2 * Claws Mail -- A GTK+ based, lightweight, and fast e-mail client
3 * Copyright(C) 1999-2015 the Claws Mail Team
5 * This file Copyright (C) 2009-2015 Salvatore De Paolis
6 * <iwkse@claws-mail.org> and the Claws Mail Team
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write tothe Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 #include "claws-features.h"
26 #include <glib/gstdio.h>
28 #include <sys/types.h>
30 #include <curl/curl.h>
32 #include "lh_widget.h"
33 #include "lh_widget_wrapped.h"
40 static gboolean expose_event_cb(GtkWidget *widget, GdkEvent *event,
42 static void size_allocate_cb(GtkWidget *widget, GdkRectangle *allocation,
44 static gboolean button_press_event(GtkWidget *widget, GdkEventButton *event,
46 static gboolean motion_notify_event(GtkWidget *widget, GdkEventButton *event,
48 static gboolean button_release_event(GtkWidget *widget, GdkEventButton *event,
51 lh_widget::lh_widget()
54 m_scrolled_window = gtk_scrolled_window_new(NULL, NULL);
55 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(m_scrolled_window),
56 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
57 g_signal_connect(m_scrolled_window, "size-allocate",
58 G_CALLBACK(size_allocate_cb), this);
61 GtkScrolledWindow *scw = GTK_SCROLLED_WINDOW(m_scrolled_window);
62 m_viewport = gtk_viewport_new(
63 gtk_scrolled_window_get_hadjustment(scw),
64 gtk_scrolled_window_get_vadjustment(scw));
65 gtk_container_add(GTK_CONTAINER(m_scrolled_window), m_viewport);
68 m_drawing_area = gtk_drawing_area_new();
69 gtk_container_add(GTK_CONTAINER(m_viewport), m_drawing_area);
70 g_signal_connect(m_drawing_area, "expose-event",
71 G_CALLBACK(expose_event_cb), this);
72 g_signal_connect(m_drawing_area, "motion_notify_event",
73 G_CALLBACK(motion_notify_event), this);
74 g_signal_connect(m_drawing_area, "button_press_event",
75 G_CALLBACK(button_press_event), this);
76 g_signal_connect(m_drawing_area, "button_release_event",
77 G_CALLBACK(button_release_event), this);
79 gtk_widget_show_all(m_scrolled_window);
83 m_context.load_master_stylesheet(master_css);
85 gtk_widget_set_events(m_drawing_area,
86 GDK_BUTTON_RELEASE_MASK
87 | GDK_BUTTON_PRESS_MASK
88 | GDK_POINTER_MOTION_MASK);
92 lh_widget::~lh_widget()
94 g_object_unref(m_drawing_area);
95 m_drawing_area = NULL;
96 g_object_unref(m_scrolled_window);
97 m_scrolled_window = NULL;
101 GtkWidget *lh_widget::get_widget() const
103 return m_scrolled_window;
106 void lh_widget::set_caption(const litehtml::tchar_t* caption)
108 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget set_caption");
112 void lh_widget::set_base_url(const litehtml::tchar_t* base_url)
114 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget set_base_url");
118 void lh_widget::on_anchor_click(const litehtml::tchar_t* url, const litehtml::element::ptr& el)
120 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget on_anchor_click. url -> %s", url);
126 void lh_widget::set_cursor(const litehtml::tchar_t* cursor)
128 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget set_cursor");
133 void lh_widget::import_css(litehtml::tstring& text, const litehtml::tstring& url, litehtml::tstring& baseurl)
135 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget import_css");
136 baseurl = master_css;
139 void lh_widget::get_client_rect(litehtml::position& client) const
141 if (m_drawing_area == NULL)
144 client.width = m_rendered_width;
145 client.height = m_height;
149 // g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget::get_client_rect: %dx%d",
150 // client.width, client.height);
153 GdkPixbuf *lh_widget::get_image(const litehtml::tchar_t* url, bool redraw_on_ready)
155 GError *error = NULL;
156 GdkPixbuf *pixbuf = NULL;
158 g_log(NULL, G_LOG_LEVEL_MESSAGE, "Loading... %s", url);
161 GInputStream *image = http_loader.load_url(url, &error);
163 if (!image) return NULL;
165 pixbuf = gdk_pixbuf_new_from_stream(image, NULL, &error);
167 g_log(NULL, G_LOG_LEVEL_ERROR, "lh_widget::get_image: Could not create pixbuf %s", error->message);
168 //g_object_unref(pixbuf);
170 g_clear_error(&error);
172 g_input_stream_close(image, NULL, NULL);
174 /* if (redraw_on_ready) {
181 void lh_widget::open_html(const gchar *contents)
183 m_html = litehtml::document::createFromString(contents, this, &m_context);
184 m_rendered_width = 0;
185 if (m_html != NULL) {
186 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget::open_html created document");
191 void lh_widget::draw(cairo_t *cr)
193 double x1, x2, y1, y2;
194 double width, height;
199 cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
204 litehtml::position pos;
205 pos.width = (int)width;
206 pos.height = (int)height;
210 m_html->draw((litehtml::uint_ptr)cr, 0, 0, &pos);
213 void lh_widget::redraw()
220 if (m_html == NULL) {
221 g_log(NULL, G_LOG_LEVEL_WARNING, "lh_widget::redraw: No document!");
225 /* Get width of the viewport. */
226 gdkwin = gtk_viewport_get_view_window(GTK_VIEWPORT(m_viewport));
227 gdk_drawable_get_size(gdkwin, &width, NULL);
229 /* If the available width has changed, rerender the HTML content. */
230 if (m_rendered_width != width) {
231 g_log(NULL, G_LOG_LEVEL_MESSAGE,
232 "lh_widget::redraw: width changed: %d != %d",
233 m_rendered_width, width);
235 /* Update our internally stored width, mainly so that
236 * lh_widget::get_client_rect() gives correct width during the
238 m_rendered_width = width;
240 /* Re-render HTML for this width. */
241 m_html->media_changed();
242 m_html->render(m_rendered_width);
243 g_log(NULL, G_LOG_LEVEL_MESSAGE, "render is %dx%d",
244 m_html->width(), m_html->height());
246 /* Change drawing area's size to match what was rendered. */
247 gtk_widget_set_size_request(m_drawing_area,
248 m_html->width(), m_html->height());
253 /* Paint the rendered HTML. */
254 gdkwin = gtk_widget_get_window(m_drawing_area);
255 if (gdkwin == NULL) {
256 g_log(NULL, G_LOG_LEVEL_WARNING, "lh_widget::redraw: No GdkWindow to draw on!");
259 cr = gdk_cairo_create(GDK_DRAWABLE(gdkwin));
265 void lh_widget::paint_white()
267 GdkWindow *gdkwin = gtk_widget_get_window(m_drawing_area);
268 if (gdkwin == NULL) {
269 g_log(NULL, G_LOG_LEVEL_WARNING, "lh_widget::clear: No GdkWindow to draw on!");
272 cairo_t *cr = gdk_cairo_create(GDK_DRAWABLE(gdkwin));
274 /* Paint white background. */
276 gdk_drawable_get_size(gdkwin, &width, &height);
277 cairo_rectangle(cr, 0, 0, width, height);
278 cairo_set_source_rgb(cr, 255, 255, 255);
283 void lh_widget::clear()
286 m_rendered_width = 0;
289 static gboolean expose_event_cb(GtkWidget *widget, GdkEvent *event,
292 lh_widget *w = (lh_widget *)user_data;
297 static void size_allocate_cb(GtkWidget *widget, GdkRectangle *allocation,
300 lh_widget *w = (lh_widget *)user_data;
302 g_log(NULL, G_LOG_LEVEL_MESSAGE, "size_allocate_cb: %dx%d",
303 allocation->width, allocation->height);
305 w->setHeight(allocation->height);
309 static gboolean button_press_event(GtkWidget *widget, GdkEventButton *event,
312 litehtml::position::vector redraw_boxes;
313 lh_widget *w = (lh_widget *)user_data;
315 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget on_button_press_event");
319 if(w->m_html->on_lbutton_down((int) event->x, (int) event->y, (int) event->x, (int) event->y, redraw_boxes))
321 for(auto& pos : redraw_boxes)
323 gtk_widget_queue_draw_area(widget, pos.x, pos.y, pos.width, pos.height);
331 static gboolean motion_notify_event(GtkWidget *widget, GdkEventButton *event,
334 litehtml::position::vector redraw_boxes;
335 lh_widget *w = (lh_widget *)user_data;
337 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget on_motion_notify_event");
341 if(w->m_html->on_mouse_over((int) event->x, (int) event->y, (int) event->x, (int) event->y, redraw_boxes))
343 for (auto& pos : redraw_boxes)
345 gtk_widget_queue_draw_area(widget, pos.x, pos.y, pos.width, pos.height);
353 static gboolean button_release_event(GtkWidget *widget, GdkEventButton *event,
356 litehtml::position::vector redraw_boxes;
357 lh_widget *w = (lh_widget *)user_data;
358 GError* error = NULL;
360 g_log(NULL, G_LOG_LEVEL_MESSAGE, "lh_widget on_button_release_event");
364 w->m_clicked_url.clear();
365 if(w->m_html->on_lbutton_up((int) event->x, (int) event->y, (int) event->x, (int) event->y, redraw_boxes))
367 for (auto& pos : redraw_boxes)
369 gtk_widget_queue_draw_area(widget, pos.x, pos.y, pos.width, pos.height);
373 if (!w->m_clicked_url.empty())
375 g_log(NULL, G_LOG_LEVEL_MESSAGE, "Open in browser: %s", w->m_clicked_url.c_str());
376 gtk_show_uri(NULL, w->m_clicked_url.c_str(), GDK_CURRENT_TIME, &error);
378 g_log(NULL, G_LOG_LEVEL_ERROR, "Failed opening url(%s): %s", w->m_clicked_url, error->message);
379 g_clear_error(&error);
387 ///////////////////////////////////////////////////////////
390 lh_widget_wrapped *lh_widget_new()
392 return new lh_widget;
395 GtkWidget *lh_widget_get_widget(lh_widget_wrapped *w)
397 return w->get_widget();
400 void lh_widget_open_html(lh_widget_wrapped *w, const gchar *path)
405 void lh_widget_clear(lh_widget_wrapped *w)
410 void lh_widget_destroy(lh_widget_wrapped *w)