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- Up to now the web browser used several fixed size arrays to hold the various types attribute data of the web page. This turned out to be way to inflexible for any non-trivial web page. Therefore now all attribute data is stored in a single buffer one after the other as they arrive from the parser only occupying the memory actually needed. This allows for pages with many links with rather short URLs as well as pages with few link with long URLs as well as pages with several simple forms as well as pages with one form with many form inputs. - Using the actual web page buffer to hold the text buffers of text entry fields was in general a cool idea but in reality it is often necessary to enter text longer than the size of the text entry field. Therefore the text buffer is now stored in the new unified attribute data buffer. - Splitting up the process of canonicalizing a link URL and actually navigating to the resulting URL allowed to get rid of the 'tmpurl' buffer used during form submit. Now the form action is canonicalized like a usual link, then the form input name/value pairs are written right into the 'url' buffer and afterwards the navigation is triggered. - Support for the 'render states' was completely removed. The only actually supported render state was centered output. The new unified attribute buffer would have complicated enumerating all widgets added to the page in order to adjust their position. Therefore I decided to drop the whole feature as the <center> tag is barely used anymore and newer center attributes are to hard to parse.
939 lines
26 KiB
C
939 lines
26 KiB
C
/*
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* Copyright (c) 2002, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki desktop environment
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*
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*
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*/
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#include <string.h>
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#include <stddef.h>
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#include "ctk/ctk.h"
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#include "lib/ctk-textentry-cmdline.h"
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#include "contiki-net.h"
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#include "lib/petsciiconv.h"
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#include "sys/arg.h"
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#if WWW_CONF_WITH_WGET
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#include "program-handler.h"
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#endif /* WWW_CONF_WITH_WGET */
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#include "webclient.h"
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#include "htmlparser.h"
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#include "http-strings.h"
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#include "www.h"
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#if 1
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#define PRINTF(x)
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#else
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#include <stdio.h>
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#define PRINTF(x) printf x
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#endif
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/* The array that holds the current URL. */
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static char url[WWW_CONF_MAX_URLLEN + 1];
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/* The array that holds the web page text. */
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static char webpage[WWW_CONF_WEBPAGE_WIDTH *
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WWW_CONF_WEBPAGE_HEIGHT + 1];
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/* The CTK widgets for the main window. */
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static struct ctk_window mainwindow;
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#if WWW_CONF_HISTORY_SIZE > 0
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static struct ctk_button backbutton =
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{CTK_BUTTON(0, 0, 4, "Back")};
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static struct ctk_button downbutton =
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{CTK_BUTTON(10, 0, 4, "Down")};
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#else /* WWW_CONF_HISTORY_SIZE > 0 */
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static struct ctk_button downbutton =
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{CTK_BUTTON(0, 0, 4, "Down")};
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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static struct ctk_button stopbutton =
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{CTK_BUTTON(WWW_CONF_WEBPAGE_WIDTH - 16, 0, 4, "Stop")};
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static struct ctk_button gobutton =
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{CTK_BUTTON(WWW_CONF_WEBPAGE_WIDTH - 4, 0, 2, "Go")};
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static struct ctk_separator sep1 =
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{CTK_SEPARATOR(0, 2, WWW_CONF_WEBPAGE_WIDTH)};
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static char editurl[WWW_CONF_MAX_URLLEN + 1];
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static struct ctk_textentry urlentry =
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{CTK_TEXTENTRY(0, 1, WWW_CONF_WEBPAGE_WIDTH - 2,
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1, editurl, WWW_CONF_MAX_URLLEN)};
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static struct ctk_label webpagelabel =
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{CTK_LABEL(0, 3, WWW_CONF_WEBPAGE_WIDTH,
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WWW_CONF_WEBPAGE_HEIGHT, webpage)};
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static char statustexturl[WWW_CONF_WEBPAGE_WIDTH];
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static struct ctk_label statustext =
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{CTK_LABEL(0, WWW_CONF_WEBPAGE_HEIGHT + 4,
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WWW_CONF_WEBPAGE_WIDTH, 1, "")};
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static struct ctk_separator sep2 =
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{CTK_SEPARATOR(0, WWW_CONF_WEBPAGE_HEIGHT + 3,
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WWW_CONF_WEBPAGE_WIDTH)};
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#if WWW_CONF_WITH_WGET
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static struct ctk_window wgetdialog;
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static struct ctk_label wgetlabel1 =
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{CTK_LABEL(1, 1, 34, 1, "This web page cannot be displayed.")};
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static struct ctk_label wgetlabel2 =
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{CTK_LABEL(1, 3, 35, 1, "Would you like to download instead?")};
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static struct ctk_button wgetnobutton =
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{CTK_BUTTON(1, 5, 6, "Cancel")};
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static struct ctk_button wgetyesbutton =
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{CTK_BUTTON(11, 5, 24, "Close browser & download")};
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#endif /* WWW_CONF_WITH_WGET */
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#if WWW_CONF_HISTORY_SIZE > 0
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/* The char arrays that hold the history of visited URLs. */
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static char history[WWW_CONF_HISTORY_SIZE][WWW_CONF_MAX_URLLEN];
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static char history_last;
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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struct linkattrib {
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struct ctk_hyperlink hyperlink;
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char url[1];
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};
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struct inputattrib;
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struct formattrib {
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struct inputattrib *nextptr;
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char action[1];
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};
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struct inputattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_widget widget;
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};
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struct textattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_textentry textentry;
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char name[1];
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};
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struct submitattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_button button;
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char name[1];
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};
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static char pageattribs[WWW_CONF_PAGEATTRIB_SIZE];
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static char *pageattribptr;
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#if WWW_CONF_FORMS
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static struct formattrib *formptr;
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static struct inputattrib *currptr;
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#endif /* WWW_CONF_FORMS */
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#define ISO_nl 0x0a
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#define ISO_space 0x20
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#define ISO_ampersand 0x26
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#define ISO_plus 0x2b
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#define ISO_slash 0x2f
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#define ISO_eq 0x3d
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#define ISO_questionmark 0x3f
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/* The state of the rendering code. */
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static char *webpageptr;
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static unsigned char x, y;
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static unsigned char loading;
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static unsigned short firsty, pagey;
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static unsigned char count;
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static char receivingmsgs[4][23] = {
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"Receiving web page ...",
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"Receiving web page. ..",
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"Receiving web page.. .",
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"Receiving web page... "
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};
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PROCESS(www_process, "Web browser");
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AUTOSTART_PROCESSES(&www_process);
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static void CC_FASTCALL formsubmit(struct formattrib *form);
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/*-----------------------------------------------------------------------------------*/
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/* make_window()
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*
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* Creates the web browser's window.
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*/
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static void
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make_window(void)
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{
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#if WWW_CONF_HISTORY_SIZE > 0
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CTK_WIDGET_ADD(&mainwindow, &backbutton);
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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CTK_WIDGET_ADD(&mainwindow, &downbutton);
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CTK_WIDGET_ADD(&mainwindow, &stopbutton);
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CTK_WIDGET_ADD(&mainwindow, &gobutton);
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CTK_WIDGET_ADD(&mainwindow, &urlentry);
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CTK_WIDGET_ADD(&mainwindow, &sep1);
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CTK_WIDGET_ADD(&mainwindow, &webpagelabel);
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CTK_WIDGET_SET_FLAG(&webpagelabel, CTK_WIDGET_FLAG_MONOSPACE);
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CTK_WIDGET_ADD(&mainwindow, &sep2);
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CTK_WIDGET_ADD(&mainwindow, &statustext);
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pageattribptr = pageattribs;
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}
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/*-----------------------------------------------------------------------------------*/
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/* redraw_window():
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*
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* Convenience function that calls upon CTK to redraw the browser
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* window. */
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static void
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redraw_window(void)
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{
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ctk_window_redraw(&mainwindow);
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}
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/*-----------------------------------------------------------------------------------*/
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static char * CC_FASTCALL
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add_pageattrib(unsigned size)
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{
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char *ptr;
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if(pageattribptr + size > pageattribs + sizeof(pageattribs)) {
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return NULL;
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}
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ptr = pageattribptr;
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pageattribptr += size;
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return ptr;
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}
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/*-----------------------------------------------------------------------------------*/
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#if WWW_CONF_FORMS
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static void CC_FASTCALL
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add_forminput(struct inputattrib *inputptr)
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{
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inputptr->nextptr = NULL;
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currptr->nextptr = inputptr;
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currptr = inputptr;
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}
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#endif /* WWW_CONF_FORMS */
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/*-----------------------------------------------------------------------------------*/
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static void
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clear_page(void)
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{
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ctk_window_clear(&mainwindow);
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make_window();
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redraw_window();
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memset(webpage, 0, WWW_CONF_WEBPAGE_WIDTH * WWW_CONF_WEBPAGE_HEIGHT);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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show_url(void)
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{
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memcpy(editurl, url, WWW_CONF_MAX_URLLEN);
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strncpy(editurl, "http://", 7);
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petsciiconv_topetscii(editurl + 7, WWW_CONF_MAX_URLLEN - 7);
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CTK_WIDGET_REDRAW(&urlentry);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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start_loading(void)
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{
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loading = 1;
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x = y = 0;
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pagey = 0;
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webpageptr = webpage;
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clear_page();
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}
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/*-----------------------------------------------------------------------------------*/
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static void CC_FASTCALL
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show_statustext(char *text)
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{
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ctk_label_set_text(&statustext, text);
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CTK_WIDGET_REDRAW(&statustext);
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}
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/*-----------------------------------------------------------------------------------*/
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/* open_url():
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*
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* Called when the URL present in the global "url" variable should be
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* opened. It will call the hostname resolver as well as the HTTP
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* client requester.
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*/
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static void
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open_url(void)
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{
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unsigned char i;
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static char host[32];
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char *file;
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register char *urlptr;
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static uip_ipaddr_t addr;
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/* Trim off any spaces in the end of the url. */
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urlptr = url + strlen(url) - 1;
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while(*urlptr == ' ' && urlptr > url) {
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*urlptr = 0;
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--urlptr;
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}
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/* Don't even try to go further if the URL is empty. */
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if(urlptr == url) {
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return;
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}
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/* See if the URL starts with http://, otherwise prepend it. */
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if(strncmp(url, http_http, 7) != 0) {
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while(urlptr >= url) {
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*(urlptr + 7) = *urlptr;
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--urlptr;
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}
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strncpy(url, http_http, 7);
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}
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/* Find host part of the URL. */
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urlptr = &url[7];
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for(i = 0; i < sizeof(host); ++i) {
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if(*urlptr == 0 ||
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*urlptr == '/' ||
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*urlptr == ' ' ||
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*urlptr == ':') {
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host[i] = 0;
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break;
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}
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host[i] = *urlptr;
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++urlptr;
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}
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/* XXX: Here we should find the port part of the URL, but this isn't
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currently done because of laziness from the programmer's side
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:-) */
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/* Find file part of the URL. */
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while(*urlptr != '/' && *urlptr != 0) {
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++urlptr;
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}
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if(*urlptr == '/') {
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file = urlptr;
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} else {
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file = "/";
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}
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#if UIP_UDP
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/* Try to lookup the hostname. If it fails, we initiate a hostname
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lookup and print out an informative message on the statusbar. */
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if(uiplib_ipaddrconv(host, &addr) == 0) {
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if(resolv_lookup(host) == NULL) {
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resolv_query(host);
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show_statustext("Resolving host...");
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return;
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}
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}
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#else /* UIP_UDP */
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uiplib_ipaddrconv(host, &addr);
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#endif /* UIP_UDP */
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/* The hostname we present in the hostname table, so we send out the
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initial GET request. */
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if(webclient_get(host, 80, file) == 0) {
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show_statustext("Out of memory error");
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} else {
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show_statustext("Connecting...");
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}
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redraw_window();
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}
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/*-----------------------------------------------------------------------------------*/
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/* set_link(link):
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*
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* Will format a link from the current web pages so that it suits the
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* open_url() function.
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*/
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static void CC_FASTCALL
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set_link(char *link)
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{
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register char *urlptr;
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if(strncmp(link, http_http, 7) == 0) {
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/* The link starts with http://. We just copy the contents of the
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link into the url string and jump away. */
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strncpy(url, link, WWW_CONF_MAX_URLLEN);
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} else if(*link == ISO_slash &&
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*(link + 1) == ISO_slash) {
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/* The link starts with //, so we'll copy it into the url
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variable, starting after the http (which already is present in
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the url variable since we were able to open the web page on
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which this link was found in the first place). */
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strncpy(&url[5], link, WWW_CONF_MAX_URLLEN);
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} else if(*link == ISO_slash) {
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/* The link starts with a slash, so it is a non-relative link
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within the same web site. We find the start of the filename of
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the current URL and paste the contents of this link there, and
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head off to the new URL. */
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for(urlptr = &url[7];
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*urlptr != 0 && *urlptr != ISO_slash;
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++urlptr);
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strncpy(urlptr, link, WWW_CONF_MAX_URLLEN - (urlptr - url));
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} else {
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/* A fully relative link is found. We find the last slash in the
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current URL and paste the link there. */
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/* XXX: we should really parse any ../ in the link as well. */
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for(urlptr = url + strlen(url);
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urlptr != url && *urlptr != ISO_slash;
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--urlptr);
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++urlptr;
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strncpy(urlptr, link, WWW_CONF_MAX_URLLEN - (urlptr - url));
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}
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}
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/*-----------------------------------------------------------------------------------*/
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#if WWW_CONF_HISTORY_SIZE > 0
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/* log_back():
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*
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* Copies the current URL from the url variable and into the log for
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* the back button.
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*/
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static void
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log_back(void)
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{
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if(strncmp(url, history[(int)history_last], WWW_CONF_MAX_URLLEN) != 0) {
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memcpy(history[(int)history_last], url, WWW_CONF_MAX_URLLEN);
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++history_last;
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if(history_last >= WWW_CONF_HISTORY_SIZE) {
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history_last = 0;
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}
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}
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}
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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/*-----------------------------------------------------------------------------------*/
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static void
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quit(void)
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{
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ctk_window_close(&mainwindow);
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process_exit(&www_process);
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LOADER_UNLOAD();
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}
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/*-----------------------------------------------------------------------------------*/
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/* www_process():
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*
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* The program's signal dispatcher function. Is called whenever a signal arrives.
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*/
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PROCESS_THREAD(www_process, ev, data)
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{
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static struct ctk_widget *w;
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static unsigned char i;
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#if WWW_CONF_WITH_WGET
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static char *argptr;
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#endif /* WWW_CONF_WITH_WGET */
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w = (struct ctk_widget *)data;
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PROCESS_BEGIN();
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/* Create the main window. */
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memset(webpage, 0, sizeof(webpage));
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ctk_window_new(&mainwindow, WWW_CONF_WEBPAGE_WIDTH,
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WWW_CONF_WEBPAGE_HEIGHT+5, "Web browser");
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make_window();
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#ifdef WWW_CONF_HOMEPAGE
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strncpy(editurl, WWW_CONF_HOMEPAGE, sizeof(editurl));
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#endif /* WWW_CONF_HOMEPAGE */
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CTK_WIDGET_FOCUS(&mainwindow, &urlentry);
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#if WWW_CONF_WITH_WGET
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/* Create download dialog.*/
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ctk_dialog_new(&wgetdialog, 38, 7);
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CTK_WIDGET_ADD(&wgetdialog, &wgetlabel1);
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CTK_WIDGET_ADD(&wgetdialog, &wgetlabel2);
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CTK_WIDGET_ADD(&wgetdialog, &wgetnobutton);
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CTK_WIDGET_ADD(&wgetdialog, &wgetyesbutton);
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#endif /* WWW_CONF_WITH_WGET */
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ctk_window_open(&mainwindow);
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ev == tcpip_event) {
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webclient_appcall(data);
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} else if(ev == ctk_signal_widget_activate) {
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if(w == (struct ctk_widget *)&gobutton ||
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w == (struct ctk_widget *)&urlentry) {
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start_loading();
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firsty = 0;
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
memcpy(url, editurl, WWW_CONF_MAX_URLLEN);
|
|
petsciiconv_toascii(url, WWW_CONF_MAX_URLLEN);
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &gobutton);
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
} else if(w == (struct ctk_widget *)&backbutton) {
|
|
firsty = 0;
|
|
start_loading();
|
|
--history_last;
|
|
if(history_last > WWW_CONF_HISTORY_SIZE) {
|
|
history_last = WWW_CONF_HISTORY_SIZE - 1;
|
|
}
|
|
memcpy(url, history[(int)history_last], WWW_CONF_MAX_URLLEN);
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &backbutton);
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
} else if(w == (struct ctk_widget *)&downbutton) {
|
|
firsty = pagey + WWW_CONF_WEBPAGE_HEIGHT - 4;
|
|
start_loading();
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &downbutton);
|
|
} else if(w == (struct ctk_widget *)&stopbutton) {
|
|
loading = 0;
|
|
webclient_close();
|
|
#if WWW_CONF_WITH_WGET
|
|
} else if(w == (struct ctk_widget *)&wgetnobutton) {
|
|
ctk_dialog_close();
|
|
} else if(w == (struct ctk_widget *)&wgetyesbutton) {
|
|
ctk_dialog_close();
|
|
quit();
|
|
argptr = arg_alloc((char)WWW_CONF_MAX_URLLEN);
|
|
if(argptr != NULL) {
|
|
strncpy(argptr, url, WWW_CONF_MAX_URLLEN);
|
|
}
|
|
program_handler_load("wget.prg", argptr);
|
|
#endif /* WWW_CONF_WITH_WGET */
|
|
#if WWW_CONF_FORMS
|
|
} else {
|
|
/* Assume form widget. */
|
|
struct inputattrib *input = (struct inputattrib *)
|
|
(((char *)w) - offsetof(struct inputattrib, widget));
|
|
formsubmit(input->formptr);
|
|
#endif /* WWW_CONF_FORMS */
|
|
}
|
|
} else if(ev == ctk_signal_hyperlink_activate) {
|
|
firsty = 0;
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
set_link(w->widget.hyperlink.url);
|
|
show_url();
|
|
open_url();
|
|
start_loading();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &stopbutton);
|
|
} else if(ev == ctk_signal_hyperlink_hover) {
|
|
if(CTK_WIDGET_TYPE((struct ctk_widget *)data) == CTK_WIDGET_HYPERLINK) {
|
|
strncpy(statustexturl, w->widget.hyperlink.url,
|
|
sizeof(statustexturl));
|
|
petsciiconv_topetscii(statustexturl, sizeof(statustexturl));
|
|
show_statustext(statustexturl);
|
|
}
|
|
#if UIP_UDP
|
|
} else if(ev == resolv_event_found) {
|
|
/* Either found a hostname, or not. */
|
|
if((char *)data != NULL && resolv_lookup((char *)data) != NULL) {
|
|
open_url();
|
|
} else {
|
|
show_statustext("Host not found");
|
|
}
|
|
#endif /* UIP_UDP */
|
|
} else if(ev == ctk_signal_window_close ||
|
|
ev == PROCESS_EVENT_EXIT) {
|
|
quit();
|
|
}
|
|
}
|
|
PROCESS_END();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* set_url():
|
|
*
|
|
* Constructs an URL from the arguments and puts it into the global
|
|
* "url" variable and the visible "editurl" (which is shown in the URL
|
|
* text entry widget in the browser window).
|
|
*/
|
|
static void CC_FASTCALL
|
|
set_url(char *host, uint16_t port, char *file)
|
|
{
|
|
char *urlptr;
|
|
|
|
memset(url, 0, WWW_CONF_MAX_URLLEN);
|
|
|
|
if(strncmp(file, http_http, 7) == 0) {
|
|
strncpy(url, file, sizeof(url));
|
|
} else {
|
|
strncpy(url, http_http, 7);
|
|
urlptr = url + 7;
|
|
strcpy(urlptr, host);
|
|
urlptr += strlen(host);
|
|
strcpy(urlptr, file);
|
|
}
|
|
|
|
show_url();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_aborted():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection was abruptly aborted.
|
|
*/
|
|
void
|
|
webclient_aborted(void)
|
|
{
|
|
show_statustext("Connection reset by peer");
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_timedout():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection timed out.
|
|
*/
|
|
void
|
|
webclient_timedout(void)
|
|
{
|
|
show_statustext("Connection timed out");
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_closed():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection was closed after a request from the "webclient_close()"
|
|
* function.
|
|
*/
|
|
void
|
|
webclient_closed(void)
|
|
{
|
|
show_statustext("Stopped");
|
|
petsciiconv_topetscii(webpageptr - x, x);
|
|
CTK_WIDGET_FOCUS(&mainwindow, &downbutton);
|
|
redraw_window();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_connected():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection is connected.
|
|
*/
|
|
void
|
|
webclient_connected(void)
|
|
{
|
|
start_loading();
|
|
|
|
clear_page();
|
|
|
|
show_statustext("Request sent...");
|
|
set_url(webclient_hostname(), webclient_port(), webclient_filename());
|
|
|
|
htmlparser_init();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_datahandler():
|
|
*
|
|
* Callback function. Called from the webclient module when HTTP data
|
|
* has arrived.
|
|
*/
|
|
void
|
|
webclient_datahandler(char *data, uint16_t len)
|
|
{
|
|
if(len > 0) {
|
|
if(strstr(webclient_mimetype(), http_html + 1) != 0) {
|
|
count = (count + 1) & 3;
|
|
show_statustext(receivingmsgs[count]);
|
|
htmlparser_parse(data, len);
|
|
redraw_window();
|
|
} else {
|
|
show_statustext("Cannot display web page");
|
|
uip_abort();
|
|
#if WWW_CONF_WITH_WGET
|
|
ctk_dialog_open(&wgetdialog);
|
|
#endif /* WWW_CONF_WITH_WGET */
|
|
}
|
|
} else {
|
|
/* Clear remaining parts of page. */
|
|
loading = 0;
|
|
}
|
|
|
|
if(data == NULL) {
|
|
loading = 0;
|
|
show_statustext("Done");
|
|
petsciiconv_topetscii(webpageptr - x, x);
|
|
CTK_WIDGET_FOCUS(&mainwindow, &urlentry);
|
|
redraw_window();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void CC_FASTCALL
|
|
add_pagewidget(char *text, unsigned char textlen, char *attrib, unsigned char type,
|
|
unsigned char border)
|
|
{
|
|
char *wptr;
|
|
static unsigned char maxwidth;
|
|
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
|
|
if(textlen + border == 0) {
|
|
return;
|
|
}
|
|
|
|
maxwidth = WWW_CONF_WEBPAGE_WIDTH - (1 + 2 * border);
|
|
|
|
/* If the text of the link is too long so that it does not fit into
|
|
the width of the current window, counting from the current x
|
|
coordinate, we first try to jump to the next line. */
|
|
if(textlen + x > maxwidth) {
|
|
htmlparser_newline();
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* If the text of the link still is too long, we just chop it off!
|
|
XXX: this is not really the right thing to do, we should probably
|
|
either make a link into a multiline link, or add multiple
|
|
buttons. But this will do for now. */
|
|
if(textlen > maxwidth) {
|
|
text[maxwidth] = 0;
|
|
textlen = maxwidth;
|
|
}
|
|
|
|
if(firsty == pagey) {
|
|
unsigned char attriblen = strlen(attrib);
|
|
|
|
wptr = webpageptr;
|
|
/* To save memory, we'll copy the widget text to the web page
|
|
drawing area and reference it from there. */
|
|
wptr[0] = 0;
|
|
wptr += border;
|
|
memcpy(wptr, text, textlen);
|
|
wptr[textlen] = 0;
|
|
wptr[textlen + border] = ' ';
|
|
|
|
switch(type) {
|
|
case CTK_WIDGET_HYPERLINK: {
|
|
struct linkattrib *linkptr;
|
|
|
|
linkptr = (struct linkattrib *)add_pageattrib(sizeof(struct linkattrib) /* incl 1 attrib char */ + attriblen);
|
|
if(linkptr != NULL) {
|
|
CTK_HYPERLINK_NEW(&linkptr->hyperlink, x, y + 3, textlen, wptr, linkptr->url);
|
|
strcpy(linkptr->url, attrib);
|
|
CTK_WIDGET_SET_FLAG(&linkptr->hyperlink, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &linkptr->hyperlink);
|
|
}
|
|
break;
|
|
}
|
|
#if WWW_CONF_FORMS
|
|
case CTK_WIDGET_BUTTON: {
|
|
struct submitattrib *submitptr;
|
|
|
|
submitptr = (struct submitattrib *)add_pageattrib(sizeof(struct submitattrib) /* incl 1 attrib char */ + attriblen);
|
|
if(submitptr != NULL) {
|
|
CTK_BUTTON_NEW((struct ctk_button *)&submitptr->button, x, y + 3, textlen, wptr);
|
|
add_forminput((struct inputattrib *)submitptr);
|
|
submitptr->formptr = formptr;
|
|
strcpy(submitptr->name, attrib);
|
|
CTK_WIDGET_SET_FLAG(&submitptr->button, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &submitptr->button);
|
|
}
|
|
break;
|
|
}
|
|
case CTK_WIDGET_TEXTENTRY: {
|
|
struct textattrib *textptr;
|
|
|
|
textptr = (struct textattrib *)add_pageattrib(sizeof(struct textattrib) /* incl 1 attrib char */ + attriblen + WWW_CONF_MAX_INPUTVALUELEN);
|
|
if(textptr != NULL) {
|
|
CTK_TEXTENTRY_NEW((struct ctk_textentry *)&textptr->textentry, x, y + 3, textlen, 1,
|
|
textptr->name + attriblen + 1, WWW_CONF_MAX_INPUTVALUELEN);
|
|
add_forminput((struct inputattrib *)textptr);
|
|
textptr->formptr = formptr;
|
|
strcpy(textptr->textentry.text, text);
|
|
strcpy(textptr->name, attrib);
|
|
CTK_WIDGET_SET_FLAG(&textptr->textentry, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &textptr->textentry);
|
|
}
|
|
break;
|
|
}
|
|
#endif /* WWW_CONF_FORMS */
|
|
}
|
|
}
|
|
/* Increase the x coordinate with the length of the link text plus
|
|
the extra space behind it and the CTK button markers. */
|
|
textlen = textlen + 1 + 2 * border;
|
|
x += textlen;
|
|
|
|
if(firsty == pagey) {
|
|
webpageptr += textlen;
|
|
}
|
|
|
|
if(x == WWW_CONF_WEBPAGE_WIDTH) {
|
|
htmlparser_newline();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_newline(void)
|
|
{
|
|
char *wptr;
|
|
|
|
if(pagey < firsty) {
|
|
++pagey;
|
|
x = 0;
|
|
return;
|
|
}
|
|
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
|
|
webpageptr += (WWW_CONF_WEBPAGE_WIDTH - x);
|
|
++y;
|
|
x = 0;
|
|
|
|
wptr = webpageptr - WWW_CONF_WEBPAGE_WIDTH;
|
|
petsciiconv_topetscii(wptr, WWW_CONF_WEBPAGE_WIDTH);
|
|
|
|
if(y == WWW_CONF_WEBPAGE_HEIGHT) {
|
|
loading = 0;
|
|
webclient_close();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_word(char *word, unsigned char wordlen)
|
|
{
|
|
if(loading) {
|
|
if(wordlen + 1 > WWW_CONF_WEBPAGE_WIDTH - x) {
|
|
htmlparser_newline();
|
|
}
|
|
|
|
if(loading) {
|
|
if(pagey == firsty) {
|
|
memcpy(webpageptr, word, wordlen);
|
|
webpageptr += wordlen;
|
|
*webpageptr = ' ';
|
|
++webpageptr;
|
|
}
|
|
x += wordlen + 1;
|
|
if(x == WWW_CONF_WEBPAGE_WIDTH) {
|
|
htmlparser_newline();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_link(char *text, unsigned char textlen, char *url)
|
|
{
|
|
add_pagewidget(text, textlen, url, CTK_WIDGET_HYPERLINK, 0);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
#if WWW_CONF_FORMS
|
|
void
|
|
htmlparser_form(char *action)
|
|
{
|
|
formptr = (struct formattrib *)add_pageattrib(sizeof(struct formattrib) + strlen(action));
|
|
if(formptr != NULL) {
|
|
formptr->nextptr = NULL;
|
|
currptr = (struct inputattrib *)formptr;
|
|
strcpy(formptr->action, action);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_submitbutton(char *text, char *name)
|
|
{
|
|
add_pagewidget(text, (unsigned char)strlen(text), name, CTK_WIDGET_BUTTON, 1);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_inputfield(unsigned char size, char *text, char *name)
|
|
{
|
|
add_pagewidget(text, size, name, CTK_WIDGET_TEXTENTRY, 1);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void CC_FASTCALL
|
|
add_query(char delimiter, char *string)
|
|
{
|
|
static char *query;
|
|
unsigned char length;
|
|
|
|
if(delimiter == ISO_questionmark) {
|
|
query = url + strlen(url);
|
|
}
|
|
|
|
length = strlen(string);
|
|
if(query - url + WWW_CONF_MAX_URLLEN - 1 /* delimiter */ < length) {
|
|
return;
|
|
}
|
|
|
|
*query++ = delimiter;
|
|
strcpy(query, string);
|
|
if(delimiter == ISO_eq) {
|
|
char *space = query;
|
|
|
|
petsciiconv_toascii(query, length);
|
|
while((space = strchr(space, ISO_space)) != NULL) {
|
|
*space = ISO_plus;
|
|
}
|
|
}
|
|
query += length;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void CC_FASTCALL
|
|
formsubmit(struct formattrib *form)
|
|
{
|
|
struct inputattrib *inputptr;
|
|
char delimiter = ISO_questionmark;
|
|
|
|
set_link(form->action);
|
|
|
|
for(inputptr = form->nextptr; inputptr != NULL; inputptr = inputptr->nextptr) {
|
|
char *name;
|
|
char *value;
|
|
|
|
if(inputptr->widget.type == CTK_WIDGET_BUTTON) {
|
|
name = ((struct submitattrib *)inputptr)->name;
|
|
value = ((struct submitattrib *)inputptr)->button.text;
|
|
} else {
|
|
name = ((struct textattrib *)inputptr)->name;
|
|
value = ((struct textattrib *)inputptr)->textentry.text;
|
|
}
|
|
|
|
add_query(delimiter, name);
|
|
add_query(ISO_eq, value);
|
|
delimiter = ISO_ampersand;
|
|
}
|
|
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
|
|
show_url();
|
|
open_url();
|
|
start_loading();
|
|
}
|
|
#endif /* WWW_CONF_FORMS */
|
|
/*-----------------------------------------------------------------------------------*/
|