midori/extensions/formhistory/formhistory-gdom-frontend.c
2012-01-19 02:31:27 +01:00

502 lines
17 KiB
C

/*
Copyright (C) 2009-2012 Alexander Butenko <a.butenka@gmail.com>
Copyright (C) 2009-2012 Christian Dywan <christian@twotoasts.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
*/
#include "formhistory-frontend.h"
#ifdef FORMHISTORY_USE_GDOM
#define COMPLETION_DELAY 200
FormHistoryPriv*
formhistory_private_new ()
{
FormHistoryPriv* priv;
priv = g_slice_new (FormHistoryPriv);
priv->oldkeyword = g_strdup ("");
priv->selection_index = -1;
return priv;
}
void
formhistory_suggestions_hide_cb (WebKitDOMElement* element,
WebKitDOMEvent* dom_event,
FormHistoryPriv* priv)
{
if (gtk_widget_get_visible (priv->popup))
gtk_widget_hide (priv->popup);
priv->selection_index = -1;
}
static void
formhistory_suggestion_set (GtkTreePath* path,
FormHistoryPriv* priv)
{
GtkTreeIter iter;
gchar* value;
if (!gtk_tree_model_get_iter (priv->completion_model, &iter, path))
return;
gtk_tree_model_get (priv->completion_model, &iter, 0, &value, -1);
g_object_set (priv->element, "value", value, NULL);
g_free (value);
}
static gboolean
formhistory_suggestion_selected_cb (GtkWidget* treeview,
GdkEventButton* event,
FormHistoryPriv* priv)
{
GtkTreePath* path;
if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview),
event->x, event->y, &path, NULL, NULL, NULL))
{
formhistory_suggestion_set (path, priv);
formhistory_suggestions_hide_cb (NULL, NULL, priv);
gtk_tree_path_free (path);
return TRUE;
}
return FALSE;
}
static void
formhistory_suggestion_remove (GtkTreePath* path,
FormHistoryPriv* priv)
{
GtkTreeIter iter;
gchar* sqlcmd;
char* errmsg = NULL;
gchar* name;
gchar* value;
if (!gtk_tree_model_get_iter (priv->completion_model, &iter, path))
return;
if (!priv->db)
return;
gtk_tree_model_get (priv->completion_model, &iter, 0, &value, -1);
g_object_get (priv->element, "name", &name, NULL);
gtk_list_store_remove (GTK_LIST_STORE (priv->completion_model), &iter);
sqlcmd = sqlite3_mprintf ("DELETE FROM forms WHERE field = '%q' AND value = '%q'",
name, value);
sqlite3_exec (priv->db, sqlcmd, NULL, NULL, &errmsg);
sqlite3_free (sqlcmd);
}
static void
get_absolute_offset_for_element (WebKitDOMElement* element,
WebKitDOMDocument* element_document,
WebKitDOMNodeList* frames,
glong* x,
glong* y,
gboolean ismainframe)
{
WebKitDOMElement* offset_parent;
gint i, offset_top = 0, offset_left = 0;
g_object_get (element, "offset-left", &offset_left,
"offset-top", &offset_top,
"offset-parent", &offset_parent,
NULL);
*x += offset_left;
*y += offset_top;
/* To avoid deadlock check only first element of the mainframe parent */
if (ismainframe == TRUE)
return;
if (offset_parent)
goto finish;
/* Element havent returned any parents. Thats mean or there is no parents or we are inside the frame
Loop over all frames we have to find frame == element_document which is a root for our element
and get its offsets */
for (i = 0; i < webkit_dom_node_list_get_length (frames); i++)
{
WebKitDOMDocument *fdoc;
WebKitDOMNode *frame = webkit_dom_node_list_item (frames, i);
if (WEBKIT_DOM_IS_HTML_IFRAME_ELEMENT (frame))
fdoc = webkit_dom_html_iframe_element_get_content_document (WEBKIT_DOM_HTML_IFRAME_ELEMENT (frame));
else
fdoc = webkit_dom_html_frame_element_get_content_document (WEBKIT_DOM_HTML_FRAME_ELEMENT (frame));
if (fdoc == element_document)
{
offset_parent = WEBKIT_DOM_ELEMENT (frame);
ismainframe = TRUE;
/* Add extra 4px to ~cover size of borders */
*y += 4;
break;
}
}
finish:
if (offset_parent)
get_absolute_offset_for_element (offset_parent, element_document, frames, x, y, ismainframe);
}
static void
formhistory_reposition_popup (FormHistoryPriv* priv)
{
WebKitDOMDocument* element_document;
WebKitDOMNodeList* frames;
GtkWidget* view;
GdkWindow* window;
gint rx, ry;
gint wx, wy;
glong x = 0, y = 0;
glong height;
view = g_object_get_data (G_OBJECT (priv->element), "webview");
GtkWidget* toplevel = gtk_widget_get_toplevel (view);
/* Position of a root window */
window = gtk_widget_get_window (toplevel);
gdk_window_get_position (window, &rx, &ry);
/* Postion of webview in root window */
window = gtk_widget_get_window (view);
gdk_window_get_position (window, &wx, &wy);
/* Position of editbox on the webview */
frames = g_object_get_data (G_OBJECT (priv->element), "framelist");
element_document = g_object_get_data (G_OBJECT (priv->element), "doc");
get_absolute_offset_for_element (priv->element, element_document, frames, &x, &y, FALSE);
/* Add height as menu should start under editbox, now on top of it */
g_object_get (priv->element, "client-height", &height, NULL);
y += height + 1;
gtk_window_move (GTK_WINDOW (priv->popup), rx + wx + x, ry +wy + y);
/* Window configuration */
gtk_window_set_screen (GTK_WINDOW (priv->popup), gtk_widget_get_screen (view));
gtk_window_set_transient_for (GTK_WINDOW (priv->popup), GTK_WINDOW (toplevel));
gtk_tree_view_columns_autosize (GTK_TREE_VIEW (priv->treeview));
/* FIXME: Adjust size according to treeview width and some reasonable height */
gtk_window_resize (GTK_WINDOW (priv->popup), 50, 80);
}
static void
formhistory_suggestions_show (FormHistoryPriv* priv)
{
GtkListStore* store;
static sqlite3_stmt* stmt;
const gchar* value;
const gchar* name;
const char* sqlcmd;
gint result;
g_source_remove (priv->completion_timeout);
g_object_get (priv->element,
"name", &name,
"value", &value,
NULL);
katze_assign (priv->oldkeyword, g_strdup (value));
if (!priv->popup)
formhistory_construct_popup_gui (priv);
if (!stmt)
{
if (!priv->db)
return;
sqlcmd = "SELECT DISTINCT value FROM forms WHERE field = ?1 and value like ?2";
sqlite3_prepare_v2 (priv->db, sqlcmd, strlen (sqlcmd) + 1, &stmt, NULL);
}
gchar* likedvalue = g_strdup_printf ("%s%%", value);
sqlite3_bind_text (stmt, 1, name, -1, NULL);
sqlite3_bind_text (stmt, 2, likedvalue, -1, g_free);
result = sqlite3_step (stmt);
if (result != SQLITE_ROW)
{
if (result == SQLITE_ERROR)
g_print (_("Failed to select suggestions\n"));
sqlite3_reset (stmt);
sqlite3_clear_bindings (stmt);
formhistory_suggestions_hide_cb (NULL, NULL, priv);
return;
}
store = GTK_LIST_STORE (priv->completion_model);
gtk_list_store_clear (store);
int pos = 0;
while (result == SQLITE_ROW)
{
pos++;
const unsigned char* text = sqlite3_column_text (stmt, 0);
gtk_list_store_insert_with_values (store, NULL, pos, 0, text, -1);
result = sqlite3_step (stmt);
}
sqlite3_reset (stmt);
sqlite3_clear_bindings (stmt);
if (!gtk_widget_get_visible (priv->popup))
{
formhistory_reposition_popup (priv);
gtk_widget_show_all (priv->popup);
}
}
static void
formhistory_editbox_key_pressed_cb (WebKitDOMElement* element,
WebKitDOMEvent* dom_event,
FormHistoryPriv* priv)
{
glong key;
GtkTreePath* path;
const gchar* keyword;
gint matches;
/* FIXME: Priv is still set after module is disabled */
if (!priv)
return;
if (priv->completion_timeout > 0)
g_source_remove (priv->completion_timeout);
priv->element = element;
key = webkit_dom_ui_event_get_key_code (WEBKIT_DOM_UI_EVENT (dom_event));
switch (key)
{
/* ESC key*/
case 27:
case 35:
case 36:
/* Left key*/
case 37:
/* Right key*/
case 39:
if (key == 27)
g_object_set (element, "value", priv->oldkeyword, NULL);
formhistory_suggestions_hide_cb (element, dom_event, priv);
return;
break;
/* Del key */
case 46:
/* Up key */
case 38:
/* Down key */
case 40:
if (!gtk_widget_get_visible (priv->popup))
{
formhistory_suggestions_show (priv);
return;
}
matches = gtk_tree_model_iter_n_children (priv->completion_model, NULL);
if (key == 38)
{
if (priv->selection_index <= 0)
priv->selection_index = matches - 1;
else
priv->selection_index = MAX (priv->selection_index - 1, 0);
}
else if (key == 40)
{
if (priv->selection_index == matches - 1)
priv->selection_index = 0;
else
priv->selection_index = MIN (priv->selection_index + 1, matches -1);
}
if (priv->selection_index == -1)
{
/* No element is selected */
return;
}
path = gtk_tree_path_new_from_indices (priv->selection_index, -1);
if (key == 46)
{
g_object_set (element, "value", priv->oldkeyword, NULL);
formhistory_suggestion_remove (path, priv);
matches--;
}
if (matches == 0)
formhistory_suggestions_hide_cb (element, dom_event, priv);
else
{
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->treeview), path, NULL, FALSE);
formhistory_suggestion_set (path, priv);
}
gtk_tree_path_free (path);
return;
break;
/* PgUp, PgDn, Ins */
case 33:
case 34:
case 45:
/* Shift, Ctrl, Alt, Tab*/
case 16:
case 17:
case 18:
case 9:
return;
break;
}
g_object_get (element, "value", &keyword, NULL);
if (!(keyword && *keyword && *keyword != ' '))
{
formhistory_suggestions_hide_cb (element, dom_event, priv);
return;
}
/* If the same keyword is submitted there's no need to regenerate suggestions */
if (gtk_widget_get_visible (priv->popup) &&
!g_strcmp0 (keyword, priv->oldkeyword))
return;
priv->completion_timeout = g_timeout_add (COMPLETION_DELAY,
(GSourceFunc)formhistory_suggestions_show, priv);
}
static void
formhistory_DOMContentLoaded_cb (WebKitDOMElement* window,
WebKitDOMEvent* dom_event,
FormHistoryPriv* priv)
{
int i;
WebKitDOMDocument* doc;
WebKitDOMNodeList* inputs;
WebKitDOMNodeList* frames;
GtkWidget* web_view;
if (WEBKIT_DOM_IS_DOCUMENT (window))
doc = WEBKIT_DOM_DOCUMENT (window);
else
doc = webkit_dom_dom_window_get_document (WEBKIT_DOM_DOM_WINDOW (window));
inputs = webkit_dom_document_query_selector_all (doc, "input[type='text']", NULL);
frames = g_object_get_data (G_OBJECT (window), "framelist");
web_view = g_object_get_data (G_OBJECT (window), "webview");
for (i = 0; i < webkit_dom_node_list_get_length (inputs); i++)
{
WebKitDOMNode* element = webkit_dom_node_list_item (inputs, i);
#if WEBKIT_CHECK_VERSION (1, 6, 1)
gchar* autocomplete = webkit_dom_html_input_element_get_autocomplete (
WEBKIT_DOM_HTML_INPUT_ELEMENT (element));
gboolean off = !g_strcmp0 (autocomplete, "off");
g_free (autocomplete);
if (off)
continue;
#endif
g_object_set_data (G_OBJECT (element), "doc", doc);
g_object_set_data (G_OBJECT (element), "webview", web_view);
g_object_set_data (G_OBJECT (element), "framelist", frames);
/* Add dblclick? */
webkit_dom_event_target_add_event_listener (
WEBKIT_DOM_EVENT_TARGET (element), "keyup",
G_CALLBACK (formhistory_editbox_key_pressed_cb), false,
priv);
webkit_dom_event_target_add_event_listener (
WEBKIT_DOM_EVENT_TARGET (element), "blur",
G_CALLBACK (formhistory_suggestions_hide_cb), false,
priv);
}
}
void
formhistory_setup_suggestions (WebKitWebView* web_view,
JSContextRef js_context,
MidoriExtension* extension)
{
WebKitDOMDocument* doc;
WebKitDOMNodeList* frames;
int i;
FormHistoryPriv* priv = g_object_get_data (G_OBJECT (extension), "priv");
doc = webkit_web_view_get_dom_document (web_view);
frames = webkit_dom_document_query_selector_all (doc, "iframe, frame", NULL);
g_object_set_data (G_OBJECT (doc), "framelist", frames);
g_object_set_data (G_OBJECT (doc), "webview", web_view);
/* Connect to DOMContentLoaded of the main frame */
webkit_dom_event_target_add_event_listener(
WEBKIT_DOM_EVENT_TARGET (doc), "DOMContentLoaded",
G_CALLBACK (formhistory_DOMContentLoaded_cb), false,
priv);
/* Connect to DOMContentLoaded of frames */
for (i = 0; i < webkit_dom_node_list_get_length (frames); i++)
{
WebKitDOMDOMWindow* framewin;
WebKitDOMNode* frame = webkit_dom_node_list_item (frames, i);
if (WEBKIT_DOM_IS_HTML_IFRAME_ELEMENT (frame))
framewin = webkit_dom_html_iframe_element_get_content_window (WEBKIT_DOM_HTML_IFRAME_ELEMENT (frame));
else
framewin = webkit_dom_html_frame_element_get_content_window (WEBKIT_DOM_HTML_FRAME_ELEMENT (frame));
g_object_set_data (G_OBJECT (framewin), "framelist", frames);
g_object_set_data (G_OBJECT (framewin), "webview", (GtkWidget*)web_view);
webkit_dom_event_target_add_event_listener (
WEBKIT_DOM_EVENT_TARGET (framewin), "DOMContentLoaded",
G_CALLBACK (formhistory_DOMContentLoaded_cb), false,
priv);
}
formhistory_suggestions_hide_cb (NULL, NULL, priv);
}
void
formhistory_private_destroy (FormHistoryPriv *priv)
{
if (priv->db)
{
sqlite3_close (priv->db);
priv->db = NULL;
}
if (priv->oldkeyword)
g_free (priv->oldkeyword);
gtk_widget_destroy (priv->popup);
priv->popup = NULL;
g_slice_free (FormHistoryPriv, priv);
priv = NULL;
}
gboolean
formhistory_construct_popup_gui (FormHistoryPriv* priv)
{
GtkTreeModel* model = NULL;
GtkWidget* popup;
GtkWidget* popup_frame;
GtkWidget* scrolled;
GtkWidget* treeview;
GtkCellRenderer* renderer;
GtkTreeViewColumn* column;
model = (GtkTreeModel*) gtk_list_store_new (1, G_TYPE_STRING);
priv->completion_model = model;
popup = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_type_hint (GTK_WINDOW (popup), GDK_WINDOW_TYPE_HINT_COMBO);
popup_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (popup_frame), GTK_SHADOW_ETCHED_IN);
gtk_container_add (GTK_CONTAINER (popup), popup_frame);
scrolled = g_object_new (GTK_TYPE_SCROLLED_WINDOW,
"hscrollbar-policy", GTK_POLICY_NEVER,
"vscrollbar-policy", GTK_POLICY_AUTOMATIC, NULL);
gtk_container_add (GTK_CONTAINER (popup_frame), scrolled);
treeview = gtk_tree_view_new_with_model (model);
priv->treeview = treeview;
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (treeview), FALSE);
gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (treeview), TRUE);
gtk_container_add (GTK_CONTAINER (scrolled), treeview);
gtk_widget_set_size_request (gtk_scrolled_window_get_vscrollbar (
GTK_SCROLLED_WINDOW (scrolled)), -1, 0);
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes ("suggestions", renderer, "text", 0, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
priv->popup = popup;
g_signal_connect (treeview, "button-press-event",
G_CALLBACK (formhistory_suggestion_selected_cb), priv);
return TRUE;
}
#endif