable, NULL); webkit_web_view_set_settings(WEBKIT_WEB_VIEW(webview), settings); } void gtk_webview_set_whole_buffer_formatting_only(GtkWebView *webview, gboolean wbfo) { GtkWebViewPriv *priv; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); priv->edit.wbfo = wbfo; } void gtk_webview_set_format_functions(GtkWebView *webview, GtkWebViewButtons buttons) { GtkWebViewPriv *priv; GObject *object; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); object = g_object_ref(G_OBJECT(webview)); priv->format_functions = buttons; g_signal_emit(object, signals[BUTTONS_UPDATE], 0, buttons); g_object_unref(object); } void gtk_webview_activate_anchor(WebKitDOMHTMLAnchorElement *link) { WebKitDOMDocument *doc; WebKitDOMEvent *event; doc = webkit_dom_node_get_owner_document(WEBKIT_DOM_NODE(link)); event = webkit_dom_document_create_event(doc, "MouseEvent", NULL); webkit_dom_event_init_event(event, "click", TRUE, TRUE); webkit_dom_node_dispatch_event(WEBKIT_DOM_NODE(link), event, NULL); } gboolean gtk_webview_class_register_protocol(const char *name, gboolean (*activate)(GtkWebView *webview, const char *uri), gboolean (*context_menu)(GtkWebView *webview, WebKitDOMHTMLAnchorElement *link, GtkWidget *menu)) { GtkWebViewClass *klass; GtkWebViewProtocol *proto; g_return_val_if_fail(name, FALSE); klass = g_type_class_ref(GTK_TYPE_WEBVIEW); g_return_val_if_fail(klass, FALSE); if ((proto = webview_find_protocol(name, TRUE))) { if (activate) { return FALSE; } klass->protocols = g_list_remove(klass->protocols, proto); g_free(proto->name); g_free(proto); return TRUE; } else if (!activate) { return FALSE; } proto = g_new0(GtkWebViewProtocol, 1); proto->name = g_strdup(name); proto->length = strlen(name); proto->activate = activate; proto->context_menu = context_menu; klass->protocols = g_list_prepend(klass->protocols, proto); return TRUE; } gchar * gtk_webview_get_head_html(GtkWebView *webview) { WebKitDOMDocument *doc; WebKitDOMHTMLHeadElement *head; gchar *html; g_return_val_if_fail(webview != NULL, NULL); doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); head = webkit_dom_document_get_head(doc); html = webkit_dom_html_element_get_inner_html(WEBKIT_DOM_HTML_ELEMENT(head)); return html; } gchar * gtk_webview_get_body_html(GtkWebView *webview) { WebKitDOMDocument *doc; WebKitDOMHTMLElement *body; gchar *html; g_return_val_if_fail(webview != NULL, NULL); doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); body = webkit_dom_document_get_body(doc); html = webkit_dom_html_element_get_inner_html(body); return html; } gchar * gtk_webview_get_body_text(GtkWebView *webview) { WebKitDOMDocument *doc; WebKitDOMHTMLElement *body; gchar *text; g_return_val_if_fail(webview != NULL, NULL); doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); body = webkit_dom_document_get_body(doc); text = webkit_dom_html_element_get_inner_text(body); return text; } gchar * gtk_webview_get_selected_text(GtkWebView *webview) { WebKitDOMDocument *dom; WebKitDOMDOMWindow *win; WebKitDOMDOMSelection *sel; WebKitDOMRange *range; g_return_val_if_fail(webview != NULL, NULL); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); win = webkit_dom_document_get_default_view(dom); sel = webkit_dom_dom_window_get_selection(win); range = webkit_dom_dom_selection_get_range_at(sel, 0, NULL); return webkit_dom_range_get_text(range); } GtkWebViewButtons gtk_webview_get_format_functions(GtkWebView *webview) { GtkWebViewPriv *priv; g_return_val_if_fail(webview != NULL, 0); priv = GTK_WEBVIEW_GET_PRIVATE(webview); return priv->format_functions; } void gtk_webview_get_current_format(GtkWebView *webview, gboolean *bold, gboolean *italic, gboolean *underline, gboolean *strike) { WebKitDOMDocument *dom; g_return_if_fail(webview != NULL); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); if (bold) *bold = webkit_dom_document_query_command_state(dom, "bold"); if (italic) *italic = webkit_dom_document_query_command_state(dom, "italic"); if (underline) *underline = webkit_dom_document_query_command_state(dom, "underline"); if (strike) *strike = webkit_dom_document_query_command_state(dom, "strikethrough"); } char * gtk_webview_get_current_fontface(GtkWebView *webview) { WebKitDOMDocument *dom; g_return_val_if_fail(webview != NULL, NULL); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); return webkit_dom_document_query_command_value(dom, "fontName"); } char * gtk_webview_get_current_forecolor(GtkWebView *webview) { WebKitDOMDocument *dom; g_return_val_if_fail(webview != NULL, NULL); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); return webkit_dom_document_query_command_value(dom, "foreColor"); } char * gtk_webview_get_current_backcolor(GtkWebView *webview) { WebKitDOMDocument *dom; g_return_val_if_fail(webview != NULL, NULL); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); return webkit_dom_document_query_command_value(dom, "backColor"); } gint gtk_webview_get_current_fontsize(GtkWebView *webview) { WebKitDOMDocument *dom; gchar *text; gint size; g_return_val_if_fail(webview != NULL, 0); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); text = webkit_dom_document_query_command_value(dom, "fontSize"); size = atoi(text); g_free(text); return size; } gboolean gtk_webview_get_editable(GtkWebView *webview) { return webkit_web_view_get_editable(WEBKIT_WEB_VIEW(webview)); } void gtk_webview_clear_formatting(GtkWebView *webview) { GObject *object; g_return_if_fail(webview != NULL); object = g_object_ref(G_OBJECT(webview)); g_signal_emit(object, signals[CLEAR_FORMAT], 0); g_object_unref(object); } void gtk_webview_toggle_bold(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_BOLD); } void gtk_webview_toggle_italic(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_ITALIC); } void gtk_webview_toggle_underline(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_UNDERLINE); } void gtk_webview_toggle_strike(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_STRIKE); } gboolean gtk_webview_toggle_forecolor(GtkWebView *webview, const char *color) { g_return_val_if_fail(webview != NULL, FALSE); do_formatting(webview, "foreColor", color); emit_format_signal(webview, GTK_WEBVIEW_FORECOLOR); return FALSE; } gboolean gtk_webview_toggle_backcolor(GtkWebView *webview, const char *color) { g_return_val_if_fail(webview != NULL, FALSE); do_formatting(webview, "backColor", color); emit_format_signal(webview, GTK_WEBVIEW_BACKCOLOR); return FALSE; } gboolean gtk_webview_toggle_fontface(GtkWebView *webview, const char *face) { g_return_val_if_fail(webview != NULL, FALSE); do_formatting(webview, "fontName", face); emit_format_signal(webview, GTK_WEBVIEW_FACE); return FALSE; } void gtk_webview_font_set_size(GtkWebView *webview, gint size) { char *tmp; g_return_if_fail(webview != NULL); tmp = g_strdup_printf("%d", size); do_formatting(webview, "fontSize", tmp); emit_format_signal(webview, GTK_WEBVIEW_SHRINK|GTK_WEBVIEW_GROW); g_free(tmp); } void gtk_webview_font_shrink(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_SHRINK); } void gtk_webview_font_grow(GtkWebView *webview) { g_return_if_fail(webview != NULL); emit_format_signal(webview, GTK_WEBVIEW_GROW); } void gtk_webview_insert_hr(GtkWebView *webview) { GtkWebViewPriv *priv; WebKitDOMDocument *dom; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); priv->edit.block_changed = TRUE; webkit_dom_document_exec_command(dom, "insertHorizontalRule", FALSE, ""); priv->edit.block_changed = FALSE; } void gtk_webview_insert_link(GtkWebView *webview, const char *url, const char *desc) { GtkWebViewPriv *priv; WebKitDOMDocument *dom; char *link; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); link = g_strdup_printf("<a href='%s'>%s</a>", url, desc ? desc : url); priv->edit.block_changed = TRUE; webkit_dom_document_exec_command(dom, "insertHTML", FALSE, link); priv->edit.block_changed = FALSE; g_free(link); } void gtk_webview_insert_image(GtkWebView *webview, int id) { GtkWebViewPriv *priv; WebKitDOMDocument *dom; char *img; g_return_if_fail(webview != NULL); priv = GTK_WEBVIEW_GET_PRIVATE(webview); dom = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(webview)); img = g_strdup_printf("<img src='" PURPLE_STORED_IMAGE_PROTOCOL "%d'/>", id); priv->edit.block_changed = TRUE; webkit_dom_document_exec_command(dom, "insertHTML", FALSE, img); priv->edit.block_changed = FALSE; g_free(img); }
